Re: [syzbot] [ntfs3?] WARNING in wnd_add_free_ext (2)

syzbot
2023-08-06T03:48:30Z

syzbot has found a reproducer for the following issue on:

HEAD commit: 86d7896480b0 Merge branch 'for-next/core' into for-kernelci
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output: https://syzkaller.appspot.com/x/log.txt?x=17f7a295a80000
kernel config: https://syzkaller.appspot.com/x/.config?x=21762bc8221a1ed3
dashboard link: https://syzkaller.appspot.com/bug?extid=5b2f934f08ab03d473ff
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: arm64
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15f0b171a80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=129e5713a80000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/136ba9602d1f/disk-86d78964.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/dcd3ab5ec39d/vmlinux-86d78964.xz
kernel image: https://storage.googleapis.com/syzbot-assets/3041f85d1a44/Image-86d78964.gz.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/02dc44470901/mount_0.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+5b2f934f08ab03d473ff@syzkaller.appspotmail.com

el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:139
do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:188
el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5986 at fs/ntfs3/bitmap.c:216 wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
Modules linked in:
CPU: 0 PID: 5986 Comm: syz-executor496 Not tainted 6.5.0-rc4-syzkaller-g86d7896480b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
lr : wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
sp : ffff8000969a71e0
x29: ffff8000969a7210 x28: 1fffe0001c052c4b x27: dfff800000000000
x26: dfff800000000000 x25: ffff0000e0296278 x24: ffff0000e02961e0
x23: ffff0000e0296258 x22: 00000000000001e7 x21: ffff0000dbdae2d0
x20: ffff0000e0296240 x19: 00000000000001e7 x18: 1fffe0003683adc6
x17: 0000000000000000 x16: ffff80008a57089c x15: 0000000000000001
x14: 000000008a56c67c x13: 0000000071fb52ff x12: 00000000a7effed4
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000c583d340 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000001
x2 : ffffffffffffffc0 x1 : 00000000000001e7 x0 : 00000000000001e7
Call trace:
wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
wnd_set_free+0x570/0x5cc fs/ntfs3/bitmap.c:749
mark_as_free_ex+0x134/0x310 fs/ntfs3/fsntfs.c:2485
run_deallocate_ex+0x1e0/0x4ac fs/ntfs3/attrib.c:122
attr_set_size+0x1128/0x342c fs/ntfs3/attrib.c:750
ntfs_truncate fs/ntfs3/file.c:393 [inline]
ntfs3_setattr+0x424/0x8fc fs/ntfs3/file.c:682
notify_change+0xa84/0xd20 fs/attr.c:483
do_truncate+0x1c0/0x28c fs/open.c:66
vfs_truncate+0x2b8/0x360 fs/open.c:112
do_sys_truncate+0xec/0x1b4 fs/open.c:135
__do_sys_truncate fs/open.c:147 [inline]
__se_sys_truncate fs/open.c:145 [inline]
__arm64_sys_truncate+0x5c/0x70 fs/open.c:145
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:139
do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:188
el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 20656
hardirqs last enabled at (20655): [<ffff800080b723d4>] lookup_bh_lru fs/buffer.c:1403 [inline]
hardirqs last enabled at (20655): [<ffff800080b723d4>] __find_get_block+0x1a0/0xd18 fs/buffer.c:1415
hardirqs last disabled at (20656): [<ffff80008a56c1dc>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:407
softirqs last enabled at (19642): [<ffff8000800218ec>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last enabled at (19642): [<ffff8000800218ec>] __do_softirq+0xac0/0xd54 kernel/softirq.c:582
softirqs last disabled at (19633): [<ffff80008002aad4>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5986 at fs/ntfs3/bitmap.c:216 wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
Modules linked in:
CPU: 0 PID: 5986 Comm: syz-executor496 Tainted: G W 6.5.0-rc4-syzkaller-g86d7896480b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
lr : wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
sp : ffff8000969a71e0
x29: ffff8000969a7210 x28: 1fffe0001c052c57 x27: dfff800000000000
