[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.34' (ECDSA) to the list of known hosts. syzkaller login: [ 137.970970][ T8213] IPVS: ftp: loaded support on port[0] = 21 [ 138.099716][ T562] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 138.107855][ T562] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 138.117147][ T2951] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program [ 138.154307][ T562] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 138.162551][ T562] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 138.171615][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 138.207462][ T8252] ===================================================== [ 138.214521][ T8252] BUG: KMSAN: uninit-value in hwsim_cloned_frame_received_nl+0x124f/0x13f0 [ 138.223140][ T8252] CPU: 1 PID: 8252 Comm: syz-executor771 Not tainted 5.12.0-rc6-syzkaller #0 [ 138.231957][ T8252] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 138.242126][ T8252] Call Trace: [ 138.245422][ T8252] dump_stack+0x24c/0x2e0 [ 138.249969][ T8252] kmsan_report+0xfb/0x1e0 [ 138.254586][ T8252] __msan_warning+0x5c/0xa0 [ 138.259107][ T8252] hwsim_cloned_frame_received_nl+0x124f/0x13f0 [ 138.265485][ T8252] ? hwsim_register_received_nl+0x740/0x740 [ 138.271428][ T8252] genl_rcv_msg+0x1319/0x1610 [ 138.276108][ T8252] ? hwsim_register_received_nl+0x740/0x740 [ 138.281994][ T8252] ? kmsan_set_origin_checked+0xa2/0x100 [ 138.287719][ T8252] netlink_rcv_skb+0x6fa/0x810 [ 138.292482][ T8252] ? genl_bind+0x4b0/0x4b0 [ 138.296985][ T8252] genl_rcv+0x63/0x80 [ 138.301215][ T8252] netlink_unicast+0x11d6/0x14a0 [ 138.306162][ T8252] ? genl_pernet_exit+0x90/0x90 [ 138.311060][ T8252] netlink_sendmsg+0x1740/0x1840 [ 138.315996][ T8252] ? netlink_getsockopt+0x1830/0x1830 [ 138.321356][ T8252] __sys_sendto+0x9ea/0xc60 [ 138.325867][ T8252] ? kmsan_get_metadata+0x116/0x180 [ 138.331061][ T8252] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 138.337027][ T8252] ? kmsan_get_metadata+0x116/0x180 [ 138.342313][ T8252] __se_sys_sendto+0x107/0x130 [ 138.347081][ T8252] __x64_sys_sendto+0x6e/0x90 [ 138.351761][ T8252] do_syscall_64+0x9f/0x140 [ 138.356254][ T8252] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 138.362148][ T8252] RIP: 0033:0x402d56 [ 138.366029][ T8252] 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 [ 138.385669][ T8252] RSP: 002b:00007ffce46d0f98 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 138.394073][ T8252] RAX: ffffffffffffffda RBX: 00007ffce46d1010 RCX: 0000000000402d56 [ 138.402032][ T8252] RDX: 0000000000000034 RSI: 00007ffce46d1060 RDI: 0000000000000003 [ 138.409994][ T8252] RBP: 0000000000000001 R08: 00007ffce46d0fb4 R09: 000000000000000c [ 138.417953][ T8252] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 138.425909][ T8252] R13: 00007ffce46d1060 R14: 0000000000000003 R15: 0000000000000000 [ 138.433875][ T8252] [ 138.436283][ T8252] Uninit was created at: [ 138.440500][ T8252] kmsan_internal_poison_shadow+0x66/0xd0 [ 138.446253][ T8252] kmsan_slab_alloc+0x8e/0xe0 [ 138.450940][ T8252] __kmalloc_node_track_caller+0xa4f/0x1470 [ 138.456865][ T8252] __alloc_skb+0x4dd/0xe90 [ 138.461404][ T8252] hwsim_cloned_frame_received_nl+0x223/0x13f0 [ 138.467588][ T8252] genl_rcv_msg+0x1319/0x1610 [ 138.472270][ T8252] netlink_rcv_skb+0x6fa/0x810 [ 138.477037][ T8252] genl_rcv+0x63/0x80 [ 138.481018][ T8252] netlink_unicast+0x11d6/0x14a0 [ 138.485950][ T8252] netlink_sendmsg+0x1740/0x1840 [ 138.490879][ T8252] __sys_sendto+0x9ea/0xc60 [ 138.495602][ T8252] __se_sys_sendto+0x107/0x130 [ 138.500547][ T8252] __x64_sys_sendto+0x6e/0x90 [ 138.505265][ T8252] do_syscall_64+0x9f/0x140 [ 138.509984][ T8252] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 138.515874][ T8252] ===================================================== [ 138.522975][ T8252] Disabling lock debugging due to kernel taint [ 138.529122][ T8252] Kernel panic - not syncing: panic_on_kmsan set ... [ 138.535922][ T8252] CPU: 1 PID: 8252 Comm: syz-executor771 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 138.546287][ T8252] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 138.556365][ T8252] Call Trace: [ 138.559635][ T8252] dump_stack+0x24c/0x2e0 [ 138.563960][ T8252] panic+0x4c6/0xea7 [ 138.567949][ T8252] ? add_taint+0x17c/0x210 [ 138.572352][ T8252] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 138.579621][ T8252] kmsan_report+0x1de/0x1e0 [ 138.584130][ T8252] __msan_warning+0x5c/0xa0 [ 138.588622][ T8252] hwsim_cloned_frame_received_nl+0x124f/0x13f0 [ 138.594900][ T8252] ? hwsim_register_received_nl+0x740/0x740 [ 138.600797][ T8252] genl_rcv_msg+0x1319/0x1610 [ 138.605468][ T8252] ? hwsim_register_received_nl+0x740/0x740 [ 138.611441][ T8252] ? kmsan_set_origin_checked+0xa2/0x100 [ 138.617066][ T8252] netlink_rcv_skb+0x6fa/0x810 [ 138.621965][ T8252] ? genl_bind+0x4b0/0x4b0 [ 138.626392][ T8252] genl_rcv+0x63/0x80 [ 138.630551][ T8252] netlink_unicast+0x11d6/0x14a0 [ 138.635480][ T8252] ? genl_pernet_exit+0x90/0x90 [ 138.640320][ T8252] netlink_sendmsg+0x1740/0x1840 [ 138.645254][ T8252] ? netlink_getsockopt+0x1830/0x1830 [ 138.650613][ T8252] __sys_sendto+0x9ea/0xc60 [ 138.655107][ T8252] ? kmsan_get_metadata+0x116/0x180 [ 138.660291][ T8252] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 138.666107][ T8252] ? kmsan_get_metadata+0x116/0x180 [ 138.671432][ T8252] __se_sys_sendto+0x107/0x130 [ 138.676193][ T8252] __x64_sys_sendto+0x6e/0x90 [ 138.680878][ T8252] do_syscall_64+0x9f/0x140 [ 138.685374][ T8252] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 138.691253][ T8252] RIP: 0033:0x402d56 [ 138.695131][ T8252] 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 [ 138.716754][ T8252] RSP: 002b:00007ffce46d0f98 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 138.725272][ T8252] RAX: ffffffffffffffda RBX: 00007ffce46d1010 RCX: 0000000000402d56 [ 138.733253][ T8252] RDX: 0000000000000034 RSI: 00007ffce46d1060 RDI: 0000000000000003 [ 138.741226][ T8252] RBP: 0000000000000001 R08: 00007ffce46d0fb4 R09: 000000000000000c [ 138.749286][ T8252] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 138.757381][ T8252] R13: 00007ffce46d1060 R14: 0000000000000003 R15: 0000000000000000 [ 138.767136][ T8252] Kernel Offset: disabled [ 138.771802][ T8252] Rebooting in 86400 seconds..