[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.22' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 44.898554][ T6847] ERROR: (device loop0): xtSearch: XT_GETPAGE: xtree page corrupt [ 44.898554][ T6847] [ 44.908940][ T6847] BUG: unable to handle page fault for address: ffffffffffffff80 [ 44.917155][ T6847] #PF: supervisor read access in kernel mode [ 44.923116][ T6847] #PF: error_code(0x0000) - not-present page [ 44.929180][ T6847] PGD 9690067 P4D 9690067 PUD 9692067 PMD 0 [ 44.935250][ T6847] Oops: 0000 [#1] PREEMPT SMP KASAN [ 44.940586][ T6847] CPU: 1 PID: 6847 Comm: syz-executor394 Not tainted 5.9.0-rc6-syzkaller #0 [ 44.949239][ T6847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.959307][ T6847] RIP: 0010:diFree+0xe3/0x25b0 [ 44.964066][ T6847] Code: e8 b2 39 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 8d 39 0a ff <48> 8b 03 4c 89 6c 24 08 4d 89 ec 49 c1 ec 0c 48 89 44 24 38 48 8d [ 44.983840][ T6847] RSP: 0018:ffffc90001117a60 EFLAGS: 00010246 [ 44.989893][ T6847] RAX: 1ffffffffffffff0 RBX: ffffffffffffff80 RCX: ffff8880a8658340 [ 44.997970][ T6847] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888087f174f0 [ 45.005931][ T6847] RBP: ffffc90001117bf8 R08: ffffffff82a8b8bd R09: ffffed1010fe2e1c [ 45.013893][ T6847] R10: ffffed1010fe2e1c R11: 0000000000000000 R12: dffffc0000000000 [ 45.021852][ T6847] R13: 0000000000000001 R14: ffff888091a0c668 R15: 1ffff110123418cd [ 45.029835][ T6847] FS: 00000000016fe880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 45.038753][ T6847] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.045325][ T6847] CR2: ffffffffffffff80 CR3: 00000000a4d2f000 CR4: 00000000001506e0 [ 45.053272][ T6847] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.061262][ T6847] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.069211][ T6847] Call Trace: [ 45.072524][ T6847] ? lock_is_held_type+0xb3/0xe0 [ 45.077463][ T6847] ? lock_is_held_type+0xb3/0xe0 [ 45.082494][ T6847] ? rcu_read_lock_sched_held+0x2f/0xa0 [ 45.088022][ T6847] ? memset+0x1f/0x40 [ 45.092012][ T6847] ? __dquot_initialize+0x1a9/0xc30 [ 45.097219][ T6847] ? do_raw_spin_unlock+0x134/0x8d0 [ 45.102390][ T6847] jfs_evict_inode+0x259/0x2e0 [ 45.107120][ T6847] ? evict+0x2b6/0x6d0 [ 45.111155][ T6847] ? jfs_write_inode+0x1a0/0x1a0 [ 45.116075][ T6847] evict+0x2bb/0x6d0 [ 45.119951][ T6847] jfs_mount+0x2db/0x300 [ 45.124181][ T6847] jfs_fill_super+0x515/0x9b0 [ 45.128829][ T6847] mount_bdev+0x24f/0x360 [ 45.133128][ T6847] ? jfs_do_mount+0x40/0x40 [ 45.137599][ T6847] legacy_get_tree+0xea/0x180 [ 45.142245][ T6847] ? jfs_error+0x220/0x220 [ 45.146645][ T6847] vfs_get_tree+0x88/0x270 [ 45.151039][ T6847] path_mount+0x179d/0x29e0 [ 45.155525][ T6847] __se_sys_mount+0x126/0x180 [ 45.160172][ T6847] do_syscall_64+0x31/0x70 [ 45.164559][ T6847] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.170419][ T6847] RIP: 0033:0x446dea [ 45.174281][ T6847] 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 [ 45.193870][ T6847] RSP: 002b:00007fff1ed69ad8 EFLAGS: 00000283 ORIG_RAX: 00000000000000a5 [ 45.202250][ T6847] RAX: ffffffffffffffda RBX: 00007fff1ed69b20 RCX: 0000000000446dea [ 45.210191][ T6847] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fff1ed69ae0 [ 45.218393][ T6847] RBP: 00007fff1ed69ae0 R08: 00007fff1ed69b20 R09: 6f6f6c2f7665642f [ 45.226350][ T6847] R10: 0000000000008001 R11: 0000000000000283 R12: 0000000000000004 [ 45.234292][ T6847] R13: 0000000000000003 R14: 0000000000000003 R15: 0000000000000006 [ 45.242235][ T6847] Modules linked in: [ 45.246097][ T6847] CR2: ffffffffffffff80 [ 45.250221][ T6847] ---[ end trace 5dcf01db00d74546 ]--- [ 45.255654][ T6847] RIP: 0010:diFree+0xe3/0x25b0 [ 45.260387][ T6847] Code: e8 b2 39 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 8d 39 0a ff <48> 8b 03 4c 89 6c 24 08 4d 89 ec 49 c1 ec 0c 48 89 44 24 38 48 8d [ 45.279973][ T6847] RSP: 0018:ffffc90001117a60 EFLAGS: 00010246 [ 45.286023][ T6847] RAX: 1ffffffffffffff0 RBX: ffffffffffffff80 RCX: ffff8880a8658340 [ 45.293979][ T6847] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888087f174f0 [ 45.301920][ T6847] RBP: ffffc90001117bf8 R08: ffffffff82a8b8bd R09: ffffed1010fe2e1c [ 45.309862][ T6847] R10: ffffed1010fe2e1c R11: 0000000000000000 R12: dffffc0000000000 [ 45.317807][ T6847] R13: 0000000000000001 R14: ffff888091a0c668 R15: 1ffff110123418cd [ 45.325763][ T6847] FS: 00000000016fe880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 45.334682][ T6847] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.341238][ T6847] CR2: ffffffffffffff80 CR3: 00000000a4d2f000 CR4: 00000000001506e0 [ 45.349201][ T6847] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.357152][ T6847] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.365094][ T6847] Kernel panic - not syncing: Fatal exception [ 45.372341][ T6847] Kernel Offset: disabled [ 45.376652][ T6847] Rebooting in 86400 seconds..