x26: dfff800000000000 x25: ffff0000e02962d8 x24: ffff0000e02961e0
x23: ffff0000e02962b8 x22: 00000000000001e7 x21: ffff0000dbdae2d0
x20: ffff0000e02962a0 x19: 00000000000001e7 x18: 1fffe0003683adc6
x17: 0000000000000000 x16: ffff80008a57089c x15: 0000000000000001
x14: 000000008a56c67c x13: 0000000071fb52ff x12: 00000000a7effed4
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000c583d340 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000001
x2 : ffffffffffffffc0 x1 : 00000000000001e7 x0 : 00000000000001e7
Call trace:
wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
wnd_set_free+0x570/0x5cc fs/ntfs3/bitmap.c:749
mark_as_free_ex+0x134/0x310 fs/ntfs3/fsntfs.c:2485
run_deallocate_ex+0x1e0/0x4ac fs/ntfs3/attrib.c:122
attr_set_size+0x1128/0x342c fs/ntfs3/attrib.c:750
ntfs_truncate fs/ntfs3/file.c:393 [inline]
ntfs3_setattr+0x424/0x8fc fs/ntfs3/file.c:682
notify_change+0xa84/0xd20 fs/attr.c:483
do_truncate+0x1c0/0x28c fs/open.c:66
vfs_truncate+0x2b8/0x360 fs/open.c:112
do_sys_truncate+0xec/0x1b4 fs/open.c:135
__do_sys_truncate fs/open.c:147 [inline]
__se_sys_truncate fs/open.c:145 [inline]
__arm64_sys_truncate+0x5c/0x70 fs/open.c:145
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:139
do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:188
el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 21126
hardirqs last enabled at (21125): [<ffff800080b723d4>] lookup_bh_lru fs/buffer.c:1403 [inline]
hardirqs last enabled at (21125): [<ffff800080b723d4>] __find_get_block+0x1a0/0xd18 fs/buffer.c:1415
hardirqs last disabled at (21126): [<ffff80008a56c1dc>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:407
softirqs last enabled at (20772): [<ffff8000800218ec>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last enabled at (20772): [<ffff8000800218ec>] __do_softirq+0xac0/0xd54 kernel/softirq.c:582
softirqs last disabled at (20659): [<ffff80008002aad4>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5986 at fs/ntfs3/bitmap.c:216 wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
Modules linked in:
CPU: 0 PID: 5986 Comm: syz-executor496 Tainted: G W 6.5.0-rc4-syzkaller-g86d7896480b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
lr : wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
sp : ffff8000969a71e0
x29: ffff8000969a7210 x28: 1fffe0001c052c63 x27: dfff800000000000
x26: dfff800000000000 x25: ffff0000e0296338 x24: ffff0000e02961e0
x23: ffff0000e0296318 x22: 00000000000001e7 x21: ffff0000dbdae2d0
x20: ffff0000e0296300 x19: 00000000000001e7 x18: 1fffe0003683adc6
x17: 0000000000000000 x16: ffff80008a57089c x15: 0000000000000001
x14: 000000008a56c67c x13: 0000000071fb52ff x12: 00000000a7effed4
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000c583d340 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000001
x2 : ffffffffffffffc0 x1 : 00000000000001e7 x0 : 00000000000001e7
Call trace:
wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
wnd_set_free+0x570/0x5cc fs/ntfs3/bitmap.c:749
mark_as_free_ex+0x134/0x310 fs/ntfs3/fsntfs.c:2485
run_deallocate_ex+0x1e0/0x4ac fs/ntfs3/attrib.c:122
attr_set_size+0x1128/0x342c fs/ntfs3/attrib.c:750
ntfs_truncate fs/ntfs3/file.c:393 [inline]
ntfs3_setattr+0x424/0x8fc fs/ntfs3/file.c:682
notify_change+0xa84/0xd20 fs/attr.c:483
do_truncate+0x1c0/0x28c fs/open.c:66
vfs_truncate+0x2b8/0x360 fs/open.c:112
do_sys_truncate+0xec/0x1b4 fs/open.c:135
__do_sys_truncate fs/open.c:147 [inline]
__se_sys_truncate fs/open.c:145 [inline]
__arm64_sys_truncate+0x5c/0x70 fs/open.c:145
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:139
do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:188
el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 21568
hardirqs last enabled at (21567): [<ffff800080b723d4>] lookup_bh_lru fs/buffer.c:1403 [inline]
hardirqs last enabled at (21567): [<ffff800080b723d4>] __find_get_block+0x1a0/0xd18 fs/buffer.c:1415
hardirqs last disabled at (21568): [<ffff80008a56c1dc>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:407
