bpf: Remove redundant dynptr arg check for helper

Browse source

unmark_stack_slots_dynptr() already makes sure that CONST_PTR_TO_DYNPTR
cannot be released. process_dynptr_func() also prevents passing
uninitialized dynptr to helpers expecting initialized dynptr. Now that
unmark_stack_slots_dynptr() also reports error returned from
release_reference(), there should be no reason to keep these redundant
checks.

Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Amery Hung <ameryhung@gmail.com>
Link: https://lore.kernel.org/r/20260529014936.2811085-7-ameryhung@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

...

This commit is contained in:

Amery Hung 2026-05-28 18:49:29 -07:00 • committed by Alexei Starovoitov

parent 308c7a0ae8

commit 92d681b427

3 changed files with 6 additions and 25 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

21

kernel/bpf/verifier.c

View file

6

tools/testing/selftests/bpf/progs/dynptr_fail.c

View file

4

tools/testing/selftests/bpf/progs/user_ringbuf_fail.c

View file