bpf: Reject stack arguments if tail call reachable

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Tail calls are deprecated and will be replaced by indirect calls
in the future. Reject programs that combine tail calls with stack
arguments rather than adding complexity for a deprecated feature.

Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20260513045109.2392108-1-yonghong.song@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Yonghong Song 2026-05-12 21:51:09 -07:00 • committed by Alexei Starovoitov

parent e0b7b91c72

commit 35b7873316

1 changed files with 10 additions and 1 deletions

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kernel/bpf/verifier.c

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