[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 15.577276] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 19.744287] random: sshd: uninitialized urandom read (32 bytes read) [ 20.057541] random: sshd: uninitialized urandom read (32 bytes read) [ 20.762250] random: sshd: uninitialized urandom read (32 bytes read) [ 20.898375] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.44' (ECDSA) to the list of known hosts. [ 26.356482] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.492382] kasan: CONFIG_KASAN_INLINE enabled [ 26.497000] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 26.504386] general protection fault: 0000 [#1] SMP KASAN [ 26.509905] CPU: 1 PID: 4468 Comm: syz-executor872 Not tainted 4.18.0-rc3+ #53 [ 26.516381] kasan: CONFIG_KASAN_INLINE enabled [ 26.517240] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.517255] RIP: 0010:do_raw_spin_lock+0x27/0x200 [ 26.517262] Code: [ 26.521882] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 26.531203] 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 [ 26.564088] RSP: 0018:ffff8801c7ccf9c0 EFLAGS: 00010286 [ 26.569434] RAX: dffffc0000000000 RBX: 0000000000000230 RCX: 0000000000000000 [ 26.576701] RDX: 0000000000000046 RSI: 0000000000000000 RDI: 0000000000000234 [ 26.583948] RBP: ffff8801c7ccf9e8 R08: 0000000000000001 R09: 0000000000000000 [ 26.591202] R10: ffffed003b2434de R11: ffff8801d921a6f3 R12: dffffc0000000000 [ 26.598449] R13: ffff8801ac7bef80 R14: 0000000000000220 R15: 0000000000000000 [ 26.605709] FS: 00007f4bb8de6700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 26.613921] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.619782] CR2: 00007ffdc722ef1c CR3: 00000001b97cf000 CR4: 00000000001406e0 [ 26.627034] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.634295] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.641545] Call Trace: [ 26.644119] _raw_spin_lock_bh+0x39/0x40 [ 26.648163] ? smap_list_map_remove+0x96/0x350 [ 26.652723] smap_list_map_remove+0x96/0x350 [ 26.657122] ? __fget+0x414/0x670 [ 26.660555] ? smap_tx_work+0xcd0/0xcd0 [ 26.664506] ? expand_files.part.8+0x9c0/0x9c0 [ 26.669071] sock_map_ctx_update_elem.isra.21+0x3ab/0x570 [ 26.674588] ? __sock_map_ctx_update_elem.isra.20+0x1530/0x1530 [ 26.680641] ? lock_acquire+0x1e4/0x540 [ 26.684595] sock_map_update_elem+0x1b9/0x3b0 [ 26.689071] ? bpf_sock_map_update+0x60/0x60 [ 26.693455] ? lock_release+0xa30/0xa30 [ 26.697420] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 26.702934] ? bpf_sock_map_update+0x60/0x60 [ 26.707328] map_update_elem+0x5c4/0xc90 [ 26.711366] __x64_sys_bpf+0x32d/0x510 [ 26.715230] ? bpf_prog_get+0x20/0x20 [ 26.719020] do_syscall_64+0x1b9/0x820 [ 26.722882] ? finish_task_switch+0x1d3/0x890 [ 26.727354] ? syscall_return_slowpath+0x5e0/0x5e0 [ 26.732273] ? syscall_return_slowpath+0x31d/0x5e0 [ 26.737192] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 26.742186] ? prepare_exit_to_usermode+0x291/0x3b0 [ 26.747177] ? perf_trace_sys_enter+0xb10/0xb10 [ 26.751824] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 26.756646] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 26.761813] RIP: 0033:0x445bf9 [ 26.764986] Code: e8 bc e7 ff ff 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 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 26.784115] RSP: 002b:00007f4bb8de5db8 EFLAGS: 00000297 ORIG_RAX: 0000000000000141 [ 26.791802] RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 