[....] 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. [ 38.719642][ T26] audit: type=1800 audit(1557290857.117:33): pid=7535 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 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 42.964990][ T26] kauditd_printk_skb: 1 callbacks suppressed [ 42.965002][ T26] audit: type=1400 audit(1557290861.367:35): avc: denied { map } for pid=7710 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 '10.128.1.59' (ECDSA) to the list of known hosts. [ 804.395577][ T26] audit: type=1400 audit(1557291622.797:36): avc: denied { map } for pid=7722 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2019/05/08 05:00:23 parsed 1 programs [ 805.397582][ T26] audit: type=1400 audit(1557291623.797:37): avc: denied { map } for pid=7722 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=80 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 2019/05/08 05:00:25 executed programs: 0 [ 807.323870][ T7736] IPVS: ftp: loaded support on port[0] = 21 [ 807.388986][ T7736] chnl_net:caif_netlink_parms(): no params data found [ 807.421435][ T7736] bridge0: port 1(bridge_slave_0) entered blocking state [ 807.428939][ T7736] bridge0: port 1(bridge_slave_0) entered disabled state [ 807.437126][ T7736] device bridge_slave_0 entered promiscuous mode [ 807.445138][ T7736] bridge0: port 2(bridge_slave_1) entered blocking state [ 807.452309][ T7736] bridge0: port 2(bridge_slave_1) entered disabled state [ 807.459826][ T7736] device bridge_slave_1 entered promiscuous mode [ 807.476951][ T7736] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 807.486681][ T7736] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 807.503973][ T7736] team0: Port device team_slave_0 added [ 807.510828][ T7736] team0: Port device team_slave_1 added [ 807.575256][ T7736] device hsr_slave_0 entered promiscuous mode [ 807.622208][ T7736] device hsr_slave_1 entered promiscuous mode [ 807.669338][ T7736] bridge0: port 2(bridge_slave_1) entered blocking state [ 807.679321][ T7736] bridge0: port 2(bridge_slave_1) entered forwarding state [ 807.687059][ T7736] bridge0: port 1(bridge_slave_0) entered blocking state [ 807.694117][ T7736] bridge0: port 1(bridge_slave_0) entered forwarding state [ 807.726591][ T7736] 8021q: adding VLAN 0 to HW filter on device bond0 [ 807.739250][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 807.748822][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 807.757129][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 807.765961][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 807.777464][ T7736] 8021q: adding VLAN 0 to HW filter on device team0 [ 807.788044][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 807.796465][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 807.803595][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 807.813387][ T7741] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 807.821669][ T7741] bridge0: port 2(bridge_slave_1) entered blocking state [ 807.828781][ T7741] bridge0: port 2(bridge_slave_1) entered forwarding state [ 807.845378][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 807.854502][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 807.866113][ T7741] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 807.879564][ T7736] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 807.890134][ T7736] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 807.903442][ T7741] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 807.911756][ T7741] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 807.920201][ T7741] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 807.935954][ T7736] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 807.947655][ T26] audit: type=1400 audit(1557291626.347:38): avc: denied { associate } for pid=7736 comm="syz-executor.0" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 808.004069][ T26] audit: type=1400 audit(1557291626.407:39): avc: denied { prog_load } for pid=7745 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 [ 808.033320][ T26] audit: type=1400 audit(1557291626.437:40): avc: denied { prog_run } for pid=7745 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 2019/05/08 05:00:30 executed programs: 208 2019/05/08 05:00:35 executed programs: 465 2019/05/08 05:00:40 executed programs: 716 2019/05/08 05:00:45 executed programs: 974 2019/05/08 05:00:50 executed programs: 1230 2019/05/08 05:00:55 executed programs: 1482 2019/05/08 05:01:00 executed programs: 1736 [ 845.672761][ T7738] WARNING: CPU: 1 PID: 7738 at kernel/bpf/core.c:853 bpf_jit_free+0x157/0x1b0 [ 845.681799][ T7738] Kernel panic - not syncing: panic_on_warn set ... [ 845.688124][ T3878] kobject: 'loop0' (000000004cbbb10b): kobject_uevent_env [ 845.688383][ T7738] CPU: 1 PID: 7738 Comm: kworker/1:2 Not tainted 5.1.0+ #2 [ 845.695717][ T3878] kobject: 'loop0' (000000004cbbb10b): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 845.702714][ T7738] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 845.702735][ T7738] Workqueue: events bpf_prog_free_deferred [ 845.702743][ T7738] Call Trace: [ 845.702848][ T7738] dump_stack+0x172/0x1f0 [ 845.702867][ T7738] ? bpf_jit_free+0xb0/0x1b0 [ 845.741040][ T7738] panic+0x2cb/0x65c [ 845.744920][ T7738] ? __warn_printk+0xf3/0xf3 [ 845.749495][ T7738] ? bpf_jit_free+0x157/0x1b0 [ 845.754171][ T7738] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 845.760393][ T7738] ? __warn.cold+0x5/0x45 [ 845.764701][ T7738] ? __warn+0xe8/0x1d0 [ 845.768751][ T7738] ? bpf_jit_free+0x157/0x1b0 [ 845.773409][ T7738] __warn.cold+0x20/0x45 [ 845.777639][ T7738] ? bpf_jit_free+0x157/0x1b0 [ 845.782303][ T7738] report_bug+0x263/0x2b0 [ 845.786663][ T7738] do_error_trap+0x11b/0x200 [ 845.791238][ T7738] do_invalid_op+0x37/0x50 [ 845.795643][ T7738] ? bpf_jit_free+0x157/0x1b0 [ 845.800352][ T7738] invalid_op+0x14/0x20 [ 845.804490][ T7738] RIP: 0010:bpf_jit_free+0x157/0x1b0 [ 845.809754][ T7738] Code: 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 5d 48 b8 00 02 00 00 00 00 ad de 48 39 43 70 0f 84 05 ff ff ff e8 59 c9 f4 ff <0f> 0b e9 f9 fe ff ff e8 dd c6 2c 00 e9 d9 fe ff ff 48 89 7d e0 e8 [ 845.829349][ T7738] RSP: 0018:ffff888097647cb8 EFLAGS: 00010293 [ 845.835392][ T7738] RAX: ffff888098bbe640 RBX: ffff88808af55cc0 RCX: ffffffff817a9c3d [ 845.843363][ T7738] RDX: 0000000000000000 RSI: ffffffff817baba7 RDI: ffff88808af55d30 [ 845.851316][ T7738] RBP: ffff888097647cd8 R08: 1ffffffff1487a88 R09: fffffbfff1487a89 [ 845.859281][ T7738] R10: fffffbfff1487a88 R11: ffffffff8a43d447 R12: ffffc90001937000 [ 845.867245][ T7738] R13: ffff88808af55d28 R14: ffff8880a673ce00 R15: ffff8880ae934840 [ 845.875204][ T7738] ? bpf_jit_uncharge_modmem+0x1d/0x30 [ 845.880677][ T7738] ? bpf_jit_free+0x157/0x1b0 [ 845.885340][ T7738] ? bpf_jit_free+0x157/0x1b0 [ 845.889999][ T7738] bpf_prog_free_deferred+0x25f/0x340 [ 845.895390][ T7738] process_one_work+0x98e/0x1790 [ 845.900328][ T7738] ? pwq_dec_nr_in_flight+0x320/0x320 [ 845.905694][ T7738] ? lock_acquire+0x16f/0x3f0 [ 845.910363][ T7738] worker_thread+0x98/0xe40 [ 845.914854][ T7738] ? trace_hardirqs_on+0x67/0x230 [ 845.919881][ T7738] kthread+0x357/0x430 [ 845.923931][ T7738] ? process_one_work+0x1790/0x1790 [ 845.929108][ T7738] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 845.935331][ T7738] ret_from_fork+0x3a/0x50 [ 845.941110][ T7738] Kernel Offset: disabled [ 845.945499][ T7738] Rebooting in 86400 seconds..