[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.44' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 55.920175][ T6508] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 55.932206][ T6508] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 55.940592][ T6508] CPU: 1 PID: 6508 Comm: syz-executor963 Not tainted 5.15.0-rc5-syzkaller #0 [ 55.949339][ T6508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.959375][ T6508] RIP: 0010:scsi_queue_rq+0x268a/0x3470 [ 55.965055][ T6508] Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 4d 0d 00 00 4c 8b b3 58 02 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <0f> b6 04 02 4c 89 f2 83 e2 07 38 d0 7f 08 84 c0 0f 85 25 0c 00 00 [ 55.984829][ T6508] RSP: 0018:ffffc9000528f530 EFLAGS: 00010256 [ 55.991143][ T6508] RAX: dffffc0000000000 RBX: ffff88801e03d400 RCX: 0000000000000000 [ 55.999116][ T6508] RDX: 0000000000000000 RSI: ffffffff8486b687 RDI: 0000000000000003 [ 56.007087][ T6508] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 56.015144][ T6508] R10: ffffffff8486b672 R11: 0000000000000000 R12: ffff88801e03d658 [ 56.023097][ T6508] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88801ac9c000 [ 56.031052][ T6508] FS: 00007ff410e6c700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 56.040050][ T6508] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.046634][ T6508] CR2: 00007f1e00d39740 CR3: 000000004213b000 CR4: 0000000000350ee0 [ 56.054604][ T6508] Call Trace: [ 56.057884][ T6508] blk_mq_dispatch_rq_list+0x422/0x1f00 [ 56.063510][ T6508] ? __blk_mq_sched_dispatch_requests+0x1db/0x410 [ 56.070344][ T6508] ? __blk_mq_try_issue_directly+0x7a0/0x7a0 [ 56.076393][ T6508] ? do_raw_spin_lock+0x120/0x2b0 [ 56.081401][ T6508] ? rwlock_bug.part.0+0x90/0x90 [ 56.086324][ T6508] __blk_mq_sched_dispatch_requests+0x20b/0x410 [ 56.092723][ T6508] ? blk_mq_do_dispatch_ctx+0x6c0/0x6c0 [ 56.098258][ T6508] blk_mq_sched_dispatch_requests+0xfb/0x180 [ 56.104225][ T6508] __blk_mq_run_hw_queue+0xd8/0x150 [ 56.109491][ T6508] ? hctx_unlock+0x170/0x170 [ 56.114064][ T6508] __blk_mq_delay_run_hw_queue+0x547/0x640 [ 56.119909][ T6508] blk_mq_run_hw_queue+0x16c/0x2f0 [ 56.125003][ T6508] ? blk_mq_delay_run_hw_queues+0x4a0/0x4a0 [ 56.130876][ T6508] ? do_raw_spin_unlock+0x171/0x230 [ 56.136584][ T6508] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 56.142811][ T6508] ? blk_mq_request_bypass_insert+0x14e/0x2f0 [ 56.148861][ T6508] blk_mq_sched_insert_request+0x368/0x450 [ 56.154756][ T6508] ? __blk_mq_sched_bio_merge+0x450/0x450 [ 56.160468][ T6508] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 56.166692][ T6508] ? blk_account_io_start+0x194/0x250 [ 56.172046][ T6508] blk_execute_rq+0xdc/0x410 [ 56.176619][ T6508] ? __might_fault+0xd3/0x180 [ 56.181282][ T6508] ? blk_end_sync_rq+0x50/0x50 [ 56.186031][ T6508] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 56.192255][ T6508] ? security_capable+0x8f/0xc0 [ 56.197089][ T6508] sg_io+0x678/0x10e0 [ 56.201143][ T6508] ? get_sg_io_hdr+0x8d0/0x8d0 [ 56.205978][ T6508] ? tomoyo_path_number_perm+0x204/0x590 [ 56.211590][ T6508] ? put_sg_io_hdr+0x6f0/0x6f0 [ 56.216340][ T6508] ? tomoyo_path_number_perm+0x441/0x590 [ 56.221961][ T6508] scsi_ioctl+0xa77/0x15d0 [ 56.226363][ T6508] ? scsi_cdrom_send_packet+0x640/0x640 [ 56.231892][ T6508] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 56.238116][ T6508] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 56.244339][ T6508] ? scsi_block_when_processing_errors+0x296/0x350 [ 56.250824][ T6508] ? blk_ioctl_discard+0x2e0/0x2e0 [ 56.256096][ T6508] sd_ioctl+0x1a6/0x2b0 [ 56.260236][ T6508] ? sd_uninit_command+0x180/0x180 [ 56.265327][ T6508] blkdev_ioctl+0x2a1/0x700 [ 56.269811][ T6508] ? blkdev_common_ioctl+0x18f0/0x18f0 [ 56.275253][ T6508] ? __fget_files+0x23d/0x3e0 [ 56.279912][ T6508] block_ioctl+0xfa/0x140 [ 56.284226][ T6508] ? blkdev_open+0x2b0/0x2b0 [ 56.288796][ T6508] __x64_sys_ioctl+0x193/0x200 [ 56.293545][ T6508] do_syscall_64+0x35/0xb0 [ 56.297964][ T6508] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 56.303843][ T6508] RIP: 0033:0x7ff410eba599 [ 56.308237][ T6508] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 14 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 56.327823][ T6508] RSP: 002b:00007ff410e6c2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 56.336214][ T6508] RAX: ffffffffffffffda RBX: 00007ff410f444c0 RCX: 00007ff410eba599 [ 56.344165][ T6508] RDX: 0000000020002300 RSI: 0000000000002285 RDI: 0000000000000004 [ 56.352205][ T6508] RBP: 00007ff410f12034 R08: 0000000000000000 R09: 0000000000000000 [ 56.360158][ T6508] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 56.368111][ T6508] R13: 00007ff410f12054 R14: 2f30656c69662f2e R15: 00007ff410f444c8 [ 56.376153][ T6508] Modules linked in: [ 56.380139][ T6508] ---[ end trace 6a5b9ccf7d777fc6 ]--- [ 56.380150][ T6508] RIP: 0010:scsi_queue_rq+0x268a/0x3470 [ 56.380171][ T6508] Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 4d 0d 00 00 4c 8b b3 58 02 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <0f> b6 04 02 4c 89 f2 83 e2 07 38 d0 7f 08 84 c0 0f 85 25 0c 00 00 [ 56.380185][ T6508] RSP: 0018:ffffc9000528f530 EFLAGS: 00010256 [ 56.380198][ T6508] RAX: dffffc0000000000 RBX: ffff88801e03d400 RCX: 0000000000000000 [ 56.380210][ T6508] RDX: 0000000000000000 RSI: ffffffff8486b687 RDI: 0000000000000003 [ 56.433319][ T6508] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 56.441742][ T6508] R10: ffffffff8486b672 R11: 0000000000000000 R12: ffff88801e03d658 [ 56.449735][ T6508] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88801ac9c000 [ 56.457719][ T6508] FS: 00007ff410e6c700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 56.466660][ T6508] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.473258][ T6508] CR2: 00007f1e00d39740 CR3: 000000004213b000 CR4: 0000000000350ee0 [ 56.481247][ T6508] Kernel panic - not syncing: Fatal exception [ 56.488338][ T6508] Kernel Offset: disabled [ 56.492644][ T6508] Rebooting in 86400 seconds..