sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 0, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
Oops: general protection fault, probably for non-canonical address 0xdffffc0001981600: 0000 [#1] SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x000000000cc0b000-0x000000000cc0b007]
CPU: 0 UID: 0 PID: 4025 Comm: syz-executor.6 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:destroy_workqueue+0x5a2/0xa00
Code: 3f 0f 87 24 01 00 00 e8 0c 58 31 00 89 de 48 89 ef e8 52 6b fe ff 49 89 c7 48 85 c0 74 41 e8 f5 57 31 00 4c 89 fa 48 c1 ea 03 <42> 80 3c 22 00 0f 85 89 03 00 00 49 8b 3f e8 bb 50 7b 03 4c 89 ff
I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
RSP: 0018:ffff888016f07d40 EFLAGS: 00010216
RAX: 0000000000014dee RBX: 0000000000000001 RCX: ffffc90007e38000
Buffer I/O error on dev sr0, logical block 1, async page read
RDX: 0000000001981600 RSI: ffffffff81428f8b RDI: 0000000000000005
RBP: ffff88801735b800 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
R13: ffffffff85852560 R14: ffffed1002e6b739 R15: 000000000cc0b000
I/O error, dev sr0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
FS: 00007f9548a0f700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
Buffer I/O error on dev sr0, logical block 2, async page read
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2cb21000 CR3: 0000000046af8000 CR4: 0000000000350ef0
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
Call Trace:
I/O error, dev sr0, sector 3 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
lo_free_disk+0x6b/0xb0
Buffer I/O error on dev sr0, logical block 3, async page read
disk_release+0x25d/0x420
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
device_release+0xa6/0x240
Buffer I/O error on dev sr0, logical block 4, async page read
kobject_put+0x162/0x260
put_device+0x1f/0x30
put_disk+0x48/0x60
loop_control_ioctl+0x4d9/0x640
__x64_sys_ioctl+0x18f/0x210
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
RIP: 0033:0x7f954b499b19
I/O error, dev sr0, sector 5 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
Buffer I/O error on dev sr0, logical block 5, async page read
RSP: 002b:00007f9548a0f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f954b5acf60 RCX: 00007f954b499b19
RDX: 0000000000000002 RSI: 0000000000004c81 RDI: 0000000000000004
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
RBP: 00007f954b4f3f6d R08: 0000000000000000 R09: 0000000000000000
I/O error, dev sr0, sector 6 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe2556df3f R14: 00007f9548a0f300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
Buffer I/O error on dev sr0, logical block 6, async page read
RIP: 0010:destroy_workqueue+0x5a2/0xa00
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
Code: 3f 0f 87 24 01 00 00 e8 0c 58 31 00 89 de 48 89 ef e8 52 6b fe ff 49 89 c7 48 85 c0 74 41 e8 f5 57 31 00 4c 89 fa 48 c1 ea 03 <42> 80 3c 22 00 0f 85 89 03 00 00 49 8b 3f e8 bb 50 7b 03 4c 89 ff
I/O error, dev sr0, sector 7 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
RSP: 0018:ffff888016f07d40 EFLAGS: 00010216
Buffer I/O error on dev sr0, logical block 7, async page read
RAX: 0000000000014dee RBX: 0000000000000001 RCX: ffffc90007e38000
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
RDX: 0000000001981600 RSI: ffffffff81428f8b RDI: 0000000000000005
RBP: ffff88801735b800 R08: 0000000000000001 R09: 0000000000000000
I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
Buffer I/O error on dev sr0, logical block 0, async page read
R13: ffffffff85852560 R14: ffffed1002e6b739 R15: 000000000cc0b000
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
FS: 00007f9548a0f700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
Buffer I/O error on dev sr0, logical block 1, async page read
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
CR2: 0000001b2cb21000 CR3: 0000000046af8000 CR4: 0000000000350ef0
BUG: sleeping function called from invalid context at ./include/linux/percpu-rwsem.h:51
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 4025, name: syz-executor.6
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
preempt_count: 0, expected: 0
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
RCU nest depth: 1, expected: 0
INFO: lockdep is turned off.
CPU: 0 UID: 0 PID: 4025 Comm: syz-executor.6 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
Call Trace:
dump_stack_lvl+0xfa/0x120
__might_resched+0x2f3/0x510
exit_signals+0x25/0x940
do_exit+0x2db/0x2970
make_task_dead+0x174/0x3b0
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7f954b499b19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f9548a0f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f954b5acf60 RCX: 00007f954b499b19
RDX: 0000000000000002 RSI: 0000000000004c81 RDI: 0000000000000004
RBP: 00007f954b4f3f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe2556df3f R14: 00007f9548a0f300 R15: 0000000000022000
EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
kmemleak: Automatic memory scanning thread ended
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000.
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 0f 87 24 01 00 00 ja 0x12a
6: e8 0c 58 31 00 callq 0x315817
b: 89 de mov %ebx,%esi
d: 48 89 ef mov %rbp,%rdi
10: e8 52 6b fe ff callq 0xfffe6b67
15: 49 89 c7 mov %rax,%r15
18: 48 85 c0 test %rax,%rax
1b: 74 41 je 0x5e
1d: e8 f5 57 31 00 callq 0x315817
22: 4c 89 fa mov %r15,%rdx
25: 48 c1 ea 03 shr $0x3,%rdx
* 29: 42 80 3c 22 00 cmpb $0x0,(%rdx,%r12,1) <-- trapping instruction
2e: 0f 85 89 03 00 00 jne 0x3bd
34: 49 8b 3f mov (%r15),%rdi
37: e8 bb 50 7b 03 callq 0x37b50f7
3c: 4c 89 ff mov %r15,%rdi