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CVE-2026-31581 is a use-after-free vulnerability in the Linux kernel ALSA 6fire USB audio driver. The chip structure is embedded in the sound card's private data allocated by snd_card_new(). During disconnect handling, usb6fire_chip_abort() calls snd_card_free_when_closed(), which synchronously frees the card and embedded chip when no file handles remain open. A subsequent chip->card = NULL assignment writes to freed slab memory. The fix moves card lifecycle management into usb6fire_chip_disconnect() and ensures that card freeing occurs after all accesses to the chip structure.
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20 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A use-after-free vulnerability during disconnect in the Linux kernel's ALSA 6fire driver, affecting Red Hat Enterprise Linux 9 kernel-rt packages. The plugin identifies this CVE as its CVSS score source and lists a local, low-privilege attack vector with high confidentiality, integrity, and availability impacts.
Listed in a Red Hat kernel-package security advisory; the specific flaw and its impact are not described.
A use-after-free vulnerability in the Linux kernel ALSA 6fire driver during device disconnection. A patched kernel is available through RHSA-2026:77217, and a reboot is required for the update to take effect.
A use-after-free vulnerability in the Linux kernel ALSA 6fire driver when a device disconnects.
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.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.