From: J. Bruce Fields <bfields@fieldses.org>
Date: Thu, 13 Oct 2005 20:54:32 +0000 (-0400)
Subject: NFSv4: Fix acl buffer size
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=1d95db8e1688ed54e143a597c5570631a42fa594;p=deliverable%2Flinux.git

NFSv4: Fix acl buffer size

 resp_len is passed in as buffer size to decode routine; make sure it's
 set right in case where userspace provides less than a page's worth of
 buffer.

 Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index ff378126ccd7..2d9357cf3fc5 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2357,7 +2357,7 @@ static inline ssize_t nfs4_get_acl_uncached(struct inode *inode, void *buf, size
 			return -ENOMEM;
 		args.acl_pages[0] = localpage;
 		args.acl_pgbase = 0;
-		args.acl_len = PAGE_SIZE;
+		resp_len = args.acl_len = PAGE_SIZE;
 	} else {
 		resp_buf = buf;
 		buf_to_pages(buf, buflen, args.acl_pages, &args.acl_pgbase);