Warning: Permanently added '10.128.0.174' (ECDSA) to the list of known hosts. syzkaller login: [ 317.790368][ T27] audit: type=1400 audit(1594278613.161:8): avc: denied { execmem } for pid=6822 comm="syz-executor062" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 317.809563][ T6823] IPVS: ftp: loaded support on port[0] = 21 [ 317.894241][ T6823] chnl_net:caif_netlink_parms(): no params data found [ 317.942700][ T6823] bridge0: port 1(bridge_slave_0) entered blocking state [ 317.950347][ T6823] bridge0: port 1(bridge_slave_0) entered disabled state [ 317.958066][ T6823] device bridge_slave_0 entered promiscuous mode [ 317.966836][ T6823] bridge0: port 2(bridge_slave_1) entered blocking state [ 317.974016][ T6823] bridge0: port 2(bridge_slave_1) entered disabled state [ 317.981789][ T6823] device bridge_slave_1 entered promiscuous mode [ 318.002281][ T6823] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 318.012993][ T6823] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 318.034370][ T6823] team0: Port device team_slave_0 added [ 318.042818][ T6823] team0: Port device team_slave_1 added [ 318.058822][ T6823] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 318.065914][ T6823] 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. [ 318.091867][ T6823] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 318.104293][ T6823] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 318.111317][ T6823] 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. [ 318.137358][ T6823] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 318.203320][ T6823] device hsr_slave_0 entered promiscuous mode [ 318.249753][ T6823] device hsr_slave_1 entered promiscuous mode [ 318.392061][ T6823] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 318.432885][ T6823] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 318.482609][ T6823] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 318.541498][ T6823] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 318.596078][ T6823] bridge0: port 2(bridge_slave_1) entered blocking state [ 318.603269][ T6823] bridge0: port 2(bridge_slave_1) entered forwarding state [ 318.611255][ T6823] bridge0: port 1(bridge_slave_0) entered blocking state [ 318.618513][ T6823] bridge0: port 1(bridge_slave_0) entered forwarding state [ 318.662407][ T6823] 8021q: adding VLAN 0 to HW filter on device bond0 [ 318.676931][ T3843] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 318.687491][ T3843] bridge0: port 1(bridge_slave_0) entered disabled state [ 318.696372][ T3843] bridge0: port 2(bridge_slave_1) entered disabled state [ 318.705260][ T3843] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 318.718113][ T6823] 8021q: adding VLAN 0 to HW filter on device team0 [ 318.729553][ T42] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 318.737862][ T42] bridge0: port 1(bridge_slave_0) entered blocking state [ 318.745112][ T42] bridge0: port 1(bridge_slave_0) entered forwarding state [ 318.760511][ T3843] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 318.768794][ T3843] bridge0: port 2(bridge_slave_1) entered blocking state [ 318.775890][ T3843] bridge0: port 2(bridge_slave_1) entered forwarding state [ 318.800561][ T42] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 318.808978][ T42] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 318.818094][ T42] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 318.826821][ T42] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 318.837202][ T6823] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 318.847100][ T6815] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 318.869100][ T6823] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 318.876393][ T3843] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 318.883918][ T3843] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 318.903110][ T6815] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 318.911968][ T6815] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 318.931469][ T3843] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 318.941229][ T3843] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 318.954107][ T6823] device veth0_vlan entered promiscuous mode [ 318.961057][ T7030] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 318.968885][ T7030] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 318.988024][ T6823] device veth1_vlan entered promiscuous mode [ 319.008231][ T6815] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 319.016784][ T6815] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 319.025091][ T6815] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 319.034085][ T6815] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 319.045064][ T6823] device veth0_macvtap entered promiscuous mode [ 319.055949][ T6823] device veth1_macvtap entered promiscuous mode [ 319.072590][ T6823] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 319.081432][ T6815] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 319.090694][ T6815] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 319.098707][ T6815] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 319.107917][ T6815] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 319.119823][ T6823] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 319.132720][ T42] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 319.143149][ T42] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 424.304956][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 424.312078][ C1] rcu: 0-...0: (0 ticks this GP) idle=f9a/1/0x4000000000000000 softirq=9251/9251 fqs=5250 [ 424.322317][ C1] (detected by 1, t=10502 jiffies, g=9489, q=4290) [ 424.328894][ C1] Sending NMI from CPU 1 to CPUs 0: [ 424.335191][ C1] NMI backtrace for cpu 0 [ 424.335198][ C1] CPU: 0 PID: 6823 Comm: syz-executor062 Not tainted 5.8.0-rc4-syzkaller #0 [ 424.335206][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 424.335211][ C1] RIP: 0010:__kasan_check_write+0x4/0x10 [ 424.335225][ C1] Code: 30 1d 69 89 f7 da e8 2a 5c aa ff e9 3b ef ff ff cc cc cc cc cc cc 48 8b 0c 24 89 f6 31 d2 e9 73 2a 00 00 0f 1f 00 48 8b 0c 24 <89> f6 ba 01 00 00 00 e9 60 2a 00 00 41 54 31 d2 41 89 fc be 40 00 [ 424.335230][ C1] RSP: 0018:ffffc90000007d38 EFLAGS: 00000046 [ 424.335239][ C1] RAX: 0000000080010001 RBX: ffff8880a1945800 RCX: ffffffff86334ea5 [ 424.335245][ C1] RDX: ffff88808740c440 RSI: 0000000000000008 RDI: ffff8880a1945988 [ 424.335251][ C1] RBP: 0000000140000002 R08: 0000000000000000 R09: ffffffff8c58fa27 [ 424.335258][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a8cf5a00 [ 424.335264][ C1] R13: 176e27f0aedc4fe1 R14: ffff8880a8cf5a20 R15: 176e27f0aedc4fe1 [ 424.335271][ C1] FS: 0000000001afd880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 424.335276][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 424.335282][ C1] CR2: 00007f80546d86c0 CR3: 00000000a8cfa000 CR4: 00000000001406f0 [ 424.335288][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 424.335295][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 424.335298][ C1] Call Trace: [ 424.335300][ C1] [ 424.335305][ C1] __netif_schedule+0x25/0x2d0 [ 424.335309][ C1] advance_sched+0x51a/0x990 [ 424.335313][ C1] __hrtimer_run_queues+0x6a9/0xfc0 [ 424.335317][ C1] ? taprio_dequeue_soft+0xa40/0xa40 [ 424.335322][ C1] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 424.335327][ C1] ? ktime_get_update_offsets_now+0x1c4/0x250 [ 424.335331][ C1] hrtimer_interrupt+0x32a/0x930 [ 424.335336][ C1] __sysvec_apic_timer_interrupt+0x142/0x5e0 [ 424.335340][ C1] asm_call_on_stack+0xf/0x20 [ 424.335343][ C1] [ 424.335348][ C1] sysvec_apic_timer_interrupt+0xe0/0x120 [ 424.335353][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 424.335357][ C1] RIP: 0010:on_each_cpu+0x149/0x240 [ 424.335371][ C1] Code: 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 e6 00 00 00 48 83 3d 97 12 4c 08 00 0f 84 af 00 00 00 e8 6c e9 0a 00 48 89 df 57 9d <0f> 1f 44 00 00 e8 5d e9 0a 00 bf 01 00 00 00 e8 83 a4 e6 ff 31 ff [ 424.335375][ C1] RSP: 0018:ffffc900018c7d70 EFLAGS: 00000293 [ 424.335384][ C1] RAX: 0000000000000000 RBX: 0000000000000293 RCX: 0000000000000000 [ 424.335390][ C1] RDX: ffff88808740c440 RSI: ffffffff8168cdf4 RDI: 0000000000000293 [ 424.335397][ C1] RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000000 [ 424.335403][ C1] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 424.335409][ C1] R13: 0000000000000000 R14: ffffc900018c7ed0 R15: ffffffffa0f93e68 [ 424.335413][ C1] ? on_each_cpu+0x144/0x240 [ 424.335417][ C1] clock_was_set+0x18/0x20 [ 424.335421][ C1] do_settimeofday64+0x350/0x4e0 [ 424.335425][ C1] ? cap_capable+0x1eb/0x250 [ 424.335430][ C1] ? change_clocksource+0x200/0x200 [ 424.335433][ C1] ? capable+0xdd/0x100 [ 424.335438][ C1] do_sys_settimeofday64+0x1de/0x260 [ 424.335442][ C1] __x64_sys_clock_settime+0x197/0x260 [ 424.335446][ C1] ? exit_itimers+0x2d0/0x2d0 [ 424.335451][ C1] ? lock_is_held_type+0xb0/0xe0 [ 424.335455][ C1] ? do_syscall_64+0x1c/0xe0 [ 424.335460][ C1] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 424.335464][ C1] do_syscall_64+0x60/0xe0 [ 424.335475][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 424.335478][ C1] RIP: 0033:0x443849 [ 424.335482][ C1] Code: Bad RIP value. [ 424.335487][ C1] RSP: 002b:00007ffe7e684f88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3 [ 424.335497][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443849 [ 424.335503][ C1] RDX: 0000000000443849 RSI: 0000000020000400 RDI: 0000000000000000 [ 424.335510][ C1] RBP: 00007ffe7e684f90 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 424.335516][ C1] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 00007ffe7e684fa0 [ 424.335522][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000