tree 2b1e9ff0c8d4ffeab24361d21b4d264c3f7264dc
parent ce96a407adef126870b3f4a1b73529dd8aa80f49
author Pan Bian <bianpan2016@163.com> 1543615758 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1543618574 -0800

hfsplus: do not free node before using

hfs_bmap_free() frees 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 node only when it is
never used.

Link: http://lkml.kernel.org/r/1543053441-66942-1-git-send-email-bianpan2016@163.com
Signed-off-by: Pan Bian <bianpan2016@163.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Ernesto A. Fernandez <ernesto.mnd.fernandez@gmail.com>
Cc: Joe Perches <joe@perches.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>