[ 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 '10.128.0.211' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 83.927635] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 83.936369] REISERFS (device loop0): using ordered data mode [ 83.942234] reiserfs: using flush barriers [ 83.949058] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 0, max trans age 30 [ 83.965097] REISERFS (device loop0): checking transaction log (loop0) [ 84.025171] REISERFS warning (device loop0): vs-13075 reiserfs_read_locked_inode: dead inode read from disk [1 2 0x0 SD]. This is likely to be race with knfsd. Ignore [ 84.040637] REISERFS (device loop0): Using r5 hash to sort names [ 84.047080] REISERFS (device loop0): using 3.5.x disk format [ 84.111525] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 84.120350] REISERFS (device loop0): using ordered data mode [ 84.127381] reiserfs: using flush barriers [ 84.133372] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 0, max trans age 30 [ 84.149260] REISERFS (device loop0): checking transaction log (loop0) executing program [ 84.210244] REISERFS warning (device loop0): vs-13075 reiserfs_read_locked_inode: dead inode read from disk [1 2 0x0 SD]. This is likely to be race with knfsd. Ignore [ 84.226228] REISERFS (device loop0): Using r5 hash to sort names [ 84.232878] REISERFS (device loop0): using 3.5.x disk format [ 84.344604] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 84.353320] REISERFS (device loop0): using ordered data mode [ 84.359425] reiserfs: using flush barriers [ 84.365263] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 0, max trans age 30 [ 84.382695] REISERFS (device loop0): checking transaction log (loop0) [ 84.451215] REISERFS warning (device loop0): vs-13075 reiserfs_read_locked_inode: dead inode read from disk [1 2 0x0 SD]. This is likely to be race with knfsd. Ignore [ 84.467223] REISERFS (device loop0): Using r5 hash to sort names [ 84.473882] REISERFS (device loop0): using 3.5.x disk format [ 84.532795] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 84.541474] REISERFS (device loop0): using ordered data mode [ 84.548336] reiserfs: using flush barriers [ 84.554215] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 0, max trans age 30 [ 84.570879] REISERFS (device loop0): checking transaction log (loop0) [ 84.629837] REISERFS warning (device loop0): vs-13075 reiserfs_read_locked_inode: dead inode read from disk [1 2 0x0 SD]. This is likely to be race with knfsd. Ignore [ 84.646146] REISERFS (device loop0): Using r5 hash to sort names [ 84.652296] REISERFS (device loop0): using 3.5.x disk format [ 84.659039] ------------[ cut here ]------------ [ 84.663903] kernel BUG at fs/reiserfs/journal.c:3643! [ 84.669868] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 84.675226] CPU: 0 PID: 8143 Comm: syz-executor549 Not tainted 4.19.160-syzkaller #0 [ 84.683111] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.692499] RIP: 0010:do_journal_end+0x3601/0x4840 [ 84.697428] Code: 05 0f ff ff e9 9a f9 ff ff e8 1b 16 8a ff 0f 0b e8 14 16 8a ff 0f 0b e8 0d 16 8a ff 0f 0b e8 06 16 8a ff 0f 0b e8 ff 15 8a ff <0f> 0b e8 f8 15 8a ff 0f 0b e8 f1 15 8a ff 48 8b 44 24 08 48 8b 54 [ 84.716342] RSP: 0018:ffff888094f6f998 EFLAGS: 00010293 [ 84.721710] RAX: ffff8880af8a4040 RBX: ffffc90005b6d000 RCX: ffffffff81da8a13 [ 84.728977] RDX: 0000000000000000 RSI: ffffffff81dab9f1 RDI: 0000000000000007 [ 84.736241] RBP: ffff8880af074040 R08: 0000000000000001 R09: 0000000000000000 [ 84.743518] R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000000 [ 84.750792] R13: ffffc90005b6d058 R14: ffff888094f6fbc8 R15: 0000000000000000 [ 84.758054] FS: 00007f896badd700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 84.766281] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 84.772163] CR2: 00007f1e73c7e000 CR3: 00000000a520a000 CR4: 00000000001406f0 [ 84.779437] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 84.786702] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 84.793959] Call Trace: [ 84.796547] ? reiserfs_info.cold+0x1d/0x7c [ 84.800859] journal_end+0x277/0x310 [ 84.804577] reiserfs_fill_super+0x2002/0x2ce4 [ 84.809162] ? reiserfs_remount+0x1540/0x1540 [ 84.813639] ? lock_downgrade+0x720/0x720 [ 84.817786] ? snprintf+0xbb/0xf0 [ 84.821224] ? wait_for_completion_io+0x10/0x10 [ 84.825884] mount_bdev+0x2fc/0x3b0 [ 84.829508] ? reiserfs_remount+0x1540/0x1540 [ 84.833999] mount_fs+0xa3/0x30c [ 84.837364] vfs_kern_mount.part.0+0x68/0x470 [ 84.841862] do_mount+0x113c/0x2f10 [ 84.845492] ? do_raw_spin_unlock+0x171/0x230 [ 84.849981] ? check_preemption_disabled+0x41/0x280 [ 84.855003] ? copy_mount_string+0x40/0x40 [ 84.859220] ? copy_mount_options+0x59/0x380 [ 84.863611] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 84.868616] ? kmem_cache_alloc_trace+0x323/0x380 [ 84.873499] ? copy_mount_options+0x26f/0x380 [ 84.878776] ksys_mount+0xcf/0x130 [ 84.882300] __x64_sys_mount+0xba/0x150 [ 84.886263] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 84.890857] do_syscall_64+0xf9/0x620 [ 84.894657] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 84.899843] RIP: 0033:0x44d44a [ 84.903033] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 5d a1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 3a a1 fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 84.921940] RSP: 002b:00007f896badcbf8 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 84.929631] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 000000000044d44a [ 84.936883] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f896badcc10 [ 84.944135] RBP: 00007f896badcc10 R08: 00007f896badcc50 R09: 0000000000000000 [ 84.951410] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000005 [ 84.958662] R13: 00007f896badcc50 R14: 00007f896badd6d0 R15: 0000000000000005 [ 84.965920] Modules linked in: [ 84.972420] ---[ end trace b9d9254ae70ff727 ]--- [ 84.977269] RIP: 0010:do_journal_end+0x3601/0x4840 [ 84.982247] Code: 05 0f ff ff e9 9a f9 ff ff e8 1b 16 8a ff 0f 0b e8 14 16 8a ff 0f 0b e8 0d 16 8a ff 0f 0b e8 06 16 8a ff 0f 0b e8 ff 15 8a ff <0f> 0b e8 f8 15 8a ff 0f 0b e8 f1 15 8a ff 48 8b 44 24 08 48 8b 54 [ 85.001333] RSP: 0018:ffff888094f6f998 EFLAGS: 00010293 [ 85.006793] RAX: ffff8880af8a4040 RBX: ffffc90005b6d000 RCX: ffffffff81da8a13 [ 85.014131] RDX: 0000000000000000 RSI: ffffffff81dab9f1 RDI: 0000000000000007 [ 85.021427] RBP: ffff8880af074040 R08: 0000000000000001 R09: 0000000000000000 [ 85.028771] R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000000 [ 85.036181] R13: ffffc90005b6d058 R14: ffff888094f6fbc8 R15: 0000000000000000 [ 85.043512] FS: 00007f896badd700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 85.051737] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.057649] CR2: 000056241f362de0 CR3: 00000000a520a000 CR4: 00000000001406e0 [ 85.064996] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 85.072280] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 85.079600] Kernel panic - not syncing: Fatal exception [ 85.085475] Kernel Offset: disabled [ 85.089094] Rebooting in 86400 seconds..