cifs: fix CIFS_ENUMERATE_SNAPSHOTS oops

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commit 6026685de3 upstream.

As with 618763958b, an open directory may have a NULL private_data
pointer prior to readdir. CIFS_ENUMERATE_SNAPSHOTS must check for this
before dereference.

Fixes: 834170c859 ("Enable previous version support")
Signed-off-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Steve French <smfrench@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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David Disseldorp 2017-05-03 17:39:08 +02:00 • committed by Greg Kroah-Hartman

parent 449a74439d

commit 411346640c

1 changed files with 2 additions and 0 deletions

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fs/cifs/ioctl.c

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