VulnerabilityPublished 14 Feb 2026Updated 5 Nov 2026

CVE-2026-23135: Linux kernel · wifi: ath12k: fix dma_free_coherent() pointer

Affects Linux kernelSource CVE Database V5

Compare

Not known to be exploited · fixed in bb97131fbf9b708dd9616ac2bdc793ad102b5c48 : update Linux kernel when convenient.

Data as of 5 Nov 2026, 21:49 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

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, 2026-11-05.

Patch

Available – fixed in bb97131fbf9b708dd9616ac2bdc793ad102b5c48, 24585a13c41ea7253ee59aac74441fb570f5824a, 4846b32be324f4dd3653f38a3f69c049543d52ae +1

Exploitation evidence

Disclosed: evidence found.
CVE published 14 Feb 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 5 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Linux kernel to bb97131fbf9b708dd9616ac2bdc793ad102b5c48, 24585a13c41ea7253ee59aac74441fb570f5824a, 4846b32be324f4dd3653f38a3f69c049543d52ae or 36e0bc5e8b282564906fca636c4ebc99814de4e7.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ d889913205cf7ebda905b1e62c5867ed4e39f6c2, < bb97131fbf9b708dd9616ac2bdc793ad102b5c48	Fixed in bb97131fbf9b708dd9616ac2bdc793ad102b5c48
LinuxLinux	Affected ≥ d889913205cf7ebda905b1e62c5867ed4e39f6c2, < 24585a13c41ea7253ee59aac74441fb570f5824a	Fixed in 24585a13c41ea7253ee59aac74441fb570f5824a
LinuxLinux	Affected ≥ d889913205cf7ebda905b1e62c5867ed4e39f6c2, < 4846b32be324f4dd3653f38a3f69c049543d52ae	Fixed in 4846b32be324f4dd3653f38a3f69c049543d52ae
LinuxLinux	Affected ≥ d889913205cf7ebda905b1e62c5867ed4e39f6c2, < 36e0bc5e8b282564906fca636c4ebc99814de4e7	Fixed in 36e0bc5e8b282564906fca636c4ebc99814de4e7
LinuxLinux	Affected =6.3	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix dma_free_coherent() pointer dma_alloc_coherent() allocates a DMA mapped buffer and stores the addresses in XXX_unaligned fields. Those should be reused when freeing the buffer rather than the aligned addresses.

References

Community reviews

Loading reviews…