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VulnerabilityPublished Updated

CVE-2026-43157: Linux kernel · octeontx2-af: CGX: fix bitmap leaks

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in ccef79af58b43787c25710c9da96651c6ddfe50f : update Linux kernel when convenient.

Data as of 6 Nov 2026, 16:03 UTC

Severity
Low

Rated Low by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch
Available – fixed in ccef79af58b43787c25710c9da96651c6ddfe50f, ccca14bbdcc25829d355b9f4d3249f43dadb71c1, ad8a13a45c5c24d0d32de9a1c3fd58498a675ece +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 May 2026

  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 6 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ e740003874edc13e468d19233f99787bedb4bb8e, < ccef79af58b43787c25710c9da96651c6ddfe50f
Fixed in
  • ccef79af58b43787c25710c9da96651c6ddfe50f
LinuxLinuxAffected
  • ≥ e740003874edc13e468d19233f99787bedb4bb8e, < ccca14bbdcc25829d355b9f4d3249f43dadb71c1
Fixed in
  • ccca14bbdcc25829d355b9f4d3249f43dadb71c1
LinuxLinuxAffected
  • ≥ e740003874edc13e468d19233f99787bedb4bb8e, < ad8a13a45c5c24d0d32de9a1c3fd58498a675ece
Fixed in
  • ad8a13a45c5c24d0d32de9a1c3fd58498a675ece
LinuxLinuxAffected
  • ≥ e740003874edc13e468d19233f99787bedb4bb8e, < 013ac469596a0b8671e62d89c89ae0bd46bbe667
Fixed in
  • 013ac469596a0b8671e62d89c89ae0bd46bbe667
LinuxLinuxAffected
  • ≥ e740003874edc13e468d19233f99787bedb4bb8e, < 6d389382ee655128056fbdab86baad8495ffbf33
Fixed in
  • 6d389382ee655128056fbdab86baad8495ffbf33
LinuxLinuxAffected
  • ≥ e740003874edc13e468d19233f99787bedb4bb8e, < 3def995c4ede842adf509c410e92d09a0cedc965
Fixed in
  • 3def995c4ede842adf509c410e92d09a0cedc965

AI-suggested

A fix is available in the Linux kernel source as indicated by the fixed commit hashes. Users should update to a kernel version that includes these fixes to resolve the memory leak issue.

Description

A memory leak vulnerability in the Linux kernel's octeontx2-af CGX driver was fixed. The RX/TX flow-control bitmaps allocated during initialization were not freed during driver teardown, causing kmemleak warnings when the driver is unbound and rebound.

References

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