[ 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 '10.128.0.222' (ECDSA) to the list of known hosts. syzkaller login: [ 71.049977][ T3267] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.056504][ T3267] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.106774][ T3106] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.134147][ T3106] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.161002][ T10] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.168015][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 71.189575][ T10] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 71.206756][ T8495] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 71.224145][ T8511] loop0: detected capacity change from 0 to 2403 [ 71.349706][ T8515] ------------[ cut here ]------------ [ 71.355193][ T8515] Trying to write to read-only block-device loop0 (partno 0) [ 71.365695][ T8515] WARNING: CPU: 1 PID: 8515 at block/blk-core.c:700 submit_bio_checks+0x160c/0x1a80 [ 71.376336][ T8515] Modules linked in: [ 71.381182][ T8515] CPU: 1 PID: 8515 Comm: syz-executor327 Not tainted 5.14.0-rc7-syzkaller #0 [ 71.390918][ T8515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.410838][ T8515] RIP: 0010:submit_bio_checks+0x160c/0x1a80 [ 71.416791][ T8515] Code: 00 00 45 0f b6 a4 24 90 05 00 00 48 8d 74 24 60 48 89 ef e8 c6 47 fe ff 48 c7 c7 00 a0 e1 89 48 89 c6 44 89 e2 e8 f2 fb 27 05 <0f> 0b e9 86 f3 ff ff e8 08 64 b5 fd e8 63 35 6a 05 31 ff 89 c3 89 [ 71.438235][ T8515] RSP: 0018:ffffc9000173f238 EFLAGS: 00010286 [ 71.444333][ T8515] RAX: 0000000000000000 RBX: ffff8881460d0000 RCX: 0000000000000000 [ 71.454865][ T8515] RDX: ffff88801ba30000 RSI: ffffffff815d85c5 RDI: fffff520002e7e39 [ 71.463040][ T8515] RBP: ffff88802c47ea00 R08: 0000000000000000 R09: 0000000000000000 [ 71.472167][ T8515] R10: ffffffff815d23fe R11: 0000000000000000 R12: 0000000000000000 [ 71.482741][ T8515] R13: ffff88802c47ea10 R14: ffff88801a3fa1c0 R15: ffff8881460d0574 [ 71.490801][ T8515] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 71.499851][ T8515] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.506448][ T8515] CR2: 000055a6fc8ff160 CR3: 0000000016293000 CR4: 00000000001506f0 [ 71.515567][ T8515] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.523744][ T8515] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.534720][ T8515] Call Trace: [ 71.538271][ T8515] ? __lock_acquire+0xbc2/0x54a0 [ 71.543226][ T8515] ? trace_event_raw_event_block_rq_requeue+0x510/0x510 [ 71.550267][ T8515] submit_bio_noacct+0x81/0xf20 [ 71.555129][ T8515] ? blk_queue_enter+0xb60/0xb60 [ 71.560232][ T8515] ? lock_downgrade+0x6e0/0x6e0 [ 71.565106][ T8515] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 71.571434][ T8515] ? __bio_add_page+0x377/0x540 [ 71.576530][ T8515] submit_bio+0x1ea/0x470 [ 71.581785][ T8515] ? submit_bio_noacct+0xf20/0xf20 [ 71.586960][ T8515] submit_bh_wbc+0x5eb/0x7f0 [ 71.591953][ T8515] __block_write_full_page+0x879/0x1360 [ 71.597871][ T8515] ? bdev_evict_inode+0x4a0/0x4a0 [ 71.602917][ T8515] block_write_full_page+0x14d/0x190 [ 71.608475][ T8515] ? bdev_evict_inode+0x4a0/0x4a0 [ 71.613528][ T8515] __writepage+0x60/0x180 [ 71.617924][ T8515] write_cache_pages+0x754/0x1190 [ 71.622959][ T8515] ? tag_pages_for_writeback+0x440/0x440 [ 71.628686][ T8515] ? clear_page_dirty_for_io+0xa40/0xa40 [ 71.634354][ T8515] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 71.640296][ T8515] ? mark_lock+0xef/0x17b0 [ 71.644744][ T8515] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 71.650629][ T8515] ? __lock_acquire+0x162f/0x54a0 [ 71.655667][ T8515] ? blkdev_readahead+0x20/0x20 [ 71.660624][ T8515] generic_writepages+0xe2/0x150 [ 71.665578][ T8515] ? write_cache_pages+0x1190/0x1190 [ 71.670916][ T8515] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 71.677039][ T8515] ? find_held_lock+0x2d/0x110 [ 71.682385][ T8515] do_writepages+0xec/0x290 [ 71.686923][ T8515] ? writeback_set_ratelimit+0x150/0x150 [ 71.692712][ T8515] ? do_raw_spin_lock+0x120/0x2b0 [ 71.698081][ T8515] ? do_raw_spin_unlock+0x171/0x230 [ 71.705848][ T8515] ? _raw_spin_unlock+0x24/0x40 [ 71.711938][ T8515] ? wbc_attach_and_unlock_inode+0x111/0x9d0 [ 71.718636][ T8515] __filemap_fdatawrite_range+0x2a5/0x390 [ 71.724366][ T8515] ? delete_from_page_cache_batch+0xe10/0xe10 [ 71.730622][ T8515] ? locks_remove_file+0x2f4/0x570 [ 71.735801][ T8515] ? do_raw_spin_unlock+0x171/0x230 [ 71.741256][ T8515] filemap_write_and_wait_range+0x65/0x100 [ 71.747124][ T8515] blkdev_put+0x7ff/0xae0 [ 71.751786][ T8515] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 71.758159][ T8515] blkdev_close+0x8c/0xb0 [ 71.762562][ T8515] __fput+0x288/0x920 [ 71.766584][ T8515] ? blkdev_put+0xae0/0xae0 [ 71.771158][ T8515] task_work_run+0xdd/0x1a0 [ 71.775674][ T8515] do_exit+0xbd4/0x2a60 [ 71.780129][ T8515] ? mm_update_next_owner+0x7a0/0x7a0 [ 71.785557][ T8515] ? lock_downgrade+0x6e0/0x6e0 [ 71.790490][ T8515] do_group_exit+0x125/0x310 [ 71.795101][ T8515] get_signal+0x47f/0x2160 [ 71.799646][ T8515] arch_do_signal_or_restart+0x2a9/0x1c40 [ 71.805468][ T8515] ? find_held_lock+0x2d/0x110 [ 71.810359][ T8515] ? get_sigframe_size+0x10/0x10 [ 71.815335][ T8515] ? __do_sys_futex+0xdc/0x3b0 [ 71.820220][ T8515] ? do_futex+0x1770/0x1770 [ 71.824760][ T8515] exit_to_user_mode_prepare+0x17d/0x290 [ 71.830515][ T8515] syscall_exit_to_user_mode+0x19/0x60 [ 71.835997][ T8515] do_syscall_64+0x42/0xb0 [ 71.840584][ T8515] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.846508][ T8515] RIP: 0033:0x452de9 [ 71.850486][ T8515] Code: Unable to access opcode bytes at RIP 0x452dbf. [ 71.857344][ T8515] RSP: 002b:00007ff0c7c02218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 71.865916][ T8515] RAX: fffffffffffffe00 RBX: 00000000004cc4d8 RCX: 0000000000452de9 [ 71.874004][ T8515] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000004cc4d8 [ 