general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 15353 Comm: syz-executor.1 Not tainted 5.9.0-rc8-next-20201008-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:1186 [inline] RIP: 0010:scsi_prepare_cmd drivers/scsi/scsi_lib.c:1565 [inline] RIP: 0010:scsi_queue_rq+0x2155/0x3020 drivers/scsi/scsi_lib.c:1654 Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 98 0c 00 00 48 8b 83 58 02 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 c1 48 c1 e9 03 <0f> b6 14 11 48 89 c1 83 e1 07 38 ca 7f 08 84 d2 0f 85 53 0c 00 00 RSP: 0018:ffffc90004a47580 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88801b430000 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: ffffffff84aaad82 RDI: 0000000000000003 RBP: ffff888019480000 R08: 0000000000000001 R09: ffff88801b4303c0 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88801b430258 R14: ffff88813416c000 R15: 0000000000000000 FS: 00007f4eb5dfb700(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32f27000 CR3: 0000000062d73000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: blk_mq_dispatch_rq_list+0x3a1/0x1eb0 block/blk-mq.c:1388 __blk_mq_sched_dispatch_requests+0x263/0x490 block/blk-mq-sched.c:308 blk_mq_sched_dispatch_requests+0xfb/0x180 block/blk-mq-sched.c:341 __blk_mq_run_hw_queue+0x13a/0x2d0 block/blk-mq.c:1532 __blk_mq_delay_run_hw_queue+0x522/0x5f0 block/blk-mq.c:1609 blk_mq_run_hw_queue+0x16c/0x2f0 block/blk-mq.c:1662 blk_mq_sched_insert_request+0x4d7/0x5e0 block/blk-mq-sched.c:473 blk_execute_rq+0xd4/0x1b0 block/blk-exec.c:86 sg_io+0x609/0xf50 block/scsi_ioctl.c:360 scsi_cmd_ioctl+0x5ce/0x660 block/scsi_ioctl.c:808 scsi_cmd_blk_ioctl block/scsi_ioctl.c:866 [inline] scsi_cmd_blk_ioctl+0xe1/0x130 block/scsi_ioctl.c:857 sd_ioctl_common+0x17e/0x280 drivers/scsi/sd.c:1575 sd_ioctl+0x26/0xf0 drivers/scsi/sd.c:1765 __blkdev_driver_ioctl block/ioctl.c:228 [inline] blkdev_ioctl+0x2a7/0x7f0 block/ioctl.c:623 block_ioctl+0xf9/0x140 fs/block_dev.c:1869 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45de29 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f4eb5dfac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000014f40 RCX: 000000000045de29 RDX: 00000000200046c0 RSI: 0000000000002285 RDI: 0000000000000004 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffc4854b71f R14: 00007f4eb5dfb9c0 R15: 000000000118bf2c Modules linked in: ---[ end trace b53f0c69f6d7af7e ]--- RIP: 0010:scsi_command_size include/scsi/scsi_common.h:24 [inline] RIP: 0010:scsi_setup_scsi_cmnd drivers/scsi/scsi_lib.c:1186 [inline] RIP: 0010:scsi_prepare_cmd drivers/scsi/scsi_lib.c:1565 [inline] RIP: 0010:scsi_queue_rq+0x2155/0x3020 drivers/scsi/scsi_lib.c:1654 Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 98 0c 00 00 48 8b 83 58 02 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 c1 48 c1 e9 03 <0f> b6 14 11 48 89 c1 83 e1 07 38 ca 7f 08 84 d2 0f 85 53 0c 00 00 RSP: 0018:ffffc90004a47580 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88801b430000 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: ffffffff84aaad82 RDI: 0000000000000003 RBP: ffff888019480000 R08: 0000000000000001 R09: ffff88801b4303c0 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88801b430258 R14: ffff88813416c000 R15: 0000000000000000 FS: 00007f4eb5dfb700(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32f27000 CR3: 0000000062d73000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400