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CVE-2023-0266 is a race-condition use-after-free vulnerability in the Linux kernel ALSA PCM control-element path. The compat control-element read and write ioctl handling lacks required locking around control-element access. In particular, the read-write semaphore must be held within snd_ctl_elem_read so that an element cannot be freed concurrently with access through the control ioctls. The resulting stale-object access can be exploited by a local attacker operating as the system user.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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20 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.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.