Warning: Permanently added '10.128.0.219' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 29.111135] kasan: CONFIG_KASAN_INLINE enabled [ 29.116199] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.123889] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 29.130379] Modules linked in: [ 29.133558] CPU: 0 PID: 7973 Comm: syz-executor869 Not tainted 4.14.232-syzkaller #0 [ 29.141417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.150749] task: ffff8880ab9144c0 task.stack: ffff8880b4760000 [ 29.156932] RIP: 0010:rb_erase+0x29/0x1290 [ 29.161168] RSP: 0018:ffff8880b4767a68 EFLAGS: 00010292 [ 29.166564] RAX: dffffc0000000000 RBX: ffff88808df8f770 RCX: 1ffff110168ecf27 [ 29.173827] RDX: 0000000000000001 RSI: ffffffff8bf99ea0 RDI: 0000000000000008 [ 29.181076] RBP: 0000000000000000 R08: ffffffff8ba2d17c R09: 0000000000001bd8 [ 29.188339] R10: 0000000000000001 R11: ffff8880ab9144c0 R12: 0000000000000000 [ 29.195613] R13: dffffc0000000000 R14: ffff88808df7a838 R15: ffffffff8bf99ea0 [ 29.202866] FS: 000000000140c300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 [ 29.211070] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.216930] CR2: 00000000200001c4 CR3: 00000000a08cf000 CR4: 00000000001406f0 [ 29.224181] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.231443] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.238693] Call Trace: [ 29.241287] integrity_inode_free+0x119/0x300 [ 29.245760] security_inode_free+0x14/0x80 [ 29.249975] __destroy_inode+0x1e8/0x4d0 [ 29.254102] destroy_inode+0x49/0x110 [ 29.258053] iput+0x458/0x7e0 [ 29.261148] ? ext4_mark_dquot_dirty+0x190/0x190 [ 29.265897] ext4_ioctl+0x16c5/0x3870 [ 29.269681] ? ext4_ioctl_check_immutable+0x1c0/0x1c0 [ 29.274851] ? putname+0xcd/0x110 [ 29.278303] ? do_sys_open+0x203/0x410 [ 29.282188] ? do_syscall_64+0x1d5/0x640 [ 29.286227] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 29.291570] ? path_lookupat+0x780/0x780 [ 29.295608] ? debug_check_no_obj_freed+0x2c0/0x680 [ 29.300706] ? lock_acquire+0x170/0x3f0 [ 29.304983] ? lock_downgrade+0x740/0x740 [ 29.309133] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 29.314216] ? debug_check_no_obj_freed+0x2c0/0x680 [ 29.319214] ? ext4_ioctl_check_immutable+0x1c0/0x1c0 [ 29.324385] do_vfs_ioctl+0x75a/0xff0 [ 29.328166] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 29.333599] ? ioctl_preallocate+0x1a0/0x1a0 [ 29.337986] ? kmem_cache_free+0x23a/0x2b0 [ 29.342196] ? putname+0xcd/0x110 [ 29.345646] ? do_sys_open+0x208/0x410 [ 29.349508] ? filp_open+0x60/0x60 [ 29.353024] ? security_file_ioctl+0x83/0xb0 [ 29.357408] SyS_ioctl+0x7f/0xb0 [ 29.360753] ? do_vfs_ioctl+0xff0/0xff0 [ 29.364706] do_syscall_64+0x1d5/0x640 [ 29.368570] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 29.373738] RIP: 0033:0x43ee69 [ 29.376905] RSP: 002b:00007ffcd3a0aac8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 29.384590] RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043ee69 [ 29.391837] RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000003 [ 29.399093] RBP: 0000000000402e50 R08: 0000000000400488 R09: 0000000000400488 [ 29.406439] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402ee0 [ 29.413700] R13: 0000000000000000 R14: 00000000004ac018 R15: 0000000000400488 [ 29.420948] Code: ff ff 48 b8 00 00 00 00 00 fc ff df 41 57 49 89 f7 41 56 41 55 41 54 49 89 fc 48 83 c7 08 48 89 fa 55 48 c1 ea 03 53 48 83 ec 18 <80> 3c 02 00 0f 85 f2 0c 00 00 49 8d 7c 24 10 4d 8b 74 24 08 48 [ 29.440029] RIP: rb_erase+0x29/0x1290 RSP: ffff8880b4767a68 [ 29.445837] ---[ end trace cae2dc776f685844 ]--- [ 29.450747] Kernel panic - not syncing: Fatal exception [ 29.456916] Kernel Offset: disabled [ 29.460531] Rebooting in 86400 seconds..