Vulnerability-Lookup

alsa-2026:27288

Vulnerability from osv_almalinux

Published

2026-06-19 00:00

Modified

2026-06-26 17:56

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: can: isotp: fix tx.buf use-after-free in isotp_sendmsg() (CVE-2026-31474)
kernel: mptcp: fix slab-use-after-free in __inet_lookup_established (CVE-2026-31669)
kernel: rxrpc: Fix RxGK token loading to check bounds (CVE-2026-31641)
kernel: xen/privcmd: fix double free via VMA splitting (CVE-2026-31787)
kernel: Buffer overflow in drivers/xen/sys-hypervisor.c (CVE-2026-31786)
kernel: net: mana: fix use-after-free in add_adev() error path (CVE-2026-43056)
kernel: Bluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync (CVE-2026-31772)
kernel: bnxt_en: Fix RSS context delete logic (CVE-2026-43260)
kernel: crypto: caam - fix overflow on long hmac keys (CVE-2026-43330)
kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)
kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056)
kernel: wifi: mac80211: drop stray 'static' from fast-RX rx_result (CVE-2026-46152)
kernel: wifi: mac80211: remove station if connection prep fails (CVE-2026-46125)
kernel: exit: prevent preemption of oopsing TASK_DEAD task (CVE-2026-46173)
kernel: wifi: mac80211: use safe list iteration in radar detect work (CVE-2026-46166)

Bug Fix(es) and Enhancement(s):

AlmaLinux10.0 - s390/ap: Expose ap_bindings_complete_count counter via sysfs [almalinux-10.2.z] (JIRA:AlmaLinux-166047)
AlmaLinux9.5 crash due to lpfc NULL ndlp->vport [almalinux-10.2.z] (JIRA:AlmaLinux-171774)
objtool static_call check blocks build of out-of-tree livepatch modules on AlmaLinux 10.2 GA kernels ? missing upstream revert f495054bd12e (JIRA:AlmaLinux-178495)
ibmveth Adapter Freeze with Small MSS [almalinux-10.2.z] (JIRA:AlmaLinux-179723)
rbd: eliminate a race in lock_dwork draining on unmap [almalinux-10.2.z] (JIRA:AlmaLinux-183127)
AlmaLinux10.0 - s390/mm: Add missing secure storage access fixups [almalinux-10.2.z] (JIRA:AlmaLinux-183319)
[AlmaLinux10.2.z] Enable Pretimeout Watchdog Panic Functionality on x86 (JIRA:AlmaLinux-182299)

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-2026:27288	ADVISORY
	https://access.redhat.com/security/cve/CVE-2026-31474	REPORT
	https://access.redhat.com/security/cve/CVE-2026-31641	REPORT
	https://access.redhat.com/security/cve/CVE-2026-31669	REPORT
	https://access.redhat.com/security/cve/CVE-2026-31772	REPORT
	https://access.redhat.com/security/cve/CVE-2026-31786	REPORT
	https://access.redhat.com/security/cve/CVE-2026-31787	REPORT
	https://access.redhat.com/security/cve/CVE-2026-43056	REPORT
	https://access.redhat.com/security/cve/CVE-2026-43260	REPORT
	https://access.redhat.com/security/cve/CVE-2026-43330	REPORT
	https://access.redhat.com/security/cve/CVE-2026-46056	REPORT
	https://access.redhat.com/security/cve/CVE-2026-46125	REPORT
	https://access.redhat.com/security/cve/CVE-2026-46152	REPORT
	https://access.redhat.com/security/cve/CVE-2026-46166	REPORT
	https://access.redhat.com/security/cve/CVE-2026-46173	REPORT
	https://access.redhat.com/security/cve/CVE-2026-46331	REPORT
	https://bugzilla.redhat.com/2460646	REPORT
	https://bugzilla.redhat.com/2461503	REPORT
	https://bugzilla.redhat.com/2461548	REPORT
	https://bugzilla.redhat.com/2464092	REPORT
	https://bugzilla.redhat.com/2464096	REPORT
	https://bugzilla.redhat.com/2464449	REPORT
	https://bugzilla.redhat.com/2464502	REPORT
	https://bugzilla.redhat.com/2467083	REPORT
	https://bugzilla.redhat.com/2468061	REPORT
	https://bugzilla.redhat.com/2479492	REPORT
	https://bugzilla.redhat.com/2482181	REPORT
	https://bugzilla.redhat.com/2482563	REPORT
	https://bugzilla.redhat.com/2482608	REPORT
	https://bugzilla.redhat.com/2482634	REPORT
	https://bugzilla.redhat.com/2482645	REPORT
	https://errata.almalinux.org/10/ALSA-2026-27288.html	ADVISORY

