[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 92.608203][ T27] audit: type=1800 audit(1582775820.536:25): pid=9648 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 92.637213][ T27] audit: type=1800 audit(1582775820.536:26): pid=9648 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 92.700075][ T27] audit: type=1800 audit(1582775820.536:27): pid=9648 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.15.195' (ECDSA) to the list of known hosts. syzkaller login: [ 100.506488][ T9806] IPVS: ftp: loaded support on port[0] = 21 [ 100.564215][ T9806] chnl_net:caif_netlink_parms(): no params data found [ 100.601128][ T9806] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.608793][ T9806] bridge0: port 1(bridge_slave_0) entered disabled state [ 100.616525][ T9806] device bridge_slave_0 entered promiscuous mode [ 100.624971][ T9806] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.632164][ T9806] bridge0: port 2(bridge_slave_1) entered disabled state [ 100.640065][ T9806] device bridge_slave_1 entered promiscuous mode [ 100.657426][ T9806] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 100.668859][ T9806] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 100.688297][ T9806] team0: Port device team_slave_0 added [ 100.695506][ T9806] team0: Port device team_slave_1 added [ 100.709603][ T9806] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 100.716561][ T9806] 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. [ 100.742595][ T9806] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 100.755230][ T9806] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 100.762288][ T9806] 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. [ 100.788258][ T9806] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 100.868788][ T9806] device hsr_slave_0 entered promiscuous mode [ 100.907738][ T9806] device hsr_slave_1 entered promiscuous mode [ 101.029351][ T9806] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 101.069603][ T9806] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 101.120269][ T9806] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 101.179395][ T9806] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 101.261531][ T9806] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.268721][ T9806] bridge0: port 2(bridge_slave_1) entered forwarding state [ 101.276341][ T9806] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.283453][ T9806] bridge0: port 1(bridge_slave_0) entered forwarding state [ 101.325062][ T9806] 8021q: adding VLAN 0 to HW filter on device bond0 [ 101.339777][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 101.349763][ T2707] bridge0: port 1(bridge_slave_0) entered disabled state [ 101.358347][ T2707] bridge0: port 2(bridge_slave_1) entered disabled state [ 101.366452][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 101.380653][ T9806] 8021q: adding VLAN 0 to HW filter on device team0 [ 101.391435][ T3228] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 101.405517][ T3228] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.412586][ T3228] bridge0: port 1(bridge_slave_0) entered forwarding state [ 101.423891][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 101.433087][ T2707] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.440178][ T2707] bridge0: port 2(bridge_slave_1) entered forwarding state [ 101.459021][ T3228] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 101.468892][ T3228] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 101.488765][ T3228] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 101.497645][ T3228] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 101.505856][ T3228] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 101.518356][ T9806] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 101.535757][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 101.543823][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 101.556062][ T9806] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 101.575015][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 101.584059][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 101.604429][ T9806] device veth0_vlan entered promiscuous mode [ 101.611956][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 101.620989][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 101.630778][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 101.641230][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 