Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix data race at accessing runtime.oss.trigger Currently the runtime.oss.trigger field may be accessed concurrently without protection, which may lead to the data race. And, in this case, it may lead to more severe problem because it's a bit field; as writing the data, it may overwrite other bit fields as well, which confuses the operation completely, as spotted by fuzzing. Fix it by covering runtime.oss.trigger bit fled also with the existing params_lock mutex in both snd_pcm_oss_get_trigger() and snd_pcm_oss_poll().
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
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < c937a494901df8fbfaa5037a5883a7cd44282ea8affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 49f9d048845be874df7997e4b1ce662de450c4b6affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < ac3e9b55b7da6f0be51720bd330a0edc1a8b61f1affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 6b01c1bc9a4748ab37548a700a8aaff910e298e6affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 901ac0ff15edf9503162e2cf6579bd11a30f1ed4affected
Linux Linux
Default version status: affected
2.6.12affected0 to < 2.6.12unaffected6.6.160 to ≤ 6.6.*unaffected6.12.88 to ≤ 6.12.*unaffected6.18.30 to ≤ 6.18.*unaffected7.0.7 to ≤ 7.0.*unaffected7.1 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/c937a494901df8fbfaa5037a5883a7cd44282ea8 ↗
- https://git.kernel.org/stable/c/49f9d048845be874df7997e4b1ce662de450c4b6 ↗
- https://git.kernel.org/stable/c/ac3e9b55b7da6f0be51720bd330a0edc1a8b61f1 ↗
- https://git.kernel.org/stable/c/6b01c1bc9a4748ab37548a700a8aaff910e298e6 ↗
- https://git.kernel.org/stable/c/901ac0ff15edf9503162e2cf6579bd11a30f1ed4 ↗