From: Jorge Mora <jmora1300@gmail.com>
Date: Thu, 25 Jan 2024 07:46:12 -0700
Subject: [PATCH] NFSD: change LISTXATTRS cookie encoding to big-endian
Git-commit: 61ab5e07587554d0edec318b6c99b7083967b2ec
Patch-mainline: v6.9-rc1
References: git-fixes
Function nfsd4_listxattr_validate_cookie() expects the cookie
as an offset to the list thus it needs to be encoded in big-endian.
Fixes: 23e50fe3a5e6 ("nfsd: implement the xattr functions and en/decode logic")
Signed-off-by: Jorge Mora <mora@netapp.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Acked-by: NeilBrown <neilb@suse.com>
---
fs/nfsd/nfs4xdr.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -5052,6 +5052,7 @@ nfsd4_encode_listxattrs(struct nfsd4_com
u64 cookie;
char *sp;
__be32 status, tmp;
+ __be64 wire_cookie;
__be32 *p;
u32 nuser;
@@ -5143,7 +5144,8 @@ wreof:
cookie = offset + count;
- write_bytes_to_xdr_buf(xdr->buf, cookie_offset, &cookie, 8);
+ wire_cookie = cpu_to_be64(cookie);
+ write_bytes_to_xdr_buf(xdr->buf, cookie_offset, &wire_cookie, 8);
tmp = cpu_to_be32(count);
write_bytes_to_xdr_buf(xdr->buf, count_offset, &tmp, 4);
out: