CVE-2026-43132: Linux kernel · dm-verity: correctly handle dm_bufio_client_create() failure
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in d3e1f1adc8a0289efe2d2cdc90edb8c6ffe0b5ef : update Linux kernel when convenient.
Data as of 6 Nov 2026, 16:04 UTC
Rated Medium 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 d3e1f1adc8a0289efe2d2cdc90edb8c6ffe0b5ef, b154a868a3856fb5216c4f82981d8a503832e095, 6283e49af87a9c121bb01e5a64a7fe5706c210bc +5
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
The vulnerability has been fixed in specific Linux kernel commits. Users should apply the patches or upgrade to a kernel version that includes these fixes to prevent crashes caused by this issue.
Description
A vulnerability in the Linux kernel's dm-verity component causes a crash when dm_bufio_client_create() fails and dm_bufio_client_destroy() is called with an invalid argument. This issue has been fixed in certain commits.
References
- git.kernel.org/stable/c/6283e49af87a9c121bb01e5a64a7fe5706c210bc (opens in a new tab)
- git.kernel.org/stable/c/d3e1f1adc8a0289efe2d2cdc90edb8c6ffe0b5ef (opens in a new tab)
- git.kernel.org/stable/c/5c2217ddb3b7e7ac25f4ebe9061258fc8f1c9167 (opens in a new tab)
- git.kernel.org/stable/c/031f2adc1499b112a39ac316bbab3c80bba16cf2 (opens in a new tab)
- git.kernel.org/stable/c/9b8dc1d327e2928f3da59ced0595d850d31c0936 (opens in a new tab)
- git.kernel.org/stable/c/451cc650e40e8c3222d37877a9e4be0fcaacb9c8 (opens in a new tab)
- git.kernel.org/stable/c/b154a868a3856fb5216c4f82981d8a503832e095 (opens in a new tab)
- git.kernel.org/stable/c/119f4f04186fa4f33ee6bd39af145cdaff1ff17f (opens in a new tab)