CVE-2025-71270

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The Linux kernel contains an issue related to exception handling within the LoongArch BPF JIT compiler. Specifically, the kernel did not proactively call the common fixup routine to recover from recoverable memory access errors (ADEM exceptions) generated by BPF PROBE MEM* instructions. This impacted the ability to handle exceptions during memory access operations performed by BPF programs. The do ade() function was updated to fix EX TYPE BPF memory access exceptions for BPF programs, ensuring safer execution. Test cases involving illegal address access in module attach and subprogs extable of selftests/bpf were used to validate the fix.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.