Vulnerability 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().
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.12.1, < 6.12.88 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/49f9d048845be874df7997e4b1ce662de450c4b6Patch
- https://git.kernel.org/stable/c/6b01c1bc9a4748ab37548a700a8aaff910e298e6Patch
- https://git.kernel.org/stable/c/901ac0ff15edf9503162e2cf6579bd11a30f1ed4Patch
- https://git.kernel.org/stable/c/ac3e9b55b7da6f0be51720bd330a0edc1a8b61f1Patch
FAQ
What is CVE-2026-46157?
CVE-2026-46157 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 concurrentl...
How severe is CVE-2026-46157?
CVE-2026-46157 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-46157?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.