last executing test programs: 2.595078749s ago: executing program 1 (id=2): r0 = socket$nl_route(0x10, 0x3, 0x0) socket$nl_netfilter(0x10, 0x3, 0xc) bpf$ENABLE_STATS(0x20, 0x0, 0x0) r1 = bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0x3, &(0x7f0000000740)=@framed, &(0x7f0000000700)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90) bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000300)={&(0x7f00000002c0)='br_fdb_add\x00', r1}, 0x10) socket$nl_route(0x10, 0x3, 0x0) socket$nl_route(0x10, 0x3, 0x0) r2 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a) sendmsg$nl_route(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="580000001000030400"/20, @ANYRES32=0x0, @ANYBLOB="0ffe0000000000002800128009000100766c616e000000001800028006000100000000000c000300000000000000000008000500", @ANYRES32=r2, @ANYBLOB='\b\x00\n\x00', @ANYRESDEC=r2], 0x58}, 0x1, 0xba01}, 0x0) 0s ago: executing program 0 (id=1): r0 = socket$inet(0x2, 0x2, 0x0) setsockopt$sock_int(r0, 0x1, 0x2e, &(0x7f0000000180)=0x7b, 0x4) r1 = gettid() timer_create(0x0, &(0x7f0000000180)={0x0, 0x21, 0x4, @tid=r1}, &(0x7f00000000c0)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) timer_settime(0x0, 0x5, &(0x7f00000001c0)={{0x0, 0x989680}, {0x0, 0x989680}}, 0x0) recvmmsg(r0, &(0x7f00000066c0), 0xa0d, 0x0, 0x0) kernel console output (not intermixed with test programs): Warning: Permanently added '[localhost]:49966' (ED25519) to the list of known hosts. syzkaller login: [ 326.217293][ T3168] cgroup: Unknown subsys name 'net' [ 326.746775][ T3168] cgroup: Unknown subsys name 'cpuset' [ 326.882957][ T3168] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 381.659790][ T3168] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 449.460993][ T3174] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 449.550788][ T3174] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 454.011807][ T3176] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 454.207244][ T3176] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 461.175782][ T3174] hsr_slave_0: entered promiscuous mode [ 461.196874][ T3174] hsr_slave_1: entered promiscuous mode [ 463.810718][ T3176] hsr_slave_0: entered promiscuous mode [ 463.832975][ T3176] hsr_slave_1: entered promiscuous mode [ 463.855255][ T3176] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 463.858556][ T3176] Cannot create hsr debugfs directory [ 469.809657][ T3174] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 469.970411][ T3174] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 470.107739][ T3174] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 470.196579][ T3174] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 471.617433][ T3176] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 471.940137][ T3176] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 472.341906][ T3176] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 472.615838][ T3176] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 481.359901][ T3174] 8021q: adding VLAN 0 to HW filter on device bond0 [ 484.475192][ T3176] 8021q: adding VLAN 0 to HW filter on device bond0 [ 512.692289][ T3174] veth0_vlan: entered promiscuous mode [ 513.100510][ T3174] veth1_vlan: entered promiscuous mode [ 514.116766][ T3176] veth0_vlan: entered promiscuous mode [ 514.552319][ T3176] veth1_vlan: entered promiscuous mode [ 515.289049][ T3174] veth0_macvtap: entered promiscuous mode [ 515.590753][ T3174] veth1_macvtap: entered promiscuous mode [ 516.791859][ T3176] veth0_macvtap: