CVE-2026-97583 Linux Kernel - Use After Free

Linux kernel contains a use-after-free vulnerability in AFS caused by improper clearing of stale peer app data after address list changes, letting remote attackers cause memory corruption, exploit requires specific address list refresh conditions.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.41% chance of exploitation in 30 days
View the NVD record ↗

Details

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

Vendor fix

Update to the latest Linux kernel version containing the fix for AFS peer app data handling.

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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