diff options
| author | Pan Bian <bianpan2016@163.com> | 2018-11-30 14:09:14 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-17 09:38:35 +0100 |
| commit | 5cf41549e60a458b72295715de6f3ed5b9216361 (patch) | |
| tree | e438e5d4e8248ccd3e697f05f62af444fd6e218b /fs/hfsplus | |
| parent | 12daef1de3584e4dd1f6785202dbb441afb48bf8 (diff) | |
hfs: do not free node before using
[ Upstream commit ce96a407adef126870b3f4a1b73529dd8aa80f49 ]
hfs_bmap_free() frees the node via hfs_bnode_put(node). However, it
then reads node->this when dumping error message on an error path, which
may result in a use-after-free bug. This patch frees the node only when
it is never again used.
Link: http://lkml.kernel.org/r/1542963889-128825-1-git-send-email-bianpan2016@163.com
Fixes: a1185ffa2fc ("HFS rewrite")
Signed-off-by: Pan Bian <bianpan2016@163.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Joe Perches <joe@perches.com>
Cc: Ernesto A. Fernandez <ernesto.mnd.fernandez@gmail.com>
Cc: Viacheslav Dubeyko <slava@dubeyko.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/hfsplus')
0 files changed, 0 insertions, 0 deletions