Integer underflow in Linux kernel - CVE-2026-97413
Published: September 25, 2026
Vulnerability identifier: #VU152061
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97413
CWE-ID: CWE-191
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause an out-of-bounds memory access.
The vulnerability exists due to integer underflow in the rtrs-srv process_read and process_write functions when processing a network-supplied RDMA message with usr_len greater than off. A remote attacker can send a crafted RDMA message with usr_len greater than off to cause an out-of-bounds memory access.
Affected software
Linux kernel
How to mitigate CVE-2026-97413
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3