CVE-2026-46157

HIGH 7.8

ALSA: pcm: oss: Fix data race at accessing runtime.oss.trigger

CVSS Score

7.8

EPSS Score

0.0%

EPSS Percentile

0th

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().

Vendor	linux
Product	linux
Ecosystems	Linux Kernel
Industries	Technology
Published	May 28, 2026
Last Updated	May 30, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Linux / Linux

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 49f9d048845be874df7997e4b1ce662de450c4b6 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ac3e9b55b7da6f0be51720bd330a0edc1a8b61f1 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6b01c1bc9a4748ab37548a700a8aaff910e298e6 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 901ac0ff15edf9503162e2cf6579bd11a30f1ed4

Linux / Linux

2.6.12

References

NVD ↗ CVE.org ↗ EPSS Data ↗

git.kernel.org: https://git.kernel.org/stable/c/49f9d048845be874df7997e4b1ce662de450c4b6 git.kernel.org: https://git.kernel.org/stable/c/ac3e9b55b7da6f0be51720bd330a0edc1a8b61f1 git.kernel.org: https://git.kernel.org/stable/c/6b01c1bc9a4748ab37548a700a8aaff910e298e6 git.kernel.org: https://git.kernel.org/stable/c/901ac0ff15edf9503162e2cf6579bd11a30f1ed4