CVE-2026-43157: Linux kernel · octeontx2-af: CGX: fix bitmap leaks
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in ccef79af58b43787c25710c9da96651c6ddfe50f : update Linux kernel when convenient.
Data as of 6 Nov 2026, 16:03 UTC
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
Disclosed: evidence found.
CVE published 6 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 6 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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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
- git.kernel.org/stable/c/ad8a13a45c5c24d0d32de9a1c3fd58498a675ece (opens in a new tab)
- git.kernel.org/stable/c/013ac469596a0b8671e62d89c89ae0bd46bbe667 (opens in a new tab)
- git.kernel.org/stable/c/ccef79af58b43787c25710c9da96651c6ddfe50f (opens in a new tab)
- git.kernel.org/stable/c/6d389382ee655128056fbdab86baad8495ffbf33 (opens in a new tab)
- git.kernel.org/stable/c/ccca14bbdcc25829d355b9f4d3249f43dadb71c1 (opens in a new tab)
- git.kernel.org/stable/c/3def995c4ede842adf509c410e92d09a0cedc965 (opens in a new tab)