33][T24752] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2179.658951][T24752] ? validate_linkmsg+0x6fc/0x9c0 [ 2179.664008][T24752] br_dev_newlink+0x27/0x110 [ 2179.668634][T24752] ? br_changelink+0x1760/0x1760 [ 2179.673598][T24752] __rtnl_newlink+0x1173/0x1930 [ 2179.678478][T24752] ? rtnl_link_unregister+0x260/0x260 [ 2179.683901][T24752] rtnl_newlink+0x67/0xa0 [ 2179.688244][T24752] ? __rtnl_newlink+0x1930/0x1930 [ 2179.693284][T24752] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2179.698244][T24752] ? rtnl_getlink+0xb40/0xb40 [ 2179.702959][T24752] netlink_rcv_skb+0x16b/0x440 [ 2179.707742][T24752] ? rtnl_getlink+0xb40/0xb40 [ 2179.712489][T24752] ? netlink_ack+0x1370/0x1370 [ 2179.717310][T24752] ? netlink_deliver_tap+0x1a0/0xd00 [ 2179.722636][T24752] netlink_unicast+0x53b/0x810 [ 2179.727433][T24752] ? netlink_attachskb+0x880/0x880 [ 2179.732565][T24752] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2179.738504][T24752] ? __phys_addr_symbol+0x30/0x70 [ 2179.743547][T24752] ? __check_object_size+0x323/0x730 [ 2179.748864][T24752] netlink_sendmsg+0x93c/0xe40 [ 2179.753652][T24752] ? netlink_unicast+0x810/0x810 [ 2179.758617][T24752] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2179.763915][T24752] ? netlink_unicast+0x810/0x810 [ 2179.768868][T24752] __sock_sendmsg+0xd5/0x180 [ 2179.773468][T24752] ____sys_sendmsg+0x6ac/0x940 [ 2179.778265][T24752] ? copy_msghdr_from_user+0x10b/0x160 [ 2179.783843][T24752] ? kernel_sendmsg+0x50/0x50 [ 2179.788550][T24752] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2179.794662][T24752] ___sys_sendmsg+0x135/0x1d0 [ 2179.799366][T24752] ? do_recvmmsg+0x740/0x740 [ 2179.803986][T24752] ? find_held_lock+0x2d/0x110 [ 2179.808800][T24752] ? __fget_light+0xe6/0x260 [ 2179.813432][T24752] __sys_sendmsg+0x117/0x1e0 [ 2179.818057][T24752] ? __sys_sendmsg_sock+0x30/0x30 [ 2179.823101][T24752] ? xfd_validate_state+0x5d/0x180 [ 2179.828277][T24752] ? syscall_enter_from_user_mode+0x26/0x80 [ 2179.834207][T24752] do_syscall_64+0x3f/0x110 [ 2179.838750][T24752] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2179.844669][T24752] RIP: 0033:0x7f874a47cae9 [ 2179.849094][T24752] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2179.868711][T24752] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2179.877154][T24752] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2179.885233][T24752] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2179.893312][T24752] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2179.901318][T24752] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2179.909304][T24752] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2179.917331][T24752] 22:27:10 executing program 0: r0 = socket$inet6_sctp(0xa, 0x1, 0x84) getsockopt$inet_sctp6_SCTP_PEER_ADDR_THLDS(r0, 0x84, 0x2, &(0x7f0000000080)={0x0, @in={{0x2, 0x0, @dev}}}, &(0x7f0000000000)=0x90) getsockopt$inet_sctp6_SCTP_AUTH_ACTIVE_KEY(r0, 0x84, 0x18, &(0x7f0000000040)={r1}, &(0x7f0000000140)=0x8) 22:27:10 executing program 5: setsockopt$sock_attach_bpf(0xffffffffffffffff, 0x1, 0x32, 0x0, 0x0) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000001240)={0x18, 0x2, &(0x7f0000000f00)=@raw=[@cb_func={0x18, 0x8, 0x4, 0x0, 0x3}], &(0x7f0000000fc0)='GPL\x00', 0x1c0, 0xe1, &(0x7f0000001000)=""/225}, 0x90) 22:27:10 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xa000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2179.969116][T24752] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2180.081331][T24764] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2180.140900][T24764] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2180.160421][T24764] CPU: 0 PID: 24764 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2180.170559][T24764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2180.180652][T24764] Call Trace: [ 2180.183959][T24764] [ 2180.186916][T24764] dump_stack_lvl+0x125/0x1b0 [ 2180.191991][T24764] sysfs_warn_dup+0x7f/0xa0 [ 2180.196640][T24764] sysfs_create_dir_ns+0x247/0x2a0 [ 2180.201906][T24764] ? sysfs_create_mount_point+0xb0/0xb0 [ 2180.207591][T24764] ? spin_bug+0x1d0/0x1d0 [ 2180.211972][T24764] ? net_namespace+0x12/0x40 [ 2180.216598][T24764] ? device_namespace+0x8d/0xc0 [ 2180.221502][T24764] kobject_add_internal+0x2c8/0x960 [ 2180.226763][T24764] kobject_add+0x16f/0x240 [ 2180.231244][T24764] ? kset_create_and_add+0x190/0x190 [ 2180.236590][T24764] ? do_raw_spin_unlock+0x173/0x230 [ 2180.241864][T24764] ? kobject_put+0xbe/0x440 [ 2180.246429][T24764] device_add+0x289/0x1aa0 [ 2180.251222][T24764] ? device_initialize+0x510/0x510 [ 2180.256461][T24764] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2180.263342][T24764] ? __init_waitqueue_head+0xca/0x150 [ 2180.268831][T24764] netdev_register_kobject+0x183/0x3f0 [ 2180.274318][T24764] register_netdevice+0xbdf/0x14a0 [ 2180.279459][T24764] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2180.285991][T24764] veth_newlink+0x4ef/0xa00 [ 2180.290531][T24764] ? veth_set_features+0x2d0/0x2d0 [ 2180.295659][T24764] ? rtnl_create_link+0xc9c/0xfd0 [ 2180.300709][T24764] ? __rtnl_newlink+0x108a/0x1930 [ 2180.305749][T24764] ? rtnl_newlink+0x67/0xa0 [ 2180.310322][T24764] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2180.315555][T24764] ? alloc_netdev_mqs+0xee6/0x1290 [ 2180.320708][T24764] ? rtnl_create_link+0xa6d/0xfd0 [ 2180.325957][T24764] ? veth_set_features+0x2d0/0x2d0 [ 2180.331101][T24764] __rtnl_newlink+0x1173/0x1930 [ 2180.335992][T24764] ? rtnl_link_unregister+0x260/0x260 [ 2180.341414][T24764] rtnl_newlink+0x67/0xa0 [ 2180.345771][T24764] ? __rtnl_newlink+0x1930/0x1930 [ 2180.350819][T24764] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2180.355776][T24764] ? rtnl_getlink+0xb40/0xb40 [ 2180.360484][T24764] netlink_rcv_skb+0x16b/0x440 [ 2180.365266][T24764] ? rtnl_getlink+0xb40/0xb40 [ 2180.369958][T24764] ? netlink_ack+0x1370/0x1370 [ 2180.374760][T24764] ? netlink_deliver_tap+0x1a0/0xd00 [ 2180.380159][T24764] netlink_unicast+0x53b/0x810 [ 2180.384949][T24764] ? netlink_attachskb+0x880/0x880 [ 2180.390089][T24764] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2180.396132][T24764] ? __phys_addr_symbol+0x30/0x70 [ 2180.401189][T24764] ? __check_object_size+0x323/0x730 [ 2180.406685][T24764] netlink_sendmsg+0x93c/0xe40 [ 2180.411479][T24764] ? netlink_unicast+0x810/0x810 [ 2180.416441][T24764] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2180.421743][T24764] ? netlink_unicast+0x810/0x810 [ 2180.426705][T24764] __sock_sendmsg+0xd5/0x180 [ 2180.431327][T24764] ____sys_sendmsg+0x6ac/0x940 [ 2180.436108][T24764] ? copy_msghdr_from_user+0x10b/0x160 [ 2180.441588][T24764] ? kernel_sendmsg+0x50/0x50 [ 2180.446286][T24764] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2180.452303][T24764] ___sys_sendmsg+0x135/0x1d0 [ 2180.457007][T24764] ? do_recvmmsg+0x740/0x740 [ 2180.461614][T24764] ? find_held_lock+0x2d/0x110 [ 2180.466775][T24764] ? __fget_light+0xe6/0x260 [ 2180.471410][T24764] __sys_sendmsg+0x117/0x1e0 [ 2180.476018][T24764] ? __sys_sendmsg_sock+0x30/0x30 [ 2180.481060][T24764] ? xfd_validate_state+0x5d/0x180 [ 2180.486226][T24764] ? syscall_enter_from_user_mode+0x26/0x80 [ 2180.492143][T24764] do_syscall_64+0x3f/0x110 [ 2180.496672][T24764] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2180.502596][T24764] RIP: 0033:0x7f70d3c7cae9 [ 2180.507021][T24764] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2180.526729][T24764] RSP: 002b:00007f70d48ed0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2180.535161][T24764] RAX: ffffffffffffffda RBX: 00007f70d3d9c050 RCX: 00007f70d3c7cae9 [ 2180.543164][T24764] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004 [ 2180.551154][T24764] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2180.559138][T24764] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2180.567121][T24764] R13: 000000000000006e R14: 00007f70d3d9c050 R15: 00007ffd93047b68 [ 2180.575127][T24764] 22:27:10 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000103a000"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:10 executing program 2: bpf$BPF_BTF_LOAD(0x12, &(0x7f0000000500)={&(0x7f00000002c0)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0xc, 0xc, 0x2, [@const={0x0, 0x0, 0x0, 0xa, 0x3}]}}, 0x0, 0x26, 0x0, 0x1}, 0x20) 22:27:10 executing program 5: bpf$BPF_BTF_LOAD(0x12, &(0x7f0000000280)={&(0x7f0000000140)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0x14, 0x14, 0x4, [@func_proto={0x0, 0x1, 0x0, 0xd, 0x0, [{0x3, 0x1}]}]}, {0x0, [0x0, 0x0]}}, 0x0, 0x30, 0x0, 0x1}, 0x20) 22:27:10 executing program 0: bpf$BPF_BTF_LOAD(0x12, &(0x7f0000000500)={&(0x7f00000002c0)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0xc, 0xc, 0x2, [@const]}}, 0x0, 0x26, 0x0, 0x1}, 0x20) 22:27:10 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xcf71900}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2180.593012][T24764] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2180.623662][T24762] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:27:10 executing program 2: bpf$BPF_PROG_TEST_RUN_LIVE(0xa, &(0x7f0000000c80)={0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, &(0x7f0000000d40)="bb"}, 0x50) 22:27:10 executing program 0: socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000540)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$unix(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000100)=[{0xfffffffffffffffc}, {0x0}], 0x2}, 0x0) 22:27:10 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x14, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:10 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xe000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:10 executing program 5: r0 = socket$inet_sctp(0x2, 0x1, 0x84) bind$inet(r0, &(0x7f0000000200)={0x10, 0x2}, 0x10) connect$inet(r0, &(0x7f0000000040)={0x10, 0x2}, 0x10) sendmsg$inet_sctp(r0, &(0x7f00000014c0)={0x0, 0x0, &(0x7f0000001400)=[{&(0x7f00000011c0)='\a', 0x1}], 0x1}, 0x0) sendmsg$inet_sctp(r0, &(0x7f0000001300)={0x0, 0x0, &(0x7f0000000680)=[{&(0x7f00000000c0)='i', 0x1}], 0x1}, 0x0) [ 2180.806558][T24785] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2180.851581][T24785] CPU: 1 PID: 24785 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2180.861765][T24785] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2180.871920][T24785] Call Trace: [ 2180.875207][T24785] [ 2180.878145][T24785] dump_stack_lvl+0x125/0x1b0 [ 2180.882850][T24785] sysfs_warn_dup+0x7f/0xa0 [ 2180.887398][T24785] sysfs_create_dir_ns+0x247/0x2a0 [ 2180.892555][T24785] ? sysfs_create_mount_point+0xb0/0xb0 [ 2180.898150][T24785] ? spin_bug+0x1d0/0x1d0 [ 2180.902512][T24785] ? net_namespace+0x12/0x40 [ 2180.907113][T24785] ? device_namespace+0x8d/0xc0 [ 2180.911993][T24785] kobject_add_internal+0x2c8/0x960 [ 2180.917248][T24785] kobject_add+0x16f/0x240 [ 2180.921700][T24785] ? kset_create_and_add+0x190/0x190 [ 2180.927013][T24785] ? do_raw_spin_unlock+0x173/0x230 [ 2180.932259][T24785] ? kobject_put+0xbe/0x440 [ 2180.936808][T24785] device_add+0x289/0x1aa0 [ 2180.941258][T24785] ? device_initialize+0x510/0x510 [ 2180.946583][T24785] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2180.953466][T24785] ? __init_waitqueue_head+0xca/0x150 [ 2180.958866][T24785] netdev_register_kobject+0x183/0x3f0 [ 2180.964445][T24785] register_netdevice+0xbdf/0x14a0 [ 2180.969577][T24785] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2180.975494][T24785] ? validate_linkmsg+0x6fc/0x9c0 [ 2180.980699][T24785] br_dev_newlink+0x27/0x110 [ 2180.985515][T24785] ? br_changelink+0x1760/0x1760 [ 2180.990500][T24785] __rtnl_newlink+0x1173/0x1930 [ 2180.995403][T24785] ? rtnl_link_unregister+0x260/0x260 [ 2181.000947][T24785] rtnl_newlink+0x67/0xa0 [ 2181.005408][T24785] ? __rtnl_newlink+0x1930/0x1930 [ 2181.010650][T24785] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2181.015618][T24785] ? rtnl_getlink+0xb40/0xb40 [ 2181.020334][T24785] netlink_rcv_skb+0x16b/0x440 [ 2181.025207][T24785] ? rtnl_getlink+0xb40/0xb40 [ 2181.029918][T24785] ? netlink_ack+0x1370/0x1370 [ 2181.034746][T24785] ? netlink_deliver_tap+0x1a0/0xd00 [ 2181.040259][T24785] netlink_unicast+0x53b/0x810 [ 2181.045078][T24785] ? netlink_attachskb+0x880/0x880 [ 2181.050214][T24785] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2181.056147][T24785] ? __phys_addr_symbol+0x30/0x70 [ 2181.061310][T24785] ? __check_object_size+0x323/0x730 [ 2181.066817][T24785] netlink_sendmsg+0x93c/0xe40 [ 2181.071729][T24785] ? netlink_unicast+0x810/0x810 [ 2181.076726][T24785] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2181.082038][T24785] ? netlink_unicast+0x810/0x810 [ 2181.087169][T24785] __sock_sendmsg+0xd5/0x180 [ 2181.091903][T24785] ____sys_sendmsg+0x6ac/0x940 [ 2181.096972][T24785] ? copy_msghdr_from_user+0x10b/0x160 [ 2181.102505][T24785] ? kernel_sendmsg+0x50/0x50 [ 2181.107240][T24785] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2181.113274][T24785] ___sys_sendmsg+0x135/0x1d0 [ 2181.118014][T24785] ? do_recvmmsg+0x740/0x740 [ 2181.122636][T24785] ? find_held_lock+0x2d/0x110 [ 2181.127459][T24785] ? __fget_light+0xe6/0x260 [ 2181.132211][T24785] __sys_sendmsg+0x117/0x1e0 [ 2181.136844][T24785] ? __sys_sendmsg_sock+0x30/0x30 [ 2181.142177][T24785] ? xfd_validate_state+0x5d/0x180 [ 2181.147362][T24785] ? syscall_enter_from_user_mode+0x26/0x80 [ 2181.153308][T24785] do_syscall_64+0x3f/0x110 [ 2181.158373][T24785] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2181.164341][T24785] RIP: 0033:0x7f874a47cae9 [ 2181.168775][T24785] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2181.188495][T24785] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2181.197008][T24785] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2181.205083][T24785] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2181.213381][T24785] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2181.221480][T24785] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2181.229474][T24785] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2181.237483][T24785] [ 2181.274027][T24785] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:11 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xf000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:11 executing program 0: bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000001c0)={&(0x7f0000000180)='sched_kthread_stop\x00'}, 0x10) bpf$BPF_PROG_TEST_RUN_LIVE(0xa, &(0x7f0000000140)={0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x50) [ 2181.421591][T24796] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2181.475626][T24796] CPU: 1 PID: 24796 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2181.485858][T24796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2181.495952][T24796] Call Trace: [ 2181.499268][T24796] [ 2181.502232][T24796] dump_stack_lvl+0x125/0x1b0 [ 2181.506965][T24796] sysfs_warn_dup+0x7f/0xa0 [ 2181.511539][T24796] sysfs_create_dir_ns+0x247/0x2a0 [ 2181.516711][T24796] ? sysfs_create_mount_point+0xb0/0xb0 [ 2181.522319][T24796] ? spin_bug+0x1d0/0x1d0 [ 2181.526708][T24796] ? net_namespace+0x12/0x40 [ 2181.531339][T24796] ? device_namespace+0x8d/0xc0 [ 2181.536259][T24796] kobject_add_internal+0x2c8/0x960 [ 2181.541594][T24796] kobject_add+0x16f/0x240 [ 2181.546059][T24796] ? kset_create_and_add+0x190/0x190 [ 2181.551474][T24796] ? do_raw_spin_unlock+0x173/0x230 [ 2181.556709][T24796] ? kobject_put+0xbe/0x440 [ 2181.561260][T24796] device_add+0x289/0x1aa0 [ 2181.565707][T24796] ? device_initialize+0x510/0x510 [ 2181.570849][T24796] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2181.577723][T24796] ? __init_waitqueue_head+0xca/0x150 [ 2181.583386][T24796] netdev_register_kobject+0x183/0x3f0 [ 2181.588872][T24796] register_netdevice+0xbdf/0x14a0 [ 2181.594027][T24796] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2181.600036][T24796] veth_newlink+0x4ef/0xa00 [ 2181.604652][T24796] ? veth_set_features+0x2d0/0x2d0 [ 2181.609965][T24796] ? rtnl_create_link+0xc9c/0xfd0 [ 2181.615025][T24796] ? __rtnl_newlink+0x108a/0x1930 [ 2181.621970][T24796] ? rtnl_newlink+0x67/0xa0 [ 2181.626561][T24796] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2181.631802][T24796] ? alloc_netdev_mqs+0xee6/0x1290 [ 2181.636960][T24796] ? rtnl_create_link+0xa6d/0xfd0 [ 2181.642033][T24796] ? veth_set_features+0x2d0/0x2d0 [ 2181.647175][T24796] __rtnl_newlink+0x1173/0x1930 [ 2181.652074][T24796] ? rtnl_link_unregister+0x260/0x260 [ 2181.657500][T24796] rtnl_newlink+0x67/0xa0 [ 2181.662023][T24796] ? __rtnl_newlink+0x1930/0x1930 [ 2181.667067][T24796] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2181.672119][T24796] ? rtnl_getlink+0xb40/0xb40 [ 2181.676812][T24796] ? find_held_lock+0x2d/0x110 [ 2181.681690][T24796] ? rcu_preempt_deferred_qs_irqrestore+0x684/0xdb0 [ 2181.688305][T24796] ? reacquire_held_locks+0x4b0/0x4b0 [ 2181.693717][T24796] netlink_rcv_skb+0x16b/0x440 [ 2181.698798][T24796] ? rtnl_getlink+0xb40/0xb40 [ 2181.703503][T24796] ? netlink_ack+0x1370/0x1370 [ 2181.708300][T24796] ? _raw_spin_unlock_irqrestore+0x3b/0x70 [ 2181.714152][T24796] ? __rcu_read_unlock+0x2ad/0x570 [ 2181.719297][T24796] ? netlink_deliver_tap+0x1a0/0xd00 [ 2181.724611][T24796] netlink_unicast+0x53b/0x810 [ 2181.729496][T24796] ? netlink_attachskb+0x880/0x880 [ 2181.734630][T24796] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2181.740544][T24796] ? __phys_addr_symbol+0x30/0x70 [ 2181.745585][T24796] ? __check_object_size+0x323/0x730 [ 2181.750989][T24796] netlink_sendmsg+0x93c/0xe40 [ 2181.755808][T24796] ? netlink_unicast+0x810/0x810 [ 2181.760790][T24796] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2181.766118][T24796] ? netlink_unicast+0x810/0x810 [ 2181.771098][T24796] __sock_sendmsg+0xd5/0x180 [ 2181.775711][T24796] ____sys_sendmsg+0x6ac/0x940 [ 2181.780494][T24796] ? copy_msghdr_from_user+0x10b/0x160 [ 2181.786147][T24796] ? kernel_sendmsg+0x50/0x50 [ 2181.790843][T24796] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2181.796872][T24796] ___sys_sendmsg+0x135/0x1d0 [ 2181.801588][T24796] ? do_recvmmsg+0x740/0x740 [ 2181.806309][T24796] ? find_held_lock+0x2d/0x110 [ 2181.811139][T24796] ? __fget_light+0xe6/0x260 [ 2181.815767][T24796] __sys_sendmsg+0x117/0x1e0 [ 2181.820388][T24796] ? __sys_sendmsg_sock+0x30/0x30 [ 2181.825443][T24796] ? xfd_validate_state+0x5d/0x180 [ 2181.830616][T24796] ? syscall_enter_from_user_mode+0x26/0x80 [ 2181.836545][T24796] do_syscall_64+0x3f/0x110 [ 2181.841174][T24796] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2181.847088][T24796] RIP: 0033:0x7f70d3c7cae9 [ 2181.851514][T24796] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2181.871147][T24796] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2181.879577][T24796] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2181.887563][T24796] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2181.895735][T24796] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2181.903813][T24796] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2181.911806][T24796] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2181.919810][T24796] [ 2181.928232][T24796] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:12 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000100a100"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:12 executing program 5: bpf$BPF_BTF_LOAD(0x12, &(0x7f00000001c0)={&(0x7f00000000c0)=ANY=[], 0x0, 0x3f}, 0x20) 22:27:12 executing program 2: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000001240)={0x18, 0x2, &(0x7f0000000f00)=@raw=[@cb_func], &(0x7f0000000fc0)='GPL\x00', 0x1c0, 0xe1, &(0x7f0000001000)=""/225}, 0x90) 22:27:12 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x10000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:12 executing program 0: openat$tun(0xffffffffffffff9c, 0x0, 0x50341, 0x0) 22:27:12 executing program 5: bpf$MAP_CREATE(0x0, &(0x7f0000000380)=@base={0x5}, 0x2) 22:27:12 executing program 0: bpf$BPF_BTF_LOAD(0x12, &(0x7f00000001c0)={0x0, 0x0, 0x3f}, 0x20) 22:27:12 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x15, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:12 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x13000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:12 executing program 2: socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000540)={0xffffffffffffffff}) sendmsg(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000580)=[{&(0x7f0000000dc0)="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0x1000}, {&(0x7f00000000c0)="1aad5cf2b6cd3fabfadbdd8db10dc0b607ffffd18ee9960865402ce6c73a5ae31f816e889472f5056b3cd00353e9690d67922f4f1118fae9883ddfd0349f3c7eb5bb3daf7489e411daa728f402ad87694d78486f803fc01908d7d599c43113f3000c349fa5eff3a4d5f9339ece980bcbc002fc6263ce811e1c59862ade53828da37bdae0c97aba058bca28e5b7bb5ae229f2bb157572a10be785cd132985d3b0e82f7758aaa8479183d3f24db953eafb201c818ca33fdc9bfe5b4214c69c5ae9", 0xc0}, {&(0x7f0000000180)="93bd8a356335d8c0e8723b711eb3863fdebda9defce0ed4b81a279d96124ed537af1ca1f1d02beaf39f5d3d7f2a4c9e8488de7ddaf76b8784eb003e52726ceb646a4148fbeb4d50fafe98aae4dcf63277a8c39d3f5e304ff838222b508e0e6ec5349ef1d2c4bc61ff4a1ad69301ffe55015adbe0f0bc5a6930babc869703b2c1", 0x80}, {&(0x7f0000000200)="e3e46275ef9176e22fd29b1ad9ebd989362190c3d0ff7f78b345956327b381750aaa229c2fcdea7c5c174e9bc971efcbeb667b30bb359c73faf46993d999d938c1222e5a932f3263d4f78b386885c9e4eb5fe4d4d21edde64b38af01435841b13b56d7af413fc72d23b21821525951b953b3f79c983863656b09ce62e24e33d1937ba00eb92ed38268668cea1b385aa81b7d4dc23fe29c1cffe895fac1e33379c4543530949cca5ea61b5c3ea18e7584ab11e67e9d688b", 0xb7}, {&(0x7f0000001dc0)="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", 0xcca}], 0x5}, 0x0) 22:27:12 executing program 5: bpf$BPF_PROG_WITH_BTFID_LOAD(0x5, &(0x7f0000000d80)=@bpf_lsm={0x1d, 0x3, &(0x7f0000000740)=@framed, &(0x7f0000000840)='syzkaller\x00', 0x2, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x1b, 0xffffffffffffffff, 0x8, &(0x7f0000000c40), 0x8}, 0x90) 22:27:12 executing program 0: socketpair(0x3, 0x0, 0x0, &(0x7f0000001500)) [ 2182.194770][T24820] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2182.220282][T24820] CPU: 0 PID: 24820 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2182.230440][T24820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2182.240540][T24820] Call Trace: [ 2182.243849][T24820] [ 2182.246897][T24820] dump_stack_lvl+0x125/0x1b0 [ 2182.251628][T24820] sysfs_warn_dup+0x7f/0xa0 [ 2182.256212][T24820] sysfs_create_dir_ns+0x247/0x2a0 [ 2182.261389][T24820] ? sysfs_create_mount_point+0xb0/0xb0 [ 2182.266997][T24820] ? spin_bug+0x1d0/0x1d0 [ 2182.271398][T24820] ? net_namespace+0x12/0x40 [ 2182.276033][T24820] ? device_namespace+0x8d/0xc0 [ 2182.280948][T24820] kobject_add_internal+0x2c8/0x960 [ 2182.286483][T24820] kobject_add+0x16f/0x240 [ 2182.290993][T24820] ? kset_create_and_add+0x190/0x190 [ 2182.296353][T24820] ? do_raw_spin_unlock+0x173/0x230 [ 2182.301591][T24820] ? kobject_put+0xbe/0x440 [ 2182.306140][T24820] device_add+0x289/0x1aa0 [ 2182.310590][T24820] ? device_initialize+0x510/0x510 [ 2182.315738][T24820] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2182.322640][T24820] ? __init_waitqueue_head+0xca/0x150 [ 2182.328233][T24820] netdev_register_kobject+0x183/0x3f0 [ 2182.333750][T24820] register_netdevice+0xbdf/0x14a0 [ 2182.338904][T24820] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2182.344824][T24820] ? validate_linkmsg+0x6fc/0x9c0 [ 2182.350066][T24820] br_dev_newlink+0x27/0x110 [ 2182.354689][T24820] ? br_changelink+0x1760/0x1760 [ 2182.359693][T24820] __rtnl_newlink+0x1173/0x1930 [ 2182.364577][T24820] ? rtnl_link_unregister+0x260/0x260 [ 2182.370005][T24820] rtnl_newlink+0x67/0xa0 [ 2182.374350][T24820] ? __rtnl_newlink+0x1930/0x1930 [ 2182.379480][T24820] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2182.384461][T24820] ? rtnl_getlink+0xb40/0xb40 [ 2182.389196][T24820] netlink_rcv_skb+0x16b/0x440 [ 2182.394001][T24820] ? rtnl_getlink+0xb40/0xb40 [ 2182.398703][T24820] ? netlink_ack+0x1370/0x1370 [ 2182.403506][T24820] ? netlink_deliver_tap+0x1a0/0xd00 [ 2182.408821][T24820] netlink_unicast+0x53b/0x810 [ 2182.413794][T24820] ? netlink_attachskb+0x880/0x880 [ 2182.418920][T24820] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2182.424833][T24820] ? __phys_addr_symbol+0x30/0x70 [ 2182.429876][T24820] ? __check_object_size+0x323/0x730 [ 2182.435197][T24820] netlink_sendmsg+0x93c/0xe40 [ 2182.439992][T24820] ? netlink_unicast+0x810/0x810 [ 2182.444953][T24820] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2182.450256][T24820] ? netlink_unicast+0x810/0x810 [ 2182.455224][T24820] __sock_sendmsg+0xd5/0x180 [ 2182.459867][T24820] ____sys_sendmsg+0x6ac/0x940 [ 2182.464828][T24820] ? copy_msghdr_from_user+0x10b/0x160 [ 2182.470407][T24820] ? kernel_sendmsg+0x50/0x50 [ 2182.475152][T24820] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2182.481182][T24820] ___sys_sendmsg+0x135/0x1d0 [ 2182.485899][T24820] ? do_recvmmsg+0x740/0x740 [ 2182.490510][T24820] ? find_held_lock+0x2d/0x110 [ 2182.495334][T24820] ? __fget_light+0xe6/0x260 [ 2182.499952][T24820] __sys_sendmsg+0x117/0x1e0 [ 2182.504648][T24820] ? __sys_sendmsg_sock+0x30/0x30 [ 2182.509742][T24820] ? xfd_validate_state+0x5d/0x180 [ 2182.514898][T24820] ? syscall_enter_from_user_mode+0x26/0x80 [ 2182.520988][T24820] do_syscall_64+0x3f/0x110 [ 2182.525524][T24820] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2182.531436][T24820] RIP: 0033:0x7f874a47cae9 [ 2182.535962][T24820] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2182.555671][T24820] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2182.564208][T24820] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2182.572287][T24820] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2182.580362][T24820] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2182.588474][T24820] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2182.596463][T24820] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2182.606029][T24820] [ 2182.651136][T24820] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2182.724537][T24824] __nla_validate_parse: 6 callbacks suppressed [ 2182.724561][T24824] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2182.822356][T24824] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2182.832132][T24824] CPU: 1 PID: 24824 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2182.842257][T24824] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2182.852352][T24824] Call Trace: [ 2182.855668][T24824] [ 2182.858626][T24824] dump_stack_lvl+0x125/0x1b0 [ 2182.863356][T24824] sysfs_warn_dup+0x7f/0xa0 [ 2182.868009][T24824] sysfs_create_dir_ns+0x247/0x2a0 [ 2182.873215][T24824] ? sysfs_create_mount_point+0xb0/0xb0 [ 2182.878842][T24824] ? spin_bug+0x1d0/0x1d0 [ 2182.884011][T24824] ? net_namespace+0x12/0x40 [ 2182.888636][T24824] ? device_namespace+0x8d/0xc0 [ 2182.893539][T24824] kobject_add_internal+0x2c8/0x960 [ 2182.898855][T24824] kobject_add+0x16f/0x240 [ 2182.903313][T24824] ? kset_create_and_add+0x190/0x190 [ 2182.908648][T24824] ? do_raw_spin_unlock+0x173/0x230 [ 2182.913916][T24824] ? kobject_put+0xbe/0x440 [ 2182.918497][T24824] device_add+0x289/0x1aa0 [ 2182.923045][T24824] ? device_initialize+0x510/0x510 [ 2182.928221][T24824] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2182.935121][T24824] ? __init_waitqueue_head+0xca/0x150 [ 2182.940549][T24824] netdev_register_kobject+0x183/0x3f0 [ 2182.946170][T24824] register_netdevice+0xbdf/0x14a0 [ 2182.951322][T24824] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2182.957454][T24824] veth_newlink+0x4ef/0xa00 [ 2182.962005][T24824] ? veth_set_features+0x2d0/0x2d0 [ 2182.967163][T24824] ? rtnl_create_link+0xc9c/0xfd0 [ 2182.972328][T24824] ? __rtnl_newlink+0x108a/0x1930 [ 2182.977592][T24824] ? rtnl_newlink+0x67/0xa0 [ 2182.982308][T24824] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2182.987570][T24824] ? alloc_netdev_mqs+0xee6/0x1290 [ 2182.992754][T24824] ? rtnl_create_link+0xa6d/0xfd0 [ 2182.997841][T24824] ? veth_set_features+0x2d0/0x2d0 [ 2183.003006][T24824] __rtnl_newlink+0x1173/0x1930 [ 2183.007913][T24824] ? rtnl_link_unregister+0x260/0x260 [ 2183.013362][T24824] rtnl_newlink+0x67/0xa0 [ 2183.017726][T24824] ? __rtnl_newlink+0x1930/0x1930 [ 2183.022790][T24824] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2183.027770][T24824] ? rtnl_getlink+0xb40/0xb40 [ 2183.033026][T24824] netlink_rcv_skb+0x16b/0x440 [ 2183.037839][T24824] ? rtnl_getlink+0xb40/0xb40 [ 2183.042556][T24824] ? netlink_ack+0x1370/0x1370 [ 2183.047480][T24824] ? netlink_deliver_tap+0x1a0/0xd00 [ 2183.052907][T24824] netlink_unicast+0x53b/0x810 [ 2183.057727][T24824] ? netlink_attachskb+0x880/0x880 [ 2183.063051][T24824] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2183.069084][T24824] ? __phys_addr_symbol+0x30/0x70 [ 2183.074151][T24824] ? __check_object_size+0x323/0x730 [ 2183.079492][T24824] netlink_sendmsg+0x93c/0xe40 [ 2183.084312][T24824] ? netlink_unicast+0x810/0x810 [ 2183.089467][T24824] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2183.094806][T24824] ? netlink_unicast+0x810/0x810 [ 2183.099963][T24824] __sock_sendmsg+0xd5/0x180 [ 2183.104592][T24824] ____sys_sendmsg+0x6ac/0x940 [ 2183.109394][T24824] ? copy_msghdr_from_user+0x10b/0x160 [ 2183.114900][T24824] ? kernel_sendmsg+0x50/0x50 [ 2183.119623][T24824] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2183.125836][T24824] ___sys_sendmsg+0x135/0x1d0 [ 2183.130554][T24824] ? do_recvmmsg+0x740/0x740 [ 2183.135179][T24824] ? find_held_lock+0x2d/0x110 [ 2183.140025][T24824] ? __fget_light+0xe6/0x260 [ 2183.144666][T24824] __sys_sendmsg+0x117/0x1e0 [ 2183.149294][T24824] ? __sys_sendmsg_sock+0x30/0x30 [ 2183.154366][T24824] ? xfd_validate_state+0x5d/0x180 [ 2183.159552][T24824] ? syscall_enter_from_user_mode+0x26/0x80 [ 2183.165488][T24824] do_syscall_64+0x3f/0x110 [ 2183.170035][T24824] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2183.175971][T24824] RIP: 0033:0x7f70d3c7cae9 [ 2183.180418][T24824] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2183.201020][T24824] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2183.209911][T24824] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2183.217934][T24824] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2183.225956][T24824] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2183.234133][T24824] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2183.242134][T24824] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2183.250171][T24824] 22:27:13 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000101a100"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:13 executing program 0: bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000680)={0x6, 0x1, &(0x7f00000003c0)=@raw=[@alu], &(0x7f0000000480)='syzkaller\x00', 0x7}, 0x90) 22:27:13 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x16000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:13 executing program 2: bpf$BPF_PROG_DETACH(0x9, &(0x7f0000004e00)={@map, 0xffffffffffffffff, 0x0, 0x10, 0x0, @prog_id}, 0x20) 22:27:13 executing program 5: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000001240)={0x18, 0x2, &(0x7f0000000f00)=@raw=[@cb_func], 0x0}, 0x90) [ 2183.280203][T24824] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2183.311305][T24829] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2183.321026][T24832] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. 22:27:13 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x60, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:13 executing program 0: socketpair(0x0, 0x0, 0x0, &(0x7f0000001500)) 22:27:13 executing program 5: bpf$BPF_PROG_DETACH(0x9, &(0x7f0000000c00)={@cgroup, 0xffffffffffffffff, 0x0, 0x0, 0x0, @link_id}, 0x20) 22:27:13 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x17000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:13 executing program 2: bpf$BPF_BTF_LOAD(0x12, &(0x7f0000001640)={&(0x7f0000000540)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0x10, 0x10, 0x2, [@int={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x8, 0x7}]}}, 0x0, 0x2a, 0x0, 0x1}, 0x20) [ 2183.469830][T24847] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2183.531322][T24847] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2183.553238][T24847] CPU: 0 PID: 24847 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2183.563462][T24847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2183.573561][T24847] Call Trace: [ 2183.576879][T24847] [ 2183.579848][T24847] dump_stack_lvl+0x125/0x1b0 [ 2183.584585][T24847] sysfs_warn_dup+0x7f/0xa0 [ 2183.589196][T24847] sysfs_create_dir_ns+0x247/0x2a0 [ 2183.594371][T24847] ? sysfs_create_mount_point+0xb0/0xb0 [ 2183.600098][T24847] ? spin_bug+0x1d0/0x1d0 [ 2183.604488][T24847] ? net_namespace+0x12/0x40 [ 2183.609210][T24847] ? device_namespace+0x8d/0xc0 [ 2183.614120][T24847] kobject_add_internal+0x2c8/0x960 [ 2183.619397][T24847] kobject_add+0x16f/0x240 [ 2183.623890][T24847] ? kset_create_and_add+0x190/0x190 [ 2183.629234][T24847] ? do_raw_spin_unlock+0x173/0x230 [ 2183.634496][T24847] ? kobject_put+0xbe/0x440 [ 2183.639073][T24847] device_add+0x289/0x1aa0 [ 2183.643537][T24847] ? device_initialize+0x510/0x510 [ 2183.648715][T24847] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2183.655620][T24847] ? __init_waitqueue_head+0xca/0x150 [ 2183.661055][T24847] netdev_register_kobject+0x183/0x3f0 [ 2183.666567][T24847] register_netdevice+0xbdf/0x14a0 [ 2183.671736][T24847] ? unregister_netdevice_queue+0x3c0/0x3c0 22:27:13 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x17010000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:13 executing program 5: openat$tun(0xffffffffffffff9c, &(0x7f0000001700), 0x0, 0x0) [ 2183.677887][T24847] ? validate_linkmsg+0x6fc/0x9c0 [ 2183.683128][T24847] br_dev_newlink+0x27/0x110 [ 2183.687784][T24847] ? br_changelink+0x1760/0x1760 [ 2183.692784][T24847] __rtnl_newlink+0x1173/0x1930 [ 2183.697804][T24847] ? rtnl_link_unregister+0x260/0x260 [ 2183.703355][T24847] rtnl_newlink+0x67/0xa0 [ 2183.707733][T24847] ? __rtnl_newlink+0x1930/0x1930 [ 2183.712914][T24847] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2183.717920][T24847] ? rtnl_getlink+0xb40/0xb40 [ 2183.722661][T24847] netlink_rcv_skb+0x16b/0x440 [ 2183.727471][T24847] ? rtnl_getlink+0xb40/0xb40 [ 2183.732190][T24847] ? netlink_ack+0x1370/0x1370 [ 2183.737021][T24847] ? netlink_deliver_tap+0x1a0/0xd00 [ 2183.742360][T24847] netlink_unicast+0x53b/0x810 [ 2183.747175][T24847] ? netlink_attachskb+0x880/0x880 [ 2183.752330][T24847] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2183.758354][T24847] ? __phys_addr_symbol+0x30/0x70 [ 2183.763420][T24847] ? __check_object_size+0x323/0x730 [ 2183.768768][T24847] netlink_sendmsg+0x93c/0xe40 [ 2183.773601][T24847] ? netlink_unicast+0x810/0x810 [ 2183.778594][T24847] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2183.784012][T24847] ? netlink_unicast+0x810/0x810 [ 2183.789014][T24847] __sock_sendmsg+0xd5/0x180 [ 2183.793998][T24847] ____sys_sendmsg+0x6ac/0x940 [ 2183.798808][T24847] ? copy_msghdr_from_user+0x10b/0x160 [ 2183.804320][T24847] ? kernel_sendmsg+0x50/0x50 [ 2183.809062][T24847] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2183.815205][T24847] ___sys_sendmsg+0x135/0x1d0 [ 2183.819952][T24847] ? do_recvmmsg+0x740/0x740 [ 2183.824596][T24847] ? find_held_lock+0x2d/0x110 [ 2183.829458][T24847] ? __fget_light+0xe6/0x260 [ 2183.834108][T24847] __sys_sendmsg+0x117/0x1e0 [ 2183.838745][T24847] ? __sys_sendmsg_sock+0x30/0x30 [ 2183.843816][T24847] ? xfd_validate_state+0x5d/0x180 [ 2183.849008][T24847] ? syscall_enter_from_user_mode+0x26/0x80 [ 2183.855041][T24847] do_syscall_64+0x3f/0x110 [ 2183.859615][T24847] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2183.865564][T24847] RIP: 0033:0x7f874a47cae9 [ 2183.870022][T24847] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2183.889674][T24847] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2183.898134][T24847] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2183.906154][T24847] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2183.914158][T24847] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2183.922167][T24847] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2183.930170][T24847] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2183.938205][T24847] [ 2183.997939][T24847] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2184.074177][T24850] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2184.099577][T24850] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2184.117976][T24850] CPU: 0 PID: 24850 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2184.128102][T24850] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2184.138189][T24850] Call Trace: [ 2184.141490][T24850] [ 2184.144450][T24850] dump_stack_lvl+0x125/0x1b0 [ 2184.149182][T24850] sysfs_warn_dup+0x7f/0xa0 [ 2184.154450][T24850] sysfs_create_dir_ns+0x247/0x2a0 [ 2184.159601][T24850] ? sysfs_create_mount_point+0xb0/0xb0 [ 2184.165179][T24850] ? spin_bug+0x1d0/0x1d0 [ 2184.169542][T24850] ? net_namespace+0x12/0x40 [ 2184.174242][T24850] ? device_namespace+0x8d/0xc0 [ 2184.179213][T24850] kobject_add_internal+0x2c8/0x960 [ 2184.184624][T24850] kobject_add+0x16f/0x240 [ 2184.189067][T24850] ? kset_create_and_add+0x190/0x190 [ 2184.194383][T24850] ? do_raw_spin_unlock+0x173/0x230 [ 2184.199624][T24850] ? kobject_put+0xbe/0x440 [ 2184.204343][T24850] device_add+0x289/0x1aa0 [ 2184.208801][T24850] ? device_initialize+0x510/0x510 [ 2184.213943][T24850] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2184.220829][T24850] ? __init_waitqueue_head+0xca/0x150 [ 2184.226333][T24850] netdev_register_kobject+0x183/0x3f0 [ 2184.231820][T24850] register_netdevice+0xbdf/0x14a0 [ 2184.237127][T24850] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2184.243053][T24850] veth_newlink+0x4ef/0xa00 [ 2184.247582][T24850] ? veth_set_features+0x2d0/0x2d0 [ 2184.252755][T24850] ? rtnl_create_link+0xc9c/0xfd0 [ 2184.257987][T24850] ? __rtnl_newlink+0x108a/0x1930 [ 2184.263033][T24850] ? rtnl_newlink+0x67/0xa0 [ 2184.267608][T24850] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2184.272836][T24850] ? alloc_netdev_mqs+0xee6/0x1290 [ 2184.277982][T24850] ? rtnl_create_link+0xa6d/0xfd0 [ 2184.283043][T24850] ? veth_set_features+0x2d0/0x2d0 [ 2184.288268][T24850] __rtnl_newlink+0x1173/0x1930 [ 2184.293151][T24850] ? rtnl_link_unregister+0x260/0x260 [ 2184.298571][T24850] rtnl_newlink+0x67/0xa0 [ 2184.302916][T24850] ? __rtnl_newlink+0x1930/0x1930 [ 2184.307954][T24850] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2184.312911][T24850] ? rtnl_getlink+0xb40/0xb40 [ 2184.317708][T24850] netlink_rcv_skb+0x16b/0x440 [ 2184.322502][T24850] ? rtnl_getlink+0xb40/0xb40 [ 2184.327195][T24850] ? netlink_ack+0x1370/0x1370 [ 2184.332002][T24850] ? netlink_deliver_tap+0x1a0/0xd00 [ 2184.337313][T24850] netlink_unicast+0x53b/0x810 [ 2184.342101][T24850] ? netlink_attachskb+0x880/0x880 [ 2184.347325][T24850] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2184.353338][T24850] ? __phys_addr_symbol+0x30/0x70 [ 2184.358408][T24850] ? __check_object_size+0x323/0x730 [ 2184.363769][T24850] netlink_sendmsg+0x93c/0xe40 [ 2184.368575][T24850] ? netlink_unicast+0x810/0x810 [ 2184.373564][T24850] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2184.378871][T24850] ? netlink_unicast+0x810/0x810 [ 2184.383847][T24850] __sock_sendmsg+0xd5/0x180 [ 2184.388457][T24850] ____sys_sendmsg+0x6ac/0x940 [ 2184.393239][T24850] ? copy_msghdr_from_user+0x10b/0x160 [ 2184.398717][T24850] ? kernel_sendmsg+0x50/0x50 [ 2184.405935][T24850] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2184.412059][T24850] ___sys_sendmsg+0x135/0x1d0 [ 2184.416756][T24850] ? do_recvmmsg+0x740/0x740 [ 2184.421382][T24850] ? find_held_lock+0x2d/0x110 [ 2184.426224][T24850] ? __fget_light+0xe6/0x260 [ 2184.430842][T24850] __sys_sendmsg+0x117/0x1e0 [ 2184.435449][T24850] ? __sys_sendmsg_sock+0x30/0x30 [ 2184.440486][T24850] ? xfd_validate_state+0x5d/0x180 [ 2184.445640][T24850] ? syscall_enter_from_user_mode+0x26/0x80 [ 2184.451572][T24850] do_syscall_64+0x3f/0x110 [ 2184.456123][T24850] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2184.462035][T24850] RIP: 0033:0x7f70d3c7cae9 [ 2184.466547][T24850] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2184.486342][T24850] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2184.494854][T24850] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2184.502833][T24850] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2184.511080][T24850] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2184.519155][T24850] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2184.527791][T24850] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2184.535906][T24850] [ 2184.561050][T24850] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:14 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000102a100"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:14 executing program 2: ioctl$TUNGETDEVNETNS(0xffffffffffffffff, 0x54e3, 0x0) ioctl$TUNSETSNDBUF(0xffffffffffffffff, 0x400454d4, 0x0) ioctl$TUNGETVNETBE(0xffffffffffffffff, 0x800454df, &(0x7f0000000080)) sendmsg(0xffffffffffffffff, 0x0, 0x0) ioctl$TUNSETVNETHDRSZ(0xffffffffffffffff, 0x400454d8, &(0x7f0000001500)) bpf$MAP_CREATE_CONST_STR(0x0, 0x0, 0x0) r0 = openat$tun(0xffffffffffffff9c, &(0x7f00000015c0), 0x200, 0x0) ioctl$TUNSETTXFILTER(r0, 0x400454d1, &(0x7f0000001600)={0x0, 0x4, [@link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x1}, @empty, @multicast, @multicast]}) ioctl$sock_kcm_SIOCKCMUNATTACH(0xffffffffffffffff, 0x89e1, 0x0) ioctl$TUNSETPERSIST(0xffffffffffffffff, 0x400454cb, 0x1) openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0) ioctl$TUNSETVNETHDRSZ(r1, 0x400454d8, 0x0) bpf$BPF_BTF_LOAD(0x12, 0x0, 0x0) ioctl$TUNSETPERSIST(r1, 0x400454cb, 0x0) socket$kcm(0x29, 0x7, 0x0) ioctl$sock_kcm_SIOCKCMUNATTACH(0xffffffffffffffff, 0x89e1, 0x0) ioctl$sock_kcm_SIOCKCMUNATTACH(0xffffffffffffffff, 0x89e1, 0x0) 22:27:14 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x18000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:14 executing program 0: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) getsockopt$inet_int(r0, 0x0, 0x22, &(0x7f0000000080), &(0x7f00000000c0)=0x4) 22:27:14 executing program 5: r0 = socket$inet_udp(0x2, 0x2, 0x0) sendto$inet(r0, &(0x7f0000001140)="07206ff686c5ec071e8a28fbd18ec9cb8573bff080d95da2119495983cf1319d4f89df777cd33b1f1a25deebd2a9c713d983b32d", 0x34, 0x0, &(0x7f0000001200)={0x2, 0x4e20, @remote}, 0x10) [ 2184.601890][T24864] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2184.615667][T24868] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:27:14 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0xf0, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:14 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x18400000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:14 executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) bind$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @local}, 0x5) 22:27:14 executing program 5: r0 = socket$inet_udp(0x2, 0x2, 0x0) sendto$inet(r0, 0x0, 0x0, 0x8084, &(0x7f0000000180)={0x2, 0x4e23, @dev}, 0x10) 22:27:14 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) getsockopt$inet_int(r0, 0x0, 0x14, &(0x7f0000000000), &(0x7f0000000040)=0x4) [ 2184.802272][T24882] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2184.850670][T24882] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2184.887624][T24882] CPU: 1 PID: 24882 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 22:27:14 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) bind$netlink(r0, 0xffffffffffffffff, 0x0) 22:27:14 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x1f000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2184.897860][T24882] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2184.907966][T24882] Call Trace: [ 2184.911276][T24882] [ 2184.914258][T24882] dump_stack_lvl+0x125/0x1b0 [ 2184.918999][T24882] sysfs_warn_dup+0x7f/0xa0 [ 2184.923573][T24882] sysfs_create_dir_ns+0x247/0x2a0 [ 2184.928761][T24882] ? sysfs_create_mount_point+0xb0/0xb0 [ 2184.934371][T24882] ? spin_bug+0x1d0/0x1d0 [ 2184.938860][T24882] ? net_namespace+0x12/0x40 [ 2184.943490][T24882] ? device_namespace+0x8d/0xc0 [ 2184.948839][T24882] kobject_add_internal+0x2c8/0x960 [ 2184.954112][T24882] kobject_add+0x16f/0x240 [ 2184.958596][T24882] ? kset_create_and_add+0x190/0x190 [ 2184.963971][T24882] ? do_raw_spin_unlock+0x173/0x230 [ 2184.969245][T24882] ? kobject_put+0xbe/0x440 [ 2184.973826][T24882] device_add+0x289/0x1aa0 [ 2184.978308][T24882] ? device_initialize+0x510/0x510 [ 2184.983490][T24882] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2184.990405][T24882] ? __init_waitqueue_head+0xca/0x150 [ 2184.995942][T24882] netdev_register_kobject+0x183/0x3f0 [ 2185.001573][T24882] register_netdevice+0xbdf/0x14a0 [ 2185.006835][T24882] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2185.012800][T24882] veth_newlink+0x4ef/0xa00 [ 2185.017540][T24882] ? veth_set_features+0x2d0/0x2d0 [ 2185.022719][T24882] ? rtnl_create_link+0xc9c/0xfd0 [ 2185.027817][T24882] ? __rtnl_newlink+0x108a/0x1930 [ 2185.033344][T24882] ? rtnl_newlink+0x67/0xa0 [ 2185.038094][T24882] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2185.043355][T24882] ? alloc_netdev_mqs+0xee6/0x1290 [ 2185.048643][T24882] ? rtnl_create_link+0xa6d/0xfd0 [ 2185.053754][T24882] ? veth_set_features+0x2d0/0x2d0 [ 2185.058909][T24882] __rtnl_newlink+0x1173/0x1930 [ 2185.063817][T24882] ? rtnl_link_unregister+0x260/0x260 [ 2185.069359][T24882] rtnl_newlink+0x67/0xa0 [ 2185.073737][T24882] ? __rtnl_newlink+0x1930/0x1930 [ 2185.078815][T24882] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2185.083798][T24882] ? rtnl_getlink+0xb40/0xb40 [ 2185.088625][T24882] netlink_rcv_skb+0x16b/0x440 [ 2185.093434][T24882] ? rtnl_getlink+0xb40/0xb40 [ 2185.098151][T24882] ? netlink_ack+0x1370/0x1370 [ 2185.102984][T24882] ? netlink_deliver_tap+0x1a0/0xd00 [ 2185.108316][T24882] netlink_unicast+0x53b/0x810 [ 2185.113215][T24882] ? netlink_attachskb+0x880/0x880 [ 2185.118364][T24882] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2185.124299][T24882] ? __phys_addr_symbol+0x30/0x70 [ 2185.129371][T24882] ? __check_object_size+0x323/0x730 [ 2185.134805][T24882] netlink_sendmsg+0x93c/0xe40 [ 2185.139714][T24882] ? netlink_unicast+0x810/0x810 [ 2185.144792][T24882] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2185.150120][T24882] ? netlink_unicast+0x810/0x810 [ 2185.155113][T24882] __sock_sendmsg+0xd5/0x180 [ 2185.159744][T24882] ____sys_sendmsg+0x6ac/0x940 [ 2185.164559][T24882] ? copy_msghdr_from_user+0x10b/0x160 [ 2185.170148][T24882] ? kernel_sendmsg+0x50/0x50 [ 2185.174875][T24882] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2185.180916][T24882] ___sys_sendmsg+0x135/0x1d0 [ 2185.185639][T24882] ? do_recvmmsg+0x740/0x740 [ 2185.190291][T24882] ? find_held_lock+0x2d/0x110 [ 2185.195218][T24882] ? __fget_light+0xe6/0x260 [ 2185.199871][T24882] __sys_sendmsg+0x117/0x1e0 [ 2185.204519][T24882] ? __sys_sendmsg_sock+0x30/0x30 [ 2185.209585][T24882] ? xfd_validate_state+0x5d/0x180 [ 2185.214780][T24882] ? syscall_enter_from_user_mode+0x26/0x80 [ 2185.220740][T24882] do_syscall_64+0x3f/0x110 [ 2185.225316][T24882] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2185.231250][T24882] RIP: 0033:0x7f70d3c7cae9 [ 2185.235732][T24882] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2185.255473][T24882] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2185.263936][T24882] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2185.271944][T24882] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2185.279951][T24882] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2185.287955][T24882] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2185.295951][T24882] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2185.304057][T24882] [ 2185.327427][T24882] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2185.364764][T24891] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2185.379159][T24891] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2185.428615][T24891] CPU: 1 PID: 24891 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2185.439354][T24891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2185.449707][T24891] Call Trace: [ 2185.453012][T24891] [ 2185.455960][T24891] dump_stack_lvl+0x125/0x1b0 [ 2185.460709][T24891] sysfs_warn_dup+0x7f/0xa0 [ 2185.465269][T24891] sysfs_create_dir_ns+0x247/0x2a0 [ 2185.470434][T24891] ? sysfs_create_mount_point+0xb0/0xb0 [ 2185.476201][T24891] ? spin_bug+0x1d0/0x1d0 [ 2185.480582][T24891] ? net_namespace+0x12/0x40 [ 2185.485223][T24891] ? device_namespace+0x8d/0xc0 [ 2185.490131][T24891] kobject_add_internal+0x2c8/0x960 [ 2185.495391][T24891] kobject_add+0x16f/0x240 [ 2185.499944][T24891] ? kset_create_and_add+0x190/0x190 [ 2185.505281][T24891] ? do_raw_spin_unlock+0x173/0x230 [ 2185.510565][T24891] ? kobject_put+0xbe/0x440 [ 2185.515124][T24891] device_add+0x289/0x1aa0 [ 2185.519668][T24891] ? device_initialize+0x510/0x510 [ 2185.524835][T24891] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2185.531729][T24891] ? __init_waitqueue_head+0xca/0x150 [ 2185.537153][T24891] netdev_register_kobject+0x183/0x3f0 [ 2185.542672][T24891] register_netdevice+0xbdf/0x14a0 [ 2185.547821][T24891] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2185.553748][T24891] ? validate_linkmsg+0x6fc/0x9c0 [ 2185.558823][T24891] br_dev_newlink+0x27/0x110 [ 2185.563460][T24891] ? br_changelink+0x1760/0x1760 [ 2185.568417][T24891] __rtnl_newlink+0x1173/0x1930 [ 2185.573292][T24891] ? rtnl_link_unregister+0x260/0x260 [ 2185.578711][T24891] rtnl_newlink+0x67/0xa0 [ 2185.583060][T24891] ? __rtnl_newlink+0x1930/0x1930 [ 2185.588190][T24891] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2185.593153][T24891] ? rtnl_getlink+0xb40/0xb40 [ 2185.598204][T24891] netlink_rcv_skb+0x16b/0x440 [ 2185.602994][T24891] ? rtnl_getlink+0xb40/0xb40 [ 2185.607687][T24891] ? netlink_ack+0x1370/0x1370 [ 2185.612667][T24891] ? netlink_deliver_tap+0x1a0/0xd00 [ 2185.617978][T24891] netlink_unicast+0x53b/0x810 [ 2185.622847][T24891] ? netlink_attachskb+0x880/0x880 [ 2185.628144][T24891] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2185.634148][T24891] ? __phys_addr_symbol+0x30/0x70 [ 2185.639199][T24891] ? __check_object_size+0x323/0x730 [ 2185.644516][T24891] netlink_sendmsg+0x93c/0xe40 [ 2185.649311][T24891] ? netlink_unicast+0x810/0x810 [ 2185.654284][T24891] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2185.659581][T24891] ? netlink_unicast+0x810/0x810 [ 2185.664535][T24891] __sock_sendmsg+0xd5/0x180 [ 2185.669145][T24891] ____sys_sendmsg+0x6ac/0x940 [ 2185.673920][T24891] ? copy_msghdr_from_user+0x10b/0x160 [ 2185.679392][T24891] ? kernel_sendmsg+0x50/0x50 [ 2185.684098][T24891] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2185.690109][T24891] ___sys_sendmsg+0x135/0x1d0 [ 2185.694808][T24891] ? do_recvmmsg+0x740/0x740 [ 2185.699417][T24891] ? find_held_lock+0x2d/0x110 [ 2185.704316][T24891] ? __fget_light+0xe6/0x260 [ 2185.708945][T24891] __sys_sendmsg+0x117/0x1e0 [ 2185.713647][T24891] ? __sys_sendmsg_sock+0x30/0x30 [ 2185.718683][T24891] ? xfd_validate_state+0x5d/0x180 [ 2185.723840][T24891] ? syscall_enter_from_user_mode+0x26/0x80 [ 2185.729776][T24891] do_syscall_64+0x3f/0x110 [ 2185.734410][T24891] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2185.740346][T24891] RIP: 0033:0x7f874a47cae9 [ 2185.744784][T24891] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2185.764415][T24891] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2185.772862][T24891] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2185.780852][T24891] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2185.788835][T24891] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2185.796829][T24891] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2185.804818][T24891] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2185.812830][T24891] [ 2185.824406][T24891] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:15 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000103a100"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:15 executing program 2: bpf$BPF_PROG_ATTACH(0x8, &(0x7f0000000380)={@ifindex, 0xffffffffffffffff, 0x37}, 0x20) 22:27:15 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x1fffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:15 executing program 0: r0 = socket(0x1c, 0x10000001, 0x84) sendmsg$unix(r0, &(0x7f0000000180)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)=[@rights], 0x10}, 0x0) 22:27:15 executing program 5: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) sendto$inet(r0, &(0x7f0000001000)="3a4dcf25f824d5c631b5af1a", 0xc, 0x0, &(0x7f0000001040)={0x2, 0x0, @empty}, 0x10) [ 2185.894127][T24892] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. 