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VulnerabilityPublished Updated

CVE-2026-43058: Linux kernel · media: vidtv: fix pass-by-value structs causing MSAN warnings

Affects Linux kernelSource GCVE Database

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Not known to be exploited.

Data as of 12 Nov 2026, 00:50 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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 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 11 Nov 2026.

What to do

AI-suggested

A fix has been implemented in the Linux kernel by changing the affected functions to accept structs by const pointer rather than by value. Users should update to the fixed kernel version once available. No additional mitigation actions are indicated.

Description

A vulnerability in the Linux kernel's media subsystem (vidtv) involved functions passing structs by value, which caused Memory Sanitizer (MSAN) warnings due to uninitialized values. The issue was fixed by changing the functions to pass structs by const pointer, preventing stack copies and associated MSAN shadow metadata issues.

References

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