[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.244' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 30.666363] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 30.732807] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 30.796297] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 30.886244] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 30.956334] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 31.035544] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 31.085585] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 31.172102] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 31.237027] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 31.316739] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 31.406770] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 31.483210] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 31.586188] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 31.676372] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 31.757261] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 31.825361] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 31.918330] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 32.006339] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 32.115909] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 32.175549] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 32.246077] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 32.326082] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 32.386536] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 32.476411] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 32.561029] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 32.635261] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 32.711105] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 32.806320] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 32.881276] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 32.954877] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 33.027355] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 33.115996] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 33.202293] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 33.275863] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 33.347396] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 33.421197] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 33.502798] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 33.574924] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 33.654919] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 33.724771] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 33.801609] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 33.874412] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 33.951039] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 34.040947] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 34.123390] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 34.195086] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 34.264170] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 34.331769] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 34.421028] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 34.484574] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 34.547550] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 34.631275] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 34.714433] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 34.795364] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 34.863446] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 34.923237] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 34.984013] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program [ 35.083089] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 35.176674] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 35.271031] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 35.353578] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 35.430110] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program [ 35.533976] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 37.365253] ------------[ cut here ]------------ [ 37.370153] kernel BUG at fs/ext4/inline.c:757! [ 37.380177] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 37.385547] Modules linked in: [ 37.388731] CPU: 0 PID: 8831 Comm: syz-executor797 Not tainted 4.14.290-syzkaller #0 [ 37.396701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 37.406032] task: ffff888091f264c0 task.stack: ffff88808fd50000 [ 37.412068] RIP: 0010:ext4_write_inline_data_end+0x368/0x490 [ 37.417844] RSP: 0018:ffff88808fd57930 EFLAGS: 00010297 [ 37.423182] RAX: ffff888091f264c0 RBX: 1ffff11011faaf2a RCX: 0000000000004889 [ 37.430429] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88808b8185d0 [ 37.437675] RBP: ffff88808b818770 R08: ffffffff8b9c4f48 R09: 000000000004040a [ 37.444920] R10: ffff888091f26dc0 R11: ffff888091f264c0 R12: ffffea0002578440 [ 37.452162] R13: 0000000000000010 R14: ffff88808fd57970 R15: ffff88808b8185d8 [ 37.459407] FS: 00007f3526572700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 [ 37.467608] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.473462] CR2: 00007f2b8200e000 CR3: 00000000999da000 CR4: 00000000003406f0 [ 37.480710] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.487954] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.495198] Call Trace: [ 37.497765] ? ext4_try_to_write_inline_data+0x1590/0x1590 [ 37.503365] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 37.508797] ext4_write_end+0x18d/0xca0 [ 37.512749] ext4_da_write_end+0x6da/0x8e0 [ 37.516959] generic_perform_write+0x268/0x420 [ 37.521523] ? filemap_page_mkwrite+0x2d0/0x2d0 [ 37.526169] ? current_time+0xb0/0xb0 [ 37.529946] ? ext4_file_write_iter+0x1cc/0xd20 [ 37.534604] __generic_file_write_iter+0x227/0x590 [ 37.539509] ext4_file_write_iter+0x276/0xd20 [ 37.543980] ? aa_file_perm+0x304/0xab0 [ 37.547928] ? ext4_file_read_iter+0x330/0x330 [ 37.552488] ? trace_hardirqs_on+0x10/0x10 [ 37.556711] ? iov_iter_init+0xa6/0x1c0 [ 37.560660] __vfs_write+0x44c/0x630 [ 37.564346] ? kernel_read+0x110/0x110 [ 37.568209] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 37.573196] vfs_write+0x17f/0x4d0 [ 37.576709] SyS_write+0xf2/0x210 [ 37.580150] ? SyS_read+0x210/0x210 [ 37.583763] ? __close_fd+0x159/0x230 [ 37.587542] ? do_syscall_64+0x4c/0x640 [ 37.591503] ? SyS_read+0x210/0x210 [ 37.595102] do_syscall_64+0x1d5/0x640 [ 37.598986] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 37.604147] RIP: 0033:0x7f35265c5cc9 [ 37.607831] RSP: 002b:00007f35265722f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 37.615511] RAX: ffffffffffffffda RBX: 000000000000003d RCX: 00007f35265c5cc9 [ 37.622761] RDX: 0000000000000010 RSI: 0000000020000280 RDI: 0000000000000003 [ 37.630006] RBP: 00007f352664b4a8 R08: 0000000000000000 R09: 0000000000000000 [ 37.637249] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f352664b4a0 [ 37.644491] R13: 00007f35266180bc R14: 0030656c69662f2e R15: e5d26e84aa4cf3c6 [ 37.651735] Code: 3c 02 00 0f 85 29 01 00 00 48 8b 7d 28 44 89 f9 ba ef 02 00 00 45 31 e4 48 c7 c6 e0 29 98 87 e8 ff a6 0c 00 eb 8d e8 e8 e4 9b ff <0f> 0b e8 e1 e4 9b ff 49 8d 7c 24 20 48 89 f8 48 c1 e8 03 42 80 [ 37.670804] RIP: ext4_write_inline_data_end+0x368/0x490 RSP: ffff88808fd57930 [ 37.679453] ---[ end trace 13b27a0c30edff87 ]--- [ 37.684211] Kernel panic - not syncing: Fatal exception [ 37.689708] Kernel Offset: disabled [ 37.693318] Rebooting in 86400 seconds..