CVE-2026-23133: Linux kernel · wifi: ath10k: fix dma_free_coherent() pointer
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in fc8da65f9fe1bc6802f8240b342cfff4f5c7e841 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 11:54 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- 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, 2026-06-10.
- Patch
- Available – fixed in fc8da65f9fe1bc6802f8240b342cfff4f5c7e841, e2dda298ef809aa201ea7c0904c4d064f6c497cb, b0ad924332a96550a84b8c0ae5483e7042d65fa9 +4
Exploitation evidence
Disclosed: evidence found.
CVE published 14 Feb 2026
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.
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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Description
In the Linux kernel, the following vulnerability has been resolved: wifi: ath10k: 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
- git.kernel.org/stable/c/e2dda298ef809aa201ea7c0904c4d064f6c497cb (opens in a new tab)
- git.kernel.org/stable/c/fc8da65f9fe1bc6802f8240b342cfff4f5c7e841 (opens in a new tab)
- git.kernel.org/stable/c/b0ad924332a96550a84b8c0ae5483e7042d65fa9 (opens in a new tab)
- git.kernel.org/stable/c/1928851334ecfd6e0d663121ab69ac639d4217a6 (opens in a new tab)
- git.kernel.org/stable/c/5d6fa4d2c9799c09389588da5118a72d97d87e92 (opens in a new tab)
- git.kernel.org/stable/c/07f363f305793baecad41816f73056252f3df61e (opens in a new tab)
- git.kernel.org/stable/c/9282a1e171ad8d2205067e8ec3bbe4e3cef4f29f (opens in a new tab)