[ 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 '10.128.0.110' (ECDSA) to the list of known hosts. syzkaller login: [ 136.982040][ T8208] IPVS: ftp: loaded support on port[0] = 21 [ 137.083531][ T400] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 137.091619][ T400] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 137.099491][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program [ 137.168435][ T400] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 137.176661][ T400] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 137.186251][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 137.217877][ T8247] ===================================================== [ 137.225032][ T8247] BUG: KMSAN: uninit-value in hwsim_cloned_frame_received_nl+0x124f/0x13f0 [ 137.233677][ T8247] CPU: 0 PID: 8247 Comm: syz-executor492 Not tainted 5.12.0-rc6-syzkaller #0 [ 137.242501][ T8247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 137.252575][ T8247] Call Trace: [ 137.255865][ T8247] dump_stack+0x24c/0x2e0 [ 137.260213][ T8247] kmsan_report+0xfb/0x1e0 [ 137.264968][ T8247] __msan_warning+0x5c/0xa0 [ 137.269713][ T8247] hwsim_cloned_frame_received_nl+0x124f/0x13f0 [ 137.275972][ T8247] ? hwsim_register_received_nl+0x740/0x740 [ 137.281864][ T8247] genl_rcv_msg+0x1319/0x1610 [ 137.286538][ T8247] ? hwsim_register_received_nl+0x740/0x740 [ 137.292425][ T8247] ? kmsan_set_origin_checked+0xa2/0x100 [ 137.298048][ T8247] netlink_rcv_skb+0x6fa/0x810 [ 137.302802][ T8247] ? genl_bind+0x4b0/0x4b0 [ 137.307207][ T8247] genl_rcv+0x63/0x80 [ 137.311189][ T8247] netlink_unicast+0x11d6/0x14a0 [ 137.316261][ T8247] ? genl_pernet_exit+0x90/0x90 [ 137.321132][ T8247] netlink_sendmsg+0x1740/0x1840 [ 137.326081][ T8247] ? netlink_getsockopt+0x1830/0x1830 [ 137.331447][ T8247] __sys_sendto+0x9ea/0xc60 [ 137.335979][ T8247] ? kmsan_internal_unpoison_shadow+0x2f/0x40 [ 137.342034][ T8247] ? kmsan_get_metadata+0x116/0x180 [ 137.347230][ T8247] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 137.353021][ T8247] ? kmsan_get_metadata+0x116/0x180 [ 137.358222][ T8247] __se_sys_sendto+0x107/0x130 [ 137.362972][ T8247] __x64_sys_sendto+0x6e/0x90 [ 137.367633][ T8247] do_syscall_64+0x9f/0x140 [ 137.372119][ T8247] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 137.377995][ T8247] RIP: 0033:0x402d66 [ 137.381886][ T8247] 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 [ 137.401563][ T8247] RSP: 002b:00007ffe1b612e08 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 137.409960][ T8247] RAX: ffffffffffffffda RBX: 00007ffe1b612e80 RCX: 0000000000402d66 [ 137.417911][ T8247] RDX: 0000000000000034 RSI: 00007ffe1b612ed0 RDI: 0000000000000003 [ 137.425879][ T8247] RBP: 0000000000000001 R08: 00007ffe1b612e24 R09: 000000000000000c [ 137.433835][ T8247] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 137.441794][ T8247] R13: 00007ffe1b612ed0 R14: 0000000000000003 R15: 0000000000000000 [ 137.449761][ T8247] [ 137.452081][ T8247] Uninit was created at: [ 137.456296][ T8247] kmsan_internal_poison_shadow+0x66/0xd0 [ 137.462034][ T8247] kmsan_slab_alloc+0x8e/0xe0 [ 137.466817][ T8247] __kmalloc_node_track_caller+0xa4f/0x1470 [ 137.472787][ T8247] __alloc_skb+0x4dd/0xe90 [ 137.477274][ T8247] hwsim_cloned_frame_received_nl+0x223/0x13f0 [ 137.483430][ T8247] genl_rcv_msg+0x1319/0x1610 [ 137.488107][ T8247] netlink_rcv_skb+0x6fa/0x810 [ 137.492860][ T8247] genl_rcv+0x63/0x80 [ 137.496846][ T8247] netlink_unicast+0x11d6/0x14a0 [ 137.501767][ T8247] netlink_sendmsg+0x1740/0x1840 [ 137.506859][ T8247] __sys_sendto+0x9ea/0xc60 [ 137.511373][ T8247] __se_sys_sendto+0x107/0x130 [ 137.516162][ T8247] __x64_sys_sendto+0x6e/0x90 [ 137.520822][ T8247] do_syscall_64+0x9f/0x140 [ 137.525310][ T8247] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 137.531187][ T8247] ===================================================== [ 137.538097][ T8247] Disabling lock debugging due to kernel taint [ 137.544225][ T8247] Kernel panic - not syncing: panic_on_kmsan set ... [ 137.550887][ T8247] CPU: 0 PID: 8247 Comm: syz-executor492 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 137.561031][ T8247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 137.571068][ T8247] Call Trace: [ 137.574335][ T8247] dump_stack+0x24c/0x2e0 [ 137.578657][ T8247] panic+0x4c6/0xea7 [ 137.582557][ T8247] ? add_taint+0x17c/0x210 [ 137.586955][ T8247] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 137.593099][ T8247] kmsan_report+0x1de/0x1e0 [ 137.597695][ T8247] __msan_warning+0x5c/0xa0 [ 137.602218][ T8247] hwsim_cloned_frame_received_nl+0x124f/0x13f0 [ 137.608653][ T8247] ? hwsim_register_received_nl+0x740/0x740 [ 137.614558][ T8247] genl_rcv_msg+0x1319/0x1610 [ 137.619329][ T8247] ? hwsim_register_received_nl+0x740/0x740 [ 137.625217][ T8247] ? kmsan_set_origin_checked+0xa2/0x100 [ 137.630835][ T8247] netlink_rcv_skb+0x6fa/0x810 [ 137.635585][ T8247] ? genl_bind+0x4b0/0x4b0 [ 137.639988][ T8247] genl_rcv+0x63/0x80 [ 137.643953][ T8247] netlink_unicast+0x11d6/0x14a0 [ 137.648875][ T8247] ? genl_pernet_exit+0x90/0x90 [ 137.653709][ T8247] netlink_sendmsg+0x1740/0x1840 [ 137.658720][ T8247] ? netlink_getsockopt+0x1830/0x1830 [ 137.664075][ T8247] __sys_sendto+0x9ea/0xc60 [ 137.668584][ T8247] ? kmsan_internal_unpoison_shadow+0x2f/0x40 [ 137.674743][ T8247] ? kmsan_get_metadata+0x116/0x180 [ 137.680011][ T8247] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 137.685799][ T8247] ? kmsan_get_metadata+0x116/0x180 [ 137.690979][ T8247] __se_sys_sendto+0x107/0x130 [ 137.695729][ T8247] __x64_sys_sendto+0x6e/0x90 [ 137.700475][ T8247] do_syscall_64+0x9f/0x140 [ 137.704989][ T8247] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 137.710967][ T8247] RIP: 0033:0x402d66 [ 137.714867][ T8247] 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 [ 137.734467][ T8247] RSP: 002b:00007ffe1b612e08 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 137.742875][ T8247] RAX: ffffffffffffffda RBX: 00007ffe1b612e80 RCX: 0000000000402d66 [ 137.750846][ T8247] RDX: 0000000000000034 RSI: 00007ffe1b612ed0 RDI: 0000000000000003 [ 137.758815][ T8247] RBP: 0000000000000001 R08: 00007ffe1b612e24 R09: 000000000000000c [ 137.766782][ T8247] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 137.774749][ T8247] R13: 00007ffe1b612ed0 R14: 0000000000000003 R15: 0000000000000000 [ 137.784196][ T8247] Kernel Offset: disabled [ 137.788531][ T8247] Rebooting in 86400 seconds..