loop2: detected capacity change from 0 to 1024
ext4: Unknown parameter '*'
loop2: detected capacity change from 0 to 1024
ext4: Unknown parameter '*'
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000032: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000190-0x0000000000000197]
CPU: 1 UID: 0 PID: 282 Comm: syz-executor.0 Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:perf_tp_event+0x175/0xe70
Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01
RSP: 0018:ffff888015eaf9c0 EFLAGS: 00010012
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: 0000000000000002
RDX: ffff888009e10000 RSI: ffffffff818995b7 RDI: 0000000000000191
RBP: ffff888015eafc30 R08: ffff88806cf31340 R09: ffffe8ffffd16348
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: 0000000000000014 R14: ffff88806cf31340 R15: dffffc0000000000
FS: 000055555e2c9400(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc3e81af18 CR3: 000000003b2a5000 CR4: 0000000000350ef0
Call Trace:
perf_trace_run_bpf_submit+0xef/0x180
perf_trace_preemptirq_template+0x259/0x430
trace_irq_disable.constprop.0+0xa6/0x100
_raw_spin_lock_irqsave+0x53/0x60
delete_object_full+0x17/0x70
kmem_cache_free+0x33a/0x540
putname.part.0+0x11b/0x160
user_path_at+0x70/0x90
__x64_sys_umount+0xf8/0x190
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbc514e0f87
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc3e81b658 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbc514e0f87
RDX: 00007ffc3e81b729 RSI: 000000000000000a RDI: 00007ffc3e81b720
RBP: 00007ffc3e81b720 R08: 00000000ffffffff R09: 00007ffc3e81b4f0
R10: 000055555e2cac7b R11: 0000000000000246 R12: 00007fbc51539105
R13: 00007ffc3e81c7e0 R14: 000055555e2cac20 R15: 00007ffc3e81c820
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:perf_tp_event+0x175/0xe70
Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01
RSP: 0018:ffff888015eaf9c0 EFLAGS: 00010012
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: 0000000000000002
RDX: ffff888009e10000 RSI: ffffffff818995b7 RDI: 0000000000000191
RBP: ffff888015eafc30 R08: ffff88806cf31340 R09: ffffe8ffffd16348
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: 0000000000000014 R14: ffff88806cf31340 R15: dffffc0000000000
FS: 000055555e2c9400(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc3e81af18 CR3: 000000003b2a5000 CR4: 0000000000350ef0
note: syz-executor.0[282] exited with irqs disabled
note: syz-executor.0[282] exited with preempt_count 1
------------[ cut here ]------------
BUG: Dentry 00000000609ec5b4{i=1,n=/} still in use (2) [unmount of sysfs sysfs]
WARNING: fs/dcache.c:1590 at umount_check+0x187/0x200, CPU#0: syz-executor.0/282
Modules linked in:
CPU: 0 UID: 0 PID: 282 Comm: syz-executor.0 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [D]=DIE, [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:umount_check+0x187/0x200
Code: 00 00 00 4c 8b 73 40 e8 87 0b b8 ff 4d 89 f9 45 89 e0 48 89 e9 41 55 4c 89 f2 48 89 ee 48 c7 c7 c0 9d d2 84 e8 ea 00 7e ff 90 <0f> 0b 90 90 58 e9 b6 fe ff ff e8 5a 0b b8 ff 44 89 e6 bf 01 00 00
RSP: 0018:ffff888015eafb88 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff88800b8104f0 RCX: ffffffff8139de70
RDX: ffff888009e10000 RSI: ffffffff8139de7e RDI: 0000000000000001
RBP: ffff88801ce42000 R08: 0000000000000001 R09: ffffed1002bd5f2c
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000002
R13: ffff88800a4f6648 R14: 0000000000000001 R15: ffffffff84d5af60
FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557acf8c58 CR3: 000000000cd3d000 CR4: 0000000000350ef0
Call Trace:
d_walk+0x11a/0x8e0
shrink_dcache_for_umount+0xb4/0x410
generic_shutdown_super+0x70/0x4a0
kill_anon_super+0x3a/0x60
kernfs_kill_sb+0x116/0x160
sysfs_kill_sb+0x22/0x40
deactivate_locked_super+0xbf/0x1a0
deactivate_super+0xb1/0xd0
cleanup_mnt+0x2df/0x430
task_work_run+0x172/0x280
do_exit+0x846/0x2970
make_task_dead+0x174/0x3b0
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7fbc514e0f87
Code: Unable to access opcode bytes at 0x7fbc514e0f5d.
