Warning: Permanently added '10.128.1.15' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 61.353268] kauditd_printk_skb: 5 callbacks suppressed [ 61.353282] audit: type=1400 audit(1584950741.199:36): avc: denied { map } for pid=8253 comm="syz-executor602" path="/root/syz-executor602440770" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 61.375080] MINIX-fs: mounting unchecked file system, running fsck is recommended [ 61.396034] ------------[ cut here ]------------ [ 61.396046] audit: type=1400 audit(1584950741.239:37): avc: denied { associate } for pid=8253 comm="syz-executor602" name="file0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 61.423673] WARNING: CPU: 1 PID: 8253 at fs/inode.c:342 inc_nlink.cold+0x11/0x18 [ 61.431202] Kernel panic - not syncing: panic_on_warn set ... [ 61.431202] [ 61.438830] CPU: 1 PID: 8253 Comm: syz-executor602 Not tainted 4.19.112-syzkaller #0 [ 61.446791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.456145] Call Trace: [ 61.458974] dump_stack+0x188/0x20d [ 61.462738] panic+0x26a/0x50e [ 61.465950] ? __warn_printk+0xf3/0xf3 [ 61.470001] ? inc_nlink.cold+0x11/0x18 [ 61.474011] ? __probe_kernel_read+0x16c/0x1b0 [ 61.478783] ? __warn.cold+0x5/0x46 [ 61.482415] ? __warn+0xe4/0x1c0 [ 61.485771] ? inc_nlink.cold+0x11/0x18 [ 61.490691] __warn.cold+0x20/0x46 [ 61.494501] ? inc_nlink.cold+0x11/0x18 [ 61.498536] report_bug+0x262/0x2a0 [ 61.502301] do_error_trap+0x1d7/0x310 [ 61.506329] ? math_error+0x310/0x310 [ 61.510219] ? __irq_work_queue_local+0x101/0x160 [ 61.515079] ? irq_work_queue+0x2b/0x80 [ 61.519444] ? wake_up_klogd+0x8c/0xc0 [ 61.523374] ? trace_hardirqs_off_caller+0x55/0x210 [ 61.528701] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 61.533662] invalid_op+0x14/0x20 [ 61.537333] RIP: 0010:inc_nlink.cold+0x11/0x18 [ 61.542284] Code: cb b9 ff 44 89 e0 5b 5d 41 5c c3 e8 00 92 ef ff eb c3 e8 09 92 ef ff eb 8e e8 82 cb b9 ff 48 c7 c7 80 ce 74 87 e8 6f e8 a4 ff <0f> 0b e9 28 86 ff ff e8 6a cb b9 ff 48 8d 7b 40 b8 ff ff 37 00 48 [ 61.562900] RSP: 0018:ffff88809f4bfd88 EFLAGS: 00010282 [ 61.568728] RAX: 0000000000000024 RBX: ffff888094ba8950 RCX: 0000000000000000 [ 61.576506] RDX: 0000000000000000 RSI: ffffffff8152d3a1 RDI: ffffed1013e97fa3 [ 61.584123] RBP: 0000000000000000 R08: 0000000000000024 R09: ffffed1015ce5079 [ 61.591730] R10: ffffed1015ce5078 R11: ffff8880ae7283c7 R12: ffff888094ba8998 [ 61.599236] R13: ffff88807988e1e0 R14: ffff88807988e238 R15: 0000000000000000 [ 61.607451] ? vprintk_func+0x81/0x17e [ 61.611429] ? inc_nlink.cold+0x11/0x18 [ 61.615416] minix_mkdir+0x71/0x1b0 [ 61.619136] ? minix_create+0x30/0x30 [ 61.623131] ? security_inode_mkdir+0xd9/0x110 [ 61.627839] vfs_mkdir+0x419/0x690 [ 61.632014] do_mkdirat+0x21e/0x280 [ 61.636095] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.640567] ? trace_hardirqs_off_caller+0x55/0x210 [ 61.646062] ? do_syscall_64+0x21/0x620 [ 61.650808] do_syscall_64+0xf9/0x620 [ 61.655096] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 61.660295] RIP: 0033:0x444a69 [ 61.663512] Code: 0d d8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db d7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 61.682806] RSP: 002b:00007fff51001b58 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 [ 61.690523] RAX: ffffffffffffffda RBX: 00007fff51001b60 RCX: 0000000000444a69 [ 61.698496] RDX: 0000000000000050 RSI: 0000000020000040 RDI: 0000000000000003 [ 61.705813] RBP: 0000000000000000 R08: 0000000000400e50 R09: 0000000000400e50 [ 61.713271] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004026d0 [ 61.720531] R13: 0000000000402760 R14: 0000000000000000 R15: 0000000000000000 [ 61.729502] Kernel Offset: disabled [ 61.733212] Rebooting in 86400 seconds..