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| author | Jeff Layton <jlayton@redhat.com> | 2012-03-28 07:36:01 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2012-03-28 10:10:24 -0400 |
| commit | 21f72c9f0a6774d104fb655bda6099c378518945 (patch) | |
| tree | fa320f8b928d9aa4277711f03d6d44af60e151b4 | |
| parent | 3af706135bcc06b1519ba50beaf1b47d32d0fc26 (diff) | |
| download | linux-3.10-21f72c9f0a6774d104fb655bda6099c378518945.tar.gz linux-3.10-21f72c9f0a6774d104fb655bda6099c378518945.tar.bz2 linux-3.10-21f72c9f0a6774d104fb655bda6099c378518945.zip | |
nfsd: fix NULL pointer dereference in cld_pipe_downcall
If we find that "cup" is NULL in this case, then we obviously don't
want to dereference it. What we really want to print in this case
is the xid that we copied off earlier.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| -rw-r--r-- | fs/nfsd/nfs4recover.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c index 21b53d57432..eaaf9482c7f 100644 --- a/fs/nfsd/nfs4recover.c +++ b/fs/nfsd/nfs4recover.c @@ -602,8 +602,7 @@ cld_pipe_downcall(struct file *filp, const char __user *src, size_t mlen) /* couldn't find upcall? */ if (!cup) { - dprintk("%s: couldn't find upcall -- xid=%u\n", __func__, - cup->cu_msg.cm_xid); + dprintk("%s: couldn't find upcall -- xid=%u\n", __func__, xid); return -EINVAL; } |