0000000000445bf9 [ 26.799046] RDX: 0000000000000020 RSI: 0000000020000180 RDI: 0000000000000002 [ 26.806303] RBP: 00000000006dac20 R08: 0000000000000000 R09: 0000000000000000 [ 26.813547] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000000 [ 26.820791] R13: 00007ffe87ada60f R14: 00007f4bb8de69c0 R15: 0000000000000007 [ 26.828040] Modules linked in: [ 26.831213] Dumping ftrace buffer: [ 26.834725] (ftrace buffer empty) [ 26.838428] general protection fault: 0000 [#2] SMP KASAN [ 26.838473] ---[ end trace 711d8ac2879beea7 ]--- [ 26.843983] CPU: 0 PID: 4467 Comm: syz-executor872 Tainted: G D 4.18.0-rc3+ #53 [ 26.843988] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.844008] RIP: 0010:do_raw_spin_lock+0x27/0x200 [ 26.848754] RIP: 0010:do_raw_spin_lock+0x27/0x200 [ 26.857466] Code: 00 00 [ 26.866822] Code: [ 26.871635] 00 48 b8 00 00 00 00 00 fc ff [ 26.876497] 00 [ 26.879130] df 55 48 89 e5 [ 26.881284] 00 [ 26.885484] 41 56 41 55 41 [ 26.887370] 00 [ 26.890269] 54 53 48 89 [ 26.892152] 48 [ 26.895056] fb 48 83 c7 04 [ 26.896942] b8 [ 26.899580] 48 89 fa 48 [ 26.901464] 00 [ 26.904363] c1 ea 03 48 [ 26.906244] 00 [ 26.908885] 83 ec 08 <0f> [ 26.910768] 00 [ 26.913406] b6 14 02 48 [ 26.915289] 00 [ 26.918104] 89 f8 83 [ 26.919988] 00 [ 26.922629] e0 07 83 [ 26.924518] fc [ 26.926902] c0 03 38 d0 7c [ 26.928786] ff [ 26.931166] 08 84 d2 0f [ 26.933052] df [ 26.936574] 85 7b [ 26.936588] RSP: 0018:ffff8801c7ce79c0 EFLAGS: 00010286 [ 26.938459] 55 [ 26.941101] RAX: dffffc0000000000 RBX: 0000000000000230 RCX: 0000000000000000 [ 26.941105] RDX: 0000000000000046 RSI: 0000000000000000 RDI: 0000000000000234 [ 26.941109] RBP: ffff8801c7ce79e8 R08: 0000000000000001 R09: 0000000000000000 [ 26.941114] R10: ffffed003b25c68e R11: ffff8801d92e3473 R12: dffffc0000000000 [ 26.941118] R13: ffff8801d911e3c0 R14: 0000000000000220 R15: 0000000000000000 [ 26.941125] FS: 00007f4bb8de6700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 26.941129] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.941134] CR2: 00007ffeb7d1fef8 CR3: 00000001ba699000 CR4: 00000000001406f0 [ 26.941140] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.941144] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.941151] Call Trace: [ 26.943030] 48 [ 26.945157] _raw_spin_lock_bh+0x39/0x40 [ 26.945171] ? smap_list_map_remove+0x96/0x350 [ 26.950508] 89 [ 26.952375] smap_list_map_remove+0x96/0x350 [ 26.952386] ? __fget+0x414/0x670 [ 26.959637] e5 [ 26.966886] ? smap_tx_work+0xcd0/0xcd0 [ 26.966898] ? expand_files.part.8+0x9c0/0x9c0 [ 26.974164] 41 [ 26.981413] sock_map_ctx_update_elem.isra.21+0x3ab/0x570 [ 26.981428] ? __sock_map_ctx_update_elem.isra.20+0x1530/0x1530 [ 26.988683] 56 [ 26.996899] ? lock_acquire+0x1e4/0x540 [ 26.996913] sock_map_update_elem+0x1b9/0x3b0 [ 27.002777] 41 [ 27.010033] ? bpf_sock_map_update+0x60/0x60 [ 27.010047] ? lock_release+0xa30/0xa30 [ 27.017298] 55 [ 27.024556] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 27.024570] ? bpf_sock_map_update+0x60/0x60 [ 27.027133] 41 [ 27.029006] map_update_elem+0x5c4/0xc90 [ 27.029015] __x64_sys_bpf+0x32d/0x510 [ 27.029026] ? bpf_prog_get+0x20/0x20 [ 27.033065] 54 [ 27.037629] do_syscall_64+0x1b9/0x820 [ 27.037642] ? syscall_slow_exit_work+0x500/0x500 [ 27.039510] 53 [ 27.043906] ? syscall_return_slowpath+0x5e0/0x5e0 [ 27.043918] ? syscall_return_slowpath+0x31d/0x5e0 [ 27.047349] 48 [ 27.049216] ? prepare_exit_to_usermode+0x291/0x3b0 [ 27.049227] ? perf_trace_sys_enter+0xb10/0xb10 [ 27.053178] 89 [ 27.057747] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.057761] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 27.059627] fb [ 27.065139] RIP: 0033:0x445bf9 [ 27.065141] Code: e8 [ 27.071203] 48 [ 27.073056] bc e7 ff ff 48 83 [ 27.077035] 83 [ 27.081487] c4 18 c3 0f 1f 80 00 00 [ 27.083374] c7 [ 27.087747] 00 00 48 89 f8 [ 27.091718] 04 [ 27.093580] 48 89 f7 48 [ 27.099130] 48 [ 27.103539] 89 d6 48 89 ca [ 27.105430] 89 [ 27.109471] 4d 89 c2 4d 89 c8 4c [ 27.113368] fa [ 27.117142] 8b 4c 24 08 0f [ 27.119026] 48 [ 27.122890] 05 <48> 3d 01 f0 [ 27.127732] c1 [ 27.129589] ff ff 0f 83 2b [ 27.134515] ea [ 27.139418] 0e fc ff [ 27.141300] 03 [ 27.146286] c3 66 2e [ 27.150953] 48 [ 27.152824] 0f 1f 84 00 00 00 00 [ 27.152841] RSP: 002b:00007f4bb8de5db8 EFLAGS: 00000297 ORIG_RAX: 0000000000000141 [ 27.157686] 83 [ 27.162845] RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 0000000000445bf9 [ 27.162850] RDX: 0000000000000020 RSI: 0000000020000180 RDI: 0000000000000002 [ 27.162859] RBP: 00000000006dac20 R08: 0000000000000000 R09: 0000000000000000 [ 27.164731] ec [ 27.167891] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000000 [ 27.167896] R13: 00007ffe87ada60f R14: 00007f4bb8de69c0 R15: 0000000000000007 [ 27.167907] Modules linked in: [ 27.170308] 08 [ 27.172167] Dumping ftrace buffer: [ 27.172174] (ftrace buffer empty) [ 27.175355] <0f> [ 27.177246] ---[ end trace 711d8ac2879beea8 ]--- [ 27.180926] b6 [ 27.182813] RIP: 0010:do_raw_spin_lock+0x27/0x200 [ 27.185721] 14 [ 27.187602] Code: [ 27.190269] 02 [ 27.192151] 00 [ 27.195084] 48 [ 27.196968] 00 [ 27.200420] 89 [ 27.202302] 00 [ 27.205228] f8 [ 27.207112] 48 [ 27.210232] 83 [ 27.212118] b8 [ 27.215051] e0 [ 27.216934] 00 [ 27.219333] 07 [ 27.221211] 00 [ 27.223616] 83 [ 27.225491] 00 00 [ 27.228952] c0 [ 27.236657] 00 [ 27.238539] 03 [ 27.245813] fc [ 27.253096] 38 [ 27.260388] ff [ 27.262261] d0 7c [ 27.269550] df [ 27.276831] 08 [ 27.280022] 55 [ 27.281903] 84 [ 27.285439] 48 [ 27.289146] d2 [ 27.291203] 89 [ 27.295970] 0f [ 27.297845] e5 41 [ 27.302691] 85 [ 27.304569] 56 [ 27.306711] 7b [ 27.308590] 41 [ 27.312354] 55 [ 27.314236] RSP: 0018:ffff8801c7ccf9c0 EFLAGS: 00010286 [ 27.316114] 41 [ 27.319888] 54 [ 27.321771] RAX: dffffc0000000000 RBX: 0000000000000230 RCX: 0000000000000000 [ 27.323649] 53 [ 27.325532] RDX: 0000000000000046 RSI: 0000000000000000 RDI: 0000000000000234 [ 27.327409] 48 [ 27.329293] RBP: ffff8801c7ccf9e8 R08: 0000000000000001 R09: 0000000000000000 [ 27.331168] 89 [ 27.333051] R10: ffffed003b2434de R11: ffff8801d921a6f3 R12: dffffc0000000000 [ 27.334931] fb [ 27.337094] R13: ffff8801ac7bef80 R14: 0000000000000220 R15: 0000000000000000 [ 27.338969] 48 83 [ 27.340861] FS: 00007f4bb8de6700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 27.342735] c7 [ 27.344621] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.346502] 04 [ 27.348385] CR2: 00007ffdc722ef1c CR3: 00000001b97cf000 CR4: 00000000001406e0 [ 27.350525] 48 [ 27.352408] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.354300] 89 [ 27.356184] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.358072] fa [ 27.359953] Kernel panic - not syncing: Fatal exception in interrupt [ 27.361827] 48 [ 27.364080] Dumping ftrace buffer: [ 27.364084] (ftrace buffer empty) [ 27.364087] Kernel Offset: disabled [ 27.496456] Rebooting in 86400 seconds..