CVE-2026-98367 Linux Kernel RDMA/siw - Use After Free

Linux kernel RDMA/siw contains a use-after-free caused by improper locking and cleanup in siw_accept and siw_qp_modify functions, letting concurrent attackers cause memory corruption, exploit requires concurrent access to QP state.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.13% 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: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 siw_qp_modify and siw_accept locking issue.

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

← All CVEs