Description
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_uac1_legacy: remove broken string configfs attributes The UAC1_STR_ATTRIBUTE macro defines configfs show/store handlers for the fn_play, fn_cap, and fn_cntl string options. The store function contains an inverted null check on the kstrndup() return value. This means every write attempt returns -ENOMEM on success and dereferences a NULL pointer on allocation failure. The attributes have been broken and unused for many years. Remove the UAC1_STR_ATTRIBUTE macro and the three attributes it generated. The internal defaults (FILE_PCM_PLAYBACK, FILE_PCM_CAPTURE, FILE_CONTROL) set in f_audio_alloc_inst() are unaffected.
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
0854611a19ae4dfa56569e6f640017a1d2dd3312 to < 745adfe6c337f3d5d7737d57529d14a208151b45affected0854611a19ae4dfa56569e6f640017a1d2dd3312 to < 6351ba62778f72dc4f6bc18bfa99e618829cff0daffected0854611a19ae4dfa56569e6f640017a1d2dd3312 to < 021b58ac3e58cffa68ed9585ff492a19e98414f6affected0854611a19ae4dfa56569e6f640017a1d2dd3312 to < fd43eae7d539ea7cfc7c9f0d3f0eaa890415e8a7affected0854611a19ae4dfa56569e6f640017a1d2dd3312 to < 8b9335aec93975bb9186d63993a5a610e5066ffcaffected0854611a19ae4dfa56569e6f640017a1d2dd3312 to < 2ed25c9d4400cf90d9201657963a231c27a5ea57affected0854611a19ae4dfa56569e6f640017a1d2dd3312 to < 977659adb341f6e30fb00dcf183f63f29df879e2affected0854611a19ae4dfa56569e6f640017a1d2dd3312 to < 590d74ec8f488e06b9f1c0f8f0941f45531f3a55affected
Linux Linux
Default version status: affected
3.18affected0 to < 3.18unaffected5.10.270 to ≤ 5.10.*unaffected5.15.221 to ≤ 5.15.*unaffected6.1.188 to ≤ 6.1.*unaffected6.6.157 to ≤ 6.6.*unaffected6.12.110 to ≤ 6.12.*unaffected6.18.52 to ≤ 6.18.*unaffected7.2.6 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/745adfe6c337f3d5d7737d57529d14a208151b45 ↗
- https://git.kernel.org/stable/c/6351ba62778f72dc4f6bc18bfa99e618829cff0d ↗
- https://git.kernel.org/stable/c/021b58ac3e58cffa68ed9585ff492a19e98414f6 ↗
- https://git.kernel.org/stable/c/fd43eae7d539ea7cfc7c9f0d3f0eaa890415e8a7 ↗
- https://git.kernel.org/stable/c/8b9335aec93975bb9186d63993a5a610e5066ffc ↗
- https://git.kernel.org/stable/c/2ed25c9d4400cf90d9201657963a231c27a5ea57 ↗
- https://git.kernel.org/stable/c/977659adb341f6e30fb00dcf183f63f29df879e2 ↗
- https://git.kernel.org/stable/c/590d74ec8f488e06b9f1c0f8f0941f45531f3a55 ↗