Vulnerability-Lookup

ALSA-2026:88477

Vulnerability from osv_almalinux – Published: 2026-10-22 00:00 – Updated: 2026-10-24 00:43 – Source website

Summary

Important: kernel security, bug fix, and enhancement update

Details

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

kernel: calipso: Don't call calipso functions for AF_INET sk. (CVE-2025-38147)
kernel: ipv4: raw: reject IP_HDRINCL packets with ihl < 5 (CVE-2026-64114)
kernel: net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot (CVE-2026-64048)
kernel: ALSA: hda/cs35l41: Fix firmware load work teardown (CVE-2026-64481)
kernel: fuse: re-lock request before returning from fuse_ref_folio() (CVE-2026-64266)
kernel: ipv4: fib: free fib_alias with kfree_rcu() on insert error path (CVE-2026-64572)
kernel: drm/amd/display: set new_stream to NULL after release (CVE-2026-68236)
kernel: ALSA: seq: close a re-opened queue timer in the destructor (CVE-2026-68202)
kernel: drm/dp/mst: fix buffer overflows in sideband chunk accumulation (CVE-2026-68278)
kernel: drm/amdgpu: fix lifetime issue of amdgpu_vm_get_task_info_pasid() (CVE-2026-68245)
kernel: ovl: check access to copy_file_range source with src mounter creds (CVE-2026-68448)
kernel: xfs: bounds-check buffer log item's dirty bitmap (CVE-2026-80536)
kernel: inet: frags: strip GSO state from fragments before reassembly (CVE-2026-80590)
kernel: drm/vmwgfx: use check_add_overflow for shader size+offset bound (CVE-2026-80887)
kernel: perf: Fix use-after-free when perf mmap() revival races with the last munmap() (CVE-2026-89791)
kernel: drm/amdkfd: Add TLB flush after MES queue eviction/suspension (CVE-2026-89811)
kernel: perf: Fix addr_filter_ranges lifetime (CVE-2026-93817)
kernel: drm/amdgpu: Bound GPIO I2C table entry count from VBIOS (CVE-2026-97493)

Bug Fix(es) and Enhancement(s):

Backport request: bonding: only set speed/duplex to unknown, if getting speed failed [almalinux-10.2.z] (JIRA:AlmaLinux-179066)
RTLA segfaults on freed memory access on double SIGINT [almalinux-10.2.z] (JIRA:AlmaLinux-193031)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2026:88477	ADVISORY
	https://access.redhat.com/security/cve/CVE-2025-38147	REPORT
	https://access.redhat.com/security/cve/CVE-2026-64048	REPORT
	https://access.redhat.com/security/cve/CVE-2026-64114	REPORT
	https://access.redhat.com/security/cve/CVE-2026-64266	REPORT
	https://access.redhat.com/security/cve/CVE-2026-64481	REPORT
	https://access.redhat.com/security/cve/CVE-2026-64572	REPORT
	https://access.redhat.com/security/cve/CVE-2026-68202	REPORT
	https://access.redhat.com/security/cve/CVE-2026-68236	REPORT
	https://access.redhat.com/security/cve/CVE-2026-68245	REPORT
	https://access.redhat.com/security/cve/CVE-2026-68278	REPORT
	https://access.redhat.com/security/cve/CVE-2026-68448	REPORT
	https://access.redhat.com/security/cve/CVE-2026-80536	REPORT
	https://access.redhat.com/security/cve/CVE-2026-80590	REPORT
	https://access.redhat.com/security/cve/CVE-2026-80887	REPORT
	https://access.redhat.com/security/cve/CVE-2026-89791	REPORT
	https://access.redhat.com/security/cve/CVE-2026-89811	REPORT
	https://access.redhat.com/security/cve/CVE-2026-93817	REPORT
	https://access.redhat.com/security/cve/CVE-2026-97493	REPORT
	https://bugzilla.redhat.com/2376106	REPORT
	https://bugzilla.redhat.com/2502486	REPORT
	https://bugzilla.redhat.com/2502589	REPORT
	https://bugzilla.redhat.com/2507038	REPORT
	https://bugzilla.redhat.com/2507098	REPORT
	https://bugzilla.redhat.com/2511413	REPORT
	https://bugzilla.redhat.com/2513148	REPORT
	https://bugzilla.redhat.com/2513245	REPORT
	https://bugzilla.redhat.com/2513287	REPORT
	https://bugzilla.redhat.com/2513430	REPORT
	https://bugzilla.redhat.com/2514462	REPORT
	https://bugzilla.redhat.com/2524501	REPORT
	https://bugzilla.redhat.com/2525413	REPORT
	https://bugzilla.redhat.com/2528788	REPORT
	https://bugzilla.redhat.com/2535070	REPORT
	https://bugzilla.redhat.com/2535309	REPORT
	https://bugzilla.redhat.com/2540391	REPORT
	https://bugzilla.redhat.com/2540475	REPORT
	https://errata.almalinux.org/10/ALSA-2026-88477.html	ADVISORY

JSON

To clipboard

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          "type": "ECOSYSTEM"
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  ],
  "details": "The kernel packages contain the Linux kernel, the core of any Linux operating system.  \n\nSecurity Fix(es):  \n\n  * kernel: calipso: Don\u0027t call calipso functions for AF_INET sk. (CVE-2025-38147)\n  * kernel: ipv4: raw: reject IP_HDRINCL packets with ihl \u003c 5 (CVE-2026-64114)\n  * kernel: net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot (CVE-2026-64048)\n  * kernel: ALSA: hda/cs35l41: Fix firmware load work teardown (CVE-2026-64481)\n  * kernel: fuse: re-lock request before returning from fuse_ref_folio() (CVE-2026-64266)\n  * kernel: ipv4: fib: free fib_alias with kfree_rcu() on insert error path (CVE-2026-64572)\n  * kernel: drm/amd/display: set new_stream to NULL after release (CVE-2026-68236)\n  * kernel: ALSA: seq: close a re-opened queue timer in the destructor (CVE-2026-68202)\n  * kernel: drm/dp/mst: fix buffer overflows in sideband chunk accumulation (CVE-2026-68278)\n  * kernel: drm/amdgpu: fix lifetime issue of amdgpu_vm_get_task_info_pasid() (CVE-2026-68245)\n  * kernel: ovl: check access to copy_file_range source with src mounter creds (CVE-2026-68448)\n  * kernel: xfs: bounds-check buffer log item\u0027s dirty bitmap (CVE-2026-80536)\n  * kernel: inet: frags: strip GSO state from fragments before reassembly (CVE-2026-80590)\n  * kernel: drm/vmwgfx: use check_add_overflow for shader size+offset bound (CVE-2026-80887)\n  * kernel: perf: Fix use-after-free when perf mmap() revival races with the last munmap() (CVE-2026-89791)\n  * kernel: drm/amdkfd: Add TLB flush after MES queue eviction/suspension (CVE-2026-89811)\n  * kernel: perf: Fix addr_filter_ranges lifetime (CVE-2026-93817)\n  * kernel: drm/amdgpu: Bound GPIO I2C table entry count from VBIOS (CVE-2026-97493)\n\n\nBug Fix(es) and Enhancement(s):  \n\n  * Backport request: bonding: only set speed/duplex to unknown, if getting speed failed [almalinux-10.2.z] (JIRA:AlmaLinux-179066)\n  * RTLA segfaults on freed memory access on double SIGINT [almalinux-10.2.z] (JIRA:AlmaLinux-193031)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
  "id": "ALSA-2026:88477",
  "modified": "2026-10-24T00:43:22Z",
  "published": "2026-10-22T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:88477"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-38147"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-64048"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-64114"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-64266"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-64481"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-64572"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-68202"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-68236"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-68245"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-68278"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-68448"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-80536"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-80590"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-80887"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-89791"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-89811"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-93817"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-97493"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2376106"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2502486"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2502589"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2507038"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2507098"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2511413"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2513148"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2513245"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2513287"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2513430"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2514462"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2524501"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2525413"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2528788"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2535070"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2535309"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2540391"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2540475"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/10/ALSA-2026-88477.html"
    }
  ],
  "related": [
    "CVE-2025-38147",
    "CVE-2026-64114",
    "CVE-2026-64048",
    "CVE-2026-64481",
    "CVE-2026-64266",
    "CVE-2026-64572",
    "CVE-2026-68236",
    "CVE-2026-68202",
    "CVE-2026-68278",
    "CVE-2026-68245",
    "CVE-2026-68448",
    "CVE-2026-80536",
    "CVE-2026-80590",
    "CVE-2026-80887",
    "CVE-2026-89791",
    "CVE-2026-89811",
    "CVE-2026-93817",
    "CVE-2026-97493"
  ],
  "summary": "Important: kernel security, bug fix, and enhancement update"
}

