From: Pu Lehui When bpf_int_jit_compile() is called for subprograms, it returns early during the first pass (!prog->is_func || extra_pass is false), keeping ctx->offset alive for the subsequent extra pass. If JIT compilation fails for a later subprogram, the BPF core aborts and calls bpf_jit_free() to clean up the first subprogram. However, bpf_jit_free() fails to free jit_data->ctx.offset, which causes a memory leak of the JIT context offsets array. Fix this by adding the missing kvfree(jit_data->ctx.offset) in bpf_jit_free(). Fixes: 4ab17e762b34 ("LoongArch: BPF: Use BPF prog pack allocator") Reported-by: Sashiko Signed-off-by: Pu Lehui --- arch/loongarch/net/bpf_jit.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/loongarch/net/bpf_jit.c b/arch/loongarch/net/bpf_jit.c index 2738b4db1165..3d3ed1677d01 100644 --- a/arch/loongarch/net/bpf_jit.c +++ b/arch/loongarch/net/bpf_jit.c @@ -2361,6 +2361,7 @@ void bpf_jit_free(struct bpf_prog *prog) */ if (jit_data) { bpf_jit_binary_pack_finalize(jit_data->ro_header, jit_data->header); + kvfree(jit_data->ctx.offset); kfree(jit_data); } hdr = bpf_jit_binary_pack_hdr(prog); -- 2.34.1