Warning: Permanently added '10.128.0.243' (ECDSA) to the list of known hosts. [ 958.531103][ T25] audit: type=1400 audit(1575192699.665:43): avc: denied { map } for pid=9880 comm="syz-execprog" path="/root/syz-execprog" 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 2019/12/01 09:31:39 parsed 1 programs [ 959.752047][ T25] audit: type=1400 audit(1575192700.885:44): avc: denied { map } for pid=9880 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=1091 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 2019/12/01 09:31:41 executed programs: 0 [ 960.012860][ T9895] IPVS: ftp: loaded support on port[0] = 21 [ 960.092982][ T9895] chnl_net:caif_netlink_parms(): no params data found [ 960.123923][ T9895] bridge0: port 1(bridge_slave_0) entered blocking state [ 960.132003][ T9895] bridge0: port 1(bridge_slave_0) entered disabled state [ 960.140734][ T9895] device bridge_slave_0 entered promiscuous mode [ 960.149322][ T9895] bridge0: port 2(bridge_slave_1) entered blocking state [ 960.156425][ T9895] bridge0: port 2(bridge_slave_1) entered disabled state [ 960.165065][ T9895] device bridge_slave_1 entered promiscuous mode [ 960.184193][ T9895] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 960.195316][ T9895] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 960.216118][ T9895] team0: Port device team_slave_0 added [ 960.223981][ T9895] team0: Port device team_slave_1 added [ 960.310116][ T9895] device hsr_slave_0 entered promiscuous mode [ 960.358218][ T9895] device hsr_slave_1 entered promiscuous mode [ 960.424276][ T25] audit: type=1400 audit(1575192701.555:45): avc: denied { create } for pid=9895 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=netlink_generic_socket permissive=1 [ 960.426615][ T9895] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 960.451519][ T25] audit: type=1400 audit(1575192701.555:46): avc: denied { write } for pid=9895 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=netlink_generic_socket permissive=1 [ 960.482364][ T25] audit: type=1400 audit(1575192701.555:47): avc: denied { read } for pid=9895 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=netlink_generic_socket permissive=1 [ 960.530179][ T9895] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 960.570591][ T9895] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 960.610784][ T9895] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 960.709568][ T9895] bridge0: port 2(bridge_slave_1) entered blocking state [ 960.716857][ T9895] bridge0: port 2(bridge_slave_1) entered forwarding state [ 960.725023][ T9895] bridge0: port 1(bridge_slave_0) entered blocking state [ 960.732969][ T9895] bridge0: port 1(bridge_slave_0) entered forwarding state [ 960.774781][ T9895] 8021q: adding VLAN 0 to HW filter on device bond0 [ 960.789560][ T2934] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 960.810632][ T2934] bridge0: port 1(bridge_slave_0) entered disabled state [ 960.830409][ T2934] bridge0: port 2(bridge_slave_1) entered disabled state [ 960.838916][ T2934] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 960.853224][ T9895] 8021q: adding VLAN 0 to HW filter on device team0 [ 960.874333][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 960.883452][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 960.890711][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 960.909016][ T2934] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 960.917530][ T2934] bridge0: port 2(bridge_slave_1) entered blocking state [ 960.924874][ T2934] bridge0: port 2(bridge_slave_1) entered forwarding state [ 960.945236][ T9895] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 960.958401][ T9895] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 960.971580][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 960.980682][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 960.989403][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 960.999368][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 