CVE-2025-38147 (GCVE-0-2025-38147)

Vulnerability from cvelistv5 – Published: 2025-07-03 08:35 – Updated: 2026-05-11 21:22

Title

calipso: Don't call calipso functions for AF_INET sk.

Summary

In the Linux kernel, the following vulnerability has been resolved: calipso: Don't call calipso functions for AF_INET sk. syzkaller reported a null-ptr-deref in txopt_get(). [0] The offset 0x70 was of struct ipv6_txoptions in struct ipv6_pinfo, so struct ipv6_pinfo was NULL there. However, this never happens for IPv6 sockets as inet_sk(sk)->pinet6 is always set in inet6_create(), meaning the socket was not IPv6 one. The root cause is missing validation in netlbl_conn_setattr(). netlbl_conn_setattr() switches branches based on struct sockaddr.sa_family, which is passed from userspace. However, netlbl_conn_setattr() does not check if the address family matches the socket. The syzkaller must have called connect() for an IPv6 address on an IPv4 socket. We have a proper validation in tcp_v[46]_connect(), but security_socket_connect() is called in the earlier stage. Let's copy the validation to netlbl_conn_setattr(). [0]: Oops: general protection fault, probably for non-canonical address 0xdffffc000000000e: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077] CPU: 2 UID: 0 PID: 12928 Comm: syz.9.1677 Not tainted 6.12.0 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 RIP: 0010:txopt_get include/net/ipv6.h:390 [inline] RIP: 0010: Code: 02 00 00 49 8b ac 24 f8 02 00 00 e8 84 69 2a fd e8 ff 00 16 fd 48 8d 7d 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 53 02 00 00 48 8b 6d 70 48 85 ed 0f 84 ab 01 00 RSP: 0018:ffff88811b8afc48 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: 1ffff11023715f8a RCX: ffffffff841ab00c RDX: 000000000000000e RSI: ffffc90007d9e000 RDI: 0000000000000070 RBP: 0000000000000000 R08: ffffed1023715f9d R09: ffffed1023715f9e R10: ffffed1023715f9d R11: 0000000000000003 R12: ffff888123075f00 R13: ffff88810245bd80 R14: ffff888113646780 R15: ffff888100578a80 FS: 00007f9019bd7640(0000) GS:ffff8882d2d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f901b927bac CR3: 0000000104788003 CR4: 0000000000770ef0 PKRU: 80000000 Call Trace: <TASK> calipso_sock_setattr+0x56/0x80 net/netlabel/netlabel_calipso.c:557 netlbl_conn_setattr+0x10c/0x280 net/netlabel/netlabel_kapi.c:1177 selinux_netlbl_socket_connect_helper+0xd3/0x1b0 security/selinux/netlabel.c:569 selinux_netlbl_socket_connect_locked security/selinux/netlabel.c:597 [inline] selinux_netlbl_socket_connect+0xb6/0x100 security/selinux/netlabel.c:615 selinux_socket_connect+0x5f/0x80 security/selinux/hooks.c:4931 security_socket_connect+0x50/0xa0 security/security.c:4598 __sys_connect_file+0xa4/0x190 net/socket.c:2067 __sys_connect+0x12c/0x170 net/socket.c:2088 __do_sys_connect net/socket.c:2098 [inline] __se_sys_connect net/socket.c:2095 [inline] __x64_sys_connect+0x73/0xb0 net/socket.c:2095 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xaa/0x1b0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f901b61a12d Code: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9019bd6fa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007f901b925fa0 RCX: 00007f901b61a12d RDX: 000000000000001c RSI: 0000200000000140 RDI: 0000000000000003 RBP: 00007f901b701505 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f901b5b62a0 R15: 00007f9019bb7000 </TASK> Modules linked in:

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7061 records in the last 180 days details

References

10 references

URL	Tags
https://git.kernel.org/stable/c/fc2da88411470480b…
https://git.kernel.org/stable/c/0c813dbc851dbf418…
https://git.kernel.org/stable/c/26ce90f1ce60b0ff5…
https://git.kernel.org/stable/c/c32ebe33626335a53…
https://git.kernel.org/stable/c/946bfdfcb76ac2bac…
https://git.kernel.org/stable/c/dd8928897594931d6…
https://git.kernel.org/stable/c/e2ec310c7a5027184…
https://git.kernel.org/stable/c/6e9f2df1c550ead7c…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: ceba1832b1b2da0149c51de62a847c00bca1677a , < fc2da88411470480b8b7e9177e930cedd893cf56 (git) Affected: ceba1832b1b2da0149c51de62a847c00bca1677a , < 0c813dbc851dbf418fdc6dc883fd0592d6c555cd (git) Affected: ceba1832b1b2da0149c51de62a847c00bca1677a , < 26ce90f1ce60b0ff587de8d6aec399aa55cab28e (git) Affected: ceba1832b1b2da0149c51de62a847c00bca1677a , < c32ebe33626335a536dbbdd09571c06dd9bc1729 (git) Affected: ceba1832b1b2da0149c51de62a847c00bca1677a , < 946bfdfcb76ac2bac5b8526447035885ff41c598 (git) Affected: ceba1832b1b2da0149c51de62a847c00bca1677a , < dd8928897594931d6912ef2f7a43e110b4958d3d (git) Affected: ceba1832b1b2da0149c51de62a847c00bca1677a , < e2ec310c7a50271843c585e27ef14e48c66ce649 (git) Affected: ceba1832b1b2da0149c51de62a847c00bca1677a , < 6e9f2df1c550ead7cecb3e450af1105735020c92 (git)
Linux	Linux	Affected: 4.8 Unaffected: 0 , < 4.8 (semver) Unaffected: 5.4.295 , ≤ 5.4.* (semver) Unaffected: 5.10.239 , ≤ 5.10.* (semver) Unaffected: 5.15.186 , ≤ 5.15.* (semver) Unaffected: 6.1.142 , ≤ 6.1.* (semver) Unaffected: 6.6.94 , ≤ 6.6.* (semver) Unaffected: 6.12.34 , ≤ 6.12.* (semver) Unaffected: 6.15.3 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix)

