This is a note to let you know that I've just added the patch titled
sctp: fully initialize sctp_outq in sctp_outq_init
to the 3.4-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:
sctp-fully-initialize-sctp_outq-in-sctp_outq_init.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 06f8f3ad8197d1e9e7fe80d8f2df19265eade3f9 Mon Sep 17 00:00:00 2001
From: Neil Horman <nhorman@xxxxxxxxxxxxx>
Date: Wed, 12 Jun 2013 14:26:44 -0400
Subject: sctp: fully initialize sctp_outq in sctp_outq_init
From: Neil Horman <nhorman@xxxxxxxxxxxxx>
[ Upstream commit c5c7774d7eb4397891edca9ebdf750ba90977a69 ]
In commit 2f94aabd9f6c925d77aecb3ff020f1cc12ed8f86
(refactor sctp_outq_teardown to insure proper re-initalization)
we modified sctp_outq_teardown to use sctp_outq_init to fully re-initalize the
outq structure. Steve West recently asked me why I removed the q->error = 0
initalization from sctp_outq_teardown. I did so because I was operating under
the impression that sctp_outq_init would properly initalize that value for us,
but it doesn't. sctp_outq_init operates under the assumption that the outq
struct is all 0's (as it is when called from sctp_association_init), but using
it in __sctp_outq_teardown violates that assumption. We should do a memset in
sctp_outq_init to ensure that the entire structure is in a known state there
instead.
Signed-off-by: Neil Horman <nhorman@xxxxxxxxxxxxx>
Reported-by: "West, Steve (NSN - US/Fort Worth)" <steve.west@xxxxxxx>
CC: Vlad Yasevich <vyasevich@xxxxxxxxx>
CC: netdev@xxxxxxxxxxxxxxx
CC: davem@xxxxxxxxxxxxx
Acked-by: Vlad Yasevich <vyasevich@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/sctp/outqueue.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -205,6 +205,8 @@ static inline int sctp_cacc_skip(struct
*/
void sctp_outq_init(struct sctp_association *asoc, struct sctp_outq *q)
{
+ memset(q, 0, sizeof(struct sctp_outq));
+
q->asoc = asoc;
INIT_LIST_HEAD(&q->out_chunk_list);
INIT_LIST_HEAD(&q->control_chunk_list);
@@ -212,13 +214,7 @@ void sctp_outq_init(struct sctp_associat
INIT_LIST_HEAD(&q->sacked);
INIT_LIST_HEAD(&q->abandoned);
- q->fast_rtx = 0;
- q->outstanding_bytes = 0;
q->empty = 1;
- q->cork = 0;
-
- q->malloced = 0;
- q->out_qlen = 0;
}
/* Free the outqueue structure and any related pending chunks.
Patches currently in stable-queue which might be from nhorman@xxxxxxxxxxxxx are
queue-3.4/8139cp-add-dma_mapping_error-checking.patch
queue-3.4/sctp-fully-initialize-sctp_outq-in-sctp_outq_init.patch
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