softirqs last enabled at (21214): [<ffff8000800218ec>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last enabled at (21214): [<ffff8000800218ec>] __do_softirq+0xac0/0xd54 kernel/softirq.c:582
softirqs last disabled at (21129): [<ffff80008002aad4>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5986 at fs/ntfs3/bitmap.c:216 wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
Modules linked in:
CPU: 0 PID: 5986 Comm: syz-executor496 Tainted: G W 6.5.0-rc4-syzkaller-g86d7896480b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
lr : wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
sp : ffff8000969a71e0
x29: ffff8000969a7210 x28: 1fffe0001c052c6f x27: dfff800000000000
x26: dfff800000000000 x25: ffff0000e0296398 x24: ffff0000e02961e0
x23: ffff0000e0296378 x22: 00000000000001e7 x21: ffff0000dbdae2d0
x20: ffff0000e0296360 x19: 00000000000001e7 x18: 1fffe0003683adc6
x17: 0000000000000000 x16: ffff80008a57089c x15: 0000000000000001
x14: 000000008a56c67c x13: 0000000071fb52ff x12: 00000000a7effed4
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000c583d340 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000001
x2 : ffffffffffffffc0 x1 : 00000000000001e7 x0 : 00000000000001e7
Call trace:
wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
wnd_set_free+0x570/0x5cc fs/ntfs3/bitmap.c:749
mark_as_free_ex+0x134/0x310 fs/ntfs3/fsntfs.c:2485
run_deallocate_ex+0x1e0/0x4ac fs/ntfs3/attrib.c:122
attr_set_size+0x1128/0x342c fs/ntfs3/attrib.c:750
ntfs_truncate fs/ntfs3/file.c:393 [inline]
ntfs3_setattr+0x424/0x8fc fs/ntfs3/file.c:682
notify_change+0xa84/0xd20 fs/attr.c:483
do_truncate+0x1c0/0x28c fs/open.c:66
vfs_truncate+0x2b8/0x360 fs/open.c:112
do_sys_truncate+0xec/0x1b4 fs/open.c:135
__do_sys_truncate fs/open.c:147 [inline]
__se_sys_truncate fs/open.c:145 [inline]
__arm64_sys_truncate+0x5c/0x70 fs/open.c:145
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:139
do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:188
el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 21948
hardirqs last enabled at (21947): [<ffff800080b723d4>] lookup_bh_lru fs/buffer.c:1403 [inline]
hardirqs last enabled at (21947): [<ffff800080b723d4>] __find_get_block+0x1a0/0xd18 fs/buffer.c:1415
hardirqs last disabled at (21948): [<ffff80008a56c1dc>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:407
softirqs last enabled at (21584): [<ffff8000800218ec>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last enabled at (21584): [<ffff8000800218ec>] __do_softirq+0xac0/0xd54 kernel/softirq.c:582
softirqs last disabled at (21571): [<ffff80008002aad4>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5986 at fs/ntfs3/bitmap.c:216 wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
Modules linked in:
CPU: 0 PID: 5986 Comm: syz-executor496 Tainted: G W 6.5.0-rc4-syzkaller-g86d7896480b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
lr : wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
sp : ffff8000969a71e0
x29: ffff8000969a7210 x28: 1fffe0001c052c7b x27: dfff800000000000
x26: dfff800000000000 x25: ffff0000e02963f8 x24: ffff0000e02961e0
x23: ffff0000e02963d8 x22: 00000000000001e7 x21: ffff0000dbdae2d0
x20: ffff0000e02963c0 x19: 00000000000001e7 x18: 1fffe0003683adc6
x17: 0000000000000000 x16: ffff80008a57089c x15: 0000000000000001
x14: 000000008a56c67c x13: 0000000071fb52ff x12: 00000000a7effed4
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000c583d340 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000001
x2 : ffffffffffffffc0 x1 : 00000000000001e7 x0 : 00000000000001e7
Call trace:
wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
wnd_set_free+0x570/0x5cc fs/ntfs3/bitmap.c:749
mark_as_free_ex+0x134/0x310 fs/ntfs3/fsntfs.c:2485
run_deallocate_ex+0x1e0/0x4ac fs/ntfs3/attrib.c:122
attr_set_size+0x1128/0x342c fs/ntfs3/attrib.c:750
ntfs_truncate fs/ntfs3/file.c:393 [inline]
ntfs3_setattr+0x424/0x8fc fs/ntfs3/file.c:682
notify_change+0xa84/0xd20 fs/attr.c:483
do_truncate+0x1c0/0x28c fs/open.c:66
vfs_truncate+0x2b8/0x360 fs/open.c:112
do_sys_truncate+0xec/0x1b4 fs/open.c:135
