CVE-2026-98369 Linux Kernel - Race Condition

Linux kernel contains an RCU usage issue in xfrm_trans_reinject caused by missing rcu_read_lock(), skb_dst_force(), and dev_hold() calls, letting attackers cause race conditions or memory corruption, exploit requires triggering specific packet reinjection via workqueue.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.15% 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:L/UI:N/S:U/C:H/I:H/A:H
Published
6 October 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix for commit 4f4920669d21 and related patches.

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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