[ 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 '10.128.0.64' (ECDSA) to the list of known hosts. syzkaller login: [ 559.397662][ T6567] loop0: detected capacity change from 0 to 1084 [ 559.408320][ T6567] ntfs: (device loop0): is_boot_sector_ntfs(): Invalid end of sector marker. [ 559.421587][ T6567] ntfs: (device loop0): map_mft_record_page(): Mft record 0x1 is corrupt. Run chkdsk. [ 559.431695][ T6567] ntfs: (device loop0): map_mft_record(): Failed with error code 5. [ 559.439694][ T6567] ntfs: (device loop0): ntfs_read_locked_inode(): Failed with error code -5. Marking corrupt inode 0x1 as bad. Run chkdsk. [ 559.454844][ T6567] ntfs: (device loop0): load_system_files(): Failed to load $MFTMirr. Mounting read-only. Run ntfsfix and/or chkdsk. [ 559.469660][ T6567] ntfs: (device loop0): map_mft_record_page(): Mft record 0xa is corrupt. Run chkdsk. [ 559.480767][ T6567] ntfs: (device loop0): map_mft_record(): Failed with error code 5. [ 559.488794][ T6567] ntfs: (device loop0): ntfs_read_locked_inode(): Failed with error code -5. Marking corrupt inode 0xa as bad. Run chkdsk. [ 559.503251][ T6567] ntfs: (device loop0): load_and_init_upcase(): Failed to load $UpCase from the volume. Using default. [ 559.531768][ T6567] ntfs: volume version 3.1. [ 559.536310][ T6567] ntfs: (device loop0): map_mft_record_page(): Mft record 0x2 is corrupt. Run chkdsk. [ 716.056074][ T26] INFO: task syz-executor613:6567 can't die for more than 143 seconds. [ 716.064470][ T26] task:syz-executor613 state:R running task stack:26880 pid: 6567 ppid: 6566 flags:0x00004006 [ 716.078067][ T26] Call Trace: [ 716.081377][ T26] ? mark_held_locks+0x9f/0xe0 [ 716.087859][ T26] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 716.094163][ T26] ? lockdep_hardirqs_on+0x79/0x100 [ 716.100871][ T26] ? mark_held_locks+0x9f/0xe0 [ 716.105667][ T26] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 716.113256][ T26] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 716.120278][ T26] ? lockdep_hardirqs_on+0x79/0x100 [ 716.125501][ T26] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 716.133006][ T26] ? __sanitizer_cov_trace_pc+0x37/0x60 [ 716.139476][ T26] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 716.145761][ T26] ? ntfs_collate_names+0x244/0x3d0 [ 716.152418][ T26] ? ntfs_lookup_inode_by_name+0x62d/0x34b0 [ 716.160110][ T26] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 716.167253][ T26] ? __ntfs_warning+0x116/0x160 [ 716.172179][ T26] ? ntfs_read_compressed_block+0x3e10/0x3e10 [ 716.179539][ T26] ? load_and_init_usnjrnl+0xda/0x1180 [ 716.185019][ T26] ? load_and_init_quota+0x17a/0x3e0 [ 716.191849][ T26] ? ntfs_remount+0x560/0x560 [ 716.197723][ T26] ? ntfs_statfs+0xf00/0xf00 [ 716.202359][ T26] ? iput.part.0+0x539/0x850 [ 716.208608][ T26] ? ntfs_fill_super+0x7adc/0x84e0 [ 716.213895][ T26] ? load_and_init_usnjrnl+0x1180/0x1180 [ 716.220893][ T26] ? vsprintf+0x30/0x30 [ 716.225150][ T26] ? up_write+0x148/0x470 [ 716.230784][ T26] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 716.238275][ T26] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 716.244016][ T26] ? set_blocksize+0x1c1/0x3b0 [ 716.250223][ T26] ? mount_bdev+0x34d/0x410 [ 716.254809][ T26] ? load_and_init_usnjrnl+0x1180/0x1180 [ 716.261849][ T26] ? ntfs_rl_punch_nolock+0x1d10/0x1d10 [ 716.268287][ T26] ? legacy_get_tree+0x105/0x220 [ 716.273486][ T26] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 716.282238][ T26] ? vfs_get_tree+0x89/0x2f0 [ 716.287882][ T26] ? path_mount+0x1320/0x1fa0 [ 716.292599][ T26] ? kmem_cache_free+0x3d4/0x5b0 [ 716.298969][ T26] ? putname.part.0+0xe1/0x120 [ 716.303804][ T26] ? finish_automount+0xaf0/0xaf0 [ 716.310397][ T26] ? putname.part.0+0xe1/0x120 [ 716.315292][ T26] ? __x64_sys_mount+0x27f/0x300 [ 716.321884][ T26] ? copy_mnt_ns+0xae0/0xae0 [ 716.327637][ T26] ? syscall_enter_from_user_mode+0x21/0x70 [ 716.333559][ T26] ? do_syscall_64+0x35/0xb0 [ 716.339422][ T26] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 716.345614][ T26] [ 716.345614][ T26] Showing all locks held in the system: [ 716.354670][ T26] 1 lock held by khungtaskd/26: [ 716.361595][ T26] #0: ffffffff8b97fbe0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 [ 716.372525][ T26] 1 lock held by in:imklog/6267: [ 716.379238][ T26] #0: ffff888014daf9f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 [ 716.389227][ T26] 1 lock held by syz-executor613/6567: [ 716.394720][ T26] [ 716.398309][ T26] ============================================= [ 716.398309][ T26] [ 716.407539][ T26] Kernel panic - not syncing: hung_task: blocked tasks [ 716.414383][ T26] CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.14.0-rc7-next-20210827-syzkaller #0 [ 716.423753][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.433805][ T26] Call Trace: [ 716.437085][ T26] dump_stack_lvl+0xcd/0x134 [ 716.441756][ T26] panic+0x2b0/0x6dd [ 716.445675][ T26] ? __warn_printk+0xf3/0xf3 [ 716.450285][ T26] ? watchdog.cold+0x1b9/0x1de [ 716.455075][ T26] watchdog.cold+0x1ca/0x1de [ 716.459675][ T26] ? trace_sched_process_hang+0x280/0x280 [ 716.465404][ T26] kthread+0x3e5/0x4d0 [ 716.469529][ T26] ? set_kthread_struct+0x130/0x130 [ 716.474738][ T26] ret_from_fork+0x1f/0x30 [ 716.480675][ T26] Kernel Offset: disabled [ 716.485005][ T26] Rebooting in 86400 seconds..