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authorJ. Bruce Fields <bfields@redhat.com>2017-01-11 20:34:50 -0500
committerJ. Bruce Fields <bfields@redhat.com>2017-01-12 15:55:51 -0500
commitdcd208697707b12adeaa45643bab239c5e90ef9b (patch)
tree746ca608b9402be469406830a20855cdae0473eb /fs/nfsd
parent0c744ea4f77d72b3dcebb7a8f2684633ec79be88 (diff)
downloadlinux-dcd208697707b12adeaa45643bab239c5e90ef9b.tar.bz2
nfsd: fix supported attributes for acl & labels
Oops--in 916d2d844afd I moved some constants into an array for convenience, but here I'm accidentally writing to that array. The effect is that if you ever encounter a filesystem lacking support for ACLs or security labels, then all queries of supported attributes will report that attribute as unsupported from then on. Fixes: 916d2d844afd "nfsd: clean up supported attribute handling" Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd')
-rw-r--r--fs/nfsd/nfs4xdr.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 7ecf16be4a44..8fae53ce21d1 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -2440,7 +2440,9 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
p++; /* to be backfilled later */
if (bmval0 & FATTR4_WORD0_SUPPORTED_ATTRS) {
- u32 *supp = nfsd_suppattrs[minorversion];
+ u32 supp[3];
+
+ memcpy(supp, nfsd_suppattrs[minorversion], sizeof(supp));
if (!IS_POSIXACL(dentry->d_inode))
supp[0] &= ~FATTR4_WORD0_ACL;