RSP: 002b:00007ffc3e81b658 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbc514e0f87
RDX: 00007ffc3e81b729 RSI: 000000000000000a RDI: 00007ffc3e81b720
RBP: 00007ffc3e81b720 R08: 00000000ffffffff R09: 00007ffc3e81b4f0
R10: 000055555e2cac7b R11: 0000000000000246 R12: 00007fbc51539105
R13: 00007ffc3e81c7e0 R14: 000055555e2cac20 R15: 00007ffc3e81c820
irq event stamp: 184466
hardirqs last enabled at (184465): [] step_into+0x42e/0x2030
hardirqs last disabled at (184466): [] _raw_spin_lock_irqsave+0x53/0x60
softirqs last enabled at (184436): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (184335): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
VFS: Busy inodes after unmount of sysfs (sysfs)
WARNING: fs/super.c:651 at generic_shutdown_super+0x2ea/0x4a0, CPU#0: syz-executor.0/282
Modules linked in:
CPU: 0 UID: 0 PID: 282 Comm: syz-executor.0 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [D]=DIE, [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:generic_shutdown_super+0x2ea/0x4a0
Code: 28 48 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 b3 01 00 00 48 8b 55 00 48 8d b3 48 06 00 00 48 c7 c7 60 60 d2 84 e8 77 e4 83 ff 90 <0f> 0b 90 90 4c 8d bb 80 09 00 00 4c 89 ff e8 83 e6 07 03 4c 89 e2
RSP: 0018:ffff888015eafc70 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff88800a4f6000 RCX: ffffffff8139de70
RDX: ffff888009e10000 RSI: ffffffff8139de7e RDI: 0000000000000001
RBP: ffffffff85d4cb00 R08: 0000000000000001 R09: ffffed100d9c4801
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88800a4f69c0
R13: 0000000000000000 R14: ffff88800fb72198 R15: ffff88801e3b78c0
FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557acf8c58 CR3: 000000000cd3d000 CR4: 0000000000350ef0
Call Trace:
kill_anon_super+0x3a/0x60
kernfs_kill_sb+0x116/0x160
sysfs_kill_sb+0x22/0x40
deactivate_locked_super+0xbf/0x1a0
deactivate_super+0xb1/0xd0
cleanup_mnt+0x2df/0x430
task_work_run+0x172/0x280
do_exit+0x846/0x2970
make_task_dead+0x174/0x3b0
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7fbc514e0f87
Code: Unable to access opcode bytes at 0x7fbc514e0f5d.
RSP: 002b:00007ffc3e81b658 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fbc514e0f87
RDX: 00007ffc3e81b729 RSI: 000000000000000a RDI: 00007ffc3e81b720
RBP: 00007ffc3e81b720 R08: 00000000ffffffff R09: 00007ffc3e81b4f0
R10: 000055555e2cac7b R11: 0000000000000246 R12: 00007fbc51539105
R13: 00007ffc3e81c7e0 R14: 000055555e2cac20 R15: 00007ffc3e81c820
irq event stamp: 184466
hardirqs last enabled at (184465): [] step_into+0x42e/0x2030
hardirqs last disabled at (184466): [] _raw_spin_lock_irqsave+0x53/0x60
softirqs last enabled at (184436): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (184335): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
EXT4-fs warning (device sda): verify_group_input:136: Cannot add at group 21 (only 16 groups)
EXT4-fs warning (device sda): verify_group_input:136: Cannot add at group 21 (only 16 groups)
loop5: detected capacity change from 0 to 32767
loop5: detected capacity change from 0 to 32767
----------------
Code disassembly (best guess), 1 bytes skipped:
0: df 48 89 fisttps -0x77(%rax)
3: 85 a8 fd ff ff 48 test %ebp,0x48fffffd(%rax)
9: c1 e8 03 shr $0x3,%eax
c: 4c 01 e0 add %r12,%rax
f: 48 89 85 c8 fd ff ff mov %rax,-0x238(%rbp)
16: e8 c9 51 ea ff callq 0xffea51e4
1b: 48 8d bb f0 01 00 00 lea 0x1f0(%rbx),%rdi
22: 48 89 f8 mov %rdi,%rax
25: 48 c1 e8 03 shr $0x3,%rax
* 29: 42 0f b6 04 20 movzbl (%rax,%r12,1),%eax <-- trapping instruction
2e: 84 c0 test %al,%al
30: 74 08 je 0x3a
32: 3c 03 cmp $0x3,%al
34: 0f 8e c5 0b 00 00 jle 0xbff
3a: 44 rex.R
3b: 8b .byte 0x8b
3c: ab stos %eax,%es:(%rdi)
3d: f0 lock
3e: 01 .byte 0x1