Pan Bian 2084ac6c50 exportfs: do not read dentry after free ... The function dentry_connected calls dput(dentry) to drop the previously acquired reference to dentry. In this case, dentry can be released. After that, IS_ROOT(dentry) checks the condition (dentry == dentry->d_parent), which may result in a use-after-free bug. This patch directly compares dentry with its parent obtained before dropping the reference. Fixes: a056cc8934c("exportfs: stop retrying once we race with rename/remove") Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>		2018-11-23 09:08:17 -05:00
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expfs.c	exportfs: do not read dentry after free	2018-11-23 09:08:17 -05:00
Makefile