[ 111.304566][ T3140] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 111.318455][ T3140] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:25998' (ECDSA) to the list of known hosts. 1970/01/01 00:02:13 fuzzer started 1970/01/01 00:02:16 connecting to host at localhost:46531 1970/01/01 00:02:16 checking machine... 1970/01/01 00:02:17 checking revisions... 1970/01/01 00:02:17 testing simple program... executing program executing program [ 145.180135][ T3310] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 145.225943][ T3310] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link executing program [ 147.689331][ T3310] device hsr_slave_0 entered promiscuous mode [ 147.753127][ T3310] device hsr_slave_1 entered promiscuous mode [ 149.905295][ T3310] netdevsim netdevsim0 netdevsim0: renamed from eth0 executing program [ 150.047513][ T3310] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 150.178552][ T3310] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 150.289747][ T3310] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 152.525155][ T3310] 8021q: adding VLAN 0 to HW filter on device bond0 [ 152.715834][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 152.736538][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready executing program [ 153.927536][ T3509] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 153.937373][ T3509] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 154.026741][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 154.038735][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 154.146257][ T3509] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 154.248843][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 154.465327][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 154.487423][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 154.598290][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 154.617432][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 154.730008][ T3310] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 155.046839][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 155.049700][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready executing program [ 157.580450][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 157.603723][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 158.812422][ T3436] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 158.833530][ T3436] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 158.864112][ T3436] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 158.897890][ T3436] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 158.937693][ T3310] device veth0_vlan entered promiscuous mode executing program [ 159.107704][ T3310] device veth1_vlan entered promiscuous mode [ 159.590652][ T3436] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 159.613098][ T3436] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 159.688895][ T3310] device veth0_macvtap entered promiscuous mode [ 159.817099][ T3310] device veth1_macvtap entered promiscuous mode [ 159.840226][ T3436] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 159.853847][ T3436] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 160.070282][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 160.100678][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 160.211060][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 160.227823][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 160.320827][ T3310] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 160.325452][ T3310] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 160.326688][ T3310] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 160.327830][ T3310] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 161.306052][ T3310] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation executing program [ 162.300333][ T118] ------------[ cut here ]------------ 1970/01/01 00:02:41 building call list... [ 162.333797][ T118] hook not found, pf 3 num 0 [ 162.334691][ T118] WARNING: CPU: 1 PID: 118 at net/netfilter/core.c:480 __nf_unregister_net_hook+0xac/0x1d0 [ 162.341468][ T118] Modules linked in: [ 162.342605][ T118] CPU: 1 PID: 118 Comm: kworker/u4:3 Not tainted 5.12.0-syzkaller-13661-gd835ff6c96ae #0 [ 162.344191][ T118] Hardware name: linux,dummy-virt (DT) [ 162.346562][ T118] Workqueue: netns cleanup_net [ 162.347723][ T118] pstate: 60400009 (nZCv daif +PAN -UAO -TCO BTYPE=--) [ 162.348671][ T118] pc : __nf_unregister_net_hook+0xac/0x1d0 [ 162.349724][ T118] lr : __nf_unregister_net_hook+0xac/0x1d0 [ 162.350863][ T118] sp : ffff800012d8bc80 [ 162.351598][ T118] x29: ffff800012d8bc80 x28: f2ff000003018000 [ 162.353094][ T118] x27: ffff800012739810 x26: ffff8000128f3cc0 [ 162.354551][ T118] x25: ffff8000128f3e40 x24: fdff000009841c00 [ 162.355628][ T118] x23: faff000005f809f0 x22: faff000005f80000 [ 162.356845][ T118] x21: ffff8000128fbe10 x20: 0000000000000003 [ 162.358118][ T118] x19: fdff0000056d5300 x18: 00000000fffffffe [ 162.359172][ T118] x17: 0000000000000000 x16: 0000000000000001 [ 162.360220][ T118] x15: 0000000000000020 x14: ffffffffffffffff [ 162.361548][ T118] x13: 00000000000002fa x12: ffff800012d8b950 [ 162.362675][ T118] x11: ffff8000127f0d90 x10: ffff80001274cc10 [ 162.363936][ T118] x9 : ffff8000127ec620 x8 : ffff80001273c620 [ 162.365396][ T118] x7 : ffff8000127ec620 x6 : fffffffffffcbde0 [ 162.366842][ T118] x5 : ffff00007fbd0948 x4 : 0000000000015ff5 [ 162.368382][ T118] x3 : 0000000000000001 x2 : 0000000000000000 [ 162.369872][ T118] x1 : 0000000000000000 x0 : f3ff0000032fbd00 [ 162.371480][ T118] Call trace: [ 162.372785][ T118] __nf_unregister_net_hook+0xac/0x1d0 [ 162.374155][ T118] nf_unregister_net_hooks+0x88/0xac [ 162.375061][ T118] arpt_unregister_table_pre_exit+0x40/0x50 [ 162.375991][ T118] arptable_filter_net_pre_exit+0x20/0x2c [ 162.376893][ T118] cleanup_net+0x200/0x410 [ 162.377709][ T118] process_one_work+0x1d8/0x364 [ 162.378406][ T118] worker_thread+0x70/0x434 [ 162.379057][ T118] kthread+0x174/0x180 [ 162.379682][ T118] ret_from_fork+0x10/0x34 [ 162.380559][ T118] ---[ end trace 093053272213063c ]--- [ 162.534040][ T118] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 162.716499][ T118] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 162.907868][ T118] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 163.093938][ T118] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 166.219758][ T118] device hsr_slave_0 left promiscuous mode [ 166.285799][ T118] device hsr_slave_1 left promiscuous mode [ 166.412385][ T118] device veth1_macvtap left promiscuous mode [ 166.413797][ T118] device veth0_macvtap left promiscuous mode [ 166.415598][ T118] device veth1_vlan left promiscuous mode [ 166.416752][ T118] device veth0_vlan left promiscuous mode executing program [ 169.714762][ T118] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 169.909578][ T118] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 170.647128][ T118] bond0 (unregistering): Released all slaves executing program [ 171.975456][ T118] ================================================================== [ 171.979392][ T118] BUG: KASAN: invalid-access in hooks_validate+0x38/0x7c [ 171.983415][ T118] Read at addr fcff000005a2b048 by task kworker/u4:3/118 [ 171.984595][ T118] Pointer tag: [fc], memory tag: [fe] [ 171.985441][ T118] [ 171.986194][ T118] CPU: 1 PID: 118 Comm: kworker/u4:3 Tainted: G W 5.12.0-syzkaller-13661-gd835ff6c96ae #0 [ 171.987549][ T118] Hardware name: linux,dummy-virt (DT) [ 171.988312][ T118] Workqueue: netns cleanup_net [ 171.989297][ T118] Call trace: [ 171.989831][ T118] dump_backtrace+0x0/0x1b0 [ 171.990648][ T118] show_stack+0x18/0x24 [ 171.991591][ T118] dump_stack+0xd0/0x12c [ 171.992421][ T118] print_address_description+0x70/0x2ac [ 171.993245][ T118] kasan_report+0x134/0x380 [ 171.993927][ T118] __do_kernel_fault+0x1a8/0x1dc [ 171.994748][ T118] do_tag_check_fault+0x74/0x90 [ 171.995456][ T118] do_mem_abort+0x44/0xbc [ 171.996128][ T118] el1_abort+0x40/0x60 [ 171.996777][ T118] el1_sync_handler+0xac/0xd0 [ 171.998703][ T118] el1_sync+0x70/0x100 [ 172.000493][ T118] hooks_validate+0x38/0x7c [ 172.002525][ T118] __nf_unregister_net_hook+0x114/0x1d0 [ 172.004131][ T118] nf_unregister_net_hook+0x64/0x74 [ 172.004838][ T118] clusterip_net_exit+0x60/0x7c [ 172.005487][ T118] ops_exit_list+0x44/0x80 [ 172.006073][ T118] cleanup_net+0x23c/0x410 [ 172.006708][ T118] process_one_work+0x1d8/0x364 [ 172.007400][ T118] worker_thread+0x70/0x434 [ 172.008038][ T118] kthread+0x174/0x180 [ 172.008647][ T118] ret_from_fork+0x10/0x34 [ 172.009457][ T118] [ 172.010031][ T118] Allocated by task 3436: [ 172.010798][ T118] kasan_save_stack+0x28/0x5c [ 172.012592][ T118] __kasan_kmalloc+0xc8/0x100 [ 172.013331][ T118] dst_cow_metrics_generic+0x4c/0x160 [ 172.014026][ T118] icmp6_dst_alloc+0x134/0x200 [ 172.014705][ T118] mld_sendpack+0x204/0x404 [ 172.015438][ T118] mld_send_initial_cr.part.0.isra.0+0x5c/0x70 [ 172.016396][ T118] ipv6_mc_dad_complete+0x78/0x190 [ 172.017248][ T118] addrconf_dad_completed+0x2ac/0x2e4 [ 172.018053][ T118] addrconf_dad_work+0x254/0x4ec [ 172.018927][ T118] process_one_work+0x1d8/0x364 [ 172.019808][ T118] worker_thread+0x70/0x434 [ 172.020715][ T118] kthread+0x174/0x180 [ 172.021675][ T118] ret_from_fork+0x10/0x34 [ 172.022606][ T118] [ 172.023095][ T118] Freed by task 118: [ 172.025065][ T118] kasan_save_stack+0x28/0x5c [ 172.026278][ T118] kasan_set_track+0x28/0x40 [ 172.028226][ T118] kasan_set_free_info+0x20/0x30 [ 172.030336][ T118] ____kasan_slab_free.constprop.0+0x1dc/0x254 [ 172.033456][ T118] __kasan_slab_free+0x10/0x1c [ 172.034233][ T118] slab_free_freelist_hook+0xc0/0x220 [ 172.035042][ T118] kfree+0x350/0x4c4 [ 172.035699][ T118] xt_unregister_table+0x8c/0xcc [ 172.036534][ T118] __arpt_unregister_table+0x2c/0xcc [ 172.038595][ T118] arpt_unregister_table+0x30/0x40 [ 172.040663][ T118] arptable_filter_net_exit+0x18/0x24 [ 172.043181][ T118] ops_exit_list+0x44/0x80 [ 172.045276][ T118] cleanup_net+0x23c/0x410 [ 172.047420][ T118] process_one_work+0x1d8/0x364 [ 172.049660][ T118] worker_thread+0x70/0x434 [ 172.052270][ T118] kthread+0x174/0x180 [ 172.055071][ T118] ret_from_fork+0x10/0x34 [ 172.057631][ T118] [ 172.058295][ T118] The buggy address belongs to the object at ffff000005a2b000 [ 172.058295][ T118] which belongs to the cache kmalloc-128 of size 128 [ 172.060071][ T118] The buggy address is located 72 bytes inside of [ 172.060071][ T118] 128-byte region [ffff000005a2b000, ffff000005a2b080) [ 172.061988][ T118] The buggy address belongs to the page: [ 172.062938][ T118] page:00000000fad7cdc1 refcount:1 mapcount:0 mapping:0000000000000000 index:0xfcff000005a2b000 pfn:0x45a2b [ 172.064645][ T118] flags: 0x1ffc00000000200(slab|node=0|zone=0|lastcpupid=0x7ff|kasantag=0x0) [ 172.067714][ T118] raw: 01ffc00000000200 fffffc00002630c8 fffffc0000179c88 fdff000003001200 [ 172.069160][ T118] raw: fcff000005a2b000 000000000010000d 00000001ffffffff 0000000000000000 [ 172.070397][ T118] page dumped because: kasan: bad access detected [ 172.071722][ T118] [ 172.072299][ T118] Memory state around the buggy address: [ 172.073363][ T118] ffff000005a2ae00: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 fe f0 f0 [ 172.074357][ T118] ffff000005a2af00: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 fe fe fe fe fe [ 172.075308][ T118] >ffff000005a2b000: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 172.076341][ T118] ^ [ 172.077137][ T118] ffff000005a2b100: f2 f2 f2 f2 f2 f2 f2 f2 fe fe fe fe fe fe fe fe [ 172.078139][ T118] ffff000005a2b200: f0 f0 f0 f0 fe fe fe fe fe fe fe fe fe fe fe fe [ 172.079223][ T118] ================================================================== [ 172.080159][ T118] Disabling lock debugging due to kernel taint executing program executing program executing program executing program executing program executing program [ 189.137702][ T3303] can: request_module (can-proto-0) failed. [ 189.344852][ T3303] can: request_module (can-proto-0) failed. [ 189.549089][ T3303] can: request_module (can-proto-0) failed. executing program VM DIAGNOSIS: 20:35:51 Registers: info registers vcpu 0 PC=ffff8000113bdbd4 X00=ffff00007b604100 X01=0000000000000000 X02=0000000000000000 X03=000000008010000e X04=fffffc00002610a0 X05=ffff80001020a06c