[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.14' (ECDSA) to the list of known hosts. syzkaller login: [ 92.841360][ T8521] IPVS: ftp: loaded support on port[0] = 21 [ 92.853514][ T8522] IPVS: ftp: loaded support on port[0] = 21 [ 92.912798][ T8525] IPVS: ftp: loaded support on port[0] = 21 [ 93.004101][ T8524] IPVS: ftp: loaded support on port[0] = 21 [ 93.029324][ T8523] IPVS: ftp: loaded support on port[0] = 21 [ 93.038833][ T8520] IPVS: ftp: loaded support on port[0] = 21 [ 93.634438][ T56] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 93.671743][ T56] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 93.710012][ T25] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 93.729262][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 93.738782][ T25] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 93.773211][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 93.799420][ T25] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 93.817355][ T56] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 93.825420][ T56] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 93.834666][ T25] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 93.847877][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 93.889673][ T25] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 93.889754][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 93.909244][ T25] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 93.930149][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 93.932670][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 93.955572][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 93.993627][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 94.043762][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.043970][ T25] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.055393][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.061785][ T25] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.079762][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 94.098037][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 94.144980][ T56] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.167724][ T56] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.187680][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program executing program [ 94.260144][ T8804] loop2: detected capacity change from 16383 to 0 executing program [ 94.312557][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.314242][ T25] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.320679][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.326959][ T8818] loop3: detected capacity change from 16383 to 0 [ 94.342912][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 94.355286][ T25] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.368947][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 94.392599][ T8822] loop4: detected capacity change from 16383 to 0 [ 94.403441][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.414057][ T8804] EXT4-fs error (device loop2): ext4_fill_super:4943: inode #2: comm syz-executor414: iget: bogus i_mode (177777) [ 94.438836][ T8818] EXT4-fs error (device loop3): ext4_fill_super:4943: inode #2: comm syz-executor414: iget: bogus i_mode (177777) [ 94.448032][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.457014][ T8818] EXT4-fs (loop3): get root inode failed [ 94.466034][ T8818] EXT4-fs (loop3): mount failed [ 94.485520][ T8822] EXT4-fs error (device loop4): ext4_fill_super:4943: inode #2: comm syz-executor414: iget: bogus i_mode (177777) [ 94.498133][ T8804] EXT4-fs (loop2): get root inode failed [ 94.498155][ T8804] EXT4-fs (loop2): mount failed [ 94.506491][ T8719] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 94.524145][ T8822] EXT4-fs (loop4): get root inode failed [ 94.531660][ T8822] EXT4-fs (loop4): mount failed executing program executing program [ 94.587844][ T8818] loop3: detected capacity change from 16383 to 0 [ 94.600875][ T8821] loop2: detected capacity change from 16383 to 0 executing program [ 94.630615][ T8818] EXT4-fs error (device loop3): ext4_fill_super:4943: inode #2: comm syz-executor414: iget: bogus i_mode (177777) [ 94.644697][ T8818] EXT4-fs (loop3): get root inode failed [ 94.652731][ T8818] EXT4-fs (loop3): mount failed [ 94.667092][ T8846] loop1: detected capacity change from 16383 to 0 [ 94.707955][ T8852] loop5: detected capacity change from 16383 to 0 [ 94.718964][ T8821] EXT4-fs error (device loop2): ext4_fill_super:4943: inode #2: comm syz-executor414: iget: bogus i_mode (177777) [ 94.719368][ T8851] loop0: detected capacity change from 16383 to 0 [ 94.740542][ T8821] EXT4-fs (loop2): get root inode failed [ 94.748023][ T8821] EXT4-fs (loop2): mount failed [ 94.748620][ T8822] loop4: detected capacity change from 16383 to 0 [ 94.817149][ T8719] Bluetooth: hci0: command 0x0409 tx timeout [ 94.817483][ T7] Bluetooth: hci1: command 0x0409 tx timeout [ 94.833488][ T8846] EXT4-fs error (device loop1): ext4_fill_super:4943: inode #2: comm syz-executor414: iget: bogus i_mode (177777) [ 94.848113][ T8846] EXT4-fs (loop1): get root inode failed [ 94.854501][ T8851] EXT4-fs error (device loop0): ext4_fill_super:4943: inode #2: comm syz-executor414: iget: bogus i_mode (177777) [ 94.856594][ T8852] EXT4-fs error (device loop5): ext4_fill_super:4943: inode #2: comm syz-executor414: iget: bogus i_mode (177777) [ 94.868769][ T8846] EXT4-fs (loop1): mount failed [ 94.879702][ T8852] EXT4-fs (loop5): get root inode failed [ 94.890088][ T8851] EXT4-fs (loop0): get root inode failed [ 94.890108][ T8851] EXT4-fs (loop0): mount failed [ 94.897939][ T7] Bluetooth: hci2: command 0x0409 tx timeout [ 94.911295][ T8822] EXT4-fs warning (device loop4): ext4_multi_mount_protect:385: Unable to create kmmpd thread for loop4. [ 94.923251][ T8852] EXT4-fs (loop5): mount failed [ 94.976141][ T8719] Bluetooth: hci5: command 0x0409 tx timeout [ 94.983693][ T8719] Bluetooth: hci3: command 0x0409 tx timeout [ 94.990821][ T8719] Bluetooth: hci4: command 0x0409 tx timeout executing program executing program [ 95.237500][ T8887] loop3: detected capacity change from 16383 to 0 executing program [ 95.339790][ T8886] loop2: detected capacity change from 16383 to 0 executing program executing program [ 95.428603][ T8897] loop4: detected capacity change from 16383 to 0 [ 95.428619][ T8887] EXT4-fs error (device loop3): ext4_fill_super:4943: inode #2: comm syz-executor414: iget: bogus i_mode (177777) [ 95.459199][ T8909] loop1: detected capacity change from 16383 to 0 executing program [ 95.476848][ T8886] EXT4-fs error (device loop2): ext4_fill_super:4943: inode #2: comm syz-executor414: iget: bogus i_mode (177777) [ 95.515368][ T8886] EXT4-fs (loop2): get root inode failed [ 95.522228][ T8886] EXT4-fs (loop2): mount failed [ 95.527729][ T8916] loop0: detected capacity change from 16383 to 0 [ 95.530128][ T8887] EXT4-fs (loop3): get root inode failed [ 95.540312][ T8897] EXT4-fs error (device loop4): ext4_fill_super:4943: inode #2: comm syz-executor414: iget: bogus i_mode (177777) [ 95.573447][ T8909] EXT4-fs error (device loop1): ext4_fill_super:4943: inode #2: comm syz-executor414: iget: bogus i_mode (177777) [ 95.588529][ T8909] EXT4-fs (loop1): get root inode failed [ 95.589008][ T8925] loop5: detected capacity change from 16383 to 0 [ 95.595169][ T8909] EXT4-fs (loop1): mount failed [ 95.609092][ T8897] EXT4-fs (loop4): get root inode failed [ 95.615007][ T8916] EXT4-fs error (device loop0): ext4_fill_super:4943: inode #2: comm syz-executor414: iget: bogus i_mode (177777) [ 95.629531][ T8897] EXT4-fs (loop4): mount failed [ 95.646532][ T8897] ------------[ cut here ]------------ [ 95.652143][ T7] general protection fault, probably for non-canonical address 0xdffffc000000000c: 0000 [#1] PREEMPT SMP KASAN [ 95.663863][ T7] KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067] [ 95.667655][ T8887] EXT4-fs (loop3): mount failed [ 95.672270][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.10.0-next-20201218-syzkaller #0 [ 95.672296][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 95.672310][ T7] Workqueue: events flush_stashed_error_work [ 95.672354][ T7] RIP: 0010:ext4_commit_super+0x52/0x510 [ 95.707865][ T7] Code: 48 c1 ea 03 80 3c 02 00 0f 85 21 04 00 00 48 8b 9d 78 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 60 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f1 03 00 00 48 8b 5b 60 48 