[ 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 '10.128.0.96' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 57.818733][ T7017] netlink: 98586 bytes leftover after parsing attributes in process `syz-executor819'. [ 57.828534][ T7017] ------------[ cut here ]------------ [ 57.835066][ T7017] precision 33020 too large [ 57.835420][ T7017] WARNING: CPU: 0 PID: 7017 at lib/vsprintf.c:2471 set_precision+0x13a/0x170 [ 57.849302][ T7017] Kernel panic - not syncing: panic_on_warn set ... [ 57.855886][ T7017] CPU: 0 PID: 7017 Comm: syz-executor819 Not tainted 5.6.0-syzkaller #0 [ 57.864272][ T7017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.874435][ T7017] Call Trace: [ 57.877716][ T7017] dump_stack+0x188/0x20d [ 57.882036][ T7017] ? set_precision+0x50/0x170 [ 57.886713][ T7017] panic+0x2e3/0x75c [ 57.890609][ T7017] ? add_taint.cold+0x16/0x16 [ 57.895276][ T7017] ? __probe_kernel_read+0x188/0x1d0 [ 57.900553][ T7017] ? __warn.cold+0x14/0x35 [ 57.904963][ T7017] ? __warn+0xd5/0x1c8 [ 57.909031][ T7017] ? set_precision+0x13a/0x170 [ 57.913776][ T7017] __warn.cold+0x2f/0x35 [ 57.918020][ T7017] ? set_precision+0x13a/0x170 [ 57.922783][ T7017] report_bug+0x27b/0x2f0 [ 57.927112][ T7017] do_error_trap+0x12b/0x220 [ 57.931698][ T7017] ? set_precision+0x13a/0x170 [ 57.936453][ T7017] do_invalid_op+0x32/0x40 [ 57.941760][ T7017] ? set_precision+0x13a/0x170 [ 57.946523][ T7017] invalid_op+0x23/0x30 [ 57.950675][ T7017] RIP: 0010:set_precision+0x13a/0x170 [ 57.956055][ T7017] Code: b6 df 88 5d 07 5b 5d 41 5c 41 5d e9 90 b8 b2 f9 e8 8b b8 b2 f9 89 de 48 c7 c7 e0 f8 fa 88 c6 05 54 f8 c2 02 01 e8 de 2c 84 f9 <0f> 0b e9 67 ff ff ff be 08 00 00 00 48 89 ef e8 32 cc ef f9 e9 14 [ 57.975659][ T7017] RSP: 0018:ffffc90000f872d8 EFLAGS: 00010286 [ 57.981771][ T7017] RAX: 0000000000000000 RBX: 00000000000080fc RCX: 0000000000000000 [ 57.989725][ T7017] RDX: 0000000000000000 RSI: ffffffff815ca861 RDI: fffff520001f0e4d [ 57.999176][ T7017] RBP: ffffc90000f87368 R08: ffff8880a2e985c0 R09: fffffbfff185618b [ 58.007136][ T7017] R10: fffffbfff185618a R11: ffffffff8c2b0c57 R12: 0000000000000000 [ 58.015196][ T7017] R13: ffffc90000f8736f R14: 0000000000000018 R15: ffffc90000f87400 [ 58.023178][ T7017] ? vprintk_func+0x81/0x17e [ 58.027843][ T7017] ? set_precision+0x13a/0x170 [ 58.032588][ T7017] vsnprintf+0x894/0x14f0 [ 58.036900][ T7017] ? pointer+0x680/0x680 [ 58.041122][ T7017] ? __irq_work_queue_local+0x11d/0x180 [ 58.046668][ T7017] kvasprintf+0x9c/0x150 [ 58.050915][ T7017] ? bust_spinlocks+0xe0/0xe0 [ 58.055683][ T7017] ? vprintk_func+0x81/0x17e [ 58.060268][ T7017] kasprintf+0xbb/0xf0 [ 58.064328][ T7017] ? kvasprintf_const+0x190/0x190 [ 58.069346][ T7017] ? _raw_spin_unlock_irqrestore+0x9b/0xe0 [ 58.075136][ T7017] ? ___ratelimit+0x59/0x573 [ 58.079717][ T7017] ? __nla_validate_parse+0x156/0x1cd0 [ 58.085263][ T7017] hwsim_new_radio_nl+0x8db/0xf60 [ 58.090294][ T7017] ? mac80211_hwsim_new_radio+0x44a0/0x44a0 [ 58.096284][ T7017] ? cap_capable+0x1eb/0x250 [ 58.100869][ T7017] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 58.107201][ T7017] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 58.113701][ T7017] genl_rcv_msg+0x627/0xdf0 [ 58.118210][ T7017] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 58.124535][ T7017] ? mark_held_locks+0xe0/0xe0 [ 58.129277][ T7017] ? __netlink_lookup+0x3b9/0x730 [ 58.134305][ T7017] ? lock_acquire+0x1f2/0x8f0 [ 58.139114][ T7017] ? lock_release+0x800/0x800 [ 58.143866][ T7017] netlink_rcv_skb+0x15a/0x410 [ 58.148758][ T7017] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 58.155100][ T7017] ? netlink_ack+0xa10/0xa10 [ 58.159814][ T7017] genl_rcv+0x24/0x40 [ 58.163781][ T7017] netlink_unicast+0x537/0x740 [ 58.168730][ T7017] ? netlink_attachskb+0x810/0x810 [ 58.173838][ T7017] ? _copy_from_iter_full+0x25c/0x870 [ 58.179232][ T7017] ? __phys_addr_symbol+0x2c/0x70 [ 58.184258][ T7017] ? __check_object_size+0x171/0x437 [ 58.189588][ T7017] netlink_sendmsg+0x882/0xe10 [ 58.194366][ T7017] ? aa_af_perm+0x260/0x260 [ 58.198903][ T7017] ? netlink_unicast+0x740/0x740 [ 58.203833][ T7017] ? netlink_unicast+0x740/0x740 [ 58.208846][ T7017] sock_sendmsg+0xcf/0x120 [ 58.213432][ T7017] ____sys_sendmsg+0x6bf/0x7e0 [ 58.218194][ T7017] ? do_huge_pmd_anonymous_page+0xb65/0x1930 [ 58.224429][ T7017] ? kernel_sendmsg+0x50/0x50 [ 58.229107][ T7017] ? print_usage_bug+0x240/0x240 [ 58.234049][ T7017] ? lock_downgrade+0x840/0x840 [ 58.239024][ T7017] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.244578][ T7017] ___sys_sendmsg+0x100/0x170 [ 58.249245][ T7017] ? lockdep_hardirqs_on+0x463/0x620 [ 58.254689][ T7017] ? sendmsg_copy_msghdr+0x70/0x70 [ 58.259804][ T7017] ? prep_transhuge_page+0xa0/0xa0 [ 58.264914][ T7017] ? pud_val+0x7c/0xf0 [ 58.268988][ T7017] ? pmd_val+0xf0/0xf0 [ 58.273041][ T7017] ? mark_held_locks+0xe0/0xe0 [ 58.277803][ T7017] ? find_held_lock+0x2d/0x110 [ 58.282553][ T7017] ? do_page_fault+0x58b/0x12da [ 58.287400][ T7017] ? apply_to_existing_page_range+0x40/0x40 [ 58.293274][ T7017] ? lock_downgrade+0x840/0x840 [ 58.298126][ T7017] ? __fget_light+0x1ab/0x270 [ 58.303754][ T7017] __sys_sendmsg+0xec/0x1b0 [ 58.308237][ T7017] ? __sys_sendmsg_sock+0xb0/0xb0 [ 58.313258][ T7017] ? mark_held_locks+0x9f/0xe0 [ 58.318008][ T7017] ? trace_hardirqs_off_caller+0x55/0x230 [ 58.323708][ T7017] ? do_syscall_64+0x21/0x7d0 [ 58.328377][ T7017] do_syscall_64+0xf6/0x7d0 [ 58.332897][ T7017] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 58.338767][ T7017] RIP: 0033:0x4401f9 [ 58.342644][ T7017] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 58.362340][ T7017] RSP: 002b:00007fff784ec338 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 58.370744][ T7017] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401f9 [ 58.378715][ T7017] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 58.386686][ T7017] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 58.394651][ T7017] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a80 [ 58.402618][ T7017] R13: 0000000000401b10 R14: 0000000000000000 R15: 0000000000000000 [ 58.412288][ T7017] Kernel Offset: disabled [ 58.416753][ T7017] Rebooting in 86400 seconds..