22:27:16 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x300, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:16 executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) bind$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @mcast2}, 0x1c) 22:27:16 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x20000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:16 executing program 2: r0 = socket$inet_tcp(0x2, 0x1, 0x0) getsockopt$inet_int(r0, 0x0, 0x1, &(0x7f0000000000), &(0x7f0000000080)=0x4) 22:27:16 executing program 5: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_mreqsrc(r0, 0x0, 0x2, 0x0, 0x0) 22:27:16 executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000380)={0x18, 0xd, &(0x7f0000000080)=@raw=[@snprintf], &(0x7f0000000240)='syzkaller\x00', 0x9, 0x16, &(0x7f0000000280)=""/22}, 0x90) [ 2186.132280][T24911] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' 22:27:16 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x2d010000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2186.188770][T24911] CPU: 1 PID: 24911 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2186.198917][T24911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2186.209094][T24911] Call Trace: [ 2186.212417][T24911] [ 2186.215473][T24911] dump_stack_lvl+0x125/0x1b0 [ 2186.220212][T24911] sysfs_warn_dup+0x7f/0xa0 [ 2186.224783][T24911] sysfs_create_dir_ns+0x247/0x2a0 [ 2186.229971][T24911] ? sysfs_create_mount_point+0xb0/0xb0 [ 2186.235591][T24911] ? spin_bug+0x1d0/0x1d0 [ 2186.240072][T24911] ? net_namespace+0x12/0x40 [ 2186.244797][T24911] ? device_namespace+0x8d/0xc0 [ 2186.249728][T24911] kobject_add_internal+0x2c8/0x960 [ 2186.255121][T24911] kobject_add+0x16f/0x240 [ 2186.259652][T24911] ? kset_create_and_add+0x190/0x190 [ 2186.265191][T24911] ? do_raw_spin_unlock+0x173/0x230 [ 2186.270607][T24911] ? kobject_put+0xbe/0x440 [ 2186.275182][T24911] device_add+0x289/0x1aa0 [ 2186.279682][T24911] ? device_initialize+0x510/0x510 [ 2186.284859][T24911] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2186.291774][T24911] ? __init_waitqueue_head+0xca/0x150 [ 2186.297200][T24911] netdev_register_kobject+0x183/0x3f0 [ 2186.302696][T24911] register_netdevice+0xbdf/0x14a0 [ 2186.307855][T24911] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2186.313782][T24911] ? validate_linkmsg+0x6fc/0x9c0 [ 2186.318856][T24911] br_dev_newlink+0x27/0x110 [ 2186.323482][T24911] ? br_changelink+0x1760/0x1760 [ 2186.328446][T24911] __rtnl_newlink+0x1173/0x1930 [ 2186.333324][T24911] ? rtnl_link_unregister+0x260/0x260 [ 2186.338750][T24911] rtnl_newlink+0x67/0xa0 [ 2186.343106][T24911] ? __rtnl_newlink+0x1930/0x1930 [ 2186.348173][T24911] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2186.353157][T24911] ? rtnl_getlink+0xb40/0xb40 [ 2186.357877][T24911] netlink_rcv_skb+0x16b/0x440 [ 2186.362661][T24911] ? rtnl_getlink+0xb40/0xb40 [ 2186.367355][T24911] ? netlink_ack+0x1370/0x1370 [ 2186.372153][T24911] ? netlink_deliver_tap+0x1a0/0xd00 [ 2186.377462][T24911] netlink_unicast+0x53b/0x810 [ 2186.382250][T24911] ? netlink_attachskb+0x880/0x880 [ 2186.387377][T24911] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2186.393284][T24911] ? __phys_addr_symbol+0x30/0x70 [ 2186.398325][T24911] ? __check_object_size+0x323/0x730 [ 2186.403643][T24911] netlink_sendmsg+0x93c/0xe40 [ 2186.408428][T24911] ? netlink_unicast+0x810/0x810 [ 2186.413400][T24911] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2186.418700][T24911] ? netlink_unicast+0x810/0x810 [ 2186.423659][T24911] __sock_sendmsg+0xd5/0x180 [ 2186.428375][T24911] ____sys_sendmsg+0x6ac/0x940 [ 2186.433152][T24911] ? copy_msghdr_from_user+0x10b/0x160 [ 2186.440735][T24911] ? kernel_sendmsg+0x50/0x50 [ 2186.445432][T24911] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2186.451442][T24911] ___sys_sendmsg+0x135/0x1d0 [ 2186.456152][T24911] ? do_recvmmsg+0x740/0x740 [ 2186.460762][T24911] ? find_held_lock+0x2d/0x110 [ 2186.465576][T24911] ? __fget_light+0xe6/0x260 [ 2186.470195][T24911] __sys_sendmsg+0x117/0x1e0 [ 2186.474810][T24911] ? __sys_sendmsg_sock+0x30/0x30 [ 2186.479852][T24911] ? xfd_validate_state+0x5d/0x180 [ 2186.485009][T24911] ? syscall_enter_from_user_mode+0x26/0x80 [ 2186.491011][T24911] do_syscall_64+0x3f/0x110 [ 2186.495540][T24911] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2186.501467][T24911] RIP: 0033:0x7f874a47cae9 [ 2186.505896][T24911] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2186.525815][T24911] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2186.534247][T24911] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2186.542233][T24911] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2186.550219][T24911] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2186.558199][T24911] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2186.566180][T24911] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2186.574272][T24911] [ 2186.648887][T24911] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2186.788642][T24916] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2186.798067][T24916] CPU: 0 PID: 24916 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2186.808176][T24916] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2186.818352][T24916] Call Trace: [ 2186.821836][T24916] [ 2186.824800][T24916] dump_stack_lvl+0x125/0x1b0 [ 2186.829532][T24916] sysfs_warn_dup+0x7f/0xa0 [ 2186.834196][T24916] sysfs_create_dir_ns+0x247/0x2a0 [ 2186.839625][T24916] ? sysfs_create_mount_point+0xb0/0xb0 [ 2186.845311][T24916] ? spin_bug+0x1d0/0x1d0 [ 2186.849699][T24916] ? net_namespace+0x12/0x40 [ 2186.854324][T24916] ? device_namespace+0x8d/0xc0 [ 2186.859239][T24916] kobject_add_internal+0x2c8/0x960 [ 2186.864601][T24916] kobject_add+0x16f/0x240 [ 2186.869065][T24916] ? kset_create_and_add+0x190/0x190 [ 2186.874419][T24916] ? do_raw_spin_unlock+0x173/0x230 [ 2186.879680][T24916] ? kobject_put+0xbe/0x440 [ 2186.884342][T24916] device_add+0x289/0x1aa0 [ 2186.888897][T24916] ? device_initialize+0x510/0x510 [ 2186.894063][T24916] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2186.901062][T24916] ? __init_waitqueue_head+0xca/0x150 [ 2186.906494][T24916] netdev_register_kobject+0x183/0x3f0 [ 2186.912010][T24916] register_netdevice+0xbdf/0x14a0 [ 2186.917176][T24916] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2186.923137][T24916] veth_newlink+0x4ef/0xa00 [ 2186.927868][T24916] ? veth_set_features+0x2d0/0x2d0 [ 2186.933036][T24916] ? rtnl_create_link+0xc9c/0xfd0 [ 2186.938116][T24916] ? __rtnl_newlink+0x108a/0x1930 [ 2186.943200][T24916] ? rtnl_newlink+0x67/0xa0 [ 2186.947804][T24916] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2186.953057][T24916] ? alloc_netdev_mqs+0xee6/0x1290 [ 2186.958229][T24916] ? rtnl_create_link+0xa6d/0xfd0 [ 2186.963311][T24916] ? veth_set_features+0x2d0/0x2d0 [ 2186.968745][T24916] __rtnl_newlink+0x1173/0x1930 [ 2186.973665][T24916] ? rtnl_link_unregister+0x260/0x260 [ 2186.979124][T24916] rtnl_newlink+0x67/0xa0 [ 2186.983497][T24916] ? __rtnl_newlink+0x1930/0x1930 [ 2186.988571][T24916] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2186.993562][T24916] ? rtnl_getlink+0xb40/0xb40 [ 2186.998373][T24916] ? find_held_lock+0x2d/0x110 [ 2187.003189][T24916] ? rcu_preempt_deferred_qs_irqrestore+0x684/0xdb0 [ 2187.009822][T24916] ? reacquire_held_locks+0x4b0/0x4b0 [ 2187.015249][T24916] netlink_rcv_skb+0x16b/0x440 [ 2187.020061][T24916] ? rtnl_getlink+0xb40/0xb40 [ 2187.024782][T24916] ? netlink_ack+0x1370/0x1370 [ 2187.029585][T24916] ? _raw_spin_unlock_irqrestore+0x3b/0x70 [ 2187.035453][T24916] ? __rcu_read_unlock+0x2ad/0x570 [ 2187.040609][T24916] ? netlink_deliver_tap+0x1a0/0xd00 [ 2187.045956][T24916] netlink_unicast+0x53b/0x810 [ 2187.050769][T24916] ? netlink_attachskb+0x880/0x880 [ 2187.055921][T24916] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2187.061862][T24916] ? __phys_addr_symbol+0x30/0x70 [ 2187.066930][T24916] ? __check_object_size+0x323/0x730 [ 2187.072294][T24916] netlink_sendmsg+0x93c/0xe40 [ 2187.077365][T24916] ? netlink_unicast+0x810/0x810 [ 2187.082350][T24916] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2187.087682][T24916] ? netlink_unicast+0x810/0x810 [ 2187.092760][T24916] __sock_sendmsg+0xd5/0x180 [ 2187.097382][T24916] ____sys_sendmsg+0x6ac/0x940 [ 2187.102176][T24916] ? copy_msghdr_from_user+0x10b/0x160 [ 2187.107684][T24916] ? kernel_sendmsg+0x50/0x50 [ 2187.112414][T24916] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2187.118450][T24916] ___sys_sendmsg+0x135/0x1d0 [ 2187.123168][T24916] ? do_recvmmsg+0x740/0x740 [ 2187.127792][T24916] ? find_held_lock+0x2d/0x110 [ 2187.132726][T24916] ? __fget_light+0xe6/0x260 [ 2187.137366][T24916] __sys_sendmsg+0x117/0x1e0 [ 2187.141993][T24916] ? __sys_sendmsg_sock+0x30/0x30 [ 2187.147049][T24916] ? xfd_validate_state+0x5d/0x180 [ 2187.152229][T24916] ? syscall_enter_from_user_mode+0x26/0x80 [ 2187.158176][T24916] do_syscall_64+0x3f/0x110 [ 2187.162737][T24916] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2187.168804][T24916] RIP: 0033:0x7f70d3c7cae9 [ 2187.173249][T24916] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2187.192896][T24916] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2187.201448][T24916] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2187.209550][T24916] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2187.217549][T24916] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2187.226079][T24916] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2187.234348][T24916] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2187.242371][T24916] [ 2187.260986][T24916] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:17 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000100a200"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:17 executing program 0: pselect6(0x0, 0x0, 0x0, 0x0, &(0x7f0000000700), 0x0) 22:27:17 executing program 2: bpf$ENABLE_STATS(0x20, 0x0, 0x0) ioctl$SIOCGIFHWADDR(0xffffffffffffffff, 0x8927, &(0x7f0000000000)={'veth1\x00'}) 22:27:17 executing program 5: socket(0x0, 0x80f, 0x0) 22:27:17 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x30000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:17 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x500, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:17 executing program 5: bpf$MAP_CREATE(0x0, &(0x7f0000000000)=@bloom_filter={0x1e, 0x0, 0x10000, 0x80, 0x0, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x40000, 0x0, 0xe}, 0x48) 22:27:17 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x39030000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:17 executing program 0: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000001c0)={0x11, 0x5, &(0x7f0000000100)=@framed={{}, [@map_val]}, &(0x7f0000000140)='syzkaller\x00', 0x8}, 0x90) 22:27:17 executing program 2: bpf$ENABLE_STATS(0x20, 0x0, 0x0) ioctl$SIOCGIFHWADDR(0xffffffffffffffff, 0x8927, &(0x7f0000000000)={'veth1\x00'}) [ 2187.472510][T24942] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2187.508019][T24942] CPU: 1 PID: 24942 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 22:27:17 executing program 0: r0 = socket$alg(0x26, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX_80211(r0, 0x8933, 0x0) [ 2187.518167][T24942] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2187.528263][T24942] Call Trace: [ 2187.531583][T24942] [ 2187.534546][T24942] dump_stack_lvl+0x125/0x1b0 [ 2187.539285][T24942] sysfs_warn_dup+0x7f/0xa0 [ 2187.543865][T24942] sysfs_create_dir_ns+0x247/0x2a0 [ 2187.549038][T24942] ? sysfs_create_mount_point+0xb0/0xb0 [ 2187.554645][T24942] ? spin_bug+0x1d0/0x1d0 [ 2187.559042][T24942] ? net_namespace+0x12/0x40 [ 2187.563755][T24942] ? device_namespace+0x8d/0xc0 [ 2187.568654][T24942] kobject_add_internal+0x2c8/0x960 [ 2187.574078][T24942] kobject_add+0x16f/0x240 [ 2187.578620][T24942] ? kset_create_and_add+0x190/0x190 [ 2187.583940][T24942] ? do_raw_spin_unlock+0x173/0x230 [ 2187.589169][T24942] ? kobject_put+0xbe/0x440 [ 2187.593708][T24942] device_add+0x289/0x1aa0 [ 2187.598145][T24942] ? device_initialize+0x510/0x510 [ 2187.603408][T24942] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2187.611407][T24942] ? __init_waitqueue_head+0xca/0x150 [ 2187.616898][T24942] netdev_register_kobject+0x183/0x3f0 [ 2187.622472][T24942] register_netdevice+0xbdf/0x14a0 [ 2187.627607][T24942] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2187.633872][T24942] ? validate_linkmsg+0x6fc/0x9c0 [ 2187.638931][T24942] br_dev_newlink+0x27/0x110 [ 2187.643550][T24942] ? br_changelink+0x1760/0x1760 [ 2187.648525][T24942] __rtnl_newlink+0x1173/0x1930 [ 2187.653408][T24942] ? rtnl_link_unregister+0x260/0x260 [ 2187.658832][T24942] rtnl_newlink+0x67/0xa0 [ 2187.663182][T24942] ? __rtnl_newlink+0x1930/0x1930 [ 2187.668326][T24942] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2187.673458][T24942] ? rtnl_getlink+0xb40/0xb40 [ 2187.678169][T24942] netlink_rcv_skb+0x16b/0x440 [ 2187.682983][T24942] ? rtnl_getlink+0xb40/0xb40 [ 2187.687694][T24942] ? netlink_ack+0x1370/0x1370 [ 2187.692517][T24942] ? netlink_deliver_tap+0x1a0/0xd00 [ 2187.697932][T24942] netlink_unicast+0x53b/0x810 [ 2187.702821][T24942] ? netlink_attachskb+0x880/0x880 [ 2187.708035][T24942] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2187.713957][T24942] ? __phys_addr_symbol+0x30/0x70 [ 2187.719033][T24942] ? __check_object_size+0x323/0x730 [ 2187.724364][T24942] netlink_sendmsg+0x93c/0xe40 [ 2187.729163][T24942] ? netlink_unicast+0x810/0x810 [ 2187.734132][T24942] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2187.739437][T24942] ? netlink_unicast+0x810/0x810 [ 2187.744402][T24942] __sock_sendmsg+0xd5/0x180 [ 2187.749019][T24942] ____sys_sendmsg+0x6ac/0x940 [ 2187.753800][T24942] ? copy_msghdr_from_user+0x10b/0x160 [ 2187.759281][T24942] ? kernel_sendmsg+0x50/0x50 [ 2187.764063][T24942] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2187.770163][T24942] ___sys_sendmsg+0x135/0x1d0 [ 2187.774861][T24942] ? do_recvmmsg+0x740/0x740 [ 2187.779505][T24942] ? find_held_lock+0x2d/0x110 [ 2187.784328][T24942] ? __fget_light+0xe6/0x260 [ 2187.788955][T24942] __sys_sendmsg+0x117/0x1e0 [ 2187.793660][T24942] ? __sys_sendmsg_sock+0x30/0x30 [ 2187.798817][T24942] ? xfd_validate_state+0x5d/0x180 [ 2187.803984][T24942] ? syscall_enter_from_user_mode+0x26/0x80 [ 2187.809906][T24942] do_syscall_64+0x3f/0x110 [ 2187.814451][T24942] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2187.820361][T24942] RIP: 0033:0x7f874a47cae9 [ 2187.824894][T24942] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2187.844531][T24942] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2187.853056][T24942] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2187.861144][T24942] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2187.869129][T24942] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2187.877196][T24942] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2187.885183][T24942] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2187.893192][T24942] [ 2187.925593][T24942] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:18 executing program 5: r0 = socket$inet_smc(0x2b, 0x1, 0x0) ioctl$BTRFS_IOC_DEV_INFO(r0, 0xd000941e, 0x0) [ 2187.998703][T24944] __nla_validate_parse: 6 callbacks suppressed [ 2187.998727][T24944] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2188.110368][T24944] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2188.153137][T24944] CPU: 0 PID: 24944 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2188.163435][T24944] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2188.173519][T24944] Call Trace: [ 2188.176820][T24944] [ 2188.179767][T24944] dump_stack_lvl+0x125/0x1b0 [ 2188.184499][T24944] sysfs_warn_dup+0x7f/0xa0 [ 2188.189066][T24944] sysfs_create_dir_ns+0x247/0x2a0 [ 2188.194232][T24944] ? sysfs_create_mount_point+0xb0/0xb0 [ 2188.199841][T24944] ? spin_bug+0x1d0/0x1d0 [ 2188.204228][T24944] ? net_namespace+0x12/0x40 [ 2188.208848][T24944] ? device_namespace+0x8d/0xc0 [ 2188.213749][T24944] kobject_add_internal+0x2c8/0x960 [ 2188.219007][T24944] kobject_add+0x16f/0x240 [ 2188.223652][T24944] ? kset_create_and_add+0x190/0x190 [ 2188.229002][T24944] ? do_raw_spin_unlock+0x173/0x230 [ 2188.234516][T24944] ? kobject_put+0xbe/0x440 [ 2188.239086][T24944] device_add+0x289/0x1aa0 [ 2188.243544][T24944] ? device_initialize+0x510/0x510 [ 2188.248714][T24944] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2188.255610][T24944] ? __init_waitqueue_head+0xca/0x150 [ 2188.261033][T24944] netdev_register_kobject+0x183/0x3f0 [ 2188.266547][T24944] register_netdevice+0xbdf/0x14a0 [ 2188.271714][T24944] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2188.277664][T24944] veth_newlink+0x4ef/0xa00 [ 2188.282218][T24944] ? veth_set_features+0x2d0/0x2d0 [ 2188.287366][T24944] ? rtnl_create_link+0xc9c/0xfd0 [ 2188.292440][T24944] ? __rtnl_newlink+0x108a/0x1930 [ 2188.297503][T24944] ? rtnl_newlink+0x67/0xa0 [ 2188.302107][T24944] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2188.307353][T24944] ? alloc_netdev_mqs+0xee6/0x1290 [ 2188.312525][T24944] ? rtnl_create_link+0xa6d/0xfd0 [ 2188.317615][T24944] ? veth_set_features+0x2d0/0x2d0 [ 2188.322773][T24944] __rtnl_newlink+0x1173/0x1930 [ 2188.327679][T24944] ? rtnl_link_unregister+0x260/0x260 [ 2188.333220][T24944] rtnl_newlink+0x67/0xa0 [ 2188.337584][T24944] ? __rtnl_newlink+0x1930/0x1930 [ 2188.342643][T24944] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2188.347622][T24944] ? rtnl_getlink+0xb40/0xb40 [ 2188.352354][T24944] netlink_rcv_skb+0x16b/0x440 [ 2188.357172][T24944] ? rtnl_getlink+0xb40/0xb40 [ 2188.361890][T24944] ? netlink_ack+0x1370/0x1370 [ 2188.366714][T24944] ? netlink_deliver_tap+0x1a0/0xd00 [ 2188.372094][T24944] netlink_unicast+0x53b/0x810 [ 2188.376919][T24944] ? netlink_attachskb+0x880/0x880 [ 2188.382066][T24944] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2188.387998][T24944] ? __phys_addr_symbol+0x30/0x70 [ 2188.393148][T24944] ? __check_object_size+0x323/0x730 [ 2188.399367][T24944] netlink_sendmsg+0x93c/0xe40 [ 2188.404427][T24944] ? netlink_unicast+0x810/0x810 [ 2188.409508][T24944] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2188.415099][T24944] ? netlink_unicast+0x810/0x810 [ 2188.420082][T24944] __sock_sendmsg+0xd5/0x180 [ 2188.424716][T24944] ____sys_sendmsg+0x6ac/0x940 [ 2188.429518][T24944] ? copy_msghdr_from_user+0x10b/0x160 [ 2188.435023][T24944] ? kernel_sendmsg+0x50/0x50 [ 2188.439740][T24944] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2188.445779][T24944] ___sys_sendmsg+0x135/0x1d0 [ 2188.450499][T24944] ? do_recvmmsg+0x740/0x740 [ 2188.455132][T24944] ? find_held_lock+0x2d/0x110 [ 2188.459983][T24944] ? __fget_light+0xe6/0x260 [ 2188.464626][T24944] __sys_sendmsg+0x117/0x1e0 [ 2188.469258][T24944] ? __sys_sendmsg_sock+0x30/0x30 [ 2188.474319][T24944] ? xfd_validate_state+0x5d/0x180 [ 2188.479514][T24944] ? syscall_enter_from_user_mode+0x26/0x80 [ 2188.485456][T24944] do_syscall_64+0x3f/0x110 [ 2188.490005][T24944] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2188.496110][T24944] RIP: 0033:0x7f70d3c7cae9 [ 2188.500557][T24944] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2188.520299][T24944] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2188.528754][T24944] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2188.536765][T24944] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004 [ 2188.544766][T24944] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2188.552764][T24944] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2188.560765][T24944] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2188.568792][T24944] [ 2188.586701][T24944] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:18 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000101a200"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:18 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x3c000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:18 executing program 0: r0 = socket(0x29, 0x2, 0x0) sendmsg$L2TP_CMD_TUNNEL_CREATE(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={0x0}}, 0x0) 22:27:18 executing program 2: bpf$MAP_CREATE_TAIL_CALL(0x3, &(0x7f0000002840), 0x48) 22:27:18 executing program 5: bpf$MAP_CREATE_TAIL_CALL(0xa, &(0x7f0000002840), 0x48) [ 2188.612999][T24942] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2188.633437][T24950] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. 22:27:18 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x600, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:18 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x3f000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:18 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_TX_POWER(r0, &(0x7f0000001480)={0x0, 0x0, &(0x7f0000001440)={&(0x7f0000001400)={0x14}, 0x14}}, 0x0) sendmsg$NL802154_CMD_SET_SHORT_ADDR(r0, &(0x7f0000001600)={&(0x7f0000001500)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000015c0)={&(0x7f0000001580)={0x14}, 0x14}}, 0x0) 22:27:18 executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) getsockopt$inet_buf(r0, 0x0, 0x0, &(0x7f0000000080)=""/101, &(0x7f0000000100)=0xffffffffffffffbc) 22:27:18 executing program 5: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_mreqsrc(r0, 0x0, 0x2, &(0x7f0000000040)={@multicast1, @multicast2, @private}, 0xc) [ 2188.762325][T24972] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2188.787022][T24972] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2188.819777][T24972] CPU: 0 PID: 24972 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2188.829919][T24972] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2188.840099][T24972] Call Trace: [ 2188.843417][T24972] [ 2188.846378][T24972] dump_stack_lvl+0x125/0x1b0 [ 2188.851124][T24972] sysfs_warn_dup+0x7f/0xa0 [ 2188.855694][T24972] sysfs_create_dir_ns+0x247/0x2a0 [ 2188.860875][T24972] ? sysfs_create_mount_point+0xb0/0xb0 [ 2188.866494][T24972] ? spin_bug+0x1d0/0x1d0 [ 2188.871126][T24972] ? net_namespace+0x12/0x40 [ 2188.875785][T24972] ? device_namespace+0x8d/0xc0 [ 2188.880695][T24972] kobject_add_internal+0x2c8/0x960 [ 2188.885955][T24972] kobject_add+0x16f/0x240 [ 2188.890430][T24972] ? kset_create_and_add+0x190/0x190 [ 2188.895775][T24972] ? do_raw_spin_unlock+0x173/0x230 [ 2188.901132][T24972] ? kobject_put+0xbe/0x440 [ 2188.905737][T24972] device_add+0x289/0x1aa0 [ 2188.910293][T24972] ? device_initialize+0x510/0x510 [ 2188.915459][T24972] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2188.922341][T24972] ? __init_waitqueue_head+0xca/0x150 [ 2188.927763][T24972] netdev_register_kobject+0x183/0x3f0 [ 2188.933274][T24972] register_netdevice+0xbdf/0x14a0 [ 2188.938438][T24972] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2188.944404][T24972] ? validate_linkmsg+0x6fc/0x9c0 [ 2188.949469][T24972] br_dev_newlink+0x27/0x110 [ 2188.954092][T24972] ? br_changelink+0x1760/0x1760 [ 2188.959059][T24972] __rtnl_newlink+0x1173/0x1930 [ 2188.963942][T24972] ? rtnl_link_unregister+0x260/0x260 [ 2188.969374][T24972] rtnl_newlink+0x67/0xa0 [ 2188.973722][T24972] ? __rtnl_newlink+0x1930/0x1930 [ 2188.978880][T24972] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2188.983864][T24972] ? rtnl_getlink+0xb40/0xb40 [ 2188.988590][T24972] netlink_rcv_skb+0x16b/0x440 [ 2188.993409][T24972] ? rtnl_getlink+0xb40/0xb40 [ 2188.998138][T24972] ? netlink_ack+0x1370/0x1370 [ 2189.002946][T24972] ? netlink_deliver_tap+0x1a0/0xd00 [ 2189.008263][T24972] netlink_unicast+0x53b/0x810 [ 2189.013053][T24972] ? netlink_attachskb+0x880/0x880 [ 2189.018188][T24972] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2189.024120][T24972] ? __phys_addr_symbol+0x30/0x70 [ 2189.029268][T24972] ? __check_object_size+0x323/0x730 [ 2189.034610][T24972] netlink_sendmsg+0x93c/0xe40 [ 2189.039411][T24972] ? netlink_unicast+0x810/0x810 [ 2189.044388][T24972] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2189.049694][T24972] ? netlink_unicast+0x810/0x810 [ 2189.054652][T24972] __sock_sendmsg+0xd5/0x180 [ 2189.059261][T24972] ____sys_sendmsg+0x6ac/0x940 [ 2189.064040][T24972] ? copy_msghdr_from_user+0x10b/0x160 [ 2189.069514][T24972] ? kernel_sendmsg+0x50/0x50 [ 2189.074216][T24972] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2189.080238][T24972] ___sys_sendmsg+0x135/0x1d0 [ 2189.084940][T24972] ? do_recvmmsg+0x740/0x740 [ 2189.089547][T24972] ? find_held_lock+0x2d/0x110 [ 2189.094363][T24972] ? __fget_light+0xe6/0x260 [ 2189.098979][T24972] __sys_sendmsg+0x117/0x1e0 [ 2189.103592][T24972] ? __sys_sendmsg_sock+0x30/0x30 [ 2189.108629][T24972] ? xfd_validate_state+0x5d/0x180 [ 2189.113785][T24972] ? syscall_enter_from_user_mode+0x26/0x80 [ 2189.119702][T24972] do_syscall_64+0x3f/0x110 [ 2189.124236][T24972] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2189.130151][T24972] RIP: 0033:0x7f874a47cae9 [ 2189.134586][T24972] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2189.154482][T24972] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2189.162923][T24972] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2189.170907][T24972] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2189.178889][T24972] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2189.186959][T24972] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2189.194938][T24972] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2189.203023][T24972] 22:27:19 executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) bind$inet6(r0, &(0x7f0000000100)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(r0, 0x6, 0xe, &(0x7f0000000440)={@in6={{0xa, 0x0, 0x0, @remote}}, 0x0, 0x0, 0x48, 0x0, "392c346a371805f8613d6d8cdefe47fa6eee8f7820d7961f0ab34da4594eb290f47a12e4e3d8f21d7318263621a8c7f18b8a01e3b2d140667468bd026b6bafd51034ec55f373d84ce68eabfc731c4412"}, 0xd8) syz_emit_ethernet(0x4a, &(0x7f0000000000)={@local, @remote, @void, {@ipv6={0x86dd, @tcp={0x0, 0x6, '\x00', 0x14, 0x6, 0x0, @remote, @local, {[], {{0x0, 0x4e22, 0x41424344, 0x41424344, 0x0, 0x0, 0x5, 0x2}}}}}}}, 0x0) 22:27:19 executing program 2: r0 = socket$nl_xfrm(0x10, 0x3, 0x6) sendmsg$nl_xfrm(r0, &(0x7f00000002c0)={&(0x7f0000000000), 0xc, &(0x7f0000000280)={&(0x7f0000000040)=@newsa={0x124, 0x10, 0x1, 0x0, 0x0, {{@in=@remote, @in6=@loopback}, {@in6=@initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, 0x0, 0x6c}, @in=@broadcast, {}, {}, {}, 0x0, 0x0, 0x2}, [@etimer_thresh={0x8}, @user_kmaddress={0x2c, 0x13, {@in=@multicast2, @in=@initdev={0xac, 0x1e, 0x0, 0x0}}}]}, 0x124}}, 0x0) [ 2189.228228][T24972] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2189.363321][T24982] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2189.384427][T24992] MD5 Hash not found for [fe80::bb].0->[fe80::aa].20002 [S]L3 index 0 [ 2189.416627][T24982] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2189.437350][T24982] CPU: 0 PID: 24982 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2189.447479][T24982] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2189.457568][T24982] Call Trace: [ 2189.460876][T24982] [ 2189.463833][T24982] dump_stack_lvl+0x125/0x1b0 [ 2189.468564][T24982] sysfs_warn_dup+0x7f/0xa0 [ 2189.473126][T24982] sysfs_create_dir_ns+0x247/0x2a0 [ 2189.478295][T24982] ? sysfs_create_mount_point+0xb0/0xb0 [ 2189.483895][T24982] ? spin_bug+0x1d0/0x1d0 [ 2189.488380][T24982] ? net_namespace+0x12/0x40 [ 2189.493016][T24982] ? device_namespace+0x8d/0xc0 [ 2189.497917][T24982] kobject_add_internal+0x2c8/0x960 [ 2189.503186][T24982] kobject_add+0x16f/0x240 [ 2189.507655][T24982] ? kset_create_and_add+0x190/0x190 [ 2189.513014][T24982] ? do_raw_spin_unlock+0x173/0x230 [ 2189.518308][T24982] ? kobject_put+0xbe/0x440 [ 2189.522877][T24982] device_add+0x289/0x1aa0 [ 2189.527348][T24982] ? device_initialize+0x510/0x510 [ 2189.532523][T24982] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2189.539451][T24982] ? __init_waitqueue_head+0xca/0x150 [ 2189.544894][T24982] netdev_register_kobject+0x183/0x3f0 [ 2189.550417][T24982] register_netdevice+0xbdf/0x14a0 [ 2189.555583][T24982] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2189.561549][T24982] veth_newlink+0x4ef/0xa00 [ 2189.566122][T24982] ? veth_set_features+0x2d0/0x2d0 [ 2189.571285][T24982] ? rtnl_create_link+0xc9c/0xfd0 [ 2189.576361][T24982] ? __rtnl_newlink+0x108a/0x1930 [ 2189.581512][T24982] ? rtnl_newlink+0x67/0xa0 [ 2189.586126][T24982] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2189.592165][T24982] ? alloc_netdev_mqs+0xee6/0x1290 [ 2189.597341][T24982] ? rtnl_create_link+0xa6d/0xfd0 [ 2189.602610][T24982] ? veth_set_features+0x2d0/0x2d0 [ 2189.608136][T24982] __rtnl_newlink+0x1173/0x1930 [ 2189.613134][T24982] ? rtnl_link_unregister+0x260/0x260 [ 2189.618594][T24982] rtnl_newlink+0x67/0xa0 [ 2189.622963][T24982] ? __rtnl_newlink+0x1930/0x1930 [ 2189.628031][T24982] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2189.633014][T24982] ? rtnl_getlink+0xb40/0xb40 [ 2189.637739][T24982] netlink_rcv_skb+0x16b/0x440 [ 2189.642564][T24982] ? rtnl_getlink+0xb40/0xb40 [ 2189.647283][T24982] ? netlink_ack+0x1370/0x1370 [ 2189.652117][T24982] ? netlink_deliver_tap+0x1a0/0xd00 [ 2189.657460][T24982] netlink_unicast+0x53b/0x810 [ 2189.662281][T24982] ? netlink_attachskb+0x880/0x880 [ 2189.667432][T24982] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2189.673459][T24982] ? __phys_addr_symbol+0x30/0x70 [ 2189.678701][T24982] ? __check_object_size+0x323/0x730 [ 2189.684318][T24982] netlink_sendmsg+0x93c/0xe40 [ 2189.689140][T24982] ? netlink_unicast+0x810/0x810 [ 2189.694131][T24982] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2189.699454][T24982] ? netlink_unicast+0x810/0x810 [ 2189.704435][T24982] __sock_sendmsg+0xd5/0x180 [ 2189.709147][T24982] ____sys_sendmsg+0x6ac/0x940 [ 2189.713947][T24982] ? copy_msghdr_from_user+0x10b/0x160 [ 2189.719447][T24982] ? kernel_sendmsg+0x50/0x50 [ 2189.724177][T24982] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2189.730218][T24982] ___sys_sendmsg+0x135/0x1d0 [ 2189.735375][T24982] ? do_recvmmsg+0x740/0x740 [ 2189.740003][T24982] ? find_held_lock+0x2d/0x110 [ 2189.744846][T24982] ? __fget_light+0xe6/0x260 [ 2189.749589][T24982] __sys_sendmsg+0x117/0x1e0 [ 2189.754223][T24982] ? __sys_sendmsg_sock+0x30/0x30 [ 2189.759499][T24982] ? xfd_validate_state+0x5d/0x180 [ 2189.764695][T24982] ? syscall_enter_from_user_mode+0x26/0x80 [ 2189.770639][T24982] do_syscall_64+0x3f/0x110 [ 2189.775302][T24982] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2189.781938][T24982] RIP: 0033:0x7f70d3c7cae9 [ 2189.786387][T24982] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2189.806663][T24982] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2189.815202][T24982] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2189.823254][T24982] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2189.831267][T24982] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2189.839281][T24982] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2189.847280][T24982] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2189.855403][T24982] 22:27:19 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000102a200"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:19 executing program 5: pipe(&(0x7f0000000280)={0xffffffffffffffff}) accept4$ax25(r0, 0x0, 0x0, 0x400) 22:27:19 executing program 2: r0 = socket$nl_xfrm(0x10, 0x3, 0x6) sendmsg$nl_xfrm(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=@newsa={0xf0, 0x10, 0x1, 0x0, 0x0, {{@in=@remote, @in6=@loopback}, {@in6=@initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @in=@broadcast, {}, {}, {}, 0x0, 0x0, 0x2}}, 0xf0}}, 0x0) 22:27:19 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x3fffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:19 executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) bind$inet6(r0, &(0x7f0000000100)={0xa, 0x4e22}, 0x1c) listen(r0, 0x0) setsockopt$inet6_tcp_TCP_MD5SIG(r0, 0x6, 0xe, &(0x7f0000000440)={@in6={{0xa, 0x0, 0x0, @remote}}, 0x0, 0x0, 0x48, 0x0, "392c346a371805f8613d6d8cdefe47fa6eee8f7820d7961f0ab34da4594eb290f47a12e4e3d8f21d7318263621a8c7f18b8a01e3b2d140667468bd026b6bafd51034ec55f373d84ce68eabfc731c4412"}, 0xd8) syz_emit_ethernet(0x4a, &(0x7f0000000000)={@local, @remote, @void, {@ipv6={0x86dd, @tcp={0x0, 0x6, '\x00', 0x14, 0x6, 0x0, @remote, @local, {[], {{0x0, 0x4e22, 0x41424344, 0x41424344, 0x0, 0x0, 0x5, 0x7}}}}}}}, 0x0) [ 2189.884548][T24982] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2189.911625][T24985] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2189.921411][T24984] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:27:20 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x700, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:20 executing program 5: r0 = socket$inet6_mptcp(0xa, 0x1, 0x106) setsockopt$inet6_tcp_TLS_TX(r0, 0x6, 0x1, &(0x7f0000000000)=@gcm_128={{}, "019fc35bd1ff5cec", "07986e41cb2298358a6b7f3ecf473157", "e79c8bb9", "7f0d76806a6347ea"}, 0x28) 22:27:20 executing program 2: bpf$MAP_CREATE_TAIL_CALL(0xd, &(0x7f0000002840), 0x48) 22:27:20 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x40000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2190.037389][T25002] MD5 Hash not found for [fe80::bb].0->[fe80::aa].20002 [FSR]L3 index 0 22:27:20 executing program 0: bpf$MAP_CREATE(0x0, &(0x7f0000000100)=@bloom_filter={0x1e, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x1, 0x4}, 0x48) [ 2190.097826][T25004] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2190.137179][T25004] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2190.179679][T25004] CPU: 0 PID: 25004 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2190.189825][T25004] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2190.200005][T25004] Call Trace: [ 2190.203297][T25004] [ 2190.206257][T25004] dump_stack_lvl+0x125/0x1b0 [ 2190.211218][T25004] sysfs_warn_dup+0x7f/0xa0 [ 2190.215771][T25004] sysfs_create_dir_ns+0x247/0x2a0 [ 2190.220992][T25004] ? sysfs_create_mount_point+0xb0/0xb0 [ 2190.226667][T25004] ? spin_bug+0x1d0/0x1d0 [ 2190.231035][T25004] ? net_namespace+0x12/0x40 [ 2190.236075][T25004] ? device_namespace+0x8d/0xc0 [ 2190.240954][T25004] kobject_add_internal+0x2c8/0x960 [ 2190.246191][T25004] kobject_add+0x16f/0x240 [ 2190.250673][T25004] ? kset_create_and_add+0x190/0x190 [ 2190.255986][T25004] ? do_raw_spin_unlock+0x173/0x230 [ 2190.261213][T25004] ? kobject_put+0xbe/0x440 [ 2190.265762][T25004] device_add+0x289/0x1aa0 [ 2190.270200][T25004] ? device_initialize+0x510/0x510 [ 2190.275449][T25004] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2190.282409][T25004] ? __init_waitqueue_head+0xca/0x150 [ 2190.287810][T25004] netdev_register_kobject+0x183/0x3f0 [ 2190.293309][T25004] register_netdevice+0xbdf/0x14a0 [ 2190.298441][T25004] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2190.304350][T25004] ? validate_linkmsg+0x6fc/0x9c0 [ 2190.309419][T25004] br_dev_newlink+0x27/0x110 [ 2190.314048][T25004] ? br_changelink+0x1760/0x1760 [ 2190.319094][T25004] __rtnl_newlink+0x1173/0x1930 [ 2190.324233][T25004] ? rtnl_link_unregister+0x260/0x260 [ 2190.329662][T25004] rtnl_newlink+0x67/0xa0 [ 2190.334004][T25004] ? __rtnl_newlink+0x1930/0x1930 [ 2190.339130][T25004] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2190.344084][T25004] ? rtnl_getlink+0xb40/0xb40 [ 2190.348800][T25004] netlink_rcv_skb+0x16b/0x440 [ 2190.353587][T25004] ? rtnl_getlink+0xb40/0xb40 [ 2190.358278][T25004] ? netlink_ack+0x1370/0x1370 [ 2190.363176][T25004] ? netlink_deliver_tap+0x1a0/0xd00 [ 2190.368500][T25004] netlink_unicast+0x53b/0x810 [ 2190.373290][T25004] ? netlink_attachskb+0x880/0x880 [ 2190.378512][T25004] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2190.384440][T25004] ? __phys_addr_symbol+0x30/0x70 [ 2190.393130][T25004] ? __check_object_size+0x323/0x730 [ 2190.398545][T25004] netlink_sendmsg+0x93c/0xe40 [ 2190.403511][T25004] ? netlink_unicast+0x810/0x810 [ 2190.409278][T25004] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2190.414848][T25004] ? netlink_unicast+0x810/0x810 [ 2190.419980][T25004] __sock_sendmsg+0xd5/0x180 [ 2190.424590][T25004] ____sys_sendmsg+0x6ac/0x940 [ 2190.429370][T25004] ? copy_msghdr_from_user+0x10b/0x160 [ 2190.434850][T25004] ? kernel_sendmsg+0x50/0x50 [ 2190.439547][T25004] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2190.445647][T25004] ___sys_sendmsg+0x135/0x1d0 [ 2190.450343][T25004] ? do_recvmmsg+0x740/0x740 [ 2190.454949][T25004] ? find_held_lock+0x2d/0x110 [ 2190.459765][T25004] ? __fget_light+0xe6/0x260 [ 2190.464388][T25004] __sys_sendmsg+0x117/0x1e0 [ 2190.469075][T25004] ? __sys_sendmsg_sock+0x30/0x30 [ 2190.474117][T25004] ? xfd_validate_state+0x5d/0x180 [ 2190.479278][T25004] ? syscall_enter_from_user_mode+0x26/0x80 [ 2190.485367][T25004] do_syscall_64+0x3f/0x110 [ 2190.489894][T25004] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2190.496703][T25004] RIP: 0033:0x7f874a47cae9 [ 2190.501458][T25004] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2190.521601][T25004] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2190.530028][T25004] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2190.538013][T25004] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2190.545993][T25004] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2190.554059][T25004] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2190.562036][T25004] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2190.570037][T25004] [ 2190.593991][T25004] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:20 executing program 5: bpf$MAP_CREATE_TAIL_CALL(0x0, &(0x7f0000000040)={0x3, 0x4, 0x4, 0xa, 0x0, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x4}, 0x48) [ 2190.694778][T25011] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:27:20 executing program 0: r0 = socket$nl_xfrm(0x10, 0x3, 0x6) sendmsg$nl_xfrm(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=@newsa={0xf0, 0x10, 0x1, 0x0, 0x0, {{@in=@remote, @in6=@loopback, 0x0, 0x0, 0x0, 0x0, 0x2}, {@in6=@initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @in=@broadcast, {}, {}, {}, 0x0, 0x0, 0x2}}, 0xf0}}, 0x0) [ 2190.797748][T25010] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2190.849695][T25010] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2190.859805][T25010] CPU: 0 PID: 25010 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2190.869928][T25010] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2190.880022][T25010] Call Trace: [ 2190.883339][T25010] [ 2190.886293][T25010] dump_stack_lvl+0x125/0x1b0 [ 2190.891021][T25010] sysfs_warn_dup+0x7f/0xa0 [ 2190.895605][T25010] sysfs_create_dir_ns+0x247/0x2a0 [ 2190.900772][T25010] ? sysfs_create_mount_point+0xb0/0xb0 [ 2190.906427][T25010] ? spin_bug+0x1d0/0x1d0 [ 2190.910840][T25010] ? net_namespace+0x12/0x40 [ 2190.915567][T25010] ? device_namespace+0x8d/0xc0 [ 2190.920572][T25010] kobject_add_internal+0x2c8/0x960 [ 2190.925837][T25010] kobject_add+0x16f/0x240 [ 2190.930308][T25010] ? kset_create_and_add+0x190/0x190 [ 2190.935644][T25010] ? kobject_put+0xbe/0x440 [ 2190.940202][T25010] device_add+0x289/0x1aa0 [ 2190.944665][T25010] ? device_initialize+0x510/0x510 [ 2190.949925][T25010] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2190.956830][T25010] ? __init_waitqueue_head+0xca/0x150 [ 2190.962260][T25010] netdev_register_kobject+0x183/0x3f0 [ 2190.967774][T25010] register_netdevice+0xbdf/0x14a0 [ 2190.973232][T25010] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2190.979280][T25010] veth_newlink+0x4ef/0xa00 [ 2190.983861][T25010] ? veth_set_features+0x2d0/0x2d0 [ 2190.989140][T25010] ? rtnl_create_link+0xc9c/0xfd0 [ 2190.995200][T25010] ? __rtnl_newlink+0x108a/0x1930 22:27:21 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000103a200"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:21 executing program 2: bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f000000c740)={0x2, 0x4, 0x8, 0x1, 0x80, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x2}, 0x48) 22:27:21 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x50000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:21 executing program 5: syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff) [ 2191.000269][T25010] ? rtnl_newlink+0x67/0xa0 [ 2191.004887][T25010] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2191.010158][T25010] ? alloc_netdev_mqs+0xee6/0x1290 [ 2191.015334][T25010] ? rtnl_create_link+0xa6d/0xfd0 [ 2191.020431][T25010] ? veth_set_features+0x2d0/0x2d0 [ 2191.025609][T25010] __rtnl_newlink+0x1173/0x1930 [ 2191.030529][T25010] ? rtnl_link_unregister+0x260/0x260 [ 2191.036345][T25010] rtnl_newlink+0x67/0xa0 [ 2191.040731][T25010] ? __rtnl_newlink+0x1930/0x1930 [ 2191.045897][T25010] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2191.050886][T25010] ? rtnl_getlink+0xb40/0xb40 [ 2191.055644][T25010] netlink_rcv_skb+0x16b/0x440 [ 2191.060458][T25010] ? rtnl_getlink+0xb40/0xb40 [ 2191.065182][T25010] ? netlink_ack+0x1370/0x1370 [ 2191.070025][T25010] ? netlink_deliver_tap+0x1a0/0xd00 [ 2191.075368][T25010] netlink_unicast+0x53b/0x810 [ 2191.080192][T25010] ? netlink_attachskb+0x880/0x880 [ 2191.085404][T25010] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2191.091611][T25010] ? __phys_addr_symbol+0x30/0x70 22:27:21 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x50030000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2191.096694][T25010] ? __check_object_size+0x323/0x730 [ 2191.102049][T25010] netlink_sendmsg+0x93c/0xe40 [ 2191.106969][T25010] ? netlink_unicast+0x810/0x810 [ 2191.111972][T25010] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2191.117307][T25010] ? netlink_unicast+0x810/0x810 [ 2191.122307][T25010] __sock_sendmsg+0xd5/0x180 [ 2191.127036][T25010] ____sys_sendmsg+0x6ac/0x940 [ 2191.132194][T25010] ? copy_msghdr_from_user+0x10b/0x160 [ 2191.137714][T25010] ? kernel_sendmsg+0x50/0x50 [ 2191.142730][T25010] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2191.148877][T25010] ___sys_sendmsg+0x135/0x1d0 [ 2191.153612][T25010] ? do_recvmmsg+0x740/0x740 [ 2191.158257][T25010] ? find_held_lock+0x2d/0x110 [ 2191.163111][T25010] ? __fget_light+0xe6/0x260 [ 2191.167754][T25010] __sys_sendmsg+0x117/0x1e0 [ 2191.172396][T25010] ? __sys_sendmsg_sock+0x30/0x30 [ 2191.177466][T25010] ? xfd_validate_state+0x5d/0x180 [ 2191.182661][T25010] ? syscall_enter_from_user_mode+0x26/0x80 [ 2191.188962][T25010] do_syscall_64+0x3f/0x110 [ 2191.193534][T25010] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2191.200556][T25010] RIP: 0033:0x7f70d3c7cae9 [ 2191.205287][T25010] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2191.224944][T25010] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2191.233494][T25010] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2191.241511][T25010] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2191.249518][T25010] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2191.257527][T25010] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2191.265543][T25010] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2191.273581][T25010] [ 2191.330380][T25010] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:21 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x900, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:21 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x5c030000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:21 executing program 5: socket$inet_smc(0x2b, 0x1, 0x0) pselect6(0x40, &(0x7f0000000740), &(0x7f0000000780)={0x6}, 0x0, 0x0, 0x0) 22:27:21 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0x0) getsockopt$inet_sctp_SCTP_GET_LOCAL_ADDRS(r0, 0x84, 0x6d, &(0x7f0000000100), &(0x7f00000001c0)=0x8) 22:27:21 executing program 0: openat$cgroup_freezer_state(0xffffffffffffffff, &(0x7f0000002140), 0x2, 0x0) 22:27:21 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000100a300"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:21 executing program 0: pselect6(0x40, &(0x7f0000000740), &(0x7f0000000780)={0x6}, 0x0, 0x0, &(0x7f00000008c0)={&(0x7f0000000880)={[0x10000]}, 0x8}) 22:27:21 executing program 5: r0 = socket$pppl2tp(0x18, 0x1, 0x1) connect$pppl2tp(r0, &(0x7f0000000000)=@pppol2tp={0x18, 0x1, {0x0, 0xffffffffffffffff, {0x2, 0x0, @loopback}, 0x3, 0x2}}, 0x26) 22:27:21 executing program 2: r0 = socket$packet(0x11, 0x3, 0x300) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r0, 0x8933, &(0x7f00000000c0)={'batadv_slave_0\x00', 0x0}) bpf$PROG_LOAD_XDP(0x5, &(0x7f00000002c0)={0x6, 0x2, &(0x7f0000000180)=@raw=[@btf_id], &(0x7f0000000080)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x20, '\x00', r1}, 0x90) 22:27:21 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x60000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2191.615440][T25051] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2191.654902][T25051] CPU: 1 PID: 25051 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2191.665133][T25051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2191.675327][T25051] Call Trace: [ 2191.678637][T25051] [ 2191.681607][T25051] dump_stack_lvl+0x125/0x1b0 [ 2191.686457][T25051] sysfs_warn_dup+0x7f/0xa0 [ 2191.691036][T25051] sysfs_create_dir_ns+0x247/0x2a0 [ 2191.698040][T25051] ? sysfs_create_mount_point+0xb0/0xb0 [ 2191.703828][T25051] ? spin_bug+0x1d0/0x1d0 [ 2191.708224][T25051] ? net_namespace+0x12/0x40 [ 2191.712859][T25051] ? device_namespace+0x8d/0xc0 [ 2191.717774][T25051] kobject_add_internal+0x2c8/0x960 [ 2191.723040][T25051] kobject_add+0x16f/0x240 [ 2191.727518][T25051] ? kset_create_and_add+0x190/0x190 [ 2191.732958][T25051] ? do_raw_spin_unlock+0x173/0x230 [ 2191.738229][T25051] ? kobject_put+0xbe/0x440 [ 2191.742805][T25051] device_add+0x289/0x1aa0 [ 2191.747284][T25051] ? device_initialize+0x510/0x510 [ 2191.752469][T25051] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2191.759398][T25051] ? __init_waitqueue_head+0xca/0x150 [ 2191.764926][T25051] netdev_register_kobject+0x183/0x3f0 [ 2191.770455][T25051] register_netdevice+0xbdf/0x14a0 [ 2191.775627][T25051] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2191.781601][T25051] veth_newlink+0x4ef/0xa00 [ 2191.786520][T25051] ? veth_set_features+0x2d0/0x2d0 [ 2191.791886][T25051] ? rtnl_create_link+0xc9c/0xfd0 [ 2191.796967][T25051] ? __rtnl_newlink+0x108a/0x1930 [ 2191.802059][T25051] ? rtnl_newlink+0x67/0xa0 [ 2191.806664][T25051] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2191.812028][T25051] ? alloc_netdev_mqs+0xee6/0x1290 [ 2191.817570][T25051] ? rtnl_create_link+0xa6d/0xfd0 [ 2191.822656][T25051] ? veth_set_features+0x2d0/0x2d0 [ 2191.827984][T25051] __rtnl_newlink+0x1173/0x1930 [ 2191.832895][T25051] ? rtnl_link_unregister+0x260/0x260 [ 2191.838351][T25051] rtnl_newlink+0x67/0xa0 [ 