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fuse: fix double request_end()
authorMiklos Szeredi <mszeredi@redhat.com>
Thu, 26 Jul 2018 14:13:11 +0000 (16:13 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 5 Sep 2018 07:18:39 +0000 (09:18 +0200)
commitd14dbb5c6c4c068a2117fdd3ae73ade8d490f483
treea07437aecbdef4e4143aab218dd6a998e94f4fb3
parenta8eaf0fc14c07029a74c7cf97e60fb07d3628226
fuse: fix double request_end()

commit 87114373ea507895a62afb10d2910bd9adac35a8 upstream.

Refcounting of request is broken when fuse_abort_conn() is called and
request is on the fpq->io list:

 - ref is taken too late
 - then it is not dropped

Fixes: 0d8e84b0432b ("fuse: simplify request abort")
Cc: <stable@vger.kernel.org> # v4.2
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/fuse/dev.c