JSON

To clipboard

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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: can: isotp: fix tx.buf use-after-free in isotp_sendmsg() (CVE-2026-31474)\n  * kernel: mptcp: fix slab-use-after-free in __inet_lookup_established (CVE-2026-31669)\n  * kernel: rxrpc: Fix RxGK token loading to check bounds (CVE-2026-31641)\n  * kernel: xen/privcmd: fix double free via VMA splitting (CVE-2026-31787)\n  * kernel: Buffer overflow in drivers/xen/sys-hypervisor.c (CVE-2026-31786)\n  * kernel: net: mana: fix use-after-free in add_adev() error path (CVE-2026-43056)\n  * kernel: Bluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync (CVE-2026-31772)\n  * kernel: bnxt_en: Fix RSS context delete logic (CVE-2026-43260)\n  * kernel: crypto: caam - fix overflow on long hmac keys (CVE-2026-43330)\n  * kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)\n  * kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056)\n  * kernel: wifi: mac80211: drop stray \u0027static\u0027 from fast-RX rx_result (CVE-2026-46152)\n  * kernel: wifi: mac80211: remove station if connection prep fails (CVE-2026-46125)\n  * kernel: exit: prevent preemption of oopsing TASK_DEAD task (CVE-2026-46173)\n  * kernel: wifi: mac80211: use safe list iteration in radar detect work (CVE-2026-46166)\n\n\nBug Fix(es) and Enhancement(s):  \n\n  * AlmaLinux10.0 - s390/ap: Expose ap_bindings_complete_count counter via sysfs [almalinux-10.2.z] (JIRA:AlmaLinux-166047)\n  * AlmaLinux9.5 crash due to lpfc NULL ndlp-\u003evport [almalinux-10.2.z] (JIRA:AlmaLinux-171774)\n  * objtool static_call check blocks build of out-of-tree livepatch modules on AlmaLinux 10.2 GA kernels ? missing upstream revert f495054bd12e (JIRA:AlmaLinux-178495)\n  * ibmveth Adapter Freeze with Small MSS [almalinux-10.2.z] (JIRA:AlmaLinux-179723)\n  * rbd: eliminate a race in lock_dwork draining on unmap [almalinux-10.2.z] (JIRA:AlmaLinux-183127)\n  * AlmaLinux10.0 - s390/mm: Add missing secure storage access fixups [almalinux-10.2.z] (JIRA:AlmaLinux-183319)\n  * [AlmaLinux10.2.z] Enable Pretimeout Watchdog Panic Functionality on x86 (JIRA:AlmaLinux-182299)\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-2026:27288",
  "modified": "2026-06-26T17:56:00Z",
  "published": "2026-06-19T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:27288"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-31474"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-31641"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-31669"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-31772"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-31786"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-31787"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-43056"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-43260"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-43330"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46056"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46125"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46152"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46166"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46173"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46331"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2460646"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2461503"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2461548"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2464092"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2464096"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2464449"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2464502"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2467083"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2468061"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2479492"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2482181"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2482563"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2482608"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2482634"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2482645"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/10/ALSA-2026-27288.html"
    }
  ],
  "related": [
    "CVE-2026-31474",
    "CVE-2026-31669",
    "CVE-2026-31641",
    "CVE-2026-31787",
    "CVE-2026-31786",
    "CVE-2026-43056",
    "CVE-2026-31772",
    "CVE-2026-43260",
    "CVE-2026-43330",
    "CVE-2026-46331",
    "CVE-2026-46056",
    "CVE-2026-46152",
    "CVE-2026-46125",
    "CVE-2026-46173",
    "CVE-2026-46166"
  ],
  "summary": "Important: kernel security, bug fix, and enhancement update"
}

CVE-2026-31474 (GCVE-0-2026-31474)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:54 – Updated: 2026-05-11 22:09

Title

can: isotp: fix tx.buf use-after-free in isotp_sendmsg()

Summary

In the Linux kernel, the following vulnerability has been resolved: can: isotp: fix tx.buf use-after-free in isotp_sendmsg() isotp_sendmsg() uses only cmpxchg() on so->tx.state to serialize access to so->tx.buf. isotp_release() waits for ISOTP_IDLE via wait_event_interruptible() and then calls kfree(so->tx.buf). If a signal interrupts the wait_event_interruptible() inside close() while tx.state is ISOTP_SENDING, the loop exits early and release proceeds to force ISOTP_SHUTDOWN and continues to kfree(so->tx.buf) while sendmsg may still be reading so->tx.buf for the final CAN frame in isotp_fill_dataframe(). The so->tx.buf can be allocated once when the standard tx.buf length needs to be extended. Move the kfree() of this potentially extended tx.buf to sk_destruct time when either isotp_sendmsg() and isotp_release() are done.

Severity

7.8 (High)


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

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/cb3d6efa78460e6d5…
https://git.kernel.org/stable/c/9649d051e54413049…
https://git.kernel.org/stable/c/eec8a1b18a79600bd…
https://git.kernel.org/stable/c/2e62e7051eca75a7f…
https://git.kernel.org/stable/c/424e95d62110cdbc8…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 96d1c81e6a0478535342dff6c730adb076cd84e8 , < cb3d6efa78460e6d50bf68806d0db66265709f64 (git) Affected: 96d1c81e6a0478535342dff6c730adb076cd84e8 , < 9649d051e54413049c009638ec1dc23962c884a4 (git) Affected: 96d1c81e6a0478535342dff6c730adb076cd84e8 , < eec8a1b18a79600bd4419079dc0026c1db72a830 (git) Affected: 96d1c81e6a0478535342dff6c730adb076cd84e8 , < 2e62e7051eca75a7f2e3d52d62ec10d7d7aa358c (git) Affected: 96d1c81e6a0478535342dff6c730adb076cd84e8 , < 424e95d62110cdbc8fd12b40918f37e408e35a92 (git)
Linux	Linux	Affected: 6.4 Unaffected: 0 , < 6.4 (semver) Unaffected: 6.6.131 , ≤ 6.6.* (semver) Unaffected: 6.12.80 , ≤ 6.12.* (semver) Unaffected: 6.18.21 , ≤ 6.18.* (semver) Unaffected: 6.19.11 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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              "version": "6.4"
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              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.12.80",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.21",
              "versionType": "semver"
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            {
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            {
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                },
                {
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        }
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CVE-2026-31641 (GCVE-0-2026-31641)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:44 – Updated: 2026-05-11 22:12

