[ 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 tty1. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ 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 '10.128.1.91' (ECDSA) to the list of known hosts. syzkaller login: [ 142.523805][ T8223] IPVS: ftp: loaded support on port[0] = 21 [ 142.672609][ T49] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 142.680559][ T49] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 142.690326][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program [ 142.738618][ T373] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 142.746855][ T373] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 142.755514][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 142.783063][ T8262] ===================================================== [ 142.790040][ T8262] BUG: KMSAN: uninit-value in hwsim_cloned_frame_received_nl+0x124f/0x13f0 [ 142.798685][ T8262] CPU: 1 PID: 8262 Comm: syz-executor061 Not tainted 5.12.0-rc6-syzkaller #0 [ 142.807473][ T8262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 142.817602][ T8262] Call Trace: [ 142.820873][ T8262] dump_stack+0x24c/0x2e0 [ 142.825192][ T8262] kmsan_report+0xfb/0x1e0 [ 142.829593][ T8262] __msan_warning+0x5c/0xa0 [ 142.834080][ T8262] hwsim_cloned_frame_received_nl+0x124f/0x13f0 [ 142.840350][ T8262] ? hwsim_register_received_nl+0x740/0x740 [ 142.846269][ T8262] genl_rcv_msg+0x1319/0x1610 [ 142.850935][ T8262] ? hwsim_register_received_nl+0x740/0x740 [ 142.856852][ T8262] ? kmsan_internal_set_origin+0x85/0xc0 [ 142.862477][ T8262] netlink_rcv_skb+0x6fa/0x810 [ 142.867266][ T8262] ? genl_bind+0x4b0/0x4b0 [ 142.871668][ T8262] genl_rcv+0x63/0x80 [ 142.875633][ T8262] netlink_unicast+0x11d6/0x14a0 [ 142.880557][ T8262] ? genl_pernet_exit+0x90/0x90 [ 142.885450][ T8262] netlink_sendmsg+0x1740/0x1840 [ 142.890377][ T8262] ? netlink_getsockopt+0x1830/0x1830 [ 142.895731][ T8262] __sys_sendto+0x9ea/0xc60 [ 142.900271][ T8262] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 142.906324][ T8262] ? kmsan_get_metadata+0x116/0x180 [ 142.911568][ T8262] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 142.917362][ T8262] ? kmsan_get_metadata+0x116/0x180 [ 142.922544][ T8262] __se_sys_sendto+0x107/0x130 [ 142.927297][ T8262] __x64_sys_sendto+0x6e/0x90 [ 142.931958][ T8262] do_syscall_64+0x9f/0x140 [ 142.936487][ T8262] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 142.942364][ T8262] RIP: 0033:0x402d56 [ 142.946238][ T8262] 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 [ 142.965907][ T8262] RSP: 002b:00007ffdc042b758 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 142.974341][ T8262] RAX: ffffffffffffffda RBX: 00007ffdc042b7d0 RCX: 0000000000402d56 [ 142.982309][ T8262] RDX: 0000000000000034 RSI: 00007ffdc042b820 RDI: 0000000000000003 [ 142.990285][ T8262] RBP: 0000000000000001 R08: 00007ffdc042b774 R09: 000000000000000c [ 142.998255][ T8262] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 143.006214][ T8262] R13: 00007ffdc042b820 R14: 0000000000000003 R15: 0000000000000000 [ 143.014176][ T8262] [ 143.016480][ T8262] Uninit was created at: [ 143.020712][ T8262] kmsan_internal_poison_shadow+0x5c/0xf0 [ 143.026441][ T8262] kmsan_slab_alloc+0x8e/0xe0 [ 143.031103][ T8262] __kmalloc_node_track_caller+0xa4f/0x1470 [ 143.036982][ T8262] __alloc_skb+0x4dd/0xe90 [ 143.041385][ T8262] hwsim_cloned_frame_received_nl+0x223/0x13f0 [ 143.047525][ T8262] genl_rcv_msg+0x1319/0x1610 [ 143.052220][ T8262] netlink_rcv_skb+0x6fa/0x810 [ 143.056982][ T8262] genl_rcv+0x63/0x80 [ 143.060962][ T8262] netlink_unicast+0x11d6/0x14a0 [ 143.065884][ T8262] netlink_sendmsg+0x1740/0x1840 [ 143.070812][ T8262] __sys_sendto+0x9ea/0xc60 [ 143.075296][ T8262] __se_sys_sendto+0x107/0x130 [ 143.080044][ T8262] __x64_sys_sendto+0x6e/0x90 [ 143.084703][ T8262] do_syscall_64+0x9f/0x140 [ 143.089193][ T8262] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 143.095077][ T8262] ===================================================== [ 143.101995][ T8262] Disabling lock debugging due to kernel taint [ 143.108152][ T8262] Kernel panic - not syncing: panic_on_kmsan set ... [ 143.114819][ T8262] CPU: 1 PID: 8262 Comm: syz-executor061 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 143.124982][ T8262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 143.135026][ T8262] Call Trace: [ 143.138308][ T8262] dump_stack+0x24c/0x2e0 [ 143.142629][ T8262] panic+0x4c6/0xea7 [ 143.146529][ T8262] ? add_taint+0x17c/0x210 [ 143.150941][ T8262] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 143.157117][ T8262] kmsan_report+0x1de/0x1e0 [ 143.161651][ T8262] __msan_warning+0x5c/0xa0 [ 143.166144][ T8262] hwsim_cloned_frame_received_nl+0x124f/0x13f0 [ 143.172388][ T8262] ? hwsim_register_received_nl+0x740/0x740 [ 143.178315][ T8262] genl_rcv_msg+0x1319/0x1610 [ 143.183002][ T8262] ? hwsim_register_received_nl+0x740/0x740 [ 143.188913][ T8262] ? kmsan_internal_set_origin+0x85/0xc0 [ 143.194553][ T8262] netlink_rcv_skb+0x6fa/0x810 [ 143.199317][ T8262] ? genl_bind+0x4b0/0x4b0 [ 143.203752][ T8262] genl_rcv+0x63/0x80 [ 143.207728][ T8262] netlink_unicast+0x11d6/0x14a0 [ 143.212658][ T8262] ? genl_pernet_exit+0x90/0x90 [ 143.217507][ T8262] netlink_sendmsg+0x1740/0x1840 [ 143.222469][ T8262] ? netlink_getsockopt+0x1830/0x1830 [ 143.227829][ T8262] __sys_sendto+0x9ea/0xc60 [ 143.232332][ T8262] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 143.238425][ T8262] ? kmsan_get_metadata+0x116/0x180 [ 143.243630][ T8262] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 143.249460][ T8262] ? kmsan_get_metadata+0x116/0x180 [ 143.254670][ T8262] __se_sys_sendto+0x107/0x130 [ 143.259437][ T8262] __x64_sys_sendto+0x6e/0x90 [ 143.264116][ T8262] do_syscall_64+0x9f/0x140 [ 143.268623][ T8262] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 143.274528][ T8262] RIP: 0033:0x402d56 [ 143.278419][ T8262] 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 [ 143.298033][ T8262] RSP: 002b:00007ffdc042b758 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 143.306447][ T8262] RAX: ffffffffffffffda RBX: 00007ffdc042b7d0 RCX: 0000000000402d56 [ 143.314422][ T8262] RDX: 0000000000000034 RSI: 00007ffdc042b820 RDI: 0000000000000003 [ 143.322408][ T8262] RBP: 0000000000000001 R08: 00007ffdc042b774 R09: 000000000000000c [ 143.330376][ T8262] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 143.338361][ T8262] R13: 00007ffdc042b820 R14: 0000000000000003 R15: 0000000000000000 [ 143.347206][ T8262] Kernel Offset: disabled [ 143.351556][ T8262] Rebooting in 86400 seconds..