diff options
| author | Jacob Garber <jgarber1@ualberta.ca> | 2019-04-08 17:54:35 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-04-11 11:27:41 +0000 |
| commit | f74f6cbde5b51bb85fa3b20b80f482ef41eb7e9b (patch) | |
| tree | f86bee2e4a97d56ec764f48244e9a3240db56b5c /src/northbridge/intel/i945 | |
| parent | 94d61ecab035fbef7e93db8cfbdbabd7c41a264d (diff) | |
nb/intel/{gm45,i945,x4x}: Correct array bounds checks
There will be an out of bounds read if the index is equal
to the array size. Fix the checks to exclude this case.
Found-by: Coverity Scan, CID 1347350, 1347351
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Change-Id: I5b4e8febb68dfd244faf597dfe5cdf509af7a2ae
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32244
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/northbridge/intel/i945')
| -rw-r--r-- | src/northbridge/intel/i945/ram_calc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/northbridge/intel/i945/ram_calc.c b/src/northbridge/intel/i945/ram_calc.c index 124a6a8317..752c8f901c 100644 --- a/src/northbridge/intel/i945/ram_calc.c +++ b/src/northbridge/intel/i945/ram_calc.c @@ -82,7 +82,7 @@ u32 decode_igd_memory_size(const u32 gms) static const u16 ggc2uma[] = { 0, 1, 4, 8, 16, 32, 48, 64 }; - if (gms > ARRAY_SIZE(ggc2uma)) + if (gms >= ARRAY_SIZE(ggc2uma)) die("Bad Graphics Mode Select (GMS) setting.\n"); return ggc2uma[gms] << 10; |