Title

rxrpc: Fix RxGK token loading to check bounds

Summary

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix RxGK token loading to check bounds rxrpc_preparse_xdr_yfs_rxgk() reads the raw key length and ticket length from the XDR token as u32 values and passes each through round_up(x, 4) before using the rounded value for validation and allocation. When the raw length is >= 0xfffffffd, round_up() wraps to 0, so the bounds check and kzalloc both use 0 while the subsequent memcpy still copies the original ~4 GiB value, producing a heap buffer overflow reachable from an unprivileged add_key() call. Fix this by: (1) Rejecting raw key lengths above AFSTOKEN_GK_KEY_MAX and raw ticket lengths above AFSTOKEN_GK_TOKEN_MAX before rounding, consistent with the caps that the RxKAD path already enforces via AFSTOKEN_RK_TIX_MAX. (2) Sizing the flexible-array allocation from the validated raw key length via struct_size_t() instead of the rounded value. (3) Caching the raw lengths so that the later field assignments and memcpy calls do not re-read from the token, eliminating a class of TOCTOU re-parse. The control path (valid token with lengths within bounds) is unaffected.

Severity

7.8 (High)


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

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/3e04596cba8a86cbf…
https://git.kernel.org/stable/c/49875b360c2b83a3c…
https://git.kernel.org/stable/c/d179a868dd755b0cf…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0ca100ff4df64f5d0f6c1dd5080c3e096786bea6 , < 3e04596cba8a86cbff9c3f4bf0a524a3a488773c (git) Affected: 0ca100ff4df64f5d0f6c1dd5080c3e096786bea6 , < 49875b360c2b83a3c226e189c502e501d83e6445 (git) Affected: 0ca100ff4df64f5d0f6c1dd5080c3e096786bea6 , < d179a868dd755b0cfcf7582e00943d702b9943b8 (git)
Linux	Linux	Affected: 6.16 Unaffected: 0 , < 6.16 (semver) Unaffected: 6.18.23 , ≤ 6.18.* (semver) Unaffected: 6.19.13 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/rxrpc/key.c"
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CVE-2026-31669 (GCVE-0-2026-31669)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:45 – Updated: 2026-05-11 22:13

Title

mptcp: fix slab-use-after-free in __inet_lookup_established

Summary

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix slab-use-after-free in __inet_lookup_established The ehash table lookups are lockless and rely on SLAB_TYPESAFE_BY_RCU to guarantee socket memory stability during RCU read-side critical sections. Both tcp_prot and tcpv6_prot have their slab caches created with this flag via proto_register(). However, MPTCP's mptcp_subflow_init() copies tcpv6_prot into tcpv6_prot_override during inet_init() (fs_initcall, level 5), before inet6_init() (module_init/device_initcall, level 6) has called proto_register(&tcpv6_prot). At that point, tcpv6_prot.slab is still NULL, so tcpv6_prot_override.slab remains NULL permanently. This causes MPTCP v6 subflow child sockets to be allocated via kmalloc (falling into kmalloc-4k) instead of the TCPv6 slab cache. The kmalloc-4k cache lacks SLAB_TYPESAFE_BY_RCU, so when these sockets are freed without SOCK_RCU_FREE (which is cleared for child sockets by design), the memory can be immediately reused. Concurrent ehash lookups under rcu_read_lock can then access freed memory, triggering a slab-use-after-free in __inet_lookup_established. Fix this by splitting the IPv6-specific initialization out of mptcp_subflow_init() into a new mptcp_subflow_v6_init(), called from mptcp_proto_v6_init() before protocol registration. This ensures tcpv6_prot_override.slab correctly inherits the SLAB_TYPESAFE_BY_RCU slab cache.

Severity

9.8 (Critical)