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            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncalipso: Don\u0027t call calipso functions for AF_INET sk.\n\nsyzkaller reported a null-ptr-deref in txopt_get(). [0]\n\nThe offset 0x70 was of struct ipv6_txoptions in struct ipv6_pinfo,\nso struct ipv6_pinfo was NULL there.\n\nHowever, this never happens for IPv6 sockets as inet_sk(sk)-\u003epinet6\nis always set in inet6_create(), meaning the socket was not IPv6 one.\n\nThe root cause is missing validation in netlbl_conn_setattr().\n\nnetlbl_conn_setattr() switches branches based on struct\nsockaddr.sa_family, which is passed from userspace.  However,\nnetlbl_conn_setattr() does not check if the address family matches\nthe socket.\n\nThe syzkaller must have called connect() for an IPv6 address on\nan IPv4 socket.\n\nWe have a proper validation in tcp_v[46]_connect(), but\nsecurity_socket_connect() is called in the earlier stage.\n\nLet\u0027s copy the validation to netlbl_conn_setattr().\n\n[0]:\nOops: general protection fault, probably for non-canonical address 0xdffffc000000000e: 0000 [#1] PREEMPT SMP KASAN NOPTI\nKASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077]\nCPU: 2 UID: 0 PID: 12928 Comm: syz.9.1677 Not tainted 6.12.0 #1\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\nRIP: 0010:txopt_get include/net/ipv6.h:390 [inline]\nRIP: 0010:\nCode: 02 00 00 49 8b ac 24 f8 02 00 00 e8 84 69 2a fd e8 ff 00 16 fd 48 8d 7d 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 \u003c80\u003e 3c 02 00 0f 85 53 02 00 00 48 8b 6d 70 48 85 ed 0f 84 ab 01 00\nRSP: 0018:ffff88811b8afc48 EFLAGS: 00010212\nRAX: dffffc0000000000 RBX: 1ffff11023715f8a RCX: ffffffff841ab00c\nRDX: 000000000000000e RSI: ffffc90007d9e000 RDI: 0000000000000070\nRBP: 0000000000000000 R08: ffffed1023715f9d R09: ffffed1023715f9e\nR10: ffffed1023715f9d R11: 0000000000000003 R12: ffff888123075f00\nR13: ffff88810245bd80 R14: ffff888113646780 R15: ffff888100578a80\nFS:  00007f9019bd7640(0000) GS:ffff8882d2d00000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f901b927bac CR3: 0000000104788003 CR4: 0000000000770ef0\nPKRU: 80000000\nCall Trace:\n \u003cTASK\u003e\n calipso_sock_setattr+0x56/0x80 net/netlabel/netlabel_calipso.c:557\n netlbl_conn_setattr+0x10c/0x280 net/netlabel/netlabel_kapi.c:1177\n selinux_netlbl_socket_connect_helper+0xd3/0x1b0 security/selinux/netlabel.c:569\n selinux_netlbl_socket_connect_locked security/selinux/netlabel.c:597 [inline]\n selinux_netlbl_socket_connect+0xb6/0x100 security/selinux/netlabel.c:615\n selinux_socket_connect+0x5f/0x80 security/selinux/hooks.c:4931\n security_socket_connect+0x50/0xa0 security/security.c:4598\n __sys_connect_file+0xa4/0x190 net/socket.c:2067\n __sys_connect+0x12c/0x170 net/socket.c:2088\n __do_sys_connect net/socket.c:2098 [inline]\n __se_sys_connect net/socket.c:2095 [inline]\n __x64_sys_connect+0x73/0xb0 net/socket.c:2095\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xaa/0x1b0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f901b61a12d\nCode: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f9019bd6fa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a\nRAX: ffffffffffffffda RBX: 00007f901b925fa0 RCX: 00007f901b61a12d\nRDX: 000000000000001c RSI: 0000200000000140 RDI: 0000000000000003\nRBP: 00007f901b701505 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 0000000000000000 R14: 00007f901b5b62a0 R15: 00007f9019bb7000\n \u003c/TASK\u003e\nModules linked in:"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:22:10.226Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fc2da88411470480b8b7e9177e930cedd893cf56"
        },
        {
          "url": "https://git.kernel.org/stable/c/0c813dbc851dbf418fdc6dc883fd0592d6c555cd"
        },
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          "url": "https://git.kernel.org/stable/c/26ce90f1ce60b0ff587de8d6aec399aa55cab28e"
        },
        {
          "url": "https://git.kernel.org/stable/c/c32ebe33626335a536dbbdd09571c06dd9bc1729"
        },
        {
          "url": "https://git.kernel.org/stable/c/946bfdfcb76ac2bac5b8526447035885ff41c598"
        },
        {
          "url": "https://git.kernel.org/stable/c/dd8928897594931d6912ef2f7a43e110b4958d3d"
        },
        {
          "url": "https://git.kernel.org/stable/c/e2ec310c7a50271843c585e27ef14e48c66ce649"
        },
        {
          "url": "https://git.kernel.org/stable/c/6e9f2df1c550ead7cecb3e450af1105735020c92"
        }
      ],
      "title": "calipso: Don\u0027t call calipso functions for AF_INET sk.",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38147",
    "datePublished": "2025-07-03T08:35:52.921Z",
    "dateReserved": "2025-04-16T04:51:23.988Z",
    "dateUpdated": "2026-05-11T21:22:10.226Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-64048 (GCVE-0-2026-64048)

Vulnerability from cvelistv5 – Published: 2026-07-19 15:39 – Updated: 2026-10-19 20:28

