This is a note to let you know that I've just added the patch titled
dccp: fix a memleak for dccp_feat_init err process
to the 4.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
dccp-fix-a-memleak-for-dccp_feat_init-err-process.patch
and it can be found in the queue-4.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Tue Aug 8 16:27:29 PDT 2017
From: Xin Long <lucien.xin@xxxxxxxxx>
Date: Wed, 26 Jul 2017 14:20:15 +0800
Subject: dccp: fix a memleak for dccp_feat_init err process
From: Xin Long <lucien.xin@xxxxxxxxx>
[ Upstream commit e90ce2fc27cad7e7b1e72b9e66201a7a4c124c2b ]
In dccp_feat_init, when ccid_get_builtin_ccids failsto alloc
memory for rx.val, it should free tx.val before returning an
error.
Signed-off-by: Xin Long <lucien.xin@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/dccp/feat.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
--- a/net/dccp/feat.c
+++ b/net/dccp/feat.c
@@ -1471,9 +1471,12 @@ int dccp_feat_init(struct sock *sk)
* singleton values (which always leads to failure).
* These settings can still (later) be overridden via sockopts.
*/
- if (ccid_get_builtin_ccids(&tx.val, &tx.len) ||
- ccid_get_builtin_ccids(&rx.val, &rx.len))
+ if (ccid_get_builtin_ccids(&tx.val, &tx.len))
return -ENOBUFS;
+ if (ccid_get_builtin_ccids(&rx.val, &rx.len)) {
+ kfree(tx.val);
+ return -ENOBUFS;
+ }
if (!dccp_feat_prefer(sysctl_dccp_tx_ccid, tx.val, tx.len) ||
!dccp_feat_prefer(sysctl_dccp_rx_ccid, rx.val, rx.len))
Patches currently in stable-queue which might be from lucien.xin@xxxxxxxxx are
queue-4.12/sctp-fix-the-check-for-_sctp_walk_params-and-_sctp_walk_errors.patch
queue-4.12/dccp-fix-a-memleak-that-dccp_ipv6-doesn-t-put-reqsk-properly.patch
queue-4.12/dccp-fix-a-memleak-that-dccp_ipv4-doesn-t-put-reqsk-properly.patch
queue-4.12/dccp-fix-a-memleak-for-dccp_feat_init-err-process.patch
queue-4.12/sctp-fix-an-array-overflow-when-all-ext-chunks-are-set.patch