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

Assigner

Linux

References

7 references

URL	Tags
https://git.kernel.org/stable/c/f6e1f25fa5e733570…
https://git.kernel.org/stable/c/fb1f54b7d16f393b8…
https://git.kernel.org/stable/c/3fd6547f5b8ac9968…
https://git.kernel.org/stable/c/eb9c6aeb512f877cf…
https://git.kernel.org/stable/c/15fa9ead4d5e6b6b9…
https://git.kernel.org/stable/c/b313e9037d98c1393…
https://git.kernel.org/stable/c/9b55b253907e74312…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: b19bc2945b40b9fd38e835700907ffe8534ef0de , < f6e1f25fa5e733570f6d6fe37a4dfed2a0deba47 (git) Affected: b19bc2945b40b9fd38e835700907ffe8534ef0de , < fb1f54b7d16f393b8b65d328410f78b4beea8fcc (git) Affected: b19bc2945b40b9fd38e835700907ffe8534ef0de , < 3fd6547f5b8ac99687be6d937a0321efda760597 (git) Affected: b19bc2945b40b9fd38e835700907ffe8534ef0de , < eb9c6aeb512f877cf397deb1e4526f646c70e4a7 (git) Affected: b19bc2945b40b9fd38e835700907ffe8534ef0de , < 15fa9ead4d5e6b6b9c794e84144146c917f2cb62 (git) Affected: b19bc2945b40b9fd38e835700907ffe8534ef0de , < b313e9037d98c13938740e5ebda7852929366dff (git) Affected: b19bc2945b40b9fd38e835700907ffe8534ef0de , < 9b55b253907e7431210483519c5ad711a37dafa1 (git)
Linux	Linux	Affected: 5.12 Unaffected: 0 , < 5.12 (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.169 , ≤ 6.1.* (semver) Unaffected: 6.6.135 , ≤ 6.6.* (semver) Unaffected: 6.12.82 , ≤ 6.12.* (semver) Unaffected: 6.18.23 , ≤ 6.18.* (semver) Unaffected: 6.19.13 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.13",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                }
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            }
          ]
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix slab-use-after-free in __inet_lookup_established\n\nThe ehash table lookups are lockless and rely on\nSLAB_TYPESAFE_BY_RCU to guarantee socket memory stability\nduring RCU read-side critical sections. Both tcp_prot and\ntcpv6_prot have their slab caches created with this flag\nvia proto_register().\n\nHowever, MPTCP\u0027s mptcp_subflow_init() copies tcpv6_prot into\ntcpv6_prot_override during inet_init() (fs_initcall, level 5),\nbefore inet6_init() (module_init/device_initcall, level 6) has\ncalled proto_register(\u0026tcpv6_prot). At that point,\ntcpv6_prot.slab is still NULL, so tcpv6_prot_override.slab\nremains NULL permanently.\n\nThis causes MPTCP v6 subflow child sockets to be allocated via\nkmalloc (falling into kmalloc-4k) instead of the TCPv6 slab\ncache. The kmalloc-4k cache lacks SLAB_TYPESAFE_BY_RCU, so\nwhen these sockets are freed without SOCK_RCU_FREE (which is\ncleared for child sockets by design), the memory can be\nimmediately reused. Concurrent ehash lookups under\nrcu_read_lock can then access freed memory, triggering a\nslab-use-after-free in __inet_lookup_established.\n\nFix this by splitting the IPv6-specific initialization out of\nmptcp_subflow_init() into a new mptcp_subflow_v6_init(), called\nfrom mptcp_proto_v6_init() before protocol registration. This\nensures tcpv6_prot_override.slab correctly inherits the\nSLAB_TYPESAFE_BY_RCU slab cache."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:13:21.124Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f6e1f25fa5e733570f6d6fe37a4dfed2a0deba47"
        },
        {
          "url": "https://git.kernel.org/stable/c/fb1f54b7d16f393b8b65d328410f78b4beea8fcc"
        },
        {
          "url": "https://git.kernel.org/stable/c/3fd6547f5b8ac99687be6d937a0321efda760597"
        },
        {
          "url": "https://git.kernel.org/stable/c/eb9c6aeb512f877cf397deb1e4526f646c70e4a7"
        },
        {
          "url": "https://git.kernel.org/stable/c/15fa9ead4d5e6b6b9c794e84144146c917f2cb62"
        },
        {
          "url": "https://git.kernel.org/stable/c/b313e9037d98c13938740e5ebda7852929366dff"
        },
        {
          "url": "https://git.kernel.org/stable/c/9b55b253907e7431210483519c5ad711a37dafa1"
        }
      ],
      "title": "mptcp: fix slab-use-after-free in __inet_lookup_established",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31669",
    "datePublished": "2026-04-24T14:45:17.295Z",
    "dateReserved": "2026-03-09T15:48:24.130Z",
    "dateUpdated": "2026-05-11T22:13:21.124Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-31772 (GCVE-0-2026-31772)

Vulnerability from cvelistv5 – Published: 2026-05-01 14:15 – Updated: 2026-05-23 16:05

Title

Bluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync hci_le_big_create_sync() uses DEFINE_FLEX to allocate a struct hci_cp_le_big_create_sync on the stack with room for 0x11 (17) BIS entries. However, conn->num_bis can hold up to HCI_MAX_ISO_BIS (31) entries — validated against ISO_MAX_NUM_BIS (0x1f) in the caller hci_conn_big_create_sync(). When conn->num_bis is between 18 and 31, the memcpy that copies conn->bis into cp->bis writes up to 14 bytes past the stack buffer, corrupting adjacent stack memory. This is trivially reproducible: binding an ISO socket with bc_num_bis = ISO_MAX_NUM_BIS (31) and calling listen() will eventually trigger hci_le_big_create_sync() from the HCI command sync worker, causing a KASAN-detectable stack-out-of-bounds write: BUG: KASAN: stack-out-of-bounds in hci_le_big_create_sync+0x256/0x3b0 Write of size 31 at addr ffffc90000487b48 by task kworker/u9:0/71 Fix this by changing the DEFINE_FLEX count from the incorrect 0x11 to HCI_MAX_ISO_BIS, which matches the maximum number of BIS entries that conn->bis can actually carry.

