[v5.15] UBSAN: shift-out-of-bounds in ntfs_fill_super

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: d9b4a0c83a2d Linux 5.15.98
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=132caaccc80000
kernel config: https://syzkaller.appspot.com/x/.config?x=2f8d9515b973b23b
dashboard link: https://syzkaller.appspot.com/bug?extid=010986becd65dbf9464b
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/037cabbd3313/disk-d9b4a0c8.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/9967e551eb34/vmlinux-d9b4a0c8.xz
kernel image: https://storage.googleapis.com/syzbot-assets/a050c7a4fd99/bzImage-d9b4a0c8.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+010986...@syzkaller.appspotmail.com

loop4: detected capacity change from 0 to 4096
================================================================================
UBSAN: shift-out-of-bounds in fs/ntfs3/super.c:736:25
shift exponent 64 is too large for 32-bit type 'unsigned int'
CPU: 1 PID: 385 Comm: syz-executor.4 Not tainted 5.15.98-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
ubsan_epilogue lib/ubsan.c:151 [inline]
__ubsan_handle_shift_out_of_bounds+0x3bf/0x420 lib/ubsan.c:321
ntfs_init_from_boot fs/ntfs3/super.c:736 [inline]
ntfs_fill_super+0x27e8/0x4450 fs/ntfs3/super.c:930
get_tree_bdev+0x3fe/0x620 fs/super.c:1294
vfs_get_tree+0x88/0x270 fs/super.c:1499
do_new_mount+0x28b/0xad0 fs/namespace.c:2994
do_mount fs/namespace.c:3337 [inline]
__do_sys_mount fs/namespace.c:3545 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3522
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fdbdecd462a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdbdd244f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 000000000001f3d6 RCX: 00007fdbdecd462a
RDX: 0000000020000180 RSI: 0000000020000040 RDI: 00007fdbdd244fe0
RBP: 00007fdbdd245020 R08: 00007fdbdd245020 R09: 0000000001004018
R10: 0000000001004018 R11: 0000000000000202 R12: 0000000020000180
R13: 0000000020000040 R14: 00007fdbdd244fe0 R15: 0000000020000100
</TASK>
================================================================================


---
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[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 8a923980a190 Linux 6.1.16
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=16ddbea2c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=fc32d7322291d081
dashboard link: https://syzkaller.appspot.com/bug?extid=b40fb1604bbe241ef320

compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2

userspace arch: arm64

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:

disk image: https://storage.googleapis.com/syzbot-assets/bf09a4a426d0/disk-8a923980.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/99e88c1c3e26/vmlinux-8a923980.xz
kernel image: https://storage.googleapis.com/syzbot-assets/d13a720e0836/Image-8a923980.gz.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:

Reported-by: syzbot+b40fb1...@syzkaller.appspotmail.com

loop3: detected capacity change from 0 to 4096

================================================================================
UBSAN: shift-out-of-bounds in fs/ntfs3/super.c:736:25

shift exponent 127 is too large for 32-bit type 'unsigned int'
CPU: 1 PID: 18015 Comm: syz-executor.3 Not tainted 6.1.16-syzkaller #0

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023

Call trace:
dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
dump_stack+0x1c/0x5c lib/dump_stack.c:113
ubsan_epilogue lib/ubsan.c:151 [inline]
__ubsan_handle_shift_out_of_bounds+0x2f4/0x36c lib/ubsan.c:321
ntfs_init_from_boot fs/ntfs3/super.c:736 [inline]
ntfs_fill_super+0x20ec/0x3a04 fs/ntfs3/super.c:935
get_tree_bdev+0x360/0x54c fs/super.c:1337
ntfs_fs_get_tree+0x28/0x38 fs/ntfs3/super.c:1359
vfs_get_tree+0x90/0x274 fs/super.c:1544
do_new_mount+0x25c/0x8c8 fs/namespace.c:3040
path_mount+0x590/0xe58 fs/namespace.c:3370
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__arm64_sys_mount+0x45c/0x594 fs/namespace.c:3568
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581

[syzbot]

syzbot has found a reproducer for the following issue on:

HEAD commit: ca48fc16c493 Linux 6.1.27
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=16a2cb88280000
kernel config: https://syzkaller.appspot.com/x/.config?x=aea4bb7802570997

dashboard link: https://syzkaller.appspot.com/bug?extid=b40fb1604bbe241ef320
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64

syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12e77938280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17fccf3c280000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/ec11c1903c52/disk-ca48fc16.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/8ce41c1ad391/vmlinux-ca48fc16.xz
kernel image: https://storage.googleapis.com/syzbot-assets/affba5631cad/Image-ca48fc16.gz.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/e0f4e1d4d436/mount_0.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+b40fb1...@syzkaller.appspotmail.com

loop0: detected capacity change from 0 to 4096
================================================================================
UBSAN: shift-out-of-bounds in fs/ntfs3/super.c:743:25
shift exponent 56 is too large for 32-bit type 'unsigned int'
CPU: 0 PID: 4217 Comm: syz-executor271 Not tainted 6.1.27-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023

Call trace:
dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
dump_stack+0x1c/0x5c lib/dump_stack.c:113
ubsan_epilogue lib/ubsan.c:151 [inline]
__ubsan_handle_shift_out_of_bounds+0x2f4/0x36c lib/ubsan.c:321

ntfs_init_from_boot fs/ntfs3/super.c:743 [inline]
ntfs_fill_super+0x2428/0x3a04 fs/ntfs3/super.c:935
get_tree_bdev+0x360/0x54c fs/super.c:1346
ntfs_fs_get_tree+0x28/0x38 fs/ntfs3/super.c:1359
vfs_get_tree+0x90/0x274 fs/super.c:1553

do_new_mount+0x25c/0x8c8 fs/namespace.c:3040
path_mount+0x590/0xe58 fs/namespace.c:3370
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__arm64_sys_mount+0x45c/0x594 fs/namespace.c:3568
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
================================================================================

