ASoC: amd: acp-sdw-legacy: Bound DAI link iteration

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Summary

CVECVE-2026-74333
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:22:34 UTC
Updated2026-08-15 06:22:34 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ASoC: amd: acp-sdw-legacy: Bound DAI link iteration create_sdw_dailinks() walks soc_dais until it finds an entry with initialised cleared, but soc_dais is allocated with exactly num_ends entries. If all entries are initialised, the loop reads past the end of the array. This was reported by KASAN: BUG: KASAN: slab-out-of-bounds in mc_probe+0x26b3/0x2774 [snd_acp_sdw_legacy_mach] Read of size 1 Pass the allocated entry count to create_sdw_dailinks() and stop before reading past the array.

Risk And Classification

EPSS: 0.001660000 probability, percentile 0.062620000 (date 2026-08-15)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 2981d9b0789c44b7375e7d599caf71bd843afc9e 1279bdab5fa1f28c168e54215db506e87c6fac1e git Not specified
CNA Linux Linux affected 2981d9b0789c44b7375e7d599caf71bd843afc9e 0230471eef5902207516851dcd47c559571dded2 git Not specified
CNA Linux Linux affected 2981d9b0789c44b7375e7d599caf71bd843afc9e d49ecdf327cc91062d2f80996a163cf65fda1e60 git Not specified
CNA Linux Linux affected 6.13 Not specified
CNA Linux Linux unaffected 6.13 semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/1279bdab5fa1f28c168e54215db506e87c6fac1e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0230471eef5902207516851dcd47c559571dded2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d49ecdf327cc91062d2f80996a163cf65fda1e60 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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