[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 13.389164] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 17.271686] random: sshd: uninitialized urandom read (32 bytes read) [ 17.546125] random: sshd: uninitialized urandom read (32 bytes read) [ 18.384298] random: sshd: uninitialized urandom read (32 bytes read) [ 18.529078] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.9' (ECDSA) to the list of known hosts. [ 24.015375] random: sshd: uninitialized urandom read (32 bytes read) 2018/06/27 05:13:34 parsed 1 programs [ 25.276275] random: cc1: uninitialized urandom read (8 bytes read) 2018/06/27 05:13:35 executed programs: 0 [ 26.110250] IPVS: Creating netns size=2536 id=1 [ 26.145202] IPVS: Creating netns size=2536 id=2 [ 26.180079] IPVS: Creating netns size=2536 id=3 [ 26.208186] IPVS: Creating netns size=2536 id=4 [ 26.237007] IPVS: Creating netns size=2536 id=5 [ 26.289303] IPVS: Creating netns size=2536 id=6 [ 26.335583] IPVS: Creating netns size=2536 id=7 [ 26.393470] IPVS: Creating netns size=2536 id=8 [ 26.515280] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 26.555277] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 26.597476] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 26.624027] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 26.692331] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 26.731028] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 26.794568] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 26.810994] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 26.838657] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 26.862439] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 26.870149] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 26.894551] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 26.906178] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 26.931668] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 26.961049] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 26.972325] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 26.986225] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 27.000700] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 27.023422] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 27.055632] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 27.064948] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 27.075226] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 27.103917] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 27.117272] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 27.140235] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 27.149025] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 27.166246] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 27.186603] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 27.200692] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 27.208660] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 27.236139] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 27.244665] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 27.253115] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 27.276447] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 27.287558] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 27.302984] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 27.323838] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 27.343093] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 27.380654] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 27.416636] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 27.435454] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 27.450599] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 27.466613] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 27.484494] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 27.495746] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 27.503319] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.511281] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 27.521547] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 27.531781] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 27.540028] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.547562] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 27.556222] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 27.564647] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 27.572294] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 27.579891] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 27.591064] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 27.599127] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.606650] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 27.614470] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.622076] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 27.634868] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 27.644621] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 27.652038] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 27.660718] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.669000] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 27.676635] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.684284] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 27.703074] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 27.711574] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 27.720341] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.729826] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 27.744129] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 27.754050] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 27.762751] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.771079] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 27.778870] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.786373] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 27.803232] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 27.817050] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.827175] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 27.837574] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 27.882701] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 27.923971] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 27.934172] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.944174] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 27.963944] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 27.976978] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.986858] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 29.046608] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 29.175175] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 29.188782] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 29.195576] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.303298] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 29.451661] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 29.458068] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 29.464795] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.544383] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 29.557247] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 29.587618] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 29.632755] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 29.664864] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 29.683029] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 29.694131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 29.703693] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.717125] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 29.726990] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 29.738839] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.764189] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 29.777895] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 29.784689] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.817361] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 29.823693] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 29.831263] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.848154] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 29.855075] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 29.866601] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 29.873693] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.989911] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 29.996084] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 30.007107] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 30.230447] ------------[ cut here ]------------ [ 30.235327] WARNING: CPU: 1 PID: 5729 at lib/vsprintf.c:1941 set_precision+0x144/0x170 [ 30.243380] precision 64770 too large[ 30.247005] Kernel panic - not syncing: panic_on_warn set ... [ 30.247005] [ 30.254390] CPU: 1 PID: 5729 Comm: syz-executor5 Not tainted 4.9.110-g00a0bcb #56 [ 30.262002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.271364] ffff8801d7fb76e0 ffffffff81eb2329 ffffffff83c48960 00000000ffffffff [ 30.279424] 0000000000000000 0000000000000001 0000000000000795 ffff8801d7fb77a0 [ 30.287471] ffffffff81421925 0000000041b58ab3 ffffffff843ba880 ffffffff81421766 [ 30.295510] Call Trace: [ 30.298091] [] dump_stack+0xc1/0x128 [ 30.303481] [] panic+0x1bf/0x3bc [ 30.308512] [] ? add_taint.cold.6+0x16/0x16 [ 30.314487] [] ? __warn.cold.9+0xa6/0x17f [ 30.320290] [] ? set_precision+0x144/0x170 [ 30.326200] [] __warn.cold.9+0xc1/0x17f [ 30.331829] [] ? unwind_next_frame+0x86/0xe0 [ 30.337884] [] warn_slowpath_fmt+0xc2/0x100 [ 30.343857] [] ? __warn+0x50/0x50 [ 30.348961] [] ? format_decode+0x1b1/0x9e0 [ 30.354840] [] ? set_precision+0x170/0x170 [ 30.360723] [] set_precision+0x144/0x170 [ 30.366450] [] vsnprintf+0x31e/0x1840 [ 30.371875] [] ? pointer+0xb00/0xb00 [ 30.377210] [] vscnprintf+0x2d/0x60 [ 30.382471] [] vprintk_emit+0xf4/0x790 [ 30.387992] [] vprintk+0x28/0x30 [ 30.392983] [] vprintk_default+0x1d/0x30 [ 30.398673] [] printk+0xaf/0xd7 [ 30.403576] [] ? log_wakeup_reason.cold.1+0x13f/0x13f [ 30.410392] [] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 30.417306] [] ? ___ratelimit+0x53/0x401 [ 30.423005] [] dns_resolver_preparse.cold.3+0x71/0x240 [ 30.429917] [] ? dns_resolver_free_preparse+0x40/0x40 [ 30.436731] [] ? dns_resolver_free_preparse+0x40/0x40 [ 30.443558] [] key_create_or_update+0x35b/0xac0 [ 30.449852] [] ? key_type_lookup+0xd0/0xd0 [ 30.455728] [] ? lookup_user_key+0x10f/0xd10 [ 30.461763] [] ? __check_object_size+0x248/0x38e [ 30.468145] [] SyS_add_key+0x1b4/0x390 [ 30.473661] [] ? key_get_type_from_user.constprop.9+0xe0/0xe0 [ 30.481186] [] ? do_syscall_64+0x48/0x490 [ 30.486975] [] ? key_get_type_from_user.constprop.9+0xe0/0xe0 [ 30.494503] [] do_syscall_64+0x1a6/0x490 [ 30.500190] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 30.507562] Dumping ftrace buffer: [ 30.511087] (ftrace buffer empty) [ 30.514781] Kernel Offset: disabled [ 30.518390] Rebooting in 86400 seconds..