ell server: sshd[?25l[?1c7[1[ 35.121105] audit: type=1800 audit(1555838791.154:34): pid=6936 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 G[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 39.565284] random: sshd: uninitialized urandom read (32 bytes read) [ 40.109818] audit: type=1400 audit(1555838796.164:35): avc: denied { map } for pid=7109 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 40.156378] random: sshd: uninitialized urandom read (32 bytes read) [ 40.764342] random: sshd: uninitialized urandom read (32 bytes read) [ 40.954729] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.113' (ECDSA) to the list of known hosts. [ 46.613339] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 46.743304] audit: type=1400 audit(1555838802.804:36): avc: denied { map } for pid=7121 comm="syz-executor655" path="/root/syz-executor655134643" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 46.755981] FAULT_INJECTION: forcing a failure. [ 46.755981] name failslab, interval 1, probability 0, space 0, times 1 [ 46.782829] CPU: 0 PID: 7122 Comm: syz-executor655 Not tainted 4.14.113 #3 [ 46.789839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.799180] Call Trace: [ 46.801764] dump_stack+0x138/0x19c [ 46.805380] should_fail.cold+0x10f/0x159 [ 46.809532] should_failslab+0xdb/0x130 [ 46.813510] kmem_cache_alloc_trace+0x2ec/0x790 [ 46.818163] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 46.823624] ? sget_userns+0xfe/0xc30 [ 46.827429] ? rcu_read_lock_sched_held+0x110/0x130 [ 46.832434] selinux_sb_alloc_security+0x46/0x220 [ 46.837395] security_sb_alloc+0x73/0xb0 [ 46.841444] ? ns_test_super+0x50/0x50 [ 46.845311] sget_userns+0x196/0xc30 [ 46.849022] ? kill_litter_super+0xa0/0xa0 [ 46.853243] ? kill_litter_super+0xa0/0xa0 [ 46.857470] ? ns_test_super+0x50/0x50 [ 46.861348] ? ns_test_super+0x50/0x50 [ 46.865221] ? kill_litter_super+0xa0/0xa0 [ 46.869436] sget+0xd6/0x120 [ 46.872477] mount_bdev+0xd5/0x370 [ 46.877487] ? jfs_destroy_inode+0x1c0/0x1c0 [ 46.881901] jfs_do_mount+0x35/0x40 [ 46.885513] mount_fs+0x9d/0x2a7 [ 46.888862] vfs_kern_mount.part.0+0x5e/0x3d0 [ 46.893532] do_mount+0x417/0x27d0 [ 46.897064] ? copy_mount_string+0x40/0x40 [ 46.901284] ? memdup_user+0x58/0xa0 [ 46.904979] ? copy_mount_options+0x1fe/0x2f0 [ 46.909472] SyS_mount+0xab/0x120 [ 46.912922] ? copy_mnt_ns+0x8c0/0x8c0 [ 46.916794] do_syscall_64+0x1eb/0x630 [ 46.920663] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.925491] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 46.930660] RIP: 0033:0x441139 [ 46.933828] RSP: 002b:00007ffe21c8a868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 executing program [ 46.941516] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441139 [ 46.948787] RDX: 0000000020000140 RSI: 0000000020000100 RDI: 0000000020000080 [ 46.956045] RBP: 00007ffe21c8a880 R08: 0000000000000000 R09: 0000000000000000 [ 46.963303] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 46.970559] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 [ 46.982305] FAULT_INJECTION: forcing a failure. [ 46.982305] name failslab, interval 1, probability 0, space 0, times 0 [ 46.993695] CPU: 0 PID: 7123 Comm: syz-executor655 Not tainted 4.14.113 #3 [ 