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ovl: fix error handling in ovl_verify_set_fh()
authorAmir Goldstein <amir73il@gmail.com>
Wed, 10 Oct 2018 16:10:06 +0000 (19:10 +0300)
committerMiklos Szeredi <mszeredi@redhat.com>
Fri, 26 Oct 2018 21:34:39 +0000 (23:34 +0200)
commitbabf4770be0adc69e6d2de150f4040f175e24beb
tree74103db8c537314f7c56708ed36aa54961993fc1
parent84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d
ovl: fix error handling in ovl_verify_set_fh()

We hit a BUG on kfree of an ERR_PTR()...

Reported-by: syzbot+ff03fe05c717b82502d0@syzkaller.appspotmail.com
Fixes: 8b88a2e64036 ("ovl: verify upper root dir matches lower root dir")
Cc: <stable@vger.kernel.org> # v4.13
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
fs/overlayfs/namei.c