Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.1' (ECDSA) to the list of known hosts. syzkaller login: [ 134.614676][ T996] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 134.622632][ T996] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 134.643212][ T220] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 134.671161][ T153] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 134.679185][ T153] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 134.687476][ T67] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 134.727460][ T6401] ===================================================== [ 134.734473][ T6401] BUG: KMSAN: uninit-value in hwsim_cloned_frame_received_nl+0x132f/0x1480 [ 134.743167][ T6401] hwsim_cloned_frame_received_nl+0x132f/0x1480 [ 134.749440][ T6401] genl_rcv_msg+0x157f/0x1660 [ 134.754132][ T6401] netlink_rcv_skb+0x447/0x800 [ 134.759016][ T6401] genl_rcv+0x63/0x80 [ 134.763006][ T6401] netlink_unicast+0x107b/0x1350 [ 134.767957][ T6401] netlink_sendmsg+0x1717/0x18a0 [ 134.772908][ T6401] __sys_sendto+0x9ef/0xc70 [ 134.777424][ T6401] __x64_sys_sendto+0x19c/0x210 [ 134.782288][ T6401] do_syscall_64+0x54/0xd0 [ 134.786713][ T6401] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 134.792626][ T6401] [ 134.794945][ T6401] Uninit was created at: [ 134.799213][ T6401] __kmalloc_node_track_caller+0x8d2/0x1340 [ 134.805123][ T6401] __alloc_skb+0x4db/0xe40 [ 134.809552][ T6401] hwsim_cloned_frame_received_nl+0x219/0x1480 [ 134.815726][ T6401] genl_rcv_msg+0x157f/0x1660 [ 134.820413][ T6401] netlink_rcv_skb+0x447/0x800 [ 134.825196][ T6401] genl_rcv+0x63/0x80 [ 134.829190][ T6401] netlink_unicast+0x107b/0x1350 [ 134.834321][ T6401] netlink_sendmsg+0x1717/0x18a0 [ 134.839277][ T6401] __sys_sendto+0x9ef/0xc70 [ 134.843881][ T6401] __x64_sys_sendto+0x19c/0x210 [ 134.848745][ T6401] do_syscall_64+0x54/0xd0 [ 134.853173][ T6401] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 134.859086][ T6401] ===================================================== [ 134.866010][ T6401] Disabling lock debugging due to kernel taint [ 134.873129][ T6401] Kernel panic - not syncing: panic_on_kmsan set ... [ 134.879806][ T6401] CPU: 0 PID: 6401 Comm: syz-executor481 Tainted: G B 5.15.0-rc2-syzkaller #0 [ 134.889966][ T6401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 134.900024][ T6401] Call Trace: [ 134.903303][ T6401] dump_stack_lvl+0x1ff/0x28e [ 134.908003][ T6401] dump_stack+0x25/0x28 [ 134.912184][ T6401] panic+0x44f/0xdeb [ 134.916102][ T6401] ? add_taint+0x187/0x210 [ 134.920620][ T6401] ? add_taint+0x187/0x210 [ 134.925147][ T6401] kmsan_report+0x2ee/0x300 [ 134.929675][ T6401] ? __msan_warning+0xa9/0xf0 [ 134.934367][ T6401] ? hwsim_cloned_frame_received_nl+0x132f/0x1480 [ 134.940801][ T6401] ? genl_rcv_msg+0x157f/0x1660 [ 134.945664][ T6401] ? netlink_rcv_skb+0x447/0x800 [ 134.950618][ T6401] ? genl_rcv+0x63/0x80 [ 134.954795][ T6401] ? netlink_unicast+0x107b/0x1350 [ 134.959920][ T6401] ? netlink_sendmsg+0x1717/0x18a0 [ 134.965064][ T6401] ? __sys_sendto+0x9ef/0xc70 [ 134.969755][ T6401] ? __x64_sys_sendto+0x19c/0x210 [ 134.974805][ T6401] ? do_syscall_64+0x54/0xd0 [ 134.979404][ T6401] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 134.985503][ T6401] ? kmsan_internal_set_shadow_origin+0x52/0xc0 [ 134.991762][ T6401] __msan_warning+0xa9/0xf0 [ 134.996257][ T6401] hwsim_cloned_frame_received_nl+0x132f/0x1480 [ 135.002512][ T6401] ? hwsim_register_received_nl+0x760/0x760 [ 135.008390][ T6401] genl_rcv_msg+0x157f/0x1660 [ 135.013053][ T6401] ? hwsim_register_received_nl+0x760/0x760 [ 135.018936][ T6401] ? kmsan_get_metadata+0x11b/0x180 [ 135.024125][ T6401] netlink_rcv_skb+0x447/0x800 [ 135.028878][ T6401] ? genl_bind+0x540/0x540 [ 135.033277][ T6401] genl_rcv+0x63/0x80 [ 135.037242][ T6401] ? genl_pernet_exit+0x90/0x90 [ 135.042076][ T6401] netlink_unicast+0x107b/0x1350 [ 135.047151][ T6401] netlink_sendmsg+0x1717/0x18a0 [ 135.052078][ T6401] ? netlink_getsockopt+0x11d0/0x11d0 [ 135.057438][ T6401] __sys_sendto+0x9ef/0xc70 [ 135.061929][ T6401] ? kmsan_get_metadata+0x11b/0x180 [ 135.067116][ T6401] ? kmsan_internal_set_shadow_origin+0x52/0xc0 [ 135.073449][ T6401] ? kmsan_get_metadata+0x11b/0x180 [ 135.078648][ T6401] __x64_sys_sendto+0x19c/0x210 [ 135.083494][ T6401] do_syscall_64+0x54/0xd0 [ 135.087914][ T6401] ? exc_page_fault+0x76/0x120 [ 135.092667][ T6401] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 135.098579][ T6401] RIP: 0033:0x7fc8ba464ee6 [ 135.103000][ T6401] Code: 48 c7 c0 ff ff ff ff eb b7 66 2e 0f 1f 84 00 00 00 00 00 90 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 11 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 72 c3 90 55 48 83 ec 30 44 89 4c 24 2c 4c 89 [ 135.122601][ T6401] RSP: 002b:00007ffda48c7f58 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 135.130998][ T6401] RAX: ffffffffffffffda RBX: 00007ffda48c7fd0 RCX: 00007fc8ba464ee6 [ 135.138951][ T6401] RDX: 0000000000000034 RSI: 00007ffda48c8020 RDI: 0000000000000003 [ 135.146907][ T6401] RBP: 0000000000000001 R08: 00007ffda48c7f74 R09: 000000000000000c [ 135.154862][ T6401] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 135.162834][ T6401] R13: 00007ffda48c8020 R14: 0000000000000003 R15: 0000000000000000 [ 135.171060][ T6401] Kernel Offset: disabled [ 135.175370][ T6401] Rebooting in 86400 seconds..