INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.21' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.329698] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 27.338325] REISERFS (device loop0): using ordered data mode [ 27.344273] reiserfs: using flush barriers [ 27.349160] REISERFS warning (device loop0): sh-460 journal_init: journal header magic 0 (device loop0) does not match to magic found in super block 4c3955ba [ 27.364139] REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space executing program [ 27.446459] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 27.454997] REISERFS (device loop0): using ordered data mode [ 27.460857] reiserfs: using flush barriers [ 27.467076] REISERFS warning (device loop0): sh-460 journal_init: journal header magic 0 (device loop0) does not match to magic found in super block 4c3955ba [ 27.481650] REISERFS warning (device loop0): sh-2022 reiserfs_fill_super: unable to initialize journal space executing program [ 27.654434] syzkaller001137 (4456) used greatest stack depth: 15592 bytes left [ 27.667502] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 27.676503] REISERFS (device loop0): using ordered data mode [ 27.682434] reiserfs: using flush barriers [ 27.687562] REISERFS warning (device loop0): sh-460 journal_init: journal header magic 0 (device loop0) does not match to magic found in super block 4c3955ba [ 27.701822] BUG: unable to handle kernel paging request at ffffc90001f23000 [ 27.708911] PGD 1dad42067 P4D 1dad42067 PUD 1dad43067 PMD 1b0857067 PTE 0 [ 27.715837] Oops: 0000 [#1] SMP KASAN [ 27.719619] Dumping ftrace buffer: [ 27.723138] (ftrace buffer empty) [ 27.726834] Modules linked in: [ 27.730015] CPU: 0 PID: 4461 Comm: syzkaller001137 Not tainted 4.16.0+ #13 [ 27.737009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.746359] RIP: 0010:cleanup_bitmap_list.isra.7.part.8+0x3dd/0x6b0 [ 27.752743] RSP: 0018:ffff8801adc7f0b0 EFLAGS: 00010246 [ 27.758090] RAX: 0000000000001000 RBX: dffffc0000000000 RCX: ffffc90001f202b0 [ 27.765345] RDX: 1ffff920003e4600 RSI: 0000000000008000 RDI: 0000000000000001 [ 27.772594] RBP: ffff8801adc7f188 R08: ffffed003b6046c3 R09: ffffed003b6046c3 [ 27.779832] R10: 0000000000000001 R11: ffffed003b6046c2 R12: ffffc90001f23000 [ 27.787073] R13: 0000000000000200 R14: ffff8801d962fb40 R15: ffff8801d9a08a80 [ 27.794312] FS: 00007f2354935700(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 [ 27.802503] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.808351] CR2: ffffc90001f23000 CR3: 00000001b0f93000 CR4: 00000000001406f0 [ 27.815592] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.822831] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.830076] Call Trace: [ 27.832643] ? journal_transaction_is_valid+0xbc0/0xbc0 [ 27.837976] free_list_bitmaps+0x6f/0xf0 [ 27.842010] free_journal_ram+0x148/0x5a0 [ 27.846134] ? kasan_check_write+0x14/0x20 [ 27.850336] ? __brelse+0xfe/0x170 [ 27.853846] ? free_list_bitmaps+0xf0/0xf0 [ 27.858056] ? __might_sleep+0x95/0x190 [ 27.861999] journal_init+0x2320/0x6320 [ 27.865949] ? wake_up_klogd+0xc3/0x100 [ 27.869892] ? is_console_locked+0x20/0x20 [ 27.874095] ? console_unlock+0x5f5/0xfb0 [ 27.878212] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 27.883200] ? journal_release_error+0xa0/0xa0 [ 27.887751] ? wake_up_klogd+0x100/0x100 [ 27.891780] ? __down_trylock_console_sem+0xb9/0x1e0 [ 27.896851] ? vprintk_emit+0x5b5/0xb90 [ 27.900795] ? vprintk_emit+0x5b5/0xb90 [ 