CVE-2026-98276 Linux Kernel - Use After Free

Linux kernel contains a use-after-free vulnerability caused by improper locking of sk_flags in sock_gettstamp(), letting attackers cause kernel memory corruption via race conditions, exploit requires concurrent socket operations.

CVSS base score 7.8 /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
Use After Free
Impact
Denial Of Service, Privilege Escalation
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
6 October 2026
Updated
15 October 2026

Vendor fix

Update to Linux kernel version 6.12.95 or later where the socket locking issue is fixed.

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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