[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.189' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 67.181895][ T6522] loop0: detected capacity change from 0 to 1 [ 67.189862][ T6522] BUG: unable to handle page fault for address: ffffed1018b5b550 [ 67.197598][ T6522] #PF: supervisor read access in kernel mode [ 67.203562][ T6522] #PF: error_code(0x0000) - not-present page [ 67.209527][ T6522] PGD 23ffee067 P4D 23ffee067 PUD 13fff5067 PMD 0 [ 67.216034][ T6522] Oops: 0000 [#1] PREEMPT SMP KASAN [ 67.221222][ T6522] CPU: 0 PID: 6522 Comm: syz-executor351 Not tainted 5.15.0-rc7-next-20211028-syzkaller #0 [ 67.231213][ T6522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.241269][ T6522] RIP: 0010:__blk_mq_alloc_requests+0x4a7/0xb00 [ 67.247526][ T6522] Code: e8 fd 48 8b 44 24 10 80 38 00 0f 85 a6 04 00 00 48 8b 44 24 08 45 89 ed 48 8b b0 88 00 00 00 4a 8d 1c ee 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 6c 04 00 00 44 8b ac 24 a0 00 00 00 48 8b 03 [ 67.267127][ T6522] RSP: 0018:ffffc9000209ea90 EFLAGS: 00010a06 [ 67.273180][ T6522] RAX: 1ffff11018b5b550 RBX: ffff8880c5adaa80 RCX: 0000000000000000 [ 67.281143][ T6522] RDX: ffff888078153a80 RSI: ffff88801a13a000 RDI: 0000000000000003 [ 67.289102][ T6522] RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000 [ 67.297063][ T6522] R10: ffffffff838f31a1 R11: 0000000000000000 R12: 0000000000000000 [ 67.305630][ T6522] R13: 0000000015734150 R14: dffffc0000000000 R15: ffffc9000209ec28 [ 67.313591][ T6522] FS: 000055555618f3c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 67.322514][ T6522] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.329097][ T6522] CR2: ffffed1018b5b550 CR3: 000000006f449000 CR4: 00000000003506f0 [ 67.337063][ T6522] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.345025][ T6522] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.352987][ T6522] Call Trace: [ 67.356272][ T6522] [ 67.359219][ T6522] ? blk_mq_hctx_mark_pending+0x2a0/0x2a0 [ 67.364942][ T6522] ? iolatency_pd_alloc+0x1b0/0x1b0 [ 67.370137][ T6522] blk_mq_submit_bio+0xdac/0x1b40 [ 67.375158][ T6522] ? blk_mq_try_issue_list_directly+0x4d0/0x4d0 [ 67.381390][ T6522] ? submit_bio_checks+0x26a/0x1d90 [ 67.386587][ T6522] __submit_bio+0x794/0x8e0 [ 67.391095][ T6522] ? find_held_lock+0x2d/0x110 [ 67.395851][ T6522] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 67.402091][ T6522] ? submit_bio_checks+0x1d90/0x1d90 [ 67.407484][ T6522] ? bio_add_page+0x186/0x1f0 [ 67.412159][ T6522] ? __bio_try_merge_page+0x360/0x360 [ 67.417525][ T6522] submit_bio_noacct+0x6c9/0x8a0 [ 67.422456][ T6522] ? __submit_bio+0x8e0/0x8e0 [ 67.427130][ T6522] submit_bio+0x1ea/0x430 [ 67.431452][ T6522] ? submit_bio_noacct+0x8a0/0x8a0 [ 67.436561][ T6522] mpage_readahead+0x589/0x750 [ 67.441338][ T6522] ? do_mpage_readpage+0x1f80/0x1f80 [ 67.446625][ T6522] ? __blkdev_direct_IO_simple+0x860/0x860 [ 67.452424][ T6522] ? folio_add_lru+0x353/0x6a0 [ 67.457195][ T6522] ? lock_downgrade+0x6e0/0x6e0 [ 67.462045][ T6522] ? blkdev_write_begin+0x40/0x40 [ 67.467065][ T6522] read_pages+0x1e4/0xfa0 [ 67.471390][ T6522] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 67.477627][ T6522] ? folio_add_lru+0x389/0x6a0 [ 67.482383][ T6522] ? readahead_expand+0x8b0/0x8b0 [ 67.487401][ T6522] ? filemap_add_folio+0x138/0x1d0 [ 67.492506][ T6522] ? add_to_page_cache_locked+0x90/0x90 [ 67.498044][ T6522] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 67.504279][ T6522] ? folio_alloc+0x3f/0x70 [ 67.508687][ T6522] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 67.514923][ T6522] page_cache_ra_unbounded+0x64b/0x940 [ 67.520381][ T6522] ? read_pages+0xfa0/0xfa0 [ 67.524876][ T6522] ? lock_downgrade+0x6e0/0x6e0 [ 67.529730][ T6522] ondemand_readahead+0x594/0x1090 [ 67.534847][ T6522] page_cache_sync_ra+0x1cb/0x200 [ 67.539884][ T6522] filemap_get_pages+0x2b2/0x1be0 [ 67.544925][ T6522] ? filemap_get_read_batch+0xad0/0xad0 [ 67.550479][ T6522] filemap_read+0x315/0xeb0 [ 67.554986][ T6522] ? aa_file_perm+0x595/0x1180 [ 67.559752][ T6522] ? filemap_get_pages+0x1be0/0x1be0 [ 67.565043][ T6522] ? fsnotify+0x12b0/0x12b0 [ 67.569538][ T6522] ? import_single_range+0x288/0x320 [ 67.574833][ T6522] ? __io_import_iovec+0x36f/0x1330 [ 67.580035][ T6522] generic_file_read_iter+0x3b6/0x5a0 [ 67.585403][ T6522] blkdev_read_iter+0x117/0x200 [ 67.590256][ T6522] ? blkdev_write_iter+0x6a0/0x6a0 [ 67.595361][ T6522] io_read+0x33c/0xff0 [ 67.599431][ T6522] ? stack_trace_save+0x8c/0xc0 [ 67.604372][ T6522] ? kiocb_done+0xb90/0xb90 [ 67.608876][ T6522] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 67.614858][ T6522] ? lock_chain_count+0x20/0x20 [ 67.619706][ T6522] io_issue_sqe+0x800/0x7010 [ 67.624291][ T6522] ? find_held_lock+0x2d/0x110 [ 67.629050][ T6522] ? __fget_files+0x21b/0x3e0 [ 67.633728][ T6522] ? lock_downgrade+0x6e0/0x6e0 [ 67.638576][ T6522] ? io_openat2+0xb50/0xb50 [ 67.643078][ T6522] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 67.649320][ T6522] io_submit_sqes+0x1bca/0x8a20 [ 67.654174][ T6522] ? find_held_lock+0x2d/0x110 [ 67.658945][ T6522] ? io_async_task_func+0x550/0x550 [ 67.664148][ T6522] ? __do_sys_io_uring_enter+0xf6e/0x1f50 [ 67.669867][ T6522] __do_sys_io_uring_enter+0xf6e/0x1f50 [ 67.675420][ T6522] ? io_submit_sqes+0x8a20/0x8a20 [ 67.680441][ T6522] ? find_held_lock+0x2d/0x110 [ 67.685201][ T6522] ? __context_tracking_exit+0xb8/0xe0 [ 67.690716][ T6522] ? lock_downgrade+0x6e0/0x6e0 [ 67.695561][ T6522] ? lock_downgrade+0x6e0/0x6e0 [ 67.700431][ T6522] ? syscall_enter_from_user_mode+0x21/0x70 [ 67.706324][ T6522] do_syscall_64+0x35/0xb0 [ 67.710743][ T6522] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 67.716635][ T6522] RIP: 0033:0x7f4f6507e9c9 [ 67.721040][ T6522] 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 c4 ff ff ff f7 d8 64 89 01 48 [ 67.740646][ T6522] RSP: 002b:00007ffcd48f4858 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa [ 67.749052][ T6522] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4f6507e9c9 [ 67.757029][ T6522] RDX: 0000000000000000 RSI: 00000000000002ff RDI: 0000000000000003 [ 67.764988][ T6522] RBP: 00007ffcd48f4870 R08: 0000000000000000 R09: 0000000000000000 [ 67.772949][ T6522] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 67.780912][ T6522] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 67.788892][ T6522] [ 67.792026][ T6522] Modules linked in: [ 67.795925][ T6522] CR2: ffffed1018b5b550 [ 67.800070][ T6522] ---[ end trace bdba28a8815d7c3a ]--- [ 67.805782][ T6522] RIP: 0010:__blk_mq_alloc_requests+0x4a7/0xb00 [ 67.812062][ T6522] Code: e8 fd 48 8b 44 24 10 80 38 00 0f 85 a6 04 00 00 48 8b 44 24 08 45 89 ed 48 8b b0 88 00 00 00 4a 8d 1c ee 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 6c 04 00 00 44 8b ac 24 a0 00 00 00 48 8b 03 [ 67.832304][ T6522] RSP: 0018:ffffc9000209ea90 EFLAGS: 00010a06 [ 67.838375][ T6522] RAX: 1ffff11018b5b550 RBX: ffff8880c5adaa80 RCX: 0000000000000000 [ 67.846337][ T6522] RDX: ffff888078153a80 RSI: ffff88801a13a000 RDI: 0000000000000003 [ 67.854311][ T6522] RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000 [ 67.862268][ T6522] R10: ffffffff838f31a1 R11: 0000000000000000 R12: 0000000000000000 [ 67.870236][ T6522] R13: 0000000015734150 R14: dffffc0000000000 R15: ffffc9000209ec28 [ 67.878282][ T6522] FS: 000055555618f3c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 67.887201][ T6522] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.893776][ T6522] CR2: ffffed1018b5b550 CR3: 000000006f449000 CR4: 00000000003506f0 [ 67.901735][ T6522] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.909692][ T6522] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.917746][ T6522] Kernel panic - not syncing: Fatal exception [ 67.924124][ T6522] Kernel Offset: disabled [ 67.928454][ T6522] Rebooting in 86400 seconds..