Xiyu Yang 5765f42d9f configfs: fix config_item refcnt leak in configfs_rmdir() ... [ Upstream commit 8aebfffacf ] configfs_rmdir() invokes configfs_get_config_item(), which returns a reference of the specified config_item object to "parent_item" with increased refcnt. When configfs_rmdir() returns, local variable "parent_item" becomes invalid, so the refcount should be decreased to keep refcount balanced. The reference counting issue happens in one exception handling path of configfs_rmdir(). When down_write_killable() fails, the function forgets to decrease the refcnt increased by configfs_get_config_item(), causing a refcnt leak. Fix this issue by calling config_item_put() when down_write_killable() fails. Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn> Signed-off-by: Xin Tan <tanxin.ctf@gmail.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-05-27 16:42:56 +02:00
..
configfs_internal.h	configfs: new object reprsenting tree fragments	2019-11-12 19:18:17 +01:00
dir.c	configfs: fix config_item refcnt leak in configfs_rmdir()	2020-05-27 16:42:56 +02:00
file.c	configfs: provide exclusion between IO and removals	2019-11-12 19:18:17 +01:00
inode.c	fs: Replace current_fs_time() with current_time()	2016-09-27 21:06:22 -04:00
item.c	configfs: Introduce config_item_get_unless_zero()	2017-06-12 13:20:20 +02:00
Kconfig	configfs: change depends -> select SYSFS	2011-01-16 21:22:29 +00:00
Makefile
mount.c	mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros	2016-04-04 10:41:08 -07:00
symlink.c	configfs: fix a deadlock in configfs_symlink()	2019-11-12 19:18:18 +01:00