CVE-2021-47502 (GCVE-0-2021-47502)

Vulnerability from cvelistv5 – Published: 2024-05-24 15:01 – Updated: 2025-05-04 07:12
VLAI?
Title
ASoC: codecs: wcd934x: handle channel mappping list correctly
Summary
In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: wcd934x: handle channel mappping list correctly Currently each channel is added as list to dai channel list, however there is danger of adding same channel to multiple dai channel list which endups corrupting the other list where its already added. This patch ensures that the channel is actually free before adding to the dai channel list and also ensures that the channel is on the list before deleting it. This check was missing previously, and we did not hit this issue as we were testing very simple usecases with sequence of amixer commands.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: dd9eb19b567303e4b92747dcfb5deedb182af111 , < 1089dac26c6b4b833323ae6c0ceab29fb30ede72 (git)
Affected: dd9eb19b567303e4b92747dcfb5deedb182af111 , < 339ffb5b56005582aacc860524d2d208604049d1 (git)
Affected: dd9eb19b567303e4b92747dcfb5deedb182af111 , < 23ba28616d3063bd4c4953598ed5e439ca891101 (git)
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    Linux Linux Affected: 5.6
Unaffected: 0 , < 5.6 (semver)
Unaffected: 5.10.85 , ≤ 5.10.* (semver)
Unaffected: 5.15.8 , ≤ 5.15.* (semver)
Unaffected: 5.16 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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