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VulnerabilityPublished Updated

CVE-2024-27014: Linux kernel · net/mlx5e: Prevent deadlock while disabling aRFS

Affects Linux kernelSource GCVE Database

0

Not known to be exploited · CVSS 5.5 Medium · fixed in 6.8.0-1011.12~22.04.1 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 12:54 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 6.8.0-1011.12~22.04.1, 6.8.0-1010.10~22.04.1, 6.8.0-1009.9~22.04.1 +13
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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. Weaponised: 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 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Ubuntu 24.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-38.38
Fixed in
  • 6.8.0-38.38
Ubuntu 24.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1011.12
Fixed in
  • 6.8.0-1011.12
Ubuntu 24.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1010.10
Fixed in
  • 6.8.0-1010.10
Ubuntu 24.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1010.11
Fixed in
  • 6.8.0-1010.11
Ubuntu 24.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1006.9
Fixed in
  • 6.8.0-1006.9
Ubuntu 24.04 LTSlinux-ibmpkg:deb/ubuntu/linux-ibm?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1008.8
Fixed in
  • 6.8.0-1008.8

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 included in recent Linux kernel updates for linux-azure and other affected kernels. Users should apply the official kernel updates and reboot to remediate this issue. No additional mitigation is required as the fix prevents the deadlock condition by design.

Description

A deadlock vulnerability (CVE-2024-27014) in the Linux kernel's mlx5e network driver was resolved. The issue occurs when disabling adaptive Receive Flow Steering (aRFS) under a state lock, where canceling scheduled aRFS work waits on a handler that tries to reacquire the same lock, causing a deadlock. The fix introduces an aRFS state variable to prevent rule additions when aRFS is disabled. This vulnerability affects multiple linux-azure kernel versions prior to 6.8.0-1011.12~22.04.1 and specific 4.11.x and 4.13.x versions. The CVSS score is 5.5 (medium severity) with impact limited to availability (denial of service). A patch is available and included in recent Linux kernel updates.

References

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