bpftool: fix potential NULL pointer dereferencing in prog_dump()

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A NULL pointer dereference could occur if ksyms
is not properly checked before usage in the prog_dump() function.

Fixes: b053b439b7 ("bpf: libbpf: bpftool: Print bpf_line_info during prog dump")
Signed-off-by: Amir Mohammadi <amiremohamadi@yahoo.com>
Reviewed-by: Quentin Monnet <qmo@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/r/20241121083413.7214-1-amiremohamadi@yahoo.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Amir Mohammadi 2024-11-21 12:04:13 +03:30 • committed by Alexei Starovoitov

parent ac9a48a6f1

commit ef3ba8c258

1 changed files with 12 additions and 5 deletions

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tools/bpf/bpftool/prog.c

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