syzkaller login: [ 95.143290][ T124] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.8' (ECDSA) to the list of known hosts. executing program [ 96.050250][ T3474] netlink: 20 bytes leftover after parsing attributes in process `syz-executor333'. [ 96.103952][ T3475] ------------[ cut here ]------------ [ 96.109480][ T3475] WARNING: CPU: 0 PID: 3475 at net/core/dev.c:6284 netif_napi_add+0xa0e/0xed0 [ 96.118660][ T3475] Modules linked in: [ 96.122709][ T3475] CPU: 0 PID: 3475 Comm: syz-executor333 Not tainted 5.18.0-syzkaller-16265-g365ac3bfacfb #0 [ 96.133181][ T3475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.143427][ T3475] RIP: 0010:netif_napi_add+0xa0e/0xed0 [ 96.149072][ T3475] Code: 24 e9 78 01 00 00 44 89 ff e8 be f6 41 f7 4d 85 f6 0f 84 66 fc ff ff e8 50 56 c5 f6 48 8b 5d a0 e9 69 01 00 00 e8 42 56 c5 f6 <0f> 0b e9 f9 02 00 00 8b 3a e8 94 f6 41 f7 f6 c3 01 0f 85 61 fa ff [ 96.168960][ T3475] RSP: 0018:ffff88812188b8f8 EFLAGS: 00010293 [ 96.175259][ T3475] RAX: ffffffff8ae11e9e RBX: ffff88814d32a300 RCX: ffff888122658000 [ 96.183503][ T3475] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 96.191603][ T3475] RBP: ffff88812188b978 R08: ffffffff8ae114fa R09: ffff88814cb2a3e8 [ 96.199806][ T3475] R10: ffff88812188b858 R11: ffff888122658000 R12: ffff88814d32a3d8 [ 96.208115][ T3475] R13: 0000000000000040 R14: ffff888125658000 R15: ffff888122658b40 [ 96.216360][ T3475] FS: 00007fea988d8700(0000) GS:ffff88813fc00000(0000) knlGS:0000000000000000 [ 96.225517][ T3475] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 96.232338][ T3475] CR2: 00000000200002c0 CR3: 0000000115b99000 CR4: 00000000003506f0 [ 96.240434][ T3475] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 96.248598][ T3475] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 96.256764][ T3475] Call Trace: [ 96.260091][ T3475] [ 96.263218][ T3475] ? __tun_detach+0x1d90/0x1d90 [ 96.268246][ T3475] ===================================================== [ 96.275366][ T3475] BUG: KMSAN: uninit-value in show_trace_log_lvl+0x825/0xbb0 [ 96.282877][ T3475] show_trace_log_lvl+0x825/0xbb0 [ 96.287942][ T3475] show_regs+0xad/0xd0 [ 96.292182][ T3475] __warn+0x242/0x580 [ 96.296214][ T3475] report_bug+0x7d4/0x9e0 [ 96.300558][ T3475] handle_bug+0x41/0x70 [ 96.304845][ T3475] exc_invalid_op+0x1b/0x50 [ 96.309385][ T3475] asm_exc_invalid_op+0x12/0x20 [ 96.314401][ T3475] netif_napi_add+0xa0e/0xed0 [ 96.319197][ T3475] tun_attach+0xe26/0x21a0 [ 96.323779][ T3475] tun_net_init+0x468/0x650 [ 96.328314][ T3475] register_netdevice+0x4bf/0x21f0 [ 96.333576][ T3475] tun_set_iff+0xc14/0x1610 [ 96.338126][ T3475] __tun_chr_ioctl+0xcfb/0x3bd0 [ 96.343165][ T3475] tun_chr_ioctl+0x3f/0x50 [ 96.347627][ T3475] __se_sys_ioctl+0x222/0x400 [ 96.352544][ T3475] __x64_sys_ioctl+0x92/0xd0 [ 96.357205][ T3475] do_syscall_64+0x3d/0xb0 [ 