aboutsummaryrefslogtreecommitdiff
path: root/fs/cifs/ioctl.c
diff options
context:
space:
mode:
authorAnders Roxell <anders.roxell@linaro.org>2016-08-10 12:11:15 +0200
committerAnders Roxell <anders.roxell@linaro.org>2016-08-10 12:11:15 +0200
commita44038112d3379f49df8a9db3e1259d9e945faee (patch)
tree198f8ef7dcba389b87dbd3cac861d896b5bfd77d /fs/cifs/ioctl.c
parent590e935df0c94b2d7a4584bb26906666176a6133 (diff)
parent0e790100f1c49f32a390d0cc55801230fd04ba56 (diff)
Merge remote-tracking branch 'lsk/linux-linaro-lsk-v3.18' into linux-linaro-lsk-v3.18-rtlsk-v3.18-16.09-rtlinux-linaro-lsk-v3.18-rt-test
Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Conflicts: kernel/futex.c kernel/printk/printk.c kernel/softirq.c mm/slub.c mm/swap.c
Diffstat (limited to 'fs/cifs/ioctl.c')
-rw-r--r--fs/cifs/ioctl.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 8b7898b7670f..64a9bca976d0 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -67,6 +67,12 @@ static long cifs_ioctl_clone(unsigned int xid, struct file *dst_file,
goto out_drop_write;
}
+ if (src_file.file->f_op->unlocked_ioctl != cifs_ioctl) {
+ rc = -EBADF;
+ cifs_dbg(VFS, "src file seems to be from a different filesystem type\n");
+ goto out_fput;
+ }
+
if ((!src_file.file->private_data) || (!dst_file->private_data)) {
rc = -EBADF;
cifs_dbg(VFS, "missing cifsFileInfo on copy range src file\n");