Al Viro 97c4f3a885 ceph: fix use-after-free on symlink traversal ...

[ Upstream commit daf5cc27ee ]

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>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>

2019-05-04 09:20:21 +02:00

62 KiB

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