Warning: Permanently added '10.128.0.233' (ECDSA) to the list of known hosts.
executing program
[ 87.538693][ T3479] FAULT_INJECTION: forcing a failure.
[ 87.538693][ T3479] name fail_usercopy, interval 1, probability 0, space 0, times 1
[ 87.552343][ T3479] CPU: 1 PID: 3479 Comm: syz-executor849 Not tainted 5.16.0-rc5-syzkaller #0
[ 87.561258][ T3479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 87.571422][ T3479] Call Trace:
[ 87.574776][ T3479]
[ 87.577778][ T3479] dump_stack_lvl+0x1ff/0x28e
[ 87.582698][ T3479] dump_stack+0x25/0x28
[ 87.587005][ T3479] should_fail+0x8ba/0x9c0
[ 87.591596][ T3479] should_fail_usercopy+0x39/0x40
[ 87.596783][ T3479] _copy_from_user+0x5f/0x310
[ 87.601619][ T3479] ppp_write+0x334/0x5e0
[ 87.606051][ T3479] do_iter_write+0xb0c/0x1500
[ 87.610908][ T3479] ? ppp_read+0xbc0/0xbc0
[ 87.615401][ T3479] do_writev+0x645/0xe00
[ 87.619841][ T3479] ? ksys_write+0x450/0x510
[ 87.624494][ T3479] ? kmsan_get_metadata+0x33/0x220
[ 87.629773][ T3479] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0
[ 87.635765][ T3479] __x64_sys_writev+0xe5/0x120
[ 87.640701][ T3479] do_syscall_64+0x54/0xd0
[ 87.645274][ T3479] ? exc_page_fault+0x76/0x150
[ 87.650214][ T3479] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 87.656267][ T3479] RIP: 0033:0x7f5b453ee0e9
[ 87.660797][ T3479] 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
[ 87.680548][ T3479] RSP: 002b:00007ffdece9dae8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
[ 87.689113][ T3479] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f5b453ee0e9
[ 87.697200][ T3479] RDX: 10000000000000b9 RSI: 00000000200001c0 RDI: 0000000000000003
[ 87.705285][ T3479] RBP: 00007ffdece9db00 R08: 0000000000000001 R09: 0000000000000001
[ 87.713367][ T3479] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
[ 87.721441][ T3479] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 87.729552][ T3479]
[ 87.733076][ T3479] =====================================================
[ 87.740069][ T3479] BUG: KMSAN: uninit-value in ppp_send_frame+0x28d/0x27c0
[ 87.747227][ T3479] ppp_send_frame+0x28d/0x27c0
[ 87.752035][ T3479] __ppp_xmit_process+0x23e/0x4b0
[ 87.757102][ T3479] ppp_xmit_process+0x1fe/0x480
[ 87.761996][ T3479] ppp_write+0x5cb/0x5e0
[ 87.766280][ T3479] do_iter_write+0xb0c/0x1500
[ 87.770997][ T3479] do_writev+0x645/0xe00
[ 87.775277][ T3479] __x64_sys_writev+0xe5/0x120
[ 87.780077][ T3479] do_syscall_64+0x54/0xd0
[ 87.784535][ T3479] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 87.790467][ T3479]
[ 87.792796][ T3479] Uninit was created at:
[ 87.797099][ T3479] __kmalloc_node_track_caller+0xe0c/0x1510
[ 87.803048][ T3479] __alloc_skb+0x545/0xf90
[ 87.807505][ T3479] ppp_write+0x11d/0x5e0
[ 87.811787][ T3479] do_iter_write+0xb0c/0x1500
[ 87.816501][ T3479] do_writev+0x645/0xe00
[ 87.820785][ T3479] __x64_sys_writev+0xe5/0x120
[ 87.825587][ T3479] do_syscall_64+0x54/0xd0
[ 87.830048][ T3479] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 87.835983][ T3479]
[ 87.838311][ T3479] CPU: 1 PID: 3479 Comm: syz-executor849 Not tainted 5.16.0-rc5-syzkaller #0
[ 87.847105][ T3479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 87.857185][ T3479] =====================================================
[ 87.864126][ T3479] Disabling lock debugging due to kernel taint
[ 87.870397][ T3479] Kernel panic - not syncing: kmsan.panic set ...
