This is a note to let you know that I've just added the patch titled
nfs3_list_one_acl(): check get_acl() result with IS_ERR_OR_NULL
to the 3.16-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:
nfs3_list_one_acl-check-get_acl-result-with-is_err_or_null.patch
and it can be found in the queue-3.16 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 7a9e75a185e6b3a3860e6a26fb6e88691fc2c9d9 Mon Sep 17 00:00:00 2001
From: Andrey Utkin <andrey.krieger.utkin@xxxxxxxxx>
Date: Sat, 26 Jul 2014 14:58:01 +0300
Subject: nfs3_list_one_acl(): check get_acl() result with IS_ERR_OR_NULL
From: Andrey Utkin <andrey.krieger.utkin@xxxxxxxxx>
commit 7a9e75a185e6b3a3860e6a26fb6e88691fc2c9d9 upstream.
There was a check for result being not NULL. But get_acl() may return
NULL, or ERR_PTR, or actual pointer.
The purpose of the function where current change is done is to "list
ACLs only when they are available", so any error condition of get_acl()
mustn't be elevated, and returning 0 there is still valid.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=81111
Signed-off-by: Andrey Utkin <andrey.krieger.utkin@xxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Fixes: 74adf83f5d77 (nfs: only show Posix ACLs in listxattr if actually...)
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/nfs/nfs3acl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/nfs/nfs3acl.c
+++ b/fs/nfs/nfs3acl.c
@@ -256,7 +256,7 @@ nfs3_list_one_acl(struct inode *inode, i
char *p = data + *result;
acl = get_acl(inode, type);
- if (!acl)
+ if (IS_ERR_OR_NULL(acl))
return 0;
posix_acl_release(acl);
Patches currently in stable-queue which might be from andrey.krieger.utkin@xxxxxxxxx are
queue-3.16/nfs3_list_one_acl-check-get_acl-result-with-is_err_or_null.patch
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