Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 31.969739] audit: type=1800 audit(1541206024.843:33): pid=5683 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 31.998551] audit: type=1800 audit(1541206024.853:34): pid=5683 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=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 33.567505] audit: type=1400 audit(1541206026.443:35): avc: denied { map } for pid=5860 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 '10.128.0.102' (ECDSA) to the list of known hosts. executing program [ 40.216854] audit: type=1400 audit(1541206033.093:36): avc: denied { map } for pid=5874 comm="syz-executor226" path="/root/syz-executor226828036" 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 [ 40.252851] kasan: CONFIG_KASAN_INLINE enabled [ 40.257585] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 40.265058] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 40.271278] CPU: 1 PID: 5874 Comm: syz-executor226 Not tainted 4.19.0+ #95 [ 40.278265] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.287625] RIP: 0010:vb2_vmalloc_put_userptr+0x73/0x250 [ 40.293061] Code: fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 c2 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5e 08 48 8d 7b 09 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 72 01 00 00 [ 40.311943] RSP: 0018:ffff8801c57af3a0 EFLAGS: 00010202 [ 40.317289] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffffffff113e4b8 [ 40.324575] RDX: 0000000000000001 RSI: ffffffff854de1a9 RDI: 0000000000000009 [ 40.331843] RBP: ffff8801c57af3d0 R08: ffff8801c476e380 R09: ffffed00396f8cba [ 40.339095] R10: ffff8801c57af4c8 R11: ffff8801cb7c65d7 R12: ffffc900025d5000 [ 40.346359] R13: 0000000000000000 R14: ffff8801bc913300 R15: ffff8801bc913300 [ 40.353628] FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 40.361850] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.367714] CR2: 0000000001914000 CR3: 000000000946a000 CR4: 00000000001406e0 [ 40.374968] Call Trace: [ 40.377555] __vb2_queue_free+0x4b1/0xa30 [ 40.381684] ? vb2_vmalloc_detach_dmabuf+0x80/0x80 [ 40.386595] ? __vb2_plane_dmabuf_put.isra.5+0x310/0x310 [ 40.392031] vb2_core_queue_release+0x62/0x80 [ 40.396509] _vb2_fop_release+0x1d2/0x2b0 [ 40.400640] vb2_fop_release+0x77/0xc0 [ 40.404539] vivid_fop_release+0x18e/0x440 [ 40.408759] ? vivid_remove+0x460/0x460 [ 40.412714] v4l2_release+0x224/0x3a0 [ 40.416504] ? dev_debug_store+0x140/0x140 [ 40.420721] __fput+0x385/0xa30 [ 40.423992] ? get_max_files+0x20/0x20 [ 40.427863] ? trace_hardirqs_on+0xbd/0x310 [ 40.432170] ? kasan_check_read+0x11/0x20 [ 40.436302] ? task_work_run+0x1af/0x2a0 [ 40.440347] ? trace_hardirqs_off_caller+0x310/0x310 [ 40.445435] ____fput+0x15/0x20 [ 40.448703] task_work_run+0x1e8/0x2a0 [ 40.452616] ? task_work_cancel+0x240/0x240 [ 40.456926] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 40.462445] ? switch_task_namespaces+0x9d/0xd0 [ 40.467098] do_exit+0x1ad6/0x26d0 [ 40.470622] ? mm_update_next_owner+0x990/0x990 [ 40.475273] ? kvfree+0x66/0x70 [ 40.478534] ? video_usercopy+0x79b/0x1760 [ 40.482749] ? v4l_s_fmt+0x990/0x990 [ 40.486446] ? v4l_enumstd+0x70/0x70 [ 40.490139] ? rcu_softirq_qs+0x20/0x20 [ 40.494099] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.499619] ? avc_has_extended_perms+0xab2/0x15a0 [ 40.504537] ? avc_ss_reset+0x190/0x190 [ 40.508499] ? save_stack+0x43/0xd0 [ 40.512109] ? __kasan_slab_free+0x102/0x150 [ 