[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 19.708260] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. [ 20.922786] random: sshd: uninitialized urandom read (32 bytes read) Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 21.355284] random: sshd: uninitialized urandom read (32 bytes read) [ 22.281433] random: sshd: uninitialized urandom read (32 bytes read) [ 22.446139] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.38' (ECDSA) to the list of known hosts. [ 28.024930] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 28.119944] kasan: CONFIG_KASAN_INLINE enabled [ 28.124636] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 28.132094] general protection fault: 0000 [#1] SMP KASAN [ 28.137631] CPU: 1 PID: 4510 Comm: syz-executor826 Not tainted 4.18.0-rc4+ #141 [ 28.145068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.154431] RIP: 0010:in_aton+0x3e/0x180 [ 28.158468] Code: f6 41 55 41 54 49 89 fc 53 48 83 ec 08 c7 45 d4 00 00 00 00 e8 a3 a5 7c fb 4c 89 e0 4c 89 e2 c1 65 d4 08 48 c1 e8 03 83 e2 07 <42> 0f b6 04 38 38 d0 7f 08 84 c0 0f 85 1a 01 00 00 41 0f be 1c 24 [ 28.177594] RSP: 0018:ffff8801b26a71e0 EFLAGS: 00010246 [ 28.182949] RAX: 0000000000000000 RBX: ffff8801b27bfe24 RCX: ffffffff87685d49 [ 28.190204] RDX: 0000000000000000 RSI: ffffffff85ff65fd RDI: 0000000000000000 [ 28.197462] RBP: ffff8801b26a7210 R08: ffff8801b20943c0 R09: ffffed00364d4e01 [ 28.204717] R10: ffffed00364d4e01 R11: 0000000000000003 R12: 0000000000000000 [ 28.211970] R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 28.219225] FS: 0000000000eb8880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 28.227433] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.233305] CR2: 0000000000455060 CR3: 00000001b3231000 CR4: 00000000001406e0 [ 28.240557] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.247816] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.255067] Call Trace: [ 28.257649] rdma_create_trans+0xdbe/0x1ed0 [ 28.261950] ? recv_done+0x570/0x570 [ 28.265648] ? mount_fs+0xae/0x328 [ 28.269172] ? do_mount+0x581/0x30e0 [ 28.272867] ? ksys_mount+0x12d/0x140 [ 28.276646] ? __x64_sys_mount+0xbe/0x150 [ 28.280775] ? do_syscall_64+0x1b9/0x820 [ 28.284815] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 28.290170] ? find_held_lock+0x36/0x1c0 [ 28.294221] ? kasan_check_read+0x11/0x20 [ 28.298345] ? rcu_is_watching+0x8c/0x150 [ 28.302485] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 28.307569] ? rcu_pm_notify+0xc0/0xc0 [ 28.311442] ? p9_idpool_create+0x42/0x190 [ 28.315658] ? rcu_read_lock_sched_held+0x108/0x120 [ 28.320658] ? kmem_cache_alloc_trace+0x616/0x780 [ 28.325485] ? __lockdep_init_map+0x105/0x590 [ 28.329960] ? lockdep_init_map+0x9/0x10 [ 28.334009] p9_client_create+0x915/0x16c9 [ 28.338252] ? p9_client_read+0xc60/0xc60 [ 28.342381] ? find_held_lock+0x36/0x1c0 [ 28.346442] ? __lockdep_init_map+0x105/0x590 [ 28.350924] ? kasan_check_write+0x14/0x20 [ 28.355151] ? __init_rwsem+0x1cc/0x2a0 [ 28.359116] ? do_raw_write_unlock.cold.8+0x49/0x49 [ 28.364202] ? rcu_read_lock_sched_held+0x108/0x120 [ 28.369197] ? __kmalloc_track_caller+0x5f5/0x760 [ 28.374035] ? save_stack+0xa9/0xd0 [ 28.377659] ? save_stack+0x43/0xd0 [ 28.381272] ? kasan_kmalloc+0xc4/0xe0 [ 28.385340] ? kmem_cache_alloc_trace+0x152/0x780 [ 28.390163] ? memcpy+0x45/0x50 [ 28.393431] v9fs_session_init+0x21a/0x1a80 [ 28.397742] ? find_held_lock+0x36/0x1c0 [ 28.401784] ? v9fs_show_options+0x7e0/0x7e0 [ 28.406173] ? kasan_check_read+0x11/0x20 [ 28.410733] ? rcu_is_watching+0x8c/0x150 [ 28.414859] ? rcu_pm_notify+0xc0/0xc0 [ 28.418734] ? v9fs_mount+0x61/0x900 [ 28.422428] ? rcu_read_lock_sched_held+0x108/0x120 [ 28.427424] ? kmem_cache_alloc_trace+0x616/0x780 [ 28.432249] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 28.437766] v9fs_mount+0x7c/0x900 [ 28.441290] mount_fs+0xae/0x328 [ 28.444986] vfs_kern_mount.part.34+0xdc/0x4e0 [ 28.449551] ? may_umount+0xb0/0xb0 [ 28.453162] ? _raw_read_unlock+0x22/0x30 [ 28.457293] ? __get_fs_type+0x97/0xc0 [ 28.461164] do_mount+0x581/0x30e0 [ 28.464697] ? copy_mount_string+0x40/0x40 [ 28.468918] ? copy_mount_options+0x5f/0x380 [ 28.473317] ? rcu_read_lock_sched_held+0x108/0x120 [ 28.478318] ? kmem_cache_alloc_trace+0x616/0x780 [ 28.483157] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 28.488686] ? _copy_from_user+0xdf/0x150 [ 28.492818] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 28.498344] ? copy_mount_options+0x285/0x380 [ 28.502823] ksys_mount+0x12d/0x140 [ 28.506433] __x64_sys_mount+0xbe/0x150 [ 28.510392] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 28.515394] do_syscall_64+0x1b9/0x820 [ 28.519267] ? syscall_return_slowpath+0x5e0/0x5e0 [ 28.524182] ? syscall_return_slowpath+0x31d/0x5e0 [ 28.529100] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 28.534455] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.539282] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 28.544452] RIP: 0033:0x440279 [ 28.547629] 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 28.566749] RSP: 002b:00007ffc47106a78 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 28.574451] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 0000000000440279 [ 28.581716] RDX: 0000000020000340 RSI: 00000000200000c0 RDI: 0000000000000000 [ 28.588979] RBP: 00000000006ca018 R08: 0000000020000180 R09: 00000000004002c8 [ 28.596236] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000401b00 [ 28.603490] R13: 0000000000401b90 R14: 0000000000000000 R15: 0000000000000000 [ 28.610752] Modules linked in: [ 28.613929] Dumping ftrace buffer: [ 28.617445] (ftrace buffer empty) [ 28.621216] ---[ end trace dd301f6dbec89845 ]--- [ 28.626014] RIP: 0010:in_aton+0x3e/0x180 [ 28.630098] Code: f6 41 55 41 54 49 89 fc 53 48 83 ec 08 c7 45 d4 00 00 00 00 e8 a3 a5 7c fb 4c 89 e0 4c 89 e2 c1 65 d4 08 48 c1 e8 03 83 e2 07 <42> 0f b6 04 38 38 d0 7f 08 84 c0 0f 85 1a 01 00 00 41 0f be 1c 24 [ 28.649249] RSP: 0018:ffff8801b26a71e0 EFLAGS: 00010246 [ 28.654626] RAX: 0000000000000000 RBX: ffff8801b27bfe24 RCX: ffffffff87685d49 [ 28.661904] RDX: 0000000000000000 RSI: ffffffff85ff65fd RDI: 0000000000000000 [ 28.669183] RBP: ffff8801b26a7210 R08: ffff8801b20943c0 R09: ffffed00364d4e01 [ 28.676469] R10: ffffed00364d4e01 R11: 0000000000000003 R12: 0000000000000000 [ 28.683743] R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 28.691059] FS: 0000000000eb8880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 28.699289] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.705173] CR2: 0000000000455060 CR3: 00000001b3231000 CR4: 00000000001406e0 [ 28.712450] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.719733] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.727028] Kernel panic - not syncing: Fatal exception [ 28.732844] Dumping ftrace buffer: [ 28.736375] (ftrace buffer empty) [ 28.740070] Kernel Offset: disabled [ 28.743677] Rebooting in 86400 seconds..