Severity

7.8 (High)


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

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/f5d446624345d309e…
https://git.kernel.org/stable/c/aba0aea354015794e…
https://git.kernel.org/stable/c/eaf32002ca7b1ba51…
https://git.kernel.org/stable/c/bc39a094730ce062f…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 91d19383b7ed035e22165ae5c836e50bb9f95fbe , < f5d446624345d309e7a4a1b27ea9f028d6a8c5d9 (git) Affected: 42ecf1947135110ea08abeaca39741636f9a2285 , < aba0aea354015794e8312dd7efe726967e58aefe (git) Affected: 42ecf1947135110ea08abeaca39741636f9a2285 , < eaf32002ca7b1ba51c9f140991fd9febe6de79f0 (git) Affected: 42ecf1947135110ea08abeaca39741636f9a2285 , < bc39a094730ce062fa034a529c93147c096cb488 (git) Affected: 8958e1cee4e2eac1a5b825caa4dd96ce9ed975dd (git) Affected: 6.12.2 , < 6.12.81 (semver) Affected: 6.11.11 , < 6.12 (semver)
Linux	Linux	Affected: 6.13 Unaffected: 0 , < 6.13 (semver) Unaffected: 6.12.81 , ≤ 6.12.* (semver) Unaffected: 6.18.22 , ≤ 6.18.* (semver) Unaffected: 6.19.12 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_sync.c"
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          "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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            {
              "lessThan": "aba0aea354015794e8312dd7efe726967e58aefe",
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            },
            {
              "lessThan": "eaf32002ca7b1ba51c9f140991fd9febe6de79f0",
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              "versionType": "git"
            },
            {
              "lessThan": "bc39a094730ce062fa034a529c93147c096cb488",
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            },
            {
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "6.12.81",
              "status": "affected",
              "version": "6.12.2",
              "versionType": "semver"
            },
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              "status": "affected",
              "version": "6.11.11",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          "vendor": "Linux",
          "versions": [
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              "status": "unaffected",
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              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.22",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync\n\nhci_le_big_create_sync() uses DEFINE_FLEX to allocate a\nstruct hci_cp_le_big_create_sync on the stack with room for 0x11 (17)\nBIS entries.  However, conn-\u003enum_bis can hold up to HCI_MAX_ISO_BIS (31)\nentries \u2014 validated against ISO_MAX_NUM_BIS (0x1f) in the caller\nhci_conn_big_create_sync().  When conn-\u003enum_bis is between 18 and 31,\nthe memcpy that copies conn-\u003ebis into cp-\u003ebis writes up to 14 bytes\npast the stack buffer, corrupting adjacent stack memory.\n\nThis is trivially reproducible: binding an ISO socket with\nbc_num_bis = ISO_MAX_NUM_BIS (31) and calling listen() will\neventually trigger hci_le_big_create_sync() from the HCI command\nsync worker, causing a KASAN-detectable stack-out-of-bounds write:\n\n  BUG: KASAN: stack-out-of-bounds in hci_le_big_create_sync+0x256/0x3b0\n  Write of size 31 at addr ffffc90000487b48 by task kworker/u9:0/71\n\nFix this by changing the DEFINE_FLEX count from the incorrect 0x11 to\nHCI_MAX_ISO_BIS, which matches the maximum number of BIS entries that\nconn-\u003ebis can actually carry."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "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"
          }
        }
      ],
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        "dateUpdated": "2026-05-23T16:05:54.091Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f5d446624345d309e7a4a1b27ea9f028d6a8c5d9"
        },
        {
          "url": "https://git.kernel.org/stable/c/aba0aea354015794e8312dd7efe726967e58aefe"
        },
        {
          "url": "https://git.kernel.org/stable/c/eaf32002ca7b1ba51c9f140991fd9febe6de79f0"
        },
        {
          "url": "https://git.kernel.org/stable/c/bc39a094730ce062fa034a529c93147c096cb488"
        }
      ],
      "title": "Bluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync",
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        "engine": "bippy-1.2.0"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31772",
    "datePublished": "2026-05-01T14:15:00.582Z",
    "dateReserved": "2026-03-09T15:48:24.140Z",
    "dateUpdated": "2026-05-23T16:05:54.091Z",
    "state": "PUBLISHED"
  },
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}

CVE-2026-31786 (GCVE-0-2026-31786)

Vulnerability from cvelistv5 – Published: 2026-04-30 10:31 – Updated: 2026-06-14 17:44

Title

Buffer overflow in drivers/xen/sys-hypervisor.c

Summary

In the Linux kernel, the following vulnerability has been resolved: Buffer overflow in drivers/xen/sys-hypervisor.c The build id returned by HYPERVISOR_xen_version(XENVER_build_id) is neither NUL terminated nor a string. The first causes a buffer overflow as sprintf in buildid_show will read and copy till it finds a NUL. 00000000 f4 91 51 f4 dd 38 9e 9d 65 47 52 eb 10 71 db 50 |..Q..8..eGR..q.P| 00000010 b9 a8 01 42 6f 2e 32 |...Bo.2| 00000017 So use a memcpy instead of sprintf to have the correct value: 00000000 f4 91 51 f4 dd 00 9e 9d 65 47 52 eb 10 71 db 50 |..Q.....eGR..q.P| 00000010 b9 a8 01 42 |...B| 00000014 (the above have a hack to embed a zero inside and check it's returned correctly). This is XSA-485 / CVE-2026-31786

Severity

7.8 (High)


