vulnerability
Red Hat: CVE-2023-0266: Move rwsem lock inside snd_ctl_elem_read to prevent UAF (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | Jan 30, 2023 | Mar 16, 2023 | Sep 26, 2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Jan 30, 2023
Added
Mar 16, 2023
Modified
Sep 26, 2025
Description
A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit 56b88b50565cd8b946a2d00b0c83927b7ebb055e
Solutions
redhat-upgrade-kernelredhat-upgrade-kernel-rt
References
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