Vulnerability-Lookup

ALSA-2024:4349

Vulnerability from osv_almalinux – Published: 2024-07-08 00:00 – Updated: 2024-11-03 22:17 – Source website

Summary

Moderate: kernel security and bug fix update

Details

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

Security Fix(es):

kernel: net/mlx5e: Fix operation precedence bug in port timestamping napi_poll context (CVE-2023-52626)
kernel: Bluetooth: Avoid potential use-after-free in hci_error_reset (CVE-2024-26801)
kernel: crypto: qat - resolve race condition during AER recovery (CVE-2024-26974)
kernel: xen-netfront: Add missing skb_mark_for_recycle (CVE-2024-27393)
kernel: net/mlx5e: fix a potential double-free in fs_any_create_groups (CVE-2023-52667)
kernel: smb: client: fix UAF in smb2_reconnect_server() (CVE-2024-35870)
kernel: net/mlx5: Properly link new fs rules into the tree (CVE-2024-35960)
kernel: net: hns3: do not allow call hns3_nic_net_open repeatedly (CVE-2021-47400)

Bug Fix(es):

cifs - kernel panic with cifs_put_smb_ses (JIRA:AlmaLinux-28943)
BUG: unable to handle page fault for address: ff16bf752f593ff8 [almalinux-9.4.z] (JIRA:AlmaLinux-35672)
[HPE 9.4 Bug] Request merge of AMD address translation library patch series [almalinux-9.4.z] (JIRA:AlmaLinux-36220)
[AlmaLinux9] kernel BUG at lib/list_debug.c:51! [almalinux-9.4.z] (JIRA:AlmaLinux-36687)
ice: DPLL-related fixes [almalinux-9.4.z] (JIRA:AlmaLinux-36716)
CNB95: net/sched: update TC core to upstream v6.8 [almalinux-9.4.z] (JIRA:AlmaLinux-37641)
IPv6: SR: backport fixes from upstream [almalinux-9.4.z] (JIRA:AlmaLinux-37669)
[RFE] Backport tmpfs noswap mount option [almalinux-9.4.z] (JIRA:AlmaLinux-38252)
Isolated cores causing issues on latest AlmaLinux9.4 kernel and not functioning as desired. [almalinux-9.4.z] (JIRA:AlmaLinux-38595)
[ice] Add automatic VF reset on Tx MDD events [almalinux-9.4.z] (JIRA:AlmaLinux-39083)
[HPEMC AlmaLinux 9.4 REGRESSION] turbostat: turbostat broken on 10+ sockets. [almalinux-9.4.z] (JIRA:AlmaLinux-34953)
bnx2x: fix crashes in PCI error handling, resource leaks [almalinux-9.4.z] (JIRA:AlmaLinux-43272)

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

References

URL

Type

	https://access.redhat.com/errata/RHSA-2024:4349	ADVISORY
	https://access.redhat.com/security/cve/CVE-2021-47400	REPORT
	https://access.redhat.com/security/cve/CVE-2023-52626	REPORT
	https://access.redhat.com/security/cve/CVE-2023-52667	REPORT
	https://access.redhat.com/security/cve/CVE-2024-26801	REPORT
	https://access.redhat.com/security/cve/CVE-2024-26974	REPORT
	https://access.redhat.com/security/cve/CVE-2024-27393	REPORT
	https://access.redhat.com/security/cve/CVE-2024-35870	REPORT
	https://access.redhat.com/security/cve/CVE-2024-35960	REPORT
	https://bugzilla.redhat.com/2271680	REPORT
	https://bugzilla.redhat.com/2273429	REPORT
	https://bugzilla.redhat.com/2278354	REPORT
	https://bugzilla.redhat.com/2280745	REPORT
	https://bugzilla.redhat.com/2281350	REPORT
	https://bugzilla.redhat.com/2281740	REPORT
	https://bugzilla.redhat.com/2281920	REPORT
	https://bugzilla.redhat.com/2282336	REPORT
	https://errata.almalinux.org/9/ALSA-2024-4349.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: net/mlx5e: Fix operation precedence bug in port timestamping napi_poll context (CVE-2023-52626)\n  * kernel: Bluetooth: Avoid potential use-after-free in hci_error_reset (CVE-2024-26801)\n  * kernel: crypto: qat - resolve race condition during AER recovery (CVE-2024-26974)\n  * kernel: xen-netfront: Add missing skb_mark_for_recycle (CVE-2024-27393)\n  * kernel: net/mlx5e: fix a potential double-free in fs_any_create_groups (CVE-2023-52667)\n  * kernel: smb: client: fix UAF in smb2_reconnect_server() (CVE-2024-35870)\n  * kernel: net/mlx5: Properly link new fs rules into the tree (CVE-2024-35960)\n  * kernel: net: hns3: do not allow call hns3_nic_net_open repeatedly (CVE-2021-47400)\n\n\nBug Fix(es):  \n\n  * cifs - kernel panic with cifs_put_smb_ses (JIRA:AlmaLinux-28943)\n  * BUG: unable to handle page fault for address: ff16bf752f593ff8 [almalinux-9.4.z] (JIRA:AlmaLinux-35672)\n  * [HPE 9.4 Bug] Request merge of AMD address translation library patch series [almalinux-9.4.z] (JIRA:AlmaLinux-36220)\n  * [AlmaLinux9] kernel BUG at lib/list_debug.c:51! [almalinux-9.4.z] (JIRA:AlmaLinux-36687)\n  * ice: DPLL-related fixes [almalinux-9.4.z] (JIRA:AlmaLinux-36716)\n  * CNB95: net/sched: update TC core to upstream v6.8 [almalinux-9.4.z] (JIRA:AlmaLinux-37641)\n  * IPv6: SR: backport fixes from upstream [almalinux-9.4.z] (JIRA:AlmaLinux-37669)\n  * [RFE] Backport tmpfs noswap mount option [almalinux-9.4.z] (JIRA:AlmaLinux-38252)\n  * Isolated cores causing issues on latest AlmaLinux9.4 kernel and not functioning as desired. [almalinux-9.4.z] (JIRA:AlmaLinux-38595)\n  * [ice] Add automatic VF reset on Tx MDD events [almalinux-9.4.z] (JIRA:AlmaLinux-39083)\n  * [HPEMC AlmaLinux 9.4 REGRESSION] turbostat: turbostat broken on 10+ sockets. [almalinux-9.4.z] (JIRA:AlmaLinux-34953)\n  * bnx2x: fix crashes in PCI error handling, resource leaks [almalinux-9.4.z] (JIRA:AlmaLinux-43272)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer the CVE page(s) listed in the References section.\n",
  "id": "ALSA-2024:4349",
  "modified": "2024-11-03T22:17:33Z",
  "published": "2024-07-08T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2024:4349"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2021-47400"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2023-52626"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2023-52667"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2024-26801"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2024-26974"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2024-27393"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2024-35870"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2024-35960"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2271680"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2273429"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2278354"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2280745"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2281350"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2281740"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2281920"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2282336"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/9/ALSA-2024-4349.html"
    }
  ],
  "related": [
    "CVE-2023-52626",
    "CVE-2024-26801",
    "CVE-2024-26974",
    "CVE-2024-27393",
    "CVE-2023-52667",
    "CVE-2024-35870",
    "CVE-2024-35960",
    "CVE-2021-47400"
  ],
  "summary": "Moderate: kernel security and bug fix update"
}

CVE-2021-47400 (GCVE-0-2021-47400)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:03 – Updated: 2026-08-05 08:47

