CVE-2026-80950 Linux Kernel Renesas I3C - Use After Free

Linux kernel Renesas I3C driver contains a use-after-free vulnerability caused by accessing freed memory in the interrupt handler, letting attackers cause system crashes, exploit requires triggering interrupt after timeout.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.17% 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
11 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version with the fix applied.

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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