[ 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 '10.128.0.171' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 63.922246][ T8494] BUG: unable to handle page fault for address: fffff5200686aa39 [ 63.929969][ T8494] #PF: supervisor read access in kernel mode [ 63.935920][ T8494] #PF: error_code(0x0000) - not-present page [ 63.941888][ T8494] PGD 23fff2067 P4D 23fff2067 PUD 101a4067 PMD 358e8067 PTE 0 [ 63.949445][ T8494] Oops: 0000 [#1] PREEMPT SMP KASAN [ 63.954614][ T8494] CPU: 0 PID: 8494 Comm: syz-executor408 Not tainted 5.10.0-rc6-syzkaller #0 [ 63.963339][ T8494] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.973395][ T8494] RIP: 0010:pcpu_freelist_populate+0x1a5/0x260 [ 63.979524][ T8494] Code: 85 8f 00 00 00 48 8b 04 24 48 03 2c c5 c0 16 e4 8a 48 89 e8 48 c1 e8 03 42 80 3c 30 00 75 6b 48 89 da 48 8b 45 00 48 c1 ea 03 <42> 80 3c 32 00 75 45 48 89 03 44 89 ee 44 89 e7 48 89 5d 00 48 03 [ 63.999115][ T8494] RSP: 0018:ffffc9000163fc30 EFLAGS: 00010a06 [ 64.005157][ T8494] RAX: ffffc9003414b368 RBX: ffffc900343551c8 RCX: ffffffff8184af27 [ 64.013102][ T8494] RDX: 1ffff9200686aa39 RSI: ffffffff8184af34 RDI: 0000000000000005 [ 64.021057][ T8494] RBP: ffffe8ffffc31e68 R08: 0000000000000000 R09: 0000000000000000 [ 64.029019][ T8494] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000013b [ 64.036976][ T8494] R13: 0000000000004003 R14: dffffc0000000000 R15: ffff8880208069c0 [ 64.044923][ T8494] FS: 0000000000eef880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 64.053912][ T8494] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.060482][ T8494] CR2: fffff5200686aa39 CR3: 000000001164a000 CR4: 00000000001506f0 [ 64.068428][ T8494] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.076373][ T8494] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.084316][ T8494] Call Trace: [ 64.087585][ T8494] htab_map_alloc+0x981/0x1230 [ 64.092325][ T8494] ? htab_map_alloc_check+0x2ee/0x430 [ 64.097672][ T8494] ? htab_percpu_map_seq_show_elem+0x4a0/0x4a0 [ 64.103811][ T8494] __do_sys_bpf+0xa81/0x5170 [ 64.108487][ T8494] ? bpf_link_get_from_fd+0x110/0x110 [ 64.113841][ T8494] ? __up_read+0x1a1/0x7b0 [ 64.118238][ T8494] ? _down_write_nest_lock+0x150/0x150 [ 64.123688][ T8494] ? syscall_enter_from_user_mode+0x1d/0x50 [ 64.129573][ T8494] do_syscall_64+0x2d/0x70 [ 64.133969][ T8494] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.139838][ T8494] RIP: 0033:0x4412e9 [ 64.143709][ T8494] Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 64.163286][ T8494] RSP: 002b:00007ffc6428d8b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 64.171670][ T8494] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412e9 [ 64.179613][ T8494] RDX: 0000000000000040 RSI: 00000000200002c0 RDI: 0000000000000000 [ 64.187556][ T8494] RBP: 00000000006cb018 R08: 0000000000000004 R09: 00000000004002c8 [ 64.195513][ T8494] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402090 [ 64.203458][ T8494] R13: 0000000000402120 R14: 0000000000000000 R15: 0000000000000000 [ 64.211403][ T8494] Modules linked in: [ 64.215271][ T8494] CR2: fffff5200686aa39 [ 64.219414][ T8494] ---[ end trace f4fc32505ab0c3de ]--- [ 64.224850][ T8494] RIP: 0010:pcpu_freelist_populate+0x1a5/0x260 [ 64.230988][ T8494] Code: 85 8f 00 00 00 48 8b 04 24 48 03 2c c5 c0 16 e4 8a 48 89 e8 48 c1 e8 03 42 80 3c 30 00 75 6b 48 89 da 48 8b 45 00 48 c1 ea 03 <42> 80 3c 32 00 75 45 48 89 03 44 89 ee 44 89 e7 48 89 5d 00 48 03 [ 64.250568][ T8494] RSP: 0018:ffffc9000163fc30 EFLAGS: 00010a06 [ 64.256618][ T8494] RAX: ffffc9003414b368 RBX: ffffc900343551c8 RCX: ffffffff8184af27 [ 64.264568][ T8494] RDX: 1ffff9200686aa39 RSI: ffffffff8184af34 RDI: 0000000000000005 [ 64.272533][ T8494] RBP: ffffe8ffffc31e68 R08: 0000000000000000 R09: 0000000000000000 [ 64.280487][ T8494] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000013b [ 64.288441][ T8494] R13: 0000000000004003 R14: dffffc0000000000 R15: ffff8880208069c0 [ 64.296400][ T8494] FS: 0000000000eef880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 64.305311][ T8494] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.311872][ T8494] CR2: fffff5200686aa39 CR3: 000000001164a000 CR4: 00000000001506f0 [ 64.319818][ T8494] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.327786][ T8494] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.335736][ T8494] Kernel panic - not syncing: Fatal exception [ 64.342326][ T8494] Kernel Offset: disabled [ 64.346638][ T8494] Rebooting in 86400 seconds..