diff options
| author | Alan Modra <amodra@gmail.com> | 2021-09-03 08:23:49 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2021-09-03 11:45:58 +0930 |
| commit | 2ea9d33a127c09d9c4df0337981e48fb4b7a236f (patch) | |
| tree | c34f93ba699aebf807c7f2b87141175f4009fe05 /opcodes | |
| parent | f2cfdb748606b3e634050b8f7030e5e7783a4232 (diff) | |
| download | gdb-2ea9d33a127c09d9c4df0337981e48fb4b7a236f.zip gdb-2ea9d33a127c09d9c4df0337981e48fb4b7a236f.tar.gz gdb-2ea9d33a127c09d9c4df0337981e48fb4b7a236f.tar.bz2 | |
pj: asan: out of bounds, ubsan: left shift of negative
* pj-dis.c: Include libiberty.h.
(print_insn_pj): Don't index op->arg past array bound. Don't
left shift negative int.
Diffstat (limited to 'opcodes')
| -rw-r--r-- | opcodes/pj-dis.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/opcodes/pj-dis.c b/opcodes/pj-dis.c index a67ea38..f0708a0 100644 --- a/opcodes/pj-dis.c +++ b/opcodes/pj-dis.c @@ -21,6 +21,7 @@ #include "sysdep.h" #include <stdio.h> +#include "libiberty.h" #include "opcode/pj.h" #include "disassemble.h" @@ -65,7 +66,7 @@ print_insn_pj (bfd_vma addr, struct disassemble_info *info) char *sep = "\t"; int insn_start = addr; const pj_opc_info_t *op = &pj_opc_info[opcode]; - int a; + unsigned int a; addr++; fprintf_fn (stream, "%s", op->u.name); @@ -145,7 +146,7 @@ print_insn_pj (bfd_vma addr, struct disassemble_info *info) return addr - insn_start; } - for (a = 0; op->arg[a]; a++) + for (a = 0; a < ARRAY_SIZE (op->arg) && op->arg[a]; a++) { unsigned char data[4]; int val = 0; @@ -158,7 +159,7 @@ print_insn_pj (bfd_vma addr, struct disassemble_info *info) val = (UNS (op->arg[0]) || ((data[0] & 0x80) == 0)) ? 0 : -1; for (i = 0; i < size; i++) - val = (val << 8) | (data[i] & 0xff); + val = ((unsigned) val << 8) | (data[i] & 0xff); fprintf_fn (stream, "%s", sep); if (PCREL (op->arg[a])) |