diff options
Diffstat (limited to 'lib/packing.c')
| -rw-r--r-- | lib/packing.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/packing.c b/lib/packing.c index 3f656167c17e0c..439125286d2b4e 100644 --- a/lib/packing.c +++ b/lib/packing.c @@ -86,8 +86,10 @@ int packing(void *pbuf, u64 *uval, int startbit, int endbit, size_t pbuflen, */ int plogical_first_u8, plogical_last_u8, box; - /* startbit is expected to be larger than endbit */ - if (startbit < endbit) + /* startbit is expected to be larger than endbit, and both are + * expected to be within the logically addressable range of the buffer. + */ + if (unlikely(startbit < endbit || startbit >= 8 * pbuflen || endbit < 0)) /* Invalid function call */ return -EINVAL; |