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CVE-2025-71270 PUBLISHED

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Enable exception fixup for specific ADE subcode This patch allows the LoongArch BPF JIT to handle recoverable memory access errors generated by BPF_PROBE_MEM* instructions. When a BPF program performs memory access operations, the instructions it executes may trigger ADEM exceptions. The kernel’s built-in BPF exception table mechanism (EX_TYPE_BPF) will generate corresponding exception fixup entries in the JIT compilation phase; however, the architecture-specific trap handling function needs to proactively call the common fixup routine to achieve exception recovery. do_ade(): fix EX_TYPE_BPF memory access exceptions for BPF programs, ensure safe execution. Relevant test cases: illegal address access tests in module_attach and subprogs_extable of selftests/bpf.

EPSS 0.02% · 6.2th percentile

Risk Scores

EPSS Score
0.02%
6.2th percentile

Affected Products

VendorProductVersions
linuxlinux_kernel6.2, 6.2, 6.2
LinuxLinuxdbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c, dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c, dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c

Timeline

References

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