last executing test programs: 13.49015361s ago: executing program 1 (id=52): r0 = openat$sequencer(0xffffffffffffff9c, &(0x7f0000000480), 0x0, 0x0) lseek(r0, 0x0, 0x0) 13.002731453s ago: executing program 0 (id=53): r0 = socket$netlink(0x10, 0x3, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) write$RDMA_USER_CM_CMD_NOTIFY(r1, &(0x7f0000000040)={0xf, 0x8}, 0x10) 11.807170159s ago: executing program 1 (id=54): r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000000080)={0x26, 'hash\x00', 0x0, 0x0, 'sha3-384\x00'}, 0x58) r1 = accept4(r0, 0x0, 0x0, 0x0) sendmsg$IPCTNL_MSG_EXP_GET(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000140)={0x0}}, 0x0) 11.23232362s ago: executing program 0 (id=55): r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000000000)={0x26, 'hash\x00', 0x0, 0x0, 'ghash\x00'}, 0x58) setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, &(0x7f0000000440)="0000001000"/16, 0x10) r1 = accept4$alg(r0, 0x0, 0x0, 0x0) sendmmsg(r1, 0x0, 0x0, 0x0) 9.783550759s ago: executing program 1 (id=56): r0 = openat$pidfd(0xffffffffffffff9c, &(0x7f0000000640), 0x0, 0x0) tee(0xffffffffffffffff, r0, 0x0, 0x0) 9.024404017s ago: executing program 0 (id=57): r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IPVS_CMD_SET_SERVICE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x14}, 0x14}}, 0x10) 7.467934815s ago: executing program 1 (id=58): r0 = epoll_create1(0x0) r1 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, r1, &(0x7f00000000c0)) epoll_ctl$EPOLL_CTL_MOD(r0, 0x3, r1, &(0x7f0000000040)) 6.299929809s ago: executing program 0 (id=59): r0 = socket$inet6(0xa, 0x2, 0x0) getsockopt$inet_sctp6_SCTP_GET_PEER_ADDR_INFO(r0, 0x84, 0xf, 0x0, 0x0) 4.398746439s ago: executing program 1 (id=60): r0 = landlock_create_ruleset(&(0x7f0000000080)={0x8000}, 0x10, 0x0) landlock_restrict_self(r0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x431c1, 0x0) close_range(r1, 0xffffffffffffffff, 0x0) openat$tun(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$PIO_SCRNMAP(r1, 0x4b41, 0x0) 2.440339463s ago: executing program 0 (id=61): r0 = socket(0x1d, 0x2, 0x6) sendmsg$NL80211_CMD_NEW_MPATH(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000080)={0x0}}, 0x0) 1.392183106s ago: executing program 1 (id=62): r0 = socket$nl_audit(0x10, 0x3, 0x9) setsockopt$netlink_NETLINK_LISTEN_ALL_NSID(r0, 0x10e, 0x8, &(0x7f0000000000)=0x19f1, 0x4) r1 = socket$nl_netfilter(0x10, 0x3, 0xc) write$vga_arbiter(0xffffffffffffffff, &(0x7f0000000040)=@target={'target ', {'PCI:', '14', ':', 'e', ':', '17', '.', 'd'}}, 0x15) r2 = socket$inet_mptcp(0x2, 0x1, 0x106) ioctl$sock_inet_SIOCGARP(r2, 0x8954, &(0x7f0000000080)={{0x2, 0x4e21, @local}, {0x306, @local}, 0x40, {0x2, 0x4e20, @initdev={0xac, 0x1e, 0x0, 0x0}}, 'erspan0\x00'}) setsockopt$ARPT_SO_SET_ADD_COUNTERS(0xffffffffffffffff, 0x0, 0x61, &(0x7f0000000100)={'filter\x00', 0x4}, 0x68) r3 = socket$can_raw(0x1d, 0x3, 0x1) getsockopt$CAN_RAW_LOOPBACK(r3, 0x65, 0x3, &(0x7f0000000180), &(0x7f00000001c0)=0x4) r4 = syz_open_dev$vcsn(&(0x7f0000000200), 0x6e62, 0x44000) r5 = syz_genetlink_get_family_id$ethtool(&(0x7f0000000280), 0xffffffffffffffff) sendmsg$ETHTOOL_MSG_RINGS_SET(r4, &(0x7f0000000340)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x3c, r5, 0x300, 0x0, 0x25dfdbfe, {}, [@ETHTOOL_A_RINGS_TX={0x8, 0x9, 0x8000}, @ETHTOOL_A_RINGS_RX={0x8, 0x6, 0x99}, @ETHTOOL_A_RINGS_RX_MINI={0x8, 0x7, 0x3}, @ETHTOOL_A_RINGS_RX_JUMBO={0x8, 0x8, 0x1}, @ETHTOOL_A_RINGS_RX={0x8, 0x6, 0x80}]}, 0x3c}}, 