divide error: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 PID: 6002 Comm: usb-storage Not tainted 6.8.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:isd200_scsi_to_ata drivers/usb/storage/isd200.c:1318 [inline] RIP: 0010:isd200_ata_command+0x776/0x2380 drivers/usb/storage/isd200.c:1529 Code: 61 fa 49 8d 7c 24 0c 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 00 18 00 00 41 0f b7 5c 24 0c 48 8b 7c 24 18 89 f8 31 d2 f3 41 89 d0 49 83 c4 06 4c 89 e0 48 c1 e8 03 42 0f b6 04 28 84 RSP: 0018:ffffc9001389fc00 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88807f4d3b80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9001389fd50 R08: ffffffff8731802d R09: ffffffff87317ac5 R10: 0000000000000008 R11: ffff88807f4d3b80 R12: ffff888065ca1400 R13: dffffc0000000000 R14: ffff88807fa90800 R15: ffff88802eca5110 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555658a938 CR3: 000000002da68000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: usb_stor_control_thread+0x4b1/0xa50 drivers/usb/storage/usb.c:368 kthread+0x2ef/0x390 kernel/kthread.c:388 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:isd200_scsi_to_ata drivers/usb/storage/isd200.c:1318 [inline] RIP: 0010:isd200_ata_command+0x776/0x2380 drivers/usb/storage/isd200.c:1529 Code: 61 fa 49 8d 7c 24 0c 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 00 18 00 00 41 0f b7 5c 24 0c 48 8b 7c 24 18 89 f8 31 d2 f3 41 89 d0 49 83 c4 06 4c 89 e0 48 c1 e8 03 42 0f b6 04 28 84 RSP: 0018:ffffc9001389fc00 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88807f4d3b80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9001389fd50 R08: ffffffff8731802d R09: ffffffff87317ac5 R10: 0000000000000008 R11: ffff88807f4d3b80 R12: ffff888065ca1400 R13: dffffc0000000000 R14: ffff88807fa90800 R15: ffff88802eca5110 FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe70bfad988 CR3: 000000002d96e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: fa cli 1: 49 8d 7c 24 0c lea 0xc(%r12),%rdi 6: 48 89 f8 mov %rdi,%rax 9: 48 c1 e8 03 shr $0x3,%rax d: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax 12: 84 c0 test %al,%al 14: 0f 85 00 18 00 00 jne 0x181a 1a: 41 0f b7 5c 24 0c movzwl 0xc(%r12),%ebx 20: 48 8b 7c 24 18 mov 0x18(%rsp),%rdi 25: 89 f8 mov %edi,%eax 27: 31 d2 xor %edx,%edx * 29: f7 f3 div %ebx <-- trapping instruction 2b: 41 89 d0 mov %edx,%r8d 2e: 49 83 c4 06 add $0x6,%r12 32: 4c 89 e0 mov %r12,%rax 35: 48 c1 e8 03 shr $0x3,%rax 39: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax 3e: 84 .byte 0x84