Check if every data page is signed correctly in sigining helper.
Signed-off-by: Paulo Alcantara <palcantara@xxxxxxx>
---
fs/cifs/cifsencrypt.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index b4672eafc5bf..85b31cfa2f3c 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -83,7 +83,13 @@ int __cifs_calc_signature(struct smb_rqst *rqst,
kaddr = (char *) kmap(rqst->rq_pages[i]) + offset;
- crypto_shash_update(shash, kaddr, len);
+ rc = crypto_shash_update(shash, kaddr, len);
+ if (rc) {
+ cifs_dbg(VFS, "%s: Could not update with payload\n",
+ __func__);
+ kunmap(rqst->rq_pages[i]);
+ return rc;
+ }
kunmap(rqst->rq_pages[i]);
}
--
2.17.1
--
To unsubscribe from this list: send the line "unsubscribe linux-cifs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