85 db 0f 84 13 01 00 [ 95.727489][ T7] RSP: 0018:ffffc90000cc7cb8 EFLAGS: 00010206 [ 95.733576][ T7] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 95.741562][ T7] RDX: 000000000000000c RSI: ffffffff8217a0db RDI: 0000000000000060 [ 95.749549][ T7] RBP: ffff88802441c000 R08: 0000000000000000 R09: 0000000000000000 [ 95.757537][ T7] R10: ffffffff8217a7fa R11: 0000000000000000 R12: ffff88802441c000 [ 95.765524][ T7] R13: ffff88802441c678 R14: ffff8880109a5a00 R15: ffff8880b9c34440 [ 95.773530][ T7] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 95.782489][ T7] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.789194][ T7] CR2: 0000000000400200 CR3: 0000000014038000 CR4: 00000000001506f0 [ 95.797180][ T7] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 95.805162][ T7] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 95.813158][ T7] Call Trace: [ 95.816467][ T7] flush_stashed_error_work+0x1c9/0x2a0 [ 95.822032][ T7] process_one_work+0x98d/0x1630 [ 95.826995][ T7] ? pwq_dec_nr_in_flight+0x320/0x320 [ 95.832404][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 95.837361][ T7] ? _raw_spin_lock_irq+0x41/0x50 [ 95.842447][ T7] worker_thread+0x64c/0x1120 [ 95.847150][ T7] ? process_one_work+0x1630/0x1630 [ 95.852366][ T7] kthread+0x3b1/0x4a0 [ 95.856475][ T7] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 95.862388][ T7] ret_from_fork+0x1f/0x30 [ 95.866851][ T7] Modules linked in: [ 95.885779][ T7] ---[ end trace dca7dc492b64f0a6 ]--- [ 95.887015][ T8916] EXT4-fs (loop0): get root inode failed [ 95.891767][ T7] RIP: 0010:ext4_commit_super+0x52/0x510 [ 95.897547][ T8916] EXT4-fs (loop0): mount failed [ 95.910440][ T8897] ODEBUG: free active (active state 0) object type: work_struct hint: flush_stashed_error_work+0x0/0x2a0 [ 95.910970][ T8925] EXT4-fs error (device loop5): ext4_fill_super:4943: inode #2: comm syz-executor414: iget: bogus i_mode (177777) [ 95.935646][ T8897] WARNING: CPU: 0 PID: 8897 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 [ 95.940258][ T8925] EXT4-fs (loop5): get root inode failed [ 95.949745][ T7] Code: 48 c1 ea 03 80 3c 02 00 0f 85 21 04 00 00 48 8b 9d 78 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 60 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f1 03 00 00 48 8b 5b 60 48 85 db 0f 84 13 01 00 [ 95.951509][ T8925] EXT4-fs (loop5): mount failed [ 95.970661][ T7] RSP: 0018:ffffc90000cc7cb8 EFLAGS: 00010206 [ 95.982183][ T7] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 95.986820][ T8897] Modules linked in: [ 95.990300][ T7] RDX: 000000000000000c RSI: ffffffff8217a0db RDI: 0000000000000060 [ 95.994651][ T8897] [ 96.004565][ T7] RBP: ffff88802441c000 R08: 0000000000000000 R09: 0000000000000000 [ 96.008945][ T8897] CPU: 1 PID: 8897 Comm: syz-executor414 Tainted: G D 5.10.0-next-20201218-syzkaller #0 [ 96.014792][ T7] R10: ffffffff8217a7fa R11: 0000000000000000 R12: ffff88802441c000 [ 96.024906][ T8897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.033246][ T7] R13: ffff88802441c678 R14: ffff8880109a5a00 R15: ffff8880b9c34440 [ 96.042702][ T8897] RIP: 0010:debug_print_object+0x16e/0x250 [ 96.051634][ T7] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 96.059655][ T8897] Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd 20 af bf 89 4c 89 ee 48 c7 c7 20 a3 bf 89 e8 30 78 05 05 <0f> 0b 83 05 55 8a b9 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3 [ 96.074282][ T7] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 96.086448][ T8897] RSP: 0018:ffffc900026a79b8 EFLAGS: 00010282 [ 96.093452][ T7] CR2: 0000000000400200 CR3: 0000000025563000 CR4: 00000000001506f0 [ 96.099118][ T8897] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 96.109117][ T7] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 96.124201][ T8897] RDX: ffff8880174d3600 RSI: ffffffff815b95f5 RDI: fffff520004d4f29 [ 96.124394][ T7] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 96.133220][ T8897] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 96.141941][ T7] Kernel panic - not syncing: Fatal exception [ 96.148912][ T8897] R10: ffffffff815b7a4b R11: 0000000000000000 R12: ffffffff896ae040 [ 96.155138][ T7] Kernel Offset: disabled [ 96.167416][ T7] Rebooting in 86400 seconds..