Bug 2334552 (CVE-2024-56657)

Summary: CVE-2024-56657 kernel: ALSA: control: Avoid WARN() for symlink errors
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2024-12-27 16:03:07 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ALSA: control: Avoid WARN() for symlink errors

Using WARN() for showing the error of symlink creations don't give
more information than telling that something goes wrong, since the
usual code path is a lregister callback from each control element
creation.  More badly, the use of WARN() rather confuses fuzzer as if
it were serious issues.

This patch downgrades the warning messages to use the normal dev_err()
instead of WARN().  For making it clearer, add the function name to
the prefix, too.
Comment 1 Avinash Hanwate 2024-12-28 02:29:35 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024122750-CVE-2024-56657-4f33@gregkh/T