Warning: Permanently added '10.128.10.26' (ED25519) to the list of known hosts. syzkaller login: [ 38.629735][ T3961] chnl_net:caif_netlink_parms(): no params data found [ 38.665366][ T3961] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.667078][ T3961] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.669494][ T3961] device bridge_slave_0 entered promiscuous mode [ 38.673574][ T3961] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.675351][ T3961] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.677721][ T3961] device bridge_slave_1 entered promiscuous mode [ 38.693188][ T3961] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 38.697282][ T3961] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 38.712302][ T3961] team0: Port device team_slave_0 added [ 38.715370][ T3961] team0: Port device team_slave_1 added [ 38.727803][ T3961] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 38.729539][ T3961] 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. [ 38.735347][ T3961] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 38.739749][ T3961] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 38.741416][ T3961] 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. [ 38.747445][ T3961] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 38.819548][ T3961] device hsr_slave_0 entered promiscuous mode [ 38.857840][ T3961] device hsr_slave_1 entered promiscuous mode [ 38.978440][ T3961] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 39.019415][ T3961] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 39.071844][ T3961] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 39.129403][ T3961] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 39.184303][ T3961] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.186036][ T3961] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.188109][ T3961] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.189832][ T3961] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.231793][ T3961] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.238951][ T1947] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.242738][ T1947] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.245586][ T1947] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.248992][ T1947] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 39.256211][ T3961] 8021q: adding VLAN 0 to HW filter on device team0 [ 39.262383][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.264719][ T25] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.266288][ T25] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.279337][ T1947] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.281462][ T1947] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.283086][ T1947] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.285743][ T1947] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 39.289898][ T1947] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 39.294345][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 39.303738][ T3961] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 39.306266][ T3961] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 39.310693][ T1947] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.313249][ T1947] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.315522][ T1947] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 39.325849][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 39.327597][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 39.334238][ T3961] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 39.347218][ T1947] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 39.360304][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 39.362847][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 39.364995][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 39.371555][ T3961] device veth0_vlan entered promiscuous mode [ 39.378787][ T3961] device veth1_vlan entered promiscuous mode [ 39.391889][ T1947] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 39.394021][ T1947] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 39.396455][ T1947] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 39.401235][ T3961] device veth0_macvtap entered promiscuous mode [ 39.405470][ T3961] device veth1_macvtap entered promiscuous mode [ 39.419293][ T3961] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 39.420978][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 39.423808][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 39.430821][ T3961] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 39.432775][ T3967] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 39.436768][ T3961] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.440167][ T3961] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.442025][ T3961] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.443881][ T3961] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.493377][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 39.495174][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 39.499562][ T3967] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 39.512150][ T136] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 39.514169][ T136] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 39.516512][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program [ 39.592450][ T3972] ------------[ cut here ]------------ [ 39.593750][ T3972] WARNING: CPU: 1 PID: 3972 at net/kcm/kcmsock.c:633 kcm_write_msgs+0x800/0xfc0 [ 39.595793][ T3972] Modules linked in: [ 39.596707][ T3972] CPU: 1 PID: 3972 Comm: syz-executor258 Not tainted 5.15.156-syzkaller #0 [ 39.598691][ T3972] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 39.600989][ T3972] pstate: 80401005 (Nzcv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 39.602744][ T3972] pc : kcm_write_msgs+0x800/0xfc0 [ 39.603911][ T3972] lr : kcm_write_msgs+0x7fc/0xfc0 [ 39.605058][ T3972] sp : ffff80001cb37620 [ 39.605992][ T3972] x29: ffff80001cb376a0 x28: 00000000ffffffea x27: dfff800000000000 [ 39.607881][ T3972] x26: 0000000000220000 x25: ffff0000df914800 x24: ffff0000d7ee8000 [ 39.609645][ T3972] x23: ffff0000d9f358c0 x22: ffff0000d9f35a00 x21: 0000000000000011 [ 39.611590][ T3972] x20: ffff0000da37b400 x19: 0000000000000000 x18: 0000000000000000 [ 39.613339][ T3972] x17: 0000000000000000 x16: ffff8000084c4340 x15: 0000000000000001 [ 39.615226][ T3972] x14: 1ffff0000292806a x13: dfff800000000000 x12: 0000000000000003 [ 39.617026][ T3972] x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000d5949b40 [ 39.618886][ T3972] x8 : ffff800010f302d0 x7 : 0000000000000000 x6 : 0000000000000000 [ 39.620813][ T3972] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff80000804685c [ 39.622752][ T3972] x2 : 0000000000000006 x1 : 0000000000000000 x0 : 0000000000000000 [ 39.624542][ T3972] Call trace: [ 39.625338][ T3972] kcm_write_msgs+0x800/0xfc0 [ 39.626386][ T3972] kcm_sendmsg+0x1918/0x1ed8 [ 39.627485][ T3972] sock_write_iter+0x2b0/0x3f8 [ 39.628558][ T3972] vfs_write+0x87c/0xb3c [ 39.629472][ T3972] ksys_write+0x15c/0x26c [ 39.630526][ T3972] __arm64_sys_write+0x7c/0x90 [ 39.631530][ T3972] invoke_syscall+0x98/0x2b8 [ 39.632552][ T3972] el0_svc_common+0x138/0x258 [ 39.633607][ T3972] do_el0_svc+0x58/0x14c [ 39.634516][ T3972] el0_svc+0x7c/0x1f0 [ 39.635484][ T3972] el0t_64_sync_handler+0x84/0xe4 [ 39.636734][ T3972] el0t_64_sync+0x1a0/0x1a4 [ 39.637788][ T3972] irq event stamp: 17798 [ 39.638809][ T3972] hardirqs last enabled at (17797): [] __local_bh_enable_ip+0x230/0x470 [ 39.641217][ T3972] hardirqs last disabled at (17798): [] el1_dbg+0x24/0x80 [ 39.643238][ T3972] softirqs last enabled at (17796): [] release_sock+0x1e4/0x270 [ 39.645399][ T3972] softirqs last disabled at (17794): [] release_sock+0x3c/0x270 [ 39.647563][ T3972] ---[ end trace f599c1dd0ca5049e ]--- [ 39.652776][ T3972] KCM: Hard failure on kcm_write_msgs executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program