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| author | Pan Bian <bianpan2016@163.com> | 2018-11-30 14:09:14 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-11-30 14:56:14 -0800 |
| commit | ce96a407adef126870b3f4a1b73529dd8aa80f49 (patch) | |
| tree | 09b2993b6d5f461e8e1045651661f59f69547063 /mm | |
| parent | 94570a413f01dda8938d980d36814eee295d2a58 (diff) | |
| download | linux-stable-ce96a407adef126870b3f4a1b73529dd8aa80f49.tar.gz linux-stable-ce96a407adef126870b3f4a1b73529dd8aa80f49.tar.bz2 linux-stable-ce96a407adef126870b3f4a1b73529dd8aa80f49.zip | |
hfs: do not free node before using
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>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions