This is a note to let you know that I've just added the patch titled
nfsd4: fix nfs4 stateid leak
to the 3.6-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:
nfsd4-fix-nfs4-stateid-leak.patch
and it can be found in the queue-3.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From cf9182e90b2af04245ac4fae497fe73fc71285b4 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <[email protected]>
Date: Wed, 29 Aug 2012 15:21:58 -0700
Subject: nfsd4: fix nfs4 stateid leak
From: "J. Bruce Fields" <[email protected]>
commit cf9182e90b2af04245ac4fae497fe73fc71285b4 upstream.
Processes that open and close multiple files may end up setting this
oo_last_closed_stid without freeing what was previously pointed to.
This can result in a major leak, visible for example by watching the
nfsd4_stateids line of /proc/slabinfo.
Reported-by: Cyril B. <[email protected]>
Tested-by: Cyril B. <[email protected]>
Signed-off-by: J. Bruce Fields <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
fs/nfsd/nfs4state.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3782,6 +3782,7 @@ nfsd4_close(struct svc_rqst *rqstp, stru
memcpy(&close->cl_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t));
nfsd4_close_open_stateid(stp);
+ release_last_closed_stateid(oo);
oo->oo_last_closed_stid = stp;
if (list_empty(&oo->oo_owner.so_stateids)) {
Patches currently in stable-queue which might be from [email protected] are
queue-3.6/nfsd4-fix-nfs4-stateid-leak.patch
queue-3.6/nfsd4-don-t-pin-clientids-to-pseudoflavors.patch
queue-3.6/nfsd-pass-null-terminated-buf-to-kstrtouint.patch
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