Title

net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot

Summary

In the Linux kernel, the following vulnerability has been resolved: net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot On the SMC-D client, slot 0 of ini->ism_dev[]/ini->ism_chid[] is reserved for an SMC-Dv1 device. smc_find_ism_v2_device_clnt() populates V2 entries starting at index 1, so when no V1 device is selected slot 0 is left in its kzalloc()'ed state with ism_dev[0] == NULL and ism_chid[0] == 0. smc_v2_determine_accepted_chid() then matches the peer's CHID against the array starting from index 0 using the CHID alone. A malicious peer replying to a SMC-Dv2-only proposal with d1.chid == 0 matches the empty slot, ini->ism_selected becomes 0, and the subsequent ism_dev[0]->lgr_lock dereference in smc_conn_create() faults at offsetof(struct smcd_dev, lgr_lock) == 0x68: BUG: KASAN: null-ptr-deref in _raw_spin_lock_bh+0x79/0xe0 Write of size 4 at addr 0000000000000068 by task exploit/144 Call Trace: _raw_spin_lock_bh smc_conn_create (net/smc/smc_core.c:1997) __smc_connect (net/smc/af_smc.c:1447) smc_connect (net/smc/af_smc.c:1720) __sys_connect __x64_sys_connect do_syscall_64 Require ism_dev[i] to be non-NULL before accepting a CHID match.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 15:35 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7061 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/903f7688ffeb9b323…
https://git.kernel.org/stable/c/dd2f9dd83c68abd7b…
https://git.kernel.org/stable/c/6927cacf2b10d4fa8…
https://git.kernel.org/stable/c/d38ba387244e5c5f7…
https://git.kernel.org/stable/c/53eb7bd09aace72fa…
https://git.kernel.org/stable/c/afa9036b8c9963947…
https://git.kernel.org/stable/c/65edb3b0822cfe504…
https://git.kernel.org/stable/c/277740023def559a4…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a7c9c5f4af7f6098da68705fc5d86565d0728ef7 , < 903f7688ffeb9b323d70652c01f554bd4ba2a3d6 (git) Affected: a7c9c5f4af7f6098da68705fc5d86565d0728ef7 , < dd2f9dd83c68abd7ba7ded7075290b016cb7ecd0 (git) Affected: a7c9c5f4af7f6098da68705fc5d86565d0728ef7 , < 6927cacf2b10d4fa80c1a2d407512ef9397c59c6 (git) Affected: a7c9c5f4af7f6098da68705fc5d86565d0728ef7 , < d38ba387244e5c5f7db3e11ea98bc2c7beccb0c0 (git) Affected: a7c9c5f4af7f6098da68705fc5d86565d0728ef7 , < 53eb7bd09aace72fa17510d80e0caf5ca058c231 (git) Affected: a7c9c5f4af7f6098da68705fc5d86565d0728ef7 , < afa9036b8c9963947b487c36e332df6a42c96fcb (git) Affected: a7c9c5f4af7f6098da68705fc5d86565d0728ef7 , < 65edb3b0822cfe5041be8fbabebd57e2e5ad9f4e (git) Affected: a7c9c5f4af7f6098da68705fc5d86565d0728ef7 , < 277740023def559a4a2ddc3e8e784ee37a0f16a9 (git)
Linux	Linux	Affected: 5.10 Unaffected: 0 , < 5.10 (semver) Unaffected: 5.10.266 , ≤ 5.10.* (semver) Unaffected: 5.15.217 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.142 , ≤ 6.6.* (semver) Unaffected: 6.12.92 , ≤ 6.12.* (semver) Unaffected: 6.18.34 , ≤ 6.18.* (semver) Unaffected: 7.0.11 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-64048",
                "options": [
                  {
                    "Exploitation": "none"
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                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-16T15:35:56.958231Z",
                "version": "2.0.3"
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            "descriptions": [
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                "description": "CWE-476 NULL Pointer Dereference",
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                "type": "CWE"
              }
            ]
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-19T20:28:10.855Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
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            {
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          "vendor": "Linux",
          "versions": [
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              "version": "5.10"
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              "version": "0",
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              "status": "unaffected",
              "version": "5.10.266",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.217",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.142",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.92",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.34",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.266",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.217",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.175",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.142",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.92",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.34",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot\n\nOn the SMC-D client, slot 0 of ini-\u003eism_dev[]/ini-\u003eism_chid[] is\nreserved for an SMC-Dv1 device. smc_find_ism_v2_device_clnt()\npopulates V2 entries starting at index 1, so when no V1 device is\nselected slot 0 is left in its kzalloc()\u0027ed state with ism_dev[0] ==\nNULL and ism_chid[0] == 0.\n\nsmc_v2_determine_accepted_chid() then matches the peer\u0027s CHID against\nthe array starting from index 0 using the CHID alone. A malicious\npeer replying to a SMC-Dv2-only proposal with d1.chid == 0 matches\nthe empty slot, ini-\u003eism_selected becomes 0, and the subsequent\nism_dev[0]-\u003elgr_lock dereference in smc_conn_create() faults at\noffsetof(struct smcd_dev, lgr_lock) == 0x68:\n\n  BUG: KASAN: null-ptr-deref in _raw_spin_lock_bh+0x79/0xe0\n  Write of size 4 at addr 0000000000000068 by task exploit/144\n  Call Trace:\n   _raw_spin_lock_bh\n   smc_conn_create (net/smc/smc_core.c:1997)\n   __smc_connect (net/smc/af_smc.c:1447)\n   smc_connect (net/smc/af_smc.c:1720)\n   __sys_connect\n   __x64_sys_connect\n   do_syscall_64\n\nRequire ism_dev[i] to be non-NULL before accepting a CHID match."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The fault is triggered while processing a malicious CLC ACCEPT message received from a remote TCP peer during the SMC-D handshake; the attacker controls the server response over the network.\nAC:L - Once a victim with SMC-Dv2 hardware initiates an SMC connection, a malicious peer can reliably send `d1.chid == 0` in the CLC ACCEPT to match the empty reserved slot 0 without races or special timing.\nPR:N - No local privileges are required on the victim host; an unauthenticated remote attacker operating a malicious SMC server can crash connecting clients, and unprivileged users can create SMC sockets without capability checks.\nUI:N - Exploitation requires only that a victim application initiate a normal outbound SMC connection to the attacker\u0027s server, which occurs automatically in enterprise middleware without per-connection user action.\nS:U - The vulnerability causes a kernel crash on the victim host but does not cross a security boundary such as VM escape or sandbox breakout.\nC:N - The bug is a null pointer dereference when taking `ism_dev[0]-\u003elgr_lock`; it causes an immediate kernel fault with no information disclosure.\nI:N - The attempted write at address 0x68 is a spinlock operation on a NULL `smcd_dev` pointer, not a controlled or arbitrary memory modification primitive.\nA:H - A successful trigger causes a kernel null pointer dereference (KASAN-reported oops/panic), crashing the affected system or at minimum the connecting process\u0027s kernel context."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-23T12:45:32.597Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/903f7688ffeb9b323d70652c01f554bd4ba2a3d6"
        },
        {
          "url": "https://git.kernel.org/stable/c/dd2f9dd83c68abd7ba7ded7075290b016cb7ecd0"
        },
        {
          "url": "https://git.kernel.org/stable/c/6927cacf2b10d4fa80c1a2d407512ef9397c59c6"
        },
        {
          "url": "https://git.kernel.org/stable/c/d38ba387244e5c5f7db3e11ea98bc2c7beccb0c0"
        },
        {
          "url": "https://git.kernel.org/stable/c/53eb7bd09aace72fa17510d80e0caf5ca058c231"
        },
        {
          "url": "https://git.kernel.org/stable/c/afa9036b8c9963947b487c36e332df6a42c96fcb"
        },
        {
          "url": "https://git.kernel.org/stable/c/65edb3b0822cfe5041be8fbabebd57e2e5ad9f4e"
        },
        {
          "url": "https://git.kernel.org/stable/c/277740023def559a4a2ddc3e8e784ee37a0f16a9"
        }
      ],
      "title": "net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64048",
    "datePublished": "2026-07-19T15:39:32.664Z",
    "dateReserved": "2026-07-19T07:54:57.029Z",
    "dateUpdated": "2026-10-19T20:28:10.855Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-64114 (GCVE-0-2026-64114)

Vulnerability from cvelistv5 – Published: 2026-07-19 15:40 – Updated: 2026-10-19 20:28

