APPLIED: [SRU][F][PATCH 0/1] CVE-2021-46926

[Stefan Bader]

On 15.07.24 21:42, Bethany Jamison wrote:
> [Impact]
> 
> 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.
> 
> [Fix]
> 
> Noble:	not affected
> Jammy:	not affected
> Focal: 	Backported - context conflict due to commits 6d2c666 (soundwire:
> 	intel: transition to 3 steps initialization) and 08c2a4b (ALSA:
> 	hda: move Intel SoundWire ACPI scan to dedicated module) which
> 	could not be applied, fix change implemented as given
> Bionic:	not affected
> Xenial: not affected
> Trusty: not affected
> 
> [Test Case]
> 
> Compile and boot tested.
> 
> [Where problems could occur]
> 
> This fix affects those who use Intel SoundWire, an issue with this fix
> would be visible to the user via unpredicted system behavior.
> 
> Libin Yang (1):
>    ALSA: hda: intel-sdw-acpi: harden detection of controller
> 
>   drivers/soundwire/intel_init.c | 5 +++--
>   1 file changed, 3 insertions(+), 2 deletions(-)
> 
Applied to focal:linux/master-next. Thanks.

-Stefan

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