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CVE PROGRAM SOURCE RECORD5.5 Medium

CVE-2022-50400

staging: greybus: audio_helper: remove unused and wrong debugfs usage

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: staging: greybus: audio_helper: remove unused and wrong debugfs usage In the greybus audio_helper code, the debugfs file for the dapm has the potential to be removed and memory will be leaked. There is also the very real potential for this code to remove ALL debugfs entries from the system, and it seems like this is what will really happen if this code ever runs. This all is very wrong as the greybus audio driver did not create this debugfs file, the sound core did and controls the lifespan of it. So remove all of the debugfs logic from the audio_helper code as there's no way it could be correct. If this really is needed, it can come back with a fixup for the incorrect usage of the debugfs_lookup() call which is what caused this to be noticed at all.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 510e340efe0cbd379cf1ff3490d088c3299749b1 to < d0febad83e29d85bb66e4f5cac0115b022403338affected
  • 510e340efe0cbd379cf1ff3490d088c3299749b1 to < 4dab0d27a4211a27135a6899d6c737e6e0759a11affected
  • 510e340efe0cbd379cf1ff3490d088c3299749b1 to < 5699afbff1fa2972722e863906c0320d55dd4d58affected
  • 510e340efe0cbd379cf1ff3490d088c3299749b1 to < d835fa49d9589a780ff0d001bb7e6323238a4afbaffected
  • 510e340efe0cbd379cf1ff3490d088c3299749b1 to < d517cdeb904ddc0cbebcc959d43596426cac40b0affected

Linux Linux

Default version status: affected

  • 5.9affected
  • 0 to < 5.9unaffected
  • 5.10.150 to ≤ 5.10.*unaffected
  • 5.15.75 to ≤ 5.15.*unaffected
  • 5.19.17 to ≤ 5.19.*unaffected
  • 6.0.3 to ≤ 6.0.*unaffected
  • 6.1 to ≤ *unaffected

References