Title

ipv4: raw: reject IP_HDRINCL packets with ihl < 5

Summary

In the Linux kernel, the following vulnerability has been resolved: ipv4: raw: reject IP_HDRINCL packets with ihl < 5 raw_send_hdrinc() validates that the caller-supplied IPv4 header fits within the message length: iphlen = iph->ihl * 4; err = -EINVAL; if (iphlen > length) goto error_free; if (iphlen >= sizeof(*iph)) { /* fix up saddr, tot_len, id, csum, transport_header */ } It does not, however, reject ihl < 5. For such a packet the "if (iphlen >= sizeof(*iph))" branch is skipped, leaving the crafted iphdr untouched, but the packet is still handed to __ip_local_out() and onward. Downstream consumers that read iph->ihl assume a sane value: net/ipv4/ah4.c:ah_output() in particular subtracts sizeof(struct iphdr) from top_iph->ihl * 4 and passes the (signed-int-negative, then cast to size_t) result to memcpy(), producing an OOB access of length close to SIZE_MAX and a host kernel panic. An IPv4 header with ihl < 5 is malformed by definition (RFC 791: "Internet Header Length is the length of the internet header in 32 bit words ... Note that the minimum value for a correct header is 5."). The kernel should not be willing to inject such a packet into its own output path. Reject "iphlen < sizeof(*iph)" alongside the existing "iphlen > length" check. This matches the principle that locally constructed packets that re-enter the IP stack must pass the same basic sanity tests that a foreign packet would be subjected to. Once this lands, the "if (iphlen >= sizeof(*iph))" wrapper around the fixup branch becomes redundant; left in place to keep the patch minimal and backport-friendly. A follow-up can unwrap it. Note that commit 86f4c90a1c5c ("ipv4, ipv6: ensure raw socket message is big enough to hold an IP header") ensures the message buffer is large enough to hold an iphdr, but does not constrain the self-reported iph->ihl. Reachability: the malformed packet source is any caller with CAP_NET_RAW, including an unprivileged process in a user+net namespace on a kernel with CONFIG_USER_NS=y. The reproduced AH crash also requires a matching xfrm AH policy on the outgoing route; a container granted CAP_NET_ADMIN can install that state and policy in its netns. Loopback bypasses xfrm_output, so the trigger uses a real netdev. Reproduced on UML + KASAN: kernel-mode fault at addr 0x0 with memcpy_orig at the crash site. Same shape reproduces inside a rootless Docker container with --cap-add NET_ADMIN on a stock distro kernel.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 15:36 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7061 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/1065b9efa4126df55…
https://git.kernel.org/stable/c/bc20dbd48c26e743f…
https://git.kernel.org/stable/c/5a564f737ec54d63e…
https://git.kernel.org/stable/c/3c5411fa4944ed99a…
https://git.kernel.org/stable/c/145e9afa5b905229b…
https://git.kernel.org/stable/c/7725cd3b471740fd2…
https://git.kernel.org/stable/c/bbe0be67de296176e…
https://git.kernel.org/stable/c/915fab69823a14c17…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1065b9efa4126df559b03a849c139ecfae92cd25 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < bc20dbd48c26e743f7e0845020c11ed2ce8b15ee (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 5a564f737ec54d63e8ee221d3ff396d07586d464 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 3c5411fa4944ed99af3d9d1de750ea8169b6dac9 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 145e9afa5b905229b4788bb72c3255f5a5f77508 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7725cd3b471740fd23d25ed1da722c671fb2a5d3 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < bbe0be67de296176e7243c76e3d9f02f6ae9ff0b (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 915fab69823a14c170dbaa3b41978768e0fe62fc (git)
Linux	Linux	Affected: 2.6.12 Unaffected: 0 , < 2.6.12 (semver) Unaffected: 5.10.258 , ≤ 5.10.* (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.142 , ≤ 6.6.* (semver) Unaffected: 6.12.92 , ≤ 6.12.* (semver) Unaffected: 6.18.34 , ≤ 6.18.* (semver) Unaffected: 7.0.11 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-64114",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-16T15:36:31.414892Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-20",
                "description": "CWE-20 Improper Input Validation",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
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        "providerMetadata": {
          "dateUpdated": "2026-10-19T20:28:12.671Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/ipv4/raw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "versionType": "git"
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CVE-2026-64266 (GCVE-0-2026-64266)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:49 – Updated: 2026-10-19 20:28

Title

fuse: re-lock request before returning from fuse_ref_folio()

Summary

In the Linux kernel, the following vulnerability has been resolved: fuse: re-lock request before returning from fuse_ref_folio() fuse_ref_folio() unlocks the request but does not re-lock it before returning. fuse_chan_abort() can end the request and the async end callback (eg fuse_writepage_free()) can free the args while the subsequent copy chain logic after fuse_ref_folio() accesses them, leading to use-after-free issues. Fix this by locking the request in fuse_ref_folio() before returning.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 15:38 UTC

CWE

CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7061 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/1f9156714592356b4…
https://git.kernel.org/stable/c/5630da218a45ba80f…
https://git.kernel.org/stable/c/1ca605cfa59377f01…
https://git.kernel.org/stable/c/0e4a5a000123d8123…
https://git.kernel.org/stable/c/e6aa539720c3d8def…
https://git.kernel.org/stable/c/be353caffa8640f5e…
https://git.kernel.org/stable/c/65a1c2551f7e16085…
https://git.kernel.org/stable/c/b5befa80fdbe287a9…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: c3021629a0d820247ee12b6c5192a1d5380e21c6 , < 1f9156714592356b4fda57beac7eab9c2a462dd3 (git) Affected: c3021629a0d820247ee12b6c5192a1d5380e21c6 , < 5630da218a45ba80f0aba0846cbe8aa655da122b (git) Affected: c3021629a0d820247ee12b6c5192a1d5380e21c6 , < 1ca605cfa59377f0143fb35b5b01360f37d1b7c4 (git) Affected: c3021629a0d820247ee12b6c5192a1d5380e21c6 , < 0e4a5a000123d81234e27a2f8187688cf608f755 (git) Affected: c3021629a0d820247ee12b6c5192a1d5380e21c6 , < e6aa539720c3d8def69683ed0c07cf9faea4e8be (git) Affected: c3021629a0d820247ee12b6c5192a1d5380e21c6 , < be353caffa8640f5e25fb3714ce8b0cef5e410e5 (git) Affected: c3021629a0d820247ee12b6c5192a1d5380e21c6 , < 65a1c2551f7e16085acbb54aedde1feaa559ba7a (git) Affected: c3021629a0d820247ee12b6c5192a1d5380e21c6 , < b5befa80fdbe287a98480effed9564712924add5 (git)
Linux	Linux	Affected: 2.6.35 Unaffected: 0 , < 2.6.35 (semver) Unaffected: 5.10.261 , ≤ 5.10.* (semver) Unaffected: 5.15.212 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.96 , ≤ 6.12.* (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

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CVE-2026-64481 (GCVE-0-2026-64481)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:51 – Updated: 2026-10-21 12:43

Title

ALSA: hda/cs35l41: Fix firmware load work teardown

Summary

In the Linux kernel, the following vulnerability has been resolved: ALSA: hda/cs35l41: Fix firmware load work teardown cs35l41_hda creates ALSA controls whose private data points at the cs35l41_hda object. The firmware load control can also queue fw_load_work. Those controls are not removed on component unbind, and device remove only cancels fw_load_work through cs35l41_remove_dsp(). That helper is skipped when halo_initialized is false. With firmware_autostart disabled, a firmware load can be requested before the DSP has been initialized. If the component or device is removed before the queued work runs, the worker can run after teardown and dereference driver state that is no longer valid. Track the created controls and remove them on unbind so no new control callback can reach the driver data or queue more work. Then cancel fw_load_work to drain any request that was already queued. Also cancel the work unconditionally during device remove before runtime PM teardown.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 15:41 UTC

CWE

CWE-416 - Use After Free

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7061 records in the last 180 days details