27.904739] ? __down_trylock_console_sem+0x10d/0x1e0 [ 27.909896] ? vprintk_emit+0x4b5/0xb90 [ 27.913841] ? kasan_check_write+0x14/0x20 [ 27.918055] ? console_unlock+0xfb0/0xfb0 [ 27.922174] ? _raw_spin_unlock+0x22/0x30 [ 27.926291] ? vprintk_func+0x5e/0xc0 [ 27.930063] ? printk+0xaa/0xca [ 27.933310] ? show_regs_print_info+0x18/0x18 [ 27.937774] ? vprintk_default+0x28/0x30 [ 27.941805] ? vprintk_func+0x5e/0xc0 [ 27.945574] ? printk+0xaa/0xca [ 27.948822] ? show_regs_print_info+0x18/0x18 [ 27.953285] ? memset+0x31/0x40 [ 27.956533] ? reiserfs_fill_super+0x32c4/0x33a0 [ 27.961260] reiserfs_fill_super+0xf9f/0x33a0 [ 27.965726] ? finish_unfinished+0x1460/0x1460 [ 27.970279] ? netdev_bits+0xa0/0xa0 [ 27.973963] ? ns_test_super+0x50/0x50 [ 27.977820] ? format_decode+0x10a/0x830 [ 27.981852] ? vsnprintf+0x1ed/0x1900 [ 27.985621] ? pointer+0x9c0/0x9c0 [ 27.989131] ? cap_capable+0x1b5/0x230 [ 27.992989] ? snprintf+0xc0/0xf0 [ 27.996420] ? vsprintf+0x40/0x40 [ 27.999847] ? ns_capable_common+0xcf/0x160 [ 28.004139] ? set_blocksize+0x1f1/0x260 [ 28.008169] mount_bdev+0x2b7/0x370 [ 28.011765] ? finish_unfinished+0x1460/0x1460 [ 28.016315] get_super_block+0x34/0x40 [ 28.020172] mount_fs+0x66/0x2d0 [ 28.023520] vfs_kern_mount.part.26+0xc6/0x4a0 [ 28.028073] ? may_umount+0xa0/0xa0 [ 28.031672] ? _raw_read_unlock+0x22/0x30 [ 28.035792] ? __get_fs_type+0x8a/0xc0 [ 28.039647] do_mount+0xea4/0x2b90 [ 28.043158] ? copy_mount_string+0x40/0x40 [ 28.047364] ? rcu_pm_notify+0xc0/0xc0 [ 28.051223] ? copy_mount_options+0x5f/0x2e0 [ 28.055600] ? rcu_read_lock_sched_held+0x108/0x120 [ 28.060589] ? kmem_cache_alloc_trace+0x459/0x740 [ 28.065400] ? kasan_check_write+0x14/0x20 [ 28.069604] ? _copy_from_user+0x99/0x110 [ 28.073720] ? copy_mount_options+0x1f7/0x2e0 [ 28.078182] ksys_mount+0xab/0x120 [ 28.081692] SyS_mount+0x39/0x50 [ 28.085034] ? ksys_mount+0x120/0x120 [ 28.088809] do_syscall_64+0x281/0x940 [ 28.092665] ? vmalloc_sync_all+0x30/0x30 [ 28.096782] ? finish_task_switch+0x1b9/0x970 [ 28.101246] ? finish_task_switch+0x17a/0x970 [ 28.105709] ? syscall_return_slowpath+0x550/0x550 [ 28.110605] ? syscall_return_slowpath+0x2ac/0x550 [ 28.115503] ? prepare_exit_to_usermode+0x350/0x350 [ 28.120489] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 28.125820] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.130641] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 28.135799] RIP: 0033:0x44990a [ 28.138958] RSP: 002b:00007f2354934cf8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 [ 28.146632] RAX: ffffffffffffffda RBX: 0000000020000100 RCX: 000000000044990a [ 28.153873] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f2354934d10 [ 28.161110] RBP: 0000000000000004 R08: 0000000020011500 R09: 000000000000000a [ 28.168349] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004 [ 28.175587] R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000004 [ 28.182829] Code: ff ff 4d 63 e5 4a 8d 04 e5 00 00 00 00 4c 8b 21 48 89 85 68 ff ff ff 49 01 c4 4c 89 e2 48 c1 ea 03 80 3c 1a 00 0f 85 76 02 00 00 <4d> 8b 24 24 4d 85 e4 0f 84 e5 fe ff ff e8 b1 81 8c ff 49 8d 7e [ 28.201898] RIP: cleanup_bitmap_list.isra.7.part.8+0x3dd/0x6b0 RSP: ffff8801adc7f0b0 [ 28.209744] CR2: ffffc90001f23000 [ 28.213196] ---[ end trace 834bcfee184feda9 ]--- [ 28.217918] Kernel panic - not syncing: Fatal exception [ 28.223621] Dumping ftrace buffer: [ 28.227128] (ftrace buffer empty) [ 28.230805] Kernel Offset: disabled [ 28.234402] Rebooting in 86400 seconds..