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| author |   Yihao Wu <wuyihao@linux.alibaba.com> | 2019-03-06 21:03:50 +0800 |
|---|---|---|
| committer |   J. Bruce Fields <bfields@redhat.com> | 2019-03-06 09:58:20 -0500 |
| commit | dd838821f0a29781b185cd8fb8e48d5c177bd838 (patch) | |
| tree | 426405e03364e391bd2ae17fdafe19e8c8ffda39 /fs/nfsd/nfsctl.c | |
| parent | nfsd: fix memory corruption caused by readdir (diff) | |
| download | linux-dev-dd838821f0a29781b185cd8fb8e48d5c177bd838.tar.xz linux-dev-dd838821f0a29781b185cd8fb8e48d5c177bd838.zip | |
nfsd: fix wrong check in write_v4_end_grace()
Commit 62a063b8e7d1 "nfsd4: fix crash on writing v4_end_grace before
nfsd startup" is trying to fix a NULL dereference issue, but it
mistakenly checks if the nfsd server is started. So fix it.
Fixes: 62a063b8e7d1 "nfsd4: fix crash on writing v4_end_grace before nfsd startup"
Cc: stable@vger.kernel.org
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Signed-off-by: Yihao Wu <wuyihao@linux.alibaba.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | fs/nfsd/nfsctl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index b33f9785b756..ff14c29d01e9 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -1126,7 +1126,7 @@ static ssize_t write_v4_end_grace(struct file *file, char *buf, size_t size) case 'Y': case 'y': case '1': - if (nn->nfsd_serv) + if (!nn->nfsd_serv) return -EBUSY; nfsd4_end_grace(nn); break; |