0x14) ioctl$sock_SIOCINQ(0xffffffffffffffff, 0x541b, &(0x7f0000000380)) listen(r1, 0x0) bpf$LINK_DETACH(0x22, &(0x7f0000000540)=r2, 0x4) r6 = socket$nl_crypto(0x10, 0x3, 0x15) ioctl$sock_SIOCSIFVLAN_ADD_VLAN_CMD(r6, 0x8983, &(0x7f0000000580)={0x0, 'ip6_vti0\x00'}) 0s ago: executing program 0 (id=63): r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_MSG_GETCHAIN(r0, &(0x7f00000008c0)={0x0, 0x0, &(0x7f0000000880)={&(0x7f0000000800)={0x14}, 0x14}}, 0x10) kernel console output (not intermixed with test programs): Warning: Permanently added '[localhost]:56157' (ED25519) to the list of known hosts. syzkaller login: [ 340.410020][ T3049] cgroup: Unknown subsys name 'net' [ 340.946709][ T3049] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 394.499272][ T3049] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 451.539227][ T3055] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 451.956341][ T3055] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 459.715635][ T3064] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 460.033459][ T3064] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 463.976121][ T3055] hsr_slave_0: entered promiscuous mode [ 464.020400][ T3055] hsr_slave_1: entered promiscuous mode [ 470.305481][ T3055] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 470.433973][ T3055] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 470.822050][ T3055] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 471.420475][ T3055] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 471.620349][ T3064] hsr_slave_0: entered promiscuous mode [ 471.637382][ T3064] hsr_slave_1: entered promiscuous mode [ 471.647822][ T3064] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 471.652671][ T3064] Cannot create hsr debugfs directory [ 476.321067][ T3064] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 476.423818][ T3064] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 476.525015][ T3064] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 476.712525][ T3064] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 481.361454][ T3055] 8021q: adding VLAN 0 to HW filter on device bond0 [ 486.415108][ T3064] 8021q: adding VLAN 0 to HW filter on device bond0 [ 520.855884][ T3055] veth0_vlan: entered promiscuous mode [ 521.236206][ T3055] veth1_vlan: entered promiscuous mode [ 522.473501][ T3064] veth0_vlan: entered promiscuous mode [ 523.031314][ T3055] veth0_macvtap: entered promiscuous mode [ 523.182550][ T3064] veth1_vlan: entered promiscuous mode [ 523.494487][ T3055] veth1_macvtap: entered promiscuous mode [ 525.473679][ T3064] veth0_macvtap: entered promiscuous mode [ 525.623732][ T3055] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 525.627729][ T3055] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 525.636462][ T3055] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 525.650413][ T3055] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 525.855065][ T3064] veth1_macvtap: entered promiscuous mode [ 528.122315][ T3064] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 528.125986][ T3064] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 528.130907][ T3064] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 528.134224][ T3064] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 589.017028][ T3832] Zero length message leads to an empty skb [ 624.362599][ T3898] ================================================================== [ 624.363956][ T3898] BUG: KASAN: global-out-of-bounds in memcmp+0xc0/0xca [ 