101.653045][ T9806] device veth1_vlan entered promiscuous mode [ 101.672697][ T3228] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 101.681329][ T3228] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 101.689548][ T3228] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 101.698118][ T3228] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 101.708916][ T9806] device veth0_macvtap entered promiscuous mode [ 101.719958][ T9806] device veth1_macvtap entered promiscuous mode [ 101.736183][ T9806] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 101.744039][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 101.752564][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 101.760888][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 101.769530][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 101.781955][ T9806] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 101.790315][ T3228] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 101.799233][ T3228] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 101.963648][ T9806] BUG: unable to handle page fault for address: ffffed1018445c07 [ 101.971501][ T9806] #PF: supervisor read access in kernel mode [ 101.977469][ T9806] #PF: error_code(0x0000) - not-present page [ 101.983430][ T9806] PGD 21ffef067 P4D 21ffef067 PUD 12fff6067 PMD 0 [ 101.989931][ T9806] Oops: 0000 [#1] PREEMPT SMP KASAN [ 101.995119][ T9806] CPU: 0 PID: 9806 Comm: syz-executor119 Not tainted 5.6.0-rc3-syzkaller #0 [ 102.003775][ T9806] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 102.013832][ T9806] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 102.020578][ T9806] Code: 45 85 e4 0f 84 aa 03 00 00 e8 6e 31 05 fb 48 8b 85 c8 fe ff ff 4e 8d 2c a8 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 0c 84 d2 74 08 4c [ 102.040164][ T9806] RSP: 0018:ffffc9000627f248 EFLAGS: 00010a03 [ 102.046213][ T9806] RAX: dffffc0000000000 RBX: ffff8880a222e03c RCX: ffffffff867055d4 [ 102.054174][ T9806] RDX: 1ffff11018445c07 RSI: ffffffff867055e2 RDI: 0000000000000005 [ 102.062139][ T9806] RBP: ffffc9000627f3b0 R08: ffff8880a000a2c0 R09: ffffc9000627f318 [ 102.070107][ T9806] R10: fffff52000c4fe68 R11: ffffc9000627f347 R12: 0000000000000010 [ 102.078101][ T9806] R13: ffff8880c222e03c R14: ffff8880a222e04c R15: ffffc9000627f388 [ 102.086084][ T9806] FS: 0000000001b49940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 102.095009][ T9806] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 102.101694][ T9806] CR2: ffffed1018445c07 CR3: 00000000a6876000 CR4: 00000000001406f0 [ 102.109675][ T9806] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 102.117639][ T9806] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 102.125596][ T9806] Call Trace: [ 102.128900][ T9806] ? __mutex_lock+0x458/0x13c0 [ 102.133661][ T9806] ? lock_downgrade+0x920/0x920 [ 102.138523][ T9806] ? ethnl_bitmap32_clear+0x390/0x390 [ 102.143891][ T9806] ? mutex_trylock+0x2d0/0x2d0 [ 102.148658][ T9806] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 102.154903][ T9806] ? ethnl_default_notify+0x6b0/0x6b0 [ 102.160275][ T9806] ? sock_sendmsg+0xd7/0x130 [ 102.164868][ T9806] ethnl_update_bitset+0x4d/0x67 [ 102.169818][ T9806] ethnl_set_linkmodes+0x461/0xc30 [ 102.174921][ T9806] ? lock_downgrade+0x920/0x920 [ 102.179780][ T9806] ? linkmodes_prepare_data+0x2a0/0x2a0 [ 102.185331][ T9806] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 102.194116][ T9806] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 102.199579][ T9806] ? kfree_skbmem+0xfb/0x1c0 [ 102.204162][ T9806] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 102.210396][ T9806] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 102.217173][ T9806] ? security_capable+0x95/0xc0 [ 102.222029][ T9806] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 102.228265][ T9806] ? genl_family_rcv_msg_attrs_parse+0x1c6/0x300 [ 102.234907][ T9806] genl_rcv_msg+0x67d/0xea0 [ 102.239421][ T9806] ? genl_rcv_msg+0x67d/0xea0 [ 102.244098][ T9806] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 102.250440][ T9806] ? __kasan_check_read+0x11/0x20 [ 102.255472][ T9806] ? find_held_lock+0x35/0x130 [ 102.260240][ T9806] netlink_rcv_skb+0x177/0x450 [ 102.264993][ T9806] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 102.271310][ T9806] ? netlink_ack+0xb50/0xb50 [ 102.275886][ T9806] ? __kasan_check_write+0x14/0x20 [ 102.280984][ T9806] ? netlink_deliver_tap+0x248/0xbf0 [ 102.286255][ T9806] genl_rcv+0x29/0x40 [ 102.290223][ T9806] netlink_unicast+0x59e/0x7e0 [ 102.294993][ T9806] ? netlink_attachskb+0x870/0x870 [ 102.300113][ T9806] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 102.305838][ T9806] ? __check_object_size+0x3d/0x437 [ 102.311035][ T9806] netlink_sendmsg+0x91c/0xea0 [ 102.315796][ T9806] ? netlink_unicast+0x7e0/0x7e0 [ 102.320733][ T9806] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 102.326269][ T9806] ? apparmor_socket_sendmsg+0x2a/0x30 [ 102.332772][ T9806] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 102.338997][ T9806] ? security_socket_sendmsg+0x8d/0xc0 [ 102.344439][ T9806] ? netlink_unicast+0x7e0/0x7e0 [ 102.349376][ T9806] sock_sendmsg+0xd7/0x130 [ 102.353780][ T9806] ____sys_sendmsg+0x753/0x880 [ 102.358567][ T9806] ? kernel_sendmsg+0x50/0x50 [ 102.363258][ T9806] ? debug_object_active_state+0x28a/0x350 [ 102.369057][ T9806] ? find_held_lock+0x35/0x130 [ 102.373841][ T9806] ___sys_sendmsg+0x100/0x170 [ 102.378518][ T9806] ? sendmsg_copy_msghdr+0x70/0x70 [ 102.383617][ T9806] ? lockdep_hardirqs_on+0x421/0x5e0 [ 102.388906][ T9806] ? __kasan_check_read+0x11/0x20 [ 102.393938][ T9806] ? mark_lock+0xc2/0x1220 [ 102.398351][ T9806] ? __kasan_check_read+0x11/0x20 [ 102.403375][ T9806] ? __lock_acquire+0x16f2/0x4a00 [ 102.408394][ T9806] ? debug_object_deactivate+0x320/0x320 [ 102.414015][ T9806] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 102.420163][ T9806] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 102.426386][ T9806] ? __fget_light+0x1ad/0x270 [ 102.431052][ T9806] ? __fdget+0x1b/0x20 [ 102.435114][ T9806] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 102.441376][ T9806] __sys_sendmsg+0x105/0x1d0 [ 102.445949][ T9806] ? __sys_sendmsg_sock+0xc0/0xc0 [ 102.451229][ T9806] ? lockdep_hardirqs_on+0x421/0x5e0 [ 102.456538][ T9806] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 102.462167][ T9806] ? do_syscall_64+0x26/0x790 [ 102.466851][ T9806] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 102.472967][ T9806] ? do_syscall_64+0x26/0x790 [ 102.477678][ T9806] __x64_sys_sendmsg+0x78/0xb0 [ 102.482453][ T9806] do_syscall_64+0xfa/0x790 [ 102.486945][ T9806] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 102.492852][ T9806] RIP: 0033:0x448439 [ 102.496726][ T9806] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 8b d2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 102.516346][ T9806] RSP: 002b:00007ffeaf258f68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 102.524761][ T9806] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000448439 [ 102.532718][ T9806] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 102.540681][ T9806] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000003 [ 102.548676][ T9806] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 102.556701][ T9806] R13: 0000000000405be0 R14: 0000000000000000 R15: 0000000000000000 [ 102.564674][ T9806] Modules linked in: [ 102.568554][ T9806] CR2: ffffed1018445c07 [ 102.572704][ T9806] ---[ end trace 1b3e7ff7ab4861e2 ]--- [ 102.578195][ T9806] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 102.585154][ T9806] Code: 45 85 e4 0f 84 aa 03 00 00 e8 6e 31 05 fb 48 8b 85 c8 fe ff ff 4e 8d 2c a8 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 0c 84 d2 74 08 4c [ 102.604749][ T9806] RSP: 0018:ffffc9000627f248 EFLAGS: 00010a03 [ 102.610807][ T9806] RAX: dffffc0000000000 RBX: ffff8880a222e03c RCX: ffffffff867055d4 [ 102.618772][ T9806] RDX: 1ffff11018445c07 RSI: ffffffff867055e2 RDI: 0000000000000005 [ 102.626743][ T9806] RBP: ffffc9000627f3b0 R08: ffff8880a000a2c0 R09: ffffc9000627f318 [ 102.634766][ T9806] R10: fffff52000c4fe68 R11: ffffc9000627f347 R12: 0000000000000010 [ 102.642797][ T9806] R13: ffff8880c222e03c R14: ffff8880a222e04c R15: ffffc9000627f388 [ 102.650763][ T9806] FS: 0000000001b49940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 102.659683][ T9806] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 102.666260][ T9806] CR2: ffffed1018445c07 CR3: 00000000a6876000 CR4: 00000000001406f0 [ 102.674246][ T9806] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 102.682817][ T9806] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 102.690793][ T9806] Kernel panic - not syncing: Fatal exception [ 102.698347][ T9806] Kernel Offset: disabled [ 102.702683][ T9806] Rebooting in 86400 seconds..