[info] Using makefile-style concurrent boot in runlevel 2. [ 28.231087] audit: type=1800 audit(1545666054.167:21): pid=5878 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 33.808632] sshd (6016) used greatest stack depth: 15720 bytes left Warning: Permanently added '10.128.15.214' (ECDSA) to the list of known hosts. executing program [ 40.605376] kasan: CONFIG_KASAN_INLINE enabled [ 40.610103] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 40.617509] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 40.623755] CPU: 1 PID: 6032 Comm: syz-executor045 Not tainted 4.20.0-rc7-next-20181224 #187 [ 40.632344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.641702] RIP: 0010:transparent_hugepage_enabled+0x8c/0x5e0 [ 40.647567] Code: 80 3c 02 00 0f 85 ae 04 00 00 4c 8b a3 a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 b8 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 91 04 00 00 49 8b bc 24 b8 01 00 00 e8 2d 70 e6 [ 40.666557] RSP: 0018:ffff8881c2237138 EFLAGS: 00010202 [ 40.671897] RAX: dffffc0000000000 RBX: ffff8881c2bdbc60 RCX: 0000000000000000 [ 40.679149] RDX: 0000000000000037 RSI: ffffffff81c8fa1a RDI: 00000000000001b8 [ 40.686413] RBP: ffff8881c2237160 R08: ffffed10383b25ed R09: ffffed10383b25ec [ 40.693693] R10: ffffed10383b25ec R11: ffff8881c1d92f63 R12: 0000000000000000 [ 40.700943] R13: ffff8881c2bdbd00 R14: dffffc0000000000 R15: 0000000000000f5e [ 40.708195] FS: 0000000001a48880(0000) GS:ffff8881dad00000(0000) knlGS:0000000000000000 [ 40.716405] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.722272] CR2: 0000000020b58000 CR3: 00000001c2210000 CR4: 00000000001406e0 [ 40.729534] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.736782] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.744029] Call Trace: [ 40.746617] show_smap+0x167/0x580 [ 40.750146] ? show_numa_map+0xe00/0xe00 [ 40.754191] ? __kmalloc_node+0x4d/0x70 [ 40.758152] traverse+0x344/0x7b0 [ 40.761598] seq_read+0xc76/0x1150 [ 40.765123] ? security_file_permission+0x2bc/0x320 [ 40.770144] ? rw_verify_area+0x118/0x360 [ 40.774288] do_iter_read+0x4bc/0x670 [ 40.778071] vfs_readv+0x175/0x1c0 [ 40.781592] ? compat_rw_copy_check_uvector+0x440/0x440 [ 40.786939] ? aa_file_perm+0x469/0x1060 [ 40.790976] ? lock_downgrade+0x900/0x900 [ 40.795117] ? check_preemption_disabled+0x48/0x280 [ 40.800124] ? kasan_check_read+0x11/0x20 [ 40.804273] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 40.809535] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 40.814534] ? iov_iter_pipe+0xbb/0x2f0 [ 40.818529] default_file_splice_read+0x539/0xb20 [ 40.823389] ? iter_file_splice_write+0x1050/0x1050 [ 40.828416] ? aa_path_link+0x5e0/0x5e0 [ 40.832373] ? graph_lock+0x270/0x270 [ 40.836156] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.841681] ? lockdep_init_map+0x105/0x590 [ 40.845983] ? __mutex_init+0x1f7/0x290 [ 40.849936] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.855456] ? fsnotify+0x50e/0xef0 [ 40.859069] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 40.863985] ? iter_file_splice_write+0x1050/0x1050 [ 40.868981] do_splice_to+0x12e/0x190 [ 40.872765] splice_direct_to_actor+0x31c/0x9d0 [ 40.877420] ? pipe_to_sendpage+0x400/0x400 [ 40.881724] ? do_splice_to+0x190/0x190 [ 40.885677] ? rw_verify_area+0x118/0x360 [ 40.889804] do_splice_direct+0x2d4/0x420 [ 40.893938] ? splice_direct_to_actor+0x9d0/0x9d0 [ 40.898792] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.904308] ? __sb_start_write+0x1b2/0x370 [ 40.908611] do_sendfile+0x62a/0xe50 [ 40.912315] ? do_compat_pwritev64+0x1c0/0x1c0 [ 40.916881] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 40.922396] ? _copy_from_user+0xdf/0x150 [ 40.926528] __x64_sys_sendfile64+0x15d/0x250 [ 40.931022] ? __ia32_sys_sendfile+0x2a0/0x2a0 [ 40.935604] do_syscall_64+0x1b9/0x820 [ 40.939496] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 40.944838] ? syscall_return_slowpath+0x5e0/0x5e0 [ 40.949747] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.954569] ? trace_hardirqs_on_caller+0x310/0x310 [ 40.959566] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 40.964562] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.970095] ? prepare_exit_to_usermode+0x291/0x3b0 [ 40.975099] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.979932] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.985100] RIP: 0033:0x440089 [ 40.988301] 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 5b 14 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 41.007184] RSP: 002b:00007fff3d710a18 EFLAGS: 00000213 ORIG_RAX: 0000000000000028 [ 41.014884] RAX: ffffffffffffffda RBX: 00007fff3d710a20 RCX: 0000000000440089 [ 41.022137] RDX: 0000000020b58000 RSI: 0000000000000003 RDI: 0000000000000003 [ 41.029385] RBP: 00000000006ca018 R08: 0000000000000010 R09: 65732f636f72702f [ 41.036639] R10: 000000000000ffff R11: 0000000000000213 R12: 0000000000401970 [ 41.043898] R13: 0000000000401a00 R14: 0000000000000000 R15: 0000000000000000 [ 41.051150] Modules linked in: [ 41.054446] ---[ end trace faf026efd8795e93 ]--- [ 41.059296] RIP: 0010:transparent_hugepage_enabled+0x8c/0x5e0 [ 41.065167] Code: 80 3c 02 00 0f 85 ae 04 00 00 4c 8b a3 a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 b8 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 91 04 00 00 49 8b bc 24 b8 01 00 00 e8 2d 70 e6 [ 41.084078] RSP: 0018:ffff8881c2237138 EFLAGS: 00010202 [ 41.089459] RAX: dffffc0000000000 RBX: ffff8881c2bdbc60 RCX: 0000000000000000 [ 41.096756] RDX: 0000000000000037 RSI: ffffffff81c8fa1a RDI: 00000000000001b8 [ 41.104018] RBP: ffff8881c2237160 R08: ffffed10383b25ed R09: ffffed10383b25ec [ 41.111298] R10: ffffed10383b25ec R11: ffff8881c1d92f63 R12: 0000000000000000 [ 41.118580] R13: ffff8881c2bdbd00 R14: dffffc0000000000 R15: 0000000000000f5e [ 41.125835] FS: 0000000001a48880(0000) GS:ffff8881dad00000(0000) knlGS:0000000000000000 [ 41.134127] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.140039] CR2: 0000000020b58000 CR3: 00000001c2210000 CR4: 00000000001406e0 [ 41.147343] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.154635] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.161946] Kernel panic - not syncing: Fatal exception [ 41.168289] Kernel Offset: disabled [ 41.171913] Rebooting in 86400 seconds..