CVE-2026-46090 is a use-after-free vulnerability in the Linux kernel ALSA aloop loopback driver. When playback starts with parameters that do not match an active capture stream, loopback_check_format() can stop the capture peer. Although peer lookup occurs while holding cable->lock, snd_pcm_stop() executes after that lock is released. A concurrent close can then remove the capture stream from cable->streams[] and detach or free its runtime while the playback-trigger path retains a stale peer substream pointer. The fix tracks in-flight peer-stop operations per cable and makes free_cable() wait for them before detaching the runtime.
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No public exploit code observed for this vulnerability.
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27 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A CVE-2026-46090 vulnerability addressed by a Unity Linux security update (UTSA-2026-098783). The supplied CVSS vectors characterize it as a local, authenticated issue with high confidentiality, integrity, and availability impact.
A specific vulnerability tracked as CVE-2026-46090 referenced in a Unity Linux local security check advisory.
A Linux kernel ALSA aloop use-after-free vulnerability during format-change stop handling.
A Linux kernel ALSA aloop use-after-free vulnerability during format-change stop.
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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.