entered promiscuous mode [ 517.248152][ T3174] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 517.251879][ T3174] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 517.285397][ T3174] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 517.288113][ T3174] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 517.419682][ T3176] veth1_macvtap: entered promiscuous mode [ 518.831652][ T3176] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 518.857196][ T3176] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 518.858738][ T3176] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 518.859865][ T3176] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 521.110028][ T3174] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 525.380406][ T3868] netlink: 8 bytes leftover after parsing attributes in process `syz.1.2'. [ 525.402457][ T3868] ================================================================== [ 525.404514][ T3868] BUG: KASAN: global-out-of-bounds in memcmp+0xc0/0xca [ 525.407600][ T3868] Read of size 1 at addr ffffffff89a26cc0 by task syz.1.2/3868 [ 525.409436][ T3868] [ 525.413099][ T3868] CPU: 0 UID: 0 PID: 3868 Comm: syz.1.2 Not tainted 6.14.0-rc1-syzkaller-g245aece3750d #0 [ 525.413738][ T3868] Hardware name: riscv-virtio,qemu (DT) [ 525.414347][ T3868] Call Trace: [ 525.414733][ T3868] [] dump_backtrace+0x2e/0x3c [ 525.415341][ T3868] [] show_stack+0x30/0x3c [ 525.415767][ T3868] [] dump_stack_lvl+0x12e/0x1a6 [ 525.416387][ T3868] [] print_report+0x28e/0x5aa [ 525.416925][ T3868] [] kasan_report+0xf0/0x214 [ 525.417537][ T3868] [] __asan_report_load1_noabort+0x12/0x1a [ 525.418201][ T3868] [] memcmp+0xc0/0xca [ 525.418583][ T3868] [] __hw_addr_add_ex+0xee/0x676 [ 525.419089][ T3868] [] dev_mc_add+0xac/0x108 [ 525.419573][ T3868] [] mrp_init_applicant+0xe8/0x56e [ 525.420080][ T3868] [] vlan_mvrp_init_applicant+0x26/0x30 [ 525.420591][ T3868] [] register_vlan_dev+0x1b4/0x922 [ 525.421029][ T3868] [] vlan_newlink+0x3ca/0x5fa [ 525.421529][ T3868] [] rtnl_newlink+0xbb4/0x1acc [ 525.421979][ T3868] [] rtnetlink_rcv_msg+0x9e2/0xdbe [ 525.422430][ T3868] [] netlink_rcv_skb+0x216/0x3dc [ 525.422988][ T3868] [] rtnetlink_rcv+0x26/0x30 [ 525.423585][ T3868] [] netlink_unicast+0x4f0/0x82c [ 525.424095][ T3868] [] netlink_sendmsg+0x864/0xdc6 [ 525.424688][ T3868] [] __sock_sendmsg+0xcc/0x160 [ 525.425163][ T3868] [] ____sys_sendmsg+0x5ce/0x79e [ 525.425599][ T3868] [] ___sys_sendmsg+0x144/0x1e6 [ 525.426057][ T3868] [] __sys_sendmsg+0x188/0x22a [ 525.426507][ T3868] [] __riscv_sys_sendmsg+0x70/0xa2 [ 525.427013][ T3868] [] syscall_handler+0x94/0x118 [ 525.427495][ T3868] [] do_trap_ecall_u+0x1aa/0x216 [ 525.428097][ T3868] [] handle_exception+0x146/0x152 [ 525.429027][ T3868] [ 525.451720][ T3868] The buggy address belongs to the variable: [ 525.452758][ T3868] vlan_mrp_app+0x60/0x3e80 [ 525.453992][ T3868] [ 525.454838][ T3868] The buggy address belongs to the physical page: [ 525.456439][ T3868] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x89c26 [ 525.458039][ T3868] flags: 0xffe000000002000(reserved|node=0|zone=0|lastcpupid=0x7ff) [ 525.461095][ T3868] raw: 0ffe000000002000 ffff8d8000270988 ffff8d8000270988 0000000000000000 [ 525.462483][ T3868] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 525.464049][ T3868] page dumped because: kasan: bad access detected [ 525.465476][ T3868] page_owner info is not present (never set?) [ 525.466587][ T3868] [ 525.467348][ T3868] Memory state around the buggy address: [ 