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Kirill A. Shutemov
85fd85bc02
insn_decoder_test found a problem with decoding APX CTEST instructions:
Found an x86 instruction decoder bug, please report this.
ffffffff810021df 62 54 94 05 85 ff ctestneq
objdump says 6 bytes, but insn_get_length() says 5
It happens because x86-opcode-map.txt doesn't specify arguments for the
instruction and the decoder doesn't expect to see ModRM byte.
Fixes: 690ca3a306 ("x86/insn: Add support for APX EVEX instructions to the opcode map")
Signed-off-by: Kirill A. Shutemov <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: [email protected] # v6.10+
Link: https://lore.kernel.org/r/[email protected]