[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.153' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 63.897258][ T8459] BUG: unable to handle page fault for address: fffff52006799a39 [ 63.904984][ T8459] #PF: supervisor read access in kernel mode [ 63.910968][ T8459] #PF: error_code(0x0000) - not-present page [ 63.916915][ T8459] PGD 23fff2067 P4D 23fff2067 PUD 101a4067 PMD 3586b067 PTE 0 [ 63.924358][ T8459] Oops: 0000 [#1] PREEMPT SMP KASAN [ 63.929531][ T8459] CPU: 1 PID: 8459 Comm: syz-executor717 Not tainted 5.10.0-rc6-syzkaller #0 [ 63.938254][ T8459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.948299][ T8459] RIP: 0010:pcpu_freelist_populate+0x1a5/0x260 [ 63.954424][ T8459] 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 [ 63.974000][ T8459] RSP: 0018:ffffc9000153fc30 EFLAGS: 00010a06 [ 63.980040][ T8459] RAX: ffffc90033ac3368 RBX: ffffc90033ccd1c8 RCX: ffffffff8184af27 [ 63.987985][ T8459] RDX: 1ffff92006799a39 RSI: ffffffff8184af34 RDI: 0000000000000005 [ 63.995960][ T8459] RBP: ffffe8ffffc33980 R08: 0000000000000000 R09: 0000000000000000 [ 64.003911][ T8459] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000013b [ 64.011859][ T8459] R13: 0000000000004003 R14: dffffc0000000000 R15: ffff8880140679c0 [ 64.019811][ T8459] FS: 00000000024b8880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 64.028717][ T8459] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.035280][ T8459] CR2: fffff52006799a39 CR3: 0000000012f16000 CR4: 00000000001506e0 [ 64.043243][ T8459] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.051187][ T8459] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.059128][ T8459] Call Trace: [ 64.062398][ T8459] htab_map_alloc+0x981/0x1230 [ 64.067149][ T8459] ? htab_map_alloc_check+0x2ee/0x430 [ 64.072495][ T8459] ? htab_percpu_map_seq_show_elem+0x4a0/0x4a0 [ 64.078619][ T8459] __do_sys_bpf+0xa81/0x5170 [ 64.083185][ T8459] ? bpf_link_get_from_fd+0x110/0x110 [ 64.088534][ T8459] ? __up_read+0x1a1/0x7b0 [ 64.092924][ T8459] ? _down_write_nest_lock+0x150/0x150 [ 64.098368][ T8459] ? syscall_enter_from_user_mode+0x1d/0x50 [ 64.104233][ T8459] do_syscall_64+0x2d/0x70 [ 64.108621][ T8459] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.114487][ T8459] RIP: 0033:0x440339 [ 64.118355][ T8459] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 64.137931][ T8459] RSP: 002b:00007fff690eb628 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 64.146317][ T8459] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440339 [ 64.154261][ T8459] RDX: 0000000000000040 RSI: 00000000200002c0 RDI: 0000000000000000 [ 64.162216][ T8459] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 64.170171][ T8459] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000401b40 [ 64.178115][ T8459] R13: 0000000000401bd0 R14: 0000000000000000 R15: 0000000000000000 [ 64.186074][ T8459] Modules linked in: [ 64.189941][ T8459] CR2: fffff52006799a39 [ 64.194072][ T8459] ---[ end trace 3f4ef4c2e3b2282b ]--- [ 64.199514][ T8459] RIP: 0010:pcpu_freelist_populate+0x1a5/0x260 [ 64.205652][ T8459] 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 [ 64.225235][ T8459] RSP: 0018:ffffc9000153fc30 EFLAGS: 00010a06 [ 64.231273][ T8459] RAX: ffffc90033ac3368 RBX: ffffc90033ccd1c8 RCX: ffffffff8184af27 [ 64.239217][ T8459] RDX: 1ffff92006799a39 RSI: ffffffff8184af34 RDI: 0000000000000005 [ 64.247161][ T8459] RBP: ffffe8ffffc33980 R08: 0000000000000000 R09: 0000000000000000 [ 64.255104][ T8459] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000013b [ 64.263059][ T8459] R13: 0000000000004003 R14: dffffc0000000000 R15: ffff8880140679c0 [ 64.271003][ T8459] FS: 00000000024b8880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 64.279907][ T8459] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.286464][ T8459] CR2: fffff52006799a39 CR3: 0000000012f16000 CR4: 00000000001506e0 [ 64.294410][ T8459] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.302352][ T8459] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.310296][ T8459] Kernel panic - not syncing: Fatal exception [ 64.317056][ T8459] Kernel Offset: disabled [ 64.321381][ T8459] Rebooting in 86400 seconds..