[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 39.973857] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 42.401832] random: sshd: uninitialized urandom read (32 bytes read) [ 42.832821] random: sshd: uninitialized urandom read (32 bytes read) [ 44.087860] random: sshd: uninitialized urandom read (32 bytes read) [ 53.861692] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.12' (ECDSA) to the list of known hosts. [ 59.527832] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 59.655746] netlink: 'syz-executor483': attribute type 9 has an invalid length. [ 59.665319] WARNING: CPU: 0 PID: 4471 at net/wireless/core.c:550 wiphy_register+0x2157/0x31e0 [ 59.674020] Kernel panic - not syncing: panic_on_warn set ... [ 59.674020] [ 59.681426] CPU: 0 PID: 4471 Comm: syz-executor483 Not tainted 4.18.0-rc8+ #33 [ 59.688799] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.698150] Call Trace: [ 59.700762] dump_stack+0x17c/0x1c0 [ 59.704419] panic+0x3c3/0x9a0 [ 59.707630] __warn+0x40f/0x580 [ 59.710932] ? wiphy_register+0x2157/0x31e0 [ 59.715263] report_bug+0x6f2/0x840 [ 59.718929] ? wiphy_register+0x2157/0x31e0 [ 59.723263] ? wiphy_register+0x2157/0x31e0 [ 59.727612] do_error_trap+0x1c0/0x620 [ 59.731535] ? __list_add_valid+0xb8/0x450 [ 59.735794] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 59.741265] do_invalid_op+0x46/0x50 [ 59.745006] invalid_op+0x14/0x20 [ 59.748513] RIP: 0010:wiphy_register+0x2157/0x31e0 [ 59.753462] Code: f0 48 81 c4 50 01 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 fb 4c 5d f9 0f 0b eb c3 e8 f2 4c 5d f9 0f 0b eb ba e8 e9 4c 5d f9 <0f> 0b eb b1 e8 e0 4c 5d f9 0f 0b eb a8 e8 d7 4c 5d f9 0f 0b eb 9f [ 59.772805] RSP: 0018:ffff8801965af288 EFLAGS: 00010293 [ 59.778262] RAX: ffffffff880836d7 RBX: 0000000000000000 RCX: ffff8801916b9d80 [ 59.785577] RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: ffffea000a25acc0 [ 59.792855] RBP: ffff8801965af400 R08: ffffffff7fffffff R09: 0000000000000002 [ 59.800132] R10: ffffffff7fffff00 R11: 0000000000000000 R12: 0000000000000000 [ 59.807399] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 59.814729] ? wiphy_register+0x2157/0x31e0 [ 59.819085] ? wiphy_register+0x2157/0x31e0 [ 59.823438] ? kmsan_internal_unpoison_shadow+0x83/0xe0 [ 59.828828] ? ieee80211_cs_list_valid+0x2c0/0x380 [ 59.833816] ieee80211_register_hw+0x36f9/0x46d0 [ 59.838626] mac80211_hwsim_new_radio+0x2e90/0x4b80 [ 59.843670] hwsim_new_radio_nl+0xa81/0xd90 [ 59.848008] ? hwsim_tx_info_frame_received_nl+0x11d0/0x11d0 [ 59.853811] genl_rcv_msg+0x16b1/0x1840 [ 59.857832] netlink_rcv_skb+0x36e/0x5f0 [ 59.861923] ? genl_unbind+0x350/0x350 [ 59.865813] genl_rcv+0x63/0x80 [ 59.869113] netlink_unicast+0x1492/0x1740 [ 59.873353] ? genl_pernet_exit+0x90/0x90 [ 59.877592] netlink_sendmsg+0x114c/0x1350 [ 59.881867] ___sys_sendmsg+0xe32/0x1250 [ 59.885959] ? netlink_getsockopt+0x11c0/0x11c0 [ 59.890658] ? __fget_light+0x53/0x700 [ 59.894568] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 59.899951] ? __fget_light+0x1f1/0x700 [ 59.903966] __x64_sys_sendmsg+0x32d/0x460 [ 59.908232] ? ___sys_sendmsg+0x1250/0x1250 [ 59.912554] do_syscall_64+0x15b/0x220 [ 59.916450] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 59.921643] RIP: 0033:0x4402c9 [ 59.924830] 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 [ 59.944226] RSP: 002b:00007ffcf6d91608 EFLAGS: 00000213 ORIG_RAX: 000000000000002e [ 59.951950] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402c9 [ 59.959255] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 59.966530] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 59.973802] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401b50 [ 59.981070] R13: 0000000000401be0 R14: 0000000000000000 R15: 0000000000000000 [ 59.988647] Dumping ftrace buffer: [ 59.992190] (ftrace buffer empty) [ 59.995898] Kernel Offset: disabled [ 59.999529] Rebooting in 86400 seconds..