47.000695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.010030] Call Trace: [ 47.012645] dump_stack+0x138/0x19c [ 47.016272] should_fail.cold+0x10f/0x159 [ 47.020415] should_failslab+0xdb/0x130 [ 47.024378] __kmalloc+0x2f3/0x7a0 [ 47.027918] ? __list_lru_init+0x6b/0x630 [ 47.032058] __list_lru_init+0x6b/0x630 [ 47.036033] sget_userns+0x503/0xc30 [ 47.039734] ? kill_litter_super+0xa0/0xa0 [ 47.043961] ? ns_test_super+0x50/0x50 [ 47.047829] ? ns_test_super+0x50/0x50 [ 47.051700] ? kill_litter_super+0xa0/0xa0 [ 47.055941] sget+0xd6/0x120 [ 47.058969] mount_bdev+0xd5/0x370 [ 47.062494] ? jfs_destroy_inode+0x1c0/0x1c0 [ 47.066890] jfs_do_mount+0x35/0x40 [ 47.070508] mount_fs+0x9d/0x2a7 [ 47.073888] vfs_kern_mount.part.0+0x5e/0x3d0 [ 47.078459] do_mount+0x417/0x27d0 [ 47.081987] ? copy_mount_string+0x40/0x40 [ 47.086220] ? memdup_user+0x58/0xa0 [ 47.089940] ? copy_mount_options+0x1fe/0x2f0 [ 47.094418] SyS_mount+0xab/0x120 [ 47.097855] ? copy_mnt_ns+0x8c0/0x8c0 [ 47.101730] do_syscall_64+0x1eb/0x630 [ 47.105607] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.110436] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 47.115623] RIP: 0033:0x441139 [ 47.118794] RSP: 002b:00007ffe21c8a868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 47.126482] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441139 [ 47.133732] RDX: 0000000020000140 RSI: 0000000020000100 RDI: 0000000020000080 executing program [ 47.140991] RBP: 00007ffe21c8a880 R08: 0000000000000000 R09: 0000000000000000 [ 47.148244] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 47.155494] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 [ 47.167076] FAULT_INJECTION: forcing a failure. [ 47.167076] name failslab, interval 1, probability 0, space 0, times 0 [ 47.178467] CPU: 1 PID: 7124 Comm: syz-executor655 Not tainted 4.14.113 #3 [ 47.185524] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.194899] Call Trace: [ 47.197494] dump_stack+0x138/0x19c [ 47.201122] should_fail.cold+0x10f/0x159 [ 47.205264] should_failslab+0xdb/0x130 [ 47.209227] __kmalloc+0x2f3/0x7a0 [ 47.212756] ? __list_lru_init+0x6b/0x630 [ 47.216890] __list_lru_init+0x6b/0x630 [ 47.220869] sget_userns+0x4e3/0xc30 [ 47.224564] ? kill_litter_super+0xa0/0xa0 [ 47.228785] ? ns_test_super+0x50/0x50 [ 47.232653] ? ns_test_super+0x50/0x50 [ 47.236520] ? kill_litter_super+0xa0/0xa0 [ 47.240843] sget+0xd6/0x120 [ 47.243876] mount_bdev+0xd5/0x370 [ 47.250476] ? jfs_destroy_inode+0x1c0/0x1c0 [ 47.254896] jfs_do_mount+0x35/0x40 [ 47.258515] mount_fs+0x9d/0x2a7 [ 47.261878] vfs_kern_mount.part.0+0x5e/0x3d0 [ 47.266363] do_mount+0x417/0x27d0 [ 47.269894] ? copy_mount_string+0x40/0x40 [ 47.274127] ? memdup_user+0x58/0xa0 [ 47.277849] ? copy_mount_options+0x1fe/0x2f0 [ 47.282340] SyS_mount+0xab/0x120 [ 47.285794] ? copy_mnt_ns+0x8c0/0x8c0 [ 47.289673] do_syscall_64+0x1eb/0x630 [ 47.293554] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.298400] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 47.303600] RIP: 0033:0x441139 [ 47.306771] RSP: 002b:00007ffe21c8a868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 47.314469] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441139 [ 47.321736] RDX: 0000000020000140 RSI: 0000000020000100 RDI: 0000000020000080 [ 47.329100] RBP: 