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authorTsukasa OI <research_trasio@irq.a4lg.com>2022-10-04 08:35:30 +0000
committerTsukasa OI <research_trasio@irq.a4lg.com>2022-10-04 13:21:41 +0000
commit73e30e726cd778d055a81c1f4c2ccff1c1acdaa9 (patch)
tree9f0b9a33a5ca332a9891980b7d4b3406777b2e1e /include
parent136ea8742027eaa257be7ef9a4dbdc86c08aba27 (diff)
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RISC-V: Fix buffer overflow on print_insn_riscv
Because riscv_insn_length started to support instructions up to 176-bit, we need to increase packet buffer size to 176-bit in size. include/ChangeLog: * opcode/riscv.h (RISCV_MAX_INSN_LEN): Max instruction length for use in buffer size. opcodes/ChangeLog: * riscv-dis.c (print_insn_riscv): Increase buffer size for max 176-bit length instructions.
Diffstat (limited to 'include')
-rw-r--r--include/opcode/riscv.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/opcode/riscv.h b/include/opcode/riscv.h
index 9cc0016..f173a2e 100644
--- a/include/opcode/riscv.h
+++ b/include/opcode/riscv.h
@@ -40,6 +40,8 @@ static inline unsigned int riscv_insn_length (insn_t insn)
/* 80- ... 176-bit instructions. */
if ((insn & 0x7f) == 0x7f && (insn & 0x7000) != 0x7000)
return 10 + ((insn >> 11) & 0xe);
+ /* Maximum value returned by this function. */
+#define RISCV_MAX_INSN_LEN 22
/* Longer instructions not supported at the moment. */
return 2;
}