[ OK ] Started Daily apt download activities. Starting Permit User Sessions... Starting OpenBSD Secure Shell server... [ OK ] Started Daily apt upgrade and clean activities. [ OK ] Reached target Timers. [ OK ] Started Regular background program processing daemon. [ OK ] Started System Logging Service. [ OK ] Started Permit User Sessions. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.40' (ECDSA) to the list of known hosts. syzkaller login: [ 83.274587][ T37] audit: type=1400 audit(1626866414.480:8): avc: denied { execmem } for pid=8467 comm="syz-executor989" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 84.612238][ T8468] chnl_net:caif_netlink_parms(): no params data found [ 84.670807][ T8468] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.678972][ T8468] bridge0: port 1(bridge_slave_0) entered disabled state [ 84.692190][ T8468] device bridge_slave_0 entered promiscuous mode [ 84.701958][ T8468] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.712288][ T8468] bridge0: port 2(bridge_slave_1) entered disabled state [ 84.722634][ T8468] device bridge_slave_1 entered promiscuous mode [ 84.745957][ T8468] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 84.759459][ T8468] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 84.782925][ T8468] team0: Port device team_slave_0 added [ 84.791597][ T8468] team0: Port device team_slave_1 added [ 84.812860][ T8468] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 84.819966][ T8468] 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. [ 84.846854][ T8468] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 84.860902][ T8468] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 84.869130][ T8468] 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. [ 84.895933][ T8468] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 84.925719][ T8468] device hsr_slave_0 entered promiscuous mode [ 84.933003][ T8468] device hsr_slave_1 entered promiscuous mode [ 85.050676][ T8468] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 85.066308][ T8468] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 85.081245][ T8468] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 85.091217][ T8468] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 85.123386][ T8468] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.131049][ T8468] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.139460][ T8468] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.146767][ T8468] bridge0: port 1(bridge_slave_0) entered forwarding state [ 85.194468][ T8468] 8021q: adding VLAN 0 to HW filter on device bond0 [ 85.208163][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 85.221256][ T20] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.231351][ T20] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.240601][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 85.256657][ T8468] 8021q: adding VLAN 0 to HW filter on device team0 [ 85.268352][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 85.278145][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.285491][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 85.299371][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 85.308004][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.315210][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.342555][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 85.352250][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 85.361234][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 85.374514][ T8468] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 85.388079][ T8468] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 85.398247][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 85.406508][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 85.426343][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 85.434014][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 85.450266][ T8468] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 85.471391][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 85.492886][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 85.502228][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 85.511317][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 85.521663][ T8468] device veth0_vlan entered promiscuous mode [ 85.536272][ T8468] device veth1_vlan entered promiscuous mode [ 85.561305][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 85.570458][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 85.578557][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 85.591494][ T8468] device veth0_macvtap entered promiscuous mode [ 85.601116][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 85.614189][ T8468] device veth1_macvtap entered promiscuous mode [ 85.633778][ T8468] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 85.643184][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 85.653786][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 85.666972][ T8468] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 85.680069][ T8468] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.689675][ T8468] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.700608][ T8468] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.709414][ T8468] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.722730][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 85.732164][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory executing program write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory executing program write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory executing program write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory executing program write to /proc/sys/net/core/bpf_jit_kallsyms failed: No