Detections
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CVE-2025-71129
medium
Description
In the Linux kernel, the following vulnerability has been resolved: LoongArch: BPF: Sign extend kfunc call arguments The kfunc calls are native calls so they should follow LoongArch calling conventions. Sign extend its arguments properly to avoid kernel panic. This is done by adding a new emit_abi_ext() helper. The emit_abi_ext() helper performs extension in place meaning a value already store in the target register (Note: this is different from the existing sign_extend() helper and thus we can't reuse it).
References
https://git.kernel.org/stable/c/fd43edf357a3a1f5ed1c4bf450b60001c9091c39
https://git.kernel.org/stable/c/3f5a238f24d7b75f9efe324d3539ad388f58536e
https://git.kernel.org/stable/c/321993a874f571a94b5a596f1132f798c663b56e
https://git.kernel.org/stable/c/0d666db731e95890e0eda7ea61bc925fd2be90c6