Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-11 14:42:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

crypto: nx - off by one bug in nx_of_update_msc()

Browse Source 
The props->ap[] array is defined like this:

	struct alg_props ap[NX_MAX_FC][NX_MAX_MODE][3];

So we can see that if msc->fc and msc->mode are == to NX_MAX_FC or
NX_MAX_MODE then we're off by one.

Fixes: ae0222b728 ('powerpc/crypto: nx driver code supporting nx encryption')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Dan Carpenter 2016-07-15 14:09:13 +03:00 committed by Herbert Xu
parent a6d7bfd0ff
commit e514cc0a49
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/crypto/nx/nx.c
View File

@ -392,7 +392,7 @@ static void nx_of_update_msc(struct device *dev,
((bytes_so_far + sizeof(struct msc_triplet)) <= lenp) &&
i < msc->triplets;
i++) {
if (msc->fc > NX_MAX_FC || msc->mode > NX_MAX_MODE) {
if (msc->fc >= NX_MAX_FC || msc->mode >= NX_MAX_MODE) {
dev_err(dev, "unknown function code/mode "
"combo: %d/%d (ignored)\n", msc->fc,
msc->mode);