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

Assigner

Linux

References

10 references

URL	Tags
https://git.kernel.org/stable/c/e3af585e1728c9176…
https://git.kernel.org/stable/c/8288d031a01dbacfd…
https://git.kernel.org/stable/c/f458ba102da97fafc…
https://git.kernel.org/stable/c/4b4defd2fce3f966c…
https://git.kernel.org/stable/c/5c5ff7c7bd15bb536…
https://git.kernel.org/stable/c/d5f59216650c51e5e…
https://git.kernel.org/stable/c/52cecff98bda2c51e…
https://git.kernel.org/stable/c/27fdbab4221b375de…
http://www.openwall.com/lists/oss-security/2026/0…
http://xenbits.xen.org/xsa/advisory-485.html

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 84b7625728ea311ea35bdaa0eded53c1c56baeaa , < e3af585e1728c917682b6a3de9a69b41fb9194d4 (git) Affected: 84b7625728ea311ea35bdaa0eded53c1c56baeaa , < 8288d031a01dbacfde3fc643f7be3d23504de64d (git) Affected: 84b7625728ea311ea35bdaa0eded53c1c56baeaa , < f458ba102da97fafca106327086fc95f3fc764cb (git) Affected: 84b7625728ea311ea35bdaa0eded53c1c56baeaa , < 4b4defd2fce3f966c25adabf46644a85558f1169 (git) Affected: 84b7625728ea311ea35bdaa0eded53c1c56baeaa , < 5c5ff7c7bd15bb536f44b10b3fb5b8408f344d0a (git) Affected: 84b7625728ea311ea35bdaa0eded53c1c56baeaa , < d5f59216650c51e5e3fcb7517c825bc8047f60ef (git) Affected: 84b7625728ea311ea35bdaa0eded53c1c56baeaa , < 52cecff98bda2c51eed1c6ce9d21c5d6268fb19d (git) Affected: 84b7625728ea311ea35bdaa0eded53c1c56baeaa , < 27fdbab4221b375de54bf91919798d88520c6e28 (git)
Linux	Linux	Affected: 4.13 Unaffected: 0 , < 4.13 (semver) Unaffected: 5.10.254 , ≤ 5.10.* (semver) Unaffected: 5.15.204 , ≤ 5.15.* (semver) Unaffected: 6.1.170 , ≤ 6.1.* (semver) Unaffected: 6.6.137 , ≤ 6.6.* (semver) Unaffected: 6.12.85 , ≤ 6.12.* (semver) Unaffected: 6.18.26 , ≤ 6.18.* (semver) Unaffected: 7.0.3 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-04-30T10:39:32.708Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          {
            "url": "http://www.openwall.com/lists/oss-security/2026/04/28/12"
          },
          {
            "url": "http://xenbits.xen.org/xsa/advisory-485.html"
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        ],
        "title": "CVE Program Container"
      }
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    "cna": {
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
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              "version": "6.12.85",
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              "version": "6.18.26",
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            },
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              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.3",
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            },
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              "lessThanOrEqual": "*",
              "status": "unaffected",
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CVE-2026-31787 (GCVE-0-2026-31787)

Vulnerability from cvelistv5 – Published: 2026-04-30 10:31 – Updated: 2026-06-14 17:44

Title

xen/privcmd: fix double free via VMA splitting

Summary

In the Linux kernel, the following vulnerability has been resolved: xen/privcmd: fix double free via VMA splitting privcmd_vm_ops defines .close (privcmd_close), but neither .may_split nor .open. When userspace does a partial munmap() on a privcmd mapping, the kernel splits the VMA via __split_vma(). Since may_split is NULL, the split is allowed. vm_area_dup() copies vm_private_data (a pages array allocated in alloc_empty_pages()) into the new VMA without any fixup, because there is no .open callback. Both VMAs now point to the same pages array. When the unmapped portion is closed, privcmd_close() calls: - xen_unmap_domain_gfn_range() - xen_free_unpopulated_pages() - kvfree(pages) The surviving VMA still holds the dangling pointer. When it is later destroyed, the same sequence runs again, which leads to a double free. Fix this issue by adding a .may_split callback denying the VMA split. This is XSA-487 / CVE-2026-31787

Severity

No CVSS data available.

Assigner

Linux

References

10 references

URL	Tags
https://git.kernel.org/stable/c/dbf862ce9f009128a…
https://git.kernel.org/stable/c/2b985d3a024b9e8c2…
https://git.kernel.org/stable/c/1576ff3869cbd3620…
https://git.kernel.org/stable/c/402d84ad9e89bd4cb…
https://git.kernel.org/stable/c/2894a351fe2ea8684…
https://git.kernel.org/stable/c/446ee446d9ae66f36…
https://git.kernel.org/stable/c/71bf829800758a6e3…
https://git.kernel.org/stable/c/24daca4fc07f3ff8c…
http://www.openwall.com/lists/oss-security/2026/0…
http://xenbits.xen.org/xsa/advisory-487.html