__do_sys_truncate fs/open.c:147 [inline]
__se_sys_truncate fs/open.c:145 [inline]
__arm64_sys_truncate+0x5c/0x70 fs/open.c:145
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:139
do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:188
el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 22332
hardirqs last enabled at (22331): [<ffff800080b723d4>] lookup_bh_lru fs/buffer.c:1403 [inline]
hardirqs last enabled at (22331): [<ffff800080b723d4>] __find_get_block+0x1a0/0xd18 fs/buffer.c:1415
hardirqs last disabled at (22332): [<ffff80008a56c1dc>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:407
softirqs last enabled at (21958): [<ffff8000800218ec>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last enabled at (21958): [<ffff8000800218ec>] __do_softirq+0xac0/0xd54 kernel/softirq.c:582
softirqs last disabled at (21951): [<ffff80008002aad4>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5986 at fs/ntfs3/bitmap.c:216 wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
Modules linked in:
CPU: 0 PID: 5986 Comm: syz-executor496 Tainted: G W 6.5.0-rc4-syzkaller-g86d7896480b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
lr : wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
sp : ffff8000969a71e0
x29: ffff8000969a7210 x28: 1fffe0001c052c87 x27: dfff800000000000
x26: dfff800000000000 x25: ffff0000e0296458 x24: ffff0000e02961e0
x23: ffff0000e0296438 x22: 00000000000001e7 x21: ffff0000dbdae2d0
x20: ffff0000e0296420 x19: 00000000000001e7 x18: 1fffe0003683adc6
x17: 0000000000000000 x16: ffff80008a57089c x15: 0000000000000001
x14: 000000008a56c67c x13: 0000000071fb52ff x12: 00000000a7effed4
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000c583d340 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000001
x2 : ffffffffffffffc0 x1 : 00000000000001e7 x0 : 00000000000001e7
Call trace:
wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
wnd_set_free+0x570/0x5cc fs/ntfs3/bitmap.c:749
mark_as_free_ex+0x134/0x310 fs/ntfs3/fsntfs.c:2485
run_deallocate_ex+0x1e0/0x4ac fs/ntfs3/attrib.c:122
attr_set_size+0x1128/0x342c fs/ntfs3/attrib.c:750
ntfs_truncate fs/ntfs3/file.c:393 [inline]
ntfs3_setattr+0x424/0x8fc fs/ntfs3/file.c:682
notify_change+0xa84/0xd20 fs/attr.c:483
do_truncate+0x1c0/0x28c fs/open.c:66
vfs_truncate+0x2b8/0x360 fs/open.c:112
do_sys_truncate+0xec/0x1b4 fs/open.c:135
__do_sys_truncate fs/open.c:147 [inline]
__se_sys_truncate fs/open.c:145 [inline]
__arm64_sys_truncate+0x5c/0x70 fs/open.c:145
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:139
do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:188
el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 22732
hardirqs last enabled at (22731): [<ffff800080b723d4>] lookup_bh_lru fs/buffer.c:1403 [inline]
hardirqs last enabled at (22731): [<ffff800080b723d4>] __find_get_block+0x1a0/0xd18 fs/buffer.c:1415
hardirqs last disabled at (22732): [<ffff80008a56c1dc>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:407
softirqs last enabled at (22354): [<ffff8000800218ec>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last enabled at (22354): [<ffff8000800218ec>] __do_softirq+0xac0/0xd54 kernel/softirq.c:582
softirqs last disabled at (22335): [<ffff80008002aad4>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5986 at fs/ntfs3/bitmap.c:216 wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
Modules linked in:
CPU: 0 PID: 5986 Comm: syz-executor496 Tainted: G W 6.5.0-rc4-syzkaller-g86d7896480b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
lr : wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
sp : ffff8000969a71e0
x29: ffff8000969a7210 x28: 1fffe0001c052c93 x27: dfff800000000000
x26: dfff800000000000 x25: ffff0000e02964b8 x24: ffff0000e02961e0
x23: ffff0000e0296498 x22: 00000000000001e7 x21: ffff0000dbdae2d0
x20: ffff0000e0296480 x19: 00000000000001e7 x18: 1fffe0003683adc6
x17: 0000000000000000 x16: ffff80008a57089c x15: 0000000000000001
x14: 000000008a56c67c x13: 0000000071fb52ff x12: 00000000a7effed4
