Improper Check or Handling of Exceptional Conditions in Linux kernel - CVE-2026-92517

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

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.

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-aws (Ubuntu package)
linux-gcp (Ubuntu package)
linux-oracle (Ubuntu package)
linux-ibm (Ubuntu package)
linux-hwe-7.0 (Ubuntu package)
linux-oem-7.0 (Ubuntu package)

Install security update from vendor's repository.

linux (Ubuntu package) - update to 7.0.0-42.42
linux-aws (Ubuntu package) - update to 7.0.0-1016.17
linux-gcp (Ubuntu package) - update to 7.0.0-1016.18
linux-oracle (Ubuntu package) - update to 7.0.0-1015.16
linux-ibm (Ubuntu package) - update to 7.0.0-1017.17
linux-hwe-7.0 (Ubuntu package) - update to 7.0.0-42.42~24.04.1
linux-oem-7.0 (Ubuntu package) - update to 7.0.0-1017.17

• https://git.kernel.org/stable/c/08fe2eaa609180c1baeb76c2629a9c82263b0427
• https://git.kernel.org/stable/c/26d9496c826586338d1b8c27edfec4a19a89f462
• https://git.kernel.org/stable/c/5eb8921371c6fd117d4a328b6053dfda38707df8

• Improper Check or Handling of Exceptional Conditions in Linux kernel riscv net
• Ubuntu update for linux-oem-7.0
• Ubuntu update for linux, linux-aws, linux-gcp and more