Title

net: hns3: do not allow call hns3_nic_net_open repeatedly

Summary

In the Linux kernel, the following vulnerability has been resolved: net: hns3: do not allow call hns3_nic_net_open repeatedly hns3_nic_net_open() is not allowed to called repeatly, but there is no checking for this. When doing device reset and setup tc concurrently, there is a small oppotunity to call hns3_nic_net_open repeatedly, and cause kernel bug by calling napi_enable twice. The calltrace information is like below: [ 3078.222780] ------------[ cut here ]------------ [ 3078.230255] kernel BUG at net/core/dev.c:6991! [ 3078.236224] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP [ 3078.243431] Modules linked in: hns3 hclgevf hclge hnae3 vfio_iommu_type1 vfio_pci vfio_virqfd vfio pv680_mii(O) [ 3078.258880] CPU: 0 PID: 295 Comm: kworker/u8:5 Tainted: G O 5.14.0-rc4+ #1 [ 3078.269102] Hardware name: , BIOS KpxxxFPGA 1P B600 V181 08/12/2021 [ 3078.276801] Workqueue: hclge hclge_service_task [hclge] [ 3078.288774] pstate: 60400009 (nZCv daif +PAN -UAO -TCO BTYPE=--) [ 3078.296168] pc : napi_enable+0x80/0x84 tc qdisc sho[w 3d0e7v8 .e3t0h218 79] lr : hns3_nic_net_open+0x138/0x510 [hns3] [ 3078.314771] sp : ffff8000108abb20 [ 3078.319099] x29: ffff8000108abb20 x28: 0000000000000000 x27: ffff0820a8490300 [ 3078.329121] x26: 0000000000000001 x25: ffff08209cfc6200 x24: 0000000000000000 [ 3078.339044] x23: ffff0820a8490300 x22: ffff08209cd76000 x21: ffff0820abfe3880 [ 3078.349018] x20: 0000000000000000 x19: ffff08209cd76900 x18: 0000000000000000 [ 3078.358620] x17: 0000000000000000 x16: ffffc816e1727a50 x15: 0000ffff8f4ff930 [ 3078.368895] x14: 0000000000000000 x13: 0000000000000000 x12: 0000259e9dbeb6b4 [ 3078.377987] x11: 0096a8f7e764eb40 x10: 634615ad28d3eab5 x9 : ffffc816ad8885b8 [ 3078.387091] x8 : ffff08209cfc6fb8 x7 : ffff0820ac0da058 x6 : ffff0820a8490344 [ 3078.396356] x5 : 0000000000000140 x4 : 0000000000000003 x3 : ffff08209cd76938 [ 3078.405365] x2 : 0000000000000000 x1 : 0000000000000010 x0 : ffff0820abfe38a0 [ 3078.414657] Call trace: [ 3078.418517] napi_enable+0x80/0x84 [ 3078.424626] hns3_reset_notify_up_enet+0x78/0xd0 [hns3] [ 3078.433469] hns3_reset_notify+0x64/0x80 [hns3] [ 3078.441430] hclge_notify_client+0x68/0xb0 [hclge] [ 3078.450511] hclge_reset_rebuild+0x524/0x884 [hclge] [ 3078.458879] hclge_reset_service_task+0x3c4/0x680 [hclge] [ 3078.467470] hclge_service_task+0xb0/0xb54 [hclge] [ 3078.475675] process_one_work+0x1dc/0x48c [ 3078.481888] worker_thread+0x15c/0x464 [ 3078.487104] kthread+0x160/0x170 [ 3078.492479] ret_from_fork+0x10/0x18 [ 3078.498785] Code: c8027c81 35ffffa2 d50323bf d65f03c0 (d4210000) [ 3078.506889] ---[ end trace 8ebe0340a1b0fb44 ]--- Once hns3_nic_net_open() is excute success, the flag HNS3_NIC_STATE_DOWN will be cleared. So add checking for this flag, directly return when HNS3_NIC_STATE_DOWN is no set.

Severity

7.8 (High)


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

4 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-05-28 18:26 UTC

CWE

CWE-noinfo Not enough information

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/5a31d4e73ada80224…
https://git.kernel.org/stable/c/f8ba689cb69523144…
https://git.kernel.org/stable/c/3dac38bdce7932901…
https://git.kernel.org/stable/c/5b09e88e1bf7fe865…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e888402789b9db5de4fcda361331d66dbf0cd9fd , < 5a31d4e73ada8022427b69b10fd1f01a6a8d4b3d (git) Affected: e888402789b9db5de4fcda361331d66dbf0cd9fd , < f8ba689cb69523144d10606096ef686002dd7285 (git) Affected: e888402789b9db5de4fcda361331d66dbf0cd9fd , < 3dac38bdce7932901b9f0b71c62331852c809e61 (git) Affected: e888402789b9db5de4fcda361331d66dbf0cd9fd , < 5b09e88e1bf7fe86540fab4b5f3eece8abead39e (git)
Linux	Linux	Affected: 5.0 Unaffected: 0 , < 5.0 (semver) Unaffected: 5.4.151 , ≤ 5.4.* (semver) Unaffected: 5.10.71 , ≤ 5.10.* (semver) Unaffected: 5.14.10 , ≤ 5.14.* (semver) Unaffected: 5.15 , ≤ * (original_commit_for_fix)

