[ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.6' (ECDSA) to the list of known hosts. syzkaller login: [ 65.928844][ T6795] FAULT_INJECTION: forcing a failure. [ 65.928844][ T6795] name failslab, interval 1, probability 0, space 0, times 1 [ 65.941473][ T6795] CPU: 1 PID: 6795 Comm: syz-executor223 Not tainted 5.8.0-rc3-next-20200703-syzkaller #0 [ 65.951352][ T6795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.962344][ T6795] Call Trace: [ 65.965621][ T6795] dump_stack+0x18f/0x20d [ 65.969932][ T6795] should_fail.cold+0x5/0x14 [ 65.974502][ T6795] ? tomoyo_init_log+0x1335/0x1e50 [ 65.979597][ T6795] ? tomoyo_init_log+0x1335/0x1e50 [ 65.984697][ T6795] should_failslab+0x5/0xf [ 65.989088][ T6795] __kmalloc+0x372/0x4d0 [ 65.993308][ T6795] tomoyo_init_log+0x1335/0x1e50 [ 65.998238][ T6795] ? common_lsm_audit+0x1b70/0x1b70 [ 66.003417][ T6795] ? path_openat+0x1bb9/0x2750 [ 66.008167][ T6795] ? tomoyo_profile+0x42/0x50 [ 66.012833][ T6795] ? tomoyo_domain_quota_is_ok+0x2d2/0x550 [ 66.018630][ T6795] tomoyo_supervisor+0x32f/0xeb0 [ 66.023658][ T6795] ? tomoyo_profile+0x50/0x50 [ 66.028315][ T6795] ? lock_is_held_type+0xb0/0xe0 [ 66.033237][ T6795] ? lockdep_hardirqs_off+0x66/0xa0 [ 66.038420][ T6795] ? trace_hardirqs_off+0x27/0x210 [ 66.043526][ T6795] ? tomoyo_path_matches_pattern+0x110/0x280 [ 66.049487][ T6795] ? tomoyo_check_path_acl+0x8b/0x1f0 [ 66.054846][ T6795] ? tomoyo_check_acl+0x315/0x410 [ 66.059846][ T6795] tomoyo_path_permission+0x25c/0x360 [ 66.065207][ T6795] tomoyo_check_open_permission+0x30f/0x380 [ 66.071077][ T6795] ? tomoyo_path_number_perm+0x4d0/0x4d0 [ 66.076704][ T6795] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 66.082669][ T6795] ? dput+0x1b7/0xbc0 [ 66.086661][ T6795] ? lock_downgrade+0x820/0x820 [ 66.091486][ T6795] ? do_raw_spin_lock+0x120/0x2b0 [ 66.096490][ T6795] tomoyo_file_open+0xa3/0xd0 [ 66.101145][ T6795] security_file_open+0x52/0x3f0 [ 66.106070][ T6795] ? __mnt_want_write+0x1bc/0x2a0 [ 66.111083][ T6795] do_dentry_open+0x358/0x11b0 [ 66.115826][ T6795] ? may_open+0x1e0/0x3d0 [ 66.120141][ T6795] path_openat+0x1bb9/0x2750 [ 66.124730][ T6795] ? path_lookupat+0x830/0x830 [ 66.129489][ T6795] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 66.135459][ T6795] ? lock_is_held_type+0xb0/0xe0 [ 66.140373][ T6795] do_filp_open+0x17e/0x3c0 [ 66.144855][ T6795] ? may_open_dev+0xf0/0xf0 [ 66.149348][ T6795] ? do_raw_spin_lock+0x120/0x2b0 [ 66.154350][ T6795] ? rwlock_bug.part.0+0x90/0x90 [ 66.159275][ T6795] ? _raw_spin_unlock+0x24/0x40 [ 66.164104][ T6795] ? __alloc_fd+0x28d/0x600 [ 66.168600][ T6795] do_sys_openat2+0x16f/0x3b0 [ 66.173261][ T6795] ? lock_is_held_type+0xb0/0xe0 [ 66.178174][ T6795] ? build_open_flags+0x650/0x650 [ 66.183176][ T6795] ? blkcg_maybe_throttle_current+0x617/0xf00 [ 66.189221][ T6795] __x64_sys_open+0x119/0x1c0 [ 66.193877][ T6795] ? do_sys_open+0x140/0x140 [ 66.198443][ T6795] ? do_syscall_64+0x1c/0xe0 [ 66.203010][ T6795] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 66.208978][ T6795] do_syscall_64+0x60/0xe0 [ 66.213387][ T6795] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 66.219258][ T6795] RIP: 0033:0x401150 [ 66.223133][ T6795] Code: Bad RIP value. executing program [ 66.227174][ T6795] RSP: 002b:00007ffe24394338 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 66.235580][ T6795] RAX: ffffffffffffffda RBX: 00007ffe24394361 RCX: 0000000000401150 [ 66.243550][ T6795] RDX: 00007ffe24394366 RSI: 0000000000080001 RDI: 00000000004a2568 [ 66.251506][ T6795] RBP: 00007ffe24394360 R08: 0000000000000000 R09: 0000000000000001 [ 66.259466][ T6795] R10: 0000000000000032 R11: 0000000000000246 R12: 00000000004a2568 [ 66.267413][ T6795] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 66.282462][ T6796] FAULT_INJECTION: forcing a failure. [ 66.282462][ T6796] name failslab, interval 1, probability 0, space 0, times 0 [ 66.295475][ T6796] CPU: 1 PID: 6796 Comm: syz-executor223 Not tainted 5.8.0-rc3-next-20200703-syzkaller #0 [ 66.307097][ T6796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.317145][ T6796] Call Trace: [ 66.320441][ T6796] dump_stack+0x18f/0x20d [ 66.324777][ T6796] should_fail.cold+0x5/0x14 [ 66.329390][ T6796] ? tomoyo_supervisor+0xcc5/0xeb0 [ 66.334706][ T6796] ? tomoyo_supervisor+0xcc5/0xeb0 [ 66.339930][ T6796] should_failslab+0x5/0xf [ 66.344336][ T6796] __kmalloc+0x372/0x4d0 [ 66.348737][ T6796] ? tomoyo_domain_quota_is_ok+0x2d2/0x550 [ 66.355428][ T6796] tomoyo_supervisor+0xcc5/0xeb0 [ 66.361013][ T6796] ? tomoyo_profile+0x50/0x50 [ 66.365889][ T6796] ? pointer+0x970/0x970 [ 66.370328][ T6796] tomoyo_path_number_perm+0x3ed/0x4d0 [ 66.375785][ T6796] ? tomoyo_execute_permission+0x470/0x470 [ 66.381580][ T6796] ? find_held_lock+0x2d/0x110 [ 66.386452][ T6796] ? get_pid_task+0x116/0x200 [ 66.391534][ T6796] ? lock_acquire+0x1f1/0xad0 [ 66.396340][ T6796] ? fsnotify_first_mark+0x1f0/0x1f0 [ 66.403543][ T6796] ? __sb_end_write+0xf8/0x1d0 [ 66.408589][ T6796] ? vfs_write+0x161/0x5d0 [ 66.413632][ T6796] security_file_ioctl+0x50/0xb0 [ 66.418831][ T6796] ksys_ioctl+0x50/0x180 [ 66.423187][ T6796] __x64_sys_ioctl+0x6f/0xb0 [ 66.427761][ T6796] ? lockdep_hardirqs_on+0x6a/0xe0 [ 66.436584][ T6796] do_syscall_64+0x60/0xe0 [ 66.441872][ T6796] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 66.448191][ T6796] RIP: 0033:0x441229 [ 66.452231][ T6796] Code: Bad RIP value. [ 66.456859][ T6796] RSP: 002b:00007ffe24394848 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 66.469759][ T6796] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441229 executing program [ 66.477803][ T6796] RDX: 0000000020000000 RSI: 0000000040087543 RDI: 0000000000000004 [ 66.486980][ T6796] RBP: 00000000006cc018 R08: 0000000000000001 R09: 00000000004002c8 [ 66.495897][ T6796] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402170 [ 66.504659][ T6796] R13: 0000000000402200 R14: 0000000000000000 R15: 0000000000000000 [ 