CVE-2026-43058

critical

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/e3957eb26a3d570aefc6bb184fa8b8a1e9a4e508

https://git.kernel.org/stable/c/be57e52e27c7cbfb400a8f255e475cbcff242baa

https://git.kernel.org/stable/c/6d75a9ec5bdb8cf8382eaf8f8fe831ba7d58a9d4

https://git.kernel.org/stable/c/5f8e73bde67e931468bc2a1860d78d72f0c6ba41

https://git.kernel.org/stable/c/57b01d945ed68cebe486d495dadc4901a96d3aaa

https://git.kernel.org/stable/c/1b2820c8a9887981634020db19f1a2425558b88e

Details

Source: Mitre, NVD

Published: 2026-05-02

Updated: 2026-05-02

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00024