such file or directory write to /proc/sys/net/core/bpf_jit_harden failed: No such file or directory executing program [ 85.836879][ T8704] divide error: 0000 [#1] PREEMPT SMP KASAN [ 85.843377][ T8704] CPU: 0 PID: 8704 Comm: syz-executor989 Not tainted 5.14.0-rc2-syzkaller #0 [ 85.852591][ T8704] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.863407][ T8704] RIP: 0010:netem_enqueue+0x1474/0x3550 [ 85.868989][ T8704] Code: 74 1f 4c 89 44 24 20 89 4c 24 18 89 44 24 10 e8 12 d2 74 fa 4c 8b 44 24 20 8b 4c 24 18 8b 44 24 10 48 8b 34 24 31 d2 2b 4e 74 f1 48 b8 00 00 00 00 00 fc ff df 48 01 d3 48 89 d9 48 c1 e9 03 [ 85.889310][ T8704] RSP: 0018:ffffc900022d7570 EFLAGS: 00010246 [ 85.895390][ T8704] RAX: 000000000d329e95 RBX: ffff888012388000 RCX: 0000000000000000 [ 85.903787][ T8704] RDX: 0000000000000000 RSI: ffff888016716500 RDI: ffff888016716574 [ 85.911974][ T8704] RBP: ffff888016eac330 R08: ffff8880167165d0 R09: 0000000000000000 [ 85.920341][ T8704] R10: ffffffff83d3218d R11: 0000000000000000 R12: 0000000000000001 [ 85.928566][ T8704] R13: 0000000000000001 R14: ffff888016eac000 R15: 0000000000000000 [ 85.936649][ T8704] FS: 00007ff516b5e700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 85.945926][ T8704] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.952564][ T8704] CR2: 0000000000b13608 CR3: 00000000169b2000 CR4: 00000000001506f0 [ 85.960974][ T8704] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 85.969470][ T8704] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 85.977529][ T8704] Call Trace: [ 85.980793][ T8704] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 85.987179][ T8704] ? netem_dump+0x11d0/0x11d0 [ 85.991836][ T8704] ? __skb_clone+0x597/0x780 [ 85.996583][ T8704] netem_enqueue+0x2048/0x3550 [ 86.001416][ T8704] ? lock_release+0x720/0x720 [ 86.006250][ T8704] ? netem_dump+0x11d0/0x11d0 [ 86.010907][ T8704] ? rwlock_bug.part.0+0x90/0x90 [ 86.015917][ T8704] __dev_queue_xmit+0x1e7d/0x36c0 [ 86.021094][ T8704] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 86.026457][ T8704] ? memcpy+0x39/0x60 [ 86.030452][ T8704] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 86.036683][ T8704] ? memcpy+0x39/0x60 [ 86.040660][ T8704] ? __skb_clone+0x597/0x780 [ 86.046920][ T8704] netlink_deliver_tap+0x9b5/0xbc0 [ 86.052190][ T8704] netlink_unicast+0x5e5/0x7d0 [ 86.057198][ T8704] ? netlink_attachskb+0x890/0x890 [ 86.062926][ T8704] ? __build_skb_around+0x23e/0x2f0 [ 86.068341][ T8704] netlink_sendmsg+0x86d/0xdb0 [ 86.073707][ T8704] ? netlink_unicast+0x7d0/0x7d0 [ 86.079173][ T8704] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 86.085948][ T8704] ? netlink_unicast+0x7d0/0x7d0 [ 86.091529][ T8704] sock_sendmsg+0xcf/0x120 [ 86.097057][ T8704] ____sys_sendmsg+0x6e8/0x810 [ 86.101932][ T8704] ? kernel_sendmsg+0x50/0x50 [ 86.107411][ T8704] ? do_recvmmsg+0x6d0/0x6d0 [ 86.113587][ T8704] ? lock_chain_count+0x20/0x20 [ 86.118445][ T8704] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 86.124732][ T8704] ___sys_sendmsg+0xf3/0x170 [ 86.130109][ T8704] ? sendmsg_copy_msghdr+0x160/0x160 [ 86.135748][ T8704] ? __fget_files+0x21b/0x3e0 [ 86.140743][ T8704] ? lock_downgrade+0x6e0/0x6e0 [ 86.145959][ T8704] ? __fget_files+0x23d/0x3e0 [ 86.150744][ T8704] ? __fget_light+0xea/0x280 [ 86.155610][ T8704] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 86.162430][ T8704] __sys_sendmsg+0xe5/0x1b0 [ 86.167279][ T8704] ? __sys_sendmsg_sock+0x30/0x30 [ 86.172388][ T8704] ? syscall_enter_from_user_mode+0x21/0x70 [ 86.179106][ T8704] do_syscall_64+0x35/0xb0 [ 86.183791][ T8704] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 86.190344][ T8704] RIP: 0033:0x451b49 [ 86.194637][ T8704] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 91 18 00 00 90 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 86.215211][ T8704] RSP: 002b:00007ff516b5e308 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 86.223710][ T8704] RAX: ffffffffffffffda RBX: 00000000004d04c8 RCX: 0000000000451b49 [ 86.231968][ T8704] RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000004 [ 86.239934][ T8704] RBP: 00000000004d04c0 R08: 0000000000000000 R09: 0000000000000000 [ 86.248084][ T8704] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004d04cc [ 86.256214][ T8704] R13: 000000000049f800 R14: 0004000c00000000 R15: 0000000000022000 [ 86.264181][ T8704] Modules linked in: [ 86.268454][ T8704] ---[ end trace 063fff6cda61b958 ]--- [ 86.274160][ T8704] RIP: 0010:netem_enqueue+0x1474/0x3550 [ 86.279763][ T8704] Code: 74 1f 4c 89 44 24 20 89 4c 24 18 89 44 24 10 e8 12 d2 74 fa 4c 8b 44 24 20 8b 4c 24 18 8b 44 24 10 48 8b 34 24 31 d2 2b 4e 74 f1 48 b8 00 00 00 00 00 fc ff df 48 01 d3 48 89 d9 48 c1 e9 03 [ 86.299856][ T8704] RSP: 0018:ffffc900022d7570 EFLAGS: 00010246 [ 86.306103][ T8704] RAX: 000000000d329e95 RBX: ffff888012388000 RCX: 0000000000000000 [ 86.314094][ T8704] RDX: 0000000000000000 RSI: ffff888016716500 RDI: ffff888016716574 [ 86.322161][ T8704] RBP: ffff888016eac330 R08: ffff8880167165d0 R09: 0000000000000000 [ 86.330349][ T8704] R10: ffffffff83d3218d R11: 0000000000000000 R12: 0000000000000001 [ 86.338500][ T8704] R13: 0000000000000001 R14: ffff888016eac000 R15: 0000000000000000 [ 86.346818][ T8704] FS: 00007ff516b5e700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 86.356092][ T8704] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.363813][ T8704] CR2: 0000000000b13608 CR3: 00000000169b2000 CR4: 00000000001506f0 [ 86.371828][ T8704] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 86.380329][ T8704] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 86.388397][ T8704] Kernel panic - not syncing: Fatal exception in interrupt [ 86.395815][ T8704] Kernel Offset: disabled [ 86.400149][ T8704] Rebooting in 86400 seconds..