KASAN: use-after-free Read in ntfs

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.14	KASAN: use-after-free Read in ntfs_iget	C		done	2	1371d	1447d	1/1	fixed on 2021/03/23 15:18
linux-4.19	KASAN: use-after-free Read in ntfs_iget (2)	C		done	1	1250d	1250d	1/1	fixed on 2021/07/22 23:24
upstream	KASAN: use-after-free Read in ntfs_iget ntfs3	C	error	error	1	1460d	1456d	20/28	fixed on 2021/04/09 19:46
upstream	KASAN: use-after-free Read in ntfs_iget (2) ntfs3	C	inconclusive		2	1268d	1265d	20/28	fixed on 2021/11/10 00:50

Created	Duration	User	Repo	Result
2021/03/27 00:42	2h44m	bisect fix	linux-4.19.y	OK (1) job log
2021/02/25 00:06	23m	bisect fix	linux-4.19.y	OK (0) job log log
2021/01/25 22:57	22m	bisect fix	linux-4.19.y	OK (0) job log log

Created

Duration

User

Patch

Repo

Result

2021/03/27 00:42

2h44m

bisect fix

linux-4.19.y

OK (1) job log

2021/02/25 00:06

23m

bisect fix

linux-4.19.y

OK (0) job log log

2021/01/25 22:57

22m

bisect fix

linux-4.19.y

OK (0) job log log

ntfs: (device loop0): map_mft_record_page(): Mft record 0x4 is corrupt. Run chkdsk. ================================================================== BUG: KASAN: use-after-free in ntfs_read_locked_inode+0x47c6/0x5580 fs/ntfs/inode.c:670 Read of size 8 at addr ffff88808ad693d5 by task syz-executor122/8129 CPU: 1 PID: 8129 Comm: syz-executor122 Not tainted 4.19.163-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2fe lib/dump_stack.c:118 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256 kasan_report_error.cold+0x8a/0x1c7 mm/kasan/report.c:354 kasan_report mm/kasan/report.c:412 [inline] __asan_report_load_n_noabort+0x8b/0xa0 mm/kasan/report.c:443 ntfs_read_locked_inode+0x47c6/0x5580 fs/ntfs/inode.c:670 ntfs_iget+0x12d/0x180 fs/ntfs/inode.c:190 load_and_init_mft_mirror+0x34/0x350 fs/ntfs/super.c:1041 load_system_files fs/ntfs/super.c:1786 [inline] ntfs_fill_super+0xade/0x7e10 fs/ntfs/super.c:2908 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 mount_fs+0xa3/0x30c fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x113c/0x2f10 fs/namespace.c:2799 ksys_mount+0xcf/0x130 fs/namespace.c:3015 __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3026 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4494fa Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d a3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5a a3 fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007ffd9369a9c8 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffd9369aa20 RCX: 00000000004494fa RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffd9369a9e0 RBP: 00007ffd9369a9e0 R08: 00007ffd9369aa20 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000287 R12: 00000000000000ab R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 The buggy address belongs to the page: page:ffffea00022b5a40 count:0 mapcount:0 mapping:0000000000000000 index:0x1 flags: 0xfff00000000000() raw: 00fff00000000000 ffffea00022b5a88 ffffea00022b5a08 0000000000000000 raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88808ad69280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88808ad69300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff88808ad69380: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff88808ad69400: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88808ad69480: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================