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(parent: 6af1c84) | patch
securityfs: fix use-after-free on symlink traversal
authorAl Viro <viro@zeniv.linux.org.uk>
Wed, 10 Apr 2019 18:03:45 +0000 (14:03 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Wed, 10 Apr 2019 18:03:45 +0000 (14:03 -0400)
commit46c874419652bbefdfed17420fd6e88d8a31d9ec
tree9dc4a5c095b24ac15b73ab85c8f5542df63eec83tree | snapshot
parent6af1c849dfb1f1d326fbdd157c9bc882b921f450commit | diff
securityfs: fix use-after-free on symlink traversal

symlink body shouldn't be freed without an RCU delay.  Switch securityfs
to ->destroy_inode() and use of call_rcu(); free both the inode and symlink
body in the callback.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
security/inode.c diff | blob | history
John Crispins staging tree