624.365070][ T3898] Read of size 1 at addr ffffffff89077f80 by task syz.1.62/3898 [ 624.366083][ T3898] [ 624.367102][ T3898] CPU: 1 PID: 3898 Comm: syz.1.62 Not tainted 6.10.0-rc6-syzkaller-gc562ba719df5 #0 [ 624.369905][ T3898] Hardware name: riscv-virtio,qemu (DT) [ 624.370803][ T3898] Call Trace: [ 624.371473][ T3898] [] dump_backtrace+0x2e/0x3c [ 624.372389][ T3898] [] show_stack+0x34/0x40 [ 624.373286][ T3898] [] dump_stack_lvl+0x122/0x196 [ 624.374224][ T3898] [] print_report+0x288/0x596 [ 624.375170][ T3898] [] kasan_report+0xec/0x118 [ 624.375938][ T3898] [] __asan_report_load1_noabort+0x12/0x1a [ 624.376862][ T3898] [] memcmp+0xc0/0xca [ 624.377797][ T3898] [] __hw_addr_add_ex+0xee/0x676 [ 624.379040][ T3898] [] dev_mc_add+0xac/0x108 [ 624.379889][ T3898] [] mrp_init_applicant+0xe8/0x56e [ 624.380696][ T3898] [] vlan_mvrp_init_applicant+0x26/0x30 [ 624.381880][ T3898] [] register_vlan_dev+0x1b4/0x922 [ 624.383197][ T3898] [] vlan_ioctl_handler+0x54e/0x956 [ 624.384484][ T3898] [] sock_ioctl+0x1f6/0x61a [ 624.385321][ T3898] [] __riscv_sys_ioctl+0x186/0x1d6 [ 624.386079][ T3898] [] syscall_handler+0x94/0x118 [ 624.386933][ T3898] [] do_trap_ecall_u+0x14c/0x214 [ 624.388357][ T3898] [] ret_from_exception+0x0/0x64 [ 624.389781][ T3898] [ 624.390280][ T3898] The buggy address belongs to the variable: [ 624.391050][ T3898] vlan_mrp_app+0x60/0x3e80 [ 624.391777][ T3898] [ 624.392239][ T3898] The buggy address belongs to the physical page: [ 624.393936][ T3898] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x89277 [ 624.395568][ T3898] flags: 0xffe000000002000(reserved|node=0|zone=0|lastcpupid=0x7ff) [ 624.398691][ T3898] raw: 0ffe000000002000 ff1c000000249dc8 ff1c000000249dc8 0000000000000000 [ 624.400116][ T3898] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 624.401498][ T3898] page dumped because: kasan: bad access detected [ 624.402837][ T3898] page_owner info is not present (never set?) [ 624.403942][ T3898] [ 624.404665][ T3898] Memory state around the buggy address: [ 624.406199][ T3898] ffffffff89077e80: f9 f9 f9 f9 00 00 00 00 00 00 00 00 00 00 00 00 [ 624.407487][ T3898] ffffffff89077f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 624.408735][ T3898] >ffffffff89077f80: f9 f9 f9 f9 00 00 00 00 00 00 00 00 00 00 00 00 [ 624.410131][ T3898] ^ [ 624.411193][ T3898] ffffffff89078000: 00 00 00 00 00 00 00 00 f9 f9 f9 f9 00 00 00 00 [ 624.412373][ T3898] ffffffff89078080: f9 f9 f9 f9 00 00 00 00 00 00 00 00 00 00 00 00 [ 624.413776][ T3898] ================================================================== [ 624.417444][ T3898] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 624.419525][ T3898] CPU: 1 PID: 3898 Comm: syz.1.62 Not tainted 6.10.0-rc6-syzkaller-gc562ba719df5 #0 [ 624.420985][ T3898] Hardware name: riscv-virtio,qemu (DT) [ 624.422017][ T3898] Call Trace: [ 624.422860][ T3898] [] dump_backtrace+0x2e/0x3c [ 624.424267][ T3898] [] show_stack+0x34/0x40 [ 624.425511][ T3898] [] dump_stack_lvl+0x108/0x196 [ 624.426955][ T3898] [] dump_stack+0x1c/0x24 [ 624.428448][ T3898] [] panic+0x382/0x800 [ 624.429757][ T3898] [] check_panic_on_warn+0xc0/0xe4 [ 624.431066][ T3898] [] end_report.part.0+0x4a/0xaa [ 624.432549][ T3898] [] kasan_report+0x102/0x118 [ 624.433851][ T3898] [] __asan_report_load1_noabort+0x12/0x1a [ 624.435295][ T3898] [] memcmp+0xc0/0xca [ 624.436553][ T3898] [] __hw_addr_add_ex+0xee/0x676 [ 624.438021][ T3898] [] dev_mc_add+0xac/0x108 [ 624.439524][ T3898] [] mrp_init_applicant+0xe8/0x56e [ 