40.516515] ? kasan_slab_free+0xe/0x10 [ 40.520471] ? kmem_cache_free+0x83/0x290 [ 40.524602] ? do_sys_open+0x54d/0x700 [ 40.528470] ? __x64_sys_open+0x7e/0xc0 [ 40.532423] ? do_syscall_64+0x1b9/0x820 [ 40.536470] ? kasan_check_read+0x11/0x20 [ 40.540610] ? perf_trace_sched_process_exec+0x860/0x860 [ 40.546046] ? video_usercopy+0x1760/0x1760 [ 40.550353] ? video_ioctl2+0x2c/0x33 [ 40.554143] ? v4l2_ioctl+0x15c/0x1b0 [ 40.557926] ? video_devdata+0xa0/0xa0 [ 40.561798] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.567335] ? do_vfs_ioctl+0x201/0x1790 [ 40.571382] ? ioctl_preallocate+0x300/0x300 [ 40.575774] ? selinux_file_mprotect+0x620/0x620 [ 40.580531] ? rcu_read_lock_sched_held+0x14f/0x180 [ 40.585530] ? kmem_cache_free+0x21b/0x290 [ 40.589751] ? putname+0xf7/0x130 [ 40.593192] do_group_exit+0x177/0x440 [ 40.597067] ? trace_hardirqs_on+0xbd/0x310 [ 40.601371] ? __ia32_sys_exit+0x50/0x50 [ 40.605430] ? trace_hardirqs_off_caller+0x310/0x310 [ 40.610514] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.616032] ? ksys_ioctl+0x81/0xd0 [ 40.619642] __x64_sys_exit_group+0x3e/0x50 [ 40.623949] do_syscall_64+0x1b9/0x820 [ 40.627823] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 40.633182] ? syscall_return_slowpath+0x5e0/0x5e0 [ 40.638095] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.642932] ? trace_hardirqs_on_caller+0x310/0x310 [ 40.647944] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 40.652939] ? prepare_exit_to_usermode+0x291/0x3b0 [ 40.657977] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.662808] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.667983] RIP: 0033:0x442da8 [ 40.671184] Code: Bad RIP value. [ 40.674529] RSP: 002b:00007ffe6e91b418 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 40.682234] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da8 [ 40.689489] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 40.696741] RBP: 00000000004c2968 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 40.703990] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 40.711242] R13: 00000000006d4180 R14: 0000000000000000 R15: 0000000000000000 [ 40.718495] Modules linked in: [ 40.721878] kobject: 'regulatory.0' (00000000b4edf152): kobject_uevent_env [ 40.725112] ---[ end trace a45047e5152c70da ]--- [ 40.728959] kobject: 'regulatory.0' (00000000b4edf152): fill_kobj_path: path = '/devices/platform/regulatory.0' [ 40.733741] RIP: 0010:vb2_vmalloc_put_userptr+0x73/0x250 [ 40.749466] Code: fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 c2 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5e 08 48 8d 7b 09 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 72 01 00 00 [ 40.768421] RSP: 0018:ffff8801c57af3a0 EFLAGS: 00010202 [ 40.773821] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffffffff113e4b8 [ 40.781107] RDX: 0000000000000001 RSI: ffffffff854de1a9 RDI: 0000000000000009 [ 40.788401] RBP: ffff8801c57af3d0 R08: ffff8801c476e380 R09: ffffed00396f8cba [ 40.795698] R10: ffff8801c57af4c8 R11: ffff8801cb7c65d7 R12: ffffc900025d5000 [ 40.802993] R13: 0000000000000000 R14: ffff8801bc913300 R15: ffff8801bc913300 [ 40.810285] FS: 0000000000a15880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 40.818528] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.824441] CR2: 000000000043e920 CR3: 00000001c8593000 CR4: 00000000001406f0 [ 40.831716] Kernel panic - not syncing: Fatal exception [ 40.837982] Kernel Offset: disabled [ 40.841611] Rebooting in 86400 seconds..