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| author | Olga Kornievskaia <kolga@netapp.com> | 2021-12-09 22:53:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-02-16 14:56:09 +0300 |
| commit | 0c5d3bfb296785d21feabc7cc972a5f704f6f3e6 (patch) | |
| tree | 59d964257f2a530f8b1645defd72def105671d23 /fs/nfs | |
| parent | 3cb5b317901e769e4d465e1db2ddff0e1230563c (diff) | |
| download | linux-0c5d3bfb296785d21feabc7cc972a5f704f6f3e6.tar.xz | |
NFSv4 remove zero number of fs_locations entries error check
[ Upstream commit 90e12a3191040bd3854d3e236c35921e4e92a044 ]
Remove the check for the zero length fs_locations reply in the
xdr decoding, and instead check for that in the migration code.
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/nfs4state.c | 3 | ||||
| -rw-r--r-- | fs/nfs/nfs4xdr.c | 2 |
2 files changed, 3 insertions, 2 deletions
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index f22818a80c2c..acc1cd3e63a4 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -2105,6 +2105,9 @@ static int nfs4_try_migration(struct nfs_server *server, const struct cred *cred } result = -NFS4ERR_NXIO; + if (!locations->nlocations) + goto out; + if (!(locations->fattr.valid & NFS_ATTR_FATTR_V4_LOCATIONS)) { dprintk("<-- %s: No fs_locations data, migration skipped\n", __func__); diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 5e886518f2d4..2a1bf0a72d5b 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -3693,8 +3693,6 @@ static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, st if (unlikely(!p)) goto out_eio; n = be32_to_cpup(p); - if (n <= 0) - goto out_eio; for (res->nlocations = 0; res->nlocations < n; res->nlocations++) { u32 m; struct nfs4_fs_location *loc; |