00007ffe21c8a880 R08: 0000000000000000 R09: 0000000000000000 [ 47.336356] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff executing program [ 47.343629] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 [ 47.355725] FAULT_INJECTION: forcing a failure. [ 47.355725] name failslab, interval 1, probability 0, space 0, times 0 [ 47.367059] CPU: 0 PID: 7125 Comm: syz-executor655 Not tainted 4.14.113 #3 [ 47.374069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.383426] Call Trace: [ 47.386011] dump_stack+0x138/0x19c [ 47.389629] should_fail.cold+0x10f/0x159 [ 47.393781] should_failslab+0xdb/0x130 [ 47.397761] __kmalloc+0x2f3/0x7a0 [ 47.401291] ? __list_lru_init+0x6b/0x630 [ 47.405442] __list_lru_init+0x6b/0x630 [ 47.409404] sget_userns+0x503/0xc30 [ 47.413098] ? kill_litter_super+0xa0/0xa0 [ 47.417323] ? ns_test_super+0x50/0x50 [ 47.421193] ? ns_test_super+0x50/0x50 [ 47.425061] ? kill_litter_super+0xa0/0xa0 [ 47.429274] sget+0xd6/0x120 [ 47.432276] mount_bdev+0xd5/0x370 [ 47.435806] ? jfs_destroy_inode+0x1c0/0x1c0 [ 47.440219] jfs_do_mount+0x35/0x40 [ 47.443841] mount_fs+0x9d/0x2a7 [ 47.447189] vfs_kern_mount.part.0+0x5e/0x3d0 [ 47.451668] do_mount+0x417/0x27d0 [ 47.455191] ? copy_mount_string+0x40/0x40 [ 47.459408] ? memdup_user+0x58/0xa0 [ 47.463104] ? copy_mount_options+0x1fe/0x2f0 [ 47.467593] SyS_mount+0xab/0x120 [ 47.471028] ? copy_mnt_ns+0x8c0/0x8c0 [ 47.475439] do_syscall_64+0x1eb/0x630 [ 47.479308] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.484143] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 47.489338] RIP: 0033:0x441139 executing program [ 47.492553] RSP: 002b:00007ffe21c8a868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 47.500270] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441139 [ 47.507521] RDX: 0000000020000140 RSI: 0000000020000100 RDI: 0000000020000080 [ 47.514776] RBP: 00007ffe21c8a880 R08: 0000000000000000 R09: 0000000000000000 [ 47.522026] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 47.529302] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 [ 47.540408] FAULT_INJECTION: forcing a failure. [ 47.540408] name failslab, interval 1, probability 0, space 0, times 0 [ 47.551701] CPU: 1 PID: 7126 Comm: syz-executor655 Not tainted 4.14.113 #3 [ 47.558736] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.568087] Call Trace: [ 47.570666] dump_stack+0x138/0x19c [ 47.574292] should_fail.cold+0x10f/0x159 [ 47.578440] should_failslab+0xdb/0x130 [ 47.582405] __kmalloc+0x2f3/0x7a0 [ 47.585930] ? __list_lru_init+0x6b/0x630 [ 47.590066] __list_lru_init+0x6b/0x630 [ 47.594053] sget_userns+0x503/0xc30 [ 47.597750] ? kill_litter_super+0xa0/0xa0 [ 47.601968] ? ns_test_super+0x50/0x50 [ 47.605836] ? ns_test_super+0x50/0x50 [ 47.609699] ? kill_litter_super+0xa0/0xa0 [ 47.613911] sget+0xd6/0x120 [ 47.616909] mount_bdev+0xd5/0x370 [ 47.620438] ? jfs_destroy_inode+0x1c0/0x1c0 [ 47.624836] jfs_do_mount+0x35/0x40 [ 47.628447] mount_fs+0x9d/0x2a7 [ 47.631812] vfs_kern_mount.part.0+0x5e/0x3d0 [ 47.636300] do_mount+0x417/0x27d0 [ 47.639846] ? copy_mount_string+0x40/0x40 [ 47.644070] ? memdup_user+0x58/0xa0 [ 47.647763] ? copy_mount_options+0x1fe/0x2f0 [ 47.652241] SyS_mount+0xab/0x120 [ 47.655677] ? copy_mnt_ns+0x8c0/0x8c0 [ 