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: 12438 Comm: syz-executor.0 Not tainted 5.15.0-rc3-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:1178 [inline] RIP: 0010:scsi_prepare_cmd drivers/scsi/scsi_lib.c:1564 [inline] RIP: 0010:scsi_queue_rq+0x174b/0x2ec0 drivers/scsi/scsi_lib.c:1670 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 8f c3 ed fc 4c 8b 2b 4c 89 e8 48 c1 e8 03 <42> 8a 04 38 84 c0 0f 85 4a 15 00 00 41 0f b6 5d 00 bf 7f 00 00 00 RSP: 0018:ffffc9000d247160 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88801e904e58 RCX: 0000000000000000 RDX: ffff888027191c80 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 1ffff11003d209c9 R08: ffffffff84e00bfd R09: ffff88801e904e60 R10: ffffed1003d209cf R11: 0000000000000000 R12: ffff88801e904c00 R13: 0000000000000000 R14: ffff88801e904e4c R15: dffffc0000000000 FS: 00007f202a68d700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fce95d0c058 CR3: 0000000036578000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: blk_mq_dispatch_rq_list+0xc1d/0x2910 block/blk-mq.c:1360 __blk_mq_sched_dispatch_requests+0x375/0x480 block/blk-mq-sched.c:327 blk_mq_sched_dispatch_requests+0xec/0x160 block/blk-mq-sched.c:360 __blk_mq_run_hw_queue+0x119/0x1b0 block/blk-mq.c:1480 __blk_mq_delay_run_hw_queue+0x22e/0x5b0 block/blk-mq.c:1557 blk_mq_run_hw_queue+0x1cf/0x3b0 block/blk-mq.c:1610 blk_mq_sched_insert_request+0x1e2/0x430 block/blk-mq-sched.c:479 blk_execute_rq_nowait block/blk-exec.c:62 [inline] blk_execute_rq+0x224/0x5d0 block/blk-exec.c:96 sg_io+0x8e9/0x1080 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+0x33b/0x6c0 block/ioctl.c:589 block_ioctl+0xaf/0xf0 block/fops.c:478 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: 0033:0x7f202d1588d9 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:00007f202a68d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f202d25d0e0 RCX: 00007f202d1588d9 RDX: 0000000020002300 RSI: 0000000000002285 RDI: 0000000000000004 RBP: 00007f202d1b2cb4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc702d2cef R14: 00007f202a68d300 R15: 0000000000022000 Modules linked in: ---[ end trace 1e3bc6f2b536d454 ]--- RIP: 0010:scsi_command_size include/scsi/scsi_common.h:24 [inline] RIP: 0010:scsi_setup_scsi_cmnd drivers/scsi/scsi_lib.c:1178 [inline] RIP: 0010:scsi_prepare_cmd drivers/scsi/scsi_lib.c:1564 [inline] RIP: 0010:scsi_queue_rq+0x174b/0x2ec0 drivers/scsi/scsi_lib.c:1670 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 8f c3 ed fc 4c 8b 2b 4c 89 e8 48 c1 e8 03 <42> 8a 04 38 84 c0 0f 85 4a 15 00 00 41 0f b6 5d 00 bf 7f 00 00 00 RSP: 0018:ffffc9000d247160 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88801e904e58 RCX: 0000000000000000 RDX: ffff888027191c80 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 1ffff11003d209c9 R08: ffffffff84e00bfd R09: ffff88801e904e60 R10: ffffed1003d209cf R11: 0000000000000000 R12: ffff88801e904c00 R13: 0000000000000000 R14: ffff88801e904e4c R15: dffffc0000000000 FS: 00007f202a68d700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fce95d0c058 CR3: 0000000036578000 CR4: 00000000003506e0 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 8f c3 ed fc callq 0xfcedc3af 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 4a 15 00 00 jne 0x1580 36: 41 0f b6 5d 00 movzbl 0x0(%r13),%ebx 3b: bf 7f 00 00 00 mov $0x7f,%edi