CVE-2026-89599 Linux Kernel - Race Condition

Linux kernel contains a race condition caused by initializing a mutex lock after registering the display in fbdev omapfb panel-dsi-cm, letting concurrent consumers cause undefined behavior, exploit requires concurrent access to display callbacks.

CVSS base score 8.4 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.14% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Race Condition
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
11 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version with the fix for mutex initialization before display registration.

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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