CVE-2025-37893

In the Linux kernel, the following vulnerability has been resolved: LoongArch: BPF: Fix off-by-one error in buildprologue Vincent reported that running BPF progs with tailcalls on LoongArch causes kernel hard lockup. Debugging the issues shows that the JITed image missing a jirl instruction at th...

CVE-2025-37893

The CVE-2025-37893 issue affects the Linux kernel’s LoongArch BPF JIT path. Debugging shows that when BPF programs mix bpf2bpf and tailcalls, build_prologue() can generate N instructions in the first pass and N+1 in the second, causing epilogue_offset to be off by one. This can cause the JITed ep...