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author | Anton Protopopov <aspsk@isovalent.com> | 2024-04-12 17:11:00 +0300 |
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committer | Daniel Borkmann <daniel@iogearbox.net> | 2024-04-12 19:37:20 +0300 |
commit | 37eacb9f6e89fb399a79e952bc9c78eb3e16290e (patch) | |
tree | 58df1bb3ed11511fa6c3fd8f7f56f9ff13b6e2d9 /arch/arm64 | |
parent | 6648e613226e18897231ab5e42ffc29e63fa3365 (diff) | |
download | linux-37eacb9f6e89fb399a79e952bc9c78eb3e16290e.tar.xz |
bpf: Fix a verifier verbose message
Long ago a map file descriptor in a pseudo ldimm64 instruction could
only be present as an immediate value insn[0].imm, and thus this value
was used in a verbose verifier message printed when the file descriptor
wasn't valid. Since addition of BPF_PSEUDO_MAP_IDX_VALUE/BPF_PSEUDO_MAP_IDX
the insn[0].imm field can also contain an index pointing to the file
descriptor in the attr.fd_array array. However, if the file descriptor
is invalid, the verifier still prints the verbose message containing
value of insn[0].imm. Patch the verifier message to always print the
actual file descriptor value.
Fixes: 387544bfa291 ("bpf: Introduce fd_idx")
Signed-off-by: Anton Protopopov <aspsk@isovalent.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20240412141100.3562942-1-aspsk@isovalent.com
Diffstat (limited to 'arch/arm64')
0 files changed, 0 insertions, 0 deletions