[ 87.876824][ T3479] CPU: 1 PID: 3479 Comm: syz-executor849 Tainted: G B 5.16.0-rc5-syzkaller #0
[ 87.887011][ T3479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 87.897092][ T3479] Call Trace:
[ 87.900558][ T3479]
[ 87.903504][ T3479] dump_stack_lvl+0x1ff/0x28e
[ 87.908238][ T3479] dump_stack+0x25/0x28
[ 87.912439][ T3479] panic+0x487/0xe1f
[ 87.916382][ T3479] ? add_taint+0x181/0x210
[ 87.920835][ T3479] ? _raw_spin_unlock_irqrestore+0x78/0xb0
[ 87.926690][ T3479] kmsan_report+0x2e6/0x2f0
[ 87.931250][ T3479] ? __msan_warning+0xb8/0x130
[ 87.936055][ T3479] ? ppp_send_frame+0x28d/0x27c0
[ 87.941032][ T3479] ? __ppp_xmit_process+0x23e/0x4b0
[ 87.946271][ T3479] ? ppp_xmit_process+0x1fe/0x480
[ 87.951342][ T3479] ? ppp_write+0x5cb/0x5e0
[ 87.955801][ T3479] ? do_iter_write+0xb0c/0x1500
[ 87.960696][ T3479] ? do_writev+0x645/0xe00
[ 87.965153][ T3479] ? __x64_sys_writev+0xe5/0x120
[ 87.970138][ T3479] ? do_syscall_64+0x54/0xd0
[ 87.974781][ T3479] ? entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 87.980894][ T3479] ? show_trace_log_lvl+0x1075/0x1290
[ 87.986329][ T3479] ? preempt_count_sub+0xf8/0x330
[ 87.991408][ T3479] ? _raw_spin_unlock_irqrestore+0x78/0xb0
[ 87.997259][ T3479] ? __stack_depot_save+0x3a9/0x4d0
[ 88.002497][ T3479] ? kmsan_get_metadata+0x33/0x220
[ 88.007659][ T3479] ? kmsan_internal_set_shadow_origin+0x5e/0xc0
[ 88.013958][ T3479] __msan_warning+0xb8/0x130
[ 88.018595][ T3479] ppp_send_frame+0x28d/0x27c0
[ 88.023408][ T3479] ? _raw_spin_unlock_irqrestore+0x78/0xb0
[ 88.029261][ T3479] ? skb_shift+0x201f/0x27e0
[ 88.033909][ T3479] __ppp_xmit_process+0x23e/0x4b0
[ 88.038981][ T3479] ppp_xmit_process+0x1fe/0x480
[ 88.043885][ T3479] ppp_write+0x5cb/0x5e0
[ 88.048182][ T3479] do_iter_write+0xb0c/0x1500
[ 88.052919][ T3479] ? ppp_read+0xbc0/0xbc0
[ 88.057295][ T3479] do_writev+0x645/0xe00
[ 88.061598][ T3479] ? ksys_write+0x450/0x510
[ 88.066151][ T3479] ? kmsan_get_metadata+0x33/0x220
[ 88.071316][ T3479] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0
[ 88.077179][ T3479] __x64_sys_writev+0xe5/0x120
[ 88.081997][ T3479] do_syscall_64+0x54/0xd0
[ 88.086458][ T3479] ? exc_page_fault+0x76/0x150
[ 88.091282][ T3479] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 88.097226][ T3479] RIP: 0033:0x7f5b453ee0e9
[ 88.101669][ T3479] 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
[ 88.121405][ T3479] RSP: 002b:00007ffdece9dae8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
[ 88.129862][ T3479] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f5b453ee0e9
[ 88.137862][ T3479] RDX: 10000000000000b9 RSI: 00000000200001c0 RDI: 0000000000000003
[ 88.145862][ T3479] RBP: 00007ffdece9db00 R08: 0000000000000001 R09: 0000000000000001
[ 88.153861][ T3479] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
[ 88.161858][ T3479] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 88.169871][ T3479]
[ 88.173168][ T3479] Kernel Offset: disabled
[ 88.177503][ T3479] Rebooting in 86400 seconds..