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Anton ProtopopovandGreg Kroah-Hartman
fe4bfff1cd
[ Upstream commit37eacb9f6e] 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:387544bfa2("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 Signed-off-by: Sasha Levin <sashal@kernel.org>