96.361642][ T3475] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 96.367683][ T3475] [ 96.370021][ T3475] Local variable tmp created at: [ 96.375072][ T3475] number+0x75/0x1ff0 [ 96.379107][ T3475] vsnprintf+0x1d0a/0x29a0 [ 96.383692][ T3475] [ 96.386035][ T3475] CPU: 0 PID: 3475 Comm: syz-executor333 Not tainted 5.18.0-syzkaller-16265-g365ac3bfacfb #0 [ 96.396321][ T3475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.406589][ T3475] ===================================================== [ 96.413618][ T3475] Disabling lock debugging due to kernel taint [ 96.419803][ T3475] Kernel panic - not syncing: kmsan.panic set ... [ 96.426232][ T3475] CPU: 0 PID: 3475 Comm: syz-executor333 Tainted: G B 5.18.0-syzkaller-16265-g365ac3bfacfb #0 [ 96.437877][ T3475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.448112][ T3475] Call Trace: [ 96.451391][ T3475] [ 96.454319][ T3475] dump_stack_lvl+0x1c8/0x256 [ 96.459019][ T3475] dump_stack+0x1a/0x1c [ 96.463187][ T3475] panic+0x4d3/0xc69 [ 96.467109][ T3475] ? get_taint+0x1/0x50 [ 96.471283][ T3475] ? add_taint+0x104/0x1a0 [ 96.475714][ T3475] ? console_unlock+0x1c70/0x20c0 [ 96.480773][ T3475] kmsan_report+0x2cc/0x2d0 [ 96.485306][ T3475] ? kmsan_get_metadata+0x33/0x220 [ 96.490441][ T3475] ? kmsan_get_shadow_origin_ptr+0x9a/0xf0 [ 96.496292][ T3475] ? __msan_warning+0x92/0x110 [ 96.501084][ T3475] ? show_trace_log_lvl+0x825/0xbb0 [ 96.506296][ T3475] ? show_regs+0xad/0xd0 [ 96.510549][ T3475] ? __warn+0x242/0x580 [ 96.515326][ T3475] ? report_bug+0x7d4/0x9e0 [ 96.519844][ T3475] ? handle_bug+0x41/0x70 [ 96.524193][ T3475] ? exc_invalid_op+0x1b/0x50 [ 96.528896][ T3475] ? asm_exc_invalid_op+0x12/0x20 [ 96.533938][ T3475] ? netif_napi_add+0xa0e/0xed0 [ 96.538808][ T3475] ? tun_attach+0xe26/0x21a0 [ 96.543415][ T3475] ? tun_net_init+0x468/0x650 [ 96.548104][ T3475] ? register_netdevice+0x4bf/0x21f0 [ 96.553410][ T3475] ? tun_set_iff+0xc14/0x1610 [ 96.558097][ T3475] ? __tun_chr_ioctl+0xcfb/0x3bd0 [ 96.563134][ T3475] ? tun_chr_ioctl+0x3f/0x50 [ 96.567764][ T3475] ? __se_sys_ioctl+0x222/0x400 [ 96.572655][ T3475] ? __x64_sys_ioctl+0x92/0xd0 [ 96.577447][ T3475] ? do_syscall_64+0x3d/0xb0 [ 96.582071][ T3475] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 96.588156][ T3475] ? kmsan_get_shadow_origin_ptr+0x9a/0xf0 [ 96.593992][ T3475] ? kmsan_get_metadata+0x33/0x220 [ 96.599126][ T3475] ? kmsan_get_shadow_origin_ptr+0x9a/0xf0 [ 96.604961][ T3475] ? preempt_count_sub+0x7d/0x280 [ 96.610001][ T3475] ? is_module_text_address+0x206/0x2a0 [ 96.615560][ T3475] ? kmsan_get_metadata+0x33/0x220 [ 96.620694][ T3475] ? kmsan_get_shadow_origin_ptr+0x9a/0xf0 [ 96.626529][ T3475] __msan_warning+0x92/0x110 [ 96.631142][ T3475] show_trace_log_lvl+0x825/0xbb0 [ 96.636201][ T3475] ? tun_attach+0xe26/0x21a0 [ 96.640825][ T3475] show_regs+0xad/0xd0 [ 96.644914][ T3475] __warn+0x242/0x580 [ 96.648941][ T3475] ? netif_napi_add+0xa0e/0xed0 [ 96.653837][ T3475] report_bug+0x7d4/0x9e0 [ 96.658208][ T3475] ? netif_napi_add+0xa0e/0xed0 [ 96.663081][ T3475] handle_bug+0x41/0x70 [ 96.667262][ T3475] exc_invalid_op+0x1b/0x50 [ 96.671789][ T3475] asm_exc_invalid_op+0x12/0x20 [ 96.676675][ T3475] RIP: 0010:netif_napi_add+0xa0e/0xed0 [ 96.682154][ T3475] Code: 24 e9 78 01 00 00 44 89 ff e8 be f6 41 f7 4d 85 f6 0f 84 66 fc ff ff e8 50 56 c5 f6 48 8b 5d a0 e9 69 01 00 00 e8 42 56 c5 f6 <0f> 0b e9 f9 02 00 00 8b 3a e8 94 f6 41 f7 f6 c3 01 0f 85 61 fa ff [ 96.701785][ T3475] RSP: 0018:ffff88812188b8f8 EFLAGS: 00010293 [ 96.708001][ T3475] RAX: ffffffff8ae11e9e RBX: ffff88814d32a300 RCX: ffff888122658000 [ 96.715997][ T3475] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 96.723973][ T3475] RBP: ffff88812188b978 R08: ffffffff8ae114fa R09: ffff88814cb2a3e8 [ 96.731989][ T3475] R10: ffff88812188b858 R11: ffff888122658000 R12: ffff88814d32a3d8 [ 96.739971][ T3475] R13: 0000000000000040 R14: ffff888125658000 R15: ffff888122658b40 [ 96.747956][ T3475] ? netif_napi_add+0x6a/0xed0 [ 96.752738][ T3475] ? netif_napi_add+0xa0e/0xed0 [ 96.757609][ T3475] ? netif_napi_add+0xa0e/0xed0 [ 96.762474][ T3475] ? __tun_detach+0x1d90/0x1d90 [ 96.767347][ T3475] tun_attach+0xe26/0x21a0 [ 96.771821][ T3475] tun_net_init+0x468/0x650 [ 96.776369][ T3475] ? tun_net_initialize+0x330/0x330 [ 96.781693][ T3475] register_netdevice+0x4bf/0x21f0 [ 96.786914][ T3475] ? kmsan_get_metadata+0x33/0x220 [ 96.792078][ T3475] ? kmsan_get_shadow_origin_ptr+0x9a/0xf0 [ 96.797924][ T3475] tun_set_iff+0xc14/0x1610 [ 96.802451][ T3475] __tun_chr_ioctl+0xcfb/0x3bd0 [ 96.807333][ T3475] tun_chr_ioctl+0x3f/0x50 [ 96.811781][ T3475] ? tun_chr_poll+0xbc0/0xbc0 [ 96.816486][ T3475] __se_sys_ioctl+0x222/0x400 [ 96.821208][ T3475] __x64_sys_ioctl+0x92/0xd0 [ 96.825831][ T3475] do_syscall_64+0x3d/0xb0 [ 96.830465][ T3475] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 96.836385][ T3475] RIP: 0033:0x7fea98947da9 [ 96.840803][ T3475] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 15 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 b8 ff ff ff f7 d8 64 89 01 48 [ 96.860436][ T3475] RSP: 002b:00007fea988d8308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 96.868887][ T3475] RAX: ffffffffffffffda RBX: 00007fea989d1438 RCX: 00007fea98947da9 [ 96.876878][ T3475] RDX: 0000000020000200 RSI: 00000000400454ca RDI: 0000000000000003 [ 96.884889][ T3475] RBP: 00007fea989d1430 R08: 00007fea988d8700 R09: 0000000000000000 [ 96.892873][ T3475] R10: 00007fea988d8700 R11: 0000000000000246 R12: 00007fea989d143c [ 96.900981][ T3475] R13: 00007fea9899e174 R14: 74656e2f7665642f R15: 0000000000022000 [ 96.908973][ T3475] [ 96.912179][ T3475] Kernel Offset: disabled [ 96.916506][ T3475] Rebooting in 86400 seconds..