ovl: fix error handling in ovl_verify_set_fh()

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commit babf4770be upstream.

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

Reported-by: syzbot+ff03fe05c717b82502d0@syzkaller.appspotmail.com
Fixes: 8b88a2e640 ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Amir Goldstein 2018-10-10 19:10:06 +03:00 • committed by Greg Kroah-Hartman

parent c8099dbf49

commit 37403ba3c4

1 changed files with 3 additions and 1 deletions

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fs/overlayfs/namei.c

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