Improper Check or Handling of Exceptional Conditions in Linux kernel - CVE-2026-92517
Published: September 18, 2026
Vulnerability identifier: #VU151002
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-92517
CWE-ID: CWE-703
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to disclose sensitive information.
The vulnerability exists due to improper handling of exceptional conditions in the RISC-V BPF JIT compiler's arena load_acquire handling when executing a BPF program containing a faulting PROBE_ATOMIC load_acquire. A local user can trigger the fault and leak a stale register value through a map to disclose sensitive information.
Affected software
Linux kernel
How to mitigate CVE-2026-92517
Install security update from vendor's repository.