Show details on NVD website

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hns3: do not allow call hns3_nic_net_open repeatedly\n\nhns3_nic_net_open() is not allowed to called repeatly, but there\nis no checking for this. When doing device reset and setup tc\nconcurrently, there is a small oppotunity to call hns3_nic_net_open\nrepeatedly, and cause kernel bug by calling napi_enable twice.\n\nThe calltrace information is like below:\n[ 3078.222780] ------------[ cut here ]------------\n[ 3078.230255] kernel BUG at net/core/dev.c:6991!\n[ 3078.236224] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP\n[ 3078.243431] Modules linked in: hns3 hclgevf hclge hnae3 vfio_iommu_type1 vfio_pci vfio_virqfd vfio pv680_mii(O)\n[ 3078.258880] CPU: 0 PID: 295 Comm: kworker/u8:5 Tainted: G           O      5.14.0-rc4+ #1\n[ 3078.269102] Hardware name:  , BIOS KpxxxFPGA 1P B600 V181 08/12/2021\n[ 3078.276801] Workqueue: hclge hclge_service_task [hclge]\n[ 3078.288774] pstate: 60400009 (nZCv daif +PAN -UAO -TCO BTYPE=--)\n[ 3078.296168] pc : napi_enable+0x80/0x84\ntc qdisc sho[w  3d0e7v8 .e3t0h218 79] lr : hns3_nic_net_open+0x138/0x510 [hns3]\n\n[ 3078.314771] sp : ffff8000108abb20\n[ 3078.319099] x29: ffff8000108abb20 x28: 0000000000000000 x27: ffff0820a8490300\n[ 3078.329121] x26: 0000000000000001 x25: ffff08209cfc6200 x24: 0000000000000000\n[ 3078.339044] x23: ffff0820a8490300 x22: ffff08209cd76000 x21: ffff0820abfe3880\n[ 3078.349018] x20: 0000000000000000 x19: ffff08209cd76900 x18: 0000000000000000\n[ 3078.358620] x17: 0000000000000000 x16: ffffc816e1727a50 x15: 0000ffff8f4ff930\n[ 3078.368895] x14: 0000000000000000 x13: 0000000000000000 x12: 0000259e9dbeb6b4\n[ 3078.377987] x11: 0096a8f7e764eb40 x10: 634615ad28d3eab5 x9 : ffffc816ad8885b8\n[ 3078.387091] x8 : ffff08209cfc6fb8 x7 : ffff0820ac0da058 x6 : ffff0820a8490344\n[ 3078.396356] x5 : 0000000000000140 x4 : 0000000000000003 x3 : ffff08209cd76938\n[ 3078.405365] x2 : 0000000000000000 x1 : 0000000000000010 x0 : ffff0820abfe38a0\n[ 3078.414657] Call trace:\n[ 3078.418517]  napi_enable+0x80/0x84\n[ 3078.424626]  hns3_reset_notify_up_enet+0x78/0xd0 [hns3]\n[ 3078.433469]  hns3_reset_notify+0x64/0x80 [hns3]\n[ 3078.441430]  hclge_notify_client+0x68/0xb0 [hclge]\n[ 3078.450511]  hclge_reset_rebuild+0x524/0x884 [hclge]\n[ 3078.458879]  hclge_reset_service_task+0x3c4/0x680 [hclge]\n[ 3078.467470]  hclge_service_task+0xb0/0xb54 [hclge]\n[ 3078.475675]  process_one_work+0x1dc/0x48c\n[ 3078.481888]  worker_thread+0x15c/0x464\n[ 3078.487104]  kthread+0x160/0x170\n[ 3078.492479]  ret_from_fork+0x10/0x18\n[ 3078.498785] Code: c8027c81 35ffffa2 d50323bf d65f03c0 (d4210000)\n[ 3078.506889] ---[ end trace 8ebe0340a1b0fb44 ]---\n\nOnce hns3_nic_net_open() is excute success, the flag\nHNS3_NIC_STATE_DOWN will be cleared. So add checking for this\nflag, directly return when HNS3_NIC_STATE_DOWN is no set."
        }
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            "baseScore": 7.8,
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              "value": "AV:L - Exploitation requires local netlink/ioctl access to the hns3 PF (tc mqprio via ndo_setup_tc and/or ethtool reset), not remotely delivered packets or adjacent-network protocols.\nAC:L - An attacker with CAP_NET_ADMIN can trigger both sides of the race (ethtool --reset schedules hclge_reset_rebuild, which drops rtnl between phases, while concurrently running tc mqprio setup_tc) and retry until the window is hit.\nPR:L - Triggering setup_tc and ethtool reset requires CAP_NET_ADMIN in the netns that owns the hns3 PF; that capability is obtainable via user namespaces when the device is present in that netns, so this is Low rather than High.\nUI:N - The attacker directly issues the reset and tc configuration operations; no separate victim action is required.\nS:U - Impact is confined to the host kernel that owns the hns3 driver; there is no VM/IOMMU/sandbox boundary crossing.\nC:H - The second hns3_nic_net_open runs hns3_nic_reset_all_ring/hns3_clear_tx_ring on rings that are already live, freeing in-flight skbs/DMA buffers while NAPI/Tx may still reference them, yielding a UAF-class disclosure primitive.\nI:H - The same live-ring clear/reuse before the duplicate napi_enable enables double-free/UAF of descriptor buffers and skbs, which is exploitable for integrity compromise and control-flow hijacking.\nA:H - The duplicate napi_enable path hits BUG_ON(!NAPI_STATE_SCHED) in net/core/dev.c, producing a kernel BUG/oops and denial of service."
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CVE-2023-52626 (GCVE-0-2023-52626)

Vulnerability from cvelistv5 – Published: 2024-03-26 17:49 – Updated: 2026-05-23 15:26

Title

net/mlx5e: Fix operation precedence bug in port timestamping napi_poll context

Summary

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix operation precedence bug in port timestamping napi_poll context Indirection (*) is of lower precedence than postfix increment (++). Logic in napi_poll context would cause an out-of-bound read by first increment the pointer address by byte address space and then dereference the value. Rather, the intended logic was to dereference first and then increment the underlying value.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 15:54 UTC

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/40e0d0746390c5b0c…
https://git.kernel.org/stable/c/33cdeae8c6fb58cc4…
https://git.kernel.org/stable/c/3876638b2c7ebb2c9…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e5d30f7da35720060299483e65fc372980a82dfb , < 40e0d0746390c5b0c31144f4f1688d72f3f8d790 (git) Affected: 92214be5979c0961a471b7eaaaeacab41bdf456c , < 33cdeae8c6fb58cc445f859b67c014dc9f60b4e0 (git) Affected: 92214be5979c0961a471b7eaaaeacab41bdf456c , < 3876638b2c7ebb2c9d181de1191db0de8cac143a (git) Affected: 42b11d1293e5a0f932c0b6e891b2c7bae57b839d (git) Affected: 6.6.3 , < 6.6.15 (semver) Affected: 6.5.13 , < 6.6 (semver)
Linux	Linux	Affected: 6.7 Unaffected: 0 , < 6.7 (semver) Unaffected: 6.6.15 , ≤ 6.6.* (semver) Unaffected: 6.7.3 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix)

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CVE-2023-52667 (GCVE-0-2023-52667)

Vulnerability from cvelistv5 – Published: 2024-05-17 14:01 – Updated: 2026-08-05 09:10

Title

net/mlx5e: fix a potential double-free in fs_any_create_groups

Summary

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: fix a potential double-free in fs_any_create_groups When kcalloc() for ft->g succeeds but kvzalloc() for in fails, fs_any_create_groups() will free ft->g. However, its caller fs_any_create_table() will free ft->g again through calling mlx5e_destroy_flow_table(), which will lead to a double-free. Fix this by setting ft->g to NULL in fs_any_create_groups().

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: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 15:42 UTC

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/72a729868592752b5…
https://git.kernel.org/stable/c/b2fa86b2aceb4bc9a…
https://git.kernel.org/stable/c/2897c981ee63e1be5…
https://git.kernel.org/stable/c/65a4ade8a6d205979…
https://git.kernel.org/stable/c/aef855df7e1bbd5aa…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6 , < 72a729868592752b5a294d27453da264106983b1 (git) Affected: 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6 , < b2fa86b2aceb4bc9ada51cea90f61546d7512cbe (git) Affected: 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6 , < 2897c981ee63e1be5e530b1042484626a10b26d8 (git) Affected: 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6 , < 65a4ade8a6d205979292e88beeb6a626ddbd4779 (git) Affected: 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6 , < aef855df7e1bbd5aa4484851561211500b22707e (git)
Linux	Linux	Affected: 5.13 Unaffected: 0 , < 5.13 (semver) Unaffected: 5.15.149 , ≤ 5.15.* (semver) Unaffected: 6.1.76 , ≤ 6.1.* (semver) Unaffected: 6.6.15 , ≤ 6.6.* (semver) Unaffected: 6.7.3 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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CVE-2024-26801 (GCVE-0-2024-26801)

Vulnerability from cvelistv5 – Published: 2024-04-04 08:20 – Updated: 2026-08-05 11:27

Title

Bluetooth: Avoid potential use-after-free in hci_error_reset

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Avoid potential use-after-free in hci_error_reset While handling the HCI_EV_HARDWARE_ERROR event, if the underlying BT controller is not responding, the GPIO reset mechanism would free the hci_dev and lead to a use-after-free in hci_error_reset. Here's the call trace observed on a ChromeOS device with Intel AX201: queue_work_on+0x3e/0x6c __hci_cmd_sync_sk+0x2ee/0x4c0 [bluetooth <HASH:3b4a6>] ? init_wait_entry+0x31/0x31 __hci_cmd_sync+0x16/0x20 [bluetooth <HASH:3b4a 6>] hci_error_reset+0x4f/0xa4 [bluetooth <HASH:3b4a 6>] process_one_work+0x1d8/0x33f worker_thread+0x21b/0x373 kthread+0x13a/0x152 ? pr_cont_work+0x54/0x54 ? kthread_blkcg+0x31/0x31 ret_from_fork+0x1f/0x30 This patch holds the reference count on the hci_dev while processing a HCI_EV_HARDWARE_ERROR event to avoid potential crash.