2191.842733][T25051] ? __rtnl_newlink+0x1930/0x1930 [ 2191.847805][T25051] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2191.852796][T25051] ? rtnl_getlink+0xb40/0xb40 [ 2191.857513][T25051] ? find_held_lock+0x2d/0x110 [ 2191.862330][T25051] ? rcu_preempt_deferred_qs_irqrestore+0x684/0xdb0 [ 2191.868977][T25051] ? reacquire_held_locks+0x4b0/0x4b0 [ 2191.874422][T25051] netlink_rcv_skb+0x16b/0x440 [ 2191.879338][T25051] ? rtnl_getlink+0xb40/0xb40 [ 2191.884068][T25051] ? netlink_ack+0x1370/0x1370 [ 2191.888894][T25051] ? _raw_spin_unlock_irqrestore+0x3b/0x70 [ 2191.894948][T25051] ? __rcu_read_unlock+0x2ad/0x570 [ 2191.900110][T25051] ? netlink_deliver_tap+0x1a0/0xd00 [ 2191.905539][T25051] netlink_unicast+0x53b/0x810 [ 2191.910359][T25051] ? netlink_attachskb+0x880/0x880 [ 2191.915515][T25051] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2191.921458][T25051] ? __phys_addr_symbol+0x30/0x70 [ 2191.926587][T25051] ? __check_object_size+0x323/0x730 [ 2191.932023][T25051] netlink_sendmsg+0x93c/0xe40 [ 2191.936849][T25051] ? netlink_unicast+0x810/0x810 [ 2191.941848][T25051] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2191.947446][T25051] ? netlink_unicast+0x810/0x810 [ 2191.952439][T25051] __sock_sendmsg+0xd5/0x180 [ 2191.957073][T25051] ____sys_sendmsg+0x6ac/0x940 22:27:21 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x61000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:21 executing program 5: socket(0xa, 0x5, 0x9) [ 2191.961884][T25051] ? copy_msghdr_from_user+0x10b/0x160 [ 2191.967394][T25051] ? kernel_sendmsg+0x50/0x50 [ 2191.972134][T25051] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2191.978215][T25051] ___sys_sendmsg+0x135/0x1d0 [ 2191.982968][T25051] ? do_recvmmsg+0x740/0x740 [ 2191.987704][T25051] ? find_held_lock+0x2d/0x110 [ 2191.992565][T25051] ? __fget_light+0xe6/0x260 [ 2191.997315][T25051] __sys_sendmsg+0x117/0x1e0 [ 2192.001968][T25051] ? __sys_sendmsg_sock+0x30/0x30 [ 2192.007042][T25051] ? xfd_validate_state+0x5d/0x180 [ 2192.012237][T25051] ? syscall_enter_from_user_mode+0x26/0x80 [ 2192.018181][T25051] do_syscall_64+0x3f/0x110 [ 2192.022740][T25051] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2192.028796][T25051] RIP: 0033:0x7f70d3c7cae9 [ 2192.033316][T25051] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2192.052967][T25051] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2192.061420][T25051] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2192.069429][T25051] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2192.077441][T25051] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2192.085530][T25051] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2192.093537][T25051] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2192.101557][T25051] [ 2192.117584][T25051] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2192.260986][T25056] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2192.270736][T25056] CPU: 0 PID: 25056 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2192.280945][T25056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2192.291042][T25056] Call Trace: [ 2192.294361][T25056] [ 2192.297331][T25056] dump_stack_lvl+0x125/0x1b0 [ 2192.302072][T25056] sysfs_warn_dup+0x7f/0xa0 [ 2192.306638][T25056] sysfs_create_dir_ns+0x247/0x2a0 [ 2192.311824][T25056] ? sysfs_create_mount_point+0xb0/0xb0 [ 2192.317433][T25056] ? spin_bug+0x1d0/0x1d0 [ 2192.321852][T25056] ? net_namespace+0x12/0x40 [ 2192.326478][T25056] ? device_namespace+0x8d/0xc0 [ 2192.331393][T25056] kobject_add_internal+0x2c8/0x960 [ 2192.336759][T25056] kobject_add+0x16f/0x240 [ 2192.341233][T25056] ? kset_create_and_add+0x190/0x190 [ 2192.346574][T25056] ? do_raw_spin_unlock+0x173/0x230 [ 2192.351832][T25056] ? kobject_put+0xbe/0x440 [ 2192.356404][T25056] device_add+0x289/0x1aa0 [ 2192.360865][T25056] ? device_initialize+0x510/0x510 [ 2192.366035][T25056] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2192.372945][T25056] ? __init_waitqueue_head+0xca/0x150 [ 2192.378375][T25056] netdev_register_kobject+0x183/0x3f0 [ 2192.383890][T25056] register_netdevice+0xbdf/0x14a0 [ 2192.389060][T25056] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2192.395085][T25056] ? validate_linkmsg+0x6fc/0x9c0 [ 2192.400181][T25056] br_dev_newlink+0x27/0x110 [ 2192.405062][T25056] ? br_changelink+0x1760/0x1760 [ 2192.410061][T25056] __rtnl_newlink+0x1173/0x1930 [ 2192.414977][T25056] ? rtnl_link_unregister+0x260/0x260 [ 2192.420429][T25056] rtnl_newlink+0x67/0xa0 [ 2192.424798][T25056] ? __rtnl_newlink+0x1930/0x1930 [ 2192.429860][T25056] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2192.434844][T25056] ? rtnl_getlink+0xb40/0xb40 [ 2192.439579][T25056] netlink_rcv_skb+0x16b/0x440 [ 2192.444477][T25056] ? rtnl_getlink+0xb40/0xb40 [ 2192.449193][T25056] ? netlink_ack+0x1370/0x1370 [ 2192.454031][T25056] ? netlink_deliver_tap+0x1a0/0xd00 [ 2192.459368][T25056] netlink_unicast+0x53b/0x810 [ 2192.464179][T25056] ? netlink_attachskb+0x880/0x880 [ 2192.469329][T25056] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2192.475437][T25056] ? __phys_addr_symbol+0x30/0x70 [ 2192.480506][T25056] ? __check_object_size+0x323/0x730 [ 2192.485865][T25056] netlink_sendmsg+0x93c/0xe40 [ 2192.490688][T25056] ? netlink_unicast+0x810/0x810 [ 2192.495686][T25056] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2192.501098][T25056] ? netlink_unicast+0x810/0x810 [ 2192.506175][T25056] __sock_sendmsg+0xd5/0x180 [ 2192.510911][T25056] ____sys_sendmsg+0x6ac/0x940 [ 2192.515716][T25056] ? copy_msghdr_from_user+0x10b/0x160 [ 2192.521309][T25056] ? kernel_sendmsg+0x50/0x50 [ 2192.526035][T25056] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2192.532083][T25056] ___sys_sendmsg+0x135/0x1d0 [ 2192.536826][T25056] ? do_recvmmsg+0x740/0x740 [ 2192.541463][T25056] ? find_held_lock+0x2d/0x110 [ 2192.546331][T25056] ? __fget_light+0xe6/0x260 [ 2192.551067][T25056] __sys_sendmsg+0x117/0x1e0 [ 2192.555710][T25056] ? __sys_sendmsg_sock+0x30/0x30 [ 2192.560772][T25056] ? xfd_validate_state+0x5d/0x180 [ 2192.565961][T25056] ? syscall_enter_from_user_mode+0x26/0x80 [ 2192.571906][T25056] do_syscall_64+0x3f/0x110 [ 2192.576463][T25056] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2192.582401][T25056] RIP: 0033:0x7f874a47cae9 [ 2192.586857][T25056] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2192.606862][T25056] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2192.615404][T25056] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2192.623412][T25056] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2192.631412][T25056] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2192.639423][T25056] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2192.647432][T25056] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2192.655467][T25056] [ 2192.689461][T25056] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:22 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0xa00, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:22 executing program 2: bpf$PROG_LOAD(0x21, &(0x7f0000001280)={0x0, 0x0, 0x0, 0x0}, 0x90) 22:27:22 executing program 0: r0 = socket(0x18, 0x0, 0x0) syz_genetlink_get_family_id$batadv(&(0x7f0000000140), r0) 22:27:22 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x62000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:22 executing program 5: select(0x40, &(0x7f0000000000), &(0x7f0000000040)={0xffffffffffffffff}, &(0x7f0000000080), &(0x7f0000000100)) 22:27:22 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000101a300"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:22 executing program 2: select(0x40, &(0x7f00000004c0)={0x1}, 0x0, 0x0, 0x0) 22:27:22 executing program 5: socket$packet(0x2, 0x0, 0x300) 22:27:22 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x63000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2192.915634][T25088] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2192.954163][T25088] CPU: 0 PID: 25088 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 22:27:22 executing program 0: select(0x40, &(0x7f00000004c0)={0x1}, &(0x7f0000000500)={0x4}, 0x0, &(0x7f0000000580)) [ 2192.964304][T25088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2192.974509][T25088] Call Trace: [ 2192.977925][T25088] [ 2192.980980][T25088] dump_stack_lvl+0x125/0x1b0 [ 2192.985727][T25088] sysfs_warn_dup+0x7f/0xa0 [ 2192.990306][T25088] sysfs_create_dir_ns+0x247/0x2a0 [ 2192.995489][T25088] ? sysfs_create_mount_point+0xb0/0xb0 [ 2193.001111][T25088] ? spin_bug+0x1d0/0x1d0 [ 2193.005505][T25088] ? net_namespace+0x12/0x40 [ 2193.010240][T25088] ? device_namespace+0x8d/0xc0 [ 2193.015163][T25088] kobject_add_internal+0x2c8/0x960 [ 2193.020429][T25088] kobject_add+0x16f/0x240 [ 2193.025001][T25088] ? kset_create_and_add+0x190/0x190 [ 2193.030393][T25088] ? do_raw_spin_unlock+0x173/0x230 [ 2193.035649][T25088] ? kobject_put+0xbe/0x440 [ 2193.040220][T25088] device_add+0x289/0x1aa0 [ 2193.044682][T25088] ? device_initialize+0x510/0x510 [ 2193.049854][T25088] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2193.056761][T25088] ? __init_waitqueue_head+0xca/0x150 [ 2193.062193][T25088] netdev_register_kobject+0x183/0x3f0 22:27:23 executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_MSG_GETSET(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000002c0)=ANY=[], 0x40}}, 0x0) [ 2193.067816][T25088] register_netdevice+0xbdf/0x14a0 [ 2193.072984][T25088] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2193.078962][T25088] veth_newlink+0x4ef/0xa00 [ 2193.083528][T25088] ? veth_set_features+0x2d0/0x2d0 [ 2193.088701][T25088] ? rtnl_create_link+0xc9c/0xfd0 [ 2193.094227][T25088] ? __rtnl_newlink+0x108a/0x1930 [ 2193.099939][T25088] ? rtnl_newlink+0x67/0xa0 [ 2193.104582][T25088] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2193.110026][T25088] ? alloc_netdev_mqs+0xee6/0x1290 [ 2193.115211][T25088] ? rtnl_create_link+0xa6d/0xfd0 [ 2193.120601][T25088] ? veth_set_features+0x2d0/0x2d0 [ 2193.125764][T25088] __rtnl_newlink+0x1173/0x1930 [ 2193.130683][T25088] ? rtnl_link_unregister+0x260/0x260 [ 2193.136144][T25088] rtnl_newlink+0x67/0xa0 [ 2193.140520][T25088] ? __rtnl_newlink+0x1930/0x1930 [ 2193.145676][T25088] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2193.150661][T25088] ? rtnl_getlink+0xb40/0xb40 [ 2193.155401][T25088] netlink_rcv_skb+0x16b/0x440 [ 2193.160210][T25088] ? rtnl_getlink+0xb40/0xb40 [ 2193.164928][T25088] ? netlink_ack+0x1370/0x1370 [ 2193.169762][T25088] ? netlink_deliver_tap+0x1a0/0xd00 [ 2193.175121][T25088] netlink_unicast+0x53b/0x810 [ 2193.179942][T25088] ? netlink_attachskb+0x880/0x880 [ 2193.185102][T25088] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2193.191055][T25088] ? __phys_addr_symbol+0x30/0x70 [ 2193.196226][T25088] ? __check_object_size+0x323/0x730 [ 2193.201576][T25088] netlink_sendmsg+0x93c/0xe40 [ 2193.206397][T25088] ? netlink_unicast+0x810/0x810 [ 2193.211486][T25088] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2193.216824][T25088] ? netlink_unicast+0x810/0x810 [ 2193.222506][T25088] __sock_sendmsg+0xd5/0x180 [ 2193.227311][T25088] ____sys_sendmsg+0x6ac/0x940 [ 2193.232171][T25088] ? copy_msghdr_from_user+0x10b/0x160 [ 2193.237691][T25088] ? kernel_sendmsg+0x50/0x50 [ 2193.242526][T25088] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2193.253101][T25088] ___sys_sendmsg+0x135/0x1d0 [ 2193.257851][T25088] ? do_recvmmsg+0x740/0x740 [ 2193.262580][T25088] ? find_held_lock+0x2d/0x110 [ 2193.267433][T25088] ? __fget_light+0xe6/0x260 [ 2193.272079][T25088] __sys_sendmsg+0x117/0x1e0 [ 2193.276733][T25088] ? __sys_sendmsg_sock+0x30/0x30 [ 2193.281819][T25088] ? xfd_validate_state+0x5d/0x180 [ 2193.287035][T25088] ? syscall_enter_from_user_mode+0x26/0x80 [ 2193.292981][T25088] do_syscall_64+0x3f/0x110 [ 2193.297546][T25088] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2193.303485][T25088] RIP: 0033:0x7f70d3c7cae9 [ 2193.307929][T25088] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2193.327937][T25088] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2193.336411][T25088] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2193.344604][T25088] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2193.352624][T25088] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2193.360725][T25088] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2193.368740][T25088] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2193.376777][T25088] 22:27:23 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x69000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2193.465000][T25088] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2193.581823][T25090] __nla_validate_parse: 7 callbacks suppressed [ 2193.581843][T25090] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2193.609701][T25102] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2193.621499][T25102] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2193.633450][T25102] CPU: 1 PID: 25102 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2193.643570][T25102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2193.653740][T25102] Call Trace: [ 2193.657041][T25102] [ 2193.660000][T25102] dump_stack_lvl+0x125/0x1b0 [ 2193.664730][T25102] sysfs_warn_dup+0x7f/0xa0 [ 2193.669298][T25102] sysfs_create_dir_ns+0x247/0x2a0 [ 2193.674471][T25102] ? sysfs_create_mount_point+0xb0/0xb0 [ 2193.680094][T25102] ? spin_bug+0x1d0/0x1d0 [ 2193.684738][T25102] ? net_namespace+0x12/0x40 [ 2193.689455][T25102] ? device_namespace+0x8d/0xc0 [ 2193.694371][T25102] kobject_add_internal+0x2c8/0x960 [ 2193.700012][T25102] kobject_add+0x16f/0x240 [ 2193.704488][T25102] ? kset_create_and_add+0x190/0x190 [ 2193.709841][T25102] ? do_raw_spin_unlock+0x173/0x230 [ 2193.715191][T25102] ? kobject_put+0xbe/0x440 [ 2193.719757][T25102] device_add+0x289/0x1aa0 [ 2193.724302][T25102] ? device_initialize+0x510/0x510 [ 2193.729487][T25102] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2193.736402][T25102] ? __init_waitqueue_head+0xca/0x150 [ 2193.741849][T25102] netdev_register_kobject+0x183/0x3f0 [ 2193.747373][T25102] register_netdevice+0xbdf/0x14a0 [ 2193.752535][T25102] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2193.758482][T25102] ? validate_linkmsg+0x6fc/0x9c0 [ 2193.763581][T25102] br_dev_newlink+0x27/0x110 [ 2193.768233][T25102] ? br_changelink+0x1760/0x1760 [ 2193.773227][T25102] __rtnl_newlink+0x1173/0x1930 [ 2193.778410][T25102] ? rtnl_link_unregister+0x260/0x260 [ 2193.783863][T25102] rtnl_newlink+0x67/0xa0 [ 2193.788229][T25102] ? __rtnl_newlink+0x1930/0x1930 [ 2193.793300][T25102] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2193.798365][T25102] ? rtnl_getlink+0xb40/0xb40 [ 2193.803093][T25102] netlink_rcv_skb+0x16b/0x440 [ 2193.807917][T25102] ? rtnl_getlink+0xb40/0xb40 [ 2193.812633][T25102] ? netlink_ack+0x1370/0x1370 [ 2193.817565][T25102] ? netlink_deliver_tap+0x1a0/0xd00 [ 2193.822931][T25102] netlink_unicast+0x53b/0x810 [ 2193.827759][T25102] ? netlink_attachskb+0x880/0x880 [ 2193.833000][T25102] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2193.838931][T25102] ? __phys_addr_symbol+0x30/0x70 [ 2193.844004][T25102] ? __check_object_size+0x323/0x730 [ 2193.849345][T25102] netlink_sendmsg+0x93c/0xe40 [ 2193.854165][T25102] ? netlink_unicast+0x810/0x810 [ 2193.859242][T25102] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2193.864566][T25102] ? netlink_unicast+0x810/0x810 [ 2193.869816][T25102] __sock_sendmsg+0xd5/0x180 [ 2193.874453][T25102] ____sys_sendmsg+0x6ac/0x940 [ 2193.879356][T25102] ? copy_msghdr_from_user+0x10b/0x160 [ 2193.884859][T25102] ? kernel_sendmsg+0x50/0x50 [ 2193.889578][T25102] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2193.895617][T25102] ___sys_sendmsg+0x135/0x1d0 [ 2193.900344][T25102] ? do_recvmmsg+0x740/0x740 [ 2193.904975][T25102] ? find_held_lock+0x2d/0x110 [ 2193.909821][T25102] ? __fget_light+0xe6/0x260 [ 2193.914546][T25102] __sys_sendmsg+0x117/0x1e0 [ 2193.920047][T25102] ? __sys_sendmsg_sock+0x30/0x30 [ 2193.925104][T25102] ? xfd_validate_state+0x5d/0x180 [ 2193.930283][T25102] ? syscall_enter_from_user_mode+0x26/0x80 [ 2193.936304][T25102] do_syscall_64+0x3f/0x110 [ 2193.940875][T25102] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2193.946805][T25102] RIP: 0033:0x7f874a47cae9 [ 2193.951264][T25102] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2193.971101][T25102] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2193.979547][T25102] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2193.987553][T25102] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2193.995555][T25102] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2194.003740][T25102] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2194.011744][T25102] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2194.019943][T25102] [ 2194.036651][T25102] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:24 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0xb00, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:24 executing program 5: r0 = socket(0x18, 0x0, 0x0) setsockopt$pppl2tp_PPPOL2TP_SO_SENDSEQ(r0, 0x111, 0x3, 0x0, 0x4) 22:27:24 executing program 0: bpf$MAP_CREATE(0x0, &(0x7f0000000040)=@bloom_filter={0x1e, 0x0, 0x10001, 0x2}, 0x48) 22:27:24 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x6a000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:24 executing program 2: r0 = socket$rds(0x15, 0x5, 0x0) setsockopt$SO_RDS_TRANSPORT(r0, 0x114, 0x8, &(0x7f00000001c0), 0x4) [ 2194.119449][T25109] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:27:24 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000102a300"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:24 executing program 0: bpf$BPF_MAP_GET_FD_BY_ID(0xe, &(0x7f00000001c0)={0xffffffffffffffff, 0x0, 0x8}, 0xc) 22:27:24 executing program 5: bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000006c0)={0x11, 0x1, &(0x7f0000000440)=@raw=[@alu], &(0x7f00000004c0)='syzkaller\x00', 0x5, 0x1c, &(0x7f0000000500)=""/28}, 0x90) 22:27:24 executing program 2: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_LIST(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)=ANY=[@ANYBLOB="4400000007060104000000000000000000000008160c"], 0x44}}, 0x0) 22:27:24 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x6a020000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2194.314588][T25121] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2194.324293][T25122] netlink: 48 bytes leftover after parsing attributes in process `syz-executor.2'. 22:27:24 executing program 0: bpf$PROG_LOAD(0x11, &(0x7f0000001280)={0x0, 0x0, 0x0, 0x0}, 0x90) 22:27:24 executing program 5: r0 = socket$packet(0x11, 0x3, 0x300) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r0, 0x8933, &(0x7f00000000c0)={'batadv_slave_0\x00'}) [ 2194.419232][T25121] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2194.453430][T25121] CPU: 1 PID: 25121 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2194.465260][T25121] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2194.475626][T25121] Call Trace: [ 2194.479026][T25121] [ 2194.481994][T25121] dump_stack_lvl+0x125/0x1b0 [ 2194.486745][T25121] sysfs_warn_dup+0x7f/0xa0 [ 2194.491323][T25121] sysfs_create_dir_ns+0x247/0x2a0 [ 2194.496850][T25121] ? sysfs_create_mount_point+0xb0/0xb0 [ 2194.502558][T25121] ? spin_bug+0x1d0/0x1d0 [ 2194.506957][T25121] ? net_namespace+0x12/0x40 [ 2194.511592][T25121] ? device_namespace+0x8d/0xc0 [ 2194.516502][T25121] kobject_add_internal+0x2c8/0x960 [ 2194.521748][T25121] kobject_add+0x16f/0x240 [ 2194.526194][T25121] ? kset_create_and_add+0x190/0x190 [ 2194.531776][T25121] ? do_raw_spin_unlock+0x173/0x230 [ 2194.537002][T25121] ? kobject_put+0xbe/0x440 [ 2194.541540][T25121] device_add+0x289/0x1aa0 [ 2194.545975][T25121] ? device_initialize+0x510/0x510 [ 2194.551111][T25121] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2194.557997][T25121] ? __init_waitqueue_head+0xca/0x150 [ 2194.563415][T25121] netdev_register_kobject+0x183/0x3f0 [ 2194.568908][T25121] register_netdevice+0xbdf/0x14a0 [ 2194.574050][T25121] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2194.579970][T25121] veth_newlink+0x4ef/0xa00 [ 2194.584498][T25121] ? veth_set_features+0x2d0/0x2d0 [ 2194.589624][T25121] ? rtnl_create_link+0xc9c/0xfd0 [ 2194.594671][T25121] ? __rtnl_newlink+0x108a/0x1930 [ 2194.599713][T25121] ? rtnl_newlink+0x67/0xa0 [ 2194.604281][T25121] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2194.609503][T25121] ? alloc_netdev_mqs+0xee6/0x1290 [ 2194.614662][T25121] ? rtnl_create_link+0xa6d/0xfd0 [ 2194.619750][T25121] ? veth_set_features+0x2d0/0x2d0 [ 2194.624891][T25121] __rtnl_newlink+0x1173/0x1930 [ 2194.629784][T25121] ? rtnl_link_unregister+0x260/0x260 [ 2194.635218][T25121] rtnl_newlink+0x67/0xa0 [ 2194.639654][T25121] ? __rtnl_newlink+0x1930/0x1930 [ 2194.644691][T25121] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2194.649761][T25121] ? rtnl_getlink+0xb40/0xb40 [ 2194.654478][T25121] netlink_rcv_skb+0x16b/0x440 [ 2194.659276][T25121] ? rtnl_getlink+0xb40/0xb40 [ 2194.664080][T25121] ? netlink_ack+0x1370/0x1370 [ 2194.668988][T25121] ? netlink_deliver_tap+0x1a0/0xd00 [ 2194.674300][T25121] netlink_unicast+0x53b/0x810 [ 2194.679093][T25121] ? netlink_attachskb+0x880/0x880 [ 2194.684219][T25121] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2194.690129][T25121] ? __phys_addr_symbol+0x30/0x70 [ 2194.695168][T25121] ? __check_object_size+0x323/0x730 [ 2194.700575][T25121] netlink_sendmsg+0x93c/0xe40 [ 2194.705367][T25121] ? netlink_unicast+0x810/0x810 [ 2194.710332][T25121] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2194.715631][T25121] ? netlink_unicast+0x810/0x810 [ 2194.720587][T25121] __sock_sendmsg+0xd5/0x180 [ 2194.725190][T25121] ____sys_sendmsg+0x6ac/0x940 [ 2194.730141][T25121] ? copy_msghdr_from_user+0x10b/0x160 [ 2194.735962][T25121] ? kernel_sendmsg+0x50/0x50 [ 2194.740656][T25121] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2194.746667][T25121] ___sys_sendmsg+0x135/0x1d0 [ 2194.751363][T25121] ? do_recvmmsg+0x740/0x740 [ 2194.755969][T25121] ? find_held_lock+0x2d/0x110 [ 2194.760870][T25121] ? __fget_light+0xe6/0x260 [ 2194.765489][T25121] __sys_sendmsg+0x117/0x1e0 [ 2194.770196][T25121] ? __sys_sendmsg_sock+0x30/0x30 [ 2194.775244][T25121] ? xfd_validate_state+0x5d/0x180 [ 2194.780491][T25121] ? syscall_enter_from_user_mode+0x26/0x80 [ 2194.786408][T25121] do_syscall_64+0x3f/0x110 [ 2194.790932][T25121] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2194.796839][T25121] RIP: 0033:0x7f70d3c7cae9 [ 2194.801259][T25121] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2194.821063][T25121] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2194.829573][T25121] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2194.838162][T25121] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2194.846160][T25121] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2194.854138][T25121] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2194.862116][T25121] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2194.870116][T25121] [ 2194.951265][T25121] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2195.022148][T25131] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2195.031939][T25132] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2195.044102][T25132] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2195.058636][T25132] CPU: 0 PID: 25132 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2195.068779][T25132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2195.078959][T25132] Call Trace: [ 2195.082271][T25132] [ 2195.085233][T25132] dump_stack_lvl+0x125/0x1b0 [ 2195.089961][T25132] sysfs_warn_dup+0x7f/0xa0 [ 2195.094521][T25132] sysfs_create_dir_ns+0x247/0x2a0 [ 2195.099743][T25132] ? sysfs_create_mount_point+0xb0/0xb0 [ 2195.105342][T25132] ? spin_bug+0x1d0/0x1d0 [ 2195.109726][T25132] ? net_namespace+0x12/0x40 [ 2195.114523][T25132] ? device_namespace+0x8d/0xc0 [ 2195.119599][T25132] kobject_add_internal+0x2c8/0x960 [ 2195.124948][T25132] kobject_add+0x16f/0x240 [ 2195.129421][T25132] ? kset_create_and_add+0x190/0x190 [ 2195.134780][T25132] ? do_raw_spin_unlock+0x173/0x230 [ 2195.140029][T25132] ? kobject_put+0xbe/0x440 [ 2195.144599][T25132] device_add+0x289/0x1aa0 [ 2195.149052][T25132] ? device_initialize+0x510/0x510 [ 2195.154220][T25132] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2195.161114][T25132] ? __init_waitqueue_head+0xca/0x150 [ 2195.166540][T25132] netdev_register_kobject+0x183/0x3f0 [ 2195.172133][T25132] register_netdevice+0xbdf/0x14a0 [ 2195.177376][T25132] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2195.183320][T25132] ? validate_linkmsg+0x6fc/0x9c0 [ 2195.188419][T25132] br_dev_newlink+0x27/0x110 [ 2195.193231][T25132] ? br_changelink+0x1760/0x1760 [ 2195.198210][T25132] __rtnl_newlink+0x1173/0x1930 [ 2195.203158][T25132] ? rtnl_link_unregister+0x260/0x260 [ 2195.208606][T25132] rtnl_newlink+0x67/0xa0 [ 2195.212974][T25132] ? __rtnl_newlink+0x1930/0x1930 [ 2195.218033][T25132] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2195.223019][T25132] ? rtnl_getlink+0xb40/0xb40 [ 2195.227751][T25132] netlink_rcv_skb+0x16b/0x440 [ 2195.232564][T25132] ? rtnl_getlink+0xb40/0xb40 [ 2195.237280][T25132] ? netlink_ack+0x1370/0x1370 [ 2195.242110][T25132] ? netlink_deliver_tap+0x1a0/0xd00 [ 2195.247442][T25132] netlink_unicast+0x53b/0x810 [ 2195.252260][T25132] ? netlink_attachskb+0x880/0x880 [ 2195.257417][T25132] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2195.263352][T25132] ? __phys_addr_symbol+0x30/0x70 [ 2195.268417][T25132] ? __check_object_size+0x323/0x730 [ 2195.273763][T25132] netlink_sendmsg+0x93c/0xe40 [ 2195.278614][T25132] ? netlink_unicast+0x810/0x810 [ 2195.283779][T25132] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2195.289114][T25132] ? netlink_unicast+0x810/0x810 [ 2195.294091][T25132] __sock_sendmsg+0xd5/0x180 [ 2195.298728][T25132] ____sys_sendmsg+0x6ac/0x940 [ 2195.303551][T25132] ? copy_msghdr_from_user+0x10b/0x160 [ 2195.309054][T25132] ? kernel_sendmsg+0x50/0x50 [ 2195.313776][T25132] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2195.319831][T25132] ___sys_sendmsg+0x135/0x1d0 [ 2195.324558][T25132] ? do_recvmmsg+0x740/0x740 [ 2195.329271][T25132] ? find_held_lock+0x2d/0x110 [ 2195.334126][T25132] ? __fget_light+0xe6/0x260 [ 2195.338855][T25132] __sys_sendmsg+0x117/0x1e0 [ 2195.343601][T25132] ? __sys_sendmsg_sock+0x30/0x30 [ 2195.348915][T25132] ? xfd_validate_state+0x5d/0x180 [ 2195.354092][T25132] ? syscall_enter_from_user_mode+0x26/0x80 [ 2195.360025][T25132] do_syscall_64+0x3f/0x110 [ 2195.364671][T25132] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2195.370773][T25132] RIP: 0033:0x7f874a47cae9 [ 2195.375213][T25132] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2195.394874][T25132] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2195.403377][T25132] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2195.411545][T25132] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2195.419629][T25132] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2195.427661][T25132] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2195.435666][T25132] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2195.443694][T25132] [ 2195.471678][T25132] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:25 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0xc00, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:25 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x6b000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:25 executing program 2: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x2, 0x1) ioctl$sock_SIOCETHTOOL(r0, 0x8946, 0x0) 22:27:25 executing program 5: bpf$MAP_CREATE(0x0, &(0x7f0000000100)=@bloom_filter={0x1e, 0x0, 0x0, 0x0, 0xc4, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x5}, 0x48) 22:27:25 executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_MSG_GETSET(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000002c0)=ANY=[@ANYBLOB="400000000a0a05"], 0x40}}, 0x0) [ 2195.546086][T25139] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:27:25 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000103a300"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:25 executing program 2: r0 = socket$packet(0x11, 0x3, 0x300) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r0, 0x8933, &(0x7f00000000c0)={'batadv_slave_0\x00', 0x0}) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000380)={0x0, 0x5, &(0x7f0000000000)=@raw=[@tail_call], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', r1}, 0x90) 22:27:25 executing program 5: bpf$PROG_LOAD(0x17, 0x0, 0x0) [ 2195.625604][T25146] netlink: 44 bytes leftover after parsing attributes in process `syz-executor.0'. 22:27:25 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x70000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:25 executing program 0: r0 = socket$can_j1939(0x1d, 0x2, 0x7) recvmsg$can_j1939(r0, &(0x7f00000038c0)={0x0, 0x0, 0x0}, 0x0) [ 2195.713007][T25152] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. 22:27:25 executing program 5: r0 = socket$kcm(0x29, 0x5, 0x0) sendmmsg(r0, 0x0, 0x0, 0x0) 22:27:25 executing program 2: socketpair(0x0, 0x0, 0x0, &(0x7f0000002e80)) [ 2195.801651][T25152] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2195.840647][T25152] CPU: 1 PID: 25152 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2195.850781][T25152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2195.860891][T25152] Call Trace: [ 2195.864283][T25152] [ 2195.867671][T25152] dump_stack_lvl+0x125/0x1b0 [ 2195.872400][T25152] sysfs_warn_dup+0x7f/0xa0 [ 2195.876965][T25152] sysfs_create_dir_ns+0x247/0x2a0 [ 2195.882142][T25152] ? sysfs_create_mount_point+0xb0/0xb0 [ 2195.887781][T25152] ? spin_bug+0x1d0/0x1d0 [ 2195.892181][T25152] ? net_namespace+0x12/0x40 [ 2195.896823][T25152] ? device_namespace+0x8d/0xc0 [ 2195.901747][T25152] kobject_add_internal+0x2c8/0x960 [ 2195.907004][T25152] kobject_add+0x16f/0x240 [ 2195.911452][T25152] ? kset_create_and_add+0x190/0x190 [ 2195.916767][T25152] ? do_raw_spin_unlock+0x173/0x230 [ 2195.922005][T25152] ? kobject_put+0xbe/0x440 [ 2195.926543][T25152] device_add+0x289/0x1aa0 [ 2195.930979][T25152] ? device_initialize+0x510/0x510 [ 2195.936120][T25152] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2195.942997][T25152] ? __init_waitqueue_head+0xca/0x150 [ 2195.948407][T25152] netdev_register_kobject+0x183/0x3f0 [ 2195.953900][T25152] register_netdevice+0xbdf/0x14a0 [ 2195.959043][T25152] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2195.964974][T25152] veth_newlink+0x4ef/0xa00 [ 2195.969501][T25152] ? veth_set_features+0x2d0/0x2d0 [ 2195.974642][T25152] ? rtnl_create_link+0xc9c/0xfd0 [ 2195.979711][T25152] ? __rtnl_newlink+0x108a/0x1930 [ 2195.984751][T25152] ? rtnl_newlink+0x67/0xa0 [ 2195.989597][T25152] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2195.994850][T25152] ? alloc_netdev_mqs+0xee6/0x1290 [ 2196.000191][T25152] ? rtnl_create_link+0xa6d/0xfd0 [ 2196.005333][T25152] ? veth_set_features+0x2d0/0x2d0 [ 2196.010462][T25152] __rtnl_newlink+0x1173/0x1930 [ 2196.015435][T25152] ? rtnl_link_unregister+0x260/0x260 [ 2196.021113][T25152] rtnl_newlink+0x67/0xa0 [ 2196.025459][T25152] ? __rtnl_newlink+0x1930/0x1930 [ 2196.030584][T25152] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2196.035543][T25152] ? rtnl_getlink+0xb40/0xb40 [ 2196.040249][T25152] netlink_rcv_skb+0x16b/0x440 [ 2196.045036][T25152] ? rtnl_getlink+0xb40/0xb40 [ 2196.049902][T25152] ? netlink_ack+0x1370/0x1370 [ 2196.054711][T25152] ? netlink_deliver_tap+0x1a0/0xd00 [ 2196.060023][T25152] netlink_unicast+0x53b/0x810 [ 2196.064839][T25152] ? netlink_attachskb+0x880/0x880 [ 2196.070066][T25152] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2196.075979][T25152] ? __phys_addr_symbol+0x30/0x70 [ 2196.081024][T25152] ? __check_object_size+0x323/0x730 [ 2196.086427][T25152] netlink_sendmsg+0x93c/0xe40 [ 2196.091325][T25152] ? netlink_unicast+0x810/0x810 [ 2196.096320][T25152] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2196.101657][T25152] ? netlink_unicast+0x810/0x810 [ 2196.106640][T25152] __sock_sendmsg+0xd5/0x180 [ 2196.111260][T25152] ____sys_sendmsg+0x6ac/0x940 [ 2196.116044][T25152] ? copy_msghdr_from_user+0x10b/0x160 [ 2196.121528][T25152] ? kernel_sendmsg+0x50/0x50 [ 2196.126227][T25152] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2196.133068][T25152] ___sys_sendmsg+0x135/0x1d0 [ 2196.138043][T25152] ? do_recvmmsg+0x740/0x740 [ 2196.142767][T25152] ? find_held_lock+0x2d/0x110 [ 2196.147603][T25152] ? __fget_light+0xe6/0x260 [ 2196.152230][T25152] __sys_sendmsg+0x117/0x1e0 [ 2196.156894][T25152] ? __sys_sendmsg_sock+0x30/0x30 [ 2196.161941][T25152] ? xfd_validate_state+0x5d/0x180 [ 2196.167191][T25152] ? syscall_enter_from_user_mode+0x26/0x80 [ 2196.173110][T25152] do_syscall_64+0x3f/0x110 [ 2196.177738][T25152] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2196.183650][T25152] RIP: 0033:0x7f70d3c7cae9 [ 2196.188077][T25152] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2196.208074][T25152] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2196.216510][T25152] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2196.224589][T25152] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2196.232580][T25152] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2196.240561][T25152] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2196.249755][T25152] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2196.257775][T25152] [ 2196.332788][T25152] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2196.449725][T25159] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2196.460647][T25159] CPU: 1 PID: 25159 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2196.470781][T25159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2196.480880][T25159] Call Trace: [ 2196.484189][T25159] [ 2196.487145][T25159] dump_stack_lvl+0x125/0x1b0 [ 2196.491929][T25159] sysfs_warn_dup+0x7f/0xa0 [ 2196.496492][T25159] sysfs_create_dir_ns+0x247/0x2a0 [ 2196.501669][T25159] ? sysfs_create_mount_point+0xb0/0xb0 [ 2196.507312][T25159] ? spin_bug+0x1d0/0x1d0 [ 2196.511708][T25159] ? net_namespace+0x12/0x40 [ 2196.516349][T25159] ? device_namespace+0x8d/0xc0 [ 2196.521268][T25159] kobject_add_internal+0x2c8/0x960 [ 2196.526545][T25159] kobject_add+0x16f/0x240 [ 2196.531021][T25159] ? kset_create_and_add+0x190/0x190 [ 2196.536453][T25159] ? do_raw_spin_unlock+0x173/0x230 [ 2196.541809][T25159] ? kobject_put+0xbe/0x440 [ 2196.546378][T25159] device_add+0x289/0x1aa0 [ 2196.550843][T25159] ? device_initialize+0x510/0x510 [ 2196.556104][T25159] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2196.563020][T25159] ? __init_waitqueue_head+0xca/0x150 [ 2196.568527][T25159] netdev_register_kobject+0x183/0x3f0 [ 2196.574025][T25159] register_netdevice+0xbdf/0x14a0 [ 2196.579431][T25159] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2196.585360][T25159] ? validate_linkmsg+0x6fc/0x9c0 [ 2196.590442][T25159] br_dev_newlink+0x27/0x110 [ 2196.595092][T25159] ? br_changelink+0x1760/0x1760 [ 2196.600063][T25159] __rtnl_newlink+0x1173/0x1930 [ 2196.605036][T25159] ? rtnl_link_unregister+0x260/0x260 [ 2196.610646][T25159] rtnl_newlink+0x67/0xa0 [ 2196.615114][T25159] ? __rtnl_newlink+0x1930/0x1930 [ 2196.620346][T25159] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2196.625309][T25159] ? rtnl_getlink+0xb40/0xb40 [ 2196.630043][T25159] netlink_rcv_skb+0x16b/0x440 [ 2196.634853][T25159] ? rtnl_getlink+0xb40/0xb40 [ 2196.639735][T25159] ? netlink_ack+0x1370/0x1370 [ 2196.644540][T25159] ? netlink_deliver_tap+0x1a0/0xd00 [ 2196.649889][T25159] netlink_unicast+0x53b/0x810 [ 2196.654699][T25159] ? netlink_attachskb+0x880/0x880 [ 2196.659852][T25159] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2196.665951][T25159] ? __phys_addr_symbol+0x30/0x70 [ 2196.671002][T25159] ? __check_object_size+0x323/0x730 [ 2196.676323][T25159] netlink_sendmsg+0x93c/0xe40 [ 2196.681117][T25159] ? netlink_unicast+0x810/0x810 [ 2196.686084][T25159] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2196.691382][T25159] ? netlink_unicast+0x810/0x810 [ 2196.696431][T25159] __sock_sendmsg+0xd5/0x180 [ 2196.701132][T25159] ____sys_sendmsg+0x6ac/0x940 [ 2196.705923][T25159] ? copy_msghdr_from_user+0x10b/0x160 [ 2196.711398][T25159] ? kernel_sendmsg+0x50/0x50 [ 2196.716187][T25159] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2196.722218][T25159] ___sys_sendmsg+0x135/0x1d0 [ 2196.727208][T25159] ? do_recvmmsg+0x740/0x740 [ 2196.731856][T25159] ? find_held_lock+0x2d/0x110 [ 2196.736698][T25159] ? __fget_light+0xe6/0x260 [ 2196.741340][T25159] __sys_sendmsg+0x117/0x1e0 [ 2196.746053][T25159] ? __sys_sendmsg_sock+0x30/0x30 [ 2196.751123][T25159] ? xfd_validate_state+0x5d/0x180 [ 2196.756304][T25159] ? syscall_enter_from_user_mode+0x26/0x80 [ 2196.762226][T25159] do_syscall_64+0x3f/0x110 [ 2196.767024][T25159] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2196.772945][T25159] RIP: 0033:0x7f874a47cae9 [ 2196.777375][T25159] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2196.797317][T25159] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2196.806736][T25159] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2196.814739][T25159] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2196.822727][T25159] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2196.830709][T25159] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2196.838694][T25159] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2196.846815][T25159] [ 2196.860880][T25159] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:27 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0xe00, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:27 executing program 5: r0 = socket$nl_sock_diag(0x10, 0x3, 0x4) sendmsg$TCPDIAG_GETSOCK(r0, &(0x7f0000001e40)={&(0x7f0000000b40), 0xc, &(0x7f0000001e00)={&(0x7f0000000c00)={0xe84, 0x12, 0x0, 0x0, 0x0, {}, [@INET_DIAG_REQ_BYTECODE={0xe35, 0x1, "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"}]}, 0xe84}, 0x1, 0x0, 0x0, 0x40}, 0x0) 22:27:27 executing program 2: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$DEVLINK_CMD_RATE_GET(r0, &(0x7f0000000cc0)={&(0x7f0000000bc0), 0xc, &(0x7f0000000c80)={0x0}}, 0x0) 22:27:27 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x71000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:27 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000100a400"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:27 executing program 5: r0 = socket$inet6_sctp(0xa, 0x1, 0x84) ioctl$sock_SIOCETHTOOL(r0, 0x8946, &(0x7f0000000180)={'veth1_macvtap\x00', &(0x7f0000000300)=@ethtool_per_queue_op}) 22:27:27 executing program 2: r0 = socket$kcm(0x29, 0x5, 0x0) sendto(r0, 0x0, 0x0, 0x20004040, 0x0, 0x0) [ 2197.085665][T25184] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2197.097327][T25184] CPU: 1 PID: 25184 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2197.107456][T25184] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2197.117554][T25184] Call Trace: [ 2197.120950][T25184] [ 2197.123935][T25184] dump_stack_lvl+0x125/0x1b0 [ 2197.128683][T25184] sysfs_warn_dup+0x7f/0xa0 [ 2197.133252][T25184] sysfs_create_dir_ns+0x247/0x2a0 [ 2197.138554][T25184] ? sysfs_create_mount_point+0xb0/0xb0 [ 2197.144170][T25184] ? spin_bug+0x1d0/0x1d0 [ 2197.148565][T25184] ? net_namespace+0x12/0x40 [ 2197.153193][T25184] ? device_namespace+0x8d/0xc0 [ 2197.158098][T25184] kobject_add_internal+0x2c8/0x960 [ 2197.163617][T25184] kobject_add+0x16f/0x240 [ 2197.168070][T25184] ? kset_create_and_add+0x190/0x190 [ 2197.173386][T25184] ? do_raw_spin_unlock+0x173/0x230 [ 2197.178703][T25184] ? kobject_put+0xbe/0x440 [ 2197.183244][T25184] device_add+0x289/0x1aa0 [ 2197.187684][T25184] ? device_initialize+0x510/0x510 [ 2197.193263][T25184] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2197.200137][T25184] ? __init_waitqueue_head+0xca/0x150 [ 2197.205653][T25184] netdev_register_kobject+0x183/0x3f0 [ 2197.211156][T25184] register_netdevice+0xbdf/0x14a0 [ 2197.216293][T25184] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2197.222217][T25184] veth_newlink+0x4ef/0xa00 [ 2197.226745][T25184] ? veth_set_features+0x2d0/0x2d0 [ 2197.231879][T25184] ? rtnl_create_link+0xc9c/0xfd0 [ 2197.236932][T25184] ? __rtnl_newlink+0x108a/0x1930 [ 2197.241977][T25184] ? rtnl_newlink+0x67/0xa0 [ 2197.246637][T25184] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2197.251868][T25184] ? alloc_netdev_mqs+0xee6/0x1290 [ 2197.257015][T25184] ? rtnl_create_link+0xa6d/0xfd0 [ 2197.262068][T25184] ? veth_set_features+0x2d0/0x2d0 [ 2197.267288][T25184] __rtnl_newlink+0x1173/0x1930 [ 2197.272167][T25184] ? rtnl_link_unregister+0x260/0x260 [ 2197.277614][T25184] rtnl_newlink+0x67/0xa0 [ 2197.281963][T25184] ? __rtnl_newlink+0x1930/0x1930 [ 2197.287105][T25184] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2197.292678][T25184] ? rtnl_getlink+0xb40/0xb40 [ 2197.297386][T25184] netlink_rcv_skb+0x16b/0x440 [ 2197.302174][T25184] ? rtnl_getlink+0xb40/0xb40 [ 2197.307137][T25184] ? netlink_ack+0x1370/0x1370 [ 2197.311938][T25184] ? netlink_deliver_tap+0x1a0/0xd00 [ 2197.317245][T25184] netlink_unicast+0x53b/0x810 [ 2197.322033][T25184] ? netlink_attachskb+0x880/0x880 [ 2197.327165][T25184] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2197.333077][T25184] ? __phys_addr_symbol+0x30/0x70 [ 2197.338129][T25184] ? __check_object_size+0x323/0x730 [ 2197.343449][T25184] netlink_sendmsg+0x93c/0xe40 [ 2197.348241][T25184] ? netlink_unicast+0x810/0x810 [ 2197.353212][T25184] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2197.358527][T25184] ? netlink_unicast+0x810/0x810 [ 2197.363485][T25184] __sock_sendmsg+0xd5/0x180 [ 2197.368090][T25184] ____sys_sendmsg+0x6ac/0x940 [ 2197.372866][T25184] ? copy_msghdr_from_user+0x10b/0x160 [ 2197.378349][T25184] ? kernel_sendmsg+0x50/0x50 [ 2197.383050][T25184] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2197.389063][T25184] ___sys_sendmsg+0x135/0x1d0 [ 2197.394892][T25184] ? do_recvmmsg+0x740/0x740 [ 2197.399690][T25184] ? find_held_lock+0x2d/0x110 [ 2197.406088][T25184] ? __fget_light+0xe6/0x260 [ 2197.410710][T25184] __sys_sendmsg+0x117/0x1e0 [ 2197.415320][T25184] ? __sys_sendmsg_sock+0x30/0x30 [ 2197.420537][T25184] ? xfd_validate_state+0x5d/0x180 [ 2197.425705][T25184] ? syscall_enter_from_user_mode+0x26/0x80 [ 2197.431649][T25184] do_syscall_64+0x3f/0x110 [ 2197.436193][T25184] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2197.442107][T25184] RIP: 0033:0x7f70d3c7cae9 [ 2197.446544][T25184] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2197.466175][T25184] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2197.474608][T25184] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 22:27:27 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x72000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:27 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) sendmsg$inet_sctp(r0, &(0x7f0000001700)={&(0x7f0000000080)=@in={0x2, 0x0, @private=0xa010103}, 0x10, &(0x7f0000001680)=[{&(0x7f0000000340)='p', 0x1}], 0x1, &(0x7f00000000c0)=ANY=[@ANYBLOB="14"], 0x14}, 0x0) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r0, 0x84, 0x1d, &(0x7f0000000140), &(0x7f0000000180)=0x4) [ 2197.482611][T25184] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2197.490605][T25184] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2197.499024][T25184] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2197.507527][T25184] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2197.515529][T25184] 22:27:27 executing program 2: bpf$PROG_LOAD_XDP(0x5, &(0x7f00000002c0)={0x6, 0x6, &(0x7f0000000380)=ANY=[], &(0x7f00000000c0)='syzkaller\x00', 0x4, 0x3, &(0x7f0000000100)=""/3}, 0x90) 22:27:27 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x73000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:27 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) sendmsg$inet_sctp(r0, &(0x7f0000001700)={&(0x7f0000000080)=@in={0x2, 0x0, @private=0xa010100}, 0x10, &(0x7f0000001680)=[{&(0x7f0000000340)='p', 0x1}], 0x1, &(0x7f00000016c0)=[@init={0x14, 0x84, 0x8}], 0x14}, 0x0) [ 2197.734385][T25184] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2197.966145][T25196] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2197.993597][T25196] CPU: 1 PID: 25196 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2198.004077][T25196] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2198.014146][T25196] Call Trace: [ 2198.017429][T25196] [ 2198.020369][T25196] dump_stack_lvl+0x125/0x1b0 [ 2198.025092][T25196] sysfs_warn_dup+0x7f/0xa0 [ 2198.029642][T25196] sysfs_create_dir_ns+0x247/0x2a0 [ 2198.034785][T25196] ? sysfs_create_mount_point+0xb0/0xb0 [ 2198.040538][T25196] ? spin_bug+0x1d0/0x1d0 [ 2198.044926][T25196] ? net_namespace+0x12/0x40 [ 2198.049530][T25196] ? device_namespace+0x8d/0xc0 [ 2198.054422][T25196] kobject_add_internal+0x2c8/0x960 [ 2198.059658][T25196] kobject_add+0x16f/0x240 [ 2198.064193][T25196] ? kset_create_and_add+0x190/0x190 [ 2198.069513][T25196] ? do_raw_spin_unlock+0x173/0x230 [ 2198.074750][T25196] ? kobject_put+0xbe/0x440 [ 2198.079289][T25196] device_add+0x289/0x1aa0 [ 2198.083813][T25196] ? device_initialize+0x510/0x510 [ 2198.088960][T25196] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2198.095838][T25196] ? __init_waitqueue_head+0xca/0x150 [ 2198.101239][T25196] netdev_register_kobject+0x183/0x3f0 [ 2198.106727][T25196] register_netdevice+0xbdf/0x14a0 [ 2198.111862][T25196] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2198.117773][T25196] ? validate_linkmsg+0x6fc/0x9c0 [ 2198.122836][T25196] br_dev_newlink+0x27/0x110 [ 2198.127456][T25196] ? br_changelink+0x1760/0x1760 [ 2198.132438][T25196] __rtnl_newlink+0x1173/0x1930 [ 2198.137323][T25196] ? rtnl_link_unregister+0x260/0x260 [ 2198.142755][T25196] rtnl_newlink+0x67/0xa0 [ 2198.147117][T25196] ? __rtnl_newlink+0x1930/0x1930 [ 2198.152162][T25196] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2198.157120][T25196] ? rtnl_getlink+0xb40/0xb40 [ 2198.161828][T25196] netlink_rcv_skb+0x16b/0x440 [ 2198.166612][T25196] ? rtnl_getlink+0xb40/0xb40 [ 2198.171321][T25196] ? netlink_ack+0x1370/0x1370 [ 2198.176123][T25196] ? netlink_deliver_tap+0x1a0/0xd00 [ 2198.181447][T25196] netlink_unicast+0x53b/0x810 [ 2198.186587][T25196] ? netlink_attachskb+0x880/0x880 [ 2198.191727][T25196] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2198.198247][T25196] ? __phys_addr_symbol+0x30/0x70 [ 2198.203646][T25196] ? __check_object_size+0x323/0x730 [ 2198.209053][T25196] netlink_sendmsg+0x93c/0xe40 [ 2198.213857][T25196] ? netlink_unicast+0x810/0x810 [ 2198.218826][T25196] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2198.224128][T25196] ? netlink_unicast+0x810/0x810 [ 2198.229087][T25196] __sock_sendmsg+0xd5/0x180 [ 2198.233699][T25196] ____sys_sendmsg+0x6ac/0x940 [ 2198.238478][T25196] ? copy_msghdr_from_user+0x10b/0x160 [ 2198.243952][T25196] ? kernel_sendmsg+0x50/0x50 [ 2198.248651][T25196] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2198.254690][T25196] ___sys_sendmsg+0x135/0x1d0 [ 2198.259395][T25196] ? do_recvmmsg+0x740/0x740 [ 2198.264007][T25196] ? find_held_lock+0x2d/0x110 [ 2198.268826][T25196] ? __fget_light+0xe6/0x260 [ 2198.273448][T25196] __sys_sendmsg+0x117/0x1e0 [ 2198.278058][T25196] ? __sys_sendmsg_sock+0x30/0x30 [ 2198.283101][T25196] ? xfd_validate_state+0x5d/0x180 [ 2198.288499][T25196] ? syscall_enter_from_user_mode+0x26/0x80 [ 2198.294428][T25196] do_syscall_64+0x3f/0x110 [ 2198.298958][T25196] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2198.305160][T25196] RIP: 0033:0x7f874a47cae9 [ 2198.309595][T25196] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2198.329313][T25196] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2198.337741][T25196] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2198.345897][T25196] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2198.353881][T25196] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2198.361866][T25196] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2198.369845][T25196] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2198.378023][T25196] [ 2198.392454][T25196] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:28 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0xf00, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:28 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x79000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:28 executing program 2: r0 = syz_init_net_socket$ax25(0x3, 0x3, 0x0) setsockopt$ax25_int(r0, 0x101, 0x5, &(0x7f0000000000)=0x5952, 0x4) 22:27:28 executing program 5: r0 = socket$inet6(0xa, 0x800000000000002, 0x0) sendto$inet6(r0, 0x0, 0x0, 0x8001, &(0x7f0000000080)={0xa, 0x4e21, 0x0, @dev}, 0x1c) sendmmsg$inet6(r0, &(0x7f0000002900)=[{{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20000000}, 0xa}, {{&(0x7f00000000c0)={0xa, 0x4e24, 0x0, @local}, 0x1c, 0x0, 0x0, &(0x7f0000002540)=[@dontfrag={{0x10, 0x29, 0x3e, 0x40}}], 0x10}}], 0x2, 0x0) [ 2198.618541][T25205] __nla_validate_parse: 6 callbacks suppressed [ 2198.618562][T25205] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2198.635382][T25215] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. 