[ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.12' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 69.298746][ T8390] divide error: 0000 [#1] PREEMPT SMP KASAN [ 69.304783][ T8390] CPU: 1 PID: 8390 Comm: syz-executor188 Not tainted 5.12.0-rc4-syzkaller #0 [ 69.313531][ T8390] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.323653][ T8390] RIP: 0010:nft_limit_init+0x2a2/0x5e0 [ 69.329117][ T8390] Code: ef 4c 01 eb 41 0f 92 c7 48 89 de e8 38 a5 22 fa 4d 85 ff 0f 85 97 02 00 00 e8 ea 9e 22 fa 4c 0f af f3 45 89 ed 31 d2 4c 89 f0 <49> f7 f5 49 89 c6 e8 d3 9e 22 fa 48 8d 7d 48 48 b8 00 00 00 00 00 [ 69.348706][ T8390] RSP: 0018:ffffc90009447198 EFLAGS: 00010246 [ 69.354754][ T8390] RAX: 0000000000000000 RBX: 0000200000000000 RCX: 0000000000000000 [ 69.362703][ T8390] RDX: 0000000000000000 RSI: ffffffff875152e6 RDI: 0000000000000003 [ 69.370657][ T8390] RBP: ffff888020f80908 R08: 0000200000000000 R09: 0000000000000000 [ 69.378607][ T8390] R10: ffffffff875152d8 R11: 0000000000000000 R12: ffffc90009447270 [ 69.386558][ T8390] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 69.394507][ T8390] FS: 000000000097a300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 69.403424][ T8390] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.410009][ T8390] CR2: 00000000200001c4 CR3: 0000000026a52000 CR4: 00000000001506e0 [ 69.417962][ T8390] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.425911][ T8390] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.433869][ T8390] Call Trace: [ 69.437144][ T8390] ? nft_limit_pkts_dump+0x20/0x20 [ 69.442249][ T8390] ? rcu_read_lock_sched_held+0x3a/0x70 [ 69.447829][ T8390] ? nft_limit_obj_pkts_init+0xe0/0xe0 [ 69.453272][ T8390] nft_expr_init+0x145/0x2d0 [ 69.457846][ T8390] ? nf_tables_getflowtable+0x5b0/0x5b0 [ 69.463373][ T8390] ? lockdep_hardirqs_on+0x79/0x100 [ 69.468565][ T8390] ? slab_free_freelist_hook+0x92/0x210 [ 69.474095][ T8390] ? kfree+0xe5/0x7f0 [ 69.478056][ T8390] nft_set_elem_expr_alloc+0x27/0x280 [ 69.483518][ T8390] ? nft_rhash_obj+0x60/0x60 [ 69.488096][ T8390] nf_tables_newset+0x1997/0x3150 [ 69.493159][ T8390] ? __nla_validate_parse+0x2df/0x2410 [ 69.498639][ T8390] ? nft_set_elem_expr_alloc+0x280/0x280 [ 69.504255][ T8390] ? __sanitizer_cov_trace_cmp4+0x68/0x70 [ 69.509970][ T8390] ? nla_get_range_signed+0x520/0x520 [ 69.515430][ T8390] ? __nla_parse+0x3d/0x50 [ 69.519848][ T8390] ? nft_set_elem_expr_alloc+0x280/0x280 [ 69.525507][ T8390] nfnetlink_rcv_batch+0x85a/0x21b0 [ 69.530710][ T8390] ? nfnetlink_bind+0x300/0x300 [ 69.535546][ T8390] ? nla_get_range_signed+0x520/0x520 [ 69.540909][ T8390] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.547142][ T8390] ? apparmor_capable+0x1d8/0x460 [ 69.552179][ T8390] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.558401][ T8390] ? security_capable+0x8f/0xc0 [ 69.563247][ T8390] ? __nla_parse+0x3d/0x50 [ 69.567643][ T8390] nfnetlink_rcv+0x3af/0x420 [ 69.572238][ T8390] ? nfnetlink_rcv_batch+0x21b0/0x21b0 [ 69.577678][ T8390] netlink_unicast+0x533/0x7d0 [ 69.582436][ T8390] ? netlink_attachskb+0x870/0x870 [ 69.587527][ T8390] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 69.593748][ T8390] ? __phys_addr_symbol+0x2c/0x70 [ 69.598766][ T8390] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 69.604476][ T8390] ? __check_object_size+0x171/0x3f0 [ 69.609764][ T8390] netlink_sendmsg+0x856/0xd90 [ 69.614560][ T8390] ? netlink_unicast+0x7d0/0x7d0 [ 69.619493][ T8390] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.625719][ T8390] ? netlink_unicast+0x7d0/0x7d0 [ 69.630641][ T8390] sock_sendmsg+0xcf/0x120 [ 69.635043][ T8390] ____sys_sendmsg+0x6e8/0x810 [ 69.639790][ T8390] ? kernel_sendmsg+0x50/0x50 [ 69.644556][ T8390] ? do_recvmmsg+0x6d0/0x6d0 [ 69.649133][ T8390] ? do_huge_pmd_anonymous_page+0x124b/0x2570 [ 69.655182][ T8390] ? lock_downgrade+0x6e0/0x6e0 [ 69.660018][ T8390] ___sys_sendmsg+0xf3/0x170 [ 69.664588][ T8390] ? sendmsg_copy_msghdr+0x160/0x160 [ 69.669851][ T8390] ? __lock_acquire+0x16b3/0x54c0 [ 69.674858][ T8390] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 69.681689][ T8390] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.687914][ T8390] ? __fget_light+0x215/0x280 [ 69.692595][ T8390] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 69.698819][ T8390] __sys_sendmsg+0xe5/0x1b0 [ 69.703302][ T8390] ? __sys_sendmsg_sock+0x30/0x30 [ 69.708308][ T8390] ? syscall_enter_from_user_mode+0x27/0x70 [ 69.714197][ T8390] do_syscall_64+0x2d/0x70 [ 69.718613][ T8390] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 69.724584][ T8390] RIP: 0033:0x43f289 [ 69.728472][ T8390] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 69.748067][ T8390] RSP: 002b:00007fff1cc4cb88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 69.756476][ T8390] RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043f289 [ 69.764427][ T8390] RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 [ 69.772378][ T8390] RBP: 0000000000403270 R08: 0000000000000024 R09: 0000000000400488 [ 69.780326][ T8390] R10: 0000000000000074 R11: 0000000000000246 R12: 0000000000403300 [ 69.788275][ T8390] R13: 0000000000000000 R14: 00000000004ad018 R15: 0000000000400488 [ 69.796244][ T8390] Modules linked in: [ 69.801906][ T8390] ---[ end trace c8d793791c07284c ]--- [ 69.808084][ T8390] RIP: 0010:nft_limit_init+0x2a2/0x5e0 [ 69.813571][ T8390] Code: ef 4c 01 eb 41 0f 92 c7 48 89 de e8 38 a5 22 fa 4d 85 ff 0f 85 97 02 00 00 e8 ea 9e 22 fa 4c 0f af f3 45 89 ed 31 d2 4c 89 f0 <49> f7 f5 49 89 c6 e8 d3 9e 22 fa 48 8d 7d 48 48 b8 00 00 00 00 00 [ 69.833683][ T8390] RSP: 0018:ffffc90009447198 EFLAGS: 00010246 [ 69.839821][ T8390] RAX: 0000000000000000 RBX: 0000200000000000 RCX: 0000000000000000 [ 69.847833][ T8390] RDX: 0000000000000000 RSI: ffffffff875152e6 RDI: 0000000000000003 [ 69.855828][ T8390] RBP: ffff888020f80908 R08: 0000200000000000 R09: 0000000000000000 [ 69.863798][ T8390] R10: ffffffff875152d8 R11: 0000000000000000 R12: ffffc90009447270 [ 69.871789][ T8390] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 69.880059][ T8390] FS: 000000000097a300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 69.889044][ T8390] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.895731][ T8390] CR2: 00007f29fc03d128 CR3: 0000000026a52000 CR4: 00000000001506f0 [ 69.903712][ T8390] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.911697][ T8390] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.920064][ T8390] Kernel panic - not syncing: Fatal exception [ 69.926723][ T8390] Kernel Offset: disabled [ 69.931038][ T8390] Rebooting in 86400 seconds..