[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 16.252744] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 17.877426] random: sshd: uninitialized urandom read (32 bytes read) [ 18.271046] random: sshd: uninitialized urandom read (32 bytes read) [ 19.059949] random: sshd: uninitialized urandom read (32 bytes read) [ 91.049340] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.0' (ECDSA) to the list of known hosts. [ 96.710673] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 96.873425] kasan: CONFIG_KASAN_INLINE enabled [ 96.878031] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 96.885386] general protection fault: 0000 [#1] SMP KASAN [ 96.890907] CPU: 0 PID: 4456 Comm: syz-executor610 Not tainted 4.18.0-rc3+ #45 [ 96.898238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.907597] RIP: 0010:do_raw_spin_lock+0x27/0x200 executing program executing program executing program [ 96.912417] Code: 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 56 41 55 41 54 53 48 89 fb 48 83 c7 04 48 89 fa 48 c1 ea 03 48 83 ec 08 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 7b [ 96.931552] RSP: 0018:ffff8801ac2df9c0 EFLAGS: 00010286 [ 96.936895] RAX: dffffc0000000000 RBX: 0000000000000230 RCX: 0000000000000000 [ 96.944142] RDX: 0000000000000046 RSI: 0000000000000000 RDI: 0000000000000234 [ 96.951389] RBP: ffff8801ac2df9e8 R08: 0000000000000001 R09: 0000000000000000 [ 96.958636] R10: ffffed0035724fa6 R11: ffff8801ab927d33 R12: dffffc0000000000 [ 96.965880] R13: ffff8801abf962c0 R14: 0000000000000220 R15: 0000000000000000 executing program [ 96.973127] FS: 00007fcd332e0700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 96.981329] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 96.987190] CR2: 00007fff2b4fcd5c CR3: 00000001d1f19000 CR4: 00000000001406f0 [ 96.994444] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 97.001689] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 97.008932] Call Trace: [ 97.011501] _raw_spin_lock_bh+0x39/0x40 [ 97.015537] ? smap_list_map_remove+0x96/0x350 executing program executing program [ 97.020094] smap_list_map_remove+0x96/0x350 [ 97.024475] ? __fget+0x414/0x670 [ 97.027904] ? smap_tx_work+0xcd0/0xcd0 [ 97.031852] ? expand_files.part.8+0x9c0/0x9c0 [ 97.036411] sock_map_ctx_update_elem.isra.21+0x3ab/0x570 [ 97.041923] ? __sock_map_ctx_update_elem.isra.20+0x1530/0x1530 [ 97.047960] ? lock_acquire+0x1e4/0x540 [ 97.051911] sock_map_update_elem+0x1b9/0x3b0 [ 97.056383] ? bpf_sock_map_update+0x60/0x60 [ 97.060767] ? lock_release+0xa30/0xa30 [ 97.064727] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 executing program executing program [ 97.070240] ? bpf_sock_map_update+0x60/0x60 [ 97.074623] map_update_elem+0x5c4/0xc90 [ 97.078663] __x64_sys_bpf+0x32d/0x510 [ 97.082527] ? bpf_prog_get+0x20/0x20 [ 97.086308] do_syscall_64+0x1b9/0x820 [ 97.090174] ? finish_task_switch+0x1d3/0x890 [ 97.094645] ? syscall_return_slowpath+0x5e0/0x5e0 [ 97.099551] ? syscall_return_slowpath+0x31d/0x5e0 [ 97.104456] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 97.109448] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 97.114266] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 97.119430] RIP: 0033:0x445d19 executing program executing program [ 97.122592] Code: e8 2c b7 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 2b 12 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 97.141749] RSP: 002b:00007fcd332dfce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 97.149431] RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 0000000000445d19 [ 97.156675] RDX: 0000000000000020 RSI: 0000000020000180 RDI: 0000000000000002 [ 97.163920] RBP: 00000000006dac20 R08: 0000000000000000 R09: 0000000000000000 [ 97.171165] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 97.178408] R13: 00007ffd667bb2bf R14: 00007fcd332e09c0 R15: 0000000000000005 [ 97.185664] Modules linked in: [ 97.188833] Dumping ftrace buffer: [ 97.192343] (ftrace buffer empty) [ 97.196081] ---[ end trace fbe082eee969c5a2 ]--- [ 97.200849] RIP: 0010:do_raw_spin_lock+0x27/0x200 [ 97.205679] Code: 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 56 41 55 41 54 53 48 89 fb 48 83 c7 04 48 89 fa 48 c1 ea 03 48 83 ec 08 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 7b executing program [ 97.224827] RSP: 0018:ffff8801ac2df9c0 EFLAGS: 00010286 [ 97.230177] RAX: dffffc0000000000 RBX: 0000000000000230 RCX: 0000000000000000 [ 97.237439] RDX: 0000000000000046 RSI: 0000000000000000 RDI: 0000000000000234 [ 97.244697] RBP: ffff8801ac2df9e8 R08: 0000000000000001 R09: 0000000000000000 [ 97.251975] R10: ffffed0035724fa6 R11: ffff8801ab927d33 R12: dffffc0000000000 [ 97.259233] R13: ffff8801abf962c0 R14: 0000000000000220 R15: 0000000000000000 [ 97.266498] FS: 00007fcd332e0700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 executing program [ 97.274709] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 97.280580] CR2: 00007fff2b4fcd5c CR3: 00000001d1f19000 CR4: 00000000001406f0 [ 97.287838] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 97.295097] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 97.302354] Kernel panic - not syncing: Fatal exception in interrupt [ 97.309209] Dumping ftrace buffer: [ 97.312720] (ftrace buffer empty) [ 97.316406] Kernel Offset: disabled [ 97.320008] Rebooting in 86400 seconds..