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000c583d340 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000001
x2 : ffffffffffffffc0 x1 : 00000000000001e7 x0 : 00000000000001e7
Call trace:
wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
wnd_set_free+0x570/0x5cc fs/ntfs3/bitmap.c:749
mark_as_free_ex+0x134/0x310 fs/ntfs3/fsntfs.c:2485
run_deallocate_ex+0x1e0/0x4ac fs/ntfs3/attrib.c:122
attr_set_size+0x1128/0x342c fs/ntfs3/attrib.c:750
ntfs_truncate fs/ntfs3/file.c:393 [inline]
ntfs3_setattr+0x424/0x8fc fs/ntfs3/file.c:682
notify_change+0xa84/0xd20 fs/attr.c:483
do_truncate+0x1c0/0x28c fs/open.c:66
vfs_truncate+0x2b8/0x360 fs/open.c:112
do_sys_truncate+0xec/0x1b4 fs/open.c:135
__do_sys_truncate fs/open.c:147 [inline]
__se_sys_truncate fs/open.c:145 [inline]
__arm64_sys_truncate+0x5c/0x70 fs/open.c:145
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:139
do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:188
el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 23126
hardirqs last enabled at (23125): [<ffff800080b723d4>] lookup_bh_lru fs/buffer.c:1403 [inline]
hardirqs last enabled at (23125): [<ffff800080b723d4>] __find_get_block+0x1a0/0xd18 fs/buffer.c:1415
hardirqs last disabled at (23126): [<ffff80008a56c1dc>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:407
softirqs last enabled at (22744): [<ffff8000800218ec>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last enabled at (22744): [<ffff8000800218ec>] __do_softirq+0xac0/0xd54 kernel/softirq.c:582
softirqs last disabled at (22735): [<ffff80008002aad4>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5986 at fs/ntfs3/bitmap.c:216 wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
Modules linked in:
CPU: 0 PID: 5986 Comm: syz-executor496 Tainted: G W 6.5.0-rc4-syzkaller-g86d7896480b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
lr : wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
sp : ffff8000969a71e0
x29: ffff8000969a7210 x28: 1fffe0001c052c9f x27: dfff800000000000
x26: dfff800000000000 x25: ffff0000e0296518 x24: ffff0000e02961e0
x23: ffff0000e02964f8 x22: 00000000000001e7 x21: ffff0000dbdae2d0
x20: ffff0000e02964e0 x19: 00000000000001e7 x18: 1fffe0003683adc6
x17: 0000000000000000 x16: ffff80008a57089c x15: 0000000000000001
x14: 1ffff00011d18abf x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000c583d340 x7 : 0000000000000000 x6 : ffff800080063870
x5 : ffff0000d477e9c8 x4 : 0000000000000000 x3 : 0000000000000000
x2 : ffffffffffffffc0 x1 : 00000000000001e7 x0 : 00000000000001e7
Call trace:
wnd_add_free_ext+0x9b0/0xc00 fs/ntfs3/bitmap.c:351
wnd_set_free+0x570/0x5cc fs/ntfs3/bitmap.c:749
mark_as_free_ex+0x1c8/0x310 fs/ntfs3/fsntfs.c:2495
run_deallocate_ex+0x1e0/0x4ac fs/ntfs3/attrib.c:122
attr_set_size+0x1128/0x342c fs/ntfs3/attrib.c:750
ntfs_truncate fs/ntfs3/file.c:393 [inline]
ntfs3_setattr+0x424/0x8fc fs/ntfs3/file.c:682
notify_change+0xa84/0xd20 fs/attr.c:483
do_truncate+0x1c0/0x28c fs/open.c:66
vfs_truncate+0x2b8/0x360 fs/open.c:112
do_sys_truncate+0xec/0x1b4 fs/open.c:135
__do_sys_truncate fs/open.c:147 [inline]
__se_sys_truncate fs/open.c:145 [inline]
__arm64_sys_truncate+0x5c/0x70 fs/open.c:145
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:139
do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:188
el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 23528
hardirqs last enabled at (23527): [<ffff80008a65a7c0>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last enabled at (23527): [<ffff80008a65a7c0>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194
hardirqs last disabled at (23528): [<ffff80008a56c1dc>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:407
softirqs last enabled at (23142): [<ffff8000800218ec>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last enabled at (23142): [<ffff8000800218ec>] __do_softirq+0xac0/0xd54 kernel/softirq.c:582
softirqs last disabled at (23129): [<ffff80008002aad4>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
---[ end trace 0000000000000000 ]---

---
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.