From 7a0e4048bfd16848ac115b17f49a3df7993a2fac Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 9 Dec 2019 11:10:32 +0000 Subject: fs/adfs: newdir: improve directory validation Check that the lastmask and reserved fields are all zero, as per the documentation. Signed-off-by: Russell King Signed-off-by: Al Viro --- fs/adfs/dir_f.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/adfs/dir_f.c b/fs/adfs/dir_f.c index 196706d581bf..ebe8616ee533 100644 --- a/fs/adfs/dir_f.c +++ b/fs/adfs/dir_f.c @@ -127,6 +127,7 @@ static int adfs_f_validate(struct adfs_dir *dir) struct adfs_newdirtail *tail = dir->newtail; if (head->startmasseq != tail->endmasseq || + tail->dirlastmask || tail->reserved[0] || tail->reserved[1] || (memcmp(&head->startname, "Nick", 4) && memcmp(&head->startname, "Hugo", 4)) || memcmp(&head->startname, &tail->endname, 4) || -- cgit