References

5 references

URL	Tags
https://git.kernel.org/stable/c/3e339c88b8c304491…
https://git.kernel.org/stable/c/8947215c0136c9d90…
https://git.kernel.org/stable/c/ce0a903d0591e3e2c…
https://git.kernel.org/stable/c/d6a40a4d083ef74d0…
https://git.kernel.org/stable/c/b65020d5398f499c0…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 , < 3e339c88b8c3044919fd1936a8b23124285d0de6 (git) Affected: 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 , < 8947215c0136c9d905e4a46d824824f8b48a2e5b (git) Affected: 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 , < ce0a903d0591e3e2c790c5b628802b08d1b287cc (git) Affected: 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 , < d6a40a4d083ef74d00c8f9516cb5ff07ac70720b (git) Affected: 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 , < b65020d5398f499c09498c9786dba6d67ae57664 (git)
Linux	Linux	Affected: 6.0 Unaffected: 0 , < 6.0 (semver) Unaffected: 6.6.160 , ≤ 6.6.* (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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CVE-2026-64572 (GCVE-0-2026-64572)

Vulnerability from cvelistv5 – Published: 2026-08-05 08:08 – Updated: 2026-08-19 16:28

Title

ipv4: fib: free fib_alias with kfree_rcu() on insert error path

Summary

In the Linux kernel, the following vulnerability has been resolved: ipv4: fib: free fib_alias with kfree_rcu() on insert error path fib_table_insert() publishes new_fa into the leaf's fa_list with fib_insert_alias() before calling the fib entry notifiers. When a notifier fails, the error path removes new_fa with fib_remove_alias() (hlist_del_rcu) and frees it right away with kmem_cache_free(). fib_table_lookup() walks that list under rcu_read_lock() only, so a concurrent lookup that already reached new_fa keeps reading it after the free: BUG: KASAN: slab-use-after-free in fib_table_lookup (net/ipv4/fib_trie.c:1601) Read of size 1 at addr ffff88810676d4eb by task exploit/297 Call Trace: fib_table_lookup (net/ipv4/fib_trie.c:1601) ip_route_output_key_hash_rcu (net/ipv4/route.c:2814) ip_route_output_key_hash (net/ipv4/route.c:2705) __ip4_datagram_connect (net/ipv4/datagram.c:49) udp_connect (net/ipv4/udp.c:2144) __sys_connect (net/socket.c:2167) __x64_sys_connect (net/socket.c:2173) do_syscall_64 entry_SYSCALL_64_after_hwframe which belongs to the cache ip_fib_alias of size 56 Triggering the error path needs CAP_NET_ADMIN and a registered fib notifier that can reject a route; a netdevsim device whose IPv4 FIB resource is exhausted is enough. Free new_fa with alias_free_mem_rcu(), as fib_table_delete() already does for a fib_alias removed from the trie.

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7061 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/9d0778571def598c3…
https://git.kernel.org/stable/c/bb03350f974aec352…
https://git.kernel.org/stable/c/6429c9cfd941e62ac…
https://git.kernel.org/stable/c/8150b5365f026e722…
https://git.kernel.org/stable/c/d007056868723de9c…
https://git.kernel.org/stable/c/cb8be318b4432abd8…
https://git.kernel.org/stable/c/b8d2ea75c76abcd0d…
https://git.kernel.org/stable/c/f2f152e94a67bc746…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a6c76c17df021b141b0d306828c9fe4ba2d2717c , < 9d0778571def598c31e84a38ae5a7ebc6f65e6d8 (git) Affected: a6c76c17df021b141b0d306828c9fe4ba2d2717c , < bb03350f974aec352b660d032a1d283eb462165a (git) Affected: a6c76c17df021b141b0d306828c9fe4ba2d2717c , < 6429c9cfd941e62acd7bb0bc64d631574d4c3b2a (git) Affected: a6c76c17df021b141b0d306828c9fe4ba2d2717c , < 8150b5365f026e72250cacc527ea00be30f40105 (git) Affected: a6c76c17df021b141b0d306828c9fe4ba2d2717c , < d007056868723de9c0cc3f5ffaad47a8d468b9a4 (git) Affected: a6c76c17df021b141b0d306828c9fe4ba2d2717c , < cb8be318b4432abd88d3172ec157330f27a5f7a7 (git) Affected: a6c76c17df021b141b0d306828c9fe4ba2d2717c , < b8d2ea75c76abcd0d72679c2f488271f573e32fb (git) Affected: a6c76c17df021b141b0d306828c9fe4ba2d2717c , < f2f152e94a67bc746afaf05a1b2702c195553112 (git)
Linux	Linux	Affected: 5.6 Unaffected: 0 , < 5.6 (semver) Unaffected: 5.10.265 , ≤ 5.10.* (semver) Unaffected: 5.15.216 , ≤ 5.15.* (semver) Unaffected: 6.1.183 , ≤ 6.1.* (semver) Unaffected: 6.6.148 , ≤ 6.6.* (semver) Unaffected: 6.12.101 , ≤ 6.12.* (semver) Unaffected: 6.18.42 , ≤ 6.18.* (semver) Unaffected: 7.1.6 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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CVE-2026-68202 (GCVE-0-2026-68202)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:00 – Updated: 2026-10-19 20:58

Title

ALSA: seq: close a re-opened queue timer in the destructor

Summary

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: close a re-opened queue timer in the destructor queue_delete() closes the queue timer, then frees it. snd_seq_timer_close() clears q->timer->timeri. snd_use_lock_sync() then drains borrowers, and snd_seq_timer_delete() frees q->timer. A borrower can re-open the timer inside that window. A SET_QUEUE_CLIENT that took a queueptr() use_lock reference before the queue was unlinked runs snd_seq_timer_open() after the close. Open refuses re-open only while timeri is set, and the close just cleared it, so it re-opens timeri. snd_seq_timer_delete() does not close that instance. Its snd_seq_timer_stop() is a no-op, because running was cleared first. So it frees q->timer with the instance still live. The queue is freed next. The instance stays on the global timer with callback_data pointing at the freed queue. A non-owner START on the unlocked queue arms it. The next tick derefs the freed queue in snd_seq_timer_interrupt(). Reachable by an unprivileged user with access to /dev/snd/seq. No CAP and no queue ownership required. Close any lingering instance in the destructor. There, ->timeri can no longer change: the queue is unlinked and all use_lock borrowers have drained, so no snd_seq_queue_use() can re-open it. Close it before clearing q->timer. snd_timer_close() waits for any in-flight snd_seq_timer_interrupt() to finish, and that callback still reads q->timer (via snd_seq_check_queue()), so q->timer must stay valid until it drains.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 15:45 UTC

CWE

CWE-416 - Use After Free

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7061 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/b7feeaca1f53b10df…
https://git.kernel.org/stable/c/7478ef94b49bc9789…
https://git.kernel.org/stable/c/9d9be6fc30f384f92…
https://git.kernel.org/stable/c/fb40d03ed792a8a8b…
https://git.kernel.org/stable/c/24f0cabf173539f04…
https://git.kernel.org/stable/c/6a10025c7fd09a7d2…
https://git.kernel.org/stable/c/31a6163e301d83206…
https://git.kernel.org/stable/c/2c4dc0ed50b05cd84…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b7feeaca1f53b10df9b4de9eaf611767ca70dc92 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7478ef94b49bc9789cf1a003deec58b42283dde4 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 9d9be6fc30f384f92c4e1b8ed40bd9d4796b7833 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < fb40d03ed792a8a8bf77aa0ee15df57b0ff78b07 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 24f0cabf173539f048946c8fc221131dc221f277 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6a10025c7fd09a7d2af37a3ae1da188569fce470 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 31a6163e301d832060f8236f1ed17cbc1ca198df (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2c4dc0ed50b05cd847a4b34b8cebf0775f19aeb9 (git)
Linux	Linux	Affected: 2.6.12 Unaffected: 0 , < 2.6.12 (semver) Unaffected: 5.10.266 , ≤ 5.10.* (semver) Unaffected: 5.15.217 , ≤ 5.15.* (semver) Unaffected: 6.1.183 , ≤ 6.1.* (semver) Unaffected: 6.6.148 , ≤ 6.6.* (semver) Unaffected: 6.12.101 , ≤ 6.12.* (semver) Unaffected: 6.18.42 , ≤ 6.18.* (semver) Unaffected: 7.1.6 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

