Skip to main content
VulnerabilityPublished Updated

CVE-2024-38662: Linux kernel · bpf: Allow delete from sockmap/sockhash only if update is allowed

Affects Linux kernelSource GCVE Database

0

Not known to be exploited · CVSS 4.7 Medium · fixed in 5.15.0-1069.75~20.04.1 : update Linux kernel when convenient.

Data as of 28 Oct 2026, 11:12 UTC

CVSS 3.1 base score
4.7Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 5.15.0-1069.75~20.04.1, 5.15.0-1072.81~20.04.1, 5.15.0-1068.76~20.04.1 +47
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Jun 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
  • <6.8.0-44.44
Fixed in
  • 6.8.0-44.44
Ubuntu 24.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1015.16
Fixed in
  • 6.8.0-1015.16
Ubuntu 24.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1014.16
Fixed in
  • 6.8.0-1014.16
Ubuntu 24.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1014.16
Fixed in
  • 6.8.0-1014.16
Ubuntu 24.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1010.13
Fixed in
  • 6.8.0-1010.13
Ubuntu 24.04 LTSlinux-ibmpkg:deb/ubuntu/linux-ibm?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1012.12
Fixed in
  • 6.8.0-1012.12

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 has been released in Linux kernel versions 5.15.0-1052.59 and later. Users should update to these fixed kernel versions or newer to remediate the vulnerability. No additional mitigation actions are required beyond applying the official fix.

Description

CVE-2024-38662 is a vulnerability in the Linux kernel's BPF subsystem where deletion operations from sockmap/sockhash maps were allowed without proper update permissions. This flaw could lead to locking rule violations triggered by BPF programs attached to tracepoints. The issue has been fixed by restricting delete operations to only those BPF programs that are permitted to update these map types.

References

Community reviews

Loading reviews…