ASoC: fsl_micfil: balance mclk enable/disable

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Summary

CVECVE-2026-98093
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-25 11:17:39 UTC
Updated2026-09-25 11:17:39 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ASoC: fsl_micfil: balance mclk enable/disable hw_params() enables mclk unconditionally and hw_free() disables it unconditionally, but the PCM core does not guarantee 1:1 pairing: hw_free() can run without hw_params(), and hw_params() can be called multiple times from the SETUP state. This triggers an "already disabled" WARN() in the first case and leaks an enable reference in the second, leaving the clock ungateable. Guard both sides with the existing mclk_flag, as fsl_sai.c does with mclk_streams.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected b47024dc624bcffb89d238f4a5b490363cea2a1e 470db2026a435b79f7ecb4d65523ea16a99d55d8 git Not specified
CNA Linux Linux affected b47024dc624bcffb89d238f4a5b490363cea2a1e fa1bbe3534499dd89d3b0b941d6dd4ddb70c31b5 git Not specified
CNA Linux Linux affected b47024dc624bcffb89d238f4a5b490363cea2a1e d3dbccfe6afa7b9a6a7ed65cfaa76a47fa050a56 git Not specified
CNA Linux Linux affected 6.13 Not specified
CNA Linux Linux unaffected 6.13 semver Not specified
CNA Linux Linux unaffected 6.18.53 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.7 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/d3dbccfe6afa7b9a6a7ed65cfaa76a47fa050a56 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/fa1bbe3534499dd89d3b0b941d6dd4ddb70c31b5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/470db2026a435b79f7ecb4d65523ea16a99d55d8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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