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(parent: 59accda) | patch
ceph: fix use-after-free on symlink traversal
authorAl Viro <viro@zeniv.linux.org.uk>
Tue, 26 Mar 2019 01:38:58 +0000 (01:38 +0000)
committerIlya Dryomov <idryomov@gmail.com>
Wed, 27 Mar 2019 18:00:37 +0000 (19:00 +0100)
commitf3784816a94aa9c1f741c4ea669c8fa90cd3180b
tree388c0f95be488d43a4576b871657e38dfc7740e2tree | snapshot
parent59accda0e1171a6a4790c1e9cfe9c7c601b14412commit | diff
ceph: fix use-after-free on symlink traversal

free the symlink body after the same RCU delay we have for freeing the
struct inode itself, so that traversal during RCU pathwalk wouldn't step
into freed memory.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
fs/ceph/inode.c diff | blob | history
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