Bugzilla: 1131551 Upstream-status: 3.17-rc1 and Cc'd to stable From 7a9e75a185e6b3a3860e6a26fb6e88691fc2c9d9 Mon Sep 17 00:00:00 2001 From: Andrey Utkin Date: Sat, 26 Jul 2014 14:58:01 +0300 Subject: [PATCH] nfs3_list_one_acl(): check get_acl() result with IS_ERR_OR_NULL 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 Reviewed-by: Christoph Hellwig Fixes: 74adf83f5d77 (nfs: only show Posix ACLs in listxattr if actually...) Cc: stable@vger.kernel.org # 3.14+ Signed-off-by: Trond Myklebust --- fs/nfs/nfs3acl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c index 8f854dde4150..d0fec260132a 100644 --- a/fs/nfs/nfs3acl.c +++ b/fs/nfs/nfs3acl.c @@ -256,7 +256,7 @@ nfs3_list_one_acl(struct inode *inode, int type, const char *name, void *data, char *p = data + *result; acl = get_acl(inode, type); - if (!acl) + if (IS_ERR_OR_NULL(acl)) return 0; posix_acl_release(acl); -- 1.9.3