Bug 2464629 (CVE-2026-43058) - CVE-2026-43058 kernel: media: vidtv: fix pass-by-value structs causing MSAN warnings
Summary: CVE-2026-43058 kernel: media: vidtv: fix pass-by-value structs causing MSAN w...
Keywords:
Status: NEW
Alias: CVE-2026-43058
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-02 07:01 UTC by OSIDB Bzimport
Modified: 2026-05-04 07:19 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-05-02 07:01:28 UTC
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.


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