22:27:28 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000101a400"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:28 executing program 0: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$TEAM_CMD_NOOP(r0, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000640)=ANY=[@ANYRES16=0x0, @ANYBLOB="02"], 0x488}}, 0x0) 22:27:28 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x7a000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:28 executing program 5: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000001240)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg(r0, &(0x7f0000002800)={0x0, 0x0, &(0x7f00000026c0)=[{&(0x7f00000003c0)="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0x1000}, {&(0x7f00000013c0)="dd8eb4d9adea738852a5c0118697076784ba0fe4ba1513da343ec7468259f002aaad517df1f7322016494f4c9a4acb1bac5eb2b5044832636a019551650d9e16879d8fd5254f94a536a60375a31869f517adf65dc6ba6cc0588000ff4d888c8fb94ea2ac0ba9540299e1871734991dd6645d25663ba223169c4713806dc3034c09a29bc9ca7258c965e11f91343a5cf5587bf5a2cb21ab4d1f91fce8153501f2fd55215301c59c9c0da3ce18e09dd60422695d13296bfa2c8b8e2984", 0xbc}, {&(0x7f0000001480)="c4e01c178963345ca406d6bb24ade504be08df35cfe338a4c84ad6c54b4b8b43a835b835ae89052fdfd83271c0fb55774fd99ca194f3733a617330e9de86c9d91671a94eeee5256dfd1f56d1baa215b6752f2bd751f4203b9dbfdceb0f1975e68b2295995878ae5404cfd3", 0x6b}, {&(0x7f0000001500)="b7abcffd1844ce0468cc2f22bd7ee0bbdb93eb223868eec1c2247b7d1d0eff4f4ccac7635fd397d56aaab18d486ea0277612dcf5e73b9765cd98957338efc3f302793ed948b1e0c7444627f72849122f117f4004e664a0d9fbe5281100aa7a3243d3a715a4af010266089277eb3934f8e1e045a4354e4b0c7c33d6b7737b55343ed547e2ddd62752d506de9721a356af8b5ee9767b2d2e9beef9c4f45e08a452efdb06854381ed7c1f7cf3658482ebda1a2e23b7bbf91405d925f087a9d55d7758471797b19599efca17b1e4f50d2046002d751ea076665fba7180234d817aeb6e3bcfa0fd59755a5148d72f9ca87bc308e7b4316b49273d41", 0xf9}, {&(0x7f0000001600)="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", 0xca1}], 0x5}, 0x0) 22:27:28 executing program 2: bpf$BPF_BTF_LOAD(0x12, &(0x7f0000000700)={&(0x7f0000000540)={{0xeb9f, 0x1, 0x0, 0x2f, 0x0, 0x18, 0x18, 0x2, [@struct={0x0, 0x1, 0x0, 0x4, 0x0, 0x0, [{}]}]}}, 0x0, 0x32}, 0x20) [ 2198.688012][T25215] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' 22:27:28 executing program 5: syz_open_procfs$namespace(0x0, &(0x7f0000000ac0)='ns/time\x00') 22:27:28 executing program 2: bpf$BPF_PROG_ATTACH(0x8, &(0x7f0000000280)={@map, 0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, @link_id}, 0x20) 22:27:28 executing program 0: bpf$MAP_UPDATE_BATCH(0x1a, 0x0, 0x0) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000002800)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000002700), 0x8}, 0x90) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000002a00)) ioctl$sock_kcm_SIOCKCMUNATTACH(0xffffffffffffffff, 0x89e1, 0x0) [ 2198.799410][T25215] CPU: 1 PID: 25215 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2198.809562][T25215] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2198.819656][T25215] Call Trace: [ 2198.822964][T25215] [ 2198.825926][T25215] dump_stack_lvl+0x125/0x1b0 [ 2198.830666][T25215] sysfs_warn_dup+0x7f/0xa0 [ 2198.835234][T25215] sysfs_create_dir_ns+0x247/0x2a0 [ 2198.840414][T25215] ? sysfs_create_mount_point+0xb0/0xb0 [ 2198.846027][T25215] ? spin_bug+0x1d0/0x1d0 [ 2198.850509][T25215] ? net_namespace+0x12/0x40 [ 2198.855146][T25215] ? device_namespace+0x8d/0xc0 [ 2198.860058][T25215] kobject_add_internal+0x2c8/0x960 [ 2198.865321][T25215] kobject_add+0x16f/0x240 [ 2198.869770][T25215] ? kset_create_and_add+0x190/0x190 [ 2198.875090][T25215] ? do_raw_spin_unlock+0x173/0x230 [ 2198.880327][T25215] ? kobject_put+0xbe/0x440 [ 2198.884967][T25215] device_add+0x289/0x1aa0 [ 2198.889934][T25215] ? device_initialize+0x510/0x510 [ 2198.895075][T25215] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2198.901950][T25215] ? __init_waitqueue_head+0xca/0x150 [ 2198.907378][T25215] netdev_register_kobject+0x183/0x3f0 [ 2198.912884][T25215] register_netdevice+0xbdf/0x14a0 [ 2198.918048][T25215] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2198.923978][T25215] veth_newlink+0x4ef/0xa00 [ 2198.928510][T25215] ? veth_set_features+0x2d0/0x2d0 [ 2198.933651][T25215] ? rtnl_create_link+0xc9c/0xfd0 [ 2198.938701][T25215] ? __rtnl_newlink+0x108a/0x1930 [ 2198.943758][T25215] ? rtnl_newlink+0x67/0xa0 [ 2198.948347][T25215] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2198.953583][T25215] ? alloc_netdev_mqs+0xee6/0x1290 [ 2198.958733][T25215] ? rtnl_create_link+0xa6d/0xfd0 [ 2198.963794][T25215] ? veth_set_features+0x2d0/0x2d0 [ 2198.968964][T25215] __rtnl_newlink+0x1173/0x1930 [ 2198.973955][T25215] ? rtnl_link_unregister+0x260/0x260 [ 2198.980985][T25215] rtnl_newlink+0x67/0xa0 [ 2198.985463][T25215] ? __rtnl_newlink+0x1930/0x1930 [ 2198.990609][T25215] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2198.995676][T25215] ? rtnl_getlink+0xb40/0xb40 [ 2199.000417][T25215] netlink_rcv_skb+0x16b/0x440 [ 2199.005228][T25215] ? rtnl_getlink+0xb40/0xb40 [ 2199.010031][T25215] ? netlink_ack+0x1370/0x1370 [ 2199.014849][T25215] ? netlink_deliver_tap+0x1a0/0xd00 [ 2199.020170][T25215] netlink_unicast+0x53b/0x810 [ 2199.025397][T25215] ? netlink_attachskb+0x880/0x880 [ 2199.030528][T25215] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2199.036482][T25215] ? __phys_addr_symbol+0x30/0x70 [ 2199.041537][T25215] ? __check_object_size+0x323/0x730 [ 2199.046864][T25215] netlink_sendmsg+0x93c/0xe40 [ 2199.051671][T25215] ? netlink_unicast+0x810/0x810 [ 2199.056635][T25215] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2199.062029][T25215] ? netlink_unicast+0x810/0x810 [ 2199.066989][T25215] __sock_sendmsg+0xd5/0x180 [ 2199.071593][T25215] ____sys_sendmsg+0x6ac/0x940 [ 2199.076377][T25215] ? copy_msghdr_from_user+0x10b/0x160 [ 2199.081960][T25215] ? kernel_sendmsg+0x50/0x50 [ 2199.086791][T25215] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2199.092815][T25215] ___sys_sendmsg+0x135/0x1d0 [ 2199.097541][T25215] ? do_recvmmsg+0x740/0x740 [ 2199.102162][T25215] ? find_held_lock+0x2d/0x110 [ 2199.107087][T25215] ? __fget_light+0xe6/0x260 [ 2199.111733][T25215] __sys_sendmsg+0x117/0x1e0 [ 2199.116361][T25215] ? __sys_sendmsg_sock+0x30/0x30 [ 2199.121408][T25215] ? xfd_validate_state+0x5d/0x180 [ 2199.126834][T25215] ? syscall_enter_from_user_mode+0x26/0x80 [ 2199.132837][T25215] do_syscall_64+0x3f/0x110 [ 2199.137384][T25215] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2199.143433][T25215] RIP: 0033:0x7f70d3c7cae9 [ 2199.147863][T25215] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2199.168100][T25215] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2199.176537][T25215] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2199.184523][T25215] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2199.192513][T25215] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2199.201016][T25215] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2199.209086][T25215] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2199.217096][T25215] [ 2199.312652][T25215] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2199.367636][T25218] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2199.384586][T25238] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2199.399259][T25238] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2199.423208][T25238] CPU: 1 PID: 25238 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2199.433429][T25238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2199.443524][T25238] Call Trace: [ 2199.446831][T25238] [ 2199.449792][T25238] dump_stack_lvl+0x125/0x1b0 [ 2199.454616][T25238] sysfs_warn_dup+0x7f/0xa0 [ 2199.459172][T25238] sysfs_create_dir_ns+0x247/0x2a0 [ 2199.464334][T25238] ? sysfs_create_mount_point+0xb0/0xb0 [ 2199.469934][T25238] ? spin_bug+0x1d0/0x1d0 [ 2199.474317][T25238] ? net_namespace+0x12/0x40 [ 2199.478943][T25238] ? device_namespace+0x8d/0xc0 [ 2199.483845][T25238] kobject_add_internal+0x2c8/0x960 [ 2199.489116][T25238] kobject_add+0x16f/0x240 [ 2199.493586][T25238] ? kset_create_and_add+0x190/0x190 [ 2199.498932][T25238] ? do_raw_spin_unlock+0x173/0x230 [ 2199.504359][T25238] ? kobject_put+0xbe/0x440 [ 2199.508919][T25238] device_add+0x289/0x1aa0 [ 2199.513376][T25238] ? device_initialize+0x510/0x510 [ 2199.518587][T25238] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2199.525582][T25238] ? __init_waitqueue_head+0xca/0x150 [ 2199.531000][T25238] netdev_register_kobject+0x183/0x3f0 [ 2199.536515][T25238] register_netdevice+0xbdf/0x14a0 [ 2199.541672][T25238] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2199.547610][T25238] ? validate_linkmsg+0x6fc/0x9c0 [ 2199.552692][T25238] br_dev_newlink+0x27/0x110 [ 2199.557331][T25238] ? br_changelink+0x1760/0x1760 [ 2199.562320][T25238] __rtnl_newlink+0x1173/0x1930 [ 2199.567223][T25238] ? rtnl_link_unregister+0x260/0x260 [ 2199.572670][T25238] rtnl_newlink+0x67/0xa0 [ 2199.577045][T25238] ? __rtnl_newlink+0x1930/0x1930 [ 2199.582111][T25238] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2199.587446][T25238] ? rtnl_getlink+0xb40/0xb40 [ 2199.592363][T25238] netlink_rcv_skb+0x16b/0x440 [ 2199.597199][T25238] ? rtnl_getlink+0xb40/0xb40 [ 2199.601936][T25238] ? netlink_ack+0x1370/0x1370 [ 2199.606854][T25238] ? netlink_deliver_tap+0x1a0/0xd00 [ 2199.612200][T25238] netlink_unicast+0x53b/0x810 [ 2199.617006][T25238] ? netlink_attachskb+0x880/0x880 [ 2199.622246][T25238] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2199.628350][T25238] ? __phys_addr_symbol+0x30/0x70 [ 2199.633502][T25238] ? __check_object_size+0x323/0x730 [ 2199.638846][T25238] netlink_sendmsg+0x93c/0xe40 [ 2199.643674][T25238] ? netlink_unicast+0x810/0x810 [ 2199.648657][T25238] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2199.654061][T25238] ? netlink_unicast+0x810/0x810 [ 2199.659036][T25238] __sock_sendmsg+0xd5/0x180 [ 2199.663674][T25238] ____sys_sendmsg+0x6ac/0x940 [ 2199.668470][T25238] ? copy_msghdr_from_user+0x10b/0x160 [ 2199.673967][T25238] ? kernel_sendmsg+0x50/0x50 [ 2199.678684][T25238] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2199.684735][T25238] ___sys_sendmsg+0x135/0x1d0 [ 2199.689463][T25238] ? do_recvmmsg+0x740/0x740 [ 2199.694089][T25238] ? find_held_lock+0x2d/0x110 [ 2199.699289][T25238] ? __fget_light+0xe6/0x260 [ 2199.703930][T25238] __sys_sendmsg+0x117/0x1e0 [ 2199.708643][T25238] ? __sys_sendmsg_sock+0x30/0x30 [ 2199.713698][T25238] ? xfd_validate_state+0x5d/0x180 [ 2199.718880][T25238] ? syscall_enter_from_user_mode+0x26/0x80 [ 2199.724813][T25238] do_syscall_64+0x3f/0x110 [ 2199.729365][T25238] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2199.735301][T25238] RIP: 0033:0x7f874a47cae9 [ 2199.739743][T25238] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2199.759394][T25238] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e 22:27:29 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x1100, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:29 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x7b000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:29 executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000001240)={0xffffffffffffffff, 0xffffffffffffffff}) recvmsg$unix(r0, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) sendmsg(r1, &(0x7f0000002800)={0x0, 0x0, &(0x7f00000026c0)=[{&(0x7f00000013c0)="dd", 0x1}], 0x1}, 0x0) 22:27:29 executing program 5: bpf$ITER_CREATE(0x21, &(0x7f0000000f40), 0x8) [ 2199.768106][T25238] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2199.776540][T25238] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2199.785072][T25238] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2199.793077][T25238] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2199.801170][T25238] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2199.809204][T25238] 22:27:30 executing program 0: bpf$BPF_MAP_CONST_STR_FREEZE(0x2, &(0x7f0000000000), 0xe0) 22:27:30 executing program 2: socketpair$tipc(0x1e, 0x5, 0x0, &(0x7f0000000600)) 22:27:30 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x7f000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:30 executing program 5: r0 = socket$inet_mptcp(0x2, 0x1, 0x106) bind$inet(r0, &(0x7f0000000040)={0x2, 0x4e24, @multicast2}, 0x10) sendmmsg$inet(r0, &(0x7f00000036c0)=[{{0x0, 0x0, 0x0}}], 0x1, 0x24040040) connect$inet(r0, &(0x7f0000000480)={0x2, 0x4e24, @local}, 0x10) [ 2199.959079][T25238] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2199.992036][T25246] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. 22:27:30 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000102a400"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:30 executing program 5: bpf$OBJ_GET_MAP(0x7, &(0x7f0000003800)=@generic={&(0x7f0000002900)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}, 0x18) [ 2200.073543][T25246] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2200.123201][T25246] CPU: 0 PID: 25246 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2200.133519][T25246] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2200.143606][T25246] Call Trace: [ 2200.146919][T25246] [ 2200.149874][T25246] dump_stack_lvl+0x125/0x1b0 [ 2200.154727][T25246] sysfs_warn_dup+0x7f/0xa0 [ 2200.159413][T25246] sysfs_create_dir_ns+0x247/0x2a0 [ 2200.164671][T25246] ? sysfs_create_mount_point+0xb0/0xb0 [ 2200.170301][T25246] ? spin_bug+0x1d0/0x1d0 [ 2200.174678][T25246] ? net_namespace+0x12/0x40 [ 2200.179287][T25246] ? device_namespace+0x8d/0xc0 [ 2200.184260][T25246] kobject_add_internal+0x2c8/0x960 [ 2200.189851][T25246] kobject_add+0x16f/0x240 [ 2200.194310][T25246] ? kset_create_and_add+0x190/0x190 [ 2200.200246][T25246] ? do_raw_spin_unlock+0x173/0x230 [ 2200.205476][T25246] ? kobject_put+0xbe/0x440 [ 2200.210022][T25246] device_add+0x289/0x1aa0 [ 2200.214460][T25246] ? device_initialize+0x510/0x510 [ 2200.219600][T25246] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2200.226476][T25246] ? __init_waitqueue_head+0xca/0x150 [ 2200.231888][T25246] netdev_register_kobject+0x183/0x3f0 [ 2200.237388][T25246] register_netdevice+0xbdf/0x14a0 [ 2200.242609][T25246] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2200.248528][T25246] veth_newlink+0x4ef/0xa00 [ 2200.253066][T25246] ? veth_set_features+0x2d0/0x2d0 [ 2200.258379][T25246] ? rtnl_create_link+0xc9c/0xfd0 [ 2200.263432][T25246] ? __rtnl_newlink+0x108a/0x1930 [ 2200.268479][T25246] ? rtnl_newlink+0x67/0xa0 [ 2200.273405][T25246] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2200.278631][T25246] ? alloc_netdev_mqs+0xee6/0x1290 [ 2200.283857][T25246] ? rtnl_create_link+0xa6d/0xfd0 [ 2200.289087][T25246] ? veth_set_features+0x2d0/0x2d0 [ 2200.294225][T25246] __rtnl_newlink+0x1173/0x1930 [ 2200.299202][T25246] ? rtnl_link_unregister+0x260/0x260 [ 2200.304628][T25246] rtnl_newlink+0x67/0xa0 [ 2200.309057][T25246] ? __rtnl_newlink+0x1930/0x1930 [ 2200.314182][T25246] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2200.319224][T25246] ? rtnl_getlink+0xb40/0xb40 [ 2200.324016][T25246] netlink_rcv_skb+0x16b/0x440 [ 2200.328886][T25246] ? rtnl_getlink+0xb40/0xb40 [ 2200.333669][T25246] ? netlink_ack+0x1370/0x1370 [ 2200.338571][T25246] ? netlink_deliver_tap+0x1a0/0xd00 [ 2200.343884][T25246] netlink_unicast+0x53b/0x810 [ 2200.348754][T25246] ? netlink_attachskb+0x880/0x880 [ 2200.353882][T25246] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2200.359793][T25246] ? __phys_addr_symbol+0x30/0x70 [ 2200.364837][T25246] ? __check_object_size+0x323/0x730 [ 2200.370161][T25246] netlink_sendmsg+0x93c/0xe40 [ 2200.374949][T25246] ? netlink_unicast+0x810/0x810 [ 2200.379909][T25246] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2200.385208][T25246] ? netlink_unicast+0x810/0x810 [ 2200.390423][T25246] __sock_sendmsg+0xd5/0x180 [ 2200.395036][T25246] ____sys_sendmsg+0x6ac/0x940 [ 2200.399826][T25246] ? copy_msghdr_from_user+0x10b/0x160 [ 2200.405308][T25246] ? kernel_sendmsg+0x50/0x50 [ 2200.410140][T25246] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2200.416177][T25246] ___sys_sendmsg+0x135/0x1d0 [ 2200.420899][T25246] ? do_recvmmsg+0x740/0x740 [ 2200.425690][T25246] ? find_held_lock+0x2d/0x110 [ 2200.430510][T25246] ? __fget_light+0xe6/0x260 [ 2200.435219][T25246] __sys_sendmsg+0x117/0x1e0 [ 2200.439830][T25246] ? __sys_sendmsg_sock+0x30/0x30 [ 2200.444865][T25246] ? xfd_validate_state+0x5d/0x180 [ 2200.450023][T25246] ? syscall_enter_from_user_mode+0x26/0x80 [ 2200.455935][T25246] do_syscall_64+0x3f/0x110 [ 2200.460460][T25246] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2200.466366][T25246] RIP: 0033:0x7f70d3c7cae9 [ 2200.470787][T25246] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2200.490494][T25246] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2200.498934][T25246] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2200.506922][T25246] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2200.514911][T25246] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 22:27:30 executing program 0: r0 = socket$inet_sctp(0x2, 0x1, 0x84) sendmsg$inet_sctp(r0, &(0x7f0000001700)={&(0x7f0000000080)=@in={0x2, 0x0, @private=0xa010100}, 0x10, &(0x7f0000001680)=[{&(0x7f0000000340)='p', 0x1}], 0x1, &(0x7f00000016c0)=[@init={0x14, 0x84, 0x0, {0xc0fe}}], 0x14}, 0x40) 22:27:30 executing program 2: r0 = socket(0x28, 0x5, 0x0) connect$pppl2tp(r0, 0x0, 0xf) [ 2200.522975][T25246] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2200.530957][T25246] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2200.538957][T25246] [ 2200.653275][T25246] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2200.718199][T25251] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2200.734143][T25263] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2200.755245][T25263] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' 22:27:30 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x1400, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:30 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x80ffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:30 executing program 5: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x60, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:30 executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000100a100"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:30 executing program 2: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x3903}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2200.769139][T25263] CPU: 0 PID: 25263 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2200.779360][T25263] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2200.789476][T25263] Call Trace: [ 2200.792795][T25263] [ 2200.795759][T25263] dump_stack_lvl+0x125/0x1b0 [ 2200.800494][T25263] sysfs_warn_dup+0x7f/0xa0 [ 2200.805154][T25263] sysfs_create_dir_ns+0x247/0x2a0 [ 2200.810410][T25263] ? sysfs_create_mount_point+0xb0/0xb0 [ 2200.816108][T25263] ? spin_bug+0x1d0/0x1d0 [ 2200.820596][T25263] ? net_namespace+0x12/0x40 [ 2200.825329][T25263] ? device_namespace+0x8d/0xc0 [ 2200.830251][T25263] kobject_add_internal+0x2c8/0x960 [ 2200.835599][T25263] kobject_add+0x16f/0x240 [ 2200.840080][T25263] ? kset_create_and_add+0x190/0x190 [ 2200.845527][T25263] ? do_raw_spin_unlock+0x173/0x230 [ 2200.851141][T25263] ? kobject_put+0xbe/0x440 [ 2200.855805][T25263] device_add+0x289/0x1aa0 [ 2200.860270][T25263] ? device_initialize+0x510/0x510 [ 2200.865454][T25263] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2200.872387][T25263] ? __init_waitqueue_head+0xca/0x150 [ 2200.877824][T25263] netdev_register_kobject+0x183/0x3f0 [ 2200.883968][T25263] register_netdevice+0xbdf/0x14a0 [ 2200.889144][T25263] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2200.895104][T25263] ? validate_linkmsg+0x6fc/0x9c0 [ 2200.900210][T25263] br_dev_newlink+0x27/0x110 [ 2200.904954][T25263] ? br_changelink+0x1760/0x1760 [ 2200.909958][T25263] __rtnl_newlink+0x1173/0x1930 [ 2200.914879][T25263] ? rtnl_link_unregister+0x260/0x260 [ 2200.920425][T25263] rtnl_newlink+0x67/0xa0 [ 2200.924801][T25263] ? __rtnl_newlink+0x1930/0x1930 [ 2200.929876][T25263] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2200.934859][T25263] ? rtnl_getlink+0xb40/0xb40 [ 2200.939597][T25263] netlink_rcv_skb+0x16b/0x440 [ 2200.944413][T25263] ? rtnl_getlink+0xb40/0xb40 [ 2200.949421][T25263] ? netlink_ack+0x1370/0x1370 [ 2200.954268][T25263] ? netlink_deliver_tap+0x1a0/0xd00 [ 2200.959623][T25263] netlink_unicast+0x53b/0x810 [ 2200.964457][T25263] ? netlink_attachskb+0x880/0x880 [ 2200.969629][T25263] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2200.975758][T25263] ? __phys_addr_symbol+0x30/0x70 [ 2200.980837][T25263] ? __check_object_size+0x323/0x730 [ 2200.986300][T25263] netlink_sendmsg+0x93c/0xe40 [ 2200.991309][T25263] ? netlink_unicast+0x810/0x810 [ 2200.996398][T25263] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2201.001994][T25263] ? netlink_unicast+0x810/0x810 [ 2201.007074][T25263] __sock_sendmsg+0xd5/0x180 [ 2201.011711][T25263] ____sys_sendmsg+0x6ac/0x940 22:27:31 executing program 2: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x1085}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2201.016611][T25263] ? copy_msghdr_from_user+0x10b/0x160 [ 2201.022122][T25263] ? kernel_sendmsg+0x50/0x50 [ 2201.026853][T25263] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2201.032897][T25263] ___sys_sendmsg+0x135/0x1d0 [ 2201.037635][T25263] ? do_recvmmsg+0x740/0x740 [ 2201.042294][T25263] ? find_held_lock+0x2d/0x110 [ 2201.047152][T25263] ? __fget_light+0xe6/0x260 [ 2201.051807][T25263] __sys_sendmsg+0x117/0x1e0 [ 2201.056446][T25263] ? __sys_sendmsg_sock+0x30/0x30 [ 2201.061523][T25263] ? xfd_validate_state+0x5d/0x180 [ 2201.066783][T25263] ? syscall_enter_from_user_mode+0x26/0x80 [ 2201.072765][T25263] do_syscall_64+0x3f/0x110 [ 2201.077347][T25263] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2201.083295][T25263] RIP: 0033:0x7f874a47cae9 [ 2201.087750][T25263] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2201.107659][T25263] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2201.116211][T25263] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2201.124838][T25263] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2201.133285][T25263] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2201.141497][T25263] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2201.149615][T25263] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2201.157656][T25263] 22:27:31 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x81ffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:31 executing program 2: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xf00}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2201.207313][T25263] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2201.298848][T25277] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2201.367295][T25277] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2201.385029][T25277] CPU: 0 PID: 25277 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2201.395249][T25277] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2201.405516][T25277] Call Trace: [ 2201.408821][T25277] [ 2201.411781][T25277] dump_stack_lvl+0x125/0x1b0 [ 2201.416511][T25277] sysfs_warn_dup+0x7f/0xa0 [ 2201.421077][T25277] sysfs_create_dir_ns+0x247/0x2a0 [ 2201.426261][T25277] ? sysfs_create_mount_point+0xb0/0xb0 [ 2201.431960][T25277] ? spin_bug+0x1d0/0x1d0 [ 2201.436344][T25277] ? net_namespace+0x12/0x40 [ 2201.440986][T25277] ? device_namespace+0x8d/0xc0 [ 2201.446017][T25277] kobject_add_internal+0x2c8/0x960 [ 2201.451284][T25277] kobject_add+0x16f/0x240 [ 2201.455765][T25277] ? kset_create_and_add+0x190/0x190 [ 2201.461202][T25277] ? do_raw_spin_unlock+0x173/0x230 [ 2201.466545][T25277] ? kobject_put+0xbe/0x440 [ 2201.471118][T25277] device_add+0x289/0x1aa0 [ 2201.475578][T25277] ? device_initialize+0x510/0x510 [ 2201.480972][T25277] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2201.487995][T25277] ? __init_waitqueue_head+0xca/0x150 [ 2201.493403][T25277] netdev_register_kobject+0x183/0x3f0 [ 2201.498892][T25277] register_netdevice+0xbdf/0x14a0 [ 2201.504031][T25277] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2201.509953][T25277] veth_newlink+0x4ef/0xa00 [ 2201.514496][T25277] ? veth_set_features+0x2d0/0x2d0 [ 2201.519623][T25277] ? rtnl_create_link+0xc9c/0xfd0 [ 2201.524673][T25277] ? __rtnl_newlink+0x108a/0x1930 [ 2201.529710][T25277] ? rtnl_newlink+0x67/0xa0 [ 2201.534290][T25277] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2201.539517][T25277] ? alloc_netdev_mqs+0xee6/0x1290 [ 2201.544658][T25277] ? rtnl_create_link+0xa6d/0xfd0 [ 2201.549733][T25277] ? veth_set_features+0x2d0/0x2d0 [ 2201.554869][T25277] __rtnl_newlink+0x1173/0x1930 [ 2201.559759][T25277] ? rtnl_link_unregister+0x260/0x260 [ 2201.565265][T25277] rtnl_newlink+0x67/0xa0 [ 2201.569609][T25277] ? __rtnl_newlink+0x1930/0x1930 [ 2201.574646][T25277] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2201.579602][T25277] ? rtnl_getlink+0xb40/0xb40 [ 2201.584309][T25277] netlink_rcv_skb+0x16b/0x440 [ 2201.589096][T25277] ? rtnl_getlink+0xb40/0xb40 [ 2201.594150][T25277] ? netlink_ack+0x1370/0x1370 [ 2201.599313][T25277] ? netlink_deliver_tap+0x1a0/0xd00 [ 2201.604638][T25277] netlink_unicast+0x53b/0x810 [ 2201.609813][T25277] ? netlink_attachskb+0x880/0x880 [ 2201.614958][T25277] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2201.621515][T25277] ? __phys_addr_symbol+0x30/0x70 [ 2201.626565][T25277] ? __check_object_size+0x323/0x730 [ 2201.631978][T25277] netlink_sendmsg+0x93c/0xe40 [ 2201.636779][T25277] ? netlink_unicast+0x810/0x810 [ 2201.641747][T25277] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2201.647083][T25277] ? netlink_unicast+0x810/0x810 [ 2201.652139][T25277] __sock_sendmsg+0xd5/0x180 [ 2201.656749][T25277] ____sys_sendmsg+0x6ac/0x940 [ 2201.661528][T25277] ? copy_msghdr_from_user+0x10b/0x160 [ 2201.667177][T25277] ? kernel_sendmsg+0x50/0x50 [ 2201.671875][T25277] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2201.677888][T25277] ___sys_sendmsg+0x135/0x1d0 [ 2201.682584][T25277] ? do_recvmmsg+0x740/0x740 [ 2201.687276][T25277] ? find_held_lock+0x2d/0x110 [ 2201.692087][T25277] ? __fget_light+0xe6/0x260 [ 2201.696703][T25277] __sys_sendmsg+0x117/0x1e0 [ 2201.701316][T25277] ? __sys_sendmsg_sock+0x30/0x30 [ 2201.706461][T25277] ? xfd_validate_state+0x5d/0x180 [ 2201.711629][T25277] ? syscall_enter_from_user_mode+0x26/0x80 [ 2201.717821][T25277] do_syscall_64+0x3f/0x110 [ 2201.722447][T25277] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2201.728394][T25277] RIP: 0033:0x7f70d3c7cae9 [ 2201.732829][T25277] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2201.752546][T25277] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2201.761075][T25277] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2201.769088][T25277] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2201.777248][T25277] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2201.785318][T25277] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2201.793379][T25277] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2201.801380][T25277] [ 2201.813575][T25277] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2201.858636][T25279] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2201.901697][T25286] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. 22:27:32 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000103a400"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:32 executing program 2: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x392}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:32 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x85000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:32 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x1500, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:32 executing program 5: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x6a}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:32 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x6a}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:32 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x85100000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2202.165901][T25304] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2202.218213][T25304] CPU: 0 PID: 25304 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2202.228415][T25304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2202.238493][T25304] Call Trace: [ 2202.241792][T25304] [ 2202.244825][T25304] dump_stack_lvl+0x125/0x1b0 [ 2202.249534][T25304] sysfs_warn_dup+0x7f/0xa0 [ 2202.255122][T25304] sysfs_create_dir_ns+0x247/0x2a0 [ 2202.260269][T25304] ? sysfs_create_mount_point+0xb0/0xb0 [ 2202.265846][T25304] ? spin_bug+0x1d0/0x1d0 [ 2202.270469][T25304] ? net_namespace+0x12/0x40 [ 2202.275076][T25304] ? device_namespace+0x8d/0xc0 [ 2202.279960][T25304] kobject_add_internal+0x2c8/0x960 [ 2202.285196][T25304] kobject_add+0x16f/0x240 [ 2202.289903][T25304] ? kset_create_and_add+0x190/0x190 [ 2202.295255][T25304] ? do_raw_spin_unlock+0x173/0x230 [ 2202.300483][T25304] ? kobject_put+0xbe/0x440 [ 2202.305042][T25304] device_add+0x289/0x1aa0 [ 2202.309479][T25304] ? device_initialize+0x510/0x510 [ 2202.314626][T25304] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2202.321515][T25304] ? __init_waitqueue_head+0xca/0x150 [ 2202.326917][T25304] netdev_register_kobject+0x183/0x3f0 [ 2202.332406][T25304] register_netdevice+0xbdf/0x14a0 [ 2202.337545][T25304] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2202.343478][T25304] veth_newlink+0x4ef/0xa00 [ 2202.348019][T25304] ? veth_set_features+0x2d0/0x2d0 [ 2202.353160][T25304] ? rtnl_create_link+0xc9c/0xfd0 [ 2202.358245][T25304] ? __rtnl_newlink+0x108a/0x1930 [ 2202.363298][T25304] ? rtnl_newlink+0x67/0xa0 [ 2202.367868][T25304] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2202.373183][T25304] ? alloc_netdev_mqs+0xee6/0x1290 [ 2202.378324][T25304] ? rtnl_create_link+0xa6d/0xfd0 [ 2202.383381][T25304] ? veth_set_features+0x2d0/0x2d0 [ 2202.388557][T25304] __rtnl_newlink+0x1173/0x1930 [ 2202.393445][T25304] ? rtnl_link_unregister+0x260/0x260 [ 2202.399297][T25304] rtnl_newlink+0x67/0xa0 [ 2202.403779][T25304] ? __rtnl_newlink+0x1930/0x1930 [ 2202.408905][T25304] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2202.413863][T25304] ? rtnl_getlink+0xb40/0xb40 [ 2202.418641][T25304] ? find_held_lock+0x2d/0x110 [ 2202.423432][T25304] ? rcu_preempt_deferred_qs_irqrestore+0x684/0xdb0 [ 2202.430145][T25304] ? reacquire_held_locks+0x4b0/0x4b0 [ 2202.435721][T25304] netlink_rcv_skb+0x16b/0x440 [ 2202.440506][T25304] ? rtnl_getlink+0xb40/0xb40 [ 2202.445203][T25304] ? netlink_ack+0x1370/0x1370 [ 2202.449984][T25304] ? _raw_spin_unlock_irqrestore+0x3b/0x70 [ 2202.455915][T25304] ? __rcu_read_unlock+0x2ad/0x570 [ 2202.461052][T25304] ? netlink_deliver_tap+0x1a0/0xd00 [ 2202.466374][T25304] netlink_unicast+0x53b/0x810 [ 2202.471168][T25304] ? netlink_attachskb+0x880/0x880 [ 2202.476400][T25304] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2202.482400][T25304] ? __phys_addr_symbol+0x30/0x70 [ 2202.487458][T25304] ? __check_object_size+0x323/0x730 [ 2202.492961][T25304] netlink_sendmsg+0x93c/0xe40 [ 2202.497770][T25304] ? netlink_unicast+0x810/0x810 [ 2202.502922][T25304] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2202.508402][T25304] ? netlink_unicast+0x810/0x810 [ 2202.513368][T25304] __sock_sendmsg+0xd5/0x180 [ 2202.517987][T25304] ____sys_sendmsg+0x6ac/0x940 [ 2202.522765][T25304] ? copy_msghdr_from_user+0x10b/0x160 [ 2202.528264][T25304] ? kernel_sendmsg+0x50/0x50 [ 2202.533106][T25304] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2202.539235][T25304] ___sys_sendmsg+0x135/0x1d0 [ 2202.543969][T25304] ? do_recvmmsg+0x740/0x740 [ 2202.548951][T25304] ? find_held_lock+0x2d/0x110 [ 2202.553890][T25304] ? __fget_light+0xe6/0x260 [ 2202.558542][T25304] __sys_sendmsg+0x117/0x1e0 [ 2202.563171][T25304] ? __sys_sendmsg_sock+0x30/0x30 [ 2202.568228][T25304] ? xfd_validate_state+0x5d/0x180 [ 2202.573391][T25304] ? syscall_enter_from_user_mode+0x26/0x80 [ 2202.579309][T25304] do_syscall_64+0x3f/0x110 [ 2202.583841][T25304] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2202.590099][T25304] RIP: 0033:0x7f70d3c7cae9 [ 2202.594711][T25304] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2202.614335][T25304] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2202.622776][T25304] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2202.630784][T25304] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2202.638774][T25304] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2202.646762][T25304] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2202.655056][T25304] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2202.663152][T25304] 22:27:32 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x85000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:32 executing program 2: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x13}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:32 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1, 0x0, 0x0, 0x88001}, 0xc0fe) 22:27:32 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x85200000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:32 executing program 5: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x7000000, 0x0, {0x0, 0x0, 0x0, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) [ 2203.003370][T25304] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2203.048690][T25313] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2203.062743][T25313] CPU: 0 PID: 25313 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2203.072864][T25313] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2203.083051][T25313] Call Trace: [ 2203.086461][T25313] [ 2203.089419][T25313] dump_stack_lvl+0x125/0x1b0 [ 2203.094424][T25313] sysfs_warn_dup+0x7f/0xa0 [ 2203.098996][T25313] sysfs_create_dir_ns+0x247/0x2a0 [ 2203.104173][T25313] ? sysfs_create_mount_point+0xb0/0xb0 [ 2203.109775][T25313] ? spin_bug+0x1d0/0x1d0 [ 2203.114177][T25313] ? net_namespace+0x12/0x40 [ 2203.118803][T25313] ? device_namespace+0x8d/0xc0 [ 2203.123869][T25313] kobject_add_internal+0x2c8/0x960 [ 2203.129146][T25313] kobject_add+0x16f/0x240 [ 2203.133617][T25313] ? kset_create_and_add+0x190/0x190 [ 2203.138956][T25313] ? do_raw_spin_unlock+0x173/0x230 [ 2203.144247][T25313] ? kobject_put+0xbe/0x440 [ 2203.148824][T25313] device_add+0x289/0x1aa0 [ 2203.153299][T25313] ? device_initialize+0x510/0x510 [ 2203.158587][T25313] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2203.165481][T25313] ? __init_waitqueue_head+0xca/0x150 [ 2203.170993][T25313] netdev_register_kobject+0x183/0x3f0 [ 2203.176502][T25313] register_netdevice+0xbdf/0x14a0 [ 2203.181831][T25313] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2203.187802][T25313] ? validate_linkmsg+0x6fc/0x9c0 [ 2203.193053][T25313] br_dev_newlink+0x27/0x110 [ 2203.197862][T25313] ? br_changelink+0x1760/0x1760 [ 2203.202848][T25313] __rtnl_newlink+0x1173/0x1930 [ 2203.207755][T25313] ? rtnl_link_unregister+0x260/0x260 [ 2203.213369][T25313] rtnl_newlink+0x67/0xa0 [ 2203.217745][T25313] ? __rtnl_newlink+0x1930/0x1930 [ 2203.222790][T25313] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2203.227775][T25313] ? rtnl_getlink+0xb40/0xb40 [ 2203.232528][T25313] netlink_rcv_skb+0x16b/0x440 [ 2203.237330][T25313] ? rtnl_getlink+0xb40/0xb40 [ 2203.242035][T25313] ? netlink_ack+0x1370/0x1370 [ 2203.246842][T25313] ? netlink_deliver_tap+0x1a0/0xd00 [ 2203.252152][T25313] netlink_unicast+0x53b/0x810 [ 2203.256965][T25313] ? netlink_attachskb+0x880/0x880 [ 2203.262732][T25313] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2203.268786][T25313] ? __phys_addr_symbol+0x30/0x70 [ 2203.274620][T25313] ? __check_object_size+0x323/0x730 [ 2203.280031][T25313] netlink_sendmsg+0x93c/0xe40 [ 2203.284831][T25313] ? netlink_unicast+0x810/0x810 [ 2203.289801][T25313] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2203.295121][T25313] ? netlink_unicast+0x810/0x810 [ 2203.300085][T25313] __sock_sendmsg+0xd5/0x180 [ 2203.304692][T25313] ____sys_sendmsg+0x6ac/0x940 [ 2203.309489][T25313] ? copy_msghdr_from_user+0x10b/0x160 [ 2203.315158][T25313] ? kernel_sendmsg+0x50/0x50 [ 2203.319961][T25313] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2203.325974][T25313] ___sys_sendmsg+0x135/0x1d0 [ 2203.330673][T25313] ? do_recvmmsg+0x740/0x740 [ 2203.335283][T25313] ? find_held_lock+0x2d/0x110 [ 2203.340183][T25313] ? __fget_light+0xe6/0x260 [ 2203.344856][T25313] __sys_sendmsg+0x117/0x1e0 [ 2203.349464][T25313] ? __sys_sendmsg_sock+0x30/0x30 [ 2203.354506][T25313] ? xfd_validate_state+0x5d/0x180 [ 2203.359661][T25313] ? syscall_enter_from_user_mode+0x26/0x80 [ 2203.365665][T25313] do_syscall_64+0x3f/0x110 [ 2203.370209][T25313] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2203.376116][T25313] RIP: 0033:0x7f874a47cae9 [ 2203.380800][T25313] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2203.401251][T25313] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2203.409704][T25313] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2203.417698][T25313] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2203.425681][T25313] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2203.433849][T25313] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2203.442024][T25313] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2203.450040][T25313] [ 2203.459977][T25313] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:33 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000280)='cgroup.controllers\x00', 0x275a, 0x0) write$cgroup_int(r1, &(0x7f0000000000), 0xffd2) setsockopt$SO_BINDTODEVICE(r1, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000080)='cgroup.controllers\x00', 0xb00000000065808, 0x0) r3 = socket$nl_generic(0x10, 0x3, 0x10) sendfile(r3, r2, 0x0, 0x100000003) sendfile(r3, r0, &(0x7f0000000100)=0x3, 0x8) ioctl$F2FS_IOC_MOVE_RANGE(r0, 0xc020f509, &(0x7f00000000c0)={r2, 0x0, 0xef, 0x5}) openat$cgroup_ro(r4, &(0x7f0000000180)='pids.current\x00', 0x0, 0x0) sendmsg$inet_sctp(r0, &(0x7f0000000140)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:27:33 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) getsockopt$inet_sctp_SCTP_ASSOCINFO(r0, 0x84, 0x1, &(0x7f0000000100)={0x0, 0x394, 0x3, 0x80, 0x101, 0x7}, &(0x7f0000000140)=0x14) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xfc) 22:27:33 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x85ffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:33 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x5865, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:33 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000100a500"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) [ 2203.653308][T25332] __nla_validate_parse: 9 callbacks suppressed [ 2203.653329][T25332] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.5'. [ 2203.670830][ T28] audit: type=1804 audit(1699655253.703:854): pid=25338 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir1752065075/syzkaller.vbosKk/2836/cgroup.controllers" dev="sda1" ino=1984 res=1 errno=0 22:27:33 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x86000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2203.690824][T25341] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2203.715530][T25341] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' 22:27:33 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {0x8c}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2203.843125][T25341] CPU: 1 PID: 25341 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2203.853548][T25341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2203.863747][T25341] Call Trace: [ 2203.867066][T25341] [ 2203.870034][T25341] dump_stack_lvl+0x125/0x1b0 [ 2203.874785][T25341] sysfs_warn_dup+0x7f/0xa0 [ 2203.879352][T25341] sysfs_create_dir_ns+0x247/0x2a0 [ 2203.884543][T25341] ? sysfs_create_mount_point+0xb0/0xb0 [ 2203.890159][T25341] ? spin_bug+0x1d0/0x1d0 [ 2203.894989][T25341] ? net_namespace+0x12/0x40 [ 2203.899787][T25341] ? device_namespace+0x8d/0xc0 [ 2203.904700][T25341] kobject_add_internal+0x2c8/0x960 [ 2203.910012][T25341] kobject_add+0x16f/0x240 [ 2203.914582][T25341] ? kset_create_and_add+0x190/0x190 [ 2203.919933][T25341] ? do_raw_spin_unlock+0x173/0x230 [ 2203.925198][T25341] ? kobject_put+0xbe/0x440 [ 2203.929804][T25341] device_add+0x289/0x1aa0 [ 2203.934357][T25341] ? device_initialize+0x510/0x510 22:27:33 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {0x83}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2203.939542][T25341] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2203.946537][T25341] ? __init_waitqueue_head+0xca/0x150 [ 2203.951980][T25341] netdev_register_kobject+0x183/0x3f0 [ 2203.957517][T25341] register_netdevice+0xbdf/0x14a0 [ 2203.962689][T25341] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2203.968639][T25341] ? validate_linkmsg+0x6fc/0x9c0 [ 2203.973727][T25341] br_dev_newlink+0x27/0x110 [ 2203.978383][T25341] ? br_changelink+0x1760/0x1760 [ 2203.983372][T25341] __rtnl_newlink+0x1173/0x1930 [ 2203.988580][T25341] ? rtnl_link_unregister+0x260/0x260 [ 2203.994037][T25341] rtnl_newlink+0x67/0xa0 [ 2203.998412][T25341] ? __rtnl_newlink+0x1930/0x1930 [ 2204.003480][T25341] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2204.008470][T25341] ? rtnl_getlink+0xb40/0xb40 [ 2204.013299][T25341] netlink_rcv_skb+0x16b/0x440 [ 2204.018116][T25341] ? rtnl_getlink+0xb40/0xb40 [ 2204.022933][T25341] ? netlink_ack+0x1370/0x1370 [ 2204.027790][T25341] ? netlink_deliver_tap+0x1a0/0xd00 [ 2204.033404][T25341] netlink_unicast+0x53b/0x810 [ 2204.038232][T25341] ? netlink_attachskb+0x880/0x880 [ 2204.043561][T25341] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2204.049516][T25341] ? __phys_addr_symbol+0x30/0x70 [ 2204.054593][T25341] ? __check_object_size+0x323/0x730 [ 2204.060038][T25341] netlink_sendmsg+0x93c/0xe40 [ 2204.064877][T25341] ? netlink_unicast+0x810/0x810 [ 2204.069955][T25341] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2204.075289][T25341] ? netlink_unicast+0x810/0x810 [ 2204.080277][T25341] __sock_sendmsg+0xd5/0x180 [ 2204.085692][T25341] ____sys_sendmsg+0x6ac/0x940 [ 2204.090504][T25341] ? copy_msghdr_from_user+0x10b/0x160 [ 2204.096015][T25341] ? kernel_sendmsg+0x50/0x50 [ 2204.100740][T25341] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2204.106785][T25341] ___sys_sendmsg+0x135/0x1d0 [ 2204.111597][T25341] ? do_recvmmsg+0x740/0x740 [ 2204.116319][T25341] ? find_held_lock+0x2d/0x110 [ 2204.121168][T25341] ? __fget_light+0xe6/0x260 [ 2204.125819][T25341] __sys_sendmsg+0x117/0x1e0 [ 2204.130652][T25341] ? __sys_sendmsg_sock+0x30/0x30 [ 2204.135730][T25341] ? xfd_validate_state+0x5d/0x180 [ 2204.141098][T25341] ? syscall_enter_from_user_mode+0x26/0x80 [ 2204.147044][T25341] do_syscall_64+0x3f/0x110 [ 2204.151618][T25341] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2204.157553][T25341] RIP: 0033:0x7f874a47cae9 [ 2204.161999][T25341] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2204.181645][T25341] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e 22:27:34 executing program 0: pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_inet6_SIOCDIFADDR(r0, 0x8936, &(0x7f0000000240)={@private0={0xfc, 0x0, '\x00', 0x1}, 0x60}) r1 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r1, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r1, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='net_prio.prioidx\x00', 0x275a, 0x0) write$binfmt_script(r2, &(0x7f0000000000)=ANY=[], 0x208e24b) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x28011, r2, 0x0) preadv(r2, &(0x7f00000015c0)=[{&(0x7f0000000080)=""/124, 0xffffffff000}], 0x5, 0x0, 0x0) getsockopt$inet_sctp_SCTP_ENABLE_STREAM_RESET(0xffffffffffffffff, 0x84, 0x76, &(0x7f0000003440)={0x0, 0xf523}, &(0x7f0000003480)=0x8) sendmmsg$inet_sctp(r1, &(0x7f0000003580)=[{&(0x7f0000000280)=@in={0x2, 0x4e20, @local}, 0x10, &(0x7f0000001800)=[{&(0x7f0000000300)="a837fd047357cd292f1ab470610a64017392eb3639301ab990ba06827cca0b1c21da0679b1a4cdddaeacda413202660537c1", 0x32}, {&(0x7f0000000340)="8d6432b08508562136d125dd95b2977a6beebf", 0x13}, {&(0x7f0000000380)="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{&(0x7f0000001d40)="ea9815ddd2420c0e45113d9838585d472e6c7662c5ff1f795f5819857f524dd56bd63b542c723827eca50c91168f1cfed1880f2041673ac213a8d179d9344c0f3e55e2028adcc0b7458d43f98876307dc060a845f82d44c55e5c0b230f72f7fdc4fd8450437ceef7e383fa8c3ecacf1dfb0f026563b6b087d0aa050626fc04cf84f45f471a48e3a8e4327cb9cc6bafcd1bf268984456b4dbac6adfec1ec4652e07c2b1ff8963239f3c2f815f5cc2e7947f0cde953c4fec27662e96328d1fab0a60a692a571853d532ace80d8758a204243b88d6fc6a1313e5e23e7cc2146", 0xde}, {&(0x7f0000001e40)="aa53e012a7573596", 0x8}], 0x7, &(0x7f0000001f00)=[@prinfo={0x18, 0x84, 0x5, {0x0, 0xfff}}], 0x18, 0x4000}, {&(0x7f0000001f40)=@in={0x2, 0x4e21, @remote}, 0x10, &(0x7f00000030c0)=[{&(0x7f0000001f80)="b33fc6b59b1c7ef9f42d177c0d3c9d73c625145621ca6f47d54df74c018cf50c8fb0a77ce63423bc6a542cec85e1ba5a54ab4a5b6edd950c4c6705c5e7578f034c2c09ab803fcc846b6df36eae20416f36aacf8f878949d8a973b70989aa88601f6eb9ece3150f47eebc3d7190b23c9bfd8ea23f4c6e", 0x76}, {&(0x7f0000002000)="34297ab40ed5d983f1b81327fa9da39f12672cb99b34cd00300ed8c3fbbeab96c5f3d11063ace44bf337f3edef5847b1749c8a8ecec0ef6ed0c1fbbc18988932975c8db04e62eeef0d46df6592761450ec22cb9d5e768eb390235ab62cba016c342d6c164191dca2d53807d42ec9a8757d9fe0f2f3564848a12ca23f1beeac4e6152ca1af8b575f3474dd90ef8955a10307bcd5e4639f39e02dd", 0x9a}, {&(0x7f00000020c0)="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", 0x1000}], 0x3, 0x0, 0x0, 0x20000000}, {&(0x7f0000003100)=@in={0x2, 0x4e24, @empty}, 0x10, &(0x7f00000033c0)=[{&(0x7f0000003140)="5051146c0372a9641ea8341eff737c634429eb77d4eb9b3ac04271591e2f8ca1fe179fcd7db5148d8bfd20fb60121ca74eaaf844001037b113c5622ed0e6bbcdd63e87099d22c8fb842e2f279cdb3087f0d59e4d5f8cc2ee4c6e1ad90fe6d7253ae6b401c89de5bc019df9706dabd234b3f80c9bd7f0422457d8357a1295795952a1c6e1009e64c95de1c12db39dcf56c35a8f308d081fcbe85ba752a0b2a1686e5608ba316b9b140321424a6b0a64877a0524ec7bd59620", 0xb8}, {&(0x7f0000003200)="3b209d5bbeaa46bc2ab47393eb2aedc10e3d4874c1296f286afbe15ba6590f540245d49961732a4bb7cc4878cf41451c8cb3e65e67b2ffc00dcf66c3ec29502b905b2ea6941ead9c1f469e808b066f99488f0448e0d52f5aef682c8295b60b71e79458b1f82cb26c41d35c36e8033c188df7440ab46c3459d854dd610c5bc7a4f575ecc8eee0fff5f0b90010c6d7807dccfbf5d66ad025d651e013102f97c1d71bef32ff9aad0b97f6fca2cd9602", 0xae}, {&(0x7f00000032c0)="e004f63a236010cc4bff992f74b0a0eead4b3f7b75b3df164849ccd16336961525b4", 0x22}, {&(0x7f0000003300)="acb7f1c06ef4f4a2c3148bde75d11201e89f7a7d9fb34d95aeee5f", 0x1b}, {&(0x7f0000003340)="d2c7d3b5981b9e00f3440643b094854aba1a324dc4fec0fd41189374c24e0d2fe2fb2938771eb26dd3fa56c18e2a31ace27c4df869", 0x35}, {&(0x7f0000003380)}], 0x6, &(0x7f00000034c0)=[@sndinfo={0x20, 0x84, 0x2, {0x0, 0x201, 0xdb, 0x6, r3}}, @dstaddrv4={0x18, 0x84, 0x7, @broadcast}, @dstaddrv6={0x20, 0x84, 0x8, @private1}, @dstaddrv4={0x18, 0x84, 0x7, @multicast2}, @init={0x18, 0x84, 0x0, {0x20, 0xffe0, 0xd6, 0x6}}, @dstaddrv4={0x18, 0x84, 0x7, @dev={0xac, 0x14, 0x14, 0x42}}], 0xa0, 0x10000000}], 0x4, 0x0) getsockopt$inet_sctp_SCTP_MAX_BURST(r2, 0x84, 0x14, &(0x7f0000000180), &(0x7f00000001c0)=0x4) getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000100)=@assoc_value, &(0x7f0000000140)=0x8) 22:27:34 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x87020000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2204.190102][T25341] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2204.198131][T25341] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2204.206138][T25341] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2204.214319][T25341] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2204.222327][T25341] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2204.230376][T25341] 22:27:34 executing program 5: pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_inet6_SIOCDIFADDR(r0, 0x8936, &(0x7f0000000240)={@private0={0xfc, 0x0, '\x00', 0x1}, 0x60}) r1 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r1, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r1, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='net_prio.prioidx\x00', 0x275a, 0x0) write$binfmt_script(r2, &(0x7f0000000000)=ANY=[], 0x208e24b) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x28011, r2, 0x0) preadv(r2, &(0x7f00000015c0)=[{&(0x7f0000000080)=""/124, 0xffffffff000}], 0x5, 0x0, 0x0) getsockopt$inet_sctp_SCTP_ENABLE_STREAM_RESET(0xffffffffffffffff, 0x84, 0x76, &(0x7f0000003440)={0x0, 0xf523}, &(0x7f0000003480)=0x8) sendmmsg$inet_sctp(r1, &(0x7f0000003580)=[{&(0x7f0000000280)=@in={0x2, 0x4e20, @local}, 0x10, &(0x7f0000001800)=[{&(0x7f0000000300)="a837fd047357cd292f1ab470610a64017392eb3639301ab990ba06827cca0b1c21da0679b1a4cdddaeacda413202660537c1", 0x32}, {&(0x7f0000000340)="8d6432b08508562136d125dd95b2977a6beebf", 