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CVE-2026-68236 (GCVE-0-2026-68236)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:01 – Updated: 2026-10-19 20:58

Title

drm/amd/display: set new_stream to NULL after release

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: set new_stream to NULL after release In dm_update_crtc_state(), the skip_modeset path releases new_stream via dc_stream_release() but does not set the pointer to NULL. If a later error (e.g., color management failure) triggers the fail label, the error path calls dc_stream_release() again on the same dangling pointer, causing a double release and potential use-after-free. Fix this by setting new_stream to NULL after the initial release. (cherry picked from commit 99f3af19073b3ddbfd96e789124cce12c4277b28)

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 15:46 UTC

CWE

CWE-415 - Double Free

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7061 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/92b7c6e3a1546c6db…
https://git.kernel.org/stable/c/bf9c06c70f496f1ba…
https://git.kernel.org/stable/c/01ba5b36898d6258f…
https://git.kernel.org/stable/c/ba8bf1dcbb44773e7…
https://git.kernel.org/stable/c/5182e442e61397d44…
https://git.kernel.org/stable/c/679f23f0a3606afce…
https://git.kernel.org/stable/c/0676fecbb5242aa22…
https://git.kernel.org/stable/c/9fa26b9eed6195bf8…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 9b690ef3c70422cdcd0cf912db33f2c92ef4a53f , < 92b7c6e3a1546c6db868b07e93fa6fb950d1d3a0 (git) Affected: 9b690ef3c70422cdcd0cf912db33f2c92ef4a53f , < bf9c06c70f496f1ba4474caf95c69696c828340e (git) Affected: 9b690ef3c70422cdcd0cf912db33f2c92ef4a53f , < 01ba5b36898d6258f584269537cc49e7b05cf7c6 (git) Affected: 9b690ef3c70422cdcd0cf912db33f2c92ef4a53f , < ba8bf1dcbb44773e7a0fd13b42925c644e0d5e76 (git) Affected: 9b690ef3c70422cdcd0cf912db33f2c92ef4a53f , < 5182e442e61397d446c36995b8f5676942d35b82 (git) Affected: 9b690ef3c70422cdcd0cf912db33f2c92ef4a53f , < 679f23f0a3606afcef1ffabd72222f00a54ad9e3 (git) Affected: 9b690ef3c70422cdcd0cf912db33f2c92ef4a53f , < 0676fecbb5242aa22c057e78326d6d6041db034c (git) Affected: 9b690ef3c70422cdcd0cf912db33f2c92ef4a53f , < 9fa26b9eed6195bf840f39ac183b9a6237548755 (git)
Linux	Linux	Affected: 4.15 Unaffected: 0 , < 4.15 (semver) Unaffected: 5.10.271 , ≤ 5.10.* (semver) Unaffected: 5.15.222 , ≤ 5.15.* (semver) Unaffected: 6.1.189 , ≤ 6.1.* (semver) Unaffected: 6.6.148 , ≤ 6.6.* (semver) Unaffected: 6.12.101 , ≤ 6.12.* (semver) Unaffected: 6.18.42 , ≤ 6.18.* (semver) Unaffected: 7.1.6 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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              "value": "AV:L - The bug is reached through the DRM atomic modeset ioctl (DRM_IOCTL_MODE_ATOMIC) on a local /dev/dri/card* node of an AMD GPU; there is no network or remote input path into dm_update_crtc_state().\nAC:L - A single atomic commit that requests a mode change while attaching a wrong-sized DEGAMMA_LUT blob deterministically drives amdgpu_dm_check_crtc_color_mgmt() to -EINVAL and hits the double dc_stream_release(); no race and no uncontrolled precondition, and TEST_ONLY commits let the attacker repeat it freely to groom the heap.\nPR:L - The atomic ioctl is gated only by DRM master on the card node, which any unprivileged local user on a graphical seat or an unused VT can hold; no CAP_SYS_ADMIN or root is needed.\nUI:N - The attacker performs the whole sequence with its own ioctl calls; no action by another user or administrator is required, and TEST_ONLY commits do not even disturb the display.\nS:U - The corrupted dc_stream_state and the resulting freed-memory reuse stay within the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The extra kref_put() frees the dc_stream_state while the CRTC state and the DC context still reference it; reading through those dangling pointers after the slab is reallocated leaks adjacent kernel object contents and pointers, and the attacker can spray to control what lands there.\nI:H - The reference-count underflow yields a use-after-free/double-free: subsequent kref_put() writes into reallocated slab memory and dc_stream_free() kfree()s an attacker-influenced update_scratch pointer, giving write and arbitrary-free primitives usable for privilege escalation.\nA:H - Even without exploitation the premature free causes dereference of freed stream/sink/link structures during atomic state unwind, producing a kernel oops or panic and killing the display pipeline; it can be triggered repeatedly."
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CVE-2026-68245 (GCVE-0-2026-68245)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:01 – Updated: 2026-10-21 12:43

Title

drm/amdgpu: fix lifetime issue of amdgpu_vm_get_task_info_pasid()

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix lifetime issue of amdgpu_vm_get_task_info_pasid() The vm pointer returned from amdgpu_vm_get_vm_from_pasid() is only valid while the lock is still being held. Once xa_unlock_irqrestore is called and returned, the pointer is no longer under lock and is subject to modification. Since, the caller still dereferences vm->task_info in amdgpu_vm_get_task_info_vm() after the lock is removed, this causes a use after unlock problem. Remove the lifetime issue present in amdgpu_vm_get_task_info_pasid() through removing the amdgpu_vm_get_vm_from_pasid() function from amdgpu_vm.c and making the relevant code inline to hold the lock while it is still in use. (cherry picked from commit 9d01579f3f868b333acc901815972685989092c7)

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 15:46 UTC

CWE

CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7061 records in the last 180 days details

