[ 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 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. Warning: Permanently added '10.128.0.31' (ECDSA) to the list of known hosts. executing program [ 171.583663][ T6368] ===================================================== [ 171.590839][ T6368] BUG: KMSAN: uninit-value in ppp_async_push+0xd6d/0x2260 [ 171.597973][ T6368] ppp_async_push+0xd6d/0x2260 [ 171.602756][ T6368] ppp_async_send+0x144/0x1e0 [ 171.607451][ T6368] __ppp_channel_push+0x1ab/0x3a0 [ 171.612896][ T6368] ppp_channel_push+0x263/0x320 [ 171.617789][ T6368] ppp_write+0x572/0x5e0 [ 171.622062][ T6368] vfs_write+0x8ce/0x2030 [ 171.626410][ T6368] ksys_write+0x28c/0x520 [ 171.630764][ T6368] __x64_sys_write+0xdb/0x120 [ 171.635453][ T6368] do_syscall_64+0x54/0xd0 [ 171.639886][ T6368] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 171.645817][ T6368] [ 171.648131][ T6368] Uninit was created at: [ 171.652408][ T6368] __kmalloc_node_track_caller+0xe0c/0x1510 [ 171.658349][ T6368] __alloc_skb+0x545/0xf90 [ 171.662785][ T6368] ppp_write+0x11d/0x5e0 [ 171.667048][ T6368] vfs_write+0x8ce/0x2030 [ 171.671412][ T6368] ksys_write+0x28c/0x520 [ 171.675779][ T6368] __x64_sys_write+0xdb/0x120 [ 171.680485][ T6368] do_syscall_64+0x54/0xd0 [ 171.684926][ T6368] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 171.690865][ T6368] [ 171.693268][ T6368] CPU: 0 PID: 6368 Comm: syz-executor544 Not tainted 5.16.0-rc3-syzkaller #0 [ 171.702045][ T6368] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 171.712112][ T6368] ===================================================== [ 171.719042][ T6368] Disabling lock debugging due to kernel taint [ 171.725564][ T6368] Kernel panic - not syncing: kmsan.panic set ... [ 171.731995][ T6368] CPU: 0 PID: 6368 Comm: syz-executor544 Tainted: G B 5.16.0-rc3-syzkaller #0 [ 171.742269][ T6368] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 171.752383][ T6368] Call Trace: [ 171.755678][ T6368] [ 171.758621][ T6368] dump_stack_lvl+0x1ff/0x28e [ 171.763352][ T6368] dump_stack+0x25/0x28 [ 171.767558][ T6368] panic+0x467/0xe03 [ 171.771515][ T6368] ? add_taint+0x187/0x210 [ 171.775963][ T6368] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 171.781810][ T6368] kmsan_report+0x306/0x310 [ 171.786365][ T6368] ? preempt_count_sub+0xf8/0x340 [ 171.791440][ T6368] ? __msan_warning+0xb8/0x130 [ 171.796231][ T6368] ? ppp_async_push+0xd6d/0x2260 [ 171.801365][ T6368] ? ppp_async_send+0x144/0x1e0 [ 171.806246][ T6368] ? __ppp_channel_push+0x1ab/0x3a0 [ 171.811493][ T6368] ? ppp_channel_push+0x263/0x320 [ 171.816547][ T6368] ? ppp_write+0x572/0x5e0 [ 171.820986][ T6368] ? vfs_write+0x8ce/0x2030 [ 171.825597][ T6368] ? ksys_write+0x28c/0x520 [ 171.830123][ T6368] ? __x64_sys_write+0xdb/0x120 [ 171.834993][ T6368] ? do_syscall_64+0x54/0xd0 [ 171.839603][ T6368] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 171.845797][ T6368] ? kmsan_get_metadata+0xa4/0x120 [ 171.850945][ T6368] ? kmsan_internal_set_shadow_origin+0x63/0xc0 [ 171.857239][ T6368] ? kmsan_internal_poison_memory+0x82/0xa0 [ 171.863172][ T6368] ? kmsan_internal_poison_memory+0x45/0xa0 [ 171.869092][ T6368] ? kmsan_slab_alloc+0xe1/0x150 [ 171.874054][ T6368] ? __kmalloc_node_track_caller+0xe0c/0x1510 [ 171.880166][ T6368] ? __alloc_skb+0x545/0xf90 [ 171.884793][ T6368] ? ppp_write+0x11d/0x5e0 [ 171.889390][ T6368] ? vfs_write+0x8ce/0x2030 [ 171.894035][ T6368] ? ksys_write+0x28c/0x520 [ 171.898612][ T6368] ? __x64_sys_write+0xdb/0x120 [ 171.903494][ T6368] ? do_syscall_64+0x54/0xd0 [ 171.908107][ T6368] ? kmsan_get_metadata+0xa4/0x120 [ 171.913256][ T6368] ? kmsan_get_metadata+0xa4/0x120 [ 171.918413][ T6368] ? kmsan_get_metadata+0xa4/0x120 [ 171.923557][ T6368] ? kmsan_internal_set_shadow_origin+0x63/0xc0 [ 171.929834][ T6368] ? kmsan_get_metadata+0xa4/0x120 [ 171.935131][ T6368] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 171.940984][ T6368] __msan_warning+0xb8/0x130 [ 171.945604][ T6368] ppp_async_push+0xd6d/0x2260 [ 171.950400][ T6368] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 171.956247][ T6368] ? kmsan_get_metadata+0xa4/0x120 [ 171.961395][ T6368] ppp_async_send+0x144/0x1e0 [ 171.966112][ T6368] ? async_lcp_peek+0xdc0/0xdc0 [ 171.971000][ T6368] __ppp_channel_push+0x1ab/0x3a0 [ 171.976079][ T6368] ppp_channel_push+0x263/0x320 [ 171.980955][ T6368] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 171.986805][ T6368] ppp_write+0x572/0x5e0 [ 171.991085][ T6368] ? ppp_read+0xbc0/0xbc0 [ 171.995437][ T6368] vfs_write+0x8ce/0x2030 [ 171.999824][ T6368] ? kmsan_get_metadata+0xa4/0x120 [ 172.004984][ T6368] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 172.010850][ T6368] ksys_write+0x28c/0x520 [ 172.015321][ T6368] __x64_sys_write+0xdb/0x120 [ 172.020024][ T6368] do_syscall_64+0x54/0xd0 [ 172.024464][ T6368] ? exc_page_fault+0x76/0x150 [ 172.029252][ T6368] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 172.035449][ T6368] RIP: 0033:0x7f61f5449ed9 [ 172.039941][ T6368] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 172.059569][ T6368] RSP: 002b:00007ffe9264ce78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 172.068007][ T6368] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f61f5449ed9 [ 172.076003][ T6368] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 172.083990][ T6368] RBP: 0000000000000000 R08: 00007ffe9264d018 R09: 00007ffe9264d018 [ 172.092235][ T6368] R10: 00007ffe9264d018 R11: 0000000000000246 R12: 00007f61f540d760 [ 172.100217][ T6368] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 172.108230][ T6368] [ 172.111740][ T6368] Kernel Offset: disabled [ 172.116082][ T6368] Rebooting in 86400 seconds..