================================================================================
UBSAN: shift-out-of-bounds in fs/ntfs3/super.c:804:12
shift exponent 56 is too large for 32-bit type 'unsigned int'
CPU: 0 PID: 4217 Comm: syz-executor271 Not tainted 6.1.27-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023

Call trace:
dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
dump_stack+0x1c/0x5c lib/dump_stack.c:113
ubsan_epilogue lib/ubsan.c:151 [inline]
__ubsan_handle_shift_out_of_bounds+0x2f4/0x36c lib/ubsan.c:321

ntfs_init_from_boot fs/ntfs3/super.c:804 [inline]
ntfs_fill_super+0x2a64/0x3a04 fs/ntfs3/super.c:935
get_tree_bdev+0x360/0x54c fs/super.c:1346
ntfs_fs_get_tree+0x28/0x38 fs/ntfs3/super.c:1359
vfs_get_tree+0x90/0x274 fs/super.c:1553

do_new_mount+0x25c/0x8c8 fs/namespace.c:3040
path_mount+0x590/0xe58 fs/namespace.c:3370
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__arm64_sys_mount+0x45c/0x594 fs/namespace.c:3568
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
================================================================================

ntfs3: loop0: Failed to load $MFT.


---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.

[syzbot]

syzbot has found a reproducer for the following issue on:

HEAD commit: 8a7f2a5c5aa1 Linux 5.15.110
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=10ca955c280000
kernel config: https://syzkaller.appspot.com/x/.config?x=7e93d602da27af41

dashboard link: https://syzkaller.appspot.com/bug?extid=010986becd65dbf9464b
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2

userspace arch: arm64
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11d41f74280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=122e4da8280000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/16bea75b636d/disk-8a7f2a5c.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/3b169e33dcf2/vmlinux-8a7f2a5c.xz
kernel image: https://storage.googleapis.com/syzbot-assets/190d08a00950/Image-8a7f2a5c.gz.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/6d85a81dad1b/mount_0.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+010986...@syzkaller.appspotmail.com

loop0: detected capacity change from 0 to 4096
================================================================================

UBSAN: shift-out-of-bounds in fs/ntfs3/super.c:743:25

shift exponent 56 is too large for 32-bit type 'unsigned int'
CPU: 1 PID: 3963 Comm: syz-executor230 Not tainted 5.15.110-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call trace:
dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216

__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106

dump_stack+0x1c/0x58 lib/dump_stack.c:113
ubsan_epilogue lib/ubsan.c:151 [inline]
__ubsan_handle_shift_out_of_bounds+0x2f8/0x378 lib/ubsan.c:321
ntfs_init_from_boot fs/ntfs3/super.c:743 [inline]
ntfs_fill_super+0x1f88/0x33ec fs/ntfs3/super.c:930
get_tree_bdev+0x360/0x54c fs/super.c:1303
ntfs_fs_get_tree+0x28/0x38 fs/ntfs3/super.c:1354
vfs_get_tree+0x90/0x274 fs/super.c:1508
do_new_mount+0x25c/0x8c8 fs/namespace.c:2994
path_mount+0x590/0x104c fs/namespace.c:3324

do_mount fs/namespace.c:3337 [inline]
__do_sys_mount fs/namespace.c:3545 [inline]

__se_sys_mount fs/namespace.c:3522 [inline]
__arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3522
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
================================================================================
================================================================================

UBSAN: shift-out-of-bounds in fs/ntfs3/super.c:804:12

shift exponent 56 is too large for 32-bit type 'unsigned int'
CPU: 0 PID: 3963 Comm: syz-executor230 Not tainted 5.15.110-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call trace:
dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216

__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106

dump_stack+0x1c/0x58 lib/dump_stack.c:113
ubsan_epilogue lib/ubsan.c:151 [inline]
__ubsan_handle_shift_out_of_bounds+0x2f8/0x378 lib/ubsan.c:321
ntfs_init_from_boot fs/ntfs3/super.c:804 [inline]
ntfs_fill_super+0x2534/0x33ec fs/ntfs3/super.c:930
get_tree_bdev+0x360/0x54c fs/super.c:1303
ntfs_fs_get_tree+0x28/0x38 fs/ntfs3/super.c:1354
vfs_get_tree+0x90/0x274 fs/super.c:1508
do_new_mount+0x25c/0x8c8 fs/namespace.c:2994
path_mount+0x590/0x104c fs/namespace.c:3324

do_mount fs/namespace.c:3337 [inline]
__do_sys_mount fs/namespace.c:3545 [inline]

__se_sys_mount fs/namespace.c:3522 [inline]
__arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3522
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

[syzbot]

syzbot suspects this issue could be fixed by backporting the following commit:

commit 91a4b1ee78cb100b19b70f077c247f211110348f
git tree: upstream
Author: Konstantin Komarov <almaz.ale...@paragon-software.com>
Date: Fri Jun 30 12:25:25 2023 +0000

fs/ntfs3: Fix shift-out-of-bounds in ntfs_fill_super

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1510f84ee80000
kernel config: https://syzkaller.appspot.com/x/.config?x=ffd22c928742e176
dashboard link: https://syzkaller.appspot.com/bug?extid=010986becd65dbf9464b
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1666514ee80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=179e13aee80000


Please keep in mind that other backports might be required as well.

For information about bisection process see: https://goo.gl/tpsmEJ#bisection