s390/bpf: Fix indirect trampoline generation

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The func_addr used to be NULL for indirect trampolines used by struct_ops.
Now func_addr is a valid function pointer.
Hence use BPF_TRAMP_F_INDIRECT flag to detect such condition.

Fixes: 2cd3e3772e ("x86/cfi,bpf: Fix bpf_struct_ops CFI")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Link: https://lore.kernel.org/bpf/20231216004549.78355-1-alexei.starovoitov@gmail.com

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Alexei Starovoitov 2023-12-15 16:45:49 -08:00 • committed by Daniel Borkmann

parent 42d45c4562

commit 0c970ed2f8

2 changed files with 2 additions and 3 deletions

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3

arch/s390/net/bpf_jit_comp.c

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2

tools/testing/selftests/bpf/DENYLIST.s390x

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