0x13}, {&(0x7f0000000380)="1f2786771d066b5bf10faa6776af095ae3eff6a81905e5f0096ec3941297a76aed8de21281c208f1b9407322740a481e6772bd164419bea9dd4c4200e6fc729609ee97f603bf073807ea9e2f52886a62a96f2984a29a2d809bf2e05eff6330eda9fb250b8b931923ae99e230ff196843f6093606fa74d64e28c9676f586cbff362e1caf80b5861cedb0ef2da9bd33d8ef367b873157c2cab2cdf14629b573cd2a835d3b602b18c3b56f6ab5665ae026c9c43893218ea251c5343ca49154b681477179a8297f146668b8224e205cf358a8ed5807645c9a7d3d56d04703edfac1a525dbd10b3d987580268c8ada5d6e811037918c55bd010a2b15a6d6c3cc25c8136c8c151f5a282198c0c2da2d3f4879f20ae20094702e4216e032b6613e02e3f2b03b61774f450b6cba7cc4a827e14079c9aa2f1716db5b4f816bf5427ac80ee33766fc869c2982d155ef6658b8a404d477ba94d4655fbeac276a9550dbd97d48607242eb73d46d729bd6739c4afba9dba87e32bcba0043e8924b655fefc201a2925e1de22f02454bbc1ce472493b87e6eab16bed52317e464db79b79b62fbfeaca8896ebb38cc13baa8ed3f8acc1ed133b50aae91bb7561abc798980bcb2b07eb955e6f8754835e5fd8172c30600cdfab86984954751908df680c6105ac481e2d5c9be762925eb7ec2bc09c0563309dd2d8ef56b391ba3df654e2fec1ea3382b8061d4fdc88d208a93ac9d7c94ccfec634b7df4f92d9f878ce4d956d1eda9f8002a12217cd9ed1a5a9f1ee4f6cde6b1bbf50ed2394ffbc9686f74a9f92e58553a9e00a82932a433c7867af205acb5d610694894a5fe7530a7804cb6fd31c45f74cef3c754b1b0edf96ddd200417177ac37cb03d339d2e4f46ec5179d16b1aa72a9d9964eed491be7ffc462a60461a888ce73b25f7e19902a0fdc1b4439729c16d05a21a7edd5c1ecf020bcc3f05c5a46ed52d2c09e8b867059b07eca3babac7cd58c09541abde23fb8df798b1730f2210219c59e35da2ac27c6486f99ef546ec1767ea4a2b544f417d142a834433b3c85e6cfb0648e3d8a97008e5cf44235d9d3a58ff1073fcc1034a1aa48acc457cfc54238353a02a4264c7484de2332614703fdce15e540942a0ab1c6de26077837cd81a058eb24adc2875e0f5cc4a3e8380e7806c1acc1a7fe32301c1a80e2405bcf52645c7839d4558e35f2b6b5622eec9ed1bb3d362817023cd4231fab84d0e50e95d73ac938d21ff125d3f1003356437d7a9424328453f9f61237d3f7e573b642cd8e0ad2a4888ad43f516ed7e0354dfefbafa4e8900eaf6097634d3f83e4703d1653e86f7ac71e947858188ad6d94bac9204e46a4fc0e1246cd4cc9c5d58754eb0838c3646ea6848b1e3f694d18e3947f2ffbf4908b15d6df50e6c02516ec21ad73554c7b99aa8cf9088dd0b3041e7e40e548be930a1f833854018291213688edd5320ad7da177d7cc39b614d8cc426523b1c08abe6103fe63a1b43f30110dcd9c46228afe4873931612cc8b6f25a594696802ea49dc99ee48fb14bff541ba10fdcfb95366ff9d52152ede04b364f962eda240e44b427e90570dbc03854e91371bc6b46bd6b0a4e6162bf50c547dd10f20b75414b7532cbe0f0acabfe6e512388c4dce732d4ebb696bbc3002503bad554275b83c77d750104e31571b8cb645b7469055a35ec0b630ac4d617f04e3593f31dda7992067c18c72995c30a1519dc85cd03881999f06ce75e6a538b6058312e8147260c80469658fdb433caf591a208218f6a0e30b525b2faa51032b13dbc7bcf2b43224d869abdb5dc8e3d0d4afbd123b5e74a198a7933b72e3d3e3dae1c14f7395cb8ca19c05cf64eb2a23fadd63017c951d2c6a89ca47d33aa4939fd2834c41e9d7cef35f44d6bf4710c6abaa8b641acd9128d4739a7da5ef56f5ce145f9fefd6f91f77333ffd5ddba35c83293c9a22dd4389718ff3143631ee64cc528f0531abf4ff01ba56adf551fd848c4a52b078a279c17adb8bcd6bce6ea71ef38b3f4efa8f1b2b80ec86863d1242ab0b00b99feef111cc65850305e7b9497955177284c67ebb60fd8b53ccf8e650e9f1ee176ba7e06c3f58e66063999086e5cf175d8102bcd59396180548de8bab6c4750a1f2e716e952d9a8b7fdb32471fd5816d0270086af936be9bf7de9d5e79c50f11aa5612ef9436de203f4e79fbc1c8142c1f6a5ad3483bd1467070e412b59299144dba9dbb5f4e94de9c5f9bdb85c42cf62c0c69ecf8ad87ed8b3d58b1255b9aab9a109a37276c3f0cdb4ca7751ae90b9e0ef03fe322007f9da95ce016a5e5df2b2c09d539a974eff78b371b46f9ee94ded5bac9ba48d70f294c8756100719aefd628bbaa3d7394d1687a81c0222920b4bbb363eb555b682386e22bc4b0612ff15af9a1618fb97d951b658bf1763c0df8a3fa843a34905dbd92bf086d07dbb071dd27ef9c2f5f4614b649d84d6321f912a66b7f5e3398fe67f02b227f76991e5b652bf42f0a90fc01d4364a2ec759c28ac6592f5eee396227da0e1840dbb7b49fa626cb5e4765c3183620fcedb940db82cfc23e8295bbcfdf7b602489f059e4dd12f9783f4c3a5232fa0d40c546af6b11a6b73b71e01e5a78292d02a917d37dc4e75861aaa921e508292ab7019eed1d769c6dd32d7bdc219e4e96979b4c016ba2f53e63a496dab3436bbd69b2dc4b20ac66488c29f4379d1e6464de94ae4c01ebca8378d9062d57b7c6ce6d0900d3f5e730bf00899d9db86a91b08a486ccdb584ce88458bbfc9f5e6c975392193c5c0cfe131f2c1d8c2f87bf3f608e774a078a81b803d0eabc38372f4c4ae6d3a596ab6a2891bef9de9b5f40a08465dd9ae73aa8b48e541d90e24ccd2bf9aca9e69245daa5fbb105b8a7c828811488dd9d25a7b29b44b402b54bf652dc1c762b930ce27236ca586bf44f017e42f064dd7ab2ff2ed76a2abc2eda2304315f0ab6fc071415e14b54dd2e252577bd899eb328eff0c048dcd24c3b9c71176dd5174a66fe94dece8df103d140aa58512ff9f9eefdf381bfe9ccd70e9bf2492363553b7cd432c999bec982853ee1b4b7aff940b06dd64870f24411ede8587e45d2197f1f11c64ac91214863deac306b9c597f5eba7eae8839627200608e851f5b27dbf6fd879674d18678abc7c2cf7b9877a480f0b8738f7f858d5927c2712e64ab78855ded6603c81ce19b1cb6173b6925afded44940de5d33596232bb1e6e8cc96987fa622e5eee333a9c4232aaaffe834a2bcd5b7e564cc04ac9d92097e71302bfcae7cbfd75aeef7fd088115225352ecf3d6aa1ac4e1309d4e60559a760bd7c6a6ed1bdd55e6dd5d544c054935b669466448d1cd66d5344bfddcee4278dc6066045f418c66633ecbc5e26e1a11f8e1d2c2c5b0f9074b7472675012d41c58200b8e07971affa5a81318840c83b84b6bf26ad9cab552512da39d27a86e8298b3f46447717831cc38104607956aeb4e706386a6eb504bc0d3bcb6949e6d55a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0x1000}, {&(0x7f0000001380)="b0afa61f9c203344f2791282b64f97261f08f5ba36fd5b65e8d34d8ca9f08cc25f7f6e44db9116b1aca5554d0415cc03a3640bea7102501ace336a58e37fa8aa2a4354fde69b4fa06d8fa228a912c64e882bb818d29129f98cfc10b6b11bb8ac93c8f2e4450e78050841d233e4ba2eeffe8ea06c7d76946da589cd922360239e17c6fdb00b8ebaa37d94ef107ecfe9ea49f3fed437c9b11adb5c5ab5bd280e24b03173e26e606e56f23102ec20dc244b74f08a05e065f808bdb618d018d59d1d2a3abed5c6c155597a0bc694d065b8d5e3", 0xd1}, {&(0x7f0000001480)="43b2ac4e34c0360d5093853b55909d2ada6670e82b80c075b251611790609c0db5aa7ad8106466b28ef9d5cf6a54f625c231128069a94949b3b5385920f990fccd1846410324b7bcc023d351541ff3fa8814e3d3d04a4b4706008a9e6412fe6638e26667f860e9e3c000c632df36351618da7a11b8986d7db0b073ea4c7a46b129c25477f29062aac021a9a9c9d4487e43abe731151b02abb4aee1ca5608e29df9f7a343656d69c71afa", 0xaa}, {&(0x7f0000001540)="e312def05cd372de3f4d5d6cc4d68c1c6db9dab8303cb91a4a0c19a01111209a55d77c4635ec1494a48a59b072d7587c4067043e23aa505fb3c22def27c19c3593ac4d103747eeca12fc18419d8d1f69656e202174fe5a01448d90760635e67bc6c78a7096e791ca39778ddaf83b1db71d", 0x71}, {&(0x7f0000001600)="fdc008a1a64656377e938ecaf1437ab7fd6478", 0x13}, {&(0x7f0000001640)="797046b559b02fdab34cd7f53d516164dc8a85f3658bde0effe18149b0559a9593b32cffc44ca1524c7f8a82ac51ec6f7448193025fb44812329e0cd30d0e7dd553d9484c6e5db18fedbd83f7b14624e3c4437812499f399e2d15d0646f1051219fa5748c8b1bf8f7f7c9f11d00563a7ab9b4071414ac44dbe2e0fa850e9bbbb6ddde7fd3ba57dce84e04177a2a6489830dd146f01cf706ba07507d1aa48bd72b62b6660994c526ea90e702f7811a55b3b75691e6b216e24ad12b729b29132e7a6e81e16bf2bd5002a", 0xc9}, 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0x1000}], 0x3, 0x0, 0x0, 0x20000000}, {&(0x7f0000003100)=@in={0x2, 0x4e24, @empty}, 0x10, &(0x7f00000033c0)=[{&(0x7f0000003140)="5051146c0372a9641ea8341eff737c634429eb77d4eb9b3ac04271591e2f8ca1fe179fcd7db5148d8bfd20fb60121ca74eaaf844001037b113c5622ed0e6bbcdd63e87099d22c8fb842e2f279cdb3087f0d59e4d5f8cc2ee4c6e1ad90fe6d7253ae6b401c89de5bc019df9706dabd234b3f80c9bd7f0422457d8357a1295795952a1c6e1009e64c95de1c12db39dcf56c35a8f308d081fcbe85ba752a0b2a1686e5608ba316b9b140321424a6b0a64877a0524ec7bd59620", 0xb8}, {&(0x7f0000003200)="3b209d5bbeaa46bc2ab47393eb2aedc10e3d4874c1296f286afbe15ba6590f540245d49961732a4bb7cc4878cf41451c8cb3e65e67b2ffc00dcf66c3ec29502b905b2ea6941ead9c1f469e808b066f99488f0448e0d52f5aef682c8295b60b71e79458b1f82cb26c41d35c36e8033c188df7440ab46c3459d854dd610c5bc7a4f575ecc8eee0fff5f0b90010c6d7807dccfbf5d66ad025d651e013102f97c1d71bef32ff9aad0b97f6fca2cd9602", 0xae}, {&(0x7f00000032c0)="e004f63a236010cc4bff992f74b0a0eead4b3f7b75b3df164849ccd16336961525b4", 0x22}, {&(0x7f0000003300)="acb7f1c06ef4f4a2c3148bde75d11201e89f7a7d9fb34d95aeee5f", 0x1b}, {&(0x7f0000003340)="d2c7d3b5981b9e00f3440643b094854aba1a324dc4fec0fd41189374c24e0d2fe2fb2938771eb26dd3fa56c18e2a31ace27c4df869", 0x35}, {&(0x7f0000003380)}], 0x6, &(0x7f00000034c0)=[@sndinfo={0x20, 0x84, 0x2, {0x0, 0x201, 0xdb, 0x6, r3}}, @dstaddrv4={0x18, 0x84, 0x7, @broadcast}, @dstaddrv6={0x20, 0x84, 0x8, @private1}, @dstaddrv4={0x18, 0x84, 0x7, @multicast2}, @init={0x18, 0x84, 0x0, {0x20, 0xffe0, 0xd6, 0x6}}, @dstaddrv4={0x18, 0x84, 0x7, @dev={0xac, 0x14, 0x14, 0x42}}], 0xa0, 0x10000000}], 0x4, 0x0) getsockopt$inet_sctp_SCTP_MAX_BURST(r2, 0x84, 0x14, &(0x7f0000000180), &(0x7f00000001c0)=0x4) getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000100)=@assoc_value, &(0x7f0000000140)=0x8) [ 2204.304721][T25341] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:34 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x89030000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:34 executing program 2: pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_inet6_SIOCDIFADDR(r0, 0x8936, &(0x7f0000000240)={@private0={0xfc, 0x0, '\x00', 0x1}, 0x60}) r1 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r1, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r1, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='net_prio.prioidx\x00', 0x275a, 0x0) write$binfmt_script(r2, &(0x7f0000000000)=ANY=[], 0x208e24b) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x28011, r2, 0x0) preadv(r2, &(0x7f00000015c0)=[{&(0x7f0000000080)=""/124, 0xffffffff000}], 0x5, 0x0, 0x0) getsockopt$inet_sctp_SCTP_ENABLE_STREAM_RESET(0xffffffffffffffff, 0x84, 0x76, &(0x7f0000003440)={0x0, 0xf523}, &(0x7f0000003480)=0x8) sendmmsg$inet_sctp(r1, &(0x7f0000003580)=[{&(0x7f0000000280)=@in={0x2, 0x4e20, @local}, 0x10, &(0x7f0000001800)=[{&(0x7f0000000300)="a837fd047357cd292f1ab470610a64017392eb3639301ab990ba06827cca0b1c21da0679b1a4cdddaeacda413202660537c1", 0x32}, {&(0x7f0000000340)="8d6432b08508562136d125dd95b2977a6beebf", 0x13}, {&(0x7f0000000380)="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0x1000}, {&(0x7f0000001380)="b0afa61f9c203344f2791282b64f97261f08f5ba36fd5b65e8d34d8ca9f08cc25f7f6e44db9116b1aca5554d0415cc03a3640bea7102501ace336a58e37fa8aa2a4354fde69b4fa06d8fa228a912c64e882bb818d29129f98cfc10b6b11bb8ac93c8f2e4450e78050841d233e4ba2eeffe8ea06c7d76946da589cd922360239e17c6fdb00b8ebaa37d94ef107ecfe9ea49f3fed437c9b11adb5c5ab5bd280e24b03173e26e606e56f23102ec20dc244b74f08a05e065f808bdb618d018d59d1d2a3abed5c6c155597a0bc694d065b8d5e3", 0xd1}, {&(0x7f0000001480)="43b2ac4e34c0360d5093853b55909d2ada6670e82b80c075b251611790609c0db5aa7ad8106466b28ef9d5cf6a54f625c231128069a94949b3b5385920f990fccd1846410324b7bcc023d351541ff3fa8814e3d3d04a4b4706008a9e6412fe6638e26667f860e9e3c000c632df36351618da7a11b8986d7db0b073ea4c7a46b129c25477f29062aac021a9a9c9d4487e43abe731151b02abb4aee1ca5608e29df9f7a343656d69c71afa", 0xaa}, {&(0x7f0000001540)="e312def05cd372de3f4d5d6cc4d68c1c6db9dab8303cb91a4a0c19a01111209a55d77c4635ec1494a48a59b072d7587c4067043e23aa505fb3c22def27c19c3593ac4d103747eeca12fc18419d8d1f69656e202174fe5a01448d90760635e67bc6c78a7096e791ca39778ddaf83b1db71d", 0x71}, {&(0x7f0000001600)="fdc008a1a64656377e938ecaf1437ab7fd6478", 0x13}, {&(0x7f0000001640)="797046b559b02fdab34cd7f53d516164dc8a85f3658bde0effe18149b0559a9593b32cffc44ca1524c7f8a82ac51ec6f7448193025fb44812329e0cd30d0e7dd553d9484c6e5db18fedbd83f7b14624e3c4437812499f399e2d15d0646f1051219fa5748c8b1bf8f7f7c9f11d00563a7ab9b4071414ac44dbe2e0fa850e9bbbb6ddde7fd3ba57dce84e04177a2a6489830dd146f01cf706ba07507d1aa48bd72b62b6660994c526ea90e702f7811a55b3b75691e6b216e24ad12b729b29132e7a6e81e16bf2bd5002a", 0xc9}, {&(0x7f0000001740)="ec7898a42078643ba5e667167aafdc177ceef1550b5f60f17fda7a9aff5421b1c2ed24ee34b6e81dec4e2b0061168253b33aa39367335bc9087e55f623dfaf06212f6d4ae14f0d63df946f05a075a1316f4918f53442425bd636ad8951b28dcf7e718ba7e52638675554e9cc2cb2f073ae2d126222c5a930c186975237cda3b9dd9436996c4e1363ef1bdc01db2fed58a8255dac02f17d91a11e2aef67fb189e0a6ba8c2", 0xa4}], 0x9, 0x0, 0x0, 0x44081}, {&(0x7f00000018c0)=@in6={0xa, 0x4e23, 0x5, @dev={0xfe, 0x80, '\x00', 0x26}, 0x5}, 0x1c, &(0x7f0000001e80)=[{&(0x7f0000001900)="51ffbb7b15219462c97fc43aab6832d7d510296e95d1b155f6a1459313510fea57337573030b1ea4b6fb8e20fbf902a1805f88a33eb4f0869717832cc5f611e54ef157139f41ceabeb9532c6fb0af51d71808cd5b1f6e13540364567777e9fa68e41992db62f3f85c0d2b367fcd1828ef4f8fe9b2ba2075a279dd1342c858c7fdd2dcd45028f271474fc32b4d6a86c3b7829d79dfe38f9e7991e99b7e81982de62551f73489fdf2a73f8145474699aa05938fbb2c9120935321c0d575db00ab2036c141ef5904db3252baa09893a3687e5e21d7f2c2ad1e844c9f3a4013b75ff", 0xe0}, {&(0x7f0000001a00)="3e3af139a3160cc4ce8ac5f3c7dc4cda1ad56b53666dc646888f28dc10f26affb88ad96fbe9ed66792894f0a80627698af15f8f2f1691070c94cc46389209dc2e8fd144d5166c7a7a83bbeed505b987d39c1c13a2d4d07e449db69d7e99ebb050571c29531fe39beccc4f6d325544fc0c87e40b6d67c95deef39b1365c7e0acddf435b055165b848ebc2b3f308c5f96208526342f6ae7364e54ea3b9a1a5b423d49b5566acff141569d94cfef1bb8213345c7c3e032cf1ea240ae108cc2df7035138fe8c1a995c0bbea61dcf6bfc4ea44a73aab6617d2733b7e8db9cf56a61b750a9ecf2b93b544c7ba23fff1716e30083239505", 0xf4}, {&(0x7f0000001b00)="74c2ffbe7c78e3bc19cb087ddc5eb7c33b7e4ce761ae6792e6de0a67a32916c43ad630ac8a9cf79dd2726d0c39f71f4b5b7d22fb77ef73e185dcb965095c1747fbc53e8b4187110394c39f7cf30b90737b188b1f013132bd8567a216a8adc347e2f853e96a133031ebc6644762d0a4eeb8b7e857d77b037b2de1995722f0842e74d1910dd6242510cbd6e913a2805540cf89586b89", 0x95}, {&(0x7f0000001bc0)="7962b0f5b1fcf3aa4c5b3cd29d4b3c3a6d66147008f8f13d9360de504439002d5761888cdcfdc48340da5fea324de21295b3762a272a985eb7e62effff794db9cdb5481933cc51dfc3833c46c45ead957c5a7ab32f7734308e2f896b6991ed68fce2f2b04719560c8878012ebedc45e42903134aa97aec174a4a6a6bf9f4a2bb5918030264757c517a2398cfc5c40486052f7eea9117222a19ae40cb4de3d5f3509b8477416c14", 0xa7}, {&(0x7f0000001c80)="2d2cae7b5c88007a6c07192f88c15084ff7513276a2f83c0ed706538d483187c54011f3dc326fbbf58dbb9bfb988166dbd46b0465f0a4bc032b7adcf96ea7648dfc467cae50333b8bb0816c0c6ebc0fd219c8d389abebfe0cfdc040b91c50a1c4ebbf5a9a92f907776fe4618c39a52871a2923f9e3ba742e284f9d5500d6876fcab63ae3f50633c9241dbeda36824f05d13210869ca3db14f32d01a4bf774ef197655c7d841a9811104e6a988599ca8536304f8a570f9ecfbe", 0xb9}, {&(0x7f0000001d40)="ea9815ddd2420c0e45113d9838585d472e6c7662c5ff1f795f5819857f524dd56bd63b542c723827eca50c91168f1cfed1880f2041673ac213a8d179d9344c0f3e55e2028adcc0b7458d43f98876307dc060a845f82d44c55e5c0b230f72f7fdc4fd8450437ceef7e383fa8c3ecacf1dfb0f026563b6b087d0aa050626fc04cf84f45f471a48e3a8e4327cb9cc6bafcd1bf268984456b4dbac6adfec1ec4652e07c2b1ff8963239f3c2f815f5cc2e7947f0cde953c4fec27662e96328d1fab0a60a692a571853d532ace80d8758a204243b88d6fc6a1313e5e23e7cc2146", 0xde}, {&(0x7f0000001e40)="aa53e012a7573596", 0x8}], 0x7, &(0x7f0000001f00)=[@prinfo={0x18, 0x84, 0x5, {0x0, 0xfff}}], 0x18, 0x4000}, {&(0x7f0000001f40)=@in={0x2, 0x4e21, @remote}, 0x10, &(0x7f00000030c0)=[{&(0x7f0000001f80)="b33fc6b59b1c7ef9f42d177c0d3c9d73c625145621ca6f47d54df74c018cf50c8fb0a77ce63423bc6a542cec85e1ba5a54ab4a5b6edd950c4c6705c5e7578f034c2c09ab803fcc846b6df36eae20416f36aacf8f878949d8a973b70989aa88601f6eb9ece3150f47eebc3d7190b23c9bfd8ea23f4c6e", 0x76}, {&(0x7f0000002000)="34297ab40ed5d983f1b81327fa9da39f12672cb99b34cd00300ed8c3fbbeab96c5f3d11063ace44bf337f3edef5847b1749c8a8ecec0ef6ed0c1fbbc18988932975c8db04e62eeef0d46df6592761450ec22cb9d5e768eb390235ab62cba016c342d6c164191dca2d53807d42ec9a8757d9fe0f2f3564848a12ca23f1beeac4e6152ca1af8b575f3474dd90ef8955a10307bcd5e4639f39e02dd", 0x9a}, {&(0x7f00000020c0)="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0x1000}], 0x3, 0x0, 0x0, 0x20000000}, {&(0x7f0000003100)=@in={0x2, 0x4e24, @empty}, 0x10, &(0x7f00000033c0)=[{&(0x7f0000003140)="5051146c0372a9641ea8341eff737c634429eb77d4eb9b3ac04271591e2f8ca1fe179fcd7db5148d8bfd20fb60121ca74eaaf844001037b113c5622ed0e6bbcdd63e87099d22c8fb842e2f279cdb3087f0d59e4d5f8cc2ee4c6e1ad90fe6d7253ae6b401c89de5bc019df9706dabd234b3f80c9bd7f0422457d8357a1295795952a1c6e1009e64c95de1c12db39dcf56c35a8f308d081fcbe85ba752a0b2a1686e5608ba316b9b140321424a6b0a64877a0524ec7bd59620", 0xb8}, {&(0x7f0000003200)="3b209d5bbeaa46bc2ab47393eb2aedc10e3d4874c1296f286afbe15ba6590f540245d49961732a4bb7cc4878cf41451c8cb3e65e67b2ffc00dcf66c3ec29502b905b2ea6941ead9c1f469e808b066f99488f0448e0d52f5aef682c8295b60b71e79458b1f82cb26c41d35c36e8033c188df7440ab46c3459d854dd610c5bc7a4f575ecc8eee0fff5f0b90010c6d7807dccfbf5d66ad025d651e013102f97c1d71bef32ff9aad0b97f6fca2cd9602", 0xae}, {&(0x7f00000032c0)="e004f63a236010cc4bff992f74b0a0eead4b3f7b75b3df164849ccd16336961525b4", 0x22}, {&(0x7f0000003300)="acb7f1c06ef4f4a2c3148bde75d11201e89f7a7d9fb34d95aeee5f", 0x1b}, {&(0x7f0000003340)="d2c7d3b5981b9e00f3440643b094854aba1a324dc4fec0fd41189374c24e0d2fe2fb2938771eb26dd3fa56c18e2a31ace27c4df869", 0x35}, {&(0x7f0000003380)}], 0x6, &(0x7f00000034c0)=[@sndinfo={0x20, 0x84, 0x2, {0x0, 0x201, 0xdb, 0x6, r3}}, @dstaddrv4={0x18, 0x84, 0x7, @broadcast}, @dstaddrv6={0x20, 0x84, 0x8, @private1}, @dstaddrv4={0x18, 0x84, 0x7, @multicast2}, @init={0x18, 0x84, 0x0, {0x20, 0xffe0, 0xd6, 0x6}}, @dstaddrv4={0x18, 0x84, 0x7, @dev={0xac, 0x14, 0x14, 0x42}}], 0xa0, 0x10000000}], 0x4, 0x0) getsockopt$inet_sctp_SCTP_MAX_BURST(r2, 0x84, 0x14, &(0x7f0000000180), &(0x7f00000001c0)=0x4) getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000100)=@assoc_value, &(0x7f0000000140)=0x8) [ 2204.444771][T25343] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2204.519375][T25343] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2204.543220][T25343] CPU: 1 PID: 25343 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2204.553361][T25343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2204.563452][T25343] Call Trace: [ 2204.566766][T25343] 22:27:34 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x89ffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2204.569748][T25343] dump_stack_lvl+0x125/0x1b0 [ 2204.574481][T25343] sysfs_warn_dup+0x7f/0xa0 [ 2204.579047][T25343] sysfs_create_dir_ns+0x247/0x2a0 [ 2204.584237][T25343] ? sysfs_create_mount_point+0xb0/0xb0 [ 2204.589874][T25343] ? spin_bug+0x1d0/0x1d0 [ 2204.594880][T25343] ? net_namespace+0x12/0x40 [ 2204.599779][T25343] ? device_namespace+0x8d/0xc0 [ 2204.604690][T25343] kobject_add_internal+0x2c8/0x960 [ 2204.610031][T25343] kobject_add+0x16f/0x240 [ 2204.614478][T25343] ? kset_create_and_add+0x190/0x190 [ 2204.619885][T25343] ? do_raw_spin_unlock+0x173/0x230 [ 2204.625114][T25343] ? kobject_put+0xbe/0x440 [ 2204.629653][T25343] device_add+0x289/0x1aa0 [ 2204.634129][T25343] ? device_initialize+0x510/0x510 [ 2204.639270][T25343] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2204.646148][T25343] ? __init_waitqueue_head+0xca/0x150 [ 2204.651552][T25343] netdev_register_kobject+0x183/0x3f0 [ 2204.657061][T25343] register_netdevice+0xbdf/0x14a0 [ 2204.662200][T25343] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2204.668118][T25343] veth_newlink+0x4ef/0xa00 [ 2204.672644][T25343] ? veth_set_features+0x2d0/0x2d0 [ 2204.677774][T25343] ? rtnl_create_link+0xc9c/0xfd0 [ 2204.682875][T25343] ? __rtnl_newlink+0x108a/0x1930 [ 2204.687933][T25343] ? rtnl_newlink+0x67/0xa0 [ 2204.692507][T25343] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2204.697746][T25343] ? alloc_netdev_mqs+0xee6/0x1290 [ 2204.702892][T25343] ? rtnl_create_link+0xa6d/0xfd0 [ 2204.707957][T25343] ? veth_set_features+0x2d0/0x2d0 [ 2204.713176][T25343] __rtnl_newlink+0x1173/0x1930 [ 2204.718056][T25343] ? rtnl_link_unregister+0x260/0x260 [ 2204.723478][T25343] rtnl_newlink+0x67/0xa0 [ 2204.727825][T25343] ? __rtnl_newlink+0x1930/0x1930 [ 2204.732869][T25343] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2204.738027][T25343] ? rtnl_getlink+0xb40/0xb40 [ 2204.742761][T25343] netlink_rcv_skb+0x16b/0x440 [ 2204.747567][T25343] ? rtnl_getlink+0xb40/0xb40 [ 2204.752362][T25343] ? netlink_ack+0x1370/0x1370 [ 2204.757168][T25343] ? netlink_deliver_tap+0x1a0/0xd00 [ 2204.762481][T25343] netlink_unicast+0x53b/0x810 [ 2204.767279][T25343] ? netlink_attachskb+0x880/0x880 [ 2204.772411][T25343] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2204.778323][T25343] ? __phys_addr_symbol+0x30/0x70 [ 2204.783366][T25343] ? __check_object_size+0x323/0x730 [ 2204.788684][T25343] netlink_sendmsg+0x93c/0xe40 [ 2204.793481][T25343] ? netlink_unicast+0x810/0x810 [ 2204.798451][T25343] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2204.803861][T25343] ? netlink_unicast+0x810/0x810 [ 2204.808825][T25343] __sock_sendmsg+0xd5/0x180 [ 2204.813429][T25343] ____sys_sendmsg+0x6ac/0x940 [ 2204.818214][T25343] ? copy_msghdr_from_user+0x10b/0x160 [ 2204.823691][T25343] ? kernel_sendmsg+0x50/0x50 [ 2204.828394][T25343] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2204.834406][T25343] ___sys_sendmsg+0x135/0x1d0 [ 2204.839138][T25343] ? do_recvmmsg+0x740/0x740 [ 2204.843776][T25343] ? find_held_lock+0x2d/0x110 [ 2204.848597][T25343] ? __fget_light+0xe6/0x260 [ 2204.853221][T25343] __sys_sendmsg+0x117/0x1e0 [ 2204.857853][T25343] ? __sys_sendmsg_sock+0x30/0x30 [ 2204.862906][T25343] ? xfd_validate_state+0x5d/0x180 [ 2204.868067][T25343] ? syscall_enter_from_user_mode+0x26/0x80 [ 2204.873990][T25343] do_syscall_64+0x3f/0x110 [ 2204.878534][T25343] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2204.884444][T25343] RIP: 0033:0x7f70d3c7cae9 [ 2204.888878][T25343] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2204.908777][T25343] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2204.917300][T25343] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2204.925335][T25343] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2204.934139][T25343] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2204.942128][T25343] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2204.950109][T25343] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2204.958114][T25343] [ 2204.995004][T25343] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:35 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {0x75}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2205.137041][T25347] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2205.181099][T25349] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:27:35 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x6000, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:35 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000101a500"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:35 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x8f010000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:35 executing program 5: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {0x37}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:35 executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0xe00, 0x0, {0x0, 0x0, 0x0, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:35 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x90ffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2205.329889][T25379] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2205.427127][T25379] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2205.465367][T25379] CPU: 0 PID: 25379 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2205.475503][T25379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2205.485599][T25379] Call Trace: [ 2205.488906][T25379] [ 2205.491865][T25379] dump_stack_lvl+0x125/0x1b0 [ 2205.502080][T25379] sysfs_warn_dup+0x7f/0xa0 [ 2205.506790][T25379] sysfs_create_dir_ns+0x247/0x2a0 [ 2205.511970][T25379] ? sysfs_create_mount_point+0xb0/0xb0 [ 2205.517597][T25379] ? spin_bug+0x1d0/0x1d0 [ 2205.521988][T25379] ? net_namespace+0x12/0x40 [ 2205.526620][T25379] ? device_namespace+0x8d/0xc0 [ 2205.531538][T25379] kobject_add_internal+0x2c8/0x960 [ 2205.536897][T25379] kobject_add+0x16f/0x240 [ 2205.541394][T25379] ? kset_create_and_add+0x190/0x190 [ 2205.546840][T25379] ? do_raw_spin_unlock+0x173/0x230 [ 2205.552194][T25379] ? kobject_put+0xbe/0x440 [ 2205.556769][T25379] device_add+0x289/0x1aa0 [ 2205.561250][T25379] ? device_initialize+0x510/0x510 [ 2205.566417][T25379] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2205.573328][T25379] ? __init_waitqueue_head+0xca/0x150 [ 2205.578774][T25379] netdev_register_kobject+0x183/0x3f0 [ 2205.584415][T25379] register_netdevice+0xbdf/0x14a0 [ 2205.590216][T25379] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2205.596871][T25379] veth_newlink+0x4ef/0xa00 [ 2205.601625][T25379] ? veth_set_features+0x2d0/0x2d0 [ 2205.607051][T25379] ? rtnl_create_link+0xc9c/0xfd0 [ 2205.612135][T25379] ? __rtnl_newlink+0x108a/0x1930 [ 2205.617203][T25379] ? rtnl_newlink+0x67/0xa0 [ 2205.621817][T25379] ? __xdp_rxq_info_reg+0x18c/0x340 22:27:35 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendto$inet(r0, &(0x7f0000000100)="53e24d8aa5db76a467eb0616f5526a483aead2e2a82c8a04b1e77903735573125c27d3a05c3fbbedc46ec9074952e0dc0f39f5de88a8643c654276069047c403f1cd78677b728c6429e9a758ce271f6147f6eb95e1b9f5e0d4df1ee963a6984e038a0370aedca9fa8bafaf649a7858c6b290cf56f4986536ce12705713c754b8e81d3b4a07aa1c70010576d66d0d1adb8913567fa6d4c87c87aea8ce35d71c1b06253ed6d4c210c1fa07afbd3734761dab9c4647f7ea32efaf35a8025179ce8996c8349cfe9137dc548d95795e0aefd4c27315f7c9a5ecc794d3383cbbf078ae911b", 0xe2, 0x4004, &(0x7f0000000200)={0x2, 0x4e24, @multicast1}, 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) [ 2205.627074][T25379] ? alloc_netdev_mqs+0xee6/0x1290 [ 2205.632248][T25379] ? rtnl_create_link+0xa6d/0xfd0 [ 2205.637429][T25379] ? veth_set_features+0x2d0/0x2d0 [ 2205.642593][T25379] __rtnl_newlink+0x1173/0x1930 [ 2205.647574][T25379] ? rtnl_link_unregister+0x260/0x260 [ 2205.653077][T25379] rtnl_newlink+0x67/0xa0 [ 2205.657472][T25379] ? __rtnl_newlink+0x1930/0x1930 [ 2205.662539][T25379] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2205.667612][T25379] ? rtnl_getlink+0xb40/0xb40 [ 2205.672355][T25379] netlink_rcv_skb+0x16b/0x440 22:27:35 executing program 5: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c000000100001027200"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) [ 2205.677170][T25379] ? rtnl_getlink+0xb40/0xb40 [ 2205.684853][T25379] ? netlink_ack+0x1370/0x1370 [ 2205.689700][T25379] ? netlink_deliver_tap+0x1a0/0xd00 [ 2205.695048][T25379] netlink_unicast+0x53b/0x810 [ 2205.699965][T25379] ? netlink_attachskb+0x880/0x880 [ 2205.705162][T25379] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2205.711132][T25379] ? __phys_addr_symbol+0x30/0x70 [ 2205.716218][T25379] ? __check_object_size+0x323/0x730 [ 2205.721572][T25379] netlink_sendmsg+0x93c/0xe40 [ 2205.726409][T25379] ? netlink_unicast+0x810/0x810 [ 2205.731414][T25379] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2205.736755][T25379] ? netlink_unicast+0x810/0x810 [ 2205.741755][T25379] __sock_sendmsg+0xd5/0x180 [ 2205.746395][T25379] ____sys_sendmsg+0x6ac/0x940 [ 2205.751201][T25379] ? copy_msghdr_from_user+0x10b/0x160 [ 2205.756715][T25379] ? kernel_sendmsg+0x50/0x50 [ 2205.761713][T25379] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2205.767759][T25379] ___sys_sendmsg+0x135/0x1d0 [ 2205.772687][T25379] ? do_recvmmsg+0x740/0x740 22:27:35 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f0000000280)={&(0x7f0000000080)=@in={0x2, 0x4e23, @local}, 0x10, &(0x7f00000003c0)=[{&(0x7f00000002c0)="0f", 0x1}, {&(0x7f0000000300)="18dae5e7ceb77435308f8c6ec2bb63f692d269eb120422ec30a9771b4e6c0ee277508a5b86cd5ea992a91d7f90ae61ed544fa6e96198cef94afcdf1af73a4b2a2ebdc59c972ede53d75741f269c777834d1c636e656f80c602428a23d5f9eff2148f4b4fe9071fbf66f5c6e7a0b495b8f916cbcee386867e46287fa496421c4b9e8812e24faac4b77e75139893051c266856b183aa41e6823fd0b000fd64f91313c1911979e40e580986", 0xaa}, {&(0x7f00000000c0)="23293c49ef9f230571c4048c9d419da8d71e", 0x12}], 0x3}, 0xfc) r1 = syz_genetlink_get_family_id$ethtool(&(0x7f0000000140), 0xffffffffffffffff) ioctl$ifreq_SIOCGIFINDEX_team(r0, 0x8933, &(0x7f0000000180)={'team0\x00', 0x0}) sendmsg$ETHTOOL_MSG_STRSET_GET(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x20, r1, 0x800, 0x70bd25, 0x25dfdbfc, {}, [@ETHTOOL_A_STRSET_HEADER={0xc, 0x1, 0x0, 0x1, [@ETHTOOL_A_HEADER_DEV_INDEX={0x8, 0x1, r2}]}]}, 0x20}, 0x1, 0x0, 0x0, 0x4011}, 0x40800) [ 2205.777501][T25379] ? find_held_lock+0x2d/0x110 [ 2205.782364][T25379] ? __fget_light+0xe6/0x260 [ 2205.787971][T25379] __sys_sendmsg+0x117/0x1e0 [ 2205.792626][T25379] ? __sys_sendmsg_sock+0x30/0x30 [ 2205.797706][T25379] ? xfd_validate_state+0x5d/0x180 [ 2205.802906][T25379] ? syscall_enter_from_user_mode+0x26/0x80 [ 2205.808851][T25379] do_syscall_64+0x3f/0x110 [ 2205.813420][T25379] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2205.819450][T25379] RIP: 0033:0x7f70d3c7cae9 [ 2205.823900][T25379] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2205.843645][T25379] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2205.852372][T25379] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2205.860744][T25379] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2205.868843][T25379] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 22:27:35 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x91ffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2205.876855][T25379] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2205.884887][T25379] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2205.892923][T25379] 22:27:36 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x92030000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:36 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x97020000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2206.166654][T25379] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2206.210859][T25386] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. [ 2206.260498][T25386] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2206.289002][T25386] CPU: 0 PID: 25386 Comm: syz-executor.0 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2206.299258][T25386] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2206.309356][T25386] Call Trace: [ 2206.312682][T25386] [ 2206.315651][T25386] dump_stack_lvl+0x125/0x1b0 [ 2206.320563][T25386] sysfs_warn_dup+0x7f/0xa0 [ 2206.325128][T25386] sysfs_create_dir_ns+0x247/0x2a0 [ 2206.330490][T25386] ? sysfs_create_mount_point+0xb0/0xb0 [ 2206.336116][T25386] ? spin_bug+0x1d0/0x1d0 [ 2206.340859][T25386] ? net_namespace+0x12/0x40 [ 2206.345505][T25386] ? device_namespace+0x8d/0xc0 [ 2206.350415][T25386] kobject_add_internal+0x2c8/0x960 [ 2206.355678][T25386] kobject_add+0x16f/0x240 [ 2206.360174][T25386] ? kset_create_and_add+0x190/0x190 [ 2206.365516][T25386] ? do_raw_spin_unlock+0x173/0x230 [ 2206.370766][T25386] ? kobject_put+0xbe/0x440 [ 2206.375423][T25386] device_add+0x289/0x1aa0 [ 2206.379899][T25386] ? device_initialize+0x510/0x510 [ 2206.385075][T25386] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2206.392159][T25386] ? __init_waitqueue_head+0xca/0x150 [ 2206.398376][T25386] netdev_register_kobject+0x183/0x3f0 [ 2206.403985][T25386] register_netdevice+0xbdf/0x14a0 [ 2206.409260][T25386] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2206.415226][T25386] veth_newlink+0x4ef/0xa00 [ 2206.419802][T25386] ? veth_set_features+0x2d0/0x2d0 [ 2206.424965][T25386] ? rtnl_create_link+0xc9c/0xfd0 [ 2206.430054][T25386] ? __rtnl_newlink+0x108a/0x1930 [ 2206.435138][T25386] ? rtnl_newlink+0x67/0xa0 [ 2206.439753][T25386] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2206.445015][T25386] ? alloc_netdev_mqs+0xee6/0x1290 [ 2206.450287][T25386] ? rtnl_create_link+0xa6d/0xfd0 [ 2206.455383][T25386] ? veth_set_features+0x2d0/0x2d0 [ 2206.460545][T25386] __rtnl_newlink+0x1173/0x1930 [ 2206.465456][T25386] ? rtnl_link_unregister+0x260/0x260 [ 2206.470914][T25386] rtnl_newlink+0x67/0xa0 [ 2206.475293][T25386] ? __rtnl_newlink+0x1930/0x1930 [ 2206.480360][T25386] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2206.485487][T25386] ? rtnl_getlink+0xb40/0xb40 [ 2206.490581][T25386] netlink_rcv_skb+0x16b/0x440 [ 2206.495408][T25386] ? rtnl_getlink+0xb40/0xb40 [ 2206.500134][T25386] ? netlink_ack+0x1370/0x1370 [ 2206.505232][T25386] ? netlink_deliver_tap+0x1a0/0xd00 [ 2206.510579][T25386] netlink_unicast+0x53b/0x810 [ 2206.515397][T25386] ? netlink_attachskb+0x880/0x880 [ 2206.520561][T25386] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2206.526603][T25386] ? __phys_addr_symbol+0x30/0x70 [ 2206.531683][T25386] ? __check_object_size+0x323/0x730 [ 2206.537041][T25386] netlink_sendmsg+0x93c/0xe40 [ 2206.541873][T25386] ? netlink_unicast+0x810/0x810 [ 2206.546875][T25386] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2206.552268][T25386] ? netlink_unicast+0x810/0x810 [ 2206.557254][T25386] __sock_sendmsg+0xd5/0x180 [ 2206.562413][T25386] ____sys_sendmsg+0x6ac/0x940 [ 2206.567221][T25386] ? copy_msghdr_from_user+0x10b/0x160 [ 2206.572721][T25386] ? kernel_sendmsg+0x50/0x50 [ 2206.577447][T25386] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2206.584712][T25386] ___sys_sendmsg+0x135/0x1d0 [ 2206.589449][T25386] ? do_recvmmsg+0x740/0x740 [ 2206.594103][T25386] ? find_held_lock+0x2d/0x110 [ 2206.599054][T25386] ? __fget_light+0xe6/0x260 [ 2206.603702][T25386] __sys_sendmsg+0x117/0x1e0 [ 2206.608339][T25386] ? __sys_sendmsg_sock+0x30/0x30 [ 2206.613399][T25386] ? xfd_validate_state+0x5d/0x180 [ 2206.618602][T25386] ? syscall_enter_from_user_mode+0x26/0x80 [ 2206.624641][T25386] do_syscall_64+0x3f/0x110 [ 2206.629200][T25386] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2206.635137][T25386] RIP: 0033:0x7fedc2e7cae9 [ 2206.639581][T25386] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2206.659267][T25386] RSP: 002b:00007fedc3aef0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2206.667814][T25386] RAX: ffffffffffffffda RBX: 00007fedc2f9bf80 RCX: 00007fedc2e7cae9 [ 2206.675833][T25386] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2206.683846][T25386] RBP: 00007fedc2ec847a R08: 0000000000000000 R09: 0000000000000000 [ 2206.691846][T25386] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2206.699937][T25386] R13: 000000000000000b R14: 00007fedc2f9bf80 R15: 00007ffdb0854d38 [ 2206.707964][T25386] [ 2206.753463][T25386] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2206.800511][T25387] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2206.812118][T25387] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2206.822023][T25387] CPU: 1 PID: 25387 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2206.832149][T25387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2206.842329][T25387] Call Trace: [ 2206.845636][T25387] [ 2206.848592][T25387] dump_stack_lvl+0x125/0x1b0 [ 2206.853327][T25387] sysfs_warn_dup+0x7f/0xa0 [ 2206.857899][T25387] sysfs_create_dir_ns+0x247/0x2a0 [ 2206.863073][T25387] ? sysfs_create_mount_point+0xb0/0xb0 [ 2206.868674][T25387] ? spin_bug+0x1d0/0x1d0 [ 2206.873058][T25387] ? net_namespace+0x12/0x40 [ 2206.877687][T25387] ? device_namespace+0x8d/0xc0 [ 2206.882609][T25387] kobject_add_internal+0x2c8/0x960 [ 2206.887868][T25387] kobject_add+0x16f/0x240 [ 2206.892336][T25387] ? kset_create_and_add+0x190/0x190 [ 2206.897680][T25387] ? do_raw_spin_unlock+0x173/0x230 [ 2206.902938][T25387] ? kobject_put+0xbe/0x440 [ 2206.907498][T25387] device_add+0x289/0x1aa0 [ 2206.911970][T25387] ? device_initialize+0x510/0x510 [ 2206.917156][T25387] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2206.924066][T25387] ? __init_waitqueue_head+0xca/0x150 [ 2206.929543][T25387] netdev_register_kobject+0x183/0x3f0 [ 2206.935057][T25387] register_netdevice+0xbdf/0x14a0 [ 2206.940228][T25387] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2206.946343][T25387] ? validate_linkmsg+0x6fc/0x9c0 [ 2206.951525][T25387] br_dev_newlink+0x27/0x110 [ 2206.956184][T25387] ? br_changelink+0x1760/0x1760 [ 2206.961205][T25387] __rtnl_newlink+0x1173/0x1930 [ 2206.966119][T25387] ? rtnl_link_unregister+0x260/0x260 [ 2206.971572][T25387] rtnl_newlink+0x67/0xa0 [ 2206.975942][T25387] ? __rtnl_newlink+0x1930/0x1930 [ 2206.981004][T25387] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2206.986066][T25387] ? rtnl_getlink+0xb40/0xb40 [ 2206.990811][T25387] netlink_rcv_skb+0x16b/0x440 [ 2206.995704][T25387] ? rtnl_getlink+0xb40/0xb40 [ 2207.000419][T25387] ? netlink_ack+0x1370/0x1370 [ 2207.005250][T25387] ? netlink_deliver_tap+0x1a0/0xd00 [ 2207.010601][T25387] netlink_unicast+0x53b/0x810 [ 2207.015416][T25387] ? netlink_attachskb+0x880/0x880 [ 2207.020564][T25387] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2207.026500][T25387] ? __phys_addr_symbol+0x30/0x70 [ 2207.031564][T25387] ? __check_object_size+0x323/0x730 [ 2207.036955][T25387] netlink_sendmsg+0x93c/0xe40 [ 2207.041768][T25387] ? netlink_unicast+0x810/0x810 [ 2207.046752][T25387] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2207.052075][T25387] ? netlink_unicast+0x810/0x810 [ 2207.057057][T25387] __sock_sendmsg+0xd5/0x180 [ 2207.061701][T25387] ____sys_sendmsg+0x6ac/0x940 [ 2207.066696][T25387] ? copy_msghdr_from_user+0x10b/0x160 [ 2207.072200][T25387] ? kernel_sendmsg+0x50/0x50 [ 2207.076922][T25387] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2207.082968][T25387] ___sys_sendmsg+0x135/0x1d0 [ 2207.087688][T25387] ? do_recvmmsg+0x740/0x740 [ 2207.092316][T25387] ? find_held_lock+0x2d/0x110 [ 2207.097250][T25387] ? __fget_light+0xe6/0x260 [ 2207.101895][T25387] __sys_sendmsg+0x117/0x1e0 [ 2207.106544][T25387] ? __sys_sendmsg_sock+0x30/0x30 [ 2207.111696][T25387] ? xfd_validate_state+0x5d/0x180 [ 2207.116967][T25387] ? syscall_enter_from_user_mode+0x26/0x80 [ 2207.122912][T25387] do_syscall_64+0x3f/0x110 [ 2207.127474][T25387] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2207.133408][T25387] RIP: 0033:0x7f874a47cae9 [ 2207.137853][T25387] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2207.157498][T25387] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2207.166125][T25387] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2207.174133][T25387] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2207.182400][T25387] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2207.190660][T25387] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2207.198672][T25387] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2207.206708][T25387] [ 2207.234355][T25387] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2207.286363][T25390] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2207.299320][T25391] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.0'. 22:27:37 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x6558, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:37 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000102a500"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:37 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x9a030000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:37 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0xa00, 0x0, {0x0, 0x0, 0x0, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:37 executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c000000100001007200"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:37 executing program 5: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c000000100001027200"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:37 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x9cffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:37 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0x9fffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2207.599381][T25422] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2207.621108][T25422] CPU: 1 PID: 25422 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2207.631598][T25422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2207.641774][T25422] Call Trace: [ 2207.645100][T25422] [ 2207.648241][T25422] dump_stack_lvl+0x125/0x1b0 [ 2207.652974][T25422] sysfs_warn_dup+0x7f/0xa0 [ 2207.657551][T25422] sysfs_create_dir_ns+0x247/0x2a0 [ 2207.662739][T25422] ? sysfs_create_mount_point+0xb0/0xb0 [ 2207.668350][T25422] ? spin_bug+0x1d0/0x1d0 [ 2207.672743][T25422] ? net_namespace+0x12/0x40 [ 2207.677428][T25422] ? device_namespace+0x8d/0xc0 [ 2207.682335][T25422] kobject_add_internal+0x2c8/0x960 [ 2207.687576][T25422] kobject_add+0x16f/0x240 [ 2207.692019][T25422] ? kset_create_and_add+0x190/0x190 [ 2207.697374][T25422] ? do_raw_spin_unlock+0x173/0x230 [ 2207.702606][T25422] ? kobject_put+0xbe/0x440 [ 2207.707408][T25422] device_add+0x289/0x1aa0 [ 2207.711853][T25422] ? device_initialize+0x510/0x510 [ 2207.716995][T25422] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2207.723874][T25422] ? __init_waitqueue_head+0xca/0x150 [ 2207.729279][T25422] netdev_register_kobject+0x183/0x3f0 [ 2207.734766][T25422] register_netdevice+0xbdf/0x14a0 [ 2207.739987][T25422] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2207.745920][T25422] veth_newlink+0x4ef/0xa00 [ 2207.750641][T25422] ? veth_set_features+0x2d0/0x2d0 [ 2207.755789][T25422] ? rtnl_create_link+0xc9c/0xfd0 [ 2207.760860][T25422] ? __rtnl_newlink+0x108a/0x1930 [ 2207.765919][T25422] ? rtnl_newlink+0x67/0xa0 [ 2207.770512][T25422] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2207.775749][T25422] ? alloc_netdev_mqs+0xee6/0x1290 [ 2207.780894][T25422] ? rtnl_create_link+0xa6d/0xfd0 [ 2207.786038][T25422] ? veth_set_features+0x2d0/0x2d0 [ 2207.791165][T25422] __rtnl_newlink+0x1173/0x1930 [ 2207.796048][T25422] ? rtnl_link_unregister+0x260/0x260 [ 2207.801468][T25422] rtnl_newlink+0x67/0xa0 [ 2207.805820][T25422] ? __rtnl_newlink+0x1930/0x1930 [ 2207.810857][T25422] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2207.816333][T25422] ? rtnl_getlink+0xb40/0xb40 [ 2207.821046][T25422] netlink_rcv_skb+0x16b/0x440 [ 2207.825836][T25422] ? rtnl_getlink+0xb40/0xb40 [ 2207.830530][T25422] ? netlink_ack+0x1370/0x1370 [ 2207.835348][T25422] ? netlink_deliver_tap+0x1a0/0xd00 [ 2207.840657][T25422] netlink_unicast+0x53b/0x810 [ 2207.845468][T25422] ? netlink_attachskb+0x880/0x880 [ 2207.850600][T25422] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2207.856556][T25422] ? __phys_addr_symbol+0x30/0x70 [ 2207.861612][T25422] ? __check_object_size+0x323/0x730 [ 2207.866939][T25422] netlink_sendmsg+0x93c/0xe40 [ 2207.871842][T25422] ? netlink_unicast+0x810/0x810 [ 2207.877181][T25422] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2207.882506][T25422] ? netlink_unicast+0x810/0x810 [ 2207.887483][T25422] __sock_sendmsg+0xd5/0x180 [ 2207.892628][T25422] ____sys_sendmsg+0x6ac/0x940 [ 2207.898708][T25422] ? copy_msghdr_from_user+0x10b/0x160 [ 2207.904226][T25422] ? kernel_sendmsg+0x50/0x50 [ 2207.908921][T25422] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2207.914933][T25422] ___sys_sendmsg+0x135/0x1d0 [ 2207.919638][T25422] ? do_recvmmsg+0x740/0x740 [ 2207.924242][T25422] ? find_held_lock+0x2d/0x110 [ 2207.929054][T25422] ? __fget_light+0xe6/0x260 [ 2207.933692][T25422] __sys_sendmsg+0x117/0x1e0 [ 2207.938326][T25422] ? __sys_sendmsg_sock+0x30/0x30 [ 2207.943380][T25422] ? xfd_validate_state+0x5d/0x180 [ 2207.948544][T25422] ? syscall_enter_from_user_mode+0x26/0x80 [ 2207.954460][T25422] do_syscall_64+0x3f/0x110 [ 2207.959014][T25422] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2207.964951][T25422] RIP: 0033:0x7f70d3c7cae9 [ 2207.969389][T25422] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2207.989021][T25422] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2207.997903][T25422] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2208.006000][T25422] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2208.014083][T25422] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2208.022157][T25422] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2208.030144][T25422] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2208.039507][T25422] 22:27:38 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xa0ffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2208.132262][T25422] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:38 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xb0ffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:38 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1, 0x0, 0x0, 0xfdffffff}, 0xfc) [ 2208.307626][T25428] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2208.322551][T25428] CPU: 1 PID: 25428 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2208.332853][T25428] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2208.343030][T25428] Call Trace: [ 2208.346341][T25428] [ 2208.349303][T25428] dump_stack_lvl+0x125/0x1b0 22:27:38 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xb7000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2208.354067][T25428] sysfs_warn_dup+0x7f/0xa0 [ 2208.358630][T25428] sysfs_create_dir_ns+0x247/0x2a0 [ 2208.363803][T25428] ? sysfs_create_mount_point+0xb0/0xb0 [ 2208.369496][T25428] ? spin_bug+0x1d0/0x1d0 [ 2208.373883][T25428] ? net_namespace+0x12/0x40 [ 2208.378521][T25428] ? device_namespace+0x8d/0xc0 [ 2208.383443][T25428] kobject_add_internal+0x2c8/0x960 [ 2208.388879][T25428] kobject_add+0x16f/0x240 [ 2208.393352][T25428] ? kset_create_and_add+0x190/0x190 [ 2208.398697][T25428] ? do_raw_spin_unlock+0x173/0x230 [ 2208.403965][T25428] ? kobject_put+0xbe/0x440 [ 2208.408536][T25428] device_add+0x289/0x1aa0 [ 2208.412999][T25428] ? device_initialize+0x510/0x510 [ 2208.418175][T25428] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2208.425096][T25428] ? __init_waitqueue_head+0xca/0x150 [ 2208.430531][T25428] netdev_register_kobject+0x183/0x3f0 [ 2208.436023][T25428] register_netdevice+0xbdf/0x14a0 [ 2208.441337][T25428] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2208.447246][T25428] ? validate_linkmsg+0x6fc/0x9c0 [ 2208.452303][T25428] br_dev_newlink+0x27/0x110 [ 2208.456920][T25428] ? br_changelink+0x1760/0x1760 [ 2208.461881][T25428] __rtnl_newlink+0x1173/0x1930 [ 2208.466761][T25428] ? rtnl_link_unregister+0x260/0x260 [ 2208.472179][T25428] rtnl_newlink+0x67/0xa0 [ 2208.476531][T25428] ? __rtnl_newlink+0x1930/0x1930 [ 2208.481571][T25428] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2208.486534][T25428] ? rtnl_getlink+0xb40/0xb40 [ 2208.491242][T25428] netlink_rcv_skb+0x16b/0x440 [ 2208.496028][T25428] ? rtnl_getlink+0xb40/0xb40 [ 2208.500734][T25428] ? netlink_ack+0x1370/0x1370 [ 2208.505534][T25428] ? netlink_deliver_tap+0x1a0/0xd00 [ 2208.510937][T25428] netlink_unicast+0x53b/0x810 [ 2208.515753][T25428] ? netlink_attachskb+0x880/0x880 [ 2208.521067][T25428] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2208.527584][T25428] ? __phys_addr_symbol+0x30/0x70 [ 2208.532729][T25428] ? __check_object_size+0x323/0x730 [ 2208.538053][T25428] netlink_sendmsg+0x93c/0xe40 [ 2208.543190][T25428] ? netlink_unicast+0x810/0x810 [ 2208.548152][T25428] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2208.553450][T25428] ? netlink_unicast+0x810/0x810 [ 2208.558414][T25428] __sock_sendmsg+0xd5/0x180 [ 2208.563106][T25428] ____sys_sendmsg+0x6ac/0x940 [ 2208.567885][T25428] ? copy_msghdr_from_user+0x10b/0x160 [ 2208.573361][T25428] ? kernel_sendmsg+0x50/0x50 [ 2208.578061][T25428] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2208.584160][T25428] ___sys_sendmsg+0x135/0x1d0 [ 2208.588869][T25428] ? do_recvmmsg+0x740/0x740 [ 2208.593474][T25428] ? find_held_lock+0x2d/0x110 [ 2208.598296][T25428] ? __fget_light+0xe6/0x260 [ 2208.602915][T25428] __sys_sendmsg+0x117/0x1e0 [ 2208.607609][T25428] ? __sys_sendmsg_sock+0x30/0x30 [ 2208.612652][T25428] ? __do_sys_rseq+0x750/0x750 [ 2208.617538][T25428] ? syscall_enter_from_user_mode+0x26/0x80 [ 2208.623539][T25428] do_syscall_64+0x3f/0x110 [ 2208.628073][T25428] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2208.633988][T25428] RIP: 0033:0x7f874a47cae9 [ 2208.638418][T25428] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2208.658052][T25428] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2208.666672][T25428] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2208.674918][T25428] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2208.682896][T25428] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2208.690964][T25428] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2208.699465][T25428] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2208.707485][T25428] [ 2208.724081][T25428] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2208.827861][T25429] __nla_validate_parse: 9 callbacks suppressed [ 2208.827882][T25429] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.2'. [ 2208.844616][T25431] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. 22:27:38 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x8100, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:38 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000103a500"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:38 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000280)='cgroup.controllers\x00', 0x275a, 0x0) write$cgroup_int(r1, &(0x7f0000000000), 0xffd2) setsockopt$SO_BINDTODEVICE(r1, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) bind$isdn_base(0xffffffffffffffff, &(0x7f0000000100)={0x22, 0x0, 0x2, 0x2, 0x3c}, 0x6) sendmsg$inet_sctp(r0, &(0x7f0000000200)={&(0x7f0000000040)=@in6={0xa, 0x4e20, 0x10000, @remote, 0xbfc}, 0x1c, &(0x7f00000000c0)=[{&(0x7f0000000140)="141c84549d500d09815b4b5de6cb8d102ffee52272857beb49d506e7634ce30c1de0d532fb4e951e7678983971268630b11f4521df43dddf0812e3f29d280bc7ca11150a76aa422f3e18ff0700006160819abeca476a71b7dec660067adf9b3e19889b15fe2eb21d072727361d6e7ffa985c7e6a100a2c00"/132, 0x84}], 0x1}, 0x800c0fe) 22:27:38 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xc0ffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:38 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1, 0x0, 0x0, 0x8000000}, 0xfc) [ 2208.902047][T25434] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2208.935350][T25439] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. 22:27:39 executing program 5: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c000000100001027200"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:39 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1, 0x0, 0x0, 0x7000000}, 0xfc) [ 2209.040372][T25457] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. 