bpf: Reduce stack consumption in check_stack_write_fixed_off

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The fake_reg moved into env->fake_reg given it consumes a lot of stack
space (120 bytes). Migrate the fake_reg in check_stack_write_fixed_off()
as well now that we have it.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20240613115310.25383-2-daniel@iogearbox.net
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Daniel Borkmann 2024-06-13 13:53:09 +02:00 • committed by Alexei Starovoitov

parent 9242480126

commit e73cd1cfc2

1 changed files with 5 additions and 4 deletions

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kernel/bpf/verifier.c

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