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-rw-r--r--Fix-BUG-in-calc_seckey.patch58
1 files changed, 0 insertions, 58 deletions
diff --git a/Fix-BUG-in-calc_seckey.patch b/Fix-BUG-in-calc_seckey.patch
deleted file mode 100644
index e5b667975..000000000
--- a/Fix-BUG-in-calc_seckey.patch
+++ /dev/null
@@ -1,58 +0,0 @@
-From patchwork Mon Oct 17 20:40:22 2016
-Content-Type: text/plain; charset="utf-8"
-MIME-Version: 1.0
-Content-Transfer-Encoding: 7bit
-Subject: Fix BUG() in calc_seckey()
-From: Sachin Prabhu <sprabhu@redhat.com>
-X-Patchwork-Id: 9380527
-Message-Id: <1476736822-30098-1-git-send-email-sprabhu@redhat.com>
-To: linux-cifs <linux-cifs@vger.kernel.org>
-Date: Mon, 17 Oct 2016 16:40:22 -0400
-
-Andy Lutromirski's new virtually mapped kernel stack allocations moves
-kernel stacks the vmalloc area. This triggers the bug
- kernel BUG at ./include/linux/scatterlist.h:140!
-at calc_seckey()->sg_init()
-
-Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
-Reviewed-by: Jeff Layton <jlayton@redhat.com>
----
- fs/cifs/cifsencrypt.c | 11 ++++++++---
- 1 file changed, 8 insertions(+), 3 deletions(-)
-
-diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
-index 8347c90..5eb0412 100644
---- a/fs/cifs/cifsencrypt.c
-+++ b/fs/cifs/cifsencrypt.c
-@@ -808,7 +808,11 @@ calc_seckey(struct cifs_ses *ses)
- struct crypto_skcipher *tfm_arc4;
- struct scatterlist sgin, sgout;
- struct skcipher_request *req;
-- unsigned char sec_key[CIFS_SESS_KEY_SIZE]; /* a nonce */
-+ unsigned char *sec_key;
-+
-+ sec_key = kmalloc(CIFS_SESS_KEY_SIZE, GFP_KERNEL);
-+ if (sec_key == NULL)
-+ return -ENOMEM;
-
- get_random_bytes(sec_key, CIFS_SESS_KEY_SIZE);
-
-@@ -816,7 +820,7 @@ calc_seckey(struct cifs_ses *ses)
- if (IS_ERR(tfm_arc4)) {
- rc = PTR_ERR(tfm_arc4);
- cifs_dbg(VFS, "could not allocate crypto API arc4\n");
-- return rc;
-+ goto out;
- }
-
- rc = crypto_skcipher_setkey(tfm_arc4, ses->auth_key.response,
-@@ -854,7 +858,8 @@ calc_seckey(struct cifs_ses *ses)
-
- out_free_cipher:
- crypto_free_skcipher(tfm_arc4);
--
-+out:
-+ kfree(sec_key);
- return rc;
- }
-