[ 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 '10.128.1.100' (ECDSA) to the list of known hosts. syzkaller login: [ 394.824589] IPVS: ftp: loaded support on port[0] = 21 executing program [ 394.903413] ERROR: (device loop0): diAllocBit: iag inconsistent [ 394.903413] [ 394.916860] ------------[ cut here ]------------ [ 394.921793] kernel BUG at fs/jfs/super.c:138! [ 394.930444] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 394.935825] Modules linked in: [ 394.939015] CPU: 1 PID: 7982 Comm: syz-executor324 Not tainted 4.14.295-syzkaller #0 [ 394.946886] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 394.956246] task: ffff8880972302c0 task.stack: ffff888092b78000 [ 394.962289] RIP: 0010:jfs_destroy_inode+0x16f/0x1c0 [ 394.967284] RSP: 0018:ffff888092b7fb50 EFLAGS: 00010297 [ 394.972626] RAX: ffff8880972302c0 RBX: ffff88808df0e568 RCX: 1ffff11012e4616e [ 394.979877] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88808df0e568 [ 394.987128] RBP: ffff88808df0e230 R08: 0000000000000000 R09: 0000000000000001 [ 394.994376] R10: 0000000000000000 R11: ffff8880972302c0 R12: ffff888092b7fc30 [ 395.001628] R13: ffff88808df0e710 R14: ffffed101256ff86 R15: ffff88808df0e568 [ 395.009054] FS: 00005555571a1300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 395.017388] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 395.023249] CR2: 00005601b1669160 CR3: 0000000008e6a000 CR4: 00000000003406e0 [ 395.030506] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 395.037766] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 395.045018] Call Trace: [ 395.047593] ? jfs_sync_fs+0xa0/0xa0 [ 395.051289] destroy_inode+0xb9/0x110 [ 395.055076] dispose_list+0x109/0x1e0 [ 395.058856] evict_inodes+0x2cd/0x3a0 [ 395.062651] ? dispose_list+0x1e0/0x1e0 [ 395.066614] ? fsnotify_unmount_inodes+0x1b4/0x210 [ 395.071525] generic_shutdown_super+0xb3/0x370 [ 395.076086] kill_block_super+0x95/0xe0 [ 395.080039] deactivate_locked_super+0x6c/0xd0 [ 395.084602] deactivate_super+0x7f/0xa0 [ 395.088557] cleanup_mnt+0x186/0x2c0 [ 395.092254] task_work_run+0x11f/0x190 [ 395.096122] do_exit+0xa44/0x2850 [ 395.099555] ? __do_page_fault+0x571/0xad0 [ 395.103769] ? mm_update_next_owner+0x5b0/0x5b0 [ 395.108419] ? lock_downgrade+0x740/0x740 [ 395.112548] do_group_exit+0x100/0x2e0 [ 395.116417] SyS_exit_group+0x19/0x20 [ 395.120198] ? do_group_exit+0x2e0/0x2e0 [ 395.124239] do_syscall_64+0x1d5/0x640 [ 395.128110] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 395.133279] RIP: 0033:0x7f86cab335a9 [ 395.136969] RSP: 002b:00007ffe1e8f8458 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 395.144658] RAX: ffffffffffffffda RBX: 00007f86cabb6330 RCX: 00007f86cab335a9 [ 395.151906] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 395.159156] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f86cabb0e40 [ 395.166408] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f86cabb6330 [ 395.173657] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 395.180934] Code: e1 1c ff 4c 89 ef e8 a1 fc eb 04 48 8d bb d0 01 00 00 5b 48 c7 c6 00 67 38 82 5d 41 5c 41 5d 41 5e e9 a6 88 0e ff e8 11 e1 1c ff <0f> 0b 4c 89 e7 e8 57 99 46 ff e9 06 ff ff ff 4c 89 e7 e8 fa 9b [ 395.200035] RIP: jfs_destroy_inode+0x16f/0x1c0 RSP: ffff888092b7fb50 [ 395.207901] ---[ end trace 726aae4973854e20 ]--- [ 395.213147] Kernel panic - not syncing: Fatal exception [ 395.218568] Kernel Offset: disabled [ 395.222190] Rebooting in 86400 seconds..