[ 74.923884][ T26] audit: type=1800 audit(1567650047.105:30): pid=10568 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?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: [ 79.444046][ T26] kauditd_printk_skb: 4 callbacks suppressed [ 79.444059][ T26] audit: type=1400 audit(1567650051.655:35): avc: denied { map } for pid=10746 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 Warning: Permanently added '10.128.0.32' (ECDSA) to the list of known hosts. executing program [ 85.675688][ T26] audit: type=1400 audit(1567650057.885:36): avc: denied { map } for pid=10758 comm="syz-executor631" path="/root/syz-executor631941583" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 85.680445][T10758] L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. [ 85.738906][T10758] kvm [10758]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x20 [ 85.748372][T10758] kvm [10758]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x40 [ 85.757797][T10758] kvm [10758]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x60 [ 85.767152][T10758] kvm [10758]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x80 [ 85.776590][T10758] kvm [10758]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x94 [ 85.786001][T10758] kvm [10758]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x48c [ 85.795449][T10758] kvm [10758]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x4ac [ 85.804914][T10758] kvm [10758]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000005 data 0x1520 [ 85.814475][T10758] kvm [10758]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000006 data 0x15d4 [ 85.824018][T10758] kvm [10758]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000007 data 0x15c4 [ 85.837321][T10758] kasan: CONFIG_KASAN_INLINE enabled [ 85.842645][T10758] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 85.850801][T10758] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 85.857742][T10758] CPU: 1 PID: 10758 Comm: syz-executor631 Not tainted 5.3.0-rc7+ #0 [ 85.865709][T10758] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.875758][T10758] RIP: 0010:__apic_accept_irq+0x46/0xbc0 [ 85.881373][T10758] Code: c0 44 89 45 d4 4c 89 4d c8 e8 96 db 5c 00 49 8d 86 98 00 00 00 48 89 c2 48 89 45 b8 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 65 0a 00 00 4d 8b be 98 00 00 00 0f 1f 44 00 00 [ 85.900954][T10758] RSP: 0018:ffff8880a05df820 EFLAGS: 00010202 [ 85.906996][T10758] RAX: dffffc0000000000 RBX: ffff8880a05df958 RCX: 0000000000000000 [ 85.914956][T10758] RDX: 0000000000000013 RSI: ffffffff811599ba RDI: 0000000000000000 [ 85.922918][T10758] RBP: ffff8880a05df878 R08: 0000000000000000 R09: 0000000000000000 [ 85.930999][T10758] R10: fffff52000bf1070 R11: ffffc90005f88383 R12: 0000000000000000 [ 85.938967][T10758] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88809e34aff0 [ 85.946940][T10758] FS: 0000555555882880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 85.955954][T10758] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.962518][T10758] CR2: 0000000000000000 CR3: 00000000a3942000 CR4: 00000000001426e0 [ 85.970476][T10758] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 85.978446][T10758] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 85.986393][T10758] Call Trace: [ 85.989677][T10758] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 85.995898][T10758] kvm_apic_set_irq+0x10b/0x170 [ 86.000732][T10758] kvm_hv_process_stimers+0xd55/0x1a10 [ 86.006170][T10758] ? kvm_hv_irq_routing_update+0x410/0x410 [ 86.011970][T10758] ? lock_acquire+0x190/0x410 [ 86.016627][T10758] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 86.022868][T10758] ? __kasan_check_write+0x14/0x20 [ 86.027961][T10758] vcpu_enter_guest+0x4d2/0x5e90 [ 86.032881][T10758] ? mark_held_locks+0xf0/0xf0 [ 86.037626][T10758] ? kvm_vcpu_ioctl+0x181/0xfd0 [ 86.042482][T10758] ? handle_emulation_failure+0x4e0/0x4e0 [ 86.048200][T10758] ? lock_acquire+0x190/0x410 [ 86.052864][T10758] ? kvm_check_async_pf_completion+0x2d8/0x440 [ 86.059023][T10758] kvm_arch_vcpu_ioctl_run+0x464/0x1750 [ 86.064555][T10758] ? kvm_arch_vcpu_ioctl_run+0x464/0x1750 [ 86.070259][T10758] kvm_vcpu_ioctl+0x4dc/0xfd0 [ 86.074916][T10758] ? kvm_write_guest_cached+0x40/0x40 [ 86.080268][T10758] ? tomoyo_path_number_perm+0x263/0x520 [ 86.085889][T10758] ? tomoyo_execute_permission+0x4a0/0x4a0 [ 86.091705][T10758] ? put_unused_fd+0x62/0x80 [ 86.096286][T10758] ? rwlock_bug.part.0+0x90/0x90 [ 86.101202][T10758] ? put_unused_fd+0x4f/0x80 [ 86.105770][T10758] ? kvm_write_guest_cached+0x40/0x40 [ 86.111120][T10758] do_vfs_ioctl+0xdb6/0x13e0 [ 86.115721][T10758] ? ioctl_preallocate+0x210/0x210 [ 86.120867][T10758] ? selinux_file_mprotect+0x620/0x620 [ 86.126368][T10758] ? __fget_light+0x1a9/0x230 [ 86.131171][T10758] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 86.137411][T10758] ? tomoyo_file_ioctl+0x23/0x30 [ 86.142400][T10758] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 86.148631][T10758] ? security_file_ioctl+0x8d/0xc0 [ 86.153740][T10758] ksys_ioctl+0xab/0xd0 [ 86.157883][T10758] __x64_sys_ioctl+0x73/0xb0 [ 86.162457][T10758] do_syscall_64+0xfd/0x6a0 [ 86.166997][T10758] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.173016][T10758] RIP: 0033:0x442a19 [ 86.176919][T10758] 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 1b 0c fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 86.196772][T10758] RSP: 002b:00007ffef006cb58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 86.205171][T10758] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000442a19 [ 86.214535][T10758] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 86.222504][T10758] RBP: 00000000006cd018 R08: 00000000004002c8 R09: 00000000004002c8 [ 86.230527][T10758] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000403ac0 [ 86.238481][T10758] R13: 0000000000403b50 R14: 0000000000000000 R15: 0000000000000000 [ 86.246435][T10758] Modules linked in: [ 86.250850][T10758] ---[ end trace 8c16feb08ee496c5 ]--- [ 86.256343][T10758] RIP: 0010:__apic_accept_irq+0x46/0xbc0 [ 86.262115][T10758] Code: c0 44 89 45 d4 4c 89 4d c8 e8 96 db 5c 00 49 8d 86 98 00 00 00 48 89 c2 48 89 45 b8 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 65 0a 00 00 4d 8b be 98 00 00 00 0f 1f 44 00 00 [ 86.281776][T10758] RSP: 0018:ffff8880a05df820 EFLAGS: 00010202 [ 86.287879][T10758] RAX: dffffc0000000000 RBX: ffff8880a05df958 RCX: 0000000000000000 [ 86.295858][T10758] RDX: 0000000000000013 RSI: ffffffff811599ba RDI: 0000000000000000 [ 86.303882][T10758] RBP: ffff8880a05df878 R08: 0000000000000000 R09: 0000000000000000 [ 86.311871][T10758] R10: fffff52000bf1070 R11: ffffc90005f88383 R12: 0000000000000000 [ 86.319999][T10758] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88809e34aff0 [ 86.328003][T10758] FS: 0000555555882880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 86.336925][T10758] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.343545][T10758] CR2: ffffffffff600400 CR3: 00000000a3942000 CR4: 00000000001426e0 [ 86.351565][T10758] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 86.359582][T10758] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 86.367577][T10758] Kernel panic - not syncing: Fatal exception [ 86.375288][T10758] Kernel Offset: disabled [ 86.379639][T10758] Rebooting in 86400 seconds..