Warning: Permanently added '10.128.0.181' (ECDSA) to the list of known hosts. [ 59.137641] audit: type=1400 audit(1585075418.940:36): avc: denied { map } for pid=8287 comm="syz-executor819" path="/root/syz-executor819656518" dev="sda1" ino=2233 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 59.170159] IPVS: ftp: loaded support on port[0] = 21 [ 59.201931] audit: type=1400 audit(1585075419.000:37): avc: denied { create } for pid=8288 comm="syz-executor819" 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 [ 59.226441] audit: type=1400 audit(1585075419.000:38): avc: denied { write } for pid=8288 comm="syz-executor819" 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 [ 59.251853] audit: type=1400 audit(1585075419.000:39): avc: denied { read } for pid=8288 comm="syz-executor819" 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 [ 59.277867] chnl_net:caif_netlink_parms(): no params data found [ 59.331838] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.338822] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.346271] device bridge_slave_0 entered promiscuous mode [ 59.353649] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.360757] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.368726] device bridge_slave_1 entered promiscuous mode [ 59.387626] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 59.396841] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 59.414485] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 59.422088] team0: Port device team_slave_0 added [ 59.428638] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 59.436376] team0: Port device team_slave_1 added [ 59.450746] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 59.458024] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 59.483799] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 59.496441] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 59.502700] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 59.528154] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 59.539135] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 59.546794] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 59.606801] device hsr_slave_0 entered promiscuous mode [ 59.644987] device hsr_slave_1 entered promiscuous mode [ 59.685366] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 59.692667] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 59.760011] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.766663] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.773367] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.779859] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.819850] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 59.827623] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.837234] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 59.847503] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.866936] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.874305] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.882273] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 59.893359] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 59.899827] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.910061] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.917827] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.924429] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.934351] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.942354] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.948881] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.966727] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.975747] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.986503] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.002080] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 60.011922] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.022966] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 60.029957] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.037913] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.046452] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.061432] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 60.069179] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.076389] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.088297] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.102180] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 60.112985] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 60.159749] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 60.166994] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 60.173543] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 60.183507] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 60.191318] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 60.198862] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 60.208470] device veth0_vlan entered promiscuous mode [ 60.219793] device veth1_vlan entered promiscuous mode [ 60.226099] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 60.236078] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 60.250132] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 60.260685] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 60.268559] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 60.276476] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 60.286865] device veth0_macvtap entered promiscuous mode [ 60.295703] device veth1_macvtap entered promiscuous mode [ 