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: d71f513985c22f1050295d1a7e4327cf9fb060da , < dbf862ce9f009128ab86b234d91413a3e450beb4 (git) Affected: d71f513985c22f1050295d1a7e4327cf9fb060da , < 2b985d3a024b9e8c24e21671b34e855569763808 (git) Affected: d71f513985c22f1050295d1a7e4327cf9fb060da , < 1576ff3869cbd3620717195f971c85b7d7fd62b5 (git) Affected: d71f513985c22f1050295d1a7e4327cf9fb060da , < 402d84ad9e89bd4cbfd07ca8598532b7021daf95 (git) Affected: d71f513985c22f1050295d1a7e4327cf9fb060da , < 2894a351fe2ea8684919d36df3188b9a35e3926f (git) Affected: d71f513985c22f1050295d1a7e4327cf9fb060da , < 446ee446d9ae66f36e95c3c90bbcc4e56b94cde0 (git) Affected: d71f513985c22f1050295d1a7e4327cf9fb060da , < 71bf829800758a6e3889096e4754ef47ba7fc850 (git) Affected: d71f513985c22f1050295d1a7e4327cf9fb060da , < 24daca4fc07f3ff8cd0e3f629cd982187f48436a (git)
Linux	Linux	Affected: 3.8 Unaffected: 0 , < 3.8 (semver) Unaffected: 5.10.254 , ≤ 5.10.* (semver) Unaffected: 5.15.204 , ≤ 5.15.* (semver) Unaffected: 6.1.170 , ≤ 6.1.* (semver) Unaffected: 6.6.137 , ≤ 6.6.* (semver) Unaffected: 6.12.85 , ≤ 6.12.* (semver) Unaffected: 6.18.26 , ≤ 6.18.* (semver) Unaffected: 7.0.3 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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CVE-2026-43056 (GCVE-0-2026-43056)

Vulnerability from cvelistv5 – Published: 2026-05-01 14:15 – Updated: 2026-05-11 22:16

Title

net: mana: fix use-after-free in add_adev() error path

Summary

In the Linux kernel, the following vulnerability has been resolved: net: mana: fix use-after-free in add_adev() error path If auxiliary_device_add() fails, add_adev() jumps to add_fail and calls auxiliary_device_uninit(adev). The auxiliary device has its release callback set to adev_release(), which frees the containing struct mana_adev. Since adev is embedded in struct mana_adev, the subsequent fall-through to init_fail and access to adev->id may result in a use-after-free. Fix this by saving the allocated auxiliary device id in a local variable before calling auxiliary_device_add(), and use that saved id in the cleanup path after auxiliary_device_uninit().

Severity

7.8 (High)


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

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/d88541ffd56d62a61…
https://git.kernel.org/stable/c/43f5b19fd190fea20…
https://git.kernel.org/stable/c/5f4061f8225d18695…
https://git.kernel.org/stable/c/e5a75bf026c686b91…
https://git.kernel.org/stable/c/c4ea7d8907cf72b25…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a69839d4327d053b18d8e1b0e7ddeee78db78f4f , < d88541ffd56d62a61e77209080001eddd4d69815 (git) Affected: a69839d4327d053b18d8e1b0e7ddeee78db78f4f , < 43f5b19fd190fea20d052bc84741b28031d5baa9 (git) Affected: a69839d4327d053b18d8e1b0e7ddeee78db78f4f , < 5f4061f8225d18695e5afe9bbf1cb7bd673d7872 (git) Affected: a69839d4327d053b18d8e1b0e7ddeee78db78f4f , < e5a75bf026c686b91a7dc6f9c5caf5016745d1fe (git) Affected: a69839d4327d053b18d8e1b0e7ddeee78db78f4f , < c4ea7d8907cf72b259bf70bd8c2e791e1c4ff70f (git)
Linux	Linux	Affected: 6.2 Unaffected: 0 , < 6.2 (semver) Unaffected: 6.6.134 , ≤ 6.6.* (semver) Unaffected: 6.12.81 , ≤ 6.12.* (semver) Unaffected: 6.18.22 , ≤ 6.18.* (semver) Unaffected: 6.19.12 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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CVE-2026-43260 (GCVE-0-2026-43260)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:28 – Updated: 2026-05-11 22:21

Title

bnxt_en: Fix RSS context delete logic

Summary

In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Fix RSS context delete logic We need to free the corresponding RSS context VNIC in FW everytime an RSS context is deleted in driver. Commit 667ac333dbb7 added a check to delete the VNIC in FW only when netif_running() is true to help delete RSS contexts with interface down. Having that condition will make the driver leak VNICs in FW whenever close() happens with active RSS contexts. On the subsequent open(), as part of RSS context restoration, we will end up trying to create extra VNICs for which we did not make any reservation. FW can fail this request, thereby making us lose active RSS contexts. Suppose an RSS context is deleted already and we try to process a delete request again, then the HWRM functions will check for validity of the request and they simply return if the resource is already freed. So, even for delete-when-down cases, netif_running() check is not necessary. Remove the netif_running() condition check when deleting an RSS context.

Severity

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/348a5f8d06c7bdf95…
https://git.kernel.org/stable/c/079986d6db1f8e3d5…
https://git.kernel.org/stable/c/9a9b89eea4a9cc772…
https://git.kernel.org/stable/c/e123d9302d223767b…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 667ac333dbb7e265b3f5bc4bc94e236f64682c86 , < 348a5f8d06c7bdf954e13c17ad5f80b59a075604 (git) Affected: 667ac333dbb7e265b3f5bc4bc94e236f64682c86 , < 079986d6db1f8e3d50c55f400cf998ac9690d2c8 (git) Affected: 667ac333dbb7e265b3f5bc4bc94e236f64682c86 , < 9a9b89eea4a9cc7726702946ff688d716962fabd (git) Affected: 667ac333dbb7e265b3f5bc4bc94e236f64682c86 , < e123d9302d223767bd910bfbcfe607bae909f8ac (git)
Linux	Linux	Affected: 6.11 Unaffected: 0 , < 6.11 (semver) Unaffected: 6.12.75 , ≤ 6.12.* (semver) Unaffected: 6.18.16 , ≤ 6.18.* (semver) Unaffected: 6.19.6 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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JSON

