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(parent: 449a744) | patch
cifs: fix CIFS_ENUMERATE_SNAPSHOTS oops
authorDavid Disseldorp <ddiss@suse.de>
Wed, 3 May 2017 15:39:08 +0000 (17:39 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 20 May 2017 12:28:40 +0000 (14:28 +0200)
commit411346640ccd04ea8571eb5871659b0bd33b007e
treedc6f89b66a357f25ebee331ca63c1844f5e9e9cdtree | snapshot
parent449a74439d1525b43357be9da42b84fcdbd6b5a9commit | diff
cifs: fix CIFS_ENUMERATE_SNAPSHOTS oops

commit 6026685de33b0db5b2b6b0e9b41b3a1a3261033c upstream.

As with 618763958b22, an open directory may have a NULL private_data
pointer prior to readdir. CIFS_ENUMERATE_SNAPSHOTS must check for this
before dereference.

Fixes: 834170c85978 ("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>
fs/cifs/ioctl.c diff | blob | history
Domain: System / Kernel;