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| author | Alan Modra <amodra@gmail.com> | 2019-12-10 23:50:02 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2019-12-11 11:39:07 +1030 |
| commit | 159653d8c0bcc45b479e4329c2e5f304fa942280 (patch) | |
| tree | c257a1516c690d1c7d0cc17fa2e66808dd70b121 /opcodes | |
| parent | d93bba9e0d6c7bd3a570688612a3dd0a5eb0193a (diff) | |
| download | gdb-159653d8c0bcc45b479e4329c2e5f304fa942280.zip gdb-159653d8c0bcc45b479e4329c2e5f304fa942280.tar.gz gdb-159653d8c0bcc45b479e4329c2e5f304fa942280.tar.bz2 | |
ussan: d30v: index out of bounds
* d30v-dis.c (print_insn): Make opind unsigned. Don't access
past end of operands array.
Diffstat (limited to 'opcodes')
| -rw-r--r-- | opcodes/ChangeLog | 5 | ||||
| -rw-r--r-- | opcodes/d30v-dis.c | 8 |
2 files changed, 10 insertions, 3 deletions
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog index 5cd7361..946c620 100644 --- a/opcodes/ChangeLog +++ b/opcodes/ChangeLog @@ -1,5 +1,10 @@ 2019-12-11 Alan Modra <amodra@gmail.com> + * d30v-dis.c (print_insn): Make opind unsigned. Don't access + past end of operands array. + +2019-12-11 Alan Modra <amodra@gmail.com> + * csky-dis.c (csky_chars_to_number): Rewrite. Avoid signed overflow when collecting bytes of a number. diff --git a/opcodes/d30v-dis.c b/opcodes/d30v-dis.c index 8dd43fb..d2e0caa 100644 --- a/opcodes/d30v-dis.c +++ b/opcodes/d30v-dis.c @@ -125,7 +125,8 @@ print_insn (struct disassemble_info *info, { int val, opnum, need_comma = 0; struct d30v_operand *oper; - int i, match, opind = 0, need_paren = 0, found_control = 0; + int i, match, need_paren = 0, found_control = 0; + unsigned int opind = 0; (*info->fprintf_func) (info->stream, "%s", insn->op->name); @@ -154,7 +155,8 @@ print_insn (struct disassemble_info *info, (*info->fprintf_func) (info->stream, "\t"); - while ((opnum = insn->form->operands[opind++]) != 0) + while (opind < ARRAY_SIZE (insn->form->operands) + && (opnum = insn->form->operands[opind++]) != 0) { int bits; @@ -314,7 +316,7 @@ print_insn (struct disassemble_info *info, (*info->fprintf_func) (info->stream, "0x%x", val); } /* If there is another operand, then write a comma and space. */ - if (opind < (int) ARRAY_SIZE (insn->form->operands) + if (opind < ARRAY_SIZE (insn->form->operands) && insn->form->operands[opind] && !(found_control && opind == 2)) need_comma = 1; |