71.882418][ T8515] RBP: 00000000004cc4d0 R08: 0000000000000000 R09: 0000000000000000 [ 71.890538][ T8515] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cc4dc [ 71.898634][ T8515] R13: 00007ffe97a1a50f R14: 00007ff0c7c02300 R15: 0000000000022000 [ 71.906843][ T8515] Kernel panic - not syncing: panic_on_warn set ... [ 71.913563][ T8515] CPU: 0 PID: 8515 Comm: syz-executor327 Not tainted 5.14.0-rc7-syzkaller #0 [ 71.922317][ T8515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.932365][ T8515] Call Trace: [ 71.935650][ T8515] dump_stack_lvl+0xcd/0x134 [ 71.940260][ T8515] panic+0x306/0x73d [ 71.944173][ T8515] ? __warn_printk+0xf3/0xf3 [ 71.948781][ T8515] ? __warn.cold+0x1a/0x44 [ 71.953199][ T8515] ? submit_bio_checks+0x160c/0x1a80 [ 71.958514][ T8515] __warn.cold+0x35/0x44 [ 71.962754][ T8515] ? wake_up_klogd.part.0+0x8e/0xd0 [ 71.967954][ T8515] ? submit_bio_checks+0x160c/0x1a80 [ 71.973243][ T8515] report_bug+0x1bd/0x210 [ 71.977576][ T8515] handle_bug+0x3c/0x60 [ 71.981743][ T8515] exc_invalid_op+0x14/0x40 [ 71.986252][ T8515] asm_exc_invalid_op+0x12/0x20 [ 71.991191][ T8515] RIP: 0010:submit_bio_checks+0x160c/0x1a80 [ 71.997091][ T8515] Code: 00 00 45 0f b6 a4 24 90 05 00 00 48 8d 74 24 60 48 89 ef e8 c6 47 fe ff 48 c7 c7 00 a0 e1 89 48 89 c6 44 89 e2 e8 f2 fb 27 05 <0f> 0b e9 86 f3 ff ff e8 08 64 b5 fd e8 63 35 6a 05 31 ff 89 c3 89 [ 72.016698][ T8515] RSP: 0018:ffffc9000173f238 EFLAGS: 00010286 [ 72.022766][ T8515] RAX: 0000000000000000 RBX: ffff8881460d0000 RCX: 0000000000000000 [ 72.030734][ T8515] RDX: ffff88801ba30000 RSI: ffffffff815d85c5 RDI: fffff520002e7e39 [ 72.038715][ T8515] RBP: ffff88802c47ea00 R08: 0000000000000000 R09: 0000000000000000 [ 72.046699][ T8515] R10: ffffffff815d23fe R11: 0000000000000000 R12: 0000000000000000 [ 72.054759][ T8515] R13: ffff88802c47ea10 R14: ffff88801a3fa1c0 R15: ffff8881460d0574 [ 72.062732][ T8515] ? wake_up_klogd.part.0+0x8e/0xd0 [ 72.068047][ T8515] ? vprintk+0x95/0x260 [ 72.072224][ T8515] ? submit_bio_checks+0x160c/0x1a80 [ 72.077514][ T8515] ? __lock_acquire+0xbc2/0x54a0 [ 72.082541][ T8515] ? trace_event_raw_event_block_rq_requeue+0x510/0x510 [ 72.089589][ T8515] submit_bio_noacct+0x81/0xf20 [ 72.094444][ T8515] ? blk_queue_enter+0xb60/0xb60 [ 72.099384][ T8515] ? lock_downgrade+0x6e0/0x6e0 [ 72.104242][ T8515] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 72.110504][ T8515] ? __bio_add_page+0x377/0x540 [ 72.115389][ T8515] submit_bio+0x1ea/0x470 [ 72.119722][ T8515] ? submit_bio_noacct+0xf20/0xf20 [ 72.124846][ T8515] submit_bh_wbc+0x5eb/0x7f0 [ 72.129463][ T8515] __block_write_full_page+0x879/0x1360 [ 72.135019][ T8515] ? bdev_evict_inode+0x4a0/0x4a0 [ 72.140055][ T8515] block_write_full_page+0x14d/0x190 [ 72.145346][ T8515] ? bdev_evict_inode+0x4a0/0x4a0 [ 72.150390][ T8515] __writepage+0x60/0x180 [ 72.154723][ T8515] write_cache_pages+0x754/0x1190 [ 72.159751][ T8515] ? tag_pages_for_writeback+0x440/0x440 [ 