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| author | Nick Clifton <nickc@redhat.com> | 2017-01-20 10:32:25 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2017-01-20 10:32:25 +0000 |
| commit | 9d46ce346fe3028d3d57332f286f3895c0724876 (patch) | |
| tree | 787f391f98454f528fb06146b934526ce78cadbc /gas | |
| parent | a24df3057179f81a2624bf3bd3d78113cb2fcc8e (diff) | |
| download | gdb-9d46ce346fe3028d3d57332f286f3895c0724876.zip gdb-9d46ce346fe3028d3d57332f286f3895c0724876.tar.gz gdb-9d46ce346fe3028d3d57332f286f3895c0724876.tar.bz2 | |
Fix potential array overrun in x86 assembler.
* config/tc-i386.c (parse_operands): Check for operand overflow
before setting the unspecified bit.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/ChangeLog | 5 | ||||
| -rw-r--r-- | gas/config/tc-i386.c | 2 |
2 files changed, 6 insertions, 1 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index d515f3b..fbadd0b 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,8 @@ +2017-01-20 Nick Clifton <nickc@redhat.com> + + * config/tc-i386.c (parse_operands): Check for operand overflow + before setting the unspecified bit. + 2017-01-18 Maciej W. Rozycki <macro@imgtec.com> PR gas/20649 diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 80812cf..1fc6bc7 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -4136,13 +4136,13 @@ parse_operands (char *l, const char *mnemonic) { /* Yes, we've read in another operand. */ unsigned int operand_ok; this_operand = i.operands++; - i.types[this_operand].bitfield.unspecified = 1; if (i.operands > MAX_OPERANDS) { as_bad (_("spurious operands; (%d operands/instruction max)"), MAX_OPERANDS); return NULL; } + i.types[this_operand].bitfield.unspecified = 1; /* Now parse operand adding info to 'i' as we go along. */ END_STRING_AND_SAVE (l); |