[ 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 '10.128.0.151' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.827889] kasan: CONFIG_KASAN_INLINE enabled [ 34.832555] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 34.839908] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 34.846123] CPU: 1 PID: 8112 Comm: syz-executor167 Not tainted 4.19.211-syzkaller #0 [ 34.853978] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.863320] RIP: 0010:tls_push_sg+0x219/0x7c0 [ 34.867794] Code: 89 04 24 4c 89 e7 e8 86 be 69 fa 49 39 ec 75 ab e8 6c bd 69 fa 49 8d 7e 08 48 b9 00 00 00 00 00 fc ff df 48 89 f8 48 c1 e8 03 <80> 3c 08 00 0f 85 b3 04 00 00 49 8b 5e 08 31 ff 48 89 dd 83 e5 01 [ 34.886676] RSP: 0018:ffff8880952f7a70 EFLAGS: 00010202 [ 34.892028] RAX: 0000000000000001 RBX: 0000000000000000 RCX: dffffc0000000000 [ 34.899276] RDX: 0000000000000000 RSI: ffffffff86f8c804 RDI: 0000000000000008 [ 34.906524] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 34.913769] R10: 0000000000000006 R11: 0000000000000000 R12: 0000000000000000 [ 34.921015] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888098ec0040 [ 34.928263] FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 34.936472] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.942330] CR2: 0000000000000000 CR3: 0000000009e6d000 CR4: 00000000003406e0 [ 34.949578] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.956834] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.964087] Call Trace: [ 34.966659] tls_push_record+0xb4e/0x1370 [ 34.970786] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 34.975358] tls_sk_proto_close+0x8cf/0xc20 [ 34.979657] ? mark_held_locks+0xf0/0xf0 [ 34.983703] ? tcp_check_oom+0x520/0x520 [ 34.987749] ? tls_write_space+0x320/0x320 [ 34.991972] ? ip_mc_drop_socket+0x16/0x260 [ 34.996270] inet_release+0xd7/0x1e0 [ 34.999961] inet6_release+0x4c/0x70 [ 35.003670] __sock_release+0xcd/0x2a0 [ 35.007543] ? __sock_release+0x2a0/0x2a0 [ 35.011665] sock_close+0x15/0x20 [ 35.015095] __fput+0x2ce/0x890 [ 35.018354] task_work_run+0x148/0x1c0 [ 35.022220] do_exit+0xbf3/0x2be0 [ 35.025651] ? tls_setsockopt+0xaa/0x740 [ 35.029691] ? mm_update_next_owner+0x650/0x650 [ 35.034348] ? __sys_setsockopt+0x179/0x240 [ 35.038646] ? do_writev+0x21d/0x330 [ 35.042339] do_group_exit+0x125/0x310 [ 35.046205] __x64_sys_exit_group+0x3a/0x50 [ 35.050503] do_syscall_64+0xf9/0x620 [ 35.054286] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.059450] RIP: 0033:0x7f0581f89e29 [ 35.063140] Code: Bad RIP value. [ 35.066477] RSP: 002b:00007fff0390a0a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 35.074170] RAX: ffffffffffffffda RBX: 00007f0581ffd270 RCX: 00007f0581f89e29 [ 35.081419] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 35.088663] RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 0000000000000000 [ 35.095907] R10: 0000000000000028 R11: 0000000000000246 R12: 00007f0581ffd270 [ 35.103152] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 35.110398] Modules linked in: [ 35.114156] ---[ end trace 4a1a7d4a5f5daef9 ]--- [ 35.118922] RIP: 0010:tls_push_sg+0x219/0x7c0 [ 35.123545] Code: 89 04 24 4c 89 e7 e8 86 be 69 fa 49 39 ec 75 ab e8 6c bd 69 fa 49 8d 7e 08 48 b9 00 00 00 00 00 fc ff df 48 89 f8 48 c1 e8 03 <80> 3c 08 00 0f 85 b3 04 00 00 49 8b 5e 08 31 ff 48 89 dd 83 e5 01 [ 35.142562] RSP: 0018:ffff8880952f7a70 EFLAGS: 00010202 [ 35.147915] RAX: 0000000000000001 RBX: 0000000000000000 RCX: dffffc0000000000 [ 35.155204] RDX: 0000000000000000 RSI: ffffffff86f8c804 RDI: 0000000000000008 [ 35.162523] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 35.169783] R10: 0000000000000006 R11: 0000000000000000 R12: 0000000000000000 [ 35.177069] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888098ec0040 [ 35.184382] FS: 00005555572ac300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 35.192626] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.198492] CR2: 00007f0581f89dff CR3: 00000000aa81f000 CR4: 00000000003406e0 [ 35.205790] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.213099] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.220353] Kernel panic - not syncing: Fatal exception [ 35.225888] Kernel Offset: disabled [ 35.229515] Rebooting in 86400 seconds..