diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2019-01-30 16:58:38 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-29 12:21:40 +0300 |
| commit | 983f90b9ccb944bd12866faf151900679d95f17d (patch) | |
| tree | 7c00ff99d1b64a526b23992f710968632833221a /fs/nfs | |
| parent | 00b71397e89d5a8b0bbfeccc92110d05d6bf11eb (diff) | |
| download | linux-983f90b9ccb944bd12866faf151900679d95f17d.tar.xz | |
fs/nfs: Fix nfs_parse_devname to not modify it's argument
[ Upstream commit 40cc394be1aa18848b8757e03bd8ed23281f572e ]
In the rare and unsupported case of a hostname list nfs_parse_devname
will modify dev_name. There is no need to modify dev_name as the all
that is being computed is the length of the hostname, so the computed
length can just be shorted.
Fixes: dc04589827f7 ("NFS: Use common device name parsing logic for NFSv4 and NFSv2/v3")
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/super.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c index dced329a8584..47a7751146cf 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -1901,7 +1901,7 @@ static int nfs_parse_devname(const char *dev_name, /* kill possible hostname list: not supported */ comma = strchr(dev_name, ','); if (comma != NULL && comma < end) - *comma = 0; + len = comma - dev_name; } if (len > maxnamlen) |