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CVE-2023-0266 is a use-after-free vulnerability in the Linux kernel ALSA PCM control-element handling path. The 32-bit compatibility ioctl handlers for control-element read and write operations did not hold the required read/write semaphore while accessing control elements. A concurrent operation could free a control element after it was located but before it was used. The fix moves rwsem locking into snd_ctl_elem_read so the accessed element remains protected for the duration of the operation.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
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21 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel ALSA PCM use-after-free vulnerability addressed by moving the rwsem lock inside snd_ctl_elem_read.
A use-after-free vulnerability in the Linux kernel ALSA PCM/control-element handling, addressed by moving the rwsem lock within snd_ctl_elem_read in the Red Hat kernel-rt update.
A Linux kernel ALSA PCM use-after-free vulnerability involving snd_ctl_elem_read locking, addressed by the Red Hat Enterprise Linux 9 kpatch-patch security update.
A use-after-free vulnerability in the Linux kernel ALSA PCM/control path, addressed by moving the rwsem lock within snd_ctl_elem_read.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.