Merge branch 'bpf-follow-up-fixes-for-stack-argument-support'

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Yonghong Song says:

====================
bpf: Follow-up fixes for stack argument support

Commit cd59fa185a ("bpf: Support stack arguments for BPF functions and kfuncs")
added stack argument support for bpf functions and kfuncs. This patch set
is to fix various issues related to stack arguments, mainly include:
  - Validate outgoing stack args when btf_prepare_func_args fails
  - Fix arg_track_join log to use sa prefix for stack arg slots
  - Clean up redundant stack arg checks for non-JITed programs

Changelog:
  v2 -> v3:
    - v2: https://lore.kernel.org/bpf/20260515014958.1186132-1-yonghong.song@linux.dev/
    - Add additional fix (fix arg_track_join log, fix exception with outgoing stack
      arguments, some cleanup, etc.).
  v1 -> v2:
    - v1: https://lore.kernel.org/bpf/20260514184827.1619863-1-yonghong.song@linux.dev/
    - Remove 'Reported-by: Sashiko <sashiko-bot@kernel.org>'.
    - Add proper fix tag.
====================

Link: https://patch.msgid.link/20260515225035.821178-1-yonghong.song@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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This commit is contained in:

Alexei Starovoitov 2026-05-16 17:46:17 -07:00

parent c8993263ff 98540a1282

commit 50d00ea660

7 changed files with 84 additions and 8 deletions

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2

kernel/bpf/core.c

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2

kernel/bpf/fixups.c

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4

kernel/bpf/liveness.c

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10

kernel/bpf/verifier.c

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8

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

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8

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

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58

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

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