525.468966][ T3868] ffffffff89a26b80: 00 00 00 00 00 00 00 00 f9 f9 f9 f9 00 00 00 00 [ 525.470276][ T3868] ffffffff89a26c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 525.471500][ T3868] >ffffffff89a26c80: 00 00 00 00 00 00 00 00 f9 f9 f9 f9 00 00 00 00 [ 525.472685][ T3868] ^ [ 525.474201][ T3868] ffffffff89a26d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 525.475493][ T3868] ffffffff89a26d80: f9 f9 f9 f9 00 00 00 00 f9 f9 f9 f9 00 00 00 00 [ 525.476765][ T3868] ================================================================== [ 525.480790][ T3868] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 525.483193][ T3868] CPU: 0 UID: 0 PID: 3868 Comm: syz.1.2 Not tainted 6.14.0-rc1-syzkaller-g245aece3750d #0 [ 525.484748][ T3868] Hardware name: riscv-virtio,qemu (DT) [ 525.485769][ T3868] Call Trace: [ 525.486598][ T3868] [] dump_backtrace+0x2e/0x3c [ 525.488057][ T3868] [] show_stack+0x30/0x3c [ 525.489346][ T3868] [] dump_stack_lvl+0x110/0x1a6 [ 525.490858][ T3868] [] dump_stack+0x1c/0x24 [ 525.492270][ T3868] [] panic+0x38c/0x86a [ 525.493678][ T3868] [] check_panic_on_warn+0xc0/0xe4 [ 525.495091][ T3868] [] end_report.part.0+0x4e/0xae [ 525.496622][ T3868] [] kasan_report+0x13a/0x214 [ 525.498360][ T3868] [] __asan_report_load1_noabort+0x12/0x1a [ 525.499997][ T3868] [] memcmp+0xc0/0xca [ 525.501452][ T3868] [] __hw_addr_add_ex+0xee/0x676 [ 525.502774][ T3868] [] dev_mc_add+0xac/0x108 [ 525.504078][ T3868] [] mrp_init_applicant+0xe8/0x56e [ 525.505451][ T3868] [] vlan_mvrp_init_applicant+0x26/0x30 [ 525.506867][ T3868] [] register_vlan_dev+0x1b4/0x922 [ 525.508157][ T3868] [] vlan_newlink+0x3ca/0x5fa [ 525.509506][ T3868] [] rtnl_newlink+0xbb4/0x1acc [ 525.510732][ T3868] [] rtnetlink_rcv_msg+0x9e2/0xdbe [ 525.512073][ T3868] [] netlink_rcv_skb+0x216/0x3dc [ 525.513839][ T3868] [] rtnetlink_rcv+0x26/0x30 [ 525.515419][ T3868] [] netlink_unicast+0x4f0/0x82c [ 525.516819][ T3868] [] netlink_sendmsg+0x864/0xdc6 [ 525.518395][ T3868] [] __sock_sendmsg+0xcc/0x160 [ 525.519711][ T3868] [] ____sys_sendmsg+0x5ce/0x79e [ 525.521058][ T3868] [] ___sys_sendmsg+0x144/0x1e6 [ 525.522511][ T3868] [] __sys_sendmsg+0x188/0x22a [ 525.523936][ T3868] [] __riscv_sys_sendmsg+0x70/0xa2 [ 525.525294][ T3868] [] syscall_handler+0x94/0x118 [ 525.526627][ T3868] [] do_trap_ecall_u+0x1aa/0x216 [ 525.528007][ T3868] [] handle_exception+0x146/0x152 [ 525.529808][ T3868] SMP: stopping secondary CPUs [ 525.532454][ T3868] Rebooting in 86400 seconds.. VM DIAGNOSIS: 09:10:53 Registers: info registers vcpu 0 CPU#0 V = 0 pc ffffffff8034ff8a mhartid 0000000000000000 mstatus 0000000a000000a0 hstatus 0000000200000000 vsstatus 0000000a00000000 mip 0000000000000220 mie 000000000000022a mideleg 0000000000001666 hideleg 0000000000000444 medeleg 0000000000f0b509 hedeleg 000000000000b109 mtvec 00000000800004f0 stvec ffffffff86268630 vstvec 0000000000000000 mepc ffffffff80088636 sepc ffffffff80075696 vsepc 0000000000000000 mcause 0000000000000009 scause 8000000000000005 vscause 0000000000000000 mtval 0000000000000000 stval 0000000000000000 htval 0000000000000000 mtval2 0000000000000000 mscratch 000000008004a000 sscratch 0000000000000000 satp 901ad000000980d1 x0/zero 0000000000000000 x1/ra ffffffff802f8cc8 x2/sp ffff8f800d6e6830 x3/gp ffffffff89c1d3c0 x4/tp ffffaf801b19cec0 x5/t0 ffff8f800d6e6934 x6/t1 fffffffef1384ca8 x7/t2 7320666f20646165 x8/s0 ffff8f800d6e6880 x9/s1 ffffffff882e44e0 x10/a0 ffffffff882e44e0 x11/a1 0000000000000000 x12/a2 0000000000000002 x13/a3 