Severity

8.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-15 19:27 UTC

Assigner

Linux mitre root

References

10 references

URL	Tags
https://git.kernel.org/stable/c/e0b278650f07acf2e…
https://git.kernel.org/stable/c/98fb98fd37e42fd4c…
https://git.kernel.org/stable/c/6dd0a9dfa99f8990a…
https://git.kernel.org/stable/c/da4569d450b193e39…
https://git.kernel.org/stable/c/45085686b9559bfbe…
https://git.kernel.org/stable/c/2ab9a19d896f5a0dd…
https://git.kernel.org/stable/c/dd594cdc24f2e48da…
https://git.kernel.org/stable/c/2449007d3f73b2842…
https://lists.debian.org/debian-lts-announce/2024…	x_transferred
https://lists.debian.org/debian-lts-announce/2024…	x_transferred

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: c7741d16a57cbf97eebe53f27e8216b1ff20e20c , < e0b278650f07acf2e0932149183458468a731c03 (git) Affected: c7741d16a57cbf97eebe53f27e8216b1ff20e20c , < 98fb98fd37e42fd4ce13ff657ea64503e24b6090 (git) Affected: c7741d16a57cbf97eebe53f27e8216b1ff20e20c , < 6dd0a9dfa99f8990a08eb8fdd8e79bee31c7d8e2 (git) Affected: c7741d16a57cbf97eebe53f27e8216b1ff20e20c , < da4569d450b193e39e87119fd316c0291b585d14 (git) Affected: c7741d16a57cbf97eebe53f27e8216b1ff20e20c , < 45085686b9559bfbe3a4f41d3d695a520668f5e1 (git) Affected: c7741d16a57cbf97eebe53f27e8216b1ff20e20c , < 2ab9a19d896f5a0dd386e1f001c5309bc35f433b (git) Affected: c7741d16a57cbf97eebe53f27e8216b1ff20e20c , < dd594cdc24f2e48dab441732e6dfcafd6b0711d1 (git) Affected: c7741d16a57cbf97eebe53f27e8216b1ff20e20c , < 2449007d3f73b2842c9734f45f0aadb522daf592 (git)
Linux	Linux	Affected: 4.0 Unaffected: 0 , < 4.0 (semver) Unaffected: 4.19.309 , ≤ 4.19.* (semver) Unaffected: 5.4.271 , ≤ 5.4.* (semver) Unaffected: 5.10.212 , ≤ 5.10.* (semver) Unaffected: 5.15.151 , ≤ 5.15.* (semver) Unaffected: 6.1.81 , ≤ 6.1.* (semver) Unaffected: 6.6.21 , ≤ 6.6.* (semver) Unaffected: 6.7.9 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix)

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              "value": "AV:A - The `HCI_EV_HARDWARE_ERROR` event that queues `hci_error_reset` is emitted by the Bluetooth controller, and an attacker within Bluetooth radio range can induce a controller firmware exception (the well-documented BrakTooth-class malformed-LMP faults) to generate it while simultaneously leaving the controller unresponsive, which is the exact precondition for the reset/unregister race. This is radio-proximity access, not routable network access.\nAC:L - Once the controller is wedged, the sequence is effectively deterministic: `btintel_hw_error()` blocks for two full `HCI_INIT_TIMEOUT` intervals while `hci_cmd_timeout()` counts to five and fires the GPIO reset, so the race window in which `hci_error_reset` runs against `hci_unregister_dev`/`hci_release_dev` is seconds wide and both sides are driven by the same attacker-induced controller failure. The bug was reproducible enough to be observed in the field on shipping ChromeOS/Intel AX201 hardware.\nPR:N - An over-the-air attacker needs no pairing, bonding, authentication, or any account on the target \u2014 malformed link-layer traffic that faults the controller firmware is processed before any credential check. No host-side privileges are involved at all since the triggering event arrives from the controller.\nUI:N - No victim action is required; the hardware error event, the command timeouts, the GPIO reset and the resulting USB disconnect/unregister all occur automatically inside the kernel once the controller faults.\nS:U - The use-after-free corrupts kernel heap memory within the same security authority as the vulnerable code; no VM, hypervisor, or IOMMU boundary is crossed.\nC:H - `hci_release_dev()` frees `hdev-\u003eworkqueue` (and ultimately `kfree(hdev)`) while `hci_error_reset` is still executing, so `queue_work_on()` reads `wq-\u003eflags` and `wq-\u003ecpu_pwq` out of a freed slab object the attacker can groom by reclaiming it, yielding a kernel-memory read primitive and disclosure of adjacent heap contents and pointers.\nI:H - After the freed `workqueue_struct` is reclaimed with attacker-controlled data, `queue_work_on()` performs a list insertion into the pool worklist derived from that freed memory, giving a controlled write primitive suitable for corrupting adjacent kernel objects and hijacking control flow; the stale `hdev` is likewise written through by the continuing close/open sequence.\nA:H - The confirmed use-after-free reliably oopses or panics the kernel (the reported crash in `queue_work_on` from `hci_error_reset`), and the freed/destroyed workqueue also strands the subsequent `destroy_workqueue(hdev-\u003ereq_workqueue)` drain, permanently wedging the Bluetooth stack."
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      "title": "Bluetooth: Avoid potential use-after-free in hci_error_reset",
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    "dateReserved": "2024-02-19T14:20:24.179Z",
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CVE-2024-26974 (GCVE-0-2024-26974)

Vulnerability from cvelistv5 – Published: 2024-05-01 05:20 – Updated: 2026-08-05 11:28

Title

crypto: qat - resolve race condition during AER recovery

Summary

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - resolve race condition during AER recovery During the PCI AER system's error recovery process, the kernel driver may encounter a race condition with freeing the reset_data structure's memory. If the device restart will take more than 10 seconds the function scheduling that restart will exit due to a timeout, and the reset_data structure will be freed. However, this data structure is used for completion notification after the restart is completed, which leads to a UAF bug. This results in a KFENCE bug notice. BUG: KFENCE: use-after-free read in adf_device_reset_worker+0x38/0xa0 [intel_qat] Use-after-free read at 0x00000000bc56fddf (in kfence-#142): adf_device_reset_worker+0x38/0xa0 [intel_qat] process_one_work+0x173/0x340 To resolve this race condition, the memory associated to the container of the work_struct is freed on the worker if the timeout expired, otherwise on the function that schedules the worker. The timeout detection can be done by checking if the caller is still waiting for completion or not by using completion_done() function.

