Merge branch 'properly-load-insn-array-values-with-offsets'

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Anton Protopopov says:

====================
properly load insn array values with offsets

As was reported by the BPF CI bot in [1] the direct address
of an instruction array returned by map_direct_value_addr()
is incorrect if the offset is non-zero. Fix this bug and
add selftests.

Also (commit 2), return EACCES instead of EINVAL when offsets
aren't correct.

  [1] https://lore.kernel.org/bpf/0447c47ac58306546a5dbdbad2601f3e77fa8eb24f3a4254dda3a39f6133e68f@mail.kernel.org/
====================

Link: https://patch.msgid.link/20260111153047.8388-1-a.s.protopopov@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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This commit is contained in:

Alexei Starovoitov 2026-01-13 19:35:14 -08:00

parent bbdbed193b c656807675

commit 46c76760fe

2 changed files with 210 additions and 2 deletions

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4

kernel/bpf/bpf_insn_array.c

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208

tools/testing/selftests/bpf/prog_tests/bpf_gotox.c

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