Improper Check or Handling of Exceptional Conditions in Linux kernel - CVE-2026-93270
Published: September 25, 2026
Vulnerability identifier: #VU152123
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93270
CWE-ID: CWE-703
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper handling of the BPF_MOV64_PERCPU_REG instruction in the BPF interpreter when executing a BPF program containing a BPF_ADDR_PERCPU instruction through interpreter fallback. A local user can trigger execution of the affected instruction to cause a kernel page fault and cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-93270
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3