[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 19.991646] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 23.807457] random: sshd: uninitialized urandom read (32 bytes read) [ 24.238743] random: sshd: uninitialized urandom read (32 bytes read) [ 25.072901] random: sshd: uninitialized urandom read (32 bytes read) [ 25.229874] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.56' (ECDSA) to the list of known hosts. [ 30.735487] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 30.842512] kasan: CONFIG_KASAN_INLINE enabled [ 30.847192] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.854588] general protection fault: 0000 [#1] SMP KASAN [ 30.860175] CPU: 0 PID: 4524 Comm: syz-executor617 Not tainted 4.18.0-rc4+ #42 [ 30.867515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.876871] RIP: 0010:in_aton+0x3e/0x180 [ 30.880916] 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 [ 30.900078] RSP: 0018:ffff8801a8f171a0 EFLAGS: 00010246 [ 30.905437] RAX: 0000000000000000 RBX: ffff8801acc613a4 RCX: ffffffff87685d49 [ 30.912696] RDX: 0000000000000000 RSI: ffffffff85ff65fd RDI: 0000000000000000 [ 30.919953] RBP: ffff8801a8f171d0 R08: ffff8801ac928040 R09: ffffed00351e2df9 [ 30.927202] R10: ffffed00351e2df9 R11: 0000000000000003 R12: 0000000000000000 [ 30.934453] R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 30.941715] FS: 0000000000000000(0000) GS:ffff8801dae00000(0063) knlGS:000000000961b840 [ 30.949932] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 30.955805] CR2: 0000000020000140 CR3: 00000001ac93c000 CR4: 00000000001406f0 [ 30.963073] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.970322] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.977569] Call Trace: [ 30.980145] rdma_create_trans+0xdbe/0x1ed0 [ 30.984452] ? recv_done+0x570/0x570 [ 30.988148] ? mount_fs+0xae/0x328 [ 30.991668] ? do_mount+0x581/0x30e0 [ 30.995366] ? __ia32_compat_sys_mount+0x5d5/0x860 [ 31.000276] ? do_fast_syscall_32+0x34d/0xfb2 [ 31.004753] ? entry_SYSENTER_compat+0x70/0x7f [ 31.009331] ? find_held_lock+0x36/0x1c0 [ 31.013392] ? kasan_check_read+0x11/0x20 [ 31.017518] ? rcu_is_watching+0x8c/0x150 [ 31.021650] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 31.026737] ? rcu_pm_notify+0xc0/0xc0 [ 31.030614] ? p9_idpool_create+0x42/0x190 [ 31.034839] ? rcu_read_lock_sched_held+0x108/0x120 [ 31.039838] ? kmem_cache_alloc_trace+0x616/0x780 [ 31.044662] ? __lockdep_init_map+0x105/0x590 [ 31.049168] ? lockdep_init_map+0x9/0x10 [ 31.053224] p9_client_create+0x915/0x16c9 [ 31.057443] ? p9_client_read+0xc60/0xc60 [ 31.061574] ? find_held_lock+0x36/0x1c0 [ 31.065624] ? __lockdep_init_map+0x105/0x590 [ 31.070120] ? kasan_check_write+0x14/0x20 [ 31.074335] ? __init_rwsem+0x1cc/0x2a0 [ 31.078312] ? do_raw_write_unlock.cold.8+0x49/0x49 [ 31.083312] ? rcu_read_lock_sched_held+0x108/0x120 [ 31.088322] ? __kmalloc_track_caller+0x5f5/0x760 [ 31.093259] ? save_stack+0xa9/0xd0 [ 31.096870] ? save_stack+0x43/0xd0 [ 31.100478] ? kasan_kmalloc+0xc4/0xe0 [ 31.104347] ? memcpy+0x45/0x50 [ 31.107609] v9fs_session_init+0x21a/0x1a80 [ 31.111923] ? find_held_lock+0x36/0x1c0 [ 31.115969] ? v9fs_show_options+0x7e0/0x7e0 [ 31.120364] ? kasan_check_read+0x11/0x20 [ 31.124500] ? rcu_is_watching+0x8c/0x150 [ 