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: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-05-28 17:47 UTC

Assigner

Linux mitre root

References

12 references

URL	Tags
https://git.kernel.org/stable/c/daba62d9eeddcc5b1…
https://git.kernel.org/stable/c/8e81cd58aee14a470…
https://git.kernel.org/stable/c/d03092550f526a79c…
https://git.kernel.org/stable/c/4ae5a97781ce7d6ec…
https://git.kernel.org/stable/c/226fc408c5fcd23cc…
https://git.kernel.org/stable/c/8a5a7611ccc7b1fba…
https://git.kernel.org/stable/c/0c2cf5142bfb634c0…
https://git.kernel.org/stable/c/bb279ead42263e9fb…
https://git.kernel.org/stable/c/7d42e097607c4d246…
https://lists.debian.org/debian-lts-announce/2024…	x_transferred
https://lists.debian.org/debian-lts-announce/2024…	x_transferred
https://cert-portal.siemens.com/productcert/html/…

Impacted products

3 products

Vendor	Product	Version
Linux	Linux	Affected: d8cba25d2c68992a6e7c1d329b690a9ebe01167d , < daba62d9eeddcc5b1081be7d348ca836c83c59d7 (git) Affected: d8cba25d2c68992a6e7c1d329b690a9ebe01167d , < 8e81cd58aee14a470891733181a47d123193ba81 (git) Affected: d8cba25d2c68992a6e7c1d329b690a9ebe01167d , < d03092550f526a79cf1ade7f0dfa74906f39eb71 (git) Affected: d8cba25d2c68992a6e7c1d329b690a9ebe01167d , < 4ae5a97781ce7d6ecc9c7055396535815b64ca4f (git) Affected: d8cba25d2c68992a6e7c1d329b690a9ebe01167d , < 226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7 (git) Affected: d8cba25d2c68992a6e7c1d329b690a9ebe01167d , < 8a5a7611ccc7b1fba8d933a9f22a2e76859d94dc (git) Affected: d8cba25d2c68992a6e7c1d329b690a9ebe01167d , < 0c2cf5142bfb634c0ef0a1a69cdf37950747d0be (git) Affected: d8cba25d2c68992a6e7c1d329b690a9ebe01167d , < bb279ead42263e9fb09480f02a4247b2c287d828 (git) Affected: d8cba25d2c68992a6e7c1d329b690a9ebe01167d , < 7d42e097607c4d246d99225bf2b195b6167a210c (git)
Linux	Linux	Affected: 3.17 Unaffected: 0 , < 3.17 (semver) Unaffected: 4.19.312 , ≤ 4.19.* (semver) Unaffected: 5.4.274 , ≤ 5.4.* (semver) Unaffected: 5.10.215 , ≤ 5.10.* (semver) Unaffected: 5.15.154 , ≤ 5.15.* (semver) Unaffected: 6.1.84 , ≤ 6.1.* (semver) Unaffected: 6.6.24 , ≤ 6.6.* (semver) Unaffected: 6.7.12 , ≤ 6.7.* (semver) Unaffected: 6.8.3 , ≤ 6.8.* (semver) Unaffected: 6.9 , ≤ * (original_commit_for_fix)
Siemens	SIMATIC S7-1500 TM MFP - GNU/Linux subsystem	Affected: 0 , < * (custom)

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              "lang": "en",
              "value": "AV:L - The vulnerable `adf_slot_reset()` runs in the host kernel\u0027s PCIe AER/EEH error-recovery machinery for the local QAT accelerator; there is no network- or adjacent-network-facing path to `drivers/crypto/intel/qat/qat_common/adf_aer.c`. The attacker must be local to the host \u2014 a co-resident guest/VFIO holder of a QAT function on the same PCIe hierarchy, or a local actor able to drive AER recovery.\nAC:L - The attacker controls the triggering event (the PCIe error that starts recovery), and the losing side of the race is not a narrow window \u2014 a device that has just taken an uncorrectable error leaves MMIO reads returning all-ones, so `adf_dev_up()` runs every poll loop to its full timeout (5 s admin-message poll plus 3 s firmware-auth waits) and deterministically exceeds the caller\u0027s 10-second `wait_for_completion_timeout`. The UAF was observed occurring naturally in the field via KFENCE, confirming the window is routinely hit.\nPR:L - SR-IOV VF assignment is the mainstream QAT deployment model, and a tenant guest or VFIO-granted user holding a QAT function can make it signal an uncorrectable error; `pci_walk_bridge()` then broadcasts `slot_reset` across the port\u0027s subordinate bus, invoking the host PF\u0027s `adf_slot_reset()` \u2014 no host root needed. Unprivileged local users can additionally drive arbitrary traffic through the device via AF_ALG, which dispatches to the QAT skcipher/aead implementations.\nUI:N - The reset worker and the timing-out caller both run entirely within kernel context once the PCIe error is signalled; no victim action, mount, or file open is required.\nS:U - The freed `adf_reset_dev_data` and the corruption caused by the stale `complete()` are both host kernel heap objects under the same security authority; no hypervisor, IOMMU, or sandbox boundary is itself bypassed by the flaw.\nC:H - The worker performs a use-after-free read of `reset_data-\u003emode` and dereferences `x-\u003ewait.task_list` out of the freed ~80-byte `kmalloc-96` object, a cache an attacker can reliably reoccupy with sprayed objects (msg_msg, xattr, etc.), turning the stale reference into a controlled read of kernel memory.\nI:H - `complete()` on the freed object writes into it \u2014 taking a raw spinlock, incrementing `x-\u003edone`, and running `swake_up_locked()` over an attacker-groomed wait list, yielding `wake_up_process()` on a controlled task pointer; because `ADF_DEV_RESET_ASYNC == 0`, a zeroed reallocation of the slot also produces a second `kfree()` on the already-freed pointer, a classic double-free route to an arbitrary write.\nA:H - The use-after-free and potential double free corrupt the slab allocator, producing KASAN/KFENCE splats and kernel panics (immediate under `panic_on_warn`), and the reset path additionally hits `WARN(1, \"QAT: device restart failed. Device is unusable\")`, leaving the crypto accelerator dead."
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          "url": "https://git.kernel.org/stable/c/8e81cd58aee14a470891733181a47d123193ba81"
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          "url": "https://git.kernel.org/stable/c/d03092550f526a79cf1ade7f0dfa74906f39eb71"
        },
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          "url": "https://git.kernel.org/stable/c/4ae5a97781ce7d6ecc9c7055396535815b64ca4f"
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CVE-2024-27393 (GCVE-0-2024-27393)

Vulnerability from cvelistv5 – Published: 2024-05-09 16:37 – Updated: 2026-08-05 11:29

Title

xen-netfront: Add missing skb_mark_for_recycle

Summary

In the Linux kernel, the following vulnerability has been resolved: xen-netfront: Add missing skb_mark_for_recycle Notice that skb_mark_for_recycle() is introduced later than fixes tag in commit 6a5bcd84e886 ("page_pool: Allow drivers to hint on SKB recycling"). It is believed that fixes tag were missing a call to page_pool_release_page() between v5.9 to v5.14, after which is should have used skb_mark_for_recycle(). Since v6.6 the call page_pool_release_page() were removed (in commit 535b9c61bdef ("net: page_pool: hide page_pool_release_page()") and remaining callers converted (in commit 6bfef2ec0172 ("Merge branch 'net-page_pool-remove-page_pool_release_page'")). This leak became visible in v6.8 via commit dba1b8a7ab68 ("mm/page_pool: catch page_pool memory leaks").

