general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 PID: 21702 Comm: syz-executor.4 Not tainted 5.15.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:scsi_command_size include/scsi/scsi_common.h:24 [inline] RIP: 0010:scsi_setup_scsi_cmnd drivers/scsi/scsi_lib.c:1188 [inline] RIP: 0010:scsi_prepare_cmd drivers/scsi/scsi_lib.c:1574 [inline] RIP: 0010:scsi_queue_rq+0x1745/0x2ec0 drivers/scsi/scsi_lib.c:1680 Code: eb 7c 49 8d 9c 24 58 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 45 b6 ec fc 4c 8b 2b 4c 89 e8 48 c1 e8 03 <42> 8a 04 38 84 c0 0f 85 47 15 00 00 41 0f b6 5d 00 bf 7f 00 00 00 RSP: 0018:ffffc900167ef1c0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88801d9c4658 RCX: 0000000000000000 RDX: ffff888018d38000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 1ffff11003b388c9 R08: ffffffff84e26757 R09: ffff88801d9c4660 R10: ffffed1003b388cf R11: 0000000000000000 R12: ffff88801d9c4400 R13: 0000000000000000 R14: ffff88801d9c464c R15: dffffc0000000000 FS: 00007ff00c9df700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 0000000081929000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: blk_mq_dispatch_rq_list+0xfbc/0x2ab0 block/blk-mq.c:1639 __blk_mq_sched_dispatch_requests+0x375/0x480 block/blk-mq-sched.c:325 blk_mq_sched_dispatch_requests+0xec/0x160 block/blk-mq-sched.c:358 __blk_mq_run_hw_queue+0x117/0x1b0 block/blk-mq.c:1761 __blk_mq_delay_run_hw_queue+0x22e/0x5b0 block/blk-mq.c:1838 blk_mq_run_hw_queue+0x1cf/0x3b0 block/blk-mq.c:1891 blk_mq_sched_insert_request+0x1e2/0x430 block/blk-mq-sched.c:474 blk_execute_rq_nowait block/blk-exec.c:62 [inline] blk_execute_rq+0x234/0x480 block/blk-exec.c:102 sg_io+0x8e6/0x1080 drivers/scsi/scsi_ioctl.c:484 scsi_ioctl_sg_io drivers/scsi/scsi_ioctl.c:872 [inline] scsi_ioctl+0xff0/0x2ef0 drivers/scsi/scsi_ioctl.c:928 blkdev_ioctl+0x3ac/0x790 block/ioctl.c:597 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7ff00f469ae9 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:00007ff00c9df188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ff00f57cf60 RCX: 00007ff00f469ae9 RDX: 0000000020002300 RSI: 0000000000002285 RDI: 0000000000000004 RBP: 00007ff00f4c3f25 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffeb7cdb63f R14: 00007ff00c9df300 R15: 0000000000022000 Modules linked in: ---[ end trace 9b22e536aebaa149 ]--- RIP: 0010:scsi_command_size include/scsi/scsi_common.h:24 [inline] RIP: 0010:scsi_setup_scsi_cmnd drivers/scsi/scsi_lib.c:1188 [inline] RIP: 0010:scsi_prepare_cmd drivers/scsi/scsi_lib.c:1574 [inline] RIP: 0010:scsi_queue_rq+0x1745/0x2ec0 drivers/scsi/scsi_lib.c:1680 Code: eb 7c 49 8d 9c 24 58 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 45 b6 ec fc 4c 8b 2b 4c 89 e8 48 c1 e8 03 <42> 8a 04 38 84 c0 0f 85 47 15 00 00 41 0f b6 5d 00 bf 7f 00 00 00 RSP: 0018:ffffc900167ef1c0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88801d9c4658 RCX: 0000000000000000 RDX: ffff888018d38000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 1ffff11003b388c9 R08: ffffffff84e26757 R09: ffff88801d9c4660 R10: ffffed1003b388cf R11: 0000000000000000 R12: ffff88801d9c4400 R13: 0000000000000000 R14: ffff88801d9c464c R15: dffffc0000000000 FS: 00007ff00c9df700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 0000000081929000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: eb 7c jmp 0x7e 2: 49 8d 9c 24 58 02 00 lea 0x258(%r12),%rbx 9: 00 a: 48 89 d8 mov %rbx,%rax d: 48 c1 e8 03 shr $0x3,%rax 11: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) 16: 74 08 je 0x20 18: 48 89 df mov %rbx,%rdi 1b: e8 45 b6 ec fc callq 0xfcecb665 20: 4c 8b 2b mov (%rbx),%r13 23: 4c 89 e8 mov %r13,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 8a 04 38 mov (%rax,%r15,1),%al <-- trapping instruction 2e: 84 c0 test %al,%al 30: 0f 85 47 15 00 00 jne 0x157d 36: 41 0f b6 5d 00 movzbl 0x0(%r13),%ebx 3b: bf 7f 00 00 00 mov $0x7f,%edi