47.659562] do_syscall_64+0x1eb/0x630 [ 47.663444] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.668285] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 47.673542] RIP: 0033:0x441139 [ 47.676715] RSP: 002b:00007ffe21c8a868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 47.684410] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441139 executing program [ 47.691665] RDX: 0000000020000140 RSI: 0000000020000100 RDI: 0000000020000080 [ 47.698921] RBP: 00007ffe21c8a880 R08: 0000000000000000 R09: 0000000000000000 [ 47.706258] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 47.713514] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 [ 47.725171] FAULT_INJECTION: forcing a failure. [ 47.725171] name failslab, interval 1, probability 0, space 0, times 0 [ 47.736490] CPU: 0 PID: 7127 Comm: syz-executor655 Not tainted 4.14.113 #3 [ 47.743523] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.752870] Call Trace: [ 47.755450] dump_stack+0x138/0x19c [ 47.759068] should_fail.cold+0x10f/0x159 [ 47.763250] should_failslab+0xdb/0x130 [ 47.767210] __kmalloc+0x2f3/0x7a0 [ 47.770760] ? __list_lru_init+0x6b/0x630 [ 47.774893] __list_lru_init+0x6b/0x630 [ 47.778858] sget_userns+0x503/0xc30 [ 47.782556] ? kill_litter_super+0xa0/0xa0 [ 47.786823] ? ns_test_super+0x50/0x50 [ 47.790725] ? ns_test_super+0x50/0x50 [ 47.794593] ? kill_litter_super+0xa0/0xa0 [ 47.798808] sget+0xd6/0x120 [ 47.801818] mount_bdev+0xd5/0x370 [ 47.805348] ? jfs_destroy_inode+0x1c0/0x1c0 [ 47.809757] jfs_do_mount+0x35/0x40 [ 47.813368] mount_fs+0x9d/0x2a7 [ 47.816737] vfs_kern_mount.part.0+0x5e/0x3d0 [ 47.821234] do_mount+0x417/0x27d0 [ 47.824775] ? copy_mount_string+0x40/0x40 [ 47.829001] ? memdup_user+0x58/0xa0 [ 47.832723] ? copy_mount_options+0x1fe/0x2f0 [ 47.837236] SyS_mount+0xab/0x120 [ 47.840677] ? copy_mnt_ns+0x8c0/0x8c0 [ 47.844582] do_syscall_64+0x1eb/0x630 [ 47.848469] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.853335] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 47.858518] RIP: 0033:0x441139 [ 47.861707] RSP: 002b:00007ffe21c8a868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 47.869402] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441139 [ 47.876666] RDX: 0000000020000140 RSI: 0000000020000100 RDI: 0000000020000080 [ 47.883934] RBP: 00007ffe21c8a880 R08: 0000000000000000 R09: 0000000000000000 executing program [ 47.891203] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 47.898471] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 [ 47.909624] FAULT_INJECTION: forcing a failure. [ 47.909624] name failslab, interval 1, probability 0, space 0, times 0 [ 47.921157] CPU: 1 PID: 7128 Comm: syz-executor655 Not tainted 4.14.113 #3 [ 47.928166] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.937500] Call Trace: [ 47.940076] dump_stack+0x138/0x19c [ 47.943694] should_fail.cold+0x10f/0x159 [ 47.947830] should_failslab+0xdb/0x130 [ 47.951794] __kmalloc+0x2f3/0x7a0 [ 47.955321] ? __list_lru_init+0x6b/0x630 [ 47.959457] __list_lru_init+0x6b/0x630 [ 47.963424] sget_userns+0x503/0xc30 [ 47.967122] ? kill_litter_super+0xa0/0xa0 [ 47.971343] ? ns_test_super+0x50/0x50 [ 47.975212] ? ns_test_super+0x50/0x50 [ 47.979082] ? kill_litter_super+0xa0/0xa0 [ 47.983318] sget+0xd6/0x120 [ 47.986352] mount_bdev+0xd5/0x370 [ 47.989881] ? jfs_destroy_inode+0x1c0/0x1c0 [ 47.994272] jfs_do_mount+0x35/0x40 [ 47.997883] mount_fs+0x9d/0x2a7 [ 48.001235] vfs_kern_mount.part.0+0x5e/0x3d0 [ 48.005734] do_mount+0x417/0x27d0 [ 48.009265] ? copy_mount_string+0x40/0x40 [ 48.013489] ? memdup_user+0x58/0xa0 [ 48.017187] ? copy_mount_options+0x1fe/0x2f0 [ 48.021666] SyS_mount+0xab/0x120 [ 48.025100] ? copy_mnt_ns+0x8c0/0x8c0 [ 48.028969] do_syscall_64+0x1eb/0x630 [ 48.032837] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.037670] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 48.042860] RIP: 0033:0x441139 executing program [ 48.046028] RSP: 002b:00007ffe21c8a868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 48.053743] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441139 [ 48.060996] RDX: 0000000020000140 RSI: 0000000020000100 RDI: 0000000020000080 [ 48.068244] RBP: 00007ffe21c8a880 R08: 0000000000000000 R09: 0000000000000000 [ 48.075525] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 48.082983] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 [ 48.094648] FAULT_INJECTION: forcing a failure. [ 48.094648] name failslab, interval 1, probability 0, space 0, times 0 [ 48.106198] CPU: 0 PID: 7129 Comm: syz-executor655 Not tainted 4.14.113 #3 [ 48.113204] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.122627] Call Trace: [ 48.125201] dump_stack+0x138/0x19c [ 48.128815] should_fail.cold+0x10f/0x159 [ 48.132950] should_failslab+0xdb/0x130 [ 48.136908] __kmalloc+0x2f3/0x7a0 [ 48.140438] ? __list_lru_init+0x6b/0x630 [ 48.144570] __list_lru_init+0x6b/0x630 [ 48.148526] sget_userns+0x503/0xc30 [ 48.152245] ? kill_litter_super+0xa0/0xa0 [ 48.156465] ? ns_test_super+0x50/0x50 [ 48.160360] ? ns_test_super+0x50/0x50 [ 48.164244] ? kill_litter_super+0xa0/0xa0 [ 48.168459] sget+0xd6/0x120 [ 48.171461] mount_bdev+0xd5/0x370 [ 48.174983] ? jfs_destroy_inode+0x1c0/0x1c0 [ 48.179393] jfs_do_mount+0x35/0x40 [ 48.183002] mount_fs+0x9d/0x2a7 [ 48.186356] vfs_kern_mount.part.0+0x5e/0x3d0 [ 48.190834] do_mount+0x417/0x27d0 [ 48.194386] ? copy_mount_string+0x40/0x40 [ 48.198629] ? memdup_user+0x58/0xa0 [ 48.202336] ? copy_mount_options+0x1fe/0x2f0 [ 48.206819] SyS_mount+0xab/0x120 [ 48.210255] ? copy_mnt_ns+0x8c0/0x8c0 [ 48.214130] do_syscall_64+0x1eb/0x630 [ 48.217999] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.222830] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 48.228002] RIP: 0033:0x441139 [ 48.231192] RSP: 002b:00007ffe21c8a868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 48.238884] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441139 executing program [ 48.246142] RDX: 0000000020000140 RSI: 0000000020000100 RDI: 0000000020000080 [ 48.253432] RBP: 00007ffe21c8a880 R08: 0000000000000000 R09: 0000000000000000 [ 48.260711] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 48.267965] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 [ 48.280423] FAULT_INJECTION: forcing a failure. [ 48.280423] name failslab, interval 1, probability 0, space 0, times 0 [ 48.291877] CPU: 1 PID: 7130 Comm: syz-executor655 Not tainted 4.14.113 #3 [ 48.298965] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.308308] Call Trace: [ 48.310884] dump_stack+0x138/0x19c [ 48.314501] should_fail.cold+0x10f/0x159 [ 48.318637] should_failslab+0xdb/0x130 [ 48.322596] kmem_cache_alloc+0x2d9/0x780 [ 48.326727] ? jfs_alloc_inode+0x60/0x60 [ 48.330770] ? jfs_i_callback+0x30/0x30 [ 48.334758] jfs_alloc_inode+0x1c/0x60 [ 48.338633] alloc_inode+0x66/0x190 [ 48.342245] new_inode_pseudo+0x19/0xf0 [ 48.346208] new_inode+0x1f/0x40 [ 48.349559] jfs_fill_super+0x37f/0xae0 [ 48.353518] ? jfs_destroy_inode+0x1c0/0x1c0 [ 48.357909] ? set_blocksize+0x270/0x300 [ 48.361954] ? ns_test_super+0x50/0x50 [ 48.365831] mount_bdev+0x2c1/0x370 [ 48.369443] ? jfs_destroy_inode+0x1c0/0x1c0 [ 48.373856] jfs_do_mount+0x35/0x40 [ 48.377468] mount_fs+0x9d/0x2a7 [ 48.380834] vfs_kern_mount.part.0+0x5e/0x3d0 [ 48.385315] do_mount+0x417/0x27d0 [ 48.388841] ? copy_mount_string+0x40/0x40 [ 48.393064] ? memdup_user+0x58/0xa0 [ 48.396766] ? copy_mount_options+0x1fe/0x2f0 [ 48.401246] SyS_mount+0xab/0x120 [ 48.404708] ? copy_mnt_ns+0x8c0/0x8c0 [ 48.408582] do_syscall_64+0x1eb/0x630 [ 48.412452] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.417280] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 48.422450] RIP: 0033:0x441139 [ 48.425624] RSP: 002b:00007ffe21c8a868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 48.433316] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441139 [ 48.440566] RDX: 0000000020000140 RSI: 0000000020000100 RDI: 0000000020000080 executing program [ 48.447826] RBP: 00007ffe21c8a880 R08: 0000000000000000 R09: 0000000000000000 [ 48.455080] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 48.462331] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 [ 48.475157] FAULT_INJECTION: forcing a failure. [ 48.475157] name failslab, interval 1, probability 0, space 0, times 0 [ 48.486579] CPU: 0 PID: 7131 Comm: syz-executor655 Not tainted 4.14.113 #3 [ 48.493667] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.503027] Call Trace: [ 48.505608] dump_stack+0x138/0x19c [ 48.509229] should_fail.cold+0x10f/0x159 [ 48.513364] should_failslab+0xdb/0x130 [ 48.517322] __kmalloc+0x2f3/0x7a0 [ 48.520847] ? lock_downgrade+0x6e0/0x6e0 [ 48.524977] ? register_shrinker+0xbd/0x220 [ 48.529283] register_shrinker+0xbd/0x220 [ 48.533415] sget_userns+0x9c5/0xc30 [ 48.537112] ? kill_litter_super+0xa0/0xa0 [ 48.541334] ? ns_test_super+0x50/0x50 [ 48.545204] ? ns_test_super+0x50/0x50 [ 48.549075] ? kill_litter_super+0xa0/0xa0 [ 48.553291] sget+0xd6/0x120 [ 48.556294] mount_bdev+0xd5/0x370 [ 48.559817] ? jfs_destroy_inode+0x1c0/0x1c0 [ 48.564225] jfs_do_mount+0x35/0x40 [ 48.567844] mount_fs+0x9d/0x2a7 [ 48.571212] vfs_kern_mount.part.0+0x5e/0x3d0 [ 48.575711] do_mount+0x417/0x27d0 [ 48.579238] ? copy_mount_string+0x40/0x40 [ 48.583463] ? memdup_user+0x58/0xa0 [ 48.587162] ? copy_mount_options+0x1fe/0x2f0 [ 48.591661] SyS_mount+0xab/0x120 [ 48.595096] ? copy_mnt_ns+0x8c0/0x8c0 [ 48.599006] do_syscall_64+0x1eb/0x630 [ 48.602891] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.607722] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 48.612900] RIP: 0033:0x441139 [ 48.616081] RSP: 002b:00007ffe21c8a868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 48.623770] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441139 [ 48.631020] RDX: 0000000020000140 