Severity

7.5 (High)


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

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-05-31 18:36 UTC

CWE

CWE-noinfo Not enough information

Assigner

Linux mitre root

References

7 references

URL	Tags
https://git.kernel.org/stable/c/4143b9479caa29bb2…
https://git.kernel.org/stable/c/7c1250796b6c262b5…
https://git.kernel.org/stable/c/27aa3e4b3088426b7…
https://git.kernel.org/stable/c/c8b7b2f158d9d4fb8…
https://git.kernel.org/stable/c/037965402a010898d…
http://xenbits.xen.org/xsa/advisory-457.html	x_transferred
http://www.openwall.com/lists/oss-security/2024/05/08/4	x_transferred

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c , < 4143b9479caa29bb2380f3620dcbe16ea84eb3b1 (git) Affected: 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c , < 7c1250796b6c262b505a46192f4716b8c6a6a8c6 (git) Affected: 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c , < 27aa3e4b3088426b7e34584274ad45b5afaf7629 (git) Affected: 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c , < c8b7b2f158d9d4fb89cd2f68244af154f7549bb4 (git) Affected: 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c , < 037965402a010898d34f4e35327d22c0a95cd51f (git)
Linux	Linux	Affected: 5.9 Unaffected: 0 , < 5.9 (semver) Unaffected: 5.15.154 , ≤ 5.15.* (semver) Unaffected: 6.1.85 , ≤ 6.1.* (semver) Unaffected: 6.6.26 , ≤ 6.6.* (semver) Unaffected: 6.8.5 , ≤ 6.8.* (semver) Unaffected: 6.9 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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CVE-2024-35870 (GCVE-0-2024-35870)

Vulnerability from cvelistv5 – Published: 2024-05-19 08:34 – Updated: 2026-08-05 11:30

Title

smb: client: fix UAF in smb2_reconnect_server()

Summary

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix UAF in smb2_reconnect_server() The UAF bug is due to smb2_reconnect_server() accessing a session that is already being teared down by another thread that is executing __cifs_put_smb_ses(). This can happen when (a) the client has connection to the server but no session or (b) another thread ends up setting @ses->ses_status again to something different than SES_EXITING. To fix this, we need to make sure to unconditionally set @ses->ses_status to SES_EXITING and prevent any other threads from setting a new status while we're still tearing it down. The following can be reproduced by adding some delay to right after the ipc is freed in __cifs_put_smb_ses() - which will give smb2_reconnect_server() worker a chance to run and then accessing @ses->ipc: kinit ... mount.cifs //srv/share /mnt/1 -o sec=krb5,nohandlecache,echo_interval=10 [disconnect srv] ls /mnt/1 &>/dev/null sleep 30 kdestroy [reconnect srv] sleep 10 umount /mnt/1 ... CIFS: VFS: Verify user has a krb5 ticket and keyutils is installed CIFS: VFS: \\srv Send error in SessSetup = -126 CIFS: VFS: Verify user has a krb5 ticket and keyutils is installed CIFS: VFS: \\srv Send error in SessSetup = -126 general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6b6b: 0000 [#1] PREEMPT SMP NOPTI CPU: 3 PID: 50 Comm: kworker/3:1 Not tainted 6.9.0-rc2 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc39 04/01/2014 Workqueue: cifsiod smb2_reconnect_server [cifs] RIP: 0010:__list_del_entry_valid_or_report+0x33/0xf0 Code: 4f 08 48 85 d2 74 42 48 85 c9 74 59 48 b8 00 01 00 00 00 00 ad de 48 39 c2 74 61 48 b8 22 01 00 00 00 00 74 69 <48> 8b 01 48 39 f8 75 7b 48 8b 72 08 48 39 c6 0f 85 88 00 00 00 b8 RSP: 0018:ffffc900001bfd70 EFLAGS: 00010a83 RAX: dead000000000122 RBX: ffff88810da53838 RCX: 6b6b6b6b6b6b6b6b RDX: 6b6b6b6b6b6b6b6b RSI: ffffffffc02f6878 RDI: ffff88810da53800 RBP: ffff88810da53800 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88810c064000 R13: 0000000000000001 R14: ffff88810c064000 R15: ffff8881039cc000 FS: 0000000000000000(0000) GS:ffff888157c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe3728b1000 CR3: 000000010caa4000 CR4: 0000000000750ef0 PKRU: 55555554 Call Trace: <TASK> ? die_addr+0x36/0x90 ? exc_general_protection+0x1c1/0x3f0 ? asm_exc_general_protection+0x26/0x30 ? __list_del_entry_valid_or_report+0x33/0xf0 __cifs_put_smb_ses+0x1ae/0x500 [cifs] smb2_reconnect_server+0x4ed/0x710 [cifs] process_one_work+0x205/0x6b0 worker_thread+0x191/0x360 ? __pfx_worker_thread+0x10/0x10 kthread+0xe2/0x110 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x34/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK>

Severity

9.8 (Critical)


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

4.4 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-06-17 17:38 UTC

CWE

CWE-416 - Use After Free

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/755fe68cd4b59e1d2…
https://git.kernel.org/stable/c/6202996a1c1887e83…
https://git.kernel.org/stable/c/45f2beda1f1bc3d96…
https://git.kernel.org/stable/c/24a9799aa8efecd0e…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: b327a717e506980399464e304e363f94f95eb7a1 , < 755fe68cd4b59e1d2a2dd3286177fd4404f57fed (git) Affected: b327a717e506980399464e304e363f94f95eb7a1 , < 6202996a1c1887e83d0b3b0fcd86d0e5e6910ea0 (git) Affected: b327a717e506980399464e304e363f94f95eb7a1 , < 45f2beda1f1bc3d962ec07db1ccc3197c25499a5 (git) Affected: b327a717e506980399464e304e363f94f95eb7a1 , < 24a9799aa8efecd0eb55a75e35f9d8e6400063aa (git)
Linux	Linux	Affected: 4.16 Unaffected: 0 , < 4.16 (semver) Unaffected: 6.1.121 , ≤ 6.1.* (semver) Unaffected: 6.6.29 , ≤ 6.6.* (semver) Unaffected: 6.8.5 , ≤ 6.8.* (semver) Unaffected: 6.9 , ≤ * (original_commit_for_fix)

