x86/bpf: Fix IP after emitting call depth accounting
Adjust the IP passed to `emit_patch` so it calculates the correct offset for the CALL instruction if `x86_call_depth_emit_accounting` emits code. Otherwise we will skip some instructions and most likely crash. Fixes: b2e9dfe5 ("x86/bpf: Emit call depth accounting if required") Link: https://lore.kernel.org/lkml/20230105214922.250473-1-joanbrugueram@gmail.com/ Co-developed-by: Joan Bruguera Micó <joanbrugueram@gmail.com> Signed-off-by: Joan Bruguera Micó <joanbrugueram@gmail.com> Signed-off-by: Uros Bizjak <ubizjak@gmail.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/r/20240401185821.224068-2-ubizjak@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Please register or sign in to comment