22:27:39 executing program 2: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0xff000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2209.110636][T25457] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2209.144766][T25457] CPU: 1 PID: 25457 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2209.154925][T25457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2209.165020][T25457] Call Trace: [ 2209.168341][T25457] [ 2209.171292][T25457] dump_stack_lvl+0x125/0x1b0 [ 2209.176032][T25457] sysfs_warn_dup+0x7f/0xa0 [ 2209.180603][T25457] sysfs_create_dir_ns+0x247/0x2a0 [ 2209.185777][T25457] ? sysfs_create_mount_point+0xb0/0xb0 [ 2209.191474][T25457] ? spin_bug+0x1d0/0x1d0 [ 2209.195871][T25457] ? net_namespace+0x12/0x40 [ 2209.200632][T25457] ? device_namespace+0x8d/0xc0 [ 2209.205872][T25457] kobject_add_internal+0x2c8/0x960 [ 2209.211120][T25457] kobject_add+0x16f/0x240 [ 2209.215588][T25457] ? kset_create_and_add+0x190/0x190 [ 2209.221024][T25457] ? do_raw_spin_unlock+0x173/0x230 [ 2209.226270][T25457] ? kobject_put+0xbe/0x440 [ 2209.230822][T25457] device_add+0x289/0x1aa0 [ 2209.235279][T25457] ? device_initialize+0x510/0x510 [ 2209.240421][T25457] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2209.247323][T25457] ? __init_waitqueue_head+0xca/0x150 [ 2209.252755][T25457] netdev_register_kobject+0x183/0x3f0 [ 2209.258267][T25457] register_netdevice+0xbdf/0x14a0 [ 2209.263409][T25457] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2209.269332][T25457] veth_newlink+0x4ef/0xa00 [ 2209.273860][T25457] ? veth_set_features+0x2d0/0x2d0 [ 2209.279173][T25457] ? rtnl_create_link+0xc9c/0xfd0 [ 2209.284298][T25457] ? __rtnl_newlink+0x108a/0x1930 [ 2209.289334][T25457] ? rtnl_newlink+0x67/0xa0 [ 2209.293901][T25457] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2209.299221][T25457] ? alloc_netdev_mqs+0xee6/0x1290 [ 2209.304453][T25457] ? rtnl_create_link+0xa6d/0xfd0 [ 2209.309516][T25457] ? veth_set_features+0x2d0/0x2d0 [ 2209.314908][T25457] __rtnl_newlink+0x1173/0x1930 [ 2209.319791][T25457] ? rtnl_link_unregister+0x260/0x260 [ 2209.325211][T25457] rtnl_newlink+0x67/0xa0 [ 2209.329555][T25457] ? __rtnl_newlink+0x1930/0x1930 [ 2209.334594][T25457] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2209.339549][T25457] ? rtnl_getlink+0xb40/0xb40 [ 2209.344256][T25457] netlink_rcv_skb+0x16b/0x440 [ 2209.349039][T25457] ? rtnl_getlink+0xb40/0xb40 [ 2209.353731][T25457] ? netlink_ack+0x1370/0x1370 [ 2209.358561][T25457] ? netlink_deliver_tap+0x1a0/0xd00 [ 2209.363959][T25457] netlink_unicast+0x53b/0x810 [ 2209.368747][T25457] ? netlink_attachskb+0x880/0x880 [ 2209.373876][T25457] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2209.379793][T25457] ? __phys_addr_symbol+0x30/0x70 [ 2209.384836][T25457] ? __check_object_size+0x323/0x730 [ 2209.390223][T25457] netlink_sendmsg+0x93c/0xe40 [ 2209.395023][T25457] ? netlink_unicast+0x810/0x810 [ 2209.399985][T25457] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2209.405288][T25457] ? netlink_unicast+0x810/0x810 [ 2209.410263][T25457] __sock_sendmsg+0xd5/0x180 [ 2209.415052][T25457] ____sys_sendmsg+0x6ac/0x940 [ 2209.419837][T25457] ? copy_msghdr_from_user+0x10b/0x160 [ 2209.425319][T25457] ? kernel_sendmsg+0x50/0x50 [ 2209.430020][T25457] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2209.436035][T25457] ___sys_sendmsg+0x135/0x1d0 [ 2209.440734][T25457] ? do_recvmmsg+0x740/0x740 [ 2209.445378][T25457] ? find_held_lock+0x2d/0x110 [ 2209.450193][T25457] ? __fget_light+0xe6/0x260 [ 2209.454814][T25457] __sys_sendmsg+0x117/0x1e0 [ 2209.459426][T25457] ? __sys_sendmsg_sock+0x30/0x30 [ 2209.464567][T25457] ? xfd_validate_state+0x5d/0x180 [ 2209.469723][T25457] ? syscall_enter_from_user_mode+0x26/0x80 [ 2209.475646][T25457] do_syscall_64+0x3f/0x110 [ 2209.480185][T25457] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2209.486094][T25457] RIP: 0033:0x7f70d3c7cae9 [ 2209.490524][T25457] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2209.510238][T25457] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2209.518696][T25457] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2209.526693][T25457] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2209.534682][T25457] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2209.542685][T25457] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2209.550696][T25457] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2209.558709][T25457] 22:27:39 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xc2000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2209.599064][T25457] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:39 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xc4020000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:39 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0xfa020000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:39 executing program 2: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0xff000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2209.780782][T25464] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. [ 2209.856623][T25465] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2209.883635][T25466] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. [ 2209.932741][T25467] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2209.959357][T25467] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2209.983209][T25467] CPU: 1 PID: 25467 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2209.993357][T25467] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2210.003967][T25467] Call Trace: [ 2210.007362][T25467] [ 2210.010320][T25467] dump_stack_lvl+0x125/0x1b0 [ 2210.015053][T25467] sysfs_warn_dup+0x7f/0xa0 [ 2210.019634][T25467] sysfs_create_dir_ns+0x247/0x2a0 [ 2210.024986][T25467] ? sysfs_create_mount_point+0xb0/0xb0 [ 2210.030585][T25467] ? spin_bug+0x1d0/0x1d0 [ 2210.035050][T25467] ? net_namespace+0x12/0x40 [ 2210.039669][T25467] ? device_namespace+0x8d/0xc0 [ 2210.044573][T25467] kobject_add_internal+0x2c8/0x960 [ 2210.049837][T25467] kobject_add+0x16f/0x240 [ 2210.054311][T25467] ? kset_create_and_add+0x190/0x190 [ 2210.059656][T25467] ? do_raw_spin_unlock+0x173/0x230 [ 2210.064907][T25467] ? kobject_put+0xbe/0x440 [ 2210.069469][T25467] device_add+0x289/0x1aa0 [ 2210.073926][T25467] ? device_initialize+0x510/0x510 [ 2210.079260][T25467] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2210.086155][T25467] ? __init_waitqueue_head+0xca/0x150 [ 2210.091598][T25467] netdev_register_kobject+0x183/0x3f0 [ 2210.097109][T25467] register_netdevice+0xbdf/0x14a0 [ 2210.102265][T25467] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2210.108296][T25467] ? validate_linkmsg+0x6fc/0x9c0 [ 2210.113372][T25467] br_dev_newlink+0x27/0x110 [ 2210.118000][T25467] ? br_changelink+0x1760/0x1760 [ 2210.122980][T25467] __rtnl_newlink+0x1173/0x1930 [ 2210.127971][T25467] ? rtnl_link_unregister+0x260/0x260 [ 2210.133426][T25467] rtnl_newlink+0x67/0xa0 [ 2210.137795][T25467] ? __rtnl_newlink+0x1930/0x1930 [ 2210.142865][T25467] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2210.147855][T25467] ? rtnl_getlink+0xb40/0xb40 [ 2210.152613][T25467] netlink_rcv_skb+0x16b/0x440 [ 2210.157419][T25467] ? rtnl_getlink+0xb40/0xb40 [ 2210.162138][T25467] ? netlink_ack+0x1370/0x1370 [ 2210.166961][T25467] ? netlink_deliver_tap+0x1a0/0xd00 [ 2210.172292][T25467] netlink_unicast+0x53b/0x810 [ 2210.177205][T25467] ? netlink_attachskb+0x880/0x880 [ 2210.182357][T25467] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2210.188291][T25467] ? __phys_addr_symbol+0x30/0x70 [ 2210.193350][T25467] ? __check_object_size+0x323/0x730 [ 2210.198692][T25467] netlink_sendmsg+0x93c/0xe40 [ 2210.203511][T25467] ? netlink_unicast+0x810/0x810 [ 2210.208492][T25467] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2210.213817][T25467] ? netlink_unicast+0x810/0x810 [ 2210.218798][T25467] __sock_sendmsg+0xd5/0x180 [ 2210.223423][T25467] ____sys_sendmsg+0x6ac/0x940 [ 2210.228222][T25467] ? copy_msghdr_from_user+0x10b/0x160 [ 2210.233725][T25467] ? kernel_sendmsg+0x50/0x50 [ 2210.238452][T25467] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2210.244490][T25467] ___sys_sendmsg+0x135/0x1d0 [ 2210.249299][T25467] ? do_recvmmsg+0x740/0x740 [ 2210.253925][T25467] ? find_held_lock+0x2d/0x110 [ 2210.258768][T25467] ? __fget_light+0xe6/0x260 [ 2210.263413][T25467] __sys_sendmsg+0x117/0x1e0 [ 2210.268042][T25467] ? __sys_sendmsg_sock+0x30/0x30 [ 2210.273194][T25467] ? xfd_validate_state+0x5d/0x180 [ 2210.278383][T25467] ? syscall_enter_from_user_mode+0x26/0x80 [ 2210.284319][T25467] do_syscall_64+0x3f/0x110 [ 2210.288867][T25467] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2210.294883][T25467] RIP: 0033:0x7f874a47cae9 [ 2210.299322][T25467] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2210.319143][T25467] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2210.327594][T25467] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2210.335599][T25467] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2210.343596][T25467] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2210.351596][T25467] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2210.359598][T25467] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2210.367622][T25467] [ 2210.398032][T25467] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:40 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1, 0x0, 0x0, 0xfffffffe}, 0xc0fe) 22:27:40 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xca010000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:40 executing program 5: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0xd0ffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:40 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0xe8000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2210.475911][T25477] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:27:40 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000100a600"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:40 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0xf000, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) [ 2210.598652][T25488] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2210.637516][T25488] CPU: 1 PID: 25488 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 22:27:40 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1, 0x0, 0x0, 0xfec00000}, 0xc0fe) 22:27:40 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0xb7000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2210.647656][T25488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2210.657841][T25488] Call Trace: [ 2210.661153][T25488] [ 2210.664112][T25488] dump_stack_lvl+0x125/0x1b0 [ 2210.668936][T25488] sysfs_warn_dup+0x7f/0xa0 [ 2210.673679][T25488] sysfs_create_dir_ns+0x247/0x2a0 [ 2210.678854][T25488] ? sysfs_create_mount_point+0xb0/0xb0 [ 2210.684476][T25488] ? spin_bug+0x1d0/0x1d0 [ 2210.688864][T25488] ? net_namespace+0x12/0x40 [ 2210.693483][T25488] ? device_namespace+0x8d/0xc0 [ 2210.698390][T25488] kobject_add_internal+0x2c8/0x960 [ 2210.703659][T25488] kobject_add+0x16f/0x240 [ 2210.708135][T25488] ? kset_create_and_add+0x190/0x190 [ 2210.713576][T25488] ? do_raw_spin_unlock+0x173/0x230 [ 2210.718923][T25488] ? kobject_put+0xbe/0x440 [ 2210.723502][T25488] device_add+0x289/0x1aa0 [ 2210.727973][T25488] ? device_initialize+0x510/0x510 [ 2210.733152][T25488] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2210.740069][T25488] ? __init_waitqueue_head+0xca/0x150 [ 2210.745507][T25488] netdev_register_kobject+0x183/0x3f0 [ 2210.751032][T25488] register_netdevice+0xbdf/0x14a0 [ 2210.756214][T25488] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2210.762245][T25488] ? validate_linkmsg+0x6fc/0x9c0 [ 2210.767340][T25488] br_dev_newlink+0x27/0x110 [ 2210.771993][T25488] ? br_changelink+0x1760/0x1760 [ 2210.777186][T25488] __rtnl_newlink+0x1173/0x1930 [ 2210.782273][T25488] ? rtnl_link_unregister+0x260/0x260 [ 2210.787755][T25488] rtnl_newlink+0x67/0xa0 [ 2210.792150][T25488] ? __rtnl_newlink+0x1930/0x1930 [ 2210.797481][T25488] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2210.802486][T25488] ? rtnl_getlink+0xb40/0xb40 [ 2210.807343][T25488] netlink_rcv_skb+0x16b/0x440 [ 2210.812240][T25488] ? rtnl_getlink+0xb40/0xb40 [ 2210.816967][T25488] ? netlink_ack+0x1370/0x1370 [ 2210.821811][T25488] ? netlink_deliver_tap+0x1a0/0xd00 [ 2210.827163][T25488] netlink_unicast+0x53b/0x810 [ 2210.831997][T25488] ? netlink_attachskb+0x880/0x880 [ 2210.837175][T25488] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2210.843120][T25488] ? __phys_addr_symbol+0x30/0x70 [ 2210.848191][T25488] ? __check_object_size+0x323/0x730 [ 2210.853540][T25488] netlink_sendmsg+0x93c/0xe40 [ 2210.858357][T25488] ? netlink_unicast+0x810/0x810 [ 2210.863349][T25488] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2210.868678][T25488] ? netlink_unicast+0x810/0x810 [ 2210.873659][T25488] __sock_sendmsg+0xd5/0x180 [ 2210.879948][T25488] ____sys_sendmsg+0x6ac/0x940 [ 2210.885204][T25488] ? copy_msghdr_from_user+0x10b/0x160 [ 2210.890814][T25488] ? kernel_sendmsg+0x50/0x50 [ 2210.896153][T25488] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2210.902286][T25488] ___sys_sendmsg+0x135/0x1d0 [ 2210.907016][T25488] ? do_recvmmsg+0x740/0x740 [ 2210.911741][T25488] ? find_held_lock+0x2d/0x110 [ 2210.916607][T25488] ? __fget_light+0xe6/0x260 [ 2210.921254][T25488] __sys_sendmsg+0x117/0x1e0 [ 2210.925974][T25488] ? __sys_sendmsg_sock+0x30/0x30 [ 2210.931135][T25488] ? xfd_validate_state+0x5d/0x180 [ 2210.936334][T25488] ? syscall_enter_from_user_mode+0x26/0x80 [ 2210.942419][T25488] do_syscall_64+0x3f/0x110 [ 2210.946989][T25488] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2210.952933][T25488] RIP: 0033:0x7f874a47cae9 [ 2210.957469][T25488] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2210.977233][T25488] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2210.985787][T25488] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2210.993806][T25488] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2211.001823][T25488] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2211.009837][T25488] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2211.017845][T25488] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2211.025873][T25488] 22:27:41 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1, 0x0, 0x0, 0x3f000000}, 0xc0fe) 22:27:41 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xd0020000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2211.085546][T25488] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:41 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1, 0x0, 0x0, 0x2c01}, 0xfc) 22:27:41 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1, 0x0, 0x0, 0x1f00}, 0xfc) [ 2211.239496][T25497] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' 22:27:41 executing program 5: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x9a030000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2211.282668][T25497] CPU: 1 PID: 25497 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2211.292900][T25497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2211.302989][T25497] Call Trace: [ 2211.306294][T25497] [ 2211.309257][T25497] dump_stack_lvl+0x125/0x1b0 [ 2211.314042][T25497] sysfs_warn_dup+0x7f/0xa0 [ 2211.318614][T25497] sysfs_create_dir_ns+0x247/0x2a0 [ 2211.323810][T25497] ? sysfs_create_mount_point+0xb0/0xb0 [ 2211.329426][T25497] ? spin_bug+0x1d0/0x1d0 [ 2211.333823][T25497] ? net_namespace+0x12/0x40 [ 2211.338472][T25497] ? device_namespace+0x8d/0xc0 [ 2211.343429][T25497] kobject_add_internal+0x2c8/0x960 [ 2211.348699][T25497] kobject_add+0x16f/0x240 [ 2211.353173][T25497] ? kset_create_and_add+0x190/0x190 [ 2211.358529][T25497] ? do_raw_spin_unlock+0x173/0x230 [ 2211.363958][T25497] ? kobject_put+0xbe/0x440 [ 2211.368541][T25497] device_add+0x289/0x1aa0 [ 2211.373007][T25497] ? device_initialize+0x510/0x510 [ 2211.378177][T25497] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2211.385089][T25497] ? __init_waitqueue_head+0xca/0x150 [ 2211.390525][T25497] netdev_register_kobject+0x183/0x3f0 [ 2211.396129][T25497] register_netdevice+0xbdf/0x14a0 [ 2211.401296][T25497] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2211.407256][T25497] veth_newlink+0x4ef/0xa00 [ 2211.411985][T25497] ? veth_set_features+0x2d0/0x2d0 [ 2211.417237][T25497] ? rtnl_create_link+0xc9c/0xfd0 [ 2211.422317][T25497] ? __rtnl_newlink+0x108a/0x1930 [ 2211.427466][T25497] ? rtnl_newlink+0x67/0xa0 [ 2211.432089][T25497] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2211.437342][T25497] ? alloc_netdev_mqs+0xee6/0x1290 [ 2211.442508][T25497] ? rtnl_create_link+0xa6d/0xfd0 [ 2211.447578][T25497] ? veth_set_features+0x2d0/0x2d0 [ 2211.452821][T25497] __rtnl_newlink+0x1173/0x1930 [ 2211.457819][T25497] ? rtnl_link_unregister+0x260/0x260 [ 2211.463446][T25497] rtnl_newlink+0x67/0xa0 [ 2211.467817][T25497] ? __rtnl_newlink+0x1930/0x1930 [ 2211.472882][T25497] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2211.477864][T25497] ? rtnl_getlink+0xb40/0xb40 [ 2211.482684][T25497] netlink_rcv_skb+0x16b/0x440 [ 2211.487507][T25497] ? rtnl_getlink+0xb40/0xb40 [ 2211.492232][T25497] ? netlink_ack+0x1370/0x1370 [ 2211.497073][T25497] ? netlink_deliver_tap+0x1a0/0xd00 [ 2211.502414][T25497] netlink_unicast+0x53b/0x810 [ 2211.507242][T25497] ? netlink_attachskb+0x880/0x880 [ 2211.512406][T25497] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2211.518356][T25497] ? __phys_addr_symbol+0x30/0x70 [ 2211.523516][T25497] ? __check_object_size+0x323/0x730 [ 2211.529385][T25497] netlink_sendmsg+0x93c/0xe40 22:27:41 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1, 0x0, 0x0, 0x7000000}, 0xc0fe) 22:27:41 executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0xe, 0x0, {0x0, 0x0, 0x0, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) [ 2211.534217][T25497] ? netlink_unicast+0x810/0x810 [ 2211.539384][T25497] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2211.544706][T25497] ? netlink_unicast+0x810/0x810 [ 2211.549954][T25497] __sock_sendmsg+0xd5/0x180 [ 2211.554607][T25497] ____sys_sendmsg+0x6ac/0x940 [ 2211.559454][T25497] ? copy_msghdr_from_user+0x10b/0x160 [ 2211.565071][T25497] ? kernel_sendmsg+0x50/0x50 [ 2211.569798][T25497] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2211.575845][T25497] ___sys_sendmsg+0x135/0x1d0 [ 2211.580580][T25497] ? do_recvmmsg+0x740/0x740 [ 2211.585568][T25497] ? find_held_lock+0x2d/0x110 [ 2211.590565][T25497] ? __fget_light+0xe6/0x260 [ 2211.595230][T25497] __sys_sendmsg+0x117/0x1e0 [ 2211.599874][T25497] ? __sys_sendmsg_sock+0x30/0x30 [ 2211.604939][T25497] ? xfd_validate_state+0x5d/0x180 [ 2211.610138][T25497] ? syscall_enter_from_user_mode+0x26/0x80 [ 2211.616102][T25497] do_syscall_64+0x3f/0x110 [ 2211.620659][T25497] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2211.626602][T25497] RIP: 0033:0x7f70d3c7cae9 [ 2211.631060][T25497] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2211.651062][T25497] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2211.659525][T25497] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2211.667537][T25497] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2211.675982][T25497] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2211.684169][T25497] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2211.692271][T25497] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2211.700352][T25497] 22:27:41 executing program 2: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x85ffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2211.783906][T25497] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:41 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000101a600"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:41 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0xffff, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:41 executing program 5: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c000000100001006e00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:41 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xd0ffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:41 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) r1 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000240)='./cgroup/syz1\x00', 0x200002, 0x0) r2 = openat$cgroup_ro(r1, &(0x7f0000000080)='pids.current\x00', 0xb00000000065808, 0x0) r3 = socket$nl_generic(0x10, 0x3, 0x10) sendfile(r3, r2, 0x0, 0x100000003) ioctl$FS_IOC_FIEMAP(r0, 0xc020660b, &(0x7f0000000140)={0xffffffff, 0x8000000000000001, 0x4, 0xff000000, 0x4, [{0x7ff, 0x0, 0x9f, '\x00', 0x8}, {0x40, 0x100000000, 0x80, '\x00', 0x88}, {0x8, 0x8, 0x1ff, '\x00', 0x3081}, {0x1, 0x0, 0x4, '\x00', 0xa}]}) ioctl$FS_IOC_SETFLAGS(r2, 0x40086602, &(0x7f0000000100)=0x8000) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000800)=[{&(0x7f00000002c0)="0f", 0x1}, {&(0x7f00000008c0)="58addc11331256c0e619833bfffa5f8cbb0e63f5671b68759092b61e54e7ef7383660df0a4455ab761a3029d1f60c6a6292adf42d5179e5afd1495a705d0a0d08be0f7e0", 0x44}, {&(0x7f0000000300)}, {&(0x7f0000000340)="4e3d28ca946905068e6ff0b827b3d8ad6334ab50c0a84d61dd7ef27b8f67dada4a3f6dd9ff487cf6de2f7a90d993e13b62b4017b03ff263ebb2254ed01f9e2eb4037fca99a71ad558ec6702333dded191e2ecfe2329776c051243629f5eddcd3eacb8c69ea5487ce98876bf4af5b845b9701b14bfa68002369e18a3f05aae2b9c1fa656abb14d47865a96b923c4fb10528d4479ec3d33cafb470de862edc658acc76f1c06512", 0xa6}, {&(0x7f0000000400)="9d0f68ea00f2e671e62417487f3a82fb7792c7cf0d7e27308285c7dca8b98f1f50aa26de8c1fc84c7539138849df51637eea9013e7bcb23c3b8bc017ee68780eda8b52da07c10f09b01f3f92c73c838e2293ea461b65a579846f4035656346ebffab7eec53676f0afe45b098c05b6b8a98b017fc353e31674ea2b6d1a6b2025fcdf0b8037ec91b43daf52b07f7efc755a87fea32f6", 0x95}, {&(0x7f00000004c0)="70e91988e428e9c8fae326ce9e128994853356b8a7f6860ecb6857d85eca402953b1eb62b6a9fafd9669ed137712840e407032cde90e6876a037fd998f099cdeb493806652b9569adfffb8279324a2599afe3542158b499bde5f", 0x5a}, {&(0x7f0000000540)="42986082398f1613af012707efecf752809e912f62212f1c4f630dac0dd5bbeb4e93bacaa264c115d6357b60ec31dcf5ff744cce0364c838c43d5254453554ef2c1c66d10c17b58bbcd789cd9185e8cf97beca354a58b56d40f43343452c431685121be67e05bc4fe3e0899610a031b80c4604f094f0848d1240571f12013fd26cebab0af8a53c53cebf60f2b3188d8dc8f450bb369129550dc0f203124b6f6421ccb9633bbcd13121cf0a2ac01e44300bf3c0604089e914c51fc967", 0xbc}, {&(0x7f0000000600)="a54460c6bc50c8bfbdad85f5ff838f0ab00b2d75d5a47293af178678ef11f854ed515dc47b1a6f7b4ae0ec97f13011917bca6b50df2f96808c917578efcd00b20a7e65da564499a6f06a1a0f0b0192784ad660c630656c268dd300265e31e4d9d3266b6a1d994c75b6ebe7ea78a1bd303f46e5956c159ccdc2393f1606a0f1dcbfafc16fb139be789db12ae6bde6828406f555f0ad6fcfeaf23b71476853bf832f0000000000006b39923b5a21492f2c36fcf7f93ffec785f6d2df581b5edfadb0e03dc889b870993e1d31900245f08e5f9b", 0xd2}, {&(0x7f0000000700)="1d80ee1ba5313d4a82c7ff4a3f0530dc7c4e8091cd1b9a7e55ed5231742b7cd9a3ce830db4b0f19d15073aaad5857830a076ef4d5ab11f74e67efe39154f5e0c6ce9881b28381da6167fc449e2737c188b761946b2765468a814771e099538b9a621666b12359517db6308ef9425dc3af9b77ba87559705c169c9fc49312eb0eadfc409d7679e57862daf0438bffb4781bc722cf87d1978f4b445cec5834acdb506636831e618822753b4c39db259928ed7bee8718d41f16bfc7840161095b6de77cd404e74c084659433fc69f55d8293c86e29af4637837544b11e2ecec9397dd24ccba", 0xe4}], 0x1}, 0x4008005) [ 2211.912170][T25522] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2211.963520][T25522] CPU: 0 PID: 25522 Comm: syz-executor.0 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2211.973663][T25522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2211.984117][T25522] Call Trace: [ 2211.987429][T25522] [ 2211.990397][T25522] dump_stack_lvl+0x125/0x1b0 [ 2211.995141][T25522] sysfs_warn_dup+0x7f/0xa0 [ 2211.999795][T25522] sysfs_create_dir_ns+0x247/0x2a0 [ 2212.004968][T25522] ? sysfs_create_mount_point+0xb0/0xb0 [ 2212.010568][T25522] ? spin_bug+0x1d0/0x1d0 [ 2212.014952][T25522] ? net_namespace+0x12/0x40 [ 2212.019581][T25522] ? device_namespace+0x8d/0xc0 [ 2212.024599][T25522] kobject_add_internal+0x2c8/0x960 [ 2212.029868][T25522] kobject_add+0x16f/0x240 [ 2212.034339][T25522] ? kset_create_and_add+0x190/0x190 [ 2212.040041][T25522] ? do_raw_spin_unlock+0x173/0x230 [ 2212.045355][T25522] ? kobject_put+0xbe/0x440 [ 2212.049932][T25522] device_add+0x289/0x1aa0 [ 2212.054390][T25522] ? device_initialize+0x510/0x510 [ 2212.059550][T25522] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2212.066447][T25522] ? __init_waitqueue_head+0xca/0x150 [ 2212.072138][T25522] netdev_register_kobject+0x183/0x3f0 [ 2212.077650][T25522] register_netdevice+0xbdf/0x14a0 [ 2212.082816][T25522] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2212.088792][T25522] veth_newlink+0x4ef/0xa00 [ 2212.093354][T25522] ? veth_set_features+0x2d0/0x2d0 [ 2212.098513][T25522] ? rtnl_create_link+0xc9c/0xfd0 [ 2212.103587][T25522] ? __rtnl_newlink+0x108a/0x1930 [ 2212.108640][T25522] ? rtnl_newlink+0x67/0xa0 [ 2212.113267][T25522] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2212.118527][T25522] ? alloc_netdev_mqs+0xee6/0x1290 [ 2212.123706][T25522] ? rtnl_create_link+0xa6d/0xfd0 [ 2212.128896][T25522] ? veth_set_features+0x2d0/0x2d0 [ 2212.134075][T25522] __rtnl_newlink+0x1173/0x1930 [ 2212.138990][T25522] ? rtnl_link_unregister+0x260/0x260 [ 2212.144444][T25522] rtnl_newlink+0x67/0xa0 [ 2212.148806][T25522] ? __rtnl_newlink+0x1930/0x1930 [ 2212.153868][T25522] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2212.158851][T25522] ? rtnl_getlink+0xb40/0xb40 22:27:42 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xd7030000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2212.163564][T25522] ? find_held_lock+0x2d/0x110 [ 2212.168377][T25522] ? rcu_preempt_deferred_qs_irqrestore+0x684/0xdb0 [ 2212.175365][T25522] ? reacquire_held_locks+0x4b0/0x4b0 [ 2212.180796][T25522] netlink_rcv_skb+0x16b/0x440 [ 2212.185607][T25522] ? rtnl_getlink+0xb40/0xb40 [ 2212.190325][T25522] ? netlink_ack+0x1370/0x1370 [ 2212.195565][T25522] ? _raw_spin_unlock_irqrestore+0x3b/0x70 [ 2212.201620][T25522] ? __rcu_read_unlock+0x2ad/0x570 [ 2212.206867][T25522] ? netlink_deliver_tap+0x1a0/0xd00 [ 2212.212212][T25522] netlink_unicast+0x53b/0x810 [ 2212.217023][T25522] ? netlink_attachskb+0x880/0x880 [ 2212.222173][T25522] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2212.228105][T25522] ? __phys_addr_symbol+0x30/0x70 [ 2212.233169][T25522] ? __check_object_size+0x323/0x730 [ 2212.238512][T25522] netlink_sendmsg+0x93c/0xe40 [ 2212.243336][T25522] ? netlink_unicast+0x810/0x810 [ 2212.248322][T25522] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2212.253656][T25522] ? netlink_unicast+0x810/0x810 [ 2212.258835][T25522] __sock_sendmsg+0xd5/0x180 [ 2212.263470][T25522] ____sys_sendmsg+0x6ac/0x940 [ 2212.268295][T25522] ? copy_msghdr_from_user+0x10b/0x160 [ 2212.273798][T25522] ? kernel_sendmsg+0x50/0x50 [ 2212.278544][T25522] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2212.284594][T25522] ___sys_sendmsg+0x135/0x1d0 [ 2212.289331][T25522] ? do_recvmmsg+0x740/0x740 [ 2212.293972][T25522] ? find_held_lock+0x2d/0x110 [ 2212.298827][T25522] ? __fget_light+0xe6/0x260 [ 2212.303480][T25522] __sys_sendmsg+0x117/0x1e0 [ 2212.308129][T25522] ? __sys_sendmsg_sock+0x30/0x30 22:27:42 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xe4ffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2212.313198][T25522] ? xfd_validate_state+0x5d/0x180 [ 2212.318388][T25522] ? syscall_enter_from_user_mode+0x26/0x80 [ 2212.324335][T25522] do_syscall_64+0x3f/0x110 [ 2212.328905][T25522] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2212.334869][T25522] RIP: 0033:0x7fedc2e7cae9 [ 2212.339321][T25522] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 22:27:42 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1, 0x0, 0x0, 0x4}, 0xfc) [ 2212.359080][T25522] RSP: 002b:00007fedc3aef0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2212.367564][T25522] RAX: ffffffffffffffda RBX: 00007fedc2f9bf80 RCX: 00007fedc2e7cae9 [ 2212.375580][T25522] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2212.383596][T25522] RBP: 00007fedc2ec847a R08: 0000000000000000 R09: 0000000000000000 [ 2212.391601][T25522] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2212.399610][T25522] R13: 000000000000000b R14: 00007fedc2f9bf80 R15: 00007ffdb0854d38 [ 2212.407759][T25522] [ 2212.472481][T25522] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:42 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xe8000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:42 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000280)='cgroup.controllers\x00', 0x275a, 0x0) r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000280)='cgroup.controllers\x00', 0x275a, 0x0) write$cgroup_int(r2, &(0x7f0000000000), 0xffd2) getsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f0000000140)={@local, 0x0}, &(0x7f0000000180)=0x14) ioctl$sock_inet6_SIOCDELRT(r2, 0x890c, &(0x7f00000001c0)={@private1, @private2={0xfc, 0x2, '\x00', 0x1}, @mcast1, 0x3, 0x3, 0x4, 0x100, 0x0, 0x2040020, r3}) write$cgroup_int(r1, &(0x7f0000000000), 0xffd2) setsockopt$inet_int(r1, 0x0, 0x21, &(0x7f0000000100)=0x1, 0x4) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0x0) read(r2, &(0x7f0000000300)=""/165, 0xa5) [ 2212.656349][T25537] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2212.672409][T25537] CPU: 0 PID: 25537 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2212.682802][T25537] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2212.694906][T25537] Call Trace: [ 2212.698297][T25537] [ 2212.701249][T25537] dump_stack_lvl+0x125/0x1b0 [ 2212.706013][T25537] sysfs_warn_dup+0x7f/0xa0 [ 2212.710598][T25537] sysfs_create_dir_ns+0x247/0x2a0 [ 2212.715781][T25537] ? sysfs_create_mount_point+0xb0/0xb0 [ 2212.721390][T25537] ? spin_bug+0x1d0/0x1d0 [ 2212.725785][T25537] ? net_namespace+0x12/0x40 [ 2212.730425][T25537] ? device_namespace+0x8d/0xc0 [ 2212.735336][T25537] kobject_add_internal+0x2c8/0x960 [ 2212.740868][T25537] kobject_add+0x16f/0x240 [ 2212.745344][T25537] ? kset_create_and_add+0x190/0x190 [ 2212.750693][T25537] ? do_raw_spin_unlock+0x173/0x230 [ 2212.755966][T25537] ? kobject_put+0xbe/0x440 [ 2212.760543][T25537] device_add+0x289/0x1aa0 [ 2212.765012][T25537] ? device_initialize+0x510/0x510 [ 2212.770185][T25537] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2212.777622][T25537] ? __init_waitqueue_head+0xca/0x150 [ 2212.783082][T25537] netdev_register_kobject+0x183/0x3f0 [ 2212.788614][T25537] register_netdevice+0xbdf/0x14a0 [ 2212.794358][T25537] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2212.800416][T25537] veth_newlink+0x4ef/0xa00 [ 2212.805095][T25537] ? veth_set_features+0x2d0/0x2d0 [ 2212.810289][T25537] ? rtnl_create_link+0xc9c/0xfd0 [ 2212.815430][T25537] ? __rtnl_newlink+0x108a/0x1930 [ 2212.820614][T25537] ? rtnl_newlink+0x67/0xa0 [ 2212.825249][T25537] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2212.830512][T25537] ? alloc_netdev_mqs+0xee6/0x1290 [ 2212.835693][T25537] ? rtnl_create_link+0xa6d/0xfd0 [ 2212.840784][T25537] ? veth_set_features+0x2d0/0x2d0 [ 2212.845952][T25537] __rtnl_newlink+0x1173/0x1930 [ 2212.850865][T25537] ? rtnl_link_unregister+0x260/0x260 [ 2212.856325][T25537] rtnl_newlink+0x67/0xa0 [ 2212.860701][T25537] ? __rtnl_newlink+0x1930/0x1930 [ 2212.865772][T25537] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2212.870846][T25537] ? rtnl_getlink+0xb40/0xb40 [ 2212.875676][T25537] netlink_rcv_skb+0x16b/0x440 [ 2212.880503][T25537] ? rtnl_getlink+0xb40/0xb40 [ 2212.885227][T25537] ? netlink_ack+0x1370/0x1370 [ 2212.890068][T25537] ? netlink_deliver_tap+0x1a0/0xd00 [ 2212.895498][T25537] netlink_unicast+0x53b/0x810 [ 2212.900330][T25537] ? netlink_attachskb+0x880/0x880 [ 2212.905483][T25537] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2212.911420][T25537] ? __phys_addr_symbol+0x30/0x70 [ 2212.916486][T25537] ? __check_object_size+0x323/0x730 [ 2212.921840][T25537] netlink_sendmsg+0x93c/0xe40 [ 2212.926665][T25537] ? netlink_unicast+0x810/0x810 [ 2212.931658][T25537] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2212.936989][T25537] ? netlink_unicast+0x810/0x810 [ 2212.942150][T25537] __sock_sendmsg+0xd5/0x180 [ 2212.946874][T25537] ____sys_sendmsg+0x6ac/0x940 [ 2212.951770][T25537] ? copy_msghdr_from_user+0x10b/0x160 [ 2212.957287][T25537] ? kernel_sendmsg+0x50/0x50 [ 2212.962019][T25537] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2212.968153][T25537] ___sys_sendmsg+0x135/0x1d0 [ 2212.973051][T25537] ? do_recvmmsg+0x740/0x740 [ 2212.977691][T25537] ? find_held_lock+0x2d/0x110 [ 2212.982541][T25537] ? __fget_light+0xe6/0x260 [ 2212.987212][T25537] __sys_sendmsg+0x117/0x1e0 [ 2212.991861][T25537] ? __sys_sendmsg_sock+0x30/0x30 [ 2212.996948][T25537] ? xfd_validate_state+0x5d/0x180 [ 2213.002331][T25537] ? syscall_enter_from_user_mode+0x26/0x80 [ 2213.008290][T25537] do_syscall_64+0x3f/0x110 [ 2213.012939][T25537] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2213.018973][T25537] RIP: 0033:0x7f70d3c7cae9 [ 2213.023430][T25537] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2213.043167][T25537] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2213.051640][T25537] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2213.059737][T25537] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2213.067841][T25537] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2213.075846][T25537] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2213.083857][T25537] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2213.091886][T25537] [ 2213.121538][T25537] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:43 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1, 0x0, 0x0, 0xa00}, 0xc0fe) 22:27:43 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xea030000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:43 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000102a600"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:43 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:43 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xee030000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:43 executing program 5: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c000000100001006e00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:43 executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000101a600"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:43 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xf0010000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2213.495002][T25573] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2213.533175][T25573] CPU: 0 PID: 25573 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2213.543943][T25573] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2213.554146][T25573] Call Trace: [ 2213.557446][T25573] [ 2213.560407][T25573] dump_stack_lvl+0x125/0x1b0 [ 2213.565138][T25573] sysfs_warn_dup+0x7f/0xa0 [ 2213.569698][T25573] sysfs_create_dir_ns+0x247/0x2a0 [ 2213.574866][T25573] ? sysfs_create_mount_point+0xb0/0xb0 [ 2213.580470][T25573] ? spin_bug+0x1d0/0x1d0 [ 2213.585298][T25573] ? net_namespace+0x12/0x40 [ 2213.590100][T25573] ? device_namespace+0x8d/0xc0 [ 2213.595095][T25573] kobject_add_internal+0x2c8/0x960 [ 2213.600349][T25573] kobject_add+0x16f/0x240 [ 2213.604823][T25573] ? kset_create_and_add+0x190/0x190 [ 2213.610185][T25573] ? do_raw_spin_unlock+0x173/0x230 [ 2213.615441][T25573] ? kobject_put+0xbe/0x440 [ 2213.620009][T25573] device_add+0x289/0x1aa0 [ 2213.624470][T25573] ? device_initialize+0x510/0x510 [ 2213.629648][T25573] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2213.636558][T25573] ? __init_waitqueue_head+0xca/0x150 [ 2213.642075][T25573] netdev_register_kobject+0x183/0x3f0 [ 2213.647596][T25573] register_netdevice+0xbdf/0x14a0 [ 2213.652764][T25573] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2213.658723][T25573] ? validate_linkmsg+0x6fc/0x9c0 [ 2213.663813][T25573] br_dev_newlink+0x27/0x110 [ 2213.668465][T25573] ? br_changelink+0x1760/0x1760 [ 2213.673635][T25573] __rtnl_newlink+0x1173/0x1930 [ 2213.678549][T25573] ? rtnl_link_unregister+0x260/0x260 [ 2213.684007][T25573] rtnl_newlink+0x67/0xa0 [ 2213.688385][T25573] ? __rtnl_newlink+0x1930/0x1930 [ 2213.693747][T25573] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2213.698748][T25573] ? rtnl_getlink+0xb40/0xb40 [ 2213.703501][T25573] netlink_rcv_skb+0x16b/0x440 [ 2213.708323][T25573] ? rtnl_getlink+0xb40/0xb40 [ 2213.713039][T25573] ? netlink_ack+0x1370/0x1370 [ 2213.717878][T25573] ? netlink_deliver_tap+0x1a0/0xd00 [ 2213.723312][T25573] netlink_unicast+0x53b/0x810 [ 2213.728213][T25573] ? netlink_attachskb+0x880/0x880 [ 2213.733371][T25573] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2213.739388][T25573] ? __phys_addr_symbol+0x30/0x70 [ 2213.744455][T25573] ? __check_object_size+0x323/0x730 [ 2213.749800][T25573] netlink_sendmsg+0x93c/0xe40 [ 2213.754634][T25573] ? netlink_unicast+0x810/0x810 [ 2213.759631][T25573] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2213.764962][T25573] ? netlink_unicast+0x810/0x810 [ 2213.770051][T25573] __sock_sendmsg+0xd5/0x180 [ 2213.774692][T25573] ____sys_sendmsg+0x6ac/0x940 [ 2213.779506][T25573] ? copy_msghdr_from_user+0x10b/0x160 [ 2213.785191][T25573] ? kernel_sendmsg+0x50/0x50 [ 2213.790094][T25573] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2213.796148][T25573] ___sys_sendmsg+0x135/0x1d0 [ 2213.800880][T25573] ? do_recvmmsg+0x740/0x740 [ 2213.805516][T25573] ? find_held_lock+0x2d/0x110 [ 2213.810366][T25573] ? __fget_light+0xe6/0x260 [ 2213.815024][T25573] __sys_sendmsg+0x117/0x1e0 [ 2213.819659][T25573] ? __sys_sendmsg_sock+0x30/0x30 [ 2213.824724][T25573] ? xfd_validate_state+0x5d/0x180 [ 2213.829920][T25573] ? syscall_enter_from_user_mode+0x26/0x80 [ 2213.835900][T25573] do_syscall_64+0x3f/0x110 [ 2213.840452][T25573] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2213.846392][T25573] RIP: 0033:0x7f874a47cae9 [ 2213.850927][T25573] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2213.870576][T25573] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2213.879031][T25573] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2213.887034][T25573] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2213.895121][T25573] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2213.903129][T25573] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2213.911123][T25573] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2213.919147][T25573] 22:27:44 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xf5ffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2213.933368][T25573] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:44 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x4, 0x0, {0x0, 0x0, 0x0, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) [ 2214.026381][T25574] __nla_validate_parse: 13 callbacks suppressed [ 2214.026431][T25574] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. 22:27:44 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xfa020000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2214.135323][T25574] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2214.170503][T25574] CPU: 1 PID: 25574 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2214.180640][T25574] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2214.190821][T25574] Call Trace: [ 2214.194123][T25574] [ 2214.197077][T25574] dump_stack_lvl+0x125/0x1b0 [ 2214.201809][T25574] sysfs_warn_dup+0x7f/0xa0 [ 2214.206365][T25574] sysfs_create_dir_ns+0x247/0x2a0 [ 2214.211529][T25574] ? sysfs_create_mount_point+0xb0/0xb0 [ 2214.217127][T25574] ? spin_bug+0x1d0/0x1d0 [ 2214.221514][T25574] ? net_namespace+0x12/0x40 [ 2214.226634][T25574] ? device_namespace+0x8d/0xc0 [ 2214.231721][T25574] kobject_add_internal+0x2c8/0x960 [ 2214.237253][T25574] kobject_add+0x16f/0x240 [ 2214.241805][T25574] ? kset_create_and_add+0x190/0x190 [ 2214.247161][T25574] ? do_raw_spin_unlock+0x173/0x230 [ 2214.252415][T25574] ? kobject_put+0xbe/0x440 [ 2214.256991][T25574] device_add+0x289/0x1aa0 [ 2214.261454][T25574] ? device_initialize+0x510/0x510 [ 2214.266626][T25574] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2214.273704][T25574] ? __init_waitqueue_head+0xca/0x150 [ 2214.279386][T25574] netdev_register_kobject+0x183/0x3f0 [ 2214.284909][T25574] register_netdevice+0xbdf/0x14a0 [ 2214.290075][T25574] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2214.296049][T25574] veth_newlink+0x4ef/0xa00 [ 2214.300615][T25574] ? veth_set_features+0x2d0/0x2d0 [ 2214.305767][T25574] ? rtnl_create_link+0xc9c/0xfd0 [ 2214.310844][T25574] ? __rtnl_newlink+0x108a/0x1930 [ 2214.315901][T25574] ? rtnl_newlink+0x67/0xa0 [ 2214.320514][T25574] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2214.325950][T25574] ? alloc_netdev_mqs+0xee6/0x1290 [ 2214.331121][T25574] ? rtnl_create_link+0xa6d/0xfd0 [ 2214.336207][T25574] ? veth_set_features+0x2d0/0x2d0 [ 2214.341424][T25574] __rtnl_newlink+0x1173/0x1930 [ 2214.346331][T25574] ? rtnl_link_unregister+0x260/0x260 [ 2214.352307][T25574] rtnl_newlink+0x67/0xa0 [ 2214.356676][T25574] ? __rtnl_newlink+0x1930/0x1930 [ 2214.361739][T25574] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2214.366747][T25574] ? rtnl_getlink+0xb40/0xb40 [ 2214.371498][T25574] netlink_rcv_skb+0x16b/0x440 [ 2214.376401][T25574] ? rtnl_getlink+0xb40/0xb40 [ 2214.381127][T25574] ? netlink_ack+0x1370/0x1370 [ 2214.385956][T25574] ? netlink_deliver_tap+0x1a0/0xd00 [ 2214.391380][T25574] netlink_unicast+0x53b/0x810 [ 2214.396562][T25574] ? netlink_attachskb+0x880/0x880 [ 2214.401718][T25574] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2214.407832][T25574] ? __phys_addr_symbol+0x30/0x70 [ 2214.412903][T25574] ? __check_object_size+0x323/0x730 [ 2214.418255][T25574] netlink_sendmsg+0x93c/0xe40 [ 2214.423067][T25574] ? netlink_unicast+0x810/0x810 [ 2214.428054][T25574] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2214.433380][T25574] ? netlink_unicast+0x810/0x810 [ 2214.438378][T25574] __sock_sendmsg+0xd5/0x180 [ 2214.443004][T25574] ____sys_sendmsg+0x6ac/0x940 [ 2214.447801][T25574] ? copy_msghdr_from_user+0x10b/0x160 [ 2214.453471][T25574] ? kernel_sendmsg+0x50/0x50 [ 2214.458191][T25574] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2214.464235][T25574] ___sys_sendmsg+0x135/0x1d0 [ 2214.468962][T25574] ? do_recvmmsg+0x740/0x740 [ 2214.473591][T25574] ? find_held_lock+0x2d/0x110 [ 2214.478433][T25574] ? __fget_light+0xe6/0x260 [ 2214.483091][T25574] __sys_sendmsg+0x117/0x1e0 [ 2214.487735][T25574] ? __sys_sendmsg_sock+0x30/0x30 [ 2214.492891][T25574] ? xfd_validate_state+0x5d/0x180 [ 2214.498086][T25574] ? syscall_enter_from_user_mode+0x26/0x80 [ 2214.504120][T25574] do_syscall_64+0x3f/0x110 [ 2214.508675][T25574] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2214.514624][T25574] RIP: 0033:0x7f70d3c7cae9 [ 2214.519108][T25574] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2214.538761][T25574] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2214.547219][T25574] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2214.555308][T25574] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2214.563318][T25574] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2214.571318][T25574] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2214.579331][T25574] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2214.587749][T25574] 22:27:44 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xff000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2214.621813][T25574] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2214.661169][T25579] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. 22:27:44 executing program 5: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x4, 0x0, {0x0, 0x0, 0x0, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:44 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x3fffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2214.683981][T25581] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. [ 2214.735442][T25583] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2214.793494][T25573] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:27:44 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xff0f0000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:44 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:44 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x20000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2214.836980][T25592] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. 22:27:44 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000103a600"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:45 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffff8000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2214.976343][T25596] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.2'. [ 2215.004854][T25613] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. 