bpf: Clear per_cpu pointers during bpf_prog_realloc

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bpf_prog_realloc copies contents of struct bpf_prog.
The pointers have to be cleared before freeing old struct.

Reported-by: Ilya Leoshkevich <iii@linux.ibm.com>
Fixes: 700d4796ef ("bpf: Optimize program stats")
Fixes: ca06f55b90 ("bpf: Add per-program recursion prevention mechanism")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Alexei Starovoitov 2021-02-11 19:35:00 -08:00

parent 6fdd671baa

commit 1336c66247

1 changed files with 2 additions and 0 deletions

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kernel/bpf/core.c

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