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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix UAF in smb2_reconnect_server()\n\nThe UAF bug is due to smb2_reconnect_server() accessing a session that\nis already being teared down by another thread that is executing\n__cifs_put_smb_ses().  This can happen when (a) the client has\nconnection to the server but no session or (b) another thread ends up\nsetting @ses-\u003eses_status again to something different than\nSES_EXITING.\n\nTo fix this, we need to make sure to unconditionally set\n@ses-\u003eses_status to SES_EXITING and prevent any other threads from\nsetting a new status while we\u0027re still tearing it down.\n\nThe following can be reproduced by adding some delay to right after\nthe ipc is freed in __cifs_put_smb_ses() - which will give\nsmb2_reconnect_server() worker a chance to run and then accessing\n@ses-\u003eipc:\n\nkinit ...\nmount.cifs //srv/share /mnt/1 -o sec=krb5,nohandlecache,echo_interval=10\n[disconnect srv]\nls /mnt/1 \u0026\u003e/dev/null\nsleep 30\nkdestroy\n[reconnect srv]\nsleep 10\numount /mnt/1\n...\nCIFS: VFS: Verify user has a krb5 ticket and keyutils is installed\nCIFS: VFS: \\\\srv Send error in SessSetup = -126\nCIFS: VFS: Verify user has a krb5 ticket and keyutils is installed\nCIFS: VFS: \\\\srv Send error in SessSetup = -126\ngeneral protection fault, probably for non-canonical address\n0x6b6b6b6b6b6b6b6b: 0000 [#1] PREEMPT SMP NOPTI\nCPU: 3 PID: 50 Comm: kworker/3:1 Not tainted 6.9.0-rc2 #1\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc39\n04/01/2014\nWorkqueue: cifsiod smb2_reconnect_server [cifs]\nRIP: 0010:__list_del_entry_valid_or_report+0x33/0xf0\nCode: 4f 08 48 85 d2 74 42 48 85 c9 74 59 48 b8 00 01 00 00 00 00 ad\nde 48 39 c2 74 61 48 b8 22 01 00 00 00 00 74 69 \u003c48\u003e 8b 01 48 39 f8 75\n7b 48 8b 72 08 48 39 c6 0f 85 88 00 00 00 b8\nRSP: 0018:ffffc900001bfd70 EFLAGS: 00010a83\nRAX: dead000000000122 RBX: ffff88810da53838 RCX: 6b6b6b6b6b6b6b6b\nRDX: 6b6b6b6b6b6b6b6b RSI: ffffffffc02f6878 RDI: ffff88810da53800\nRBP: ffff88810da53800 R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000001 R12: ffff88810c064000\nR13: 0000000000000001 R14: ffff88810c064000 R15: ffff8881039cc000\nFS: 0000000000000000(0000) GS:ffff888157c00000(0000)\nknlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007fe3728b1000 CR3: 000000010caa4000 CR4: 0000000000750ef0\nPKRU: 55555554\nCall Trace:\n \u003cTASK\u003e\n ? die_addr+0x36/0x90\n ? exc_general_protection+0x1c1/0x3f0\n ? asm_exc_general_protection+0x26/0x30\n ? __list_del_entry_valid_or_report+0x33/0xf0\n __cifs_put_smb_ses+0x1ae/0x500 [cifs]\n smb2_reconnect_server+0x4ed/0x710 [cifs]\n process_one_work+0x205/0x6b0\n worker_thread+0x191/0x360\n ? __pfx_worker_thread+0x10/0x10\n kthread+0xe2/0x110\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x34/0x50\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30\n \u003c/TASK\u003e"
        }
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            "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"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The race is driven entirely by remote SMB server behavior \u2014 TCP disconnects, malformed/short responses, decryption failures, or withheld replies all reach `cifs_reconnect()` \u2192 `cifs_mark_tcp_ses_conns_for_reconnect()` from the demultiplex thread, and the freed tcon\u0027s contents are transmitted back over the network. A malicious/compromised SMB server or an on-path attacker against an existing CIFS mount exploits this remotely.\nAC:L - The attacker controls both sides: it triggers reconnect at will (RST/close/malformed frame) and observes the SMB2 LOGOFF request that `__cifs_put_smb_ses()` sends before blocking, giving an explicit on-wire marker for the teardown window, and the reconnect worker self-requeues every 2 s so the race can be retried indefinitely. In scenario (a) \u2014 server accepts TCP but fails SESSION_SETUP \u2014 `SES_EXITING` is never set at all, so no timing win is even required.\nPR:N - The attacker is the remote peer and needs no privileges or account on the victim client; valid SMB credentials are not required, since failed session setup is precisely what drives the vulnerable state.\nUI:N - The attack targets an already-established CIFS mount (fstab/autofs/Kubernetes-mounted shares on servers, NAS-backed embedded and industrial systems); reconnect and session teardown are triggered by the attacker and by background workers with no user action at attack time.\nS:U - Corruption is confined to kernel heap objects within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The freed IPC `cifs_tcon` is re-read and `tcon-\u003etree_name` is sent to the attacker-controlled server in the TREE_CONNECT, leaking reclaimed kernel heap contents directly to the attacker, and the freed `cifs_ses` holds session keys and `auth_key.response`; the UAF read primitive is unbounded.\nI:H - `cifs_smb_ses_inc_refcount()` writes to freed memory and `list_del_init(\u0026ses-\u003esmb_ses_list)` performs a `prev-\u003enext = next` write through pointers read from a freed, sprayable kmalloc object \u2014 a write-what-where primitive suitable for control-flow hijack.\nA:H - The bug reproducibly causes a general protection fault in the cifsiod kworker (`__list_del_entry_valid_or_report` on 0x6b6b6b6b poison), killing the worker and panicking the system on `panic_on_oops` configurations."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:30:32.619Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/755fe68cd4b59e1d2a2dd3286177fd4404f57fed"
        },
        {
          "url": "https://git.kernel.org/stable/c/6202996a1c1887e83d0b3b0fcd86d0e5e6910ea0"
        },
        {
          "url": "https://git.kernel.org/stable/c/45f2beda1f1bc3d962ec07db1ccc3197c25499a5"
        },
        {
          "url": "https://git.kernel.org/stable/c/24a9799aa8efecd0eb55a75e35f9d8e6400063aa"
        }
      ],
      "title": "smb: client: fix UAF in smb2_reconnect_server()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-35870",
    "datePublished": "2024-05-19T08:34:28.419Z",
    "dateReserved": "2024-05-17T13:50:33.108Z",
    "dateUpdated": "2026-08-05T11:30:32.619Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2024-35960 (GCVE-0-2024-35960)

Vulnerability from cvelistv5 – Published: 2024-05-20 09:41 – Updated: 2026-05-12 11:53

Title

net/mlx5: Properly link new fs rules into the tree

Summary

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Properly link new fs rules into the tree Previously, add_rule_fg would only add newly created rules from the handle into the tree when they had a refcount of 1. On the other hand, create_flow_handle tries hard to find and reference already existing identical rules instead of creating new ones. These two behaviors can result in a situation where create_flow_handle 1) creates a new rule and references it, then 2) in a subsequent step during the same handle creation references it again, resulting in a rule with a refcount of 2 that is not linked into the tree, will have a NULL parent and root and will result in a crash when the flow group is deleted because del_sw_hw_rule, invoked on rule deletion, assumes node->parent is != NULL. This happened in the wild, due to another bug related to incorrect handling of duplicate pkt_reformat ids, which lead to the code in create_flow_handle incorrectly referencing a just-added rule in the same flow handle, resulting in the problem described above. Full details are at [1]. This patch changes add_rule_fg to add new rules without parents into the tree, properly initializing them and avoiding the crash. This makes it more consistent with how rules are added to an FTE in create_flow_handle.

Severity

9.1 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-16 21:09 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

Linux mitre root

References

12 references

URL	Tags
https://git.kernel.org/stable/c/de0139719cdda8280…
https://git.kernel.org/stable/c/1263b0b26077b1183…
https://git.kernel.org/stable/c/3d90ca9145f6b97b3…
https://git.kernel.org/stable/c/7aaee12b804c5e037…
https://git.kernel.org/stable/c/2e8dc5cffc844dacf…
https://git.kernel.org/stable/c/5cf5337ef701830f1…
https://git.kernel.org/stable/c/adf67a03af39095f0…
https://git.kernel.org/stable/c/7c6782ad4911cbee8…
https://lists.debian.org/debian-lts-announce/2024…	x_transferred
https://lists.debian.org/debian-lts-announce/2024…	x_transferred
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