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CVE-2026-43330 (GCVE-0-2026-43330)

Vulnerability from cvelistv5 – Published: 2026-05-08 13:31 – Updated: 2026-05-11 22:22

Title

crypto: caam - fix overflow on long hmac keys

Summary

In the Linux kernel, the following vulnerability has been resolved: crypto: caam - fix overflow on long hmac keys When a key longer than block size is supplied, it is copied and then hashed into the real key. The memory allocated for the copy needs to be rounded to DMA cache alignment, as otherwise the hashed key may corrupt neighbouring memory. The copying is performed using kmemdup, however this leads to an overflow: reading more bytes (aligned_len - keylen) from the keylen source buffer. Fix this by replacing kmemdup with kmalloc, followed by memcpy.

Severity

7.8 (High)


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

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/31022cfde5235c45f…
https://git.kernel.org/stable/c/c2fb4984fe09fc176…
https://git.kernel.org/stable/c/aa545df011338df13…
https://git.kernel.org/stable/c/cebc5ebd958346195…
https://git.kernel.org/stable/c/80688afb9c35b3934…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 199354d7fb6eaa2cc5bb650af0bca624baffee35 , < 31022cfde5235c45fa765f0aabeff5f0652852f2 (git) Affected: 199354d7fb6eaa2cc5bb650af0bca624baffee35 , < c2fb4984fe09fc176fe4c12d5e3edf626df6511d (git) Affected: 199354d7fb6eaa2cc5bb650af0bca624baffee35 , < aa545df011338df13f0833fc1fabcb15c0521959 (git) Affected: 199354d7fb6eaa2cc5bb650af0bca624baffee35 , < cebc5ebd958346195b77f42d0cd5141b4e448fae (git) Affected: 199354d7fb6eaa2cc5bb650af0bca624baffee35 , < 80688afb9c35b3934ce2d6be9973758915e2e0ef (git)
Linux	Linux	Affected: 6.3 Unaffected: 0 , < 6.3 (semver) Unaffected: 6.6.134 , ≤ 6.6.* (semver) Unaffected: 6.12.81 , ≤ 6.12.* (semver) Unaffected: 6.18.22 , ≤ 6.18.* (semver) Unaffected: 6.19.12 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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  "dataVersion": "5.2"
}

CVE-2026-46056 (GCVE-0-2026-46056)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:57 – Updated: 2026-06-19 11:59

Title

Bluetooth: hci_event: fix potential UAF in SSP passkey handlers

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers hci_conn lookup and field access must be covered by hdev lock in hci_user_passkey_notify_evt() and hci_keypress_notify_evt(), otherwise the connection can be freed concurrently. Extend the hci_dev_lock critical section to cover all conn usage in both handlers. Keep the existing keypress notification behavior unchanged by routing the early exits through a common unlock path.

Severity

8.8 (High)


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

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/ea18732d2614557e5…
https://git.kernel.org/stable/c/d28311539ac9f65e2…
https://git.kernel.org/stable/c/b6ae482f88654db40…
https://git.kernel.org/stable/c/204028af77a265e31…
https://git.kernel.org/stable/c/01a6431766c35dfed…
https://git.kernel.org/stable/c/e08d75753db17aa94…
https://git.kernel.org/stable/c/8c6443bb9257b7809…
https://git.kernel.org/stable/c/85fa3512048793076…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 92a25256f142d55e25f9959441cea6ddeabae57e , < ea18732d2614557e59f4c0d8cdbe6611aeab33b7 (git) Affected: 92a25256f142d55e25f9959441cea6ddeabae57e , < d28311539ac9f65e29308ea219ecaa48aa5e76e5 (git) Affected: 92a25256f142d55e25f9959441cea6ddeabae57e , < b6ae482f88654db407c8c17619d4b62959b903ef (git) Affected: 92a25256f142d55e25f9959441cea6ddeabae57e , < 204028af77a265e31ceb4ba7f643349a3cca72b2 (git) Affected: 92a25256f142d55e25f9959441cea6ddeabae57e , < 01a6431766c35dfedb86e0cb5d3fc80c6d604a47 (git) Affected: 92a25256f142d55e25f9959441cea6ddeabae57e , < e08d75753db17aa943d7622f09d9c217b5bfd3b8 (git) Affected: 92a25256f142d55e25f9959441cea6ddeabae57e , < 8c6443bb9257b780986fb67ec08565bf48ecb8d7 (git) Affected: 92a25256f142d55e25f9959441cea6ddeabae57e , < 85fa3512048793076eef658f66489112dcc91993 (git)
Linux	Linux	Affected: 3.7 Unaffected: 0 , < 3.7 (semver) Unaffected: 5.10.259 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.140 , ≤ 6.6.* (semver) Unaffected: 6.12.86 , ≤ 6.12.* (semver) Unaffected: 6.18.27 , ≤ 6.18.* (semver) Unaffected: 7.0.4 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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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.

Detection rules are retrieved from Rulezet.

Action not permitted

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Tags

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Nomenclature