[ 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 '10.128.1.9' (ECDSA) to the list of known hosts. syzkaller login: [ 119.586417][ T8238] IPVS: ftp: loaded support on port[0] = 21 [ 119.678183][ T1241] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 119.686385][ T1241] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 119.695913][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program [ 119.743704][ T1044] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 119.751965][ T1044] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 119.759833][ T1980] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 119.786418][ T8277] ===================================================== [ 119.792680][ T8277] BUG: KMSAN: uninit-value in hwsim_cloned_frame_received_nl+0x124f/0x13f0 [ 119.792680][ T8277] CPU: 1 PID: 8277 Comm: syz-executor401 Not tainted 5.12.0-rc6-syzkaller #0 [ 119.792680][ T8277] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.792680][ T8277] Call Trace: [ 119.792680][ T8277] dump_stack+0x24c/0x2e0 [ 119.792680][ T8277] kmsan_report+0xfb/0x1e0 [ 119.792680][ T8277] __msan_warning+0x5c/0xa0 [ 119.792680][ T8277] hwsim_cloned_frame_received_nl+0x124f/0x13f0 [ 119.792680][ T8277] ? hwsim_register_received_nl+0x740/0x740 [ 119.792680][ T8277] genl_rcv_msg+0x1319/0x1610 [ 119.792680][ T8277] ? hwsim_register_received_nl+0x740/0x740 [ 119.792680][ T8277] ? kmsan_set_origin_checked+0xa2/0x100 [ 119.792680][ T8277] netlink_rcv_skb+0x6fa/0x810 [ 119.792680][ T8277] ? genl_bind+0x4b0/0x4b0 [ 119.792680][ T8277] genl_rcv+0x63/0x80 [ 119.792680][ T8277] netlink_unicast+0x11d6/0x14a0 [ 119.792680][ T8277] ? genl_pernet_exit+0x90/0x90 [ 119.792680][ T8277] netlink_sendmsg+0x1740/0x1840 [ 119.792680][ T8277] ? netlink_getsockopt+0x1830/0x1830 [ 119.792680][ T8277] __sys_sendto+0x9ea/0xc60 [ 119.792680][ T8277] ? kmsan_get_metadata+0x116/0x180 [ 119.792680][ T8277] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 119.792680][ T8277] ? kmsan_get_metadata+0x116/0x180 [ 119.792680][ T8277] __se_sys_sendto+0x107/0x130 [ 119.792680][ T8277] __x64_sys_sendto+0x6e/0x90 [ 119.792680][ T8277] do_syscall_64+0x9f/0x140 [ 119.792680][ T8277] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 119.792680][ T8277] RIP: 0033:0x402d66 [ 119.792680][ T8277] 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 [ 119.792680][ T8277] RSP: 002b:00007ffe431198c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 119.792680][ T8277] RAX: ffffffffffffffda RBX: 00007ffe43119940 RCX: 0000000000402d66 [ 119.792680][ T8277] RDX: 0000000000000034 RSI: 00007ffe43119990 RDI: 0000000000000003 [ 119.792680][ T8277] RBP: 0000000000000001 R08: 00007ffe431198e4 R09: 000000000000000c [ 119.792680][ T8277] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 119.792680][ T8277] R13: 00007ffe43119990 R14: 0000000000000003 R15: 0000000000000000 [ 119.792680][ T8277] [ 119.792680][ T8277] Uninit was created at: [ 119.792680][ T8277] kmsan_internal_poison_shadow+0x66/0xd0 [ 119.792680][ T8277] kmsan_slab_alloc+0x8e/0xe0 [ 119.792680][ T8277] __kmalloc_node_track_caller+0xa4f/0x1470 [ 119.792680][ T8277] __alloc_skb+0x4dd/0xe90 [ 119.792680][ T8277] hwsim_cloned_frame_received_nl+0x223/0x13f0 [ 119.792680][ T8277] genl_rcv_msg+0x1319/0x1610 [ 119.792680][ T8277] netlink_rcv_skb+0x6fa/0x810 [ 119.792680][ T8277] genl_rcv+0x63/0x80 [ 119.792680][ T8277] netlink_unicast+0x11d6/0x14a0 [ 119.792680][ T8277] netlink_sendmsg+0x1740/0x1840 [ 119.792680][ T8277] __sys_sendto+0x9ea/0xc60 [ 119.792680][ T8277] __se_sys_sendto+0x107/0x130 [ 119.792680][ T8277] __x64_sys_sendto+0x6e/0x90 [ 119.792680][ T8277] do_syscall_64+0x9f/0x140 [ 119.792680][ T8277] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 119.792680][ T8277] ===================================================== [ 119.792680][ T8277] Disabling lock debugging due to kernel taint [ 119.792680][ T8277] Kernel panic - not syncing: panic_on_kmsan set ... [ 119.792680][ T8277] CPU: 1 PID: 8277 Comm: syz-executor401 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 119.792680][ T8277] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.792680][ T8277] Call Trace: [ 119.792680][ T8277] dump_stack+0x24c/0x2e0 [ 119.792680][ T8277] panic+0x4c6/0xea7 [ 119.792680][ T8277] ? add_taint+0x17c/0x210 [ 119.792680][ T8277] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 119.792680][ T8277] kmsan_report+0x1de/0x1e0 [ 119.792680][ T8277] __msan_warning+0x5c/0xa0 [ 119.792680][ T8277] hwsim_cloned_frame_received_nl+0x124f/0x13f0 [ 119.792680][ T8277] ? hwsim_register_received_nl+0x740/0x740 [ 119.792680][ T8277] genl_rcv_msg+0x1319/0x1610 [ 119.792680][ T8277] ? hwsim_register_received_nl+0x740/0x740 [ 119.792680][ T8277] ? kmsan_set_origin_checked+0xa2/0x100 [ 119.792680][ T8277] netlink_rcv_skb+0x6fa/0x810 [ 119.792680][ T8277] ? genl_bind+0x4b0/0x4b0 [ 119.792680][ T8277] genl_rcv+0x63/0x80 [ 119.792680][ T8277] netlink_unicast+0x11d6/0x14a0 [ 119.792680][ T8277] ? genl_pernet_exit+0x90/0x90 [ 119.792680][ T8277] netlink_sendmsg+0x1740/0x1840 [ 119.792680][ T8277] ? netlink_getsockopt+0x1830/0x1830 [ 119.792680][ T8277] __sys_sendto+0x9ea/0xc60 [ 119.792680][ T8277] ? kmsan_get_metadata+0x116/0x180 [ 119.792680][ T8277] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 119.792680][ T8277] ? kmsan_get_metadata+0x116/0x180 [ 119.792680][ T8277] __se_sys_sendto+0x107/0x130 [ 119.792680][ T8277] __x64_sys_sendto+0x6e/0x90 [ 119.792680][ T8277] do_syscall_64+0x9f/0x140 [ 119.792680][ T8277] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 119.792680][ T8277] RIP: 0033:0x402d66 [ 119.792680][ T8277] 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 [ 119.792680][ T8277] RSP: 002b:00007ffe431198c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 119.792680][ T8277] RAX: ffffffffffffffda RBX: 00007ffe43119940 RCX: 0000000000402d66 [ 119.792680][ T8277] RDX: 0000000000000034 RSI: 00007ffe43119990 RDI: 0000000000000003 [ 119.792680][ T8277] RBP: 0000000000000001 R08: 00007ffe431198e4 R09: 000000000000000c [ 119.792680][ T8277] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 119.792680][ T8277] R13: 00007ffe43119990 R14: 0000000000000003 R15: 0000000000000000 [ 119.792680][ T8277] Kernel Offset: disabled [ 119.792680][ T8277] Rebooting in 86400 seconds..