Red Hat: CVE-2023-0266: Move rwsem lock inside snd_ctl_elem_read to prevent UAF (Multiple Advisories)
4
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
01/30/2023
03/16/2023
03/16/2023
03/13/2024
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
Solution(s)
- redhat-upgrade-kernel
- redhat-upgrade-kernel-rt
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