Improper input validation in Linux kernel - CVE-2026-93228
Published: September 25, 2026
Vulnerability identifier: #VU152167
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93228
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause improper processing of malformed RPC-over-RDMA chunks.
The vulnerability exists due to improper input validation in the xdr_check_write_chunk() function when processing Write or Reply chunks with a zero segment count. A remote attacker can send a malformed Write or Reply chunk with a zero segment count to cause improper processing of malformed RPC-over-RDMA chunks.
Affected software
Linux kernel
How to mitigate CVE-2026-93228
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3