CVE-2026-89893 Linux kernel cx23885 - Use After Free

Linux kernel media cx23885 contains a use-after-free vulnerability caused by improper cancellation of pending work items during CI device teardown, letting attackers cause system instability or denial of service, exploit requires kernel module interaction.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.16% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Use After Free
Impact
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 that cancels pending work before freeing state.

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

← All CVEs