ffffffff802f3b20 x14/a4 0000000000000000 x15/a5 0000000000000001 x16/a6 0000000000000003 x17/a7 0000000000000003 x18/s2 0000000000000000 x19/s3 0000000200000020 x20/s4 0000000000000000 x21/s5 ffff8f800d6e6a60 x22/s6 0000000000000000 x23/s7 1ffff1f001adcd50 x24/s8 ffff8f800d6e6930 x25/s9 1ffff1f001adcd20 x26/s10 dfffffff00000000 x27/s11 ffff8f800d6e69a0 x28/t3 ffffffff802cb7e4 x29/t4 fffffffef1384ca8 x30/t5 fffffffef1384ca9 x31/t6 ffff8f800d6e65d8 fcsr 0000000000000000 f0/ft0 0000000000000000 f1/ft1 0000000000000000 f2/ft2 0000000000000000 f3/ft3 0000000000000000 f4/ft4 0000000000000000 f5/ft5 0000000000000000 f6/ft6 0000000000000000 f7/ft7 0000000000000000 f8/fs0 0000000000000000 f9/fs1 0000000000000000 f10/fa0 0000000000000000 f11/fa1 0000000000000000 f12/fa2 0000000000000000 f13/fa3 0000000000000000 f14/fa4 0000000000000000 f15/fa5 0000000000000000 f16/fa6 0000000000000000 f17/fa7 0000000000000000 f18/fs2 0000000000000000 f19/fs3 0000000000000000 f20/fs4 0000000000000000 f21/fs5 0000000000000000 f22/fs6 0000000000000000 f23/fs7 0000000000000000 f24/fs8 0000000000000000 f25/fs9 0000000000000000 f26/fs10 0000000000000000 f27/fs11 0000000000000000 f28/ft8 0000000000000000 f29/ft9 0000000000000000 f30/ft10 0000000000000000 f31/ft11 0000000000000000 info registers vcpu 1 CPU#1 V = 0 pc ffffffff804dbe82 mhartid 0000000000000001 mstatus 0000000a000000a0 hstatus 0000000200000000 vsstatus 0000000a00000000 mip 0000000000000000 mie 000000000000022a mideleg 0000000000001666 hideleg 0000000000000444 medeleg 0000000000f0b509 hedeleg 000000000000b109 mtvec 00000000800004f0 stvec ffffffff86268630 vstvec 0000000000000000 mepc ffffffff8626730e sepc ffffffff86266352 vsepc 0000000000000000 mcause 8000000000000003 scause 8000000000000005 vscause 0000000000000000 mtval 0000000000000000 stval 0000000000000000 htval 0000000000000000 mtval2 0000000000000000 mscratch 0000000080048000 sscratch 0000000000000000 satp 9012b000000af6f1 x0/zero 0000000000000000 x1/ra ffffffff80a70bdc x2/sp ffff8f80001d6ff0 x3/gp ffffffff89c1d3c0 x4/tp ffffaf801c631a40 x5/t0 fffff5ef05fca000 x6/t1 fffffffef21e97de x7/t2 0000000000000000 x8/s0 ffff8f80001d70f0 x9/s1 0000000000000003 x10/a0 ffffaf801c631a48 x11/a1 0000000000000004 x12/a2 0000000000000000 x13/a3 1ffff5f0038c634c x14/a4 0000000000000002 x15/a5 0000000000000000 x16/a6 ffffffff8d421760 x17/a7 0000000000040000 x18/s2 0000000000000002 x19/s3 0000000000048017 x20/s4 0000000000000003 x21/s5 ffffffff89d91120 x22/s6 ffffffff89c5c940 x23/s7 0000000000000000 x24/s8 000000006d27f146 x25/s9 0000000000000008 x26/s10 ffff8d8000bf9200 x27/s11 0000020000000000 x28/t3 ffffaf801c632570 x29/t4 1ffff5f0038c64ad x30/t5 1ffff5f0038c64bc x31/t6 000000000000000f fcsr 0000000000000000 f0/ft0 0000000000000000 f1/ft1 0000000000000000 f2/ft2 0000000000000000 f3/ft3 0000000000000000 f4/ft4 0000000000000000 f5/ft5 0000000000000000 f6/ft6 0000000000000000 f7/ft7 0000000000000000 f8/fs0 0000000000000000 f9/fs1 0000000000000000 f10/fa0 0000000000000000 f11/fa1 0000000000000000 f12/fa2 0000000000000000 f13/fa3 0000000000000000 f14/fa4 0000000000000000 f15/fa5 0000000000000000 f16/fa6 0000000000000000 f17/fa7 0000000000000000 f18/fs2 0000000000000000 f19/fs3 0000000000000000 f20/fs4 0000000000000000 f21/fs5 0000000000000000 f22/fs6 0000000000000000 f23/fs7 0000000000000000 f24/fs8 0000000000000000 f25/fs9 0000000000000000 f26/fs10 0000000000000000 f27/fs11 0000000000000000 f28/ft8 0000000000000000 f29/ft9 0000000000000000 f30/ft10 0000000000000000 f31/ft11 0000000000000000