23 products

Vendor	Product	Version
Linux	Linux	Affected: 74491de937125d0c98c9b9c9208b4105717a3caa , < de0139719cdda82806a47580ca0df06fc85e0bd2 (git) Affected: 74491de937125d0c98c9b9c9208b4105717a3caa , < 1263b0b26077b1183c3c45a0a2479573a351d423 (git) Affected: 74491de937125d0c98c9b9c9208b4105717a3caa , < 3d90ca9145f6b97b38d0c2b6b30f6ca6af9c1801 (git) Affected: 74491de937125d0c98c9b9c9208b4105717a3caa , < 7aaee12b804c5e0374e7b132b6ec2158ff33dd64 (git) Affected: 74491de937125d0c98c9b9c9208b4105717a3caa , < 2e8dc5cffc844dacfa79f056dea88002312f253f (git) Affected: 74491de937125d0c98c9b9c9208b4105717a3caa , < 5cf5337ef701830f173b4eec00a4f984adeb57a0 (git) Affected: 74491de937125d0c98c9b9c9208b4105717a3caa , < adf67a03af39095f05d82050f15813d6f700159d (git) Affected: 74491de937125d0c98c9b9c9208b4105717a3caa , < 7c6782ad4911cbee874e85630226ed389ff2e453 (git)
Linux	Linux	Affected: 4.10 Unaffected: 0 , < 4.10 (semver) Unaffected: 4.19.313 , ≤ 4.19.* (semver) Unaffected: 5.4.275 , ≤ 5.4.* (semver) Unaffected: 5.10.216 , ≤ 5.10.* (semver) Unaffected: 5.15.156 , ≤ 5.15.* (semver) Unaffected: 6.1.87 , ≤ 6.1.* (semver) Unaffected: 6.6.28 , ≤ 6.6.* (semver) Unaffected: 6.8.7 , ≤ 6.8.* (semver) Unaffected: 6.9 , ≤ * (original_commit_for_fix)
linux	linux_kernel	Affected: 74491de93712 , < de0139719cdd (custom) cpe:2.3:o:linux:linux_kernel:-:::::::*
linux	linux_kernel	Affected: 74491de93712 , < 3d90ca9145f6 (custom) cpe:2.3:o:linux:linux_kernel:-:::::::*
linux	linux_kernel	Affected: 74491de93712 , < 7aaee12b804c (custom) cpe:2.3:o:linux:linux_kernel:-:::::::*
linux	linux_kernel	Affected: 74491de93712 , < 2e8dc5cffc84 (custom) cpe:2.3:o:linux:linux_kernel:-:::::::*
linux	linux_kernel	Affected: 74491de93712 , < 5cf5337ef701 (custom) cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	Affected: 74491de93712 , < adf67a03af39 (custom) cpe:2.3:o:linux:linux_kernel:-:::::::*
linux	linux_kernel	Affected: 74491de93712 , < 7c6782ad4911 (custom) cpe:2.3:o:linux:linux_kernel:-:::::::*
linux	linux_kernel	Affected: 4.10 cpe:2.3:o:linux:linux_kernel:-:::::::*
linux	linux_kernel	Unaffected: 0 , < 4.10 (custom) cpe:2.3:o:linux:linux_kernel:-:::::::*
linux	linux_kernel	Unaffected: 4.19.313 , ≤ 4.20 (custom) cpe:2.3:o:linux:linux_kernel:-:::::::*
linux	linux_kernel	Unaffected: 0 , ≤ 5.5 (custom) cpe:2.3:o:linux:linux_kernel:-:::::::*
linux	linux_kernel	Unaffected: 5.10.216 , ≤ 5.11 (custom) cpe:2.3:o:linux:linux_kernel:-:::::::*
linux	linux_kernel	Unaffected: 5.15.156 , ≤ 5.16 (custom) cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	Unaffected: 6.1.87 , ≤ 6.2 (custom) cpe:2.3:o:linux:linux_kernel:-:::::::*
linux	linux_kernel	Unaffected: 6.6.28 , ≤ 6.7 (custom) cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	Unaffected: 6.8.7 , ≤ 6.9 (custom) cpe:2.3:o:linux:linux_kernel:-:::::::*
linux	linux_kernel	Unaffected: 6.9 cpe:2.3:o:linux:linux_kernel:-:::::::*
Siemens	RUGGEDCOM RST2428P	Affected: 0 , < V3.1 (custom)
Siemens	SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family	Unaffected: 0 , < * (custom)
Siemens	SCALANCE XCM-/XRM-/XCH-/XRH-300 family	Affected: 0 , < V3.1 (custom)
Siemens	SIMATIC S7-1500 TM MFP - GNU/Linux subsystem	Affected: 0 , < * (custom)

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                  "vulnerable": true
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: Properly link new fs rules into the tree\n\nPreviously, add_rule_fg would only add newly created rules from the\nhandle into the tree when they had a refcount of 1. On the other hand,\ncreate_flow_handle tries hard to find and reference already existing\nidentical rules instead of creating new ones.\n\nThese two behaviors can result in a situation where create_flow_handle\n1) creates a new rule and references it, then\n2) in a subsequent step during the same handle creation references it\n   again,\nresulting in a rule with a refcount of 2 that is not linked into the\ntree, will have a NULL parent and root and will result in a crash when\nthe flow group is deleted because del_sw_hw_rule, invoked on rule\ndeletion, assumes node-\u003eparent is != NULL.\n\nThis happened in the wild, due to another bug related to incorrect\nhandling of duplicate pkt_reformat ids, which lead to the code in\ncreate_flow_handle incorrectly referencing a just-added rule in the same\nflow handle, resulting in the problem described above. Full details are\nat [1].\n\nThis patch changes add_rule_fg to add new rules without parents into\nthe tree, properly initializing them and avoiding the crash. This makes\nit more consistent with how rules are added to an FTE in\ncreate_flow_handle."
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      "providerMetadata": {
        "dateUpdated": "2026-05-11T20:14:32.050Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/de0139719cdda82806a47580ca0df06fc85e0bd2"
        },
        {
          "url": "https://git.kernel.org/stable/c/1263b0b26077b1183c3c45a0a2479573a351d423"
        },
        {
          "url": "https://git.kernel.org/stable/c/3d90ca9145f6b97b38d0c2b6b30f6ca6af9c1801"
        },
        {
          "url": "https://git.kernel.org/stable/c/7aaee12b804c5e0374e7b132b6ec2158ff33dd64"
        },
        {
          "url": "https://git.kernel.org/stable/c/2e8dc5cffc844dacfa79f056dea88002312f253f"
        },
        {
          "url": "https://git.kernel.org/stable/c/5cf5337ef701830f173b4eec00a4f984adeb57a0"
        },
        {
          "url": "https://git.kernel.org/stable/c/adf67a03af39095f05d82050f15813d6f700159d"
        },
        {
          "url": "https://git.kernel.org/stable/c/7c6782ad4911cbee874e85630226ed389ff2e453"
        }
      ],
      "title": "net/mlx5: Properly link new fs rules into the tree",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-35960",
    "datePublished": "2024-05-20T09:41:51.900Z",
    "dateReserved": "2024-05-17T13:50:33.137Z",
    "dateUpdated": "2026-05-12T11:53:13.263Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

ALSA-2024:4349

CVE-2021-47400 (GCVE-0-2021-47400)

CVE-2023-52626 (GCVE-0-2023-52626)

CVE-2023-52667 (GCVE-0-2023-52667)

CVE-2024-26801 (GCVE-0-2024-26801)

CVE-2024-26974 (GCVE-0-2024-26974)

CVE-2024-27393 (GCVE-0-2024-27393)

CVE-2024-35870 (GCVE-0-2024-35870)

CVE-2024-35960 (GCVE-0-2024-35960)

Tags

Sightings

Nomenclature

Related by attack behaviour