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LinuxVULNRICHMENT:CVE-2021-46926

HistoryFeb 27, 2024 - 9:43 a.m.

CVE-2021-46926 ALSA: hda: intel-sdw-acpi: harden detection of controller

2024-02-2709:43:56

Linux

github.com

linux kernel

alsa

soundwire

vulnerability

detection

controller

logic change.

AI Score

6.6

Confidence

Low

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

In the Linux kernel, the following vulnerability has been resolved:

ALSA: hda: intel-sdw-acpi: harden detection of controller

The existing code currently sets a pointer to an ACPI handle before
checking that it’s actually a SoundWire controller. This can lead to
issues where the graph walk continues and eventually fails, but the
pointer was set already.

This patch changes the logic so that the information provided to
the caller is set when a controller is found.

References

git.kernel.org/stable/c/385f287f9853da402d94278e59f594501c1d1dad

git.kernel.org/stable/c/cce476954401e3421afafb25bbaa926050688b1d