66.520397][ T6797] FAULT_INJECTION: forcing a failure. [ 66.520397][ T6797] name failslab, interval 1, probability 0, space 0, times 0 [ 66.534583][ T6797] CPU: 1 PID: 6797 Comm: syz-executor223 Not tainted 5.8.0-rc3-next-20200703-syzkaller #0 [ 66.544753][ T6797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.555462][ T6797] Call Trace: [ 66.558744][ T6797] dump_stack+0x18f/0x20d [ 66.563067][ T6797] should_fail.cold+0x5/0x14 [ 66.567645][ T6797] should_failslab+0x5/0xf [ 66.572055][ T6797] kmem_cache_alloc_trace+0x350/0x480 [ 66.577407][ T6797] ? __might_fault+0xef/0x1d0 [ 66.582064][ T6797] udmabuf_create+0xce/0xe30 [ 66.586654][ T6797] ? lock_downgrade+0x820/0x820 [ 66.591491][ T6797] ? end_cpu_udmabuf+0x270/0x270 [ 66.596421][ T6797] ? __might_fault+0x190/0x1d0 [ 66.601163][ T6797] ? _copy_from_user+0x138/0x190 [ 66.606080][ T6797] udmabuf_ioctl+0x265/0x2c0 [ 66.610652][ T6797] ? udmabuf_create+0xe30/0xe30 [ 66.615486][ T6797] ? __sb_end_write+0xf8/0x1d0 [ 66.620227][ T6797] ? vfs_write+0x161/0x5d0 [ 66.624637][ T6797] ? udmabuf_create+0xe30/0xe30 [ 66.629489][ T6797] ksys_ioctl+0x11a/0x180 [ 66.633810][ T6797] __x64_sys_ioctl+0x6f/0xb0 [ 66.638395][ T6797] ? lockdep_hardirqs_on+0x6a/0xe0 [ 66.643503][ T6797] do_syscall_64+0x60/0xe0 [ 66.647912][ T6797] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 66.653808][ T6797] RIP: 0033:0x441229 [ 66.657679][ T6797] Code: Bad RIP value. [ 66.661730][ T6797] RSP: 002b:00007ffe24394848 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 66.670279][ T6797] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441229 executing program [ 66.678251][ T6797] RDX: 0000000020000000 RSI: 0000000040087543 RDI: 0000000000000004 [ 66.686214][ T6797] RBP: 00000000000102e7 R08: 0000000000000001 R09: 00000000004002c8 [ 66.694170][ T6797] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402170 [ 66.702133][ T6797] R13: 0000000000402200 R14: 0000000000000000 R15: 0000000000000000 [ 66.716127][ T6798] FAULT_INJECTION: forcing a failure. [ 66.716127][ T6798] name failslab, interval 1, probability 0, space 0, times 0 [ 66.728827][ T6798] CPU: 1 PID: 6798 Comm: syz-executor223 Not tainted 5.8.0-rc3-next-20200703-syzkaller #0 [ 66.738721][ T6798] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.748764][ T6798] Call Trace: [ 66.752046][ T6798] dump_stack+0x18f/0x20d [ 66.756373][ T6798] should_fail.cold+0x5/0x14 [ 66.760946][ T6798] should_failslab+0x5/0xf [ 66.765357][ T6798] kmem_cache_alloc+0x3be/0x550 [ 66.770214][ T6798] __alloc_file+0x21/0x350 [ 66.774627][ T6798] alloc_empty_file+0x6d/0x170 [ 66.779383][ T6798] alloc_file+0x5e/0x5a0 [ 66.783606][ T6798] alloc_file_pseudo+0x165/0x250 [ 66.788538][ T6798] ? alloc_file+0x5a0/0x5a0 [ 66.793032][ T6798] dma_buf_export+0x5d8/0xae0 [ 66.797693][ T6798] udmabuf_create+0xb9d/0xe30 [ 66.802363][ T6798] ? lock_downgrade+0x820/0x820 [ 66.807193][ T6798] ? end_cpu_udmabuf+0x270/0x270 [ 66.812108][ T6798] ? __might_fault+0x190/0x1d0 [ 66.816849][ T6798] ? _copy_from_user+0x138/0x190 [ 66.821792][ T6798] udmabuf_ioctl+0x265/0x2c0 [ 66.826364][ T6798] ? udmabuf_create+0xe30/0xe30 [ 66.831284][ T6798] ? __sb_end_write+0xf8/0x1d0 [ 66.836024][ T6798] ? vfs_write+0x161/0x5d0 [ 66.840439][ T6798] ? udmabuf_create+0xe30/0xe30 [ 66.845327][ T6798] ksys_ioctl+0x11a/0x180 [ 66.849647][ T6798] __x64_sys_ioctl+0x6f/0xb0 [ 66.854223][ T6798] ? lockdep_hardirqs_on+0x6a/0xe0 [ 66.859325][ T6798] do_syscall_64+0x60/0xe0 [ 66.863730][ T6798] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 66.869603][ T6798] RIP: 0033:0x441229 [ 66.873478][ T6798] Code: Bad RIP value. [ 66.877541][ T6798] RSP: 002b:00007ffe24394848 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 66.885931][ T6798] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441229 [ 66.893885][ T6798] RDX: 0000000020000000 RSI: 0000000040087543 RDI: 0000000000000004 [ 66.901833][ T6798] RBP: 00000000000103d6 R08: 0000000000000001 R09: 00000000004002c8 [ 66.909779][ T6798] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402170 [ 66.917725][ T6798] R13: 0000000000402200 R14: 0000000000000000 R15: 0000000000000000 [ 66.926165][ T6798] general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#1] PREEMPT SMP KASAN [ 66.937883][ T6798] KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf] [ 66.946281][ T6798] CPU: 1 PID: 6798 Comm: syz-executor223 Not tainted 5.8.0-rc3-next-20200703-syzkaller #0 [ 66.956147][ T6798] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.966187][ T6798] RIP: 0010:dma_buf_release+0x51/0x3f0 [ 66.971630][ T6798] Code: 03 80 3c 02 00 0f 85 30 03 00 00 48 8b ad e8 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bd b8 00 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e e3 02 00 00 8b 9d b8 00 00 00 [ 66.991209][ T6798] RSP: 0018:ffffc90001b87aa0 EFLAGS: 00010206 [ 66.997248][ T6798] RAX: dffffc0000000000 RBX: ffffffff847e30a0 RCX: ffffffff81c58a83 [ 67.005194][ T6798] RDX: 0000000000000017 RSI: ffffffff847e30b0 RDI: 00000000000000b8 [ 67.013138][ T6798] RBP: 0000000000000000 R08: 0000000000000001 R09: ffff88808a53c80b [ 67.021102][ T6798] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808b7dc550 [ 67.029058][ T6798] R13: ffff88808b7dc4d8 R14: ffff88808b7dc520 R15: 0000000000000000 [ 67.037005][ T6798] FS: 0000000001f09880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 67.045903][ T6798] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.052473][ T6798] CR2: 00000000006cc090 CR3: 00000000a87d2000 CR4: 00000000001506e0 [ 67.060433][ T6798] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.068394][ T6798] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.076345][ T6798] Call Trace: [ 67.079633][ T6798] ? dma_buf_mmap+0x370/0x370 [ 67.084299][ T6798] __dentry_kill+0x42b/0x640 [ 67.088863][ T6798] ? dput+0x35/0xbc0 [ 67.092736][ T6798] ? dput+0x35/0xbc0 [ 67.096604][ T6798] dput+0x725/0xbc0 [ 67.100398][ T6798] ? alloc_file+0x3c9/0x5a0 [ 67.104885][ T6798] path_put+0x2d/0x60 [ 67.108851][ T6798] alloc_file_pseudo+0x20d/0x250 [ 67.113779][ T6798] ? alloc_file+0x5a0/0x5a0 [ 67.118274][ T6798] dma_buf_export+0x5d8/0xae0 [ 67.122927][ T6798] udmabuf_create+0xb9d/0xe30 [ 67.127580][ T6798] ? lock_downgrade+0x820/0x820 [ 67.132405][ T6798] ? end_cpu_udmabuf+0x270/0x270 [ 67.137318][ T6798] ? __might_fault+0x190/0x1d0 [ 67.142072][ T6798] ? _copy_from_user+0x138/0x190 [ 67.147006][ T6798] udmabuf_ioctl+0x265/0x2c0 [ 67.151587][ T6798] ? udmabuf_create+0xe30/0xe30 [ 67.156416][ T6798] ? __sb_end_write+0xf8/0x1d0 [ 67.161166][ T6798] ? vfs_write+0x161/0x5d0 [ 67.165577][ T6798] ? udmabuf_create+0xe30/0xe30 [ 67.170402][ T6798] ksys_ioctl+0x11a/0x180 [ 67.174706][ T6798] __x64_sys_ioctl+0x6f/0xb0 [ 67.179328][ T6798] ? lockdep_hardirqs_on+0x6a/0xe0 [ 67.184416][ T6798] do_syscall_64+0x60/0xe0 [ 67.188810][ T6798] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.194702][ T6798] RIP: 0033:0x441229 [ 67.198566][ T6798] Code: Bad RIP value. [ 67.202608][ T6798] RSP: 002b:00007ffe24394848 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 67.211000][ T6798] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441229 [ 67.218947][ T6798] RDX: 0000000020000000 RSI: 0000000040087543 RDI: 0000000000000004 [ 67.226892][ T6798] RBP: 00000000000103d6 R08: 0000000000000001 R09: 00000000004002c8 [ 67.234847][ T6798] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402170 [ 67.242793][ T6798] R13: 0000000000402200 R14: 0000000000000000 R15: 0000000000000000 [ 67.250926][ T6798] Modules linked in: [ 67.255118][ T6798] ---[ end trace 1a68562902844a66 ]--- [ 67.260593][ T6798] RIP: 0010:dma_buf_release+0x51/0x3f0 [ 67.266099][ T6798] Code: 03 80 3c 02 00 0f 85 30 03 00 00 48 8b ad e8 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bd b8 00 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e e3 02 00 00 8b 9d b8 00 00 00 [ 67.285780][ T6798] RSP: 0018:ffffc90001b87aa0 EFLAGS: 00010206 [ 67.291837][ T6798] RAX: dffffc0000000000 RBX: ffffffff847e30a0 RCX: ffffffff81c58a83 [ 67.299839][ T6798] RDX: 0000000000000017 RSI: ffffffff847e30b0 RDI: 00000000000000b8 [ 67.307871][ T6798] RBP: 0000000000000000 R08: 0000000000000001 R09: ffff88808a53c80b [ 67.316044][ T6798] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808b7dc550 [ 67.324056][ T6798] R13: ffff88808b7dc4d8 R14: ffff88808b7dc520 R15: 0000000000000000 [ 67.332021][ T6798] FS: 0000000001f09880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 67.340992][ T6798] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.347622][ T6798] CR2: 00000000006cc090 CR3: 00000000a87d2000 CR4: 00000000001506e0 [ 67.355655][ T6798] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.363665][ T6798] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.371692][ T6798] Kernel panic - not syncing: Fatal exception [ 67.378797][ T6798] Kernel Offset: disabled [ 67.383107][ T6798] Rebooting in 86400 seconds..