CVE-2026-90032 Linux Kernel usbtv - Use After Free

Linux kernel media usbtv contains a use-after-free vulnerability caused by premature freeing of struct usbtv during USB disconnect, letting attackers cause memory corruption, exploit requires open ALSA PCM file during disconnect.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.15% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Use After Free
Impact
Use After Free, Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
16 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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