X06=0000000000000000 X07=0000000000000003 X08=ffff800010003ad4 X09=0000000000000000 X10=ffff80006d4d3000 X11=0000000000000002 X12=0000000000000001 X13=0000000000000001 X14=0000000000000372 X15=00007a04ffb040ba X16=0000000000000000 X17=0000000000000000 X18=0000000000000000 X19=0000000000000007 X20=ffff00007fbc4180 X21=ffff00007b604100 X22=ffff00007fbc41f0 X23=ffff80001281cfc0 X24=ffff800010003e80 X25=000000000000000a X26=0000000000000006 X27=0000000000000000 X28=ffff80001011d0b0 X29=ffff800010003e20 X30=73cd80001011cffc SP=ffff800010003e20 PSTATE=60400009 -ZC- EL2h BTYPE=0 FPCR=00000000 FPSR=00000010 P00=0000 P01=0000 P02=0000 P03=0000 P04=0000 P05=0000 P06=0000 P07=0000 P08=0000 P09=0000 P10=0000 P11=0000 P12=0000 P13=0000 P14=0000 P15=0000 FFR=0000 Z00=0000000000000000:0000000000000004 Z01=0000000000000000:c1162e42fefa39ef Z02=6f7bf98e16c06dd3:8f045aeb960d3ab5 Z03=0000000040000000:0000000000000000 Z04=4010040140100401:4000000000000000 Z05=4010040140100401:4010040140100401 Z06=5555400000400000:5555400000400000 Z07=0000000000000000:0000000000000000 Z08=0000000000000000:0000000000000000 Z09=0000000000000000:0000000000000000 Z10=0000000000000000:0000000000000000 Z11=0000000000000000:0000000000000000 Z12=0000000000000000:0000000000000000 Z13=0000000000000000:0000000000000000 Z14=0000000000000000:0000000000000000 Z15=0000000000000000:0000000000000000 Z16=0000000000000000:0000000000000000 Z17=0000000000000000:0000000000000000 Z18=0000000000000000:0000000000000000 Z19=0000000000000000:0000000000000000 Z20=0000000000000000:0000000000000000 Z21=0000000000000000:0000000000000000 Z22=0000000000000000:0000000000000000 Z23=0000000000000000:0000000000000000 Z24=0000000000000000:0000000000000000 Z25=0000000000000000:0000000000000000 Z26=0000000000000000:0000000000000000 Z27=0000000000000000:0000000000000000 Z28=0000000000000000:0000000000000000 Z29=0000000000000000:0000000000000000 Z30=0000000000000010:0000001ecc115340 Z31=0000000000000000:0000000000000000 info registers vcpu 1 PC=ffff800010768bb4 X00=f9ff000003379080 X01=0000000000000002 X02=ffff800012ac5018 X03=0000000000000018 X04=f9ff000003379080 X05=000000000000006d X06=ffff80001293f98f X07=6c203a656d616e20 X08=6d75642c78756e69 X09=ffff800012d8b4b0 X10=ffff80001274cd70 X11=ffff8000127f0df0 X12=ffff800012d8b52d X13=ffff800012d8b538 X14=ffffffffffffffff X15=0000000000000020 X16=0000000000000001 X17=0000000000000000 X18=00000000fffffffc X19=ffff80001293f9a7 X20=ffff800010768bb4 X21=f9ff000003379080 X22=ffff80001293f9b4 X23=0000000000000f01 X24=000000000000003c X25=ffff80001270fe08 X26=ffff80001285c728 X27=ffff80001293f978 X28=ffff80001293f7d0 X29=ffff800012d8b560 X30=9587800010768bdc SP=ffff800012d8b560 PSTATE=804003c9 N--- EL2h BTYPE=0 FPCR=00000000 FPSR=00000010 P00=0000 P01=0000 P02=0000 P03=0000 P04=0000 P05=0000 P06=0000 P07=0000 P08=0000 P09=0000 P10=0000 P11=0000 P12=0000 P13=0000 P14=0000 P15=0000 FFR=0000 Z00=8763f8f2cf8c354c:1326b84a03a5a98b Z01=000000006e72384d:514a2e72656c6c61 Z02=6f7bf98e16c06dd3:8f045aeb960d3ab5 Z03=4010040100000000:0000000000000000 Z04=0000000000000000:0000000000000000 Z05=4010040140100401:4010040140100401 Z06=0000000055000000:0000000055000000 Z07=0000000000000000:0000000000000002 Z08=0000000000000000:0000000000000002 Z09=0000000000000000:0000000000000000 Z10=0000000000000000:0000000000000000 Z11=0000000000000000:0000000000000000 Z12=0000000000000000:0000000000000000 Z13=0000000000000000:0000000000000000 Z14=0000000000000000:0000000000000000 Z15=0000000000000000:0000000000000000 Z16=0000000000000000:0000000000000000 Z17=0000000000000000:0000000000000000 Z18=0000000000000000:0000000000000000 Z19=0000000000000000:0000000000000000 Z20=0000000000000000:0000000000000000 Z21=0000000000000000:0000000000000000 Z22=0000000000000000:0000000000000000 Z23=0000000000000000:0000000000000000 Z24=0000000000000000:0000000000000000 Z25=0000000000000000:0000000000000000 Z26=0000000000000000:0000000000000000 Z27=0000000000000000:0000000000000000 Z28=0000000000000000:0000000000000000 Z29=0000000000000000:0000000000000000 Z30=000000000000000e:00000000350f93e7 Z31=0000000000000000:0000000000000000