Vulnerability 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.
References
- https://git.kernel.org/stable/c/1b2820c8a9887981634020db19f1a2425558b88e
- https://git.kernel.org/stable/c/57b01d945ed68cebe486d495dadc4901a96d3aaa
- https://git.kernel.org/stable/c/5f8e73bde67e931468bc2a1860d78d72f0c6ba41
- https://git.kernel.org/stable/c/6d75a9ec5bdb8cf8382eaf8f8fe831ba7d58a9d4
- https://git.kernel.org/stable/c/be57e52e27c7cbfb400a8f255e475cbcff242baa
- https://git.kernel.org/stable/c/e3957eb26a3d570aefc6bb184fa8b8a1e9a4e508
FAQ
What is CVE-2026-43058?
CVE-2026-43058 is a documented vulnerability. 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 ...
How severe is CVE-2026-43058?
CVSS scoring is not yet available for CVE-2026-43058. Check NVD for updates.
Is there a patch for CVE-2026-43058?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.