22:27:45 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x16000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2215.026560][T25613] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2215.047741][T25613] CPU: 0 PID: 25613 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2215.057878][T25613] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2215.068241][T25613] Call Trace: [ 2215.071549][T25613] [ 2215.074563][T25613] dump_stack_lvl+0x125/0x1b0 [ 2215.079300][T25613] sysfs_warn_dup+0x7f/0xa0 [ 2215.083879][T25613] sysfs_create_dir_ns+0x247/0x2a0 [ 2215.089061][T25613] ? sysfs_create_mount_point+0xb0/0xb0 [ 2215.094678][T25613] ? spin_bug+0x1d0/0x1d0 [ 2215.102117][T25613] ? net_namespace+0x12/0x40 [ 2215.106782][T25613] ? device_namespace+0x8d/0xc0 [ 2215.111695][T25613] kobject_add_internal+0x2c8/0x960 [ 2215.116957][T25613] kobject_add+0x16f/0x240 [ 2215.121425][T25613] ? kset_create_and_add+0x190/0x190 [ 2215.126945][T25613] ? do_raw_spin_unlock+0x173/0x230 [ 2215.132230][T25613] ? kobject_put+0xbe/0x440 [ 2215.136979][T25613] device_add+0x289/0x1aa0 [ 2215.141465][T25613] ? device_initialize+0x510/0x510 [ 2215.146736][T25613] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2215.153794][T25613] ? __init_waitqueue_head+0xca/0x150 [ 2215.159237][T25613] netdev_register_kobject+0x183/0x3f0 [ 2215.164847][T25613] register_netdevice+0xbdf/0x14a0 [ 2215.170030][T25613] ? unregister_netdevice_queue+0x3c0/0x3c0 22:27:45 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1, 0x0, 0xfffffffe}, 0xc0fe) [ 2215.176063][T25613] ? validate_linkmsg+0x6fc/0x9c0 [ 2215.181156][T25613] br_dev_newlink+0x27/0x110 [ 2215.185809][T25613] ? br_changelink+0x1760/0x1760 [ 2215.190799][T25613] __rtnl_newlink+0x1173/0x1930 [ 2215.195719][T25613] ? rtnl_link_unregister+0x260/0x260 [ 2215.201184][T25613] rtnl_newlink+0x67/0xa0 [ 2215.205572][T25613] ? __rtnl_newlink+0x1930/0x1930 [ 2215.210648][T25613] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2215.215638][T25613] ? rtnl_getlink+0xb40/0xb40 [ 2215.220393][T25613] netlink_rcv_skb+0x16b/0x440 [ 2215.225202][T25613] ? rtnl_getlink+0xb40/0xb40 [ 2215.230008][T25613] ? netlink_ack+0x1370/0x1370 [ 2215.234848][T25613] ? netlink_deliver_tap+0x1a0/0xd00 [ 2215.240194][T25613] netlink_unicast+0x53b/0x810 [ 2215.245010][T25613] ? netlink_attachskb+0x880/0x880 [ 2215.250162][T25613] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2215.256099][T25613] ? __phys_addr_symbol+0x30/0x70 [ 2215.261256][T25613] ? __check_object_size+0x323/0x730 [ 2215.266615][T25613] netlink_sendmsg+0x93c/0xe40 [ 2215.271816][T25613] ? netlink_unicast+0x810/0x810 [ 2215.276835][T25613] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2215.283208][T25613] ? netlink_unicast+0x810/0x810 [ 2215.288210][T25613] __sock_sendmsg+0xd5/0x180 [ 2215.292849][T25613] ____sys_sendmsg+0x6ac/0x940 [ 2215.297673][T25613] ? copy_msghdr_from_user+0x10b/0x160 [ 2215.303177][T25613] ? kernel_sendmsg+0x50/0x50 [ 2215.308029][T25613] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2215.314184][T25613] ___sys_sendmsg+0x135/0x1d0 [ 2215.319019][T25613] ? do_recvmmsg+0x740/0x740 [ 2215.323670][T25613] ? find_held_lock+0x2d/0x110 [ 2215.328781][T25613] ? __fget_light+0xe6/0x260 [ 2215.333438][T25613] __sys_sendmsg+0x117/0x1e0 [ 2215.338077][T25613] ? __sys_sendmsg_sock+0x30/0x30 [ 2215.343144][T25613] ? xfd_validate_state+0x5d/0x180 [ 2215.348337][T25613] ? syscall_enter_from_user_mode+0x26/0x80 [ 2215.354285][T25613] do_syscall_64+0x3f/0x110 [ 2215.358837][T25613] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2215.364900][T25613] RIP: 0033:0x7f874a47cae9 [ 2215.369348][T25613] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2215.389004][T25613] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2215.397484][T25613] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2215.405492][T25613] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2215.413488][T25613] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2215.421487][T25613] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2215.429490][T25613] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2215.437613][T25613] [ 2215.469846][T25613] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:45 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x140, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:45 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x9020000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:45 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xfffff000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2215.573277][T25601] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. [ 2215.727991][T25635] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. [ 2215.798162][T25611] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2215.817989][T25611] CPU: 0 PID: 25611 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2215.828219][T25611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2215.838313][T25611] Call Trace: [ 2215.841631][T25611] [ 2215.844588][T25611] dump_stack_lvl+0x125/0x1b0 22:27:45 executing program 5: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c000000100001006900"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:45 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffffff1f}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:45 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x9000000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2215.849581][T25611] sysfs_warn_dup+0x7f/0xa0 [ 2215.854137][T25611] sysfs_create_dir_ns+0x247/0x2a0 [ 2215.859313][T25611] ? sysfs_create_mount_point+0xb0/0xb0 [ 2215.864932][T25611] ? spin_bug+0x1d0/0x1d0 [ 2215.869330][T25611] ? net_namespace+0x12/0x40 [ 2215.873968][T25611] ? device_namespace+0x8d/0xc0 [ 2215.878879][T25611] kobject_add_internal+0x2c8/0x960 [ 2215.884157][T25611] kobject_add+0x16f/0x240 [ 2215.888638][T25611] ? kset_create_and_add+0x190/0x190 [ 2215.893983][T25611] ? do_raw_spin_unlock+0x173/0x230 [ 2215.899239][T25611] ? kobject_put+0xbe/0x440 [ 2215.903814][T25611] device_add+0x289/0x1aa0 [ 2215.908282][T25611] ? device_initialize+0x510/0x510 [ 2215.913455][T25611] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2215.920620][T25611] ? __init_waitqueue_head+0xca/0x150 [ 2215.926053][T25611] netdev_register_kobject+0x183/0x3f0 [ 2215.931578][T25611] register_netdevice+0xbdf/0x14a0 [ 2215.936756][T25611] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2215.942715][T25611] veth_newlink+0x4ef/0xa00 [ 2215.947275][T25611] ? veth_set_features+0x2d0/0x2d0 [ 2215.952433][T25611] ? rtnl_create_link+0xc9c/0xfd0 [ 2215.957605][T25611] ? __rtnl_newlink+0x108a/0x1930 [ 2215.962719][T25611] ? rtnl_newlink+0x67/0xa0 [ 2215.967347][T25611] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2215.972613][T25611] ? alloc_netdev_mqs+0xee6/0x1290 [ 2215.977930][T25611] ? rtnl_create_link+0xa6d/0xfd0 [ 2215.983025][T25611] ? veth_set_features+0x2d0/0x2d0 [ 2215.988275][T25611] __rtnl_newlink+0x1173/0x1930 [ 2215.993189][T25611] ? rtnl_link_unregister+0x260/0x260 [ 2215.998650][T25611] rtnl_newlink+0x67/0xa0 [ 2216.003119][T25611] ? __rtnl_newlink+0x1930/0x1930 [ 2216.008187][T25611] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2216.013198][T25611] ? rtnl_getlink+0xb40/0xb40 [ 2216.017938][T25611] netlink_rcv_skb+0x16b/0x440 [ 2216.022747][T25611] ? rtnl_getlink+0xb40/0xb40 [ 2216.027486][T25611] ? netlink_ack+0x1370/0x1370 [ 2216.032314][T25611] ? netlink_deliver_tap+0x1a0/0xd00 [ 2216.037659][T25611] netlink_unicast+0x53b/0x810 [ 2216.042473][T25611] ? netlink_attachskb+0x880/0x880 [ 2216.047634][T25611] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2216.053572][T25611] ? __phys_addr_symbol+0x30/0x70 [ 2216.058640][T25611] ? __check_object_size+0x323/0x730 [ 2216.064082][T25611] netlink_sendmsg+0x93c/0xe40 [ 2216.068905][T25611] ? netlink_unicast+0x810/0x810 [ 2216.073902][T25611] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2216.079320][T25611] ? netlink_unicast+0x810/0x810 [ 2216.084305][T25611] __sock_sendmsg+0xd5/0x180 [ 2216.088946][T25611] ____sys_sendmsg+0x6ac/0x940 [ 2216.093747][T25611] ? copy_msghdr_from_user+0x10b/0x160 [ 2216.099258][T25611] ? kernel_sendmsg+0x50/0x50 [ 2216.103978][T25611] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2216.110023][T25611] ___sys_sendmsg+0x135/0x1d0 [ 2216.114752][T25611] ? do_recvmmsg+0x740/0x740 [ 2216.119392][T25611] ? find_held_lock+0x2d/0x110 [ 2216.124258][T25611] ? __fget_light+0xe6/0x260 [ 2216.128907][T25611] __sys_sendmsg+0x117/0x1e0 [ 2216.133643][T25611] ? __sys_sendmsg_sock+0x30/0x30 [ 2216.138713][T25611] ? xfd_validate_state+0x5d/0x180 [ 2216.143906][T25611] ? syscall_enter_from_user_mode+0x26/0x80 [ 2216.149859][T25611] do_syscall_64+0x3f/0x110 [ 2216.154417][T25611] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2216.160462][T25611] RIP: 0033:0x7f70d3c7cae9 [ 2216.164912][T25611] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2216.185090][T25611] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2216.193568][T25611] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2216.201637][T25611] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2216.209660][T25611] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2216.217680][T25611] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2216.225955][T25611] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2216.233992][T25611] [ 2216.264659][T25611] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:46 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffffff3f}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:46 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x2}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:46 executing program 2: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0xd002}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:46 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x40000}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:46 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000100a700"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) [ 2216.450907][T25650] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2216.489290][T25650] CPU: 1 PID: 25650 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 22:27:46 executing program 2: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0xc402}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2216.499429][T25650] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2216.509523][T25650] Call Trace: [ 2216.512834][T25650] [ 2216.515790][T25650] dump_stack_lvl+0x125/0x1b0 [ 2216.520523][T25650] sysfs_warn_dup+0x7f/0xa0 [ 2216.525080][T25650] sysfs_create_dir_ns+0x247/0x2a0 [ 2216.530265][T25650] ? sysfs_create_mount_point+0xb0/0xb0 [ 2216.535878][T25650] ? spin_bug+0x1d0/0x1d0 [ 2216.540268][T25650] ? net_namespace+0x12/0x40 [ 2216.544894][T25650] ? device_namespace+0x8d/0xc0 [ 2216.549800][T25650] kobject_add_internal+0x2c8/0x960 [ 2216.555059][T25650] kobject_add+0x16f/0x240 [ 2216.559537][T25650] ? kset_create_and_add+0x190/0x190 [ 2216.564883][T25650] ? do_raw_spin_unlock+0x173/0x230 [ 2216.570150][T25650] ? kobject_put+0xbe/0x440 [ 2216.574717][T25650] device_add+0x289/0x1aa0 [ 2216.579188][T25650] ? device_initialize+0x510/0x510 [ 2216.584714][T25650] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2216.591631][T25650] ? __init_waitqueue_head+0xca/0x150 [ 2216.597063][T25650] netdev_register_kobject+0x183/0x3f0 [ 2216.602679][T25650] register_netdevice+0xbdf/0x14a0 [ 2216.607831][T25650] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2216.613751][T25650] ? validate_linkmsg+0x6fc/0x9c0 [ 2216.619001][T25650] br_dev_newlink+0x27/0x110 [ 2216.623626][T25650] ? br_changelink+0x1760/0x1760 [ 2216.628587][T25650] __rtnl_newlink+0x1173/0x1930 [ 2216.633470][T25650] ? rtnl_link_unregister+0x260/0x260 [ 2216.638897][T25650] rtnl_newlink+0x67/0xa0 [ 2216.643247][T25650] ? __rtnl_newlink+0x1930/0x1930 [ 2216.648288][T25650] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2216.653255][T25650] ? rtnl_getlink+0xb40/0xb40 [ 2216.657971][T25650] netlink_rcv_skb+0x16b/0x440 [ 2216.662755][T25650] ? rtnl_getlink+0xb40/0xb40 [ 2216.667445][T25650] ? netlink_ack+0x1370/0x1370 [ 2216.672260][T25650] ? netlink_deliver_tap+0x1a0/0xd00 [ 2216.677583][T25650] netlink_unicast+0x53b/0x810 [ 2216.682370][T25650] ? netlink_attachskb+0x880/0x880 [ 2216.687498][T25650] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2216.693436][T25650] ? __phys_addr_symbol+0x30/0x70 [ 2216.698482][T25650] ? __check_object_size+0x323/0x730 [ 2216.703813][T25650] netlink_sendmsg+0x93c/0xe40 [ 2216.708619][T25650] ? netlink_unicast+0x810/0x810 [ 2216.713601][T25650] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2216.718919][T25650] ? netlink_unicast+0x810/0x810 [ 2216.723880][T25650] __sock_sendmsg+0xd5/0x180 [ 2216.728657][T25650] ____sys_sendmsg+0x6ac/0x940 [ 2216.733526][T25650] ? copy_msghdr_from_user+0x10b/0x160 [ 2216.739000][T25650] ? kernel_sendmsg+0x50/0x50 [ 2216.743718][T25650] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2216.749849][T25650] ___sys_sendmsg+0x135/0x1d0 [ 2216.754559][T25650] ? do_recvmmsg+0x740/0x740 [ 2216.759172][T25650] ? find_held_lock+0x2d/0x110 [ 2216.763995][T25650] ? __fget_light+0xe6/0x260 [ 2216.768645][T25650] __sys_sendmsg+0x117/0x1e0 [ 2216.773269][T25650] ? __sys_sendmsg_sock+0x30/0x30 [ 2216.778319][T25650] ? xfd_validate_state+0x5d/0x180 [ 2216.783498][T25650] ? syscall_enter_from_user_mode+0x26/0x80 [ 2216.789442][T25650] do_syscall_64+0x3f/0x110 [ 2216.793979][T25650] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2216.799984][T25650] RIP: 0033:0x7f874a47cae9 [ 2216.804409][T25650] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2216.824642][T25650] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2216.833157][T25650] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2216.841223][T25650] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2216.849204][T25650] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2216.857791][T25650] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2216.865787][T25650] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2216.873796][T25650] 22:27:46 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffffff80}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:46 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) getsockopt$inet_sctp_SCTP_MAX_BURST(r0, 0x84, 0x14, &(0x7f0000000100), &(0x7f0000000140)=0x4) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0x0) 22:27:46 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffffff81}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2216.893447][T25650] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:47 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x39}, 0xfc) [ 2216.980534][T25664] sctp: [Deprecated]: syz-executor.5 (pid 25664) Use of int in max_burst socket option. [ 2216.980534][T25664] Use struct sctp_assoc_value instead 22:27:47 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffffff85}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:47 executing program 2: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x7b00}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:47 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x31}, 0xfc) [ 2217.154751][T25653] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2217.176996][T25653] CPU: 0 PID: 25653 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2217.187118][T25653] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2217.197359][T25653] Call Trace: [ 2217.200644][T25653] [ 2217.203680][T25653] dump_stack_lvl+0x125/0x1b0 [ 2217.208387][T25653] sysfs_warn_dup+0x7f/0xa0 [ 2217.212931][T25653] sysfs_create_dir_ns+0x247/0x2a0 [ 2217.218074][T25653] ? sysfs_create_mount_point+0xb0/0xb0 [ 2217.223653][T25653] ? spin_bug+0x1d0/0x1d0 [ 2217.228116][T25653] ? net_namespace+0x12/0x40 [ 2217.232716][T25653] ? device_namespace+0x8d/0xc0 [ 2217.237596][T25653] kobject_add_internal+0x2c8/0x960 [ 2217.242825][T25653] kobject_add+0x16f/0x240 [ 2217.247264][T25653] ? kset_create_and_add+0x190/0x190 [ 2217.252578][T25653] ? do_raw_spin_unlock+0x173/0x230 [ 2217.257806][T25653] ? kobject_put+0xbe/0x440 [ 2217.262339][T25653] device_add+0x289/0x1aa0 [ 2217.266784][T25653] ? device_initialize+0x510/0x510 [ 2217.271921][T25653] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2217.278794][T25653] ? __init_waitqueue_head+0xca/0x150 [ 2217.284192][T25653] netdev_register_kobject+0x183/0x3f0 [ 2217.289676][T25653] register_netdevice+0xbdf/0x14a0 [ 2217.294915][T25653] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2217.300837][T25653] veth_newlink+0x4ef/0xa00 [ 2217.305363][T25653] ? veth_set_features+0x2d0/0x2d0 [ 2217.310493][T25653] ? rtnl_create_link+0xc9c/0xfd0 [ 2217.315540][T25653] ? __rtnl_newlink+0x108a/0x1930 [ 2217.320578][T25653] ? rtnl_newlink+0x67/0xa0 [ 2217.325148][T25653] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2217.330377][T25653] ? alloc_netdev_mqs+0xee6/0x1290 [ 2217.335547][T25653] ? rtnl_create_link+0xa6d/0xfd0 [ 2217.340604][T25653] ? veth_set_features+0x2d0/0x2d0 [ 2217.345731][T25653] __rtnl_newlink+0x1173/0x1930 [ 2217.350619][T25653] ? rtnl_link_unregister+0x260/0x260 [ 2217.356044][T25653] rtnl_newlink+0x67/0xa0 [ 2217.360389][T25653] ? __rtnl_newlink+0x1930/0x1930 [ 2217.365424][T25653] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2217.370467][T25653] ? rtnl_getlink+0xb40/0xb40 [ 2217.375170][T25653] netlink_rcv_skb+0x16b/0x440 [ 2217.379951][T25653] ? rtnl_getlink+0xb40/0xb40 [ 2217.384737][T25653] ? netlink_ack+0x1370/0x1370 [ 2217.389538][T25653] ? netlink_deliver_tap+0x1a0/0xd00 [ 2217.394857][T25653] netlink_unicast+0x53b/0x810 [ 2217.399644][T25653] ? netlink_attachskb+0x880/0x880 [ 2217.404775][T25653] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2217.410706][T25653] ? __phys_addr_symbol+0x30/0x70 [ 2217.415747][T25653] ? __check_object_size+0x323/0x730 [ 2217.421065][T25653] netlink_sendmsg+0x93c/0xe40 [ 2217.425864][T25653] ? netlink_unicast+0x810/0x810 [ 2217.430825][T25653] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2217.436125][T25653] ? netlink_unicast+0x810/0x810 [ 2217.441085][T25653] __sock_sendmsg+0xd5/0x180 [ 2217.445723][T25653] ____sys_sendmsg+0x6ac/0x940 [ 2217.450523][T25653] ? copy_msghdr_from_user+0x10b/0x160 [ 2217.456105][T25653] ? kernel_sendmsg+0x50/0x50 [ 2217.460986][T25653] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2217.467008][T25653] ___sys_sendmsg+0x135/0x1d0 [ 2217.471713][T25653] ? do_recvmmsg+0x740/0x740 [ 2217.476318][T25653] ? find_held_lock+0x2d/0x110 [ 2217.481240][T25653] ? __fget_light+0xe6/0x260 [ 2217.485865][T25653] __sys_sendmsg+0x117/0x1e0 [ 2217.490480][T25653] ? __sys_sendmsg_sock+0x30/0x30 [ 2217.495530][T25653] ? xfd_validate_state+0x5d/0x180 [ 2217.500715][T25653] ? syscall_enter_from_user_mode+0x26/0x80 [ 2217.506641][T25653] do_syscall_64+0x3f/0x110 [ 2217.511174][T25653] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2217.517093][T25653] RIP: 0033:0x7f70d3c7cae9 [ 2217.521605][T25653] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2217.541695][T25653] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2217.550212][T25653] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2217.558193][T25653] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2217.566177][T25653] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2217.574173][T25653] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2217.582155][T25653] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2217.590241][T25653] [ 2217.638927][T25653] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:47 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x3}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:47 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffffff89}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:47 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x35}, 0xc0fe) 22:27:47 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000101a700"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:47 executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x2}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:47 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x33}, 0xc0fe) [ 2217.932632][T25682] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2217.964888][T25682] CPU: 0 PID: 25682 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2217.975032][T25682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2217.985223][T25682] Call Trace: [ 2217.988547][T25682] [ 2217.991614][T25682] dump_stack_lvl+0x125/0x1b0 [ 2217.996526][T25682] sysfs_warn_dup+0x7f/0xa0 [ 2218.001100][T25682] sysfs_create_dir_ns+0x247/0x2a0 [ 2218.006276][T25682] ? sysfs_create_mount_point+0xb0/0xb0 [ 2218.011896][T25682] ? spin_bug+0x1d0/0x1d0 [ 2218.016305][T25682] ? net_namespace+0x12/0x40 [ 2218.020945][T25682] ? device_namespace+0x8d/0xc0 [ 2218.026117][T25682] kobject_add_internal+0x2c8/0x960 [ 2218.031373][T25682] kobject_add+0x16f/0x240 [ 2218.035856][T25682] ? kset_create_and_add+0x190/0x190 [ 2218.041215][T25682] ? do_raw_spin_unlock+0x173/0x230 [ 2218.046475][T25682] ? kobject_put+0xbe/0x440 [ 2218.051049][T25682] device_add+0x289/0x1aa0 [ 2218.055518][T25682] ? device_initialize+0x510/0x510 [ 2218.060869][T25682] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2218.067785][T25682] ? __init_waitqueue_head+0xca/0x150 [ 2218.073261][T25682] netdev_register_kobject+0x183/0x3f0 22:27:48 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffffff90}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:48 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x28}, 0xfc) 22:27:48 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffffff91}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2218.078788][T25682] register_netdevice+0xbdf/0x14a0 [ 2218.083962][T25682] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2218.089906][T25682] ? validate_linkmsg+0x6fc/0x9c0 [ 2218.095005][T25682] br_dev_newlink+0x27/0x110 [ 2218.099656][T25682] ? br_changelink+0x1760/0x1760 [ 2218.104646][T25682] __rtnl_newlink+0x1173/0x1930 [ 2218.109566][T25682] ? rtnl_link_unregister+0x260/0x260 [ 2218.115031][T25682] rtnl_newlink+0x67/0xa0 [ 2218.119512][T25682] ? __rtnl_newlink+0x1930/0x1930 [ 2218.124581][T25682] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2218.129564][T25682] ? rtnl_getlink+0xb40/0xb40 [ 2218.134393][T25682] netlink_rcv_skb+0x16b/0x440 [ 2218.139214][T25682] ? rtnl_getlink+0xb40/0xb40 [ 2218.143947][T25682] ? netlink_ack+0x1370/0x1370 [ 2218.148778][T25682] ? netlink_deliver_tap+0x1a0/0xd00 [ 2218.154127][T25682] netlink_unicast+0x53b/0x810 [ 2218.159033][T25682] ? netlink_attachskb+0x880/0x880 [ 2218.164191][T25682] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2218.170132][T25682] ? __phys_addr_symbol+0x30/0x70 [ 2218.175203][T25682] ? __check_object_size+0x323/0x730 22:27:48 executing program 5: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x4018}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2218.180556][T25682] netlink_sendmsg+0x93c/0xe40 [ 2218.185392][T25682] ? netlink_unicast+0x810/0x810 [ 2218.190386][T25682] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2218.195728][T25682] ? netlink_unicast+0x810/0x810 [ 2218.200725][T25682] __sock_sendmsg+0xd5/0x180 [ 2218.205533][T25682] ____sys_sendmsg+0x6ac/0x940 [ 2218.210354][T25682] ? copy_msghdr_from_user+0x10b/0x160 [ 2218.215859][T25682] ? kernel_sendmsg+0x50/0x50 [ 2218.220593][T25682] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2218.226650][T25682] ___sys_sendmsg+0x135/0x1d0 [ 2218.231388][T25682] ? do_recvmmsg+0x740/0x740 [ 2218.236037][T25682] ? find_held_lock+0x2d/0x110 [ 2218.240887][T25682] ? __fget_light+0xe6/0x260 [ 2218.245547][T25682] __sys_sendmsg+0x117/0x1e0 [ 2218.250195][T25682] ? __sys_sendmsg_sock+0x30/0x30 [ 2218.255267][T25682] ? xfd_validate_state+0x5d/0x180 [ 2218.260462][T25682] ? syscall_enter_from_user_mode+0x26/0x80 [ 2218.266411][T25682] do_syscall_64+0x3f/0x110 [ 2218.270978][T25682] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2218.276916][T25682] RIP: 0033:0x7f874a47cae9 22:27:48 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffffff9c}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2218.281364][T25682] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2218.301100][T25682] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2218.309554][T25682] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2218.317656][T25682] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2218.325668][T25682] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2218.333849][T25682] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2218.341858][T25682] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2218.349893][T25682] 22:27:48 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffffff9f}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2218.443235][T25682] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2218.552567][T25685] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2218.576036][T25685] CPU: 0 PID: 25685 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2218.586867][T25685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2218.597129][T25685] Call Trace: [ 2218.600461][T25685] [ 2218.603421][T25685] dump_stack_lvl+0x125/0x1b0 [ 2218.608153][T25685] sysfs_warn_dup+0x7f/0xa0 [ 2218.612716][T25685] sysfs_create_dir_ns+0x247/0x2a0 [ 2218.617886][T25685] ? sysfs_create_mount_point+0xb0/0xb0 [ 2218.623488][T25685] ? spin_bug+0x1d0/0x1d0 [ 2218.627876][T25685] ? net_namespace+0x12/0x40 [ 2218.632505][T25685] ? device_namespace+0x8d/0xc0 [ 2218.637421][T25685] kobject_add_internal+0x2c8/0x960 [ 2218.642775][T25685] kobject_add+0x16f/0x240 [ 2218.647243][T25685] ? kset_create_and_add+0x190/0x190 [ 2218.652586][T25685] ? do_raw_spin_unlock+0x173/0x230 [ 2218.657924][T25685] ? kobject_put+0xbe/0x440 [ 2218.662488][T25685] device_add+0x289/0x1aa0 [ 2218.666953][T25685] ? device_initialize+0x510/0x510 [ 2218.672130][T25685] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2218.679567][T25685] ? __init_waitqueue_head+0xca/0x150 [ 2218.685100][T25685] netdev_register_kobject+0x183/0x3f0 [ 2218.690691][T25685] register_netdevice+0xbdf/0x14a0 [ 2218.696041][T25685] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2218.701971][T25685] veth_newlink+0x4ef/0xa00 [ 2218.706609][T25685] ? veth_set_features+0x2d0/0x2d0 [ 2218.711742][T25685] ? rtnl_create_link+0xc9c/0xfd0 [ 2218.716793][T25685] ? __rtnl_newlink+0x108a/0x1930 [ 2218.721829][T25685] ? rtnl_newlink+0x67/0xa0 [ 2218.726403][T25685] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2218.731807][T25685] ? alloc_netdev_mqs+0xee6/0x1290 [ 2218.736954][T25685] ? rtnl_create_link+0xa6d/0xfd0 [ 2218.742020][T25685] ? veth_set_features+0x2d0/0x2d0 [ 2218.747150][T25685] __rtnl_newlink+0x1173/0x1930 [ 2218.752034][T25685] ? rtnl_link_unregister+0x260/0x260 [ 2218.757454][T25685] rtnl_newlink+0x67/0xa0 [ 2218.761798][T25685] ? __rtnl_newlink+0x1930/0x1930 [ 2218.766835][T25685] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2218.771877][T25685] ? rtnl_getlink+0xb40/0xb40 [ 2218.776675][T25685] netlink_rcv_skb+0x16b/0x440 [ 2218.781461][T25685] ? rtnl_getlink+0xb40/0xb40 [ 2218.786156][T25685] ? netlink_ack+0x1370/0x1370 [ 2218.790956][T25685] ? netlink_deliver_tap+0x1a0/0xd00 [ 2218.796361][T25685] netlink_unicast+0x53b/0x810 [ 2218.801148][T25685] ? netlink_attachskb+0x880/0x880 [ 2218.806289][T25685] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2218.812219][T25685] ? __phys_addr_symbol+0x30/0x70 [ 2218.817263][T25685] ? __check_object_size+0x323/0x730 [ 2218.822582][T25685] netlink_sendmsg+0x93c/0xe40 [ 2218.827379][T25685] ? netlink_unicast+0x810/0x810 [ 2218.832530][T25685] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2218.837949][T25685] ? netlink_unicast+0x810/0x810 [ 2218.842920][T25685] __sock_sendmsg+0xd5/0x180 [ 2218.847548][T25685] ____sys_sendmsg+0x6ac/0x940 [ 2218.852323][T25685] ? copy_msghdr_from_user+0x10b/0x160 [ 2218.857796][T25685] ? kernel_sendmsg+0x50/0x50 [ 2218.862492][T25685] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2218.868503][T25685] ___sys_sendmsg+0x135/0x1d0 [ 2218.873207][T25685] ? do_recvmmsg+0x740/0x740 [ 2218.877874][T25685] ? find_held_lock+0x2d/0x110 [ 2218.882893][T25685] ? __fget_light+0xe6/0x260 [ 2218.887519][T25685] __sys_sendmsg+0x117/0x1e0 [ 2218.892131][T25685] ? __sys_sendmsg_sock+0x30/0x30 [ 2218.897183][T25685] ? xfd_validate_state+0x5d/0x180 [ 2218.902427][T25685] ? syscall_enter_from_user_mode+0x26/0x80 [ 2218.908429][T25685] do_syscall_64+0x3f/0x110 [ 2218.912956][T25685] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2218.918867][T25685] RIP: 0033:0x7f70d3c7cae9 [ 2218.923294][T25685] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2218.942940][T25685] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2218.951381][T25685] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2218.959371][T25685] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2218.967437][T25685] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2218.975447][T25685] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2218.983434][T25685] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2218.991448][T25685] [ 2219.011728][T25685] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2219.095483][T25688] __nla_validate_parse: 13 callbacks suppressed [ 2219.095502][T25688] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. [ 2219.141436][T25688] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2219.151728][T25688] CPU: 1 PID: 25688 Comm: syz-executor.0 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2219.161835][T25688] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2219.172278][T25688] Call Trace: [ 2219.175580][T25688] [ 2219.178530][T25688] dump_stack_lvl+0x125/0x1b0 [ 2219.183256][T25688] sysfs_warn_dup+0x7f/0xa0 [ 2219.188538][T25688] sysfs_create_dir_ns+0x247/0x2a0 [ 2219.193704][T25688] ? sysfs_create_mount_point+0xb0/0xb0 [ 2219.199747][T25688] ? spin_bug+0x1d0/0x1d0 [ 2219.204130][T25688] ? net_namespace+0x12/0x40 [ 2219.208751][T25688] ? device_namespace+0x8d/0xc0 [ 2219.213654][T25688] kobject_add_internal+0x2c8/0x960 [ 2219.218911][T25688] kobject_add+0x16f/0x240 [ 2219.223397][T25688] ? kset_create_and_add+0x190/0x190 [ 2219.228739][T25688] ? do_raw_spin_unlock+0x173/0x230 [ 2219.233986][T25688] ? kobject_put+0xbe/0x440 [ 2219.238551][T25688] device_add+0x289/0x1aa0 [ 2219.243015][T25688] ? device_initialize+0x510/0x510 [ 2219.248178][T25688] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2219.255088][T25688] ? __init_waitqueue_head+0xca/0x150 [ 2219.260504][T25688] netdev_register_kobject+0x183/0x3f0 [ 2219.265994][T25688] register_netdevice+0xbdf/0x14a0 [ 2219.271571][T25688] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2219.277492][T25688] veth_newlink+0x4ef/0xa00 [ 2219.282200][T25688] ? veth_set_features+0x2d0/0x2d0 [ 2219.287348][T25688] ? rtnl_create_link+0xc9c/0xfd0 [ 2219.292492][T25688] ? __rtnl_newlink+0x108a/0x1930 [ 2219.297616][T25688] ? rtnl_newlink+0x67/0xa0 [ 2219.302205][T25688] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2219.307433][T25688] ? alloc_netdev_mqs+0xee6/0x1290 [ 2219.312574][T25688] ? rtnl_create_link+0xa6d/0xfd0 [ 2219.317626][T25688] ? veth_set_features+0x2d0/0x2d0 [ 2219.322761][T25688] __rtnl_newlink+0x1173/0x1930 [ 2219.327899][T25688] ? rtnl_link_unregister+0x260/0x260 [ 2219.333316][T25688] rtnl_newlink+0x67/0xa0 [ 2219.337656][T25688] ? __rtnl_newlink+0x1930/0x1930 [ 2219.342699][T25688] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2219.347660][T25688] ? rtnl_getlink+0xb40/0xb40 [ 2219.352368][T25688] netlink_rcv_skb+0x16b/0x440 [ 2219.357157][T25688] ? rtnl_getlink+0xb40/0xb40 [ 2219.361850][T25688] ? netlink_ack+0x1370/0x1370 [ 2219.366660][T25688] ? netlink_deliver_tap+0x1a0/0xd00 [ 2219.371976][T25688] netlink_unicast+0x53b/0x810 [ 2219.376761][T25688] ? netlink_attachskb+0x880/0x880 [ 2219.381895][T25688] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2219.387810][T25688] ? __phys_addr_symbol+0x30/0x70 [ 2219.392942][T25688] ? __check_object_size+0x323/0x730 [ 2219.398256][T25688] netlink_sendmsg+0x93c/0xe40 [ 2219.403045][T25688] ? netlink_unicast+0x810/0x810 [ 2219.408012][T25688] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2219.413315][T25688] ? netlink_unicast+0x810/0x810 [ 2219.418982][T25688] __sock_sendmsg+0xd5/0x180 [ 2219.423772][T25688] ____sys_sendmsg+0x6ac/0x940 [ 2219.428560][T25688] ? copy_msghdr_from_user+0x10b/0x160 [ 2219.434039][T25688] ? kernel_sendmsg+0x50/0x50 [ 2219.438840][T25688] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2219.444857][T25688] ___sys_sendmsg+0x135/0x1d0 [ 2219.449557][T25688] ? do_recvmmsg+0x740/0x740 [ 2219.454258][T25688] ? find_held_lock+0x2d/0x110 [ 2219.459160][T25688] ? __fget_light+0xe6/0x260 [ 2219.463775][T25688] __sys_sendmsg+0x117/0x1e0 [ 2219.468470][T25688] ? __sys_sendmsg_sock+0x30/0x30 [ 2219.473517][T25688] ? xfd_validate_state+0x5d/0x180 [ 2219.478756][T25688] ? syscall_enter_from_user_mode+0x26/0x80 [ 2219.484671][T25688] do_syscall_64+0x3f/0x110 [ 2219.489196][T25688] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2219.495105][T25688] RIP: 0033:0x7fedc2e7cae9 [ 2219.499535][T25688] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2219.520288][T25688] RSP: 002b:00007fedc3aef0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2219.528842][T25688] RAX: ffffffffffffffda RBX: 00007fedc2f9bf80 RCX: 00007fedc2e7cae9 [ 2219.536834][T25688] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2219.544823][T25688] RBP: 00007fedc2ec847a R08: 0000000000000000 R09: 0000000000000000 [ 2219.552815][T25688] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2219.560886][T25688] R13: 000000000000000b R14: 00007fedc2f9bf80 R15: 00007ffdb0854d38 [ 2219.568974][T25688] [ 2219.593857][T25688] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2219.622298][T25689] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.0'. [ 2219.635866][T25702] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2219.650878][T25682] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:27:49 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x4}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:49 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000102a700"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:49 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x30}, 0xc0fe) 22:27:49 executing program 5: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x3903}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:49 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffffffa0}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:49 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x29}, 0xc0fe) 22:27:49 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffffffb0}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2219.807510][T25719] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. 22:27:49 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x1840}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2219.878744][T25719] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2219.919545][T25719] CPU: 0 PID: 25719 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2219.929686][T25719] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2219.939782][T25719] Call Trace: [ 2219.943087][T25719] [ 2219.946045][T25719] dump_stack_lvl+0x125/0x1b0 [ 2219.950774][T25719] sysfs_warn_dup+0x7f/0xa0 [ 2219.955393][T25719] sysfs_create_dir_ns+0x247/0x2a0 [ 2219.960574][T25719] ? sysfs_create_mount_point+0xb0/0xb0 22:27:50 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffffffc0}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2219.966189][T25719] ? spin_bug+0x1d0/0x1d0 [ 2219.970591][T25719] ? net_namespace+0x12/0x40 [ 2219.975229][T25719] ? device_namespace+0x8d/0xc0 [ 2219.980186][T25719] kobject_add_internal+0x2c8/0x960 [ 2219.985650][T25719] kobject_add+0x16f/0x240 [ 2219.990313][T25719] ? kset_create_and_add+0x190/0x190 [ 2219.995684][T25719] ? do_raw_spin_unlock+0x173/0x230 [ 2220.000951][T25719] ? kobject_put+0xbe/0x440 [ 2220.005531][T25719] device_add+0x289/0x1aa0 [ 2220.010012][T25719] ? device_initialize+0x510/0x510 [ 2220.015198][T25719] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2220.022121][T25719] ? __init_waitqueue_head+0xca/0x150 [ 2220.027555][T25719] netdev_register_kobject+0x183/0x3f0 [ 2220.033360][T25719] register_netdevice+0xbdf/0x14a0 [ 2220.038529][T25719] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2220.044491][T25719] veth_newlink+0x4ef/0xa00 [ 2220.049054][T25719] ? veth_set_features+0x2d0/0x2d0 [ 2220.054211][T25719] ? rtnl_create_link+0xc9c/0xfd0 [ 2220.059391][T25719] ? __rtnl_newlink+0x108a/0x1930 [ 2220.064465][T25719] ? rtnl_newlink+0x67/0xa0 [ 2220.069084][T25719] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2220.074366][T25719] ? alloc_netdev_mqs+0xee6/0x1290 [ 2220.079539][T25719] ? rtnl_create_link+0xa6d/0xfd0 [ 2220.084643][T25719] ? veth_set_features+0x2d0/0x2d0 [ 2220.089795][T25719] __rtnl_newlink+0x1173/0x1930 [ 2220.094711][T25719] ? rtnl_link_unregister+0x260/0x260 [ 2220.100267][T25719] rtnl_newlink+0x67/0xa0 [ 2220.104721][T25719] ? __rtnl_newlink+0x1930/0x1930 [ 2220.109798][T25719] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2220.114790][T25719] ? rtnl_getlink+0xb40/0xb40 22:27:50 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffffffd0}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:50 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffffffb0}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2220.119530][T25719] netlink_rcv_skb+0x16b/0x440 [ 2220.124348][T25719] ? rtnl_getlink+0xb40/0xb40 [ 2220.129071][T25719] ? netlink_ack+0x1370/0x1370 [ 2220.133920][T25719] ? netlink_deliver_tap+0x1a0/0xd00 [ 2220.139261][T25719] netlink_unicast+0x53b/0x810 [ 2220.144076][T25719] ? netlink_attachskb+0x880/0x880 [ 2220.149227][T25719] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2220.155170][T25719] ? __phys_addr_symbol+0x30/0x70 [ 2220.160343][T25719] ? __check_object_size+0x323/0x730 [ 2220.165697][T25719] netlink_sendmsg+0x93c/0xe40 [ 2220.170531][T25719] ? netlink_unicast+0x810/0x810 [ 2220.175525][T25719] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2220.180854][T25719] ? netlink_unicast+0x810/0x810 [ 2220.185934][T25719] __sock_sendmsg+0xd5/0x180 [ 2220.190567][T25719] ____sys_sendmsg+0x6ac/0x940 [ 2220.195377][T25719] ? copy_msghdr_from_user+0x10b/0x160 [ 2220.201007][T25719] ? kernel_sendmsg+0x50/0x50 [ 2220.205731][T25719] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2220.211783][T25719] ___sys_sendmsg+0x135/0x1d0 [ 2220.216518][T25719] ? do_recvmmsg+0x740/0x740 [ 2220.221243][T25719] ? find_held_lock+0x2d/0x110 [ 2220.226096][T25719] ? __fget_light+0xe6/0x260 [ 2220.230746][T25719] __sys_sendmsg+0x117/0x1e0 [ 2220.235387][T25719] ? __sys_sendmsg_sock+0x30/0x30 [ 2220.240461][T25719] ? xfd_validate_state+0x5d/0x180 [ 2220.245649][T25719] ? syscall_enter_from_user_mode+0x26/0x80 [ 2220.251605][T25719] do_syscall_64+0x3f/0x110 [ 2220.256168][T25719] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2220.262112][T25719] RIP: 0033:0x7f70d3c7cae9 22:27:50 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffffffe4}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2220.266580][T25719] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2220.286230][T25719] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2220.294687][T25719] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2220.302697][T25719] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2220.310706][T25719] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2220.318716][T25719] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2220.326989][T25719] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2220.335030][T25719] [ 2220.450504][T25719] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2220.488992][T25725] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2220.505283][T25725] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2220.529195][T25725] CPU: 0 PID: 25725 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2220.539416][T25725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2220.549513][T25725] Call Trace: [ 2220.552824][T25725] [ 2220.555782][T25725] dump_stack_lvl+0x125/0x1b0 [ 2220.560522][T25725] sysfs_warn_dup+0x7f/0xa0 [ 2220.565104][T25725] sysfs_create_dir_ns+0x247/0x2a0 [ 2220.570312][T25725] ? sysfs_create_mount_point+0xb0/0xb0 [ 2220.575926][T25725] ? spin_bug+0x1d0/0x1d0 [ 2220.580312][T25725] ? net_namespace+0x12/0x40 [ 2220.585031][T25725] ? device_namespace+0x8d/0xc0 [ 2220.589934][T25725] kobject_add_internal+0x2c8/0x960 [ 2220.595176][T25725] kobject_add+0x16f/0x240 [ 2220.599625][T25725] ? kset_create_and_add+0x190/0x190 [ 2220.604951][T25725] ? do_raw_spin_unlock+0x173/0x230 [ 2220.610179][T25725] ? kobject_put+0xbe/0x440 [ 2220.614726][T25725] device_add+0x289/0x1aa0 [ 2220.619202][T25725] ? device_initialize+0x510/0x510 [ 2220.624354][T25725] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2220.631316][T25725] ? __init_waitqueue_head+0xca/0x150 [ 2220.636726][T25725] netdev_register_kobject+0x183/0x3f0 [ 2220.642216][T25725] register_netdevice+0xbdf/0x14a0 [ 2220.647352][T25725] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2220.653442][T25725] ? validate_linkmsg+0x6fc/0x9c0 [ 2220.658587][T25725] br_dev_newlink+0x27/0x110 [ 2220.663210][T25725] ? br_changelink+0x1760/0x1760 [ 2220.668266][T25725] __rtnl_newlink+0x1173/0x1930 [ 2220.673587][T25725] ? rtnl_link_unregister+0x260/0x260 [ 2220.679102][T25725] rtnl_newlink+0x67/0xa0 [ 2220.683528][T25725] ? __rtnl_newlink+0x1930/0x1930 [ 2220.688588][T25725] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2220.693635][T25725] ? rtnl_getlink+0xb40/0xb40 [ 2220.698339][T25725] netlink_rcv_skb+0x16b/0x440 [ 2220.703152][T25725] ? rtnl_getlink+0xb40/0xb40 [ 2220.707876][T25725] ? netlink_ack+0x1370/0x1370 [ 2220.712678][T25725] ? netlink_deliver_tap+0x1a0/0xd00 [ 2220.717992][T25725] netlink_unicast+0x53b/0x810 [ 2220.722804][T25725] ? netlink_attachskb+0x880/0x880 [ 2220.727937][T25725] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2220.734053][T25725] ? __phys_addr_symbol+0x30/0x70 [ 2220.739113][T25725] ? __check_object_size+0x323/0x730 [ 2220.744550][T25725] netlink_sendmsg+0x93c/0xe40 [ 2220.749353][T25725] ? netlink_unicast+0x810/0x810 [ 2220.754335][T25725] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2220.759642][T25725] ? netlink_unicast+0x810/0x810 [ 2220.764618][T25725] __sock_sendmsg+0xd5/0x180 [ 2220.769267][T25725] ____sys_sendmsg+0x6ac/0x940 [ 2220.774056][T25725] ? copy_msghdr_from_user+0x10b/0x160 [ 2220.780172][T25725] ? kernel_sendmsg+0x50/0x50 [ 2220.784939][T25725] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2220.790969][T25725] ___sys_sendmsg+0x135/0x1d0 [ 2220.795703][T25725] ? do_recvmmsg+0x740/0x740 [ 2220.800442][T25725] ? find_held_lock+0x2d/0x110 [ 2220.805280][T25725] ? __fget_light+0xe6/0x260 [ 2220.809919][T25725] __sys_sendmsg+0x117/0x1e0 [ 2220.814633][T25725] ? __sys_sendmsg_sock+0x30/0x30 [ 2220.819678][T25725] ? xfd_validate_state+0x5d/0x180 [ 2220.824929][T25725] ? syscall_enter_from_user_mode+0x26/0x80 [ 2220.830966][T25725] do_syscall_64+0x3f/0x110 [ 2220.835500][T25725] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2220.841433][T25725] RIP: 0033:0x7f874a47cae9 [ 2220.846056][T25725] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2220.865690][T25725] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2220.874209][T25725] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2220.882196][T25725] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2220.890219][T25725] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2220.898220][T25725] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2220.906209][T25725] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2220.914212][T25725] [ 2220.928120][T25725] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2221.019797][T25726] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. 22:27:51 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x5}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:51 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x27}, 0xc0fe) 22:27:51 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x25}, 0xc0fe) 22:27:51 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x1701}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:51 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xfffffff5}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:51 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000103a700"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:51 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {0x7, 0x1, 0xb, 0x9, 0x0, 0x0, 0xffffffff}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:51 executing program 2: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x1085}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2221.185951][T25754] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2221.226676][T25754] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2221.251656][T25754] CPU: 1 PID: 25754 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2221.261884][T25754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2221.272012][T25754] Call Trace: [ 2221.275425][T25754] [ 2221.278389][T25754] dump_stack_lvl+0x125/0x1b0 [ 2221.283320][T25754] sysfs_warn_dup+0x7f/0xa0 [ 2221.287968][T25754] sysfs_create_dir_ns+0x247/0x2a0 [ 2221.293172][T25754] ? sysfs_create_mount_point+0xb0/0xb0 [ 2221.298783][T25754] ? spin_bug+0x1d0/0x1d0 [ 2221.303180][T25754] ? net_namespace+0x12/0x40 [ 2221.307806][T25754] ? device_namespace+0x8d/0xc0 [ 2221.312711][T25754] kobject_add_internal+0x2c8/0x960 [ 2221.318088][T25754] kobject_add+0x16f/0x240 22:27:51 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x2}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2221.322562][T25754] ? kset_create_and_add+0x190/0x190 [ 2221.327924][T25754] ? do_raw_spin_unlock+0x173/0x230 [ 2221.333190][T25754] ? kobject_put+0xbe/0x440 [ 2221.337847][T25754] device_add+0x289/0x1aa0 [ 2221.342323][T25754] ? device_initialize+0x510/0x510 [ 2221.347842][T25754] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2221.354839][T25754] ? __init_waitqueue_head+0xca/0x150 [ 2221.360262][T25754] netdev_register_kobject+0x183/0x3f0 [ 2221.365774][T25754] register_netdevice+0xbdf/0x14a0 [ 2221.371011][T25754] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2221.377019][T25754] ? validate_linkmsg+0x6fc/0x9c0 [ 2221.382090][T25754] br_dev_newlink+0x27/0x110 [ 2221.386718][T25754] ? br_changelink+0x1760/0x1760 [ 2221.391776][T25754] __rtnl_newlink+0x1173/0x1930 [ 2221.396660][T25754] ? rtnl_link_unregister+0x260/0x260 [ 2221.402085][T25754] rtnl_newlink+0x67/0xa0 [ 2221.406433][T25754] ? __rtnl_newlink+0x1930/0x1930 [ 2221.411568][T25754] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2221.416609][T25754] ? rtnl_getlink+0xb40/0xb40 [ 2221.421315][T25754] netlink_rcv_skb+0x16b/0x440 [ 2221.426130][T25754] ? rtnl_getlink+0xb40/0xb40 [ 2221.430910][T25754] ? netlink_ack+0x1370/0x1370 [ 2221.435715][T25754] ? netlink_deliver_tap+0x1a0/0xd00 [ 2221.441137][T25754] netlink_unicast+0x53b/0x810 [ 2221.445923][T25754] ? netlink_attachskb+0x880/0x880 [ 2221.451054][T25754] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2221.457054][T25754] ? __phys_addr_symbol+0x30/0x70 [ 2221.462120][T25754] ? __check_object_size+0x323/0x730 [ 2221.467500][T25754] netlink_sendmsg+0x93c/0xe40 [ 2221.472309][T25754] ? netlink_unicast+0x810/0x810 [ 2221.477279][T25754] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2221.482677][T25754] ? netlink_unicast+0x810/0x810 [ 2221.487726][T25754] __sock_sendmsg+0xd5/0x180 [ 2221.492525][T25754] ____sys_sendmsg+0x6ac/0x940 [ 2221.497315][T25754] ? copy_msghdr_from_user+0x10b/0x160 [ 2221.502884][T25754] ? kernel_sendmsg+0x50/0x50 [ 2221.507673][T25754] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2221.513698][T25754] ___sys_sendmsg+0x135/0x1d0 [ 2221.518406][T25754] ? do_recvmmsg+0x740/0x740 [ 2221.523014][T25754] ? find_held_lock+0x2d/0x110 [ 2221.527831][T25754] ? __fget_light+0xe6/0x260 [ 2221.532550][T25754] __sys_sendmsg+0x117/0x1e0 [ 2221.537186][T25754] ? __sys_sendmsg_sock+0x30/0x30 [ 2221.542232][T25754] ? xfd_validate_state+0x5d/0x180 [ 2221.547387][T25754] ? syscall_enter_from_user_mode+0x26/0x80 [ 2221.553401][T25754] do_syscall_64+0x3f/0x110 [ 2221.557938][T25754] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2221.563846][T25754] RIP: 0033:0x7f874a47cae9 [ 2221.568269][T25754] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2221.589143][T25754] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2221.597579][T25754] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2221.606000][T25754] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2221.613982][T25754] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 22:27:51 executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0xc000000, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) [ 2221.622048][T25754] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2221.630028][T25754] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2221.638037][T25754] 22:27:51 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1d}, 0xc0fe) [ 2221.703940][T25754] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:51 executing program 2: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x902}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2221.810402][T25763] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2221.846950][T25772] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. [ 2221.908099][T25772] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2221.953699][T25772] CPU: 1 PID: 25772 Comm: syz-executor.0 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2221.963934][T25772] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2221.974038][T25772] Call Trace: [ 2221.977350][T25772] [ 2221.980316][T25772] dump_stack_lvl+0x125/0x1b0 [ 2221.985578][T25772] sysfs_warn_dup+0x7f/0xa0 [ 2221.990155][T25772] sysfs_create_dir_ns+0x247/0x2a0 [ 2221.995346][T25772] ? sysfs_create_mount_point+0xb0/0xb0 [ 2222.000958][T25772] ? spin_bug+0x1d0/0x1d0 [ 2222.005374][T25772] ? net_namespace+0x12/0x40 [ 2222.010051][T25772] ? device_namespace+0x8d/0xc0 [ 2222.014970][T25772] kobject_add_internal+0x2c8/0x960 [ 2222.020238][T25772] kobject_add+0x16f/0x240 [ 2222.024716][T25772] ? kset_create_and_add+0x190/0x190 [ 2222.030076][T25772] ? do_raw_spin_unlock+0x173/0x230 [ 2222.035326][T25772] ? kobject_put+0xbe/0x440 [ 2222.039891][T25772] device_add+0x289/0x1aa0 [ 2222.044434][T25772] ? device_initialize+0x510/0x510 [ 2222.049606][T25772] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2222.056514][T25772] ? __init_waitqueue_head+0xca/0x150 [ 2222.061949][T25772] netdev_register_kobject+0x183/0x3f0 [ 2222.067556][T25772] register_netdevice+0xbdf/0x14a0 [ 2222.072710][T25772] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2222.078892][T25772] veth_newlink+0x4ef/0xa00 [ 2222.083421][T25772] ? veth_set_features+0x2d0/0x2d0 [ 2222.088558][T25772] ? rtnl_create_link+0xc9c/0xfd0 [ 2222.093611][T25772] ? __rtnl_newlink+0x108a/0x1930 [ 2222.098658][T25772] ? rtnl_newlink+0x67/0xa0 [ 2222.103236][T25772] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2222.108469][T25772] ? alloc_netdev_mqs+0xee6/0x1290 [ 2222.113636][T25772] ? rtnl_create_link+0xa6d/0xfd0 [ 2222.118740][T25772] ? veth_set_features+0x2d0/0x2d0 [ 2222.123974][T25772] __rtnl_newlink+0x1173/0x1930 [ 2222.128864][T25772] ? rtnl_link_unregister+0x260/0x260 [ 2222.134290][T25772] rtnl_newlink+0x67/0xa0 [ 2222.138723][T25772] ? __rtnl_newlink+0x1930/0x1930 [ 2222.143762][T25772] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2222.148808][T25772] ? rtnl_getlink+0xb40/0xb40 [ 2222.153515][T25772] netlink_rcv_skb+0x16b/0x440 [ 2222.158301][T25772] ? rtnl_getlink+0xb40/0xb40 [ 2222.163096][T25772] ? netlink_ack+0x1370/0x1370 [ 2222.167908][T25772] ? netlink_deliver_tap+0x1a0/0xd00 [ 2222.173244][T25772] netlink_unicast+0x53b/0x810 [ 2222.178129][T25772] ? netlink_attachskb+0x880/0x880 [ 2222.183259][T25772] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2222.189172][T25772] ? __phys_addr_symbol+0x30/0x70 [ 2222.194303][T25772] ? __check_object_size+0x323/0x730 [ 2222.199894][T25772] netlink_sendmsg+0x93c/0xe40 [ 2222.204695][T25772] ? netlink_unicast+0x810/0x810 [ 2222.209666][T25772] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2222.214976][T25772] ? netlink_unicast+0x810/0x810 [ 2222.219959][T25772] __sock_sendmsg+0xd5/0x180 [ 2222.224563][T25772] ____sys_sendmsg+0x6ac/0x940 [ 2222.229348][T25772] ? copy_msghdr_from_user+0x10b/0x160 [ 2222.234824][T25772] ? kernel_sendmsg+0x50/0x50 [ 2222.239520][T25772] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2222.245542][T25772] ___sys_sendmsg+0x135/0x1d0 [ 2222.250242][T25772] ? do_recvmmsg+0x740/0x740 [ 2222.254848][T25772] ? find_held_lock+0x2d/0x110 [ 2222.259667][T25772] ? __fget_light+0xe6/0x260 [ 2222.264294][T25772] __sys_sendmsg+0x117/0x1e0 [ 2222.268901][T25772] ? __sys_sendmsg_sock+0x30/0x30 [ 2222.274296][T25772] ? xfd_validate_state+0x5d/0x180 [ 2222.279450][T25772] ? syscall_enter_from_user_mode+0x26/0x80 [ 2222.285453][T25772] do_syscall_64+0x3f/0x110 [ 2222.289998][T25772] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2222.295914][T25772] RIP: 0033:0x7fedc2e7cae9 [ 2222.300350][T25772] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2222.320067][T25772] RSP: 002b:00007fedc3aef0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2222.328583][T25772] RAX: ffffffffffffffda RBX: 00007fedc2f9bf80 RCX: 00007fedc2e7cae9 [ 2222.336567][T25772] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2222.344548][T25772] RBP: 00007fedc2ec847a R08: 0000000000000000 R09: 0000000000000000 [ 2222.352535][T25772] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2222.360522][T25772] R13: 000000000000000b R14: 00007fedc2f9bf80 R15: 00007ffdb0854d38 [ 2222.368620][T25772] [ 2222.399583][ T1238] ieee802154 phy0 wpan0: encryption failed: -22 [ 2222.406252][ T1238] ieee802154 phy1 wpan1: encryption failed: -22 [ 2222.431641][T25772] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:52 executing program 2: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x500}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:52 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x3}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:52 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x11}, 0xc0fe) 22:27:52 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000100a800"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:52 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x6}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) [ 2222.561212][T25783] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2222.597020][T25783] CPU: 1 PID: 25783 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 22:27:52 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x4}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2222.607159][T25783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2222.617249][T25783] Call Trace: [ 2222.620566][T25783] [ 2222.623542][T25783] dump_stack_lvl+0x125/0x1b0 [ 2222.628283][T25783] sysfs_warn_dup+0x7f/0xa0 [ 2222.632843][T25783] sysfs_create_dir_ns+0x247/0x2a0 [ 2222.638022][T25783] ? sysfs_create_mount_point+0xb0/0xb0 [ 2222.643644][T25783] ? spin_bug+0x1d0/0x1d0 [ 2222.648041][T25783] ? net_namespace+0x12/0x40 [ 2222.652681][T25783] ? device_namespace+0x8d/0xc0 22:27:52 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x34000}], 0x1}, 0xfc) 22:27:52 