31.128644] ? rcu_pm_notify+0xc0/0xc0 [ 31.132518] ? rcu_pm_notify+0xc0/0xc0 [ 31.136388] ? v9fs_mount+0x61/0x900 [ 31.140091] ? rcu_read_lock_sched_held+0x108/0x120 [ 31.145105] ? kmem_cache_alloc_trace+0x616/0x780 [ 31.149939] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 31.155457] v9fs_mount+0x7c/0x900 [ 31.158981] mount_fs+0xae/0x328 [ 31.162330] vfs_kern_mount.part.34+0xdc/0x4e0 [ 31.166892] ? may_umount+0xb0/0xb0 [ 31.170509] ? _raw_read_unlock+0x22/0x30 [ 31.174637] ? __get_fs_type+0x97/0xc0 [ 31.178511] do_mount+0x581/0x30e0 [ 31.182043] ? copy_mount_string+0x40/0x40 [ 31.186288] ? copy_mount_options+0x5f/0x380 [ 31.190682] ? rcu_read_lock_sched_held+0x108/0x120 [ 31.195940] ? kmem_cache_alloc_trace+0x616/0x780 [ 31.200774] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.206293] ? _copy_from_user+0xdf/0x150 [ 31.210433] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.215960] ? copy_mount_options+0x285/0x380 [ 31.220439] __ia32_compat_sys_mount+0x5d5/0x860 [ 31.225188] do_fast_syscall_32+0x34d/0xfb2 [ 31.229512] ? do_int80_syscall_32+0x890/0x890 [ 31.234074] ? do_syscall_64+0x497/0x820 [ 31.238126] ? syscall_return_slowpath+0x5e0/0x5e0 [ 31.243052] ? syscall_return_slowpath+0x31d/0x5e0 [ 31.247973] ? sysret32_from_system_call+0x5/0x46 [ 31.252806] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.257644] entry_SYSENTER_compat+0x70/0x7f [ 31.262046] RIP: 0023:0xf7f65cb9 [ 31.265390] Code: 55 08 8b 88 64 cd ff ff 8b 98 68 cd ff ff 89 c8 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 1c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 31.284508] RSP: 002b:00000000ffb9d3bc EFLAGS: 00000282 ORIG_RAX: 0000000000000015 [ 31.292199] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000200000c0 [ 31.299466] RDX: 0000000020000340 RSI: 0000000000000000 RDI: 0000000020000180 [ 31.306730] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 31.313982] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 31.321242] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 31.328496] Modules linked in: [ 31.331674] Dumping ftrace buffer: [ 31.335192] (ftrace buffer empty) [ 31.338993] ---[ end trace 5db7de5a7d39bf0a ]--- [ 31.343813] RIP: 0010:in_aton+0x3e/0x180 [ 31.347894] 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 [ 31.367190] RSP: 0018:ffff8801a8f171a0 EFLAGS: 00010246 [ 31.372574] RAX: 0000000000000000 RBX: ffff8801acc613a4 RCX: ffffffff87685d49 [ 31.379849] RDX: 0000000000000000 RSI: ffffffff85ff65fd RDI: 0000000000000000 [ 31.387139] RBP: ffff8801a8f171d0 R08: ffff8801ac928040 R09: ffffed00351e2df9 [ 31.394440] R10: ffffed00351e2df9 R11: 0000000000000003 R12: 0000000000000000 [ 31.401717] R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 31.408999] FS: 0000000000000000(0000) GS:ffff8801dae00000(0063) knlGS:000000000961b840 [ 31.417239] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 31.423125] CR2: 0000000020000140 CR3: 00000001ac93c000 CR4: 00000000001406f0 [ 31.430429] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.437718] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.444994] Kernel panic - not syncing: Fatal exception [ 31.450939] Dumping ftrace buffer: [ 31.455108] (ftrace buffer empty) [ 31.458807] Kernel Offset: disabled [ 31.462414] Rebooting in 86400 seconds..