syzbot reported kmemleak as below:
BUG: memory leak
unreferenced object 0xffff8880122f1540 (size 32):
comm "a.out", pid 6664, jiffies
4294939771 (age 25.500s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 ed ff ed ff 00 00 00 00 ................
backtrace:
[<
ffffffff81b16052>] ntfs_init_fs_context+0x22/0x1c0
[<
ffffffff8164aaa7>] alloc_fs_context+0x217/0x430
[<
ffffffff81626dd4>] path_mount+0x704/0x1080
[<
ffffffff81627e7c>] __x64_sys_mount+0x18c/0x1d0
[<
ffffffff84593e14>] do_syscall_64+0x34/0xb0
[<
ffffffff84600087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
This patch fixes this issue by freeing mount options on error path of
ntfs_fill_super().
Reported-by: syzbot+9d67170b20e8f94351c8@syzkaller.appspotmail.com
Signed-off-by: Shigeru Yoshida <syoshida@redhat.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
* Free resources here.
* ntfs_fs_free will be called with fc->s_fs_info = NULL
*/
+ put_mount_options(sbi->options);
put_ntfs(sbi);
sb->s_fs_info = NULL;