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bpf: fix do_misc_fixups() for bpf_get_branch_snapshot()

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We need `goto next_insn;` at the end of patching instead of `continue;`.
It currently works by accident by making verifier re-process patched
instructions.

Reported-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
Fixes: 314a53623c ("bpf: inline bpf_get_branch_snapshot() helper")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Acked-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
Link: https://lore.kernel.org/r/20241023161916.2896274-1-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Andrii Nakryiko 2024-10-23 09:19:16 -07:00 committed by Alexei Starovoitov
parent 0ee288e69d
commit 9806f28314
1 changed files with 1 additions and 1 deletions
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2
kernel/bpf/verifier.c
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@ -21210,7 +21210,7 @@ static int do_misc_fixups(struct bpf_verifier_env *env)
delta += cnt - 1;
env->prog = prog = new_prog;
insn = new_prog->insnsi + i + delta;
continue;
goto next_insn;
}
/* Implement bpf_kptr_xchg inline */