72.165475][ T8515] ? clear_page_dirty_for_io+0xa40/0xa40 [ 72.171120][ T8515] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 72.176937][ T8515] ? mark_lock+0xef/0x17b0 [ 72.181373][ T8515] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 72.187184][ T8515] ? __lock_acquire+0x162f/0x54a0 [ 72.192217][ T8515] ? blkdev_readahead+0x20/0x20 [ 72.197073][ T8515] generic_writepages+0xe2/0x150 [ 72.202009][ T8515] ? write_cache_pages+0x1190/0x1190 [ 72.207296][ T8515] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 72.213282][ T8515] ? find_held_lock+0x2d/0x110 [ 72.218053][ T8515] do_writepages+0xec/0x290 [ 72.222559][ T8515] ? writeback_set_ratelimit+0x150/0x150 [ 72.228283][ T8515] ? do_raw_spin_lock+0x120/0x2b0 [ 72.233310][ T8515] ? do_raw_spin_unlock+0x171/0x230 [ 72.238513][ T8515] ? _raw_spin_unlock+0x24/0x40 [ 72.243366][ T8515] ? wbc_attach_and_unlock_inode+0x111/0x9d0 [ 72.249375][ T8515] __filemap_fdatawrite_range+0x2a5/0x390 [ 72.255103][ T8515] ? delete_from_page_cache_batch+0xe10/0xe10 [ 72.261176][ T8515] ? locks_remove_file+0x2f4/0x570 [ 72.266326][ T8515] ? do_raw_spin_unlock+0x171/0x230 [ 72.271530][ T8515] filemap_write_and_wait_range+0x65/0x100 [ 72.277346][ T8515] blkdev_put+0x7ff/0xae0 [ 72.281677][ T8515] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 72.287924][ T8515] blkdev_close+0x8c/0xb0 [ 72.292251][ T8515] __fput+0x288/0x920 [ 72.296322][ T8515] ? blkdev_put+0xae0/0xae0 [ 72.300830][ T8515] task_work_run+0xdd/0x1a0 [ 72.305338][ T8515] do_exit+0xbd4/0x2a60 [ 72.309516][ T8515] ? mm_update_next_owner+0x7a0/0x7a0 [ 72.314908][ T8515] ? lock_downgrade+0x6e0/0x6e0 [ 72.319768][ T8515] do_group_exit+0x125/0x310 [ 72.324362][ T8515] get_signal+0x47f/0x2160 [ 72.328796][ T8515] arch_do_signal_or_restart+0x2a9/0x1c40 [ 72.334522][ T8515] ? find_held_lock+0x2d/0x110 [ 72.339296][ T8515] ? get_sigframe_size+0x10/0x10 [ 72.344239][ T8515] ? __do_sys_futex+0xdc/0x3b0 [ 72.349024][ T8515] ? do_futex+0x1770/0x1770 [ 72.353539][ T8515] exit_to_user_mode_prepare+0x17d/0x290 [ 72.359178][ T8515] syscall_exit_to_user_mode+0x19/0x60 [ 72.364648][ T8515] do_syscall_64+0x42/0xb0 [ 72.369089][ T8515] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 72.374983][ T8515] RIP: 0033:0x452de9 [ 72.378874][ T8515] Code: Unable to access opcode bytes at RIP 0x452dbf. [ 72.385713][ T8515] RSP: 002b:00007ff0c7c02218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 72.394125][ T8515] RAX: fffffffffffffe00 RBX: 00000000004cc4d8 RCX: 0000000000452de9 [ 72.402093][ T8515] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000004cc4d8 [ 72.410060][ T8515] RBP: 00000000004cc4d0 R08: 0000000000000000 R09: 0000000000000000 [ 72.418028][ T8515] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cc4dc [ 72.426080][ T8515] R13: 00007ffe97a1a50f R14: 00007ff0c7c02300 R15: 0000000000022000 [ 72.435533][ T8515] Kernel Offset: disabled [ 72.439933][ T8515] Rebooting in 86400 seconds..