624.440949][ T3898] [] vlan_mvrp_init_applicant+0x26/0x30 [ 624.442368][ T3898] [] register_vlan_dev+0x1b4/0x922 [ 624.443854][ T3898] [] vlan_ioctl_handler+0x54e/0x956 [ 624.445422][ T3898] [] sock_ioctl+0x1f6/0x61a [ 624.446802][ T3898] [] __riscv_sys_ioctl+0x186/0x1d6 [ 624.448208][ T3898] [] syscall_handler+0x94/0x118 [ 624.449557][ T3898] [] do_trap_ecall_u+0x14c/0x214 [ 624.450965][ T3898] [] ret_from_exception+0x0/0x64 [ 624.452796][ T3898] SMP: stopping secondary CPUs [ 624.455824][ T3898] Rebooting in 86400 seconds.. VM DIAGNOSIS: 05:15:42 Registers: info registers vcpu 0 CPU#0 V = 0 pc ffffffff8040f6a0 mhartid 0000000000000000 mstatus 0000000a000001a2 hstatus 0000000200000000 vsstatus 0000000a00000000 mip 0000000000000020 mie 000000000000022a mideleg 0000000000001666 hideleg 0000000000000000 medeleg 0000000000f0b509 hedeleg 0000000000000000 mtvec 0000000080000428 stvec ffffffff85cb3190 vstvec 0000000000000000 mepc ffffffff8001cae8 sepc ffffffff8023436a vsepc 0000000000000000 mcause 0000000000000009 scause 8000000000000009 vscause 0000000000000000 mtval 0000000000000000 stval 0000000000000000 htval 0000000000000000 mtval2 0000000000000000 mscratch 0000000080029000 sscratch 0000000000000000 satp a021000000096259 x0/zero 0000000000000000 x1/ra ffffffff8000f3ba x2/sp ff200000000025e0 x3/gp ffffffff8925ab80 x4/tp ff60000015681a40 x5/t0 ff20000000002930 x6/t1 000000000000000f x7/t2 0000000000000090 x8/s0 ff20000000002660 x9/s1 ff20000000002e70 x10/a0 ffffffff850f9328 x11/a1 ffffffff85cb3264 x12/a2 0000000000000000 x13/a3 ffffffff8000f396 x14/a4 0000000000000000 x15/a5 0000000000000000 x16/a6 0000000000ff0100 x17/a7 0000000053bcce52 x18/s2 ff20000000002e60 x19/s3 000000000000000d x20/s4 ffffffff850f9328 x21/s5 0000000000000000 x22/s6 ffffffff850f236a x23/s7 dfffffff00000000 x24/s8 dfffffff00000000 x25/s9 ffffffff85cb3264 x26/s10 0000000000003fff x27/s11 ff20000000003120 x28/t3 6b67bc5853cf2ec2 x29/t4 ffebffff01fe9e48 x30/t5 ffebffff01fe9e49 x31/t6 1fec000002ad04e2 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 ffffffff80245ffe mhartid 0000000000000001 mstatus 0000000a000000a0 hstatus 0000000200000000 vsstatus 0000000a00000000 mip 0000000000000020 mie 000000000000022a mideleg 0000000000001666 hideleg 0000000000000000 medeleg 0000000000f0b509 hedeleg 0000000000000000 mtvec 0000000080000428 stvec ffffffff85cb3190 vstvec 0000000000000000 mepc ffffffff8021cf5e sepc 00000000000f84d8 vsepc 0000000000000000 mcause 8000000000000003 scause 0000000000000008 vscause 0000000000000000 mtval 0000000000000000 stval 0000000000000000 htval 0000000000000000 mtval2 0000000000000000 mscratch 0000000080027000 sscratch 0000000000000000 satp a020f000000a66d4 x0/zero 0000000000000000 x1/ra ffffffff80245f9a x2/sp ff200000097aaf80 x3/gp ffffffff8925ab80 x4/tp ff60000016ae0000 x5/t0 ff200000097ab0e0 x6/t1 0000000000000054 x7/t2 49502031203a5550 x8/s0 ff200000097ab070 x9/s1 ff200000097ab0e7 x10/a0 0000000000000016 x11/a1 0000000000000000 x12/a2 0000000000040000 x13/a3 0000000000000020 x14/a4 0000000000000000 x15/a5 0000000000000001 x16/a6 0000000000000003 x17/a7 ff200000097ab047 x18/s2 0000000000000017 x19/s3 1fe40000012f55f4 x20/s4 ff200000097ab0e6 x21/s5 ff200000097ab0de x22/s6 0000000000000054 x23/s7 0000000000000f3a x24/s8 0000000000000001 x25/s9 0000000000000000 x26/s10 1fe40000012f5648 x27/s11 ff200000097ab240 x28/t3 ff200000097ab0e0 x29/t4 ff200000097ab0e0 x30/t5 ffe3ffff012f5609 x31/t6 ff200000097ab0e6 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