diff options
| author | Vladimir Serbinenko <phcoder@gmail.com> | 2014-01-15 22:06:56 +0100 |
|---|---|---|
| committer | Nico Huber <nico.h@gmx.de> | 2014-01-19 11:51:23 +0100 |
| commit | 7ea00155b20db923833b8d3564c897b8ecf3fcc1 (patch) | |
| tree | dee269d8f15ffdf667427adf5a9744b170894726 | |
| parent | fd5b3704374c9ca7d57627f9d449536d02b9baf0 (diff) | |
libpayload/options: Fix out of array read.
It resulted in garbage in upper bytes of numeric options.
Change-Id: I5e5d8b770ed93c7e8a1756a5ce32444b6a045bac
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/4691
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
| -rw-r--r-- | payloads/libpayload/drivers/options.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/payloads/libpayload/drivers/options.c b/payloads/libpayload/drivers/options.c index d497c0aae6..70c2b1760d 100644 --- a/payloads/libpayload/drivers/options.c +++ b/payloads/libpayload/drivers/options.c @@ -310,6 +310,10 @@ int get_option_as_string(const struct nvram_accessor *nvram, struct cb_cmos_opti return 1; int cmos_length = (cmos_entry->length+7)/8; + /* ensure we have enough space for u64 */ + if (cmos_length < 8) + cmos_length = 8; + /* extra byte to ensure 0-terminated strings */ raw = malloc(cmos_length+1); memset(raw, 0, cmos_length+1); |