[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.183' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 46.419043][ T6833] ERROR: (device loop0): xtSearch: XT_GETPAGE: xtree page corrupt [ 46.419043][ T6833] [ 46.430026][ T6833] BUG: unable to handle page fault for address: ffffffffffffff80 [ 46.437733][ T6833] #PF: supervisor read access in kernel mode [ 46.443686][ T6833] #PF: error_code(0x0000) - not-present page [ 46.449627][ T6833] PGD 9690067 P4D 9690067 PUD 9692067 PMD 0 [ 46.455586][ T6833] Oops: 0000 [#1] PREEMPT SMP KASAN [ 46.460753][ T6833] CPU: 1 PID: 6833 Comm: syz-executor577 Not tainted 5.9.0-rc6-syzkaller #0 [ 46.469390][ T6833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.479427][ T6833] RIP: 0010:diFree+0xe3/0x25b0 [ 46.484171][ T6833] Code: e8 c2 3a 0a ff 48 8b 03 48 89 84 24 c8 00 00 00 48 8d 58 80 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 9d 3a 0a ff <48> 8b 03 4c 89 6c 24 08 4d 89 ec 49 c1 ec 0c 48 89 44 24 38 48 8d [ 46.503742][ T6833] RSP: 0018:ffffc90001477a60 EFLAGS: 00010246 [ 46.509785][ T6833] RAX: 1ffffffffffffff0 RBX: ffffffffffffff80 RCX: ffff8880a8510240 [ 46.517724][ T6833] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880850804f0 [ 46.525672][ T6833] RBP: ffffc90001477bf8 R08: ffffffff82a8a8ad R09: ffffed1010a1001c [ 46.533612][ T6833] R10: ffffed1010a1001c R11: 0000000000000000 R12: dffffc0000000000 [ 46.541551][ T6833] R13: 0000000000000001 R14: ffff888089068668 R15: 1ffff1101120d0cd [ 46.549493][ T6833] FS: 0000000001797880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 46.558399][ T6833] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.564946][ T6833] CR2: ffffffffffffff80 CR3: 000000009a5be000 CR4: 00000000001506e0 [ 46.572894][ T6833] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 46.580845][ T6833] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 46.588781][ T6833] Call Trace: [ 46.592055][ T6833] ? lock_is_held_type+0xb3/0xe0 [ 46.596960][ T6833] ? lock_is_held_type+0xb3/0xe0 [ 46.601864][ T6833] ? rcu_read_lock_sched_held+0x2f/0xa0 [ 46.607376][ T6833] ? memset+0x1f/0x40 [ 46.611326][ T6833] ? __dquot_initialize+0x1a9/0xc30 [ 46.616490][ T6833] ? do_raw_spin_unlock+0x134/0x8d0 [ 46.621657][ T6833] jfs_evict_inode+0x259/0x2e0 [ 46.626390][ T6833] ? evict+0x2b6/0x6d0 [ 46.630424][ T6833] ? jfs_write_inode+0x1a0/0x1a0 [ 46.635325][ T6833] evict+0x2bb/0x6d0 [ 46.639188][ T6833] jfs_mount+0x2db/0x300 [ 46.643409][ T6833] jfs_fill_super+0x515/0x9b0 [ 46.648065][ T6833] mount_bdev+0x24f/0x360 [ 46.652373][ T6833] ? jfs_do_mount+0x40/0x40 [ 46.656842][ T6833] legacy_get_tree+0xea/0x180 [ 46.661504][ T6833] ? jfs_error+0x220/0x220 [ 46.665900][ T6833] vfs_get_tree+0x88/0x270 [ 46.670294][ T6833] path_mount+0x179d/0x29e0 [ 46.674765][ T6833] __se_sys_mount+0x126/0x180 [ 46.679412][ T6833] do_syscall_64+0x31/0x70 [ 46.683796][ T6833] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.689665][ T6833] RIP: 0033:0x446e0a [ 46.693527][ T6833] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad 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 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 46.713120][ T6833] RSP: 002b:00007fff269df2a8 EFLAGS: 00000283 ORIG_RAX: 00000000000000a5 [ 46.721498][ T6833] RAX: ffffffffffffffda RBX: 00007fff269df300 RCX: 0000000000446e0a [ 46.729457][ T6833] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fff269df2c0 [ 46.737398][ T6833] RBP: 00007fff269df2c0 R08: 00007fff269df300 R09: 0000000000000000 [ 46.745345][ T6833] R10: 0000000000000000 R11: 0000000000000283 R12: 0000000000000002 [ 46.753368][ T6833] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 46.761326][ T6833] Modules linked in: [ 46.765205][ T6833] CR2: ffffffffffffff80 [ 46.769344][ T6833] ---[ end trace e80d4d0fec3809a4 ]--- [ 46.774777][ T6833] RIP: 0010:diFree+0xe3/0x25b0 [ 46.779508][ T6833] Code: e8 c2 3a 0a ff 48 8b 03 48 89 84 24 c8 00 00 00 48 8d 58 80 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 9d 3a 0a ff <48> 8b 03 4c 89 6c 24 08 4d 89 ec 49 c1 ec 0c 48 89 44 24 38 48 8d [ 46.799085][ T6833] RSP: 0018:ffffc90001477a60 EFLAGS: 00010246 [ 46.805132][ T6833] RAX: 1ffffffffffffff0 RBX: ffffffffffffff80 RCX: ffff8880a8510240 [ 46.813088][ T6833] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880850804f0 [ 46.821044][ T6833] RBP: ffffc90001477bf8 R08: ffffffff82a8a8ad R09: ffffed1010a1001c [ 46.828984][ T6833] R10: ffffed1010a1001c R11: 0000000000000000 R12: dffffc0000000000 [ 46.836925][ T6833] R13: 0000000000000001 R14: ffff888089068668 R15: 1ffff1101120d0cd [ 46.844866][ T6833] FS: 0000000001797880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 46.853782][ T6833] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.860348][ T6833] CR2: ffffffffffffff80 CR3: 000000009a5be000 CR4: 00000000001506e0 [ 46.868289][ T6833] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 46.876241][ T6833] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 46.884181][ T6833] Kernel panic - not syncing: Fatal exception [ 46.891286][ T6833] Kernel Offset: disabled [ 46.895597][ T6833] Rebooting in 86400 seconds..