[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 83.478880][ T28] audit: type=1800 audit(1578519027.060:25): pid=9463 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 83.498750][ T28] audit: type=1800 audit(1578519027.060:26): pid=9463 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 83.532740][ T28] audit: type=1800 audit(1578519027.060:27): pid=9463 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.211' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 95.857967][ T9618] netlink: 179916 bytes leftover after parsing attributes in process `syz-executor273'. [ 95.867947][ T9618] ------------[ cut here ]------------ [ 95.873624][ T9618] precision 33020 too large [ 95.874221][ T9618] WARNING: CPU: 0 PID: 9618 at lib/vsprintf.c:2471 set_precision+0x150/0x180 [ 95.887448][ T9618] Kernel panic - not syncing: panic_on_warn set ... [ 95.894018][ T9618] CPU: 0 PID: 9618 Comm: syz-executor273 Not tainted 5.5.0-rc4-syzkaller #0 [ 95.902690][ T9618] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 95.912739][ T9618] Call Trace: [ 95.916060][ T9618] dump_stack+0x197/0x210 [ 95.920394][ T9618] ? set_precision+0xa0/0x180 [ 95.925382][ T9618] panic+0x2e3/0x75c [ 95.929265][ T9618] ? add_taint.cold+0x16/0x16 [ 95.933928][ T9618] ? __kasan_check_write+0x14/0x20 [ 95.939194][ T9618] ? __warn.cold+0x14/0x3e [ 95.943589][ T9618] ? __warn+0xd9/0x1cf [ 95.947638][ T9618] ? set_precision+0x150/0x180 [ 95.952382][ T9618] __warn.cold+0x2f/0x3e [ 95.956603][ T9618] ? set_precision+0x150/0x180 [ 95.961347][ T9618] report_bug+0x289/0x300 [ 95.965660][ T9618] do_error_trap+0x11b/0x200 [ 95.970243][ T9618] do_invalid_op+0x37/0x50 [ 95.974637][ T9618] ? set_precision+0x150/0x180 [ 95.979393][ T9618] invalid_op+0x23/0x30 [ 95.983543][ T9618] RIP: 0010:set_precision+0x150/0x180 [ 95.988922][ T9618] Code: 24 07 e8 23 30 9f f9 5b 41 5c 41 5d 41 5e 5d c3 e8 15 30 9f f9 89 de 48 c7 c7 60 c1 f7 88 c6 05 64 4b a1 02 01 e8 5f de 6f f9 <0f> 0b e9 60 ff ff ff be 08 00 00 00 4c 89 e7 e8 4c e5 dc f9 e9 04 [ 96.008758][ T9618] RSP: 0018:ffffc90001d87280 EFLAGS: 00010286 [ 96.014832][ T9618] RAX: 0000000000000000 RBX: 00000000000080fc RCX: 0000000000000000 [ 96.022794][ T9618] RDX: 0000000000000000 RSI: ffffffff815e8fc6 RDI: fffff520003b0e42 [ 96.030747][ T9618] RBP: ffffc90001d872a0 R08: ffff88808d0702c0 R09: fffffbfff165f9ab [ 96.038699][ T9618] R10: fffffbfff165f9aa R11: ffffffff8b2fcd57 R12: ffffc90001d87320 [ 96.046665][ T9618] R13: 0000000000000000 R14: ffffc90001d87327 R15: ffffc90001d87360 [ 96.054650][ T9618] ? vprintk_func+0x86/0x189 [ 96.059246][ T9618] vsnprintf+0xa7b/0x19a0 [ 96.063572][ T9618] ? pointer+0x740/0x740 [ 96.067815][ T9618] ? vprintk_default+0x28/0x30 [ 96.072667][ T9618] kvasprintf+0xb2/0x170 [ 96.076911][ T9618] ? bust_spinlocks+0xe0/0xe0 [ 96.081578][ T9618] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 96.087392][ T9618] kasprintf+0xbb/0xf0 [ 96.091496][ T9618] ? kvasprintf_const+0x190/0x190 [ 96.096602][ T9618] ? nla_memcpy+0xb0/0xb0 [ 96.100925][ T9618] hwsim_del_radio_nl+0x63a/0x7e0 [ 96.105938][ T9618] ? __nla_parse+0x43/0x60 [ 96.110355][ T9618] ? mac80211_hwsim_netlink_notify+0xaa0/0xaa0 [ 96.116507][ T9618] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 96.122741][ T9618] ? genl_family_rcv_msg_attrs_parse+0x1c6/0x300 [ 96.129066][ T9618] genl_rcv_msg+0x67d/0xea0 [ 96.133658][ T9618] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 96.139970][ T9618] ? __kasan_check_read+0x11/0x20 [ 96.144979][ T9618] ? __lock_acquire+0x8a0/0x4a00 [ 96.150255][ T9618] ? find_held_lock+0x35/0x130 [ 96.155014][ T9618] netlink_rcv_skb+0x177/0x450 [ 96.159767][ T9618] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 96.166424][ T9618] ? netlink_ack+0xb50/0xb50 [ 96.170990][ T9618] ? __kasan_check_write+0x14/0x20 [ 96.176096][ T9618] ? netlink_deliver_tap+0x24a/0xbe0 [ 96.181382][ T9618] genl_rcv+0x29/0x40 [ 96.185350][ T9618] netlink_unicast+0x58c/0x7d0 [ 96.190124][ T9618] ? netlink_attachskb+0x870/0x870 [ 96.195257][ T9618] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 96.200961][ T9618] ? __check_object_size+0x3d/0x437 [ 96.206155][ T9618] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 96.211901][ T9618] netlink_sendmsg+0x91c/0xea0 [ 96.216653][ T9618] ? netlink_unicast+0x7d0/0x7d0 [ 96.221571][ T9618] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 96.227103][ T9618] ? apparmor_socket_sendmsg+0x2a/0x30 [ 96.232564][ T9618] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 96.238816][ T9618] ? security_socket_sendmsg+0x8d/0xc0 [ 96.244263][ T9618] ? netlink_unicast+0x7d0/0x7d0 [ 96.249181][ T9618] sock_sendmsg+0xd7/0x130 [ 96.253579][ T9618] ____sys_sendmsg+0x753/0x880 [ 96.258324][ T9618] ? kernel_sendmsg+0x50/0x50 [ 96.263003][ T9618] ? mark_held_locks+0xa4/0xf0 [ 96.267744][ T9618] ? do_huge_pmd_anonymous_page+0x1463/0x1a50 [ 96.273786][ T9618] ? __handle_mm_fault+0x3145/0x3cc0 [ 96.279046][ T9618] ? do_huge_pmd_anonymous_page+0x1463/0x1a50 [ 96.285120][ T9618] ___sys_sendmsg+0x100/0x170 [ 96.289785][ T9618] ? do_huge_pmd_anonymous_page+0xceb/0x1a50 [ 96.295751][ T9618] ? sendmsg_copy_msghdr+0x70/0x70 [ 96.300853][ T9618] ? __do_page_fault+0x56a/0xd80 [ 96.305788][ T9618] ? find_held_lock+0x35/0x130 [ 96.310539][ T9618] ? __do_page_fault+0x56a/0xd80 [ 96.315480][ T9618] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 96.321706][ T9618] ? __fget_light+0x1a9/0x230 [ 96.326367][ T9618] ? __fdget+0x1b/0x20 [ 96.330416][ T9618] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 96.336672][ T9618] __sys_sendmsg+0x105/0x1d0 [ 96.341247][ T9618] ? __sys_sendmsg_sock+0xc0/0xc0 [ 96.346265][ T9618] ? down_read_non_owner+0x490/0x490 [ 96.351535][ T9618] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 96.356976][ T9618] ? do_syscall_64+0x26/0x790 [ 96.361631][ T9618] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 96.367693][ T9618] ? do_syscall_64+0x26/0x790 [ 96.372353][ T9618] __x64_sys_sendmsg+0x78/0xb0 [ 96.377109][ T9618] do_syscall_64+0xfa/0x790 [ 96.381608][ T9618] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 96.387490][ T9618] RIP: 0033:0x4401f9 [ 96.391376][ T9618] 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 [ 96.410974][ T9618] RSP: 002b:00007ffe53b2d788 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 96.419368][ T9618] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401f9 [ 96.427317][ T9618] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 96.435280][ T9618] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 96.443235][ T9618] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a80 [ 96.451199][ T9618] R13: 0000000000401b10 R14: 0000000000000000 R15: 0000000000000000 [ 96.460760][ T9618] Kernel Offset: disabled [ 96.465157][ T9618] Rebooting in 86400 seconds..