961.007890][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 961.015583][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 961.035269][ T9895] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 961.044536][ T9900] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 961.052270][ T9900] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 961.063036][ T25] audit: type=1400 audit(1575192702.195:48): avc: denied { associate } for pid=9895 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 [ 961.166403][ T25] audit: type=1400 audit(1575192702.295:49): avc: denied { open } for pid=9905 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=perf_event permissive=1 [ 961.300457][ T9920] ------------[ cut here ]------------ [ 961.306233][ T9920] refcount_t: underflow; use-after-free. [ 961.319783][ T9920] WARNING: CPU: 0 PID: 9920 at lib/refcount.c:28 refcount_warn_saturate+0x1dc/0x1f0 [ 961.329190][ T9920] Kernel panic - not syncing: panic_on_warn set ... [ 961.335808][ T9920] CPU: 0 PID: 9920 Comm: syz-executor.0 Not tainted 5.4.0-syzkaller #0 [ 961.344170][ T9920] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 961.354316][ T9920] Call Trace: [ 961.357661][ T9920] dump_stack+0x197/0x210 [ 961.361991][ T9920] ? refcount_warn_saturate+0x190/0x1f0 [ 961.367578][ T9920] panic+0x2e3/0x75c [ 961.371461][ T9920] ? add_taint.cold+0x16/0x16 [ 961.376212][ T9920] ? __kasan_check_write+0x14/0x20 [ 961.381329][ T9920] ? __warn.cold+0x14/0x3e [ 961.385738][ T9920] ? __warn+0xd9/0x1cf [ 961.389798][ T9920] ? refcount_warn_saturate+0x1dc/0x1f0 [ 961.395345][ T9920] __warn.cold+0x2f/0x3e [ 961.399711][ T9920] ? refcount_warn_saturate+0x1dc/0x1f0 [ 961.405289][ T9920] report_bug+0x289/0x300 [ 961.409652][ T9920] do_error_trap+0x11b/0x200 [ 961.416140][ T9920] do_invalid_op+0x37/0x50 [ 961.420540][ T9920] ? refcount_warn_saturate+0x1dc/0x1f0 [ 961.426134][ T9920] invalid_op+0x23/0x30 [ 961.430352][ T9920] RIP: 0010:refcount_warn_saturate+0x1dc/0x1f0 [ 961.436485][ T9920] Code: e9 d8 fe ff ff 48 89 df e8 c1 5a 24 fe e9 85 fe ff ff e8 e7 08 e7 fd 48 c7 c7 a0 6f 4f 88 c6 05 60 b8 a4 06 01 e8 53 bd b7 fd <0f> 0b e9 ac fe ff ff 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 55 48 [ 961.456218][ T9920] RSP: 0018:ffff888091747d50 EFLAGS: 00010286 [ 961.462271][ T9920] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 961.470319][ T9920] RDX: 0000000000000000 RSI: ffffffff815e4316 RDI: ffffed10122e8f9c [ 961.478400][ T9920] RBP: ffff888091747d60 R08: ffff8880910b0300 R09: ffffed1015d06621 [ 961.486373][ T9920] R10: ffffed1015d06620 R11: ffff8880ae833107 R12: 0000000000000003 [ 961.494361][ T9920] R13: 0000000000000000 R14: ffff88809c397300 R15: ffff8880967f0598 [ 961.502434][ T9920] ? vprintk_func+0x86/0x189 [ 961.507071][ T9920] smc_release+0x445/0x520 [ 961.511949][ T9920] __sock_release+0xce/0x280 [ 961.516538][ T9920] sock_close+0x1e/0x30 [ 961.520720][ T9920] __fput+0x2ff/0x890 [ 961.524690][ T9920] ? __sock_release+0x280/0x280 [ 961.529545][ T9920] ____fput+0x16/0x20 [ 961.533553][ T9920] task_work_run+0x145/0x1c0 [ 961.538172][ T9920] exit_to_usermode_loop+0x316/0x380 [ 961.544605][ T9920] do_syscall_64+0x676/0x790 [ 961.549194][ T9920] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 961.555080][ T9920] RIP: 0033:0x414211 [ 961.559002][ T9920] Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 961.578726][ T9920] RSP: 002b:00007ffff6b10050 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 961.587129][ T9920] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000414211 [ 961.595278][ T9920] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 961.603234][ T9920] RBP: 0000000000000000 R08: ffffffffffffffff R09: ffffffffffffffff [ 961.611194][ T9920] R10: 00007ffff6b10130 R11: 0000000000000293 R12: 000000000075bfc8 [ 961.619164][ T9920] R13: 00000000000eaafb R14: 0000000000760458 R15: 000000000075bfd4 [ 961.628830][ T9920] Kernel Offset: disabled [ 961.633342][ T9920] Rebooting in 86400 seconds..