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VulnerabilityPublished Updated

CVE-2024-26974: Linux kernel · crypto: qat – resolve race condition during AER recovery

Affects Linux kernelSource GCVE Database

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Not known to be exploited · CVSS 7.8 High · fixed in 4.4.0-1143.149 : patch Linux kernel soon.

Data as of 12 Nov 2026, 18:54 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 4.4.0-1143.149, 4.15.0-1188.203~14.04.1, 4.4.0-268.302~14.04.1 +75
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 May 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 12 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Ubuntu Pro Realtime 24.04 LTSlinux-raspi-realtimepkg:deb/ubuntu/linux-raspi-realtime?arch=source&distro=realtime/nobleOther threatsAffected
  • <6.8.0-2002.2
Fixed in
  • 6.8.0-2002.2
Ubuntu 22.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=jammyOther threatsAffected
  • <5.15.0-116.126
Fixed in
  • 5.15.0-116.126
Ubuntu 22.04 LTSlinux-allwinner-5.19pkg:deb/ubuntu/linux-allwinner-5.19?arch=source&distro=jammyOther threatsAffected
  • 5.19.0-1007.7~22.04.1 – 5.19.0-1015.15~22.04.1
8 affected builds
Fixed in–
Ubuntu 22.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=jammyOther threatsAffected
  • <5.15.0-1065.71
Fixed in
  • 5.15.0-1065.71
Ubuntu 22.04 LTSlinux-aws-5.19pkg:deb/ubuntu/linux-aws-5.19?arch=source&distro=jammyOther threatsAffected
  • 5.19.0-1019.20~22.04.1 – 5.19.0-1029.30~22.04.1
10 affected builds
Fixed in–
Ubuntu 22.04 LTSlinux-aws-6.2pkg:deb/ubuntu/linux-aws-6.2?arch=source&distro=jammyOther threatsAffected
  • 6.2.0-1005.5~22.04.1 – 6.2.0-1018.18~22.04.1
14 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A patch is available and should be applied to affected Linux kernel versions. The fix resolves the race condition by adjusting when the reset_data memory is freed during PCI AER recovery. Users should update their kernel to one of the fixed versions listed in the vendor advisories. No additional mitigation steps are indicated beyond applying the official fixes.

Description

CVE-2024-26974 is a use-after-free vulnerability in the Linux kernel's Intel QAT driver during PCI AER error recovery. The flaw arises from a race condition when freeing the reset_data structure if device restart exceeds 10 seconds, leading to potential memory corruption and kernel fault notices. This vulnerability has been assigned a high severity score of 7.8 and affects multiple Linux kernel versions, particularly those used in Ubuntu distributions. A fix is available that changes the timing of memory freeing to prevent the race condition.

References

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