References

4 references

URL	Tags
https://git.kernel.org/stable/c/fe16a7e5336ae8887…
https://git.kernel.org/stable/c/1173190412fb9d12e…
https://git.kernel.org/stable/c/5d5fb9124a2bba96a…
https://git.kernel.org/stable/c/04cc4aa3617b0ed67…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: b8f67b9ddf4f8fe6dd536590712b5912ad78f99c , < fe16a7e5336ae888751984e30c451fbf7cfa5df7 (git) Affected: b8f67b9ddf4f8fe6dd536590712b5912ad78f99c , < 1173190412fb9d12e7efce76734118d9712ff970 (git) Affected: b8f67b9ddf4f8fe6dd536590712b5912ad78f99c , < 5d5fb9124a2bba96a7807086d8fe0f7ce810d546 (git) Affected: b8f67b9ddf4f8fe6dd536590712b5912ad78f99c , < 04cc4aa3617b0ed67e859f91f09de5d896a46f3a (git) Affected: 251840f22eff35c25de531a3fcb523df94c128c0 (git) Affected: 6.6.160 , < 6.7 (semver)
Linux	Linux	Affected: 6.9 Unaffected: 0 , < 6.9 (semver) Unaffected: 6.12.101 , ≤ 6.12.* (semver) Unaffected: 6.18.42 , ≤ 6.18.* (semver) Unaffected: 7.1.6 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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                  "vulnerable": true
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              "negate": false,
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: fix lifetime issue of amdgpu_vm_get_task_info_pasid()\n\nThe vm pointer returned from amdgpu_vm_get_vm_from_pasid() is only\nvalid while the lock is still being held. Once xa_unlock_irqrestore is\ncalled and returned, the pointer is no longer under lock and is subject\nto modification. Since, the caller still dereferences vm-\u003etask_info in\namdgpu_vm_get_task_info_vm() after the lock is removed, this causes a\nuse after unlock problem.\n\nRemove the lifetime issue present in amdgpu_vm_get_task_info_pasid()\nthrough removing the amdgpu_vm_get_vm_from_pasid() function from\namdgpu_vm.c and making the relevant code inline to hold the lock while\nit is still in use.\n\n(cherry picked from commit 9d01579f3f868b333acc901815972685989092c7)"
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
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              "lang": "en",
              "value": "AV:L - The vulnerable code is reached through the amdgpu DRM device (render node) via command submission causing a GPU VM page fault or a ring timeout; this requires local access to /dev/dri/renderD*, with no network exposure.\nAC:L - The attacker controls both sides of the race: it can generate GPU page faults or job timeouts at will while concurrently closing DRM file descriptors to free the amdgpu_vm/fpriv, and can retry the race arbitrarily many times until it wins.\nPR:L - Only an unprivileged local account with access to the AMD GPU render node is needed; render nodes are world/group accessible by default on desktop, Android and container workloads, and no capability is checked on the CS/fault path.\nUI:N - The attacker\u0027s own processes generate the GPU faults and the concurrent VM teardown; no action by any other user is required.\nS:U - The corruption stays within the kernel\u0027s own security authority \u2014 the freed amdgpu_vm/amdgpu_task_info are kernel heap objects, with no crossing of a VM or IOMMU boundary.\nC:H - The stale vm pointer is dereferenced after free, reading vm-\u003etask_info out of reallocated kernel heap memory, and the resulting task_info contents (process name, pid, tgid) are then printed/exported, allowing disclosure of attacker-groomed or unrelated kernel data.\nI:H - kref_get() is performed on memory that may already be freed and reallocated, writing an increment into another object\u0027s fields, and the paired kref_put() can drop a foreign refcount to zero \u2014 a classic use-after-free/refcount-corruption primitive leveraged for arbitrary write and privilege escalation.\nA:H - The use-after-free occurs in a GPU interrupt handler and the reset/timeout path; dereferencing freed memory or corrupting a reused slab object readily oopses or panics the kernel, and it can be retriggered repeatedly."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:43:38.724Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/fe16a7e5336ae888751984e30c451fbf7cfa5df7"
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        {
          "url": "https://git.kernel.org/stable/c/1173190412fb9d12e7efce76734118d9712ff970"
        },
        {
          "url": "https://git.kernel.org/stable/c/5d5fb9124a2bba96a7807086d8fe0f7ce810d546"
        },
        {
          "url": "https://git.kernel.org/stable/c/04cc4aa3617b0ed67e859f91f09de5d896a46f3a"
        }
      ],
      "title": "drm/amdgpu: fix lifetime issue of amdgpu_vm_get_task_info_pasid()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68245",
    "datePublished": "2026-08-10T12:01:11.501Z",
    "dateReserved": "2026-07-30T09:28:09.377Z",
    "dateUpdated": "2026-10-21T12:43:38.724Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-68278 (GCVE-0-2026-68278)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:01 – Updated: 2026-08-23 12:46

Title

drm/dp/mst: fix buffer overflows in sideband chunk accumulation

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/dp/mst: fix buffer overflows in sideband chunk accumulation drm_dp_sideband_append_payload() has three related bugs when processing device-provided sideband reply data: 1. Zero-length curchunk_len underflow: msg_len is a 6-bit field taken directly from the DP sideband header. If a device sends msg_len=0, curchunk_len is set to zero. The condition (curchunk_idx >= curchunk_len) is immediately true, and curchunk_len-1 wraps to 255 (u8 underflow). drm_dp_msg_data_crc4() reads 255 bytes from chunk[48], then memcpy() writes 255 bytes into msg[], both far out of bounds. 2. chunk[48] overflow: curchunk_len can reach 63 (6-bit field). chunk[] is only 48 bytes. Multi-iteration payload assembly appends 16-byte blocks until curchunk_idx reaches curchunk_len, writing up to 15 bytes past the end of chunk[] into msg[]. 3. msg[256] overflow: each chunk contributes (curchunk_len-1) bytes to msg[]. No check ensures curlen + (curchunk_len-1) stays within msg[256], so the memcpy can spill into adjacent struct fields. All three are reachable from any DP MST device that can forge sideband reply messages on a physical connection.

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7061 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/ef2ecb6cf268debf3…
https://git.kernel.org/stable/c/d4e05dedb252ed3e5…
https://git.kernel.org/stable/c/4d5109075a787de28…
https://git.kernel.org/stable/c/53937a2787d29c7a4…
https://git.kernel.org/stable/c/ef0dbcc200c3389f1…
https://git.kernel.org/stable/c/1e5827839ad0ceb00…
https://git.kernel.org/stable/c/a6366b551079c79bf…
https://git.kernel.org/stable/c/55bd5e685bda455b9…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: ad7f8a1f9ced7f049f9b66d588723f243a7034cd , < ef2ecb6cf268debf3890df99fea01b6452dcf78e (git) Affected: ad7f8a1f9ced7f049f9b66d588723f243a7034cd , < d4e05dedb252ed3e540a0c9be511e427f098110a (git) Affected: ad7f8a1f9ced7f049f9b66d588723f243a7034cd , < 4d5109075a787de28c9e89940f9dee45269f91fa (git) Affected: ad7f8a1f9ced7f049f9b66d588723f243a7034cd , < 53937a2787d29c7a460e984dc4f20ff6ac91dc65 (git) Affected: ad7f8a1f9ced7f049f9b66d588723f243a7034cd , < ef0dbcc200c3389f1f781ab181932a97e54b51af (git) Affected: ad7f8a1f9ced7f049f9b66d588723f243a7034cd , < 1e5827839ad0ceb0079d1560c321fa3656b54f21 (git) Affected: ad7f8a1f9ced7f049f9b66d588723f243a7034cd , < a6366b551079c79bf7bdbadd74c97358bcfe2d58 (git) Affected: ad7f8a1f9ced7f049f9b66d588723f243a7034cd , < 55bd5e685bda455b9b50c835f8c8442d52a344a3 (git)
Linux	Linux	Affected: 3.17 Unaffected: 0 , < 3.17 (semver) Unaffected: 5.10.266 , ≤ 5.10.* (semver) Unaffected: 5.15.217 , ≤ 5.15.* (semver) Unaffected: 6.1.183 , ≤ 6.1.* (semver) Unaffected: 6.6.148 , ≤ 6.6.* (semver) Unaffected: 6.12.101 , ≤ 6.12.* (semver) Unaffected: 6.18.42 , ≤ 6.18.* (semver) Unaffected: 7.1.6 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

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{
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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