CVE-2024-27005: Linux kernel · interconnect: Don't access req_list while it's being manipulated
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.8 High · fixed in 6.8.0-1011.12~22.04.1 : patch Linux kernel soon.
Data as of 26 Oct 2026, 12:54 UTC
- 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:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 1 May 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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.
Patches and advisories
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 24.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-ibmpkg:deb/ubuntu/linux-ibm?arch=source&distro=nobleOther threats | Affected
| 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 promptly. The vendor advisory from Ubuntu confirms fixes in updated Linux kernel packages. After applying the update, a system reboot is required to complete remediation. No additional mitigation steps are necessary beyond applying the official kernel updates.
Description
A race condition vulnerability in the Linux kernel's interconnect subsystem was resolved by ensuring proper locking order when accessing the req_list. The issue involved concurrent access to icc_node::req_list protected by separate mutexes, causing potential invalid pointer dereferences. The fix enforces holding the icc_bw_lock mutex before manipulating req_list, preventing race conditions. This vulnerability affects multiple Linux kernel versions prior to 6.8.0-1011.12~22.04.1 and specific older versions. A patch is available, and users should update and reboot to apply the fix.
References
- ubuntu.com/security/CVE-2024-27005 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2024-27005 (opens in a new tab)
- git.kernel.org/linus/de1bf25b6d771abdb52d43546cf57ad775fb68a1 (opens in a new tab)
- git.kernel.org/stable/c/d0d04efa2e367921654b5106cc5c05e3757c2b42 (opens in a new tab)
- git.kernel.org/stable/c/4c65507121ea8e0b47fae6d2049c8688390d46b6 (opens in a new tab)
- git.kernel.org/stable/c/de1bf25b6d771abdb52d43546cf57ad775fb68a1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6893-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6893-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6893-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-6918-1 (opens in a new tab)