CVE-2026-80953 Linux kernel i3c master adi - Race Condition

Linux kernel i3c master adi contains a race condition caused by initializing the lock after enabling interrupts in adi_i3c_master_probe(), letting interrupts access uninitialized lock, exploit requires interrupt triggering after IRQ unmasking.

CVSS base score 8.4 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.19% 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 initializing locks before enabling interrupts.

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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