60.304470] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 60.314497] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 60.324501] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready [ 60.331996] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 60.339237] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 60.347254] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 60.357551] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 60.364402] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 60.372094] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 60.380049] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program *** stack smashing detected ***: ./syz-executor819656518 terminated tun: can't open /dev/net/tun: please enable CONFIG_TUN=y otherwise fuzzing or reproducing might not work as intended executing program [ 60.751432] ------------[ cut here ]------------ [ 60.756268] kernel BUG at net/sctp/sm_sideeffect.c:1538! [ 60.763026] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 60.768389] CPU: 0 PID: 8352 Comm: syz-executor819 Not tainted 4.19.112-syzkaller #0 [ 60.776249] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.785591] RIP: 0010:sctp_do_sm+0x41f6/0x4f20 [ 60.790160] Code: 00 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 74 08 3c 03 0f 8e 2c 09 00 00 41 8b 9f b0 02 00 00 e9 fc f7 ff ff e8 4a ed cf fa <0f> 0b e8 43 ed cf fa 68 20 00 48 00 ff 74 24 08 e9 6e de ff ff e8 [ 60.809043] RSP: 0018:ffff8880a4b5f9a0 EFLAGS: 00010293 [ 60.814386] RAX: ffff888080dc05c0 RBX: 0000000000000003 RCX: ffffffff86977ac5 [ 60.821636] RDX: 0000000000000000 RSI: ffffffff8697b776 RDI: 0000000000000007 [ 60.828886] RBP: 0000000000000000 R08: ffff888080dc05c0 R09: ffffed1012866661 [ 60.836169] R10: ffffed1012866660 R11: ffff888094333307 R12: ffff8880a7dd25f0 [ 60.843514] R13: 0000000000000012 R14: dffffc0000000000 R15: ffff8880a7dd2200 [ 60.850767] FS: 0000000001b38940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 60.859002] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.864869] CR2: 00007fffe67e5ff8 CR3: 0000000092db8000 CR4: 00000000001406f0 [ 60.872123] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.879416] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.886664] Call Trace: [ 60.889258] ? __lock_acquire+0x6ee/0x49c0 [ 60.893473] ? mark_held_locks+0xf0/0xf0 [ 60.897518] ? sctp_do_8_2_transport_strike.isra.0+0x910/0x910 [ 60.903477] ? mark_held_locks+0xf0/0xf0 [ 60.907521] ? mark_held_locks+0xf0/0xf0 [ 60.911564] ? debug_check_no_obj_freed+0x20a/0x42e [ 60.916566] ? find_held_lock+0x2d/0x110 [ 60.920612] ? skb_dequeue+0x129/0x180 [ 60.924485] ? _raw_spin_unlock_irqrestore+0x67/0xe0 [ 60.929569] ? lockdep_hardirqs_on+0x40b/0x5d0 [ 60.934127] ? _raw_spin_unlock_irqrestore+0xa0/0xe0 [ 60.939216] sctp_primitive_SHUTDOWN+0x9b/0xc0 [ 60.943779] sctp_close+0x3ce/0x7b0 [ 60.947405] ? sctp_init_sock+0x1270/0x1270 [ 60.951709] ? vfs_lock_file+0xe0/0xe0 [ 60.955578] ? mark_held_locks+0xf0/0xf0 [ 60.959631] ? lock_acquire+0x170/0x400 [ 60.963593] ? ip_mc_drop_socket+0x16/0x260 [ 60.967895] ? __sock_release+0x86/0x2a0 [ 60.971947] inet_release+0xd7/0x1e0 [ 60.975646] inet6_release+0x4c/0x70 [ 60.979351] __sock_release+0xcd/0x2a0 [ 60.983220] ? __sock_release+0x2a0/0x2a0 [ 60.987350] sock_close+0x15/0x20 [ 60.990787] __fput+0x2cd/0x890 [ 60.994059] task_work_run+0x13f/0x1b0 [ 60.997937] exit_to_usermode_loop+0x25a/0x2b0 [ 61.002518] do_syscall_64+0x538/0x620 [ 61.006389] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 61.011566] RIP: 0033:0x404d70 [ 61.014749] Code: 01 f0 ff ff 0f 83 c0 0f 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 1d a2 2d 00 00 75 14 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 94 0f 00 00 c3 48 83 ec 08 e8 fa 04 00 00 [ 61.033656] RSP: 002b:00007ffd8f40b488 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 61.041376] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000404d70 [ 61.048679] RDX: 000000000000006e RSI: 0000000000000084 RDI: 0000000000000003 [ 61.055958] RBP: 00007ffd8f40b4b0 R08: 0000000000000020 R09: 0000000000000003 [ 61.063206] R10: 0000000020000000 R11: 0000000000000246 R12: 00007ffd8f40b4e0 [ 61.070455] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 61.077710] Modules linked in: [ 61.083545] ---[ end trace bda084c392ac197a ]--- [ 61.090378] RIP: 0010:sctp_do_sm+0x41f6/0x4f20 [ 61.095284] Code: 00 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 74 08 3c 03 0f 8e 2c 09 00 00 41 8b 9f b0 02 00 00 e9 fc f7 ff ff e8 4a ed cf fa <0f> 0b e8 43 ed cf fa 68 20 00 48 00 ff 74 24 08 e9 6e de ff ff e8 [ 61.115104] RSP: 0018:ffff8880a4b5f9a0 EFLAGS: 00010293 [ 61.120485] RAX: ffff888080dc05c0 RBX: 0000000000000003 RCX: ffffffff86977ac5 [ 61.128021] RDX: 0000000000000000 RSI: ffffffff8697b776 RDI: 0000000000000007 [ 61.135633] RBP: 0000000000000000 R08: ffff888080dc05c0 R09: ffffed1012866661 [ 61.142894] R10: ffffed1012866660 R11: ffff888094333307 R12: ffff8880a7dd25f0 [ 61.150181] R13: 0000000000000012 R14: dffffc0000000000 R15: ffff8880a7dd2200 [ 61.157501] FS: 0000000001b38940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 61.165758] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.171640] CR2: 00007fffe67e5ff8 CR3: 0000000092db8000 CR4: 00000000001406f0 [ 61.178972] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.186905] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.194168] Kernel panic - not syncing: Fatal exception [ 61.200593] Kernel Offset: disabled [ 61.204216] Rebooting in 86400 seconds..