RSI: 0000000020000100 RDI: 0000000020000080 [ 48.638277] RBP: 00007ffe21c8a880 R08: 0000000000000000 R09: 0000000000000000 [ 48.645545] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 48.652798] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 [ 48.660339] ------------[ cut here ]------------ [ 48.665110] WARNING: CPU: 0 PID: 7131 at fs/super.c:1163 kill_block_super+0xc9/0xf0 [ 48.672913] Kernel panic - not syncing: panic_on_warn set ... [ 48.672913] [ 48.680271] CPU: 0 PID: 7131 Comm: syz-executor655 Not tainted 4.14.113 #3 [ 48.687278] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.696630] Call Trace: [ 48.699207] dump_stack+0x138/0x19c [ 48.702819] panic+0x1f2/0x438 [ 48.706018] ? add_taint.cold+0x16/0x16 [ 48.709980] ? kill_block_super+0xc9/0xf0 [ 48.714113] ? kill_block_super+0xc9/0xf0 [ 48.718244] __warn.cold+0x2f/0x34 [ 48.721799] ? ist_end_non_atomic+0x10/0x10 [ 48.726112] ? kill_block_super+0xc9/0xf0 [ 48.730254] report_bug+0x216/0x254 [ 48.733877] do_error_trap+0x1bb/0x310 [ 48.737748] ? math_error+0x360/0x360 [ 48.741532] ? save_trace+0x290/0x290 [ 48.745322] ? generic_shutdown_super+0x27e/0x370 [ 48.750158] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.755020] do_invalid_op+0x1b/0x20 [ 48.758725] invalid_op+0x1b/0x40 [ 48.762192] RIP: 0010:kill_block_super+0xc9/0xf0 [ 48.766932] RSP: 0018:ffff8880901e7b98 EFLAGS: 00010297 [ 48.772300] RAX: ffff88808cdea4c0 RBX: 0000000000000000 RCX: 1ffff110119bd5a6 [ 48.779578] RDX: 0000000000000000 RSI: ffff88809acc95f8 RDI: ffff88821a337560 [ 48.786838] RBP: ffff8880901e7bb0 R08: ffff88808cdea4c0 R09: 0000000000000001 [ 48.794121] R10: 0000000000000000 R11: ffff88808cdea4c0 R12: ffff88808aee2900 [ 48.801379] R13: ffff88821a3371c0 R14: ffff88808aee2900 R15: dffffc0000000000 [ 48.808650] ? kill_block_super+0xc9/0xf0 [ 48.812781] deactivate_locked_super+0x79/0xe0 [ 48.817366] sget_userns+0x9df/0xc30 [ 48.821061] ? kill_litter_super+0xa0/0xa0 [ 48.825282] ? ns_test_super+0x50/0x50 [ 48.829156] ? ns_test_super+0x50/0x50 [ 48.833048] ? kill_litter_super+0xa0/0xa0 [ 48.837289] sget+0xd6/0x120 [ 48.840301] mount_bdev+0xd5/0x370 [ 48.843822] ? jfs_destroy_inode+0x1c0/0x1c0 [ 48.848335] jfs_do_mount+0x35/0x40 [ 48.851976] mount_fs+0x9d/0x2a7 [ 48.855329] vfs_kern_mount.part.0+0x5e/0x3d0 [ 48.859817] do_mount+0x417/0x27d0 [ 48.863361] ? copy_mount_string+0x40/0x40 [ 48.867590] ? memdup_user+0x58/0xa0 [ 48.871291] ? copy_mount_options+0x1fe/0x2f0 [ 48.875773] SyS_mount+0xab/0x120 [ 48.880623] ? copy_mnt_ns+0x8c0/0x8c0 [ 48.884510] do_syscall_64+0x1eb/0x630 [ 48.888431] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.893291] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 48.898483] RIP: 0033:0x441139 [ 48.901655] RSP: 002b:00007ffe21c8a868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 48.909350] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441139 [ 48.916610] RDX: 0000000020000140 RSI: 0000000020000100 RDI: 0000000020000080 [ 48.923872] RBP: 00007ffe21c8a880 R08: 0000000000000000 R09: 0000000000000000 [ 48.931129] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 48.938396] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 [ 48.946558] Kernel Offset: disabled [ 48.950238] Rebooting in 86400 seconds..