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c000000100001036100"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) [ 2222.657600][T25783] kobject_add_internal+0x2c8/0x960 [ 2222.662869][T25783] kobject_add+0x16f/0x240 [ 2222.667349][T25783] ? kset_create_and_add+0x190/0x190 [ 2222.672689][T25783] ? do_raw_spin_unlock+0x173/0x230 [ 2222.677947][T25783] ? kobject_put+0xbe/0x440 [ 2222.682519][T25783] device_add+0x289/0x1aa0 [ 2222.687002][T25783] ? device_initialize+0x510/0x510 [ 2222.692174][T25783] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2222.699079][T25783] ? __init_waitqueue_head+0xca/0x150 [ 2222.704604][T25783] netdev_register_kobject+0x183/0x3f0 [ 2222.710122][T25783] register_netdevice+0xbdf/0x14a0 [ 2222.715472][T25783] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2222.721418][T25783] ? validate_linkmsg+0x6fc/0x9c0 [ 2222.726518][T25783] br_dev_newlink+0x27/0x110 [ 2222.731357][T25783] ? br_changelink+0x1760/0x1760 [ 2222.736535][T25783] __rtnl_newlink+0x1173/0x1930 [ 2222.741464][T25783] ? rtnl_link_unregister+0x260/0x260 [ 2222.746975][T25783] rtnl_newlink+0x67/0xa0 [ 2222.751382][T25783] ? __rtnl_newlink+0x1930/0x1930 [ 2222.756466][T25783] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2222.761451][T25783] ? rtnl_getlink+0xb40/0xb40 [ 2222.766187][T25783] ? find_held_lock+0x2d/0x110 [ 2222.771031][T25783] ? rcu_preempt_deferred_qs_irqrestore+0x684/0xdb0 [ 2222.777689][T25783] ? reacquire_held_locks+0x4b0/0x4b0 [ 2222.783130][T25783] netlink_rcv_skb+0x16b/0x440 [ 2222.787961][T25783] ? rtnl_getlink+0xb40/0xb40 [ 2222.792734][T25783] ? netlink_ack+0x1370/0x1370 [ 2222.797719][T25783] ? _raw_spin_unlock_irqrestore+0x3b/0x70 [ 2222.803766][T25783] ? __rcu_read_unlock+0x2ad/0x570 [ 2222.808945][T25783] ? netlink_deliver_tap+0x1a0/0xd00 [ 2222.814294][T25783] netlink_unicast+0x53b/0x810 [ 2222.819194][T25783] ? netlink_attachskb+0x880/0x880 [ 2222.824355][T25783] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2222.830297][T25783] ? __phys_addr_symbol+0x30/0x70 [ 2222.835362][T25783] ? __check_object_size+0x323/0x730 [ 2222.840707][T25783] netlink_sendmsg+0x93c/0xe40 [ 2222.845523][T25783] ? netlink_unicast+0x810/0x810 [ 2222.850514][T25783] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2222.855849][T25783] ? netlink_unicast+0x810/0x810 [ 2222.860838][T25783] __sock_sendmsg+0xd5/0x180 [ 2222.865467][T25783] ____sys_sendmsg+0x6ac/0x940 [ 2222.870353][T25783] ? copy_msghdr_from_user+0x10b/0x160 [ 2222.875853][T25783] ? kernel_sendmsg+0x50/0x50 [ 2222.880571][T25783] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2222.886607][T25783] ___sys_sendmsg+0x135/0x1d0 [ 2222.891334][T25783] ? do_recvmmsg+0x740/0x740 [ 2222.895987][T25783] ? find_held_lock+0x2d/0x110 [ 2222.900824][T25783] ? __fget_light+0xe6/0x260 [ 2222.905468][T25783] __sys_sendmsg+0x117/0x1e0 [ 2222.910119][T25783] ? __sys_sendmsg_sock+0x30/0x30 [ 2222.915191][T25783] ? xfd_validate_state+0x5d/0x180 [ 2222.920386][T25783] ? syscall_enter_from_user_mode+0x26/0x80 [ 2222.926452][T25783] do_syscall_64+0x3f/0x110 [ 2222.931015][T25783] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2222.936961][T25783] RIP: 0033:0x7f874a47cae9 [ 2222.941408][T25783] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 22:27:53 executing program 5: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x2fa}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2222.961062][T25783] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2222.969536][T25783] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2222.977556][T25783] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2222.985584][T25783] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2222.993693][T25783] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2223.001715][T25783] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2223.009754][T25783] 22:27:53 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x6}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2223.097825][T25783] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:53 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x1ca}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2223.197479][T25788] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2223.215104][T25788] CPU: 1 PID: 25788 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2223.225498][T25788] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2223.235606][T25788] Call Trace: [ 2223.238932][T25788] [ 2223.242076][T25788] dump_stack_lvl+0x125/0x1b0 22:27:53 executing program 5: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x12d}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2223.246994][T25788] sysfs_warn_dup+0x7f/0xa0 [ 2223.251563][T25788] sysfs_create_dir_ns+0x247/0x2a0 [ 2223.256831][T25788] ? sysfs_create_mount_point+0xb0/0xb0 [ 2223.262452][T25788] ? spin_bug+0x1d0/0x1d0 [ 2223.266854][T25788] ? net_namespace+0x12/0x40 [ 2223.271516][T25788] ? device_namespace+0x8d/0xc0 [ 2223.276432][T25788] kobject_add_internal+0x2c8/0x960 [ 2223.281722][T25788] kobject_add+0x16f/0x240 [ 2223.286201][T25788] ? kset_create_and_add+0x190/0x190 [ 2223.291549][T25788] ? do_raw_spin_unlock+0x173/0x230 [ 2223.296812][T25788] ? kobject_put+0xbe/0x440 [ 2223.301386][T25788] device_add+0x289/0x1aa0 [ 2223.305859][T25788] ? device_initialize+0x510/0x510 [ 2223.311033][T25788] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2223.317957][T25788] ? __init_waitqueue_head+0xca/0x150 [ 2223.323395][T25788] netdev_register_kobject+0x183/0x3f0 [ 2223.328914][T25788] register_netdevice+0xbdf/0x14a0 [ 2223.334087][T25788] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2223.340137][T25788] veth_newlink+0x4ef/0xa00 [ 2223.344706][T25788] ? veth_set_features+0x2d0/0x2d0 [ 2223.349865][T25788] ? rtnl_create_link+0xc9c/0xfd0 [ 2223.355026][T25788] ? __rtnl_newlink+0x108a/0x1930 [ 2223.360097][T25788] ? rtnl_newlink+0x67/0xa0 [ 2223.364704][T25788] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2223.369965][T25788] ? alloc_netdev_mqs+0xee6/0x1290 [ 2223.375147][T25788] ? rtnl_create_link+0xa6d/0xfd0 [ 2223.380242][T25788] ? veth_set_features+0x2d0/0x2d0 [ 2223.385409][T25788] __rtnl_newlink+0x1173/0x1930 [ 2223.390600][T25788] ? rtnl_link_unregister+0x260/0x260 22:27:53 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x2e}], 0x1}, 0xfc) 22:27:53 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x34000}], 0x1}, 0xc0fe) [ 2223.396061][T25788] rtnl_newlink+0x67/0xa0 [ 2223.400606][T25788] ? __rtnl_newlink+0x1930/0x1930 [ 2223.405668][T25788] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2223.410649][T25788] ? rtnl_getlink+0xb40/0xb40 [ 2223.415475][T25788] netlink_rcv_skb+0x16b/0x440 [ 2223.420283][T25788] ? rtnl_getlink+0xb40/0xb40 [ 2223.425011][T25788] ? netlink_ack+0x1370/0x1370 [ 2223.429850][T25788] ? netlink_deliver_tap+0x1a0/0xd00 [ 2223.435199][T25788] netlink_unicast+0x53b/0x810 [ 2223.440041][T25788] ? netlink_attachskb+0x880/0x880 [ 2223.445217][T25788] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2223.451163][T25788] ? __phys_addr_symbol+0x30/0x70 [ 2223.456239][T25788] ? __check_object_size+0x323/0x730 [ 2223.461597][T25788] netlink_sendmsg+0x93c/0xe40 [ 2223.466424][T25788] ? netlink_unicast+0x810/0x810 [ 2223.471509][T25788] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2223.476840][T25788] ? netlink_unicast+0x810/0x810 [ 2223.481837][T25788] __sock_sendmsg+0xd5/0x180 [ 2223.486475][T25788] ____sys_sendmsg+0x6ac/0x940 [ 2223.491913][T25788] ? copy_msghdr_from_user+0x10b/0x160 [ 2223.497430][T25788] ? kernel_sendmsg+0x50/0x50 [ 2223.502184][T25788] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2223.508251][T25788] ___sys_sendmsg+0x135/0x1d0 [ 2223.512998][T25788] ? do_recvmmsg+0x740/0x740 [ 2223.517670][T25788] ? find_held_lock+0x2d/0x110 [ 2223.522533][T25788] ? __fget_light+0xe6/0x260 [ 2223.527282][T25788] __sys_sendmsg+0x117/0x1e0 [ 2223.532101][T25788] ? __sys_sendmsg_sock+0x30/0x30 [ 2223.537169][T25788] ? xfd_validate_state+0x5d/0x180 [ 2223.542360][T25788] ? syscall_enter_from_user_mode+0x26/0x80 22:27:53 executing program 0: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x72}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2223.548484][T25788] do_syscall_64+0x3f/0x110 [ 2223.553130][T25788] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2223.559076][T25788] RIP: 0033:0x7f70d3c7cae9 [ 2223.563523][T25788] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2223.583352][T25788] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2223.591809][T25788] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2223.599837][T25788] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2223.607863][T25788] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2223.615963][T25788] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2223.623975][T25788] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2223.632008][T25788] [ 2223.681746][T25788] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:53 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x7}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:53 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x7}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:53 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000101a800"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:53 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x3a}], 0x1}, 0xc0fe) 22:27:53 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1c}], 0x1}, 0xfc) 22:27:53 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x24}], 0x1}, 0xfc) [ 2223.914895][T25820] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2223.952492][T25820] CPU: 1 PID: 25820 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2223.962637][T25820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2223.972732][T25820] Call Trace: [ 2223.976046][T25820] [ 2223.979015][T25820] dump_stack_lvl+0x125/0x1b0 [ 2223.984107][T25820] sysfs_warn_dup+0x7f/0xa0 [ 2223.989039][T25820] sysfs_create_dir_ns+0x247/0x2a0 [ 2223.994227][T25820] ? sysfs_create_mount_point+0xb0/0xb0 [ 2224.000111][T25820] ? spin_bug+0x1d0/0x1d0 [ 2224.004514][T25820] ? net_namespace+0x12/0x40 [ 2224.009168][T25820] ? device_namespace+0x8d/0xc0 [ 2224.014079][T25820] kobject_add_internal+0x2c8/0x960 [ 2224.019346][T25820] kobject_add+0x16f/0x240 [ 2224.023828][T25820] ? kset_create_and_add+0x190/0x190 [ 2224.029435][T25820] ? do_raw_spin_unlock+0x173/0x230 [ 2224.034695][T25820] ? kobject_put+0xbe/0x440 [ 2224.039270][T25820] device_add+0x289/0x1aa0 [ 2224.043734][T25820] ? device_initialize+0x510/0x510 [ 2224.048911][T25820] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2224.055824][T25820] ? __init_waitqueue_head+0xca/0x150 [ 2224.061278][T25820] netdev_register_kobject+0x183/0x3f0 [ 2224.066803][T25820] register_netdevice+0xbdf/0x14a0 [ 2224.071971][T25820] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2224.077921][T25820] ? validate_linkmsg+0x6fc/0x9c0 [ 2224.083027][T25820] br_dev_newlink+0x27/0x110 [ 2224.087683][T25820] ? br_changelink+0x1760/0x1760 [ 2224.092701][T25820] __rtnl_newlink+0x1173/0x1930 [ 2224.097620][T25820] ? rtnl_link_unregister+0x260/0x260 [ 2224.103076][T25820] rtnl_newlink+0x67/0xa0 [ 2224.107455][T25820] ? __rtnl_newlink+0x1930/0x1930 [ 2224.112605][T25820] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2224.117687][T25820] ? rtnl_getlink+0xb40/0xb40 [ 2224.122426][T25820] netlink_rcv_skb+0x16b/0x440 [ 2224.127238][T25820] ? rtnl_getlink+0xb40/0xb40 [ 2224.131961][T25820] ? netlink_ack+0x1370/0x1370 [ 2224.136797][T25820] ? netlink_deliver_tap+0x1a0/0xd00 [ 2224.142140][T25820] netlink_unicast+0x53b/0x810 [ 2224.146956][T25820] ? netlink_attachskb+0x880/0x880 [ 2224.152114][T25820] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2224.158058][T25820] ? __phys_addr_symbol+0x30/0x70 22:27:54 executing program 5: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c000000100001035d00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:54 executing program 2: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x7}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2224.163129][T25820] ? __check_object_size+0x323/0x730 [ 2224.168477][T25820] netlink_sendmsg+0x93c/0xe40 [ 2224.173297][T25820] ? netlink_unicast+0x810/0x810 [ 2224.178295][T25820] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2224.183617][T25820] ? netlink_unicast+0x810/0x810 [ 2224.188600][T25820] __sock_sendmsg+0xd5/0x180 [ 2224.193228][T25820] ____sys_sendmsg+0x6ac/0x940 [ 2224.198128][T25820] ? copy_msghdr_from_user+0x10b/0x160 [ 2224.203627][T25820] ? kernel_sendmsg+0x50/0x50 [ 2224.208360][T25820] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2224.214408][T25820] ___sys_sendmsg+0x135/0x1d0 [ 2224.219139][T25820] ? do_recvmmsg+0x740/0x740 [ 2224.223766][T25820] ? find_held_lock+0x2d/0x110 [ 2224.229836][T25820] ? __fget_light+0xe6/0x260 [ 2224.234493][T25820] __sys_sendmsg+0x117/0x1e0 [ 2224.239134][T25820] ? __sys_sendmsg_sock+0x30/0x30 [ 2224.244207][T25820] ? xfd_validate_state+0x5d/0x180 [ 2224.249577][T25820] ? syscall_enter_from_user_mode+0x26/0x80 [ 2224.255530][T25820] do_syscall_64+0x3f/0x110 [ 2224.260102][T25820] entry_SYSCALL_64_after_hwframe+0x63/0x6b 22:27:54 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x11}], 0x1}, 0xfc) [ 2224.266063][T25820] RIP: 0033:0x7f874a47cae9 [ 2224.270692][T25820] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2224.290521][T25820] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2224.298976][T25820] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2224.307074][T25820] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 22:27:54 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2224.315111][T25820] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2224.323559][T25820] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2224.331563][T25820] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2224.339598][T25820] 22:27:54 executing program 2: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x4}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:54 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0xf}], 0x1}, 0xfc) [ 2224.507079][T25820] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2224.596090][T25825] __nla_validate_parse: 9 callbacks suppressed [ 2224.596113][T25825] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2224.679798][T25825] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2224.701089][T25825] CPU: 0 PID: 25825 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2224.711323][T25825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2224.721422][T25825] Call Trace: [ 2224.724741][T25825] [ 2224.727806][T25825] dump_stack_lvl+0x125/0x1b0 [ 2224.732633][T25825] sysfs_warn_dup+0x7f/0xa0 [ 2224.737374][T25825] sysfs_create_dir_ns+0x247/0x2a0 [ 2224.742720][T25825] ? sysfs_create_mount_point+0xb0/0xb0 [ 2224.748325][T25825] ? spin_bug+0x1d0/0x1d0 [ 2224.752747][T25825] ? net_namespace+0x12/0x40 [ 2224.757366][T25825] ? device_namespace+0x8d/0xc0 [ 2224.762275][T25825] kobject_add_internal+0x2c8/0x960 [ 2224.767541][T25825] kobject_add+0x16f/0x240 [ 2224.772022][T25825] ? kset_create_and_add+0x190/0x190 [ 2224.777378][T25825] ? do_raw_spin_unlock+0x173/0x230 [ 2224.782638][T25825] ? kobject_put+0xbe/0x440 [ 2224.787306][T25825] device_add+0x289/0x1aa0 [ 2224.791771][T25825] ? device_initialize+0x510/0x510 [ 2224.796947][T25825] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2224.803878][T25825] ? __init_waitqueue_head+0xca/0x150 [ 2224.809306][T25825] netdev_register_kobject+0x183/0x3f0 [ 2224.814815][T25825] register_netdevice+0xbdf/0x14a0 [ 2224.819969][T25825] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2224.825924][T25825] veth_newlink+0x4ef/0xa00 [ 2224.830483][T25825] ? veth_set_features+0x2d0/0x2d0 [ 2224.835629][T25825] ? rtnl_create_link+0xc9c/0xfd0 [ 2224.840706][T25825] ? __rtnl_newlink+0x108a/0x1930 [ 2224.845851][T25825] ? rtnl_newlink+0x67/0xa0 [ 2224.850550][T25825] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2224.855800][T25825] ? alloc_netdev_mqs+0xee6/0x1290 [ 2224.861051][T25825] ? rtnl_create_link+0xa6d/0xfd0 [ 2224.866475][T25825] ? veth_set_features+0x2d0/0x2d0 [ 2224.871715][T25825] __rtnl_newlink+0x1173/0x1930 [ 2224.876633][T25825] ? rtnl_link_unregister+0x260/0x260 [ 2224.882082][T25825] rtnl_newlink+0x67/0xa0 [ 2224.886455][T25825] ? __rtnl_newlink+0x1930/0x1930 [ 2224.891589][T25825] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2224.896588][T25825] ? rtnl_getlink+0xb40/0xb40 [ 2224.901336][T25825] netlink_rcv_skb+0x16b/0x440 [ 2224.906171][T25825] ? rtnl_getlink+0xb40/0xb40 [ 2224.910908][T25825] ? netlink_ack+0x1370/0x1370 [ 2224.915875][T25825] ? netlink_deliver_tap+0x1a0/0xd00 [ 2224.921217][T25825] netlink_unicast+0x53b/0x810 [ 2224.926028][T25825] ? netlink_attachskb+0x880/0x880 [ 2224.931266][T25825] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2224.937201][T25825] ? __phys_addr_symbol+0x30/0x70 [ 2224.942267][T25825] ? __check_object_size+0x323/0x730 [ 2224.947720][T25825] netlink_sendmsg+0x93c/0xe40 [ 2224.952539][T25825] ? netlink_unicast+0x810/0x810 [ 2224.957523][T25825] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2224.962852][T25825] ? netlink_unicast+0x810/0x810 [ 2224.967931][T25825] __sock_sendmsg+0xd5/0x180 [ 2224.972564][T25825] ____sys_sendmsg+0x6ac/0x940 [ 2224.977378][T25825] ? copy_msghdr_from_user+0x10b/0x160 [ 2224.982908][T25825] ? kernel_sendmsg+0x50/0x50 [ 2224.987804][T25825] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2224.994205][T25825] ___sys_sendmsg+0x135/0x1d0 [ 2224.998927][T25825] ? do_recvmmsg+0x740/0x740 [ 2225.003557][T25825] ? find_held_lock+0x2d/0x110 [ 2225.008495][T25825] ? __fget_light+0xe6/0x260 [ 2225.013226][T25825] __sys_sendmsg+0x117/0x1e0 [ 2225.017950][T25825] ? __sys_sendmsg_sock+0x30/0x30 [ 2225.023182][T25825] ? xfd_validate_state+0x5d/0x180 [ 2225.028368][T25825] ? syscall_enter_from_user_mode+0x26/0x80 [ 2225.034327][T25825] do_syscall_64+0x3f/0x110 [ 2225.038887][T25825] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2225.044825][T25825] RIP: 0033:0x7f70d3c7cae9 [ 2225.049268][T25825] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2225.069094][T25825] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2225.077821][T25825] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2225.085919][T25825] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2225.093928][T25825] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2225.101950][T25825] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2225.109955][T25825] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2225.117990][T25825] [ 2225.133769][T25825] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2225.162293][T25830] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2225.179912][T25838] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. 22:27:55 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x2}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:55 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x8}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:55 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c000000100001005d00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:55 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000102a800"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:55 executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c000000100001035c00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:55 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="10", 0x1}], 0x1}, 0xfc) [ 2225.215246][T25842] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. [ 2225.237392][T25848] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:27:55 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x3}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2225.327417][T25858] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2225.408093][T25858] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2225.433391][T25858] CPU: 1 PID: 25858 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2225.443529][T25858] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2225.453620][T25858] Call Trace: [ 2225.456935][T25858] [ 2225.459897][T25858] dump_stack_lvl+0x125/0x1b0 [ 2225.464894][T25858] sysfs_warn_dup+0x7f/0xa0 [ 2225.469462][T25858] sysfs_create_dir_ns+0x247/0x2a0 [ 2225.474639][T25858] ? sysfs_create_mount_point+0xb0/0xb0 [ 2225.480420][T25858] ? spin_bug+0x1d0/0x1d0 [ 2225.484811][T25858] ? net_namespace+0x12/0x40 [ 2225.489442][T25858] ? device_namespace+0x8d/0xc0 [ 2225.494456][T25858] kobject_add_internal+0x2c8/0x960 [ 2225.499811][T25858] kobject_add+0x16f/0x240 [ 2225.504318][T25858] ? kset_create_and_add+0x190/0x190 [ 2225.509845][T25858] ? do_raw_spin_unlock+0x173/0x230 [ 2225.515099][T25858] ? kobject_put+0xbe/0x440 [ 2225.519682][T25858] device_add+0x289/0x1aa0 [ 2225.524144][T25858] ? device_initialize+0x510/0x510 [ 2225.529312][T25858] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2225.536231][T25858] ? __init_waitqueue_head+0xca/0x150 [ 2225.541673][T25858] netdev_register_kobject+0x183/0x3f0 [ 2225.547203][T25858] register_netdevice+0xbdf/0x14a0 [ 2225.552548][T25858] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2225.558500][T25858] veth_newlink+0x4ef/0xa00 [ 2225.563072][T25858] ? veth_set_features+0x2d0/0x2d0 [ 2225.568236][T25858] ? rtnl_create_link+0xc9c/0xfd0 [ 2225.573325][T25858] ? __rtnl_newlink+0x108a/0x1930 [ 2225.578489][T25858] ? rtnl_newlink+0x67/0xa0 [ 2225.583213][T25858] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2225.588594][T25858] ? alloc_netdev_mqs+0xee6/0x1290 [ 2225.593772][T25858] ? rtnl_create_link+0xa6d/0xfd0 [ 2225.598883][T25858] ? veth_set_features+0x2d0/0x2d0 [ 2225.604055][T25858] __rtnl_newlink+0x1173/0x1930 [ 2225.609147][T25858] ? rtnl_link_unregister+0x260/0x260 [ 2225.614606][T25858] rtnl_newlink+0x67/0xa0 [ 2225.619082][T25858] ? __rtnl_newlink+0x1930/0x1930 [ 2225.624147][T25858] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2225.629131][T25858] ? rtnl_getlink+0xb40/0xb40 [ 2225.633997][T25858] netlink_rcv_skb+0x16b/0x440 [ 2225.638821][T25858] ? rtnl_getlink+0xb40/0xb40 [ 2225.643556][T25858] ? netlink_ack+0x1370/0x1370 [ 2225.648482][T25858] ? netlink_deliver_tap+0x1a0/0xd00 [ 2225.653837][T25858] netlink_unicast+0x53b/0x810 [ 2225.658766][T25858] ? netlink_attachskb+0x880/0x880 [ 2225.663919][T25858] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2225.669962][T25858] ? __phys_addr_symbol+0x30/0x70 [ 2225.675036][T25858] ? __check_object_size+0x323/0x730 [ 2225.680392][T25858] netlink_sendmsg+0x93c/0xe40 [ 2225.685212][T25858] ? netlink_unicast+0x810/0x810 [ 2225.690206][T25858] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2225.695711][T25858] ? netlink_unicast+0x810/0x810 [ 2225.700703][T25858] __sock_sendmsg+0xd5/0x180 [ 2225.705339][T25858] ____sys_sendmsg+0x6ac/0x940 [ 2225.710149][T25858] ? copy_msghdr_from_user+0x10b/0x160 [ 2225.715660][T25858] ? kernel_sendmsg+0x50/0x50 [ 2225.720405][T25858] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2225.726453][T25858] ___sys_sendmsg+0x135/0x1d0 [ 2225.731198][T25858] ? do_recvmmsg+0x740/0x740 [ 2225.735925][T25858] ? find_held_lock+0x2d/0x110 [ 2225.740787][T25858] ? __fget_light+0xe6/0x260 [ 2225.745437][T25858] __sys_sendmsg+0x117/0x1e0 [ 2225.750074][T25858] ? __sys_sendmsg_sock+0x30/0x30 [ 2225.755148][T25858] ? xfd_validate_state+0x5d/0x180 [ 2225.760335][T25858] ? syscall_enter_from_user_mode+0x26/0x80 [ 2225.766277][T25858] do_syscall_64+0x3f/0x110 [ 2225.770832][T25858] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2225.776773][T25858] RIP: 0033:0x7f70d3c7cae9 [ 2225.781654][T25858] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2225.801659][T25858] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e 22:27:55 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x17}], 0x1}, 0xc0fe) [ 2225.810306][T25858] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2225.818319][T25858] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2225.826329][T25858] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2225.834341][T25858] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2225.842347][T25858] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2225.850378][T25858] 22:27:55 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x4}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2225.886673][T25858] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:56 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x6}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2225.966446][T25862] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2225.979302][T25865] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. 22:27:56 executing program 5: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x8702}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2226.025996][T25866] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. [ 2226.075782][T25870] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. 22:27:56 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x9}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:56 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote={0xac, 0x12}}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xfc) 22:27:56 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000103a800"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:56 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote={0xac, 0x6}}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xfc) 22:27:56 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x7}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2226.272336][T25893] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2226.295109][T25893] CPU: 1 PID: 25893 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2226.305294][T25893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2226.315384][T25893] Call Trace: [ 2226.318699][T25893] [ 2226.321670][T25893] dump_stack_lvl+0x125/0x1b0 [ 2226.326469][T25893] sysfs_warn_dup+0x7f/0xa0 [ 2226.331269][T25893] sysfs_create_dir_ns+0x247/0x2a0 [ 2226.336420][T25893] ? sysfs_create_mount_point+0xb0/0xb0 [ 2226.341989][T25893] ? spin_bug+0x1d0/0x1d0 [ 2226.346532][T25893] ? net_namespace+0x12/0x40 [ 2226.351132][T25893] ? device_namespace+0x8d/0xc0 [ 2226.356019][T25893] kobject_add_internal+0x2c8/0x960 [ 2226.361249][T25893] kobject_add+0x16f/0x240 [ 2226.365787][T25893] ? kset_create_and_add+0x190/0x190 [ 2226.371109][T25893] ? do_raw_spin_unlock+0x173/0x230 [ 2226.376338][T25893] ? kobject_put+0xbe/0x440 [ 2226.380878][T25893] device_add+0x289/0x1aa0 [ 2226.385314][T25893] ? device_initialize+0x510/0x510 [ 2226.390453][T25893] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2226.397326][T25893] ? __init_waitqueue_head+0xca/0x150 [ 2226.402723][T25893] netdev_register_kobject+0x183/0x3f0 [ 2226.408898][T25893] register_netdevice+0xbdf/0x14a0 [ 2226.414044][T25893] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2226.419971][T25893] ? validate_linkmsg+0x6fc/0x9c0 [ 2226.425048][T25893] br_dev_newlink+0x27/0x110 [ 2226.429681][T25893] ? br_changelink+0x1760/0x1760 [ 2226.434660][T25893] __rtnl_newlink+0x1173/0x1930 [ 2226.439548][T25893] ? rtnl_link_unregister+0x260/0x260 [ 2226.445053][T25893] rtnl_newlink+0x67/0xa0 [ 2226.449496][T25893] ? __rtnl_newlink+0x1930/0x1930 [ 2226.454535][T25893] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2226.459507][T25893] ? rtnl_getlink+0xb40/0xb40 [ 2226.464242][T25893] netlink_rcv_skb+0x16b/0x440 [ 2226.469038][T25893] ? rtnl_getlink+0xb40/0xb40 [ 2226.473757][T25893] ? netlink_ack+0x1370/0x1370 [ 2226.478566][T25893] ? netlink_deliver_tap+0x1a0/0xd00 [ 2226.483892][T25893] netlink_unicast+0x53b/0x810 [ 2226.488681][T25893] ? netlink_attachskb+0x880/0x880 [ 2226.493807][T25893] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2226.499721][T25893] ? __phys_addr_symbol+0x30/0x70 [ 2226.504764][T25893] ? __check_object_size+0x323/0x730 [ 2226.510170][T25893] netlink_sendmsg+0x93c/0xe40 [ 2226.514972][T25893] ? netlink_unicast+0x810/0x810 [ 2226.519950][T25893] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2226.525279][T25893] ? netlink_unicast+0x810/0x810 [ 2226.530242][T25893] __sock_sendmsg+0xd5/0x180 [ 2226.534982][T25893] ____sys_sendmsg+0x6ac/0x940 [ 2226.539877][T25893] ? copy_msghdr_from_user+0x10b/0x160 [ 2226.545374][T25893] ? kernel_sendmsg+0x50/0x50 [ 2226.550164][T25893] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2226.556184][T25893] ___sys_sendmsg+0x135/0x1d0 [ 2226.560891][T25893] ? do_recvmmsg+0x740/0x740 [ 2226.565502][T25893] ? find_held_lock+0x2d/0x110 [ 2226.570327][T25893] ? __fget_light+0xe6/0x260 [ 2226.574945][T25893] __sys_sendmsg+0x117/0x1e0 [ 2226.579555][T25893] ? __sys_sendmsg_sock+0x30/0x30 [ 2226.584598][T25893] ? xfd_validate_state+0x5d/0x180 [ 2226.589772][T25893] ? syscall_enter_from_user_mode+0x26/0x80 [ 2226.595731][T25893] do_syscall_64+0x3f/0x110 [ 2226.600263][T25893] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2226.607649][T25893] RIP: 0033:0x7f874a47cae9 [ 2226.612085][T25893] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2226.631980][T25893] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2226.640438][T25893] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2226.648509][T25893] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2226.656496][T25893] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2226.664475][T25893] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 22:27:56 executing program 5: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x6a00}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2226.672455][T25893] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2226.680542][T25893] 22:27:56 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x3f00, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xfc) [ 2226.738666][T25893] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:56 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x1f00, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xfc) 22:27:56 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x8}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:56 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote={0xac, 0x14, 0xa}}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:27:56 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x9}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2226.986167][T25894] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2227.018191][T25894] CPU: 1 PID: 25894 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 22:27:57 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0xf00, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xfc) [ 2227.028350][T25894] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2227.038455][T25894] Call Trace: [ 2227.041778][T25894] [ 2227.044748][T25894] dump_stack_lvl+0x125/0x1b0 [ 2227.049491][T25894] sysfs_warn_dup+0x7f/0xa0 [ 2227.054066][T25894] sysfs_create_dir_ns+0x247/0x2a0 [ 2227.059591][T25894] ? sysfs_create_mount_point+0xb0/0xb0 [ 2227.065544][T25894] ? spin_bug+0x1d0/0x1d0 [ 2227.069936][T25894] ? net_namespace+0x12/0x40 [ 2227.074591][T25894] ? device_namespace+0x8d/0xc0 [ 2227.079522][T25894] kobject_add_internal+0x2c8/0x960 [ 2227.084890][T25894] kobject_add+0x16f/0x240 [ 2227.089418][T25894] ? kset_create_and_add+0x190/0x190 [ 2227.094787][T25894] ? do_raw_spin_unlock+0x173/0x230 [ 2227.100051][T25894] ? kobject_put+0xbe/0x440 [ 2227.104637][T25894] device_add+0x289/0x1aa0 [ 2227.109111][T25894] ? device_initialize+0x510/0x510 [ 2227.114293][T25894] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2227.121221][T25894] ? __init_waitqueue_head+0xca/0x150 [ 2227.126673][T25894] netdev_register_kobject+0x183/0x3f0 [ 2227.132554][T25894] register_netdevice+0xbdf/0x14a0 [ 2227.137742][T25894] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2227.143710][T25894] veth_newlink+0x4ef/0xa00 [ 2227.148365][T25894] ? veth_set_features+0x2d0/0x2d0 [ 2227.153534][T25894] ? rtnl_create_link+0xc9c/0xfd0 [ 2227.158628][T25894] ? __rtnl_newlink+0x108a/0x1930 [ 2227.163797][T25894] ? rtnl_newlink+0x67/0xa0 [ 2227.168436][T25894] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2227.173705][T25894] ? alloc_netdev_mqs+0xee6/0x1290 [ 2227.179062][T25894] ? rtnl_create_link+0xa6d/0xfd0 [ 2227.184265][T25894] ? veth_set_features+0x2d0/0x2d0 [ 2227.189434][T25894] __rtnl_newlink+0x1173/0x1930 [ 2227.194913][T25894] ? rtnl_link_unregister+0x260/0x260 [ 2227.200421][T25894] rtnl_newlink+0x67/0xa0 [ 2227.204810][T25894] ? __rtnl_newlink+0x1930/0x1930 [ 2227.209923][T25894] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2227.214931][T25894] ? rtnl_getlink+0xb40/0xb40 [ 2227.219689][T25894] netlink_rcv_skb+0x16b/0x440 [ 2227.224516][T25894] ? rtnl_getlink+0xb40/0xb40 [ 2227.229337][T25894] ? netlink_ack+0x1370/0x1370 [ 2227.234175][T25894] ? netlink_deliver_tap+0x1a0/0xd00 [ 2227.239537][T25894] netlink_unicast+0x53b/0x810 [ 2227.244375][T25894] ? netlink_attachskb+0x880/0x880 [ 2227.249557][T25894] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2227.255509][T25894] ? __phys_addr_symbol+0x30/0x70 [ 2227.260595][T25894] ? __check_object_size+0x323/0x730 [ 2227.266044][T25894] netlink_sendmsg+0x93c/0xe40 [ 2227.270962][T25894] ? netlink_unicast+0x810/0x810 [ 2227.275978][T25894] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2227.281428][T25894] ? netlink_unicast+0x810/0x810 [ 2227.286426][T25894] __sock_sendmsg+0xd5/0x180 [ 2227.291073][T25894] ____sys_sendmsg+0x6ac/0x940 [ 2227.295891][T25894] ? copy_msghdr_from_user+0x10b/0x160 [ 2227.301413][T25894] ? kernel_sendmsg+0x50/0x50 [ 2227.306165][T25894] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2227.312252][T25894] ___sys_sendmsg+0x135/0x1d0 [ 2227.317426][T25894] ? do_recvmmsg+0x740/0x740 [ 2227.322071][T25894] ? find_held_lock+0x2d/0x110 [ 2227.326931][T25894] ? __fget_light+0xe6/0x260 [ 2227.331586][T25894] __sys_sendmsg+0x117/0x1e0 [ 2227.336231][T25894] ? __sys_sendmsg_sock+0x30/0x30 [ 2227.341300][T25894] ? xfd_validate_state+0x5d/0x180 [ 2227.346506][T25894] ? syscall_enter_from_user_mode+0x26/0x80 [ 2227.352627][T25894] do_syscall_64+0x3f/0x110 [ 2227.357191][T25894] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2227.363132][T25894] RIP: 0033:0x7f70d3c7cae9 [ 2227.367671][T25894] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2227.387325][T25894] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2227.397958][T25894] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2227.406501][T25894] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2227.414518][T25894] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2227.422544][T25894] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2227.430643][T25894] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2227.438675][T25894] [ 2227.506778][T25894] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:57 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0xa}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:57 executing program 5: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c000000100001005900"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:57 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote={0xac, 0x14, 0x4}}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:27:57 executing program 2: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xfe80000000000000) 22:27:57 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0xa}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:57 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000100a900"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) [ 2227.746571][T25927] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2227.767703][T25927] CPU: 1 PID: 25927 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2227.778020][T25927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2227.788111][T25927] Call Trace: [ 2227.791510][T25927] 22:27:57 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0xb}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2227.794483][T25927] dump_stack_lvl+0x125/0x1b0 [ 2227.799222][T25927] sysfs_warn_dup+0x7f/0xa0 [ 2227.803822][T25927] sysfs_create_dir_ns+0x247/0x2a0 [ 2227.809084][T25927] ? sysfs_create_mount_point+0xb0/0xb0 [ 2227.814699][T25927] ? spin_bug+0x1d0/0x1d0 [ 2227.819094][T25927] ? net_namespace+0x12/0x40 [ 2227.823736][T25927] ? device_namespace+0x8d/0xc0 [ 2227.828656][T25927] kobject_add_internal+0x2c8/0x960 [ 2227.833936][T25927] kobject_add+0x16f/0x240 [ 2227.838417][T25927] ? kset_create_and_add+0x190/0x190 [ 2227.843857][T25927] ? do_raw_spin_unlock+0x173/0x230 [ 2227.849129][T25927] ? kobject_put+0xbe/0x440 [ 2227.853797][T25927] device_add+0x289/0x1aa0 [ 2227.858265][T25927] ? device_initialize+0x510/0x510 [ 2227.863448][T25927] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2227.870443][T25927] ? __init_waitqueue_head+0xca/0x150 [ 2227.875883][T25927] netdev_register_kobject+0x183/0x3f0 [ 2227.881377][T25927] register_netdevice+0xbdf/0x14a0 [ 2227.886522][T25927] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2227.892432][T25927] ? validate_linkmsg+0x6fc/0x9c0 [ 2227.897584][T25927] br_dev_newlink+0x27/0x110 [ 2227.902207][T25927] ? br_changelink+0x1760/0x1760 [ 2227.907167][T25927] __rtnl_newlink+0x1173/0x1930 [ 2227.912590][T25927] ? rtnl_link_unregister+0x260/0x260 [ 2227.918113][T25927] rtnl_newlink+0x67/0xa0 [ 2227.922549][T25927] ? __rtnl_newlink+0x1930/0x1930 [ 2227.928388][T25927] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2227.933520][T25927] ? rtnl_getlink+0xb40/0xb40 [ 2227.938317][T25927] netlink_rcv_skb+0x16b/0x440 [ 2227.943233][T25927] ? rtnl_getlink+0xb40/0xb40 [ 2227.947946][T25927] ? netlink_ack+0x1370/0x1370 [ 2227.952838][T25927] ? netlink_deliver_tap+0x1a0/0xd00 [ 2227.958153][T25927] netlink_unicast+0x53b/0x810 [ 2227.962941][T25927] ? netlink_attachskb+0x880/0x880 [ 2227.968091][T25927] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2227.974048][T25927] ? __phys_addr_symbol+0x30/0x70 [ 2227.981811][T25927] ? __check_object_size+0x323/0x730 [ 2227.987250][T25927] netlink_sendmsg+0x93c/0xe40 [ 2227.992243][T25927] ? netlink_unicast+0x810/0x810 [ 2227.997391][T25927] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2228.002809][T25927] ? netlink_unicast+0x810/0x810 [ 2228.007774][T25927] __sock_sendmsg+0xd5/0x180 [ 2228.012388][T25927] ____sys_sendmsg+0x6ac/0x940 [ 2228.017170][T25927] ? copy_msghdr_from_user+0x10b/0x160 [ 2228.022678][T25927] ? kernel_sendmsg+0x50/0x50 [ 2228.027434][T25927] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2228.033480][T25927] ___sys_sendmsg+0x135/0x1d0 [ 2228.038364][T25927] ? do_recvmmsg+0x740/0x740 [ 2228.042979][T25927] ? find_held_lock+0x2d/0x110 [ 2228.047809][T25927] ? __fget_light+0xe6/0x260 [ 2228.052435][T25927] __sys_sendmsg+0x117/0x1e0 [ 2228.057045][T25927] ? __sys_sendmsg_sock+0x30/0x30 [ 2228.062174][T25927] ? xfd_validate_state+0x5d/0x180 [ 2228.067335][T25927] ? syscall_enter_from_user_mode+0x26/0x80 [ 2228.073355][T25927] do_syscall_64+0x3f/0x110 [ 2228.078326][T25927] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2228.084252][T25927] RIP: 0033:0x7f874a47cae9 [ 2228.088677][T25927] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2228.108388][T25927] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2228.116833][T25927] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2228.124917][T25927] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2228.133094][T25927] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 22:27:58 executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xfc) [ 2228.141520][T25927] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2228.149511][T25927] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2228.157516][T25927] [ 2228.194301][T25927] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:58 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0xc}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:58 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0xd}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2228.416370][T25932] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' 22:27:58 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0xe}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2228.466574][T25932] CPU: 0 PID: 25932 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2228.476734][T25932] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2228.486921][T25932] Call Trace: [ 2228.490319][T25932] [ 2228.493289][T25932] dump_stack_lvl+0x125/0x1b0 [ 2228.498028][T25932] sysfs_warn_dup+0x7f/0xa0 [ 2228.502607][T25932] sysfs_create_dir_ns+0x247/0x2a0 [ 2228.507877][T25932] ? sysfs_create_mount_point+0xb0/0xb0 22:27:58 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0xf}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2228.513494][T25932] ? spin_bug+0x1d0/0x1d0 [ 2228.517893][T25932] ? net_namespace+0x12/0x40 [ 2228.522525][T25932] ? device_namespace+0x8d/0xc0 [ 2228.527453][T25932] kobject_add_internal+0x2c8/0x960 [ 2228.532822][T25932] kobject_add+0x16f/0x240 [ 2228.537324][T25932] ? kset_create_and_add+0x190/0x190 [ 2228.542699][T25932] ? do_raw_spin_unlock+0x173/0x230 [ 2228.548144][T25932] ? kobject_put+0xbe/0x440 [ 2228.552737][T25932] device_add+0x289/0x1aa0 [ 2228.557213][T25932] ? device_initialize+0x510/0x510 [ 2228.562397][T25932] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2228.569331][T25932] ? __init_waitqueue_head+0xca/0x150 [ 2228.574771][T25932] netdev_register_kobject+0x183/0x3f0 [ 2228.580843][T25932] register_netdevice+0xbdf/0x14a0 [ 2228.586107][T25932] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2228.592500][T25932] veth_newlink+0x4ef/0xa00 [ 2228.597069][T25932] ? veth_set_features+0x2d0/0x2d0 [ 2228.602257][T25932] ? rtnl_create_link+0xc9c/0xfd0 [ 2228.607367][T25932] ? __rtnl_newlink+0x108a/0x1930 [ 2228.612439][T25932] ? rtnl_newlink+0x67/0xa0 [ 2228.617066][T25932] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2228.622318][T25932] ? alloc_netdev_mqs+0xee6/0x1290 [ 2228.627495][T25932] ? rtnl_create_link+0xa6d/0xfd0 [ 2228.632592][T25932] ? veth_set_features+0x2d0/0x2d0 [ 2228.637784][T25932] __rtnl_newlink+0x1173/0x1930 [ 2228.642715][T25932] ? rtnl_link_unregister+0x260/0x260 [ 2228.648182][T25932] rtnl_newlink+0x67/0xa0 [ 2228.652553][T25932] ? __rtnl_newlink+0x1930/0x1930 [ 2228.657844][T25932] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2228.662833][T25932] ? rtnl_getlink+0xb40/0xb40 [ 2228.667569][T25932] netlink_rcv_skb+0x16b/0x440 [ 2228.672382][T25932] ? rtnl_getlink+0xb40/0xb40 [ 2228.677101][T25932] ? netlink_ack+0x1370/0x1370 [ 2228.681929][T25932] ? netlink_deliver_tap+0x1a0/0xd00 [ 2228.687265][T25932] netlink_unicast+0x53b/0x810 [ 2228.692289][T25932] ? netlink_attachskb+0x880/0x880 [ 2228.697529][T25932] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2228.703463][T25932] ? __phys_addr_symbol+0x30/0x70 [ 2228.708539][T25932] ? __check_object_size+0x323/0x730 [ 2228.713886][T25932] netlink_sendmsg+0x93c/0xe40 [ 2228.718802][T25932] ? netlink_unicast+0x810/0x810 [ 2228.723914][T25932] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2228.729345][T25932] ? netlink_unicast+0x810/0x810 [ 2228.734350][T25932] __sock_sendmsg+0xd5/0x180 [ 2228.738990][T25932] ____sys_sendmsg+0x6ac/0x940 [ 2228.744350][T25932] ? copy_msghdr_from_user+0x10b/0x160 [ 2228.750051][T25932] ? kernel_sendmsg+0x50/0x50 [ 2228.755583][T25932] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2228.761631][T25932] ___sys_sendmsg+0x135/0x1d0 [ 2228.766369][T25932] ? do_recvmmsg+0x740/0x740 [ 2228.771015][T25932] ? find_held_lock+0x2d/0x110 [ 2228.775866][T25932] ? __fget_light+0xe6/0x260 [ 2228.780507][T25932] __sys_sendmsg+0x117/0x1e0 [ 2228.785143][T25932] ? __sys_sendmsg_sock+0x30/0x30 [ 2228.790202][T25932] ? xfd_validate_state+0x5d/0x180 [ 2228.795394][T25932] ? syscall_enter_from_user_mode+0x26/0x80 [ 2228.801339][T25932] do_syscall_64+0x3f/0x110 [ 2228.805898][T25932] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2228.812017][T25932] RIP: 0033:0x7f70d3c7cae9 [ 2228.816459][T25932] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2228.836370][T25932] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2228.844833][T25932] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2228.852841][T25932] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2228.860856][T25932] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2228.868956][T25932] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2228.876967][T25932] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2228.884999][T25932] [ 2228.924166][T25932] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:27:59 executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x9, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:59 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x6}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:59 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x4, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:59 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000101a900"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:27:59 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0xb}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:27:59 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='vcan0\x00', 0x10) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0xa00, @remote}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:27:59 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x7}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2229.166764][T25961] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2229.214675][T25961] CPU: 1 PID: 25961 Comm: syz-executor.0 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2229.225175][T25961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2229.235276][T25961] Call Trace: [ 2229.238584][T25961] [ 2229.242594][T25961] dump_stack_lvl+0x125/0x1b0 [ 2229.247426][T25961] sysfs_warn_dup+0x7f/0xa0 [ 2229.251993][T25961] sysfs_create_dir_ns+0x247/0x2a0 [ 2229.257167][T25961] ? sysfs_create_mount_point+0xb0/0xb0 [ 2229.262772][T25961] ? spin_bug+0x1d0/0x1d0 [ 2229.267189][T25961] ? net_namespace+0x12/0x40 [ 2229.271824][T25961] ? device_namespace+0x8d/0xc0 [ 2229.276818][T25961] kobject_add_internal+0x2c8/0x960 [ 2229.282083][T25961] kobject_add+0x16f/0x240 [ 2229.286567][T25961] ? kset_create_and_add+0x190/0x190 [ 2229.291917][T25961] ? do_raw_spin_unlock+0x173/0x230 [ 2229.297185][T25961] ? kobject_put+0xbe/0x440 [ 2229.301759][T25961] device_add+0x289/0x1aa0 [ 2229.306234][T25961] ? device_initialize+0x510/0x510 [ 2229.311503][T25961] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2229.318515][T25961] ? __init_waitqueue_head+0xca/0x150 [ 2229.323949][T25961] netdev_register_kobject+0x183/0x3f0 [ 2229.329463][T25961] register_netdevice+0xbdf/0x14a0 [ 2229.334631][T25961] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2229.340585][T25961] veth_newlink+0x4ef/0xa00 [ 2229.345143][T25961] ? veth_set_features+0x2d0/0x2d0 [ 2229.350302][T25961] ? rtnl_create_link+0xc9c/0xfd0 [ 2229.355394][T25961] ? __rtnl_newlink+0x108a/0x1930 [ 2229.360458][T25961] ? rtnl_newlink+0x67/0xa0 [ 2229.365069][T25961] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2229.370319][T25961] ? alloc_netdev_mqs+0xee6/0x1290 [ 2229.375496][T25961] ? rtnl_create_link+0xa6d/0xfd0 [ 2229.380582][T25961] ? veth_set_features+0x2d0/0x2d0 [ 2229.385734][T25961] __rtnl_newlink+0x1173/0x1930 [ 2229.390639][T25961] ? rtnl_link_unregister+0x260/0x260 [ 2229.396086][T25961] rtnl_newlink+0x67/0xa0 [ 2229.400542][T25961] ? __rtnl_newlink+0x1930/0x1930 [ 2229.405700][T25961] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2229.410772][T25961] ? rtnl_getlink+0xb40/0xb40 [ 2229.415574][T25961] ? find_held_lock+0x2d/0x110 [ 2229.420387][T25961] ? rcu_preempt_deferred_qs_irqrestore+0x684/0xdb0 [ 2229.427033][T25961] ? reacquire_held_locks+0x4b0/0x4b0 [ 2229.432566][T25961] netlink_rcv_skb+0x16b/0x440 [ 2229.437387][T25961] ? rtnl_getlink+0xb40/0xb40 [ 2229.442114][T25961] ? netlink_ack+0x1370/0x1370 [ 2229.446934][T25961] ? _raw_spin_unlock_irqrestore+0x3b/0x70 [ 2229.452805][T25961] ? __rcu_read_unlock+0x2ad/0x570 [ 2229.457974][T25961] ? netlink_deliver_tap+0x1a0/0xd00 [ 2229.463317][T25961] netlink_unicast+0x53b/0x810 [ 2229.468135][T25961] ? netlink_attachskb+0x880/0x880 [ 2229.473328][T25961] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2229.479262][T25961] ? __phys_addr_symbol+0x30/0x70 [ 2229.484358][T25961] ? __check_object_size+0x323/0x730 [ 2229.489712][T25961] netlink_sendmsg+0x93c/0xe40 [ 2229.494532][T25961] ? netlink_unicast+0x810/0x810 [ 2229.499536][T25961] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2229.504960][T25961] ? netlink_unicast+0x810/0x810 [ 2229.510218][T25961] __sock_sendmsg+0xd5/0x180 [ 2229.514959][T25961] ____sys_sendmsg+0x6ac/0x940 [ 2229.519771][T25961] ? copy_msghdr_from_user+0x10b/0x160 [ 2229.525291][T25961] ? kernel_sendmsg+0x50/0x50 [ 2229.530030][T25961] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2229.536077][T25961] ___sys_sendmsg+0x135/0x1d0 [ 2229.540806][T25961] ? do_recvmmsg+0x740/0x740 [ 2229.545442][T25961] ? find_held_lock+0x2d/0x110 [ 2229.550293][T25961] ? __fget_light+0xe6/0x260 [ 2229.554939][T25961] __sys_sendmsg+0x117/0x1e0 [ 2229.559577][T25961] ? __sys_sendmsg_sock+0x30/0x30 22:27:59 executing program 5: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x18f}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:27:59 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) (fail_nth: 1) [ 2229.564718][T25961] ? xfd_validate_state+0x5d/0x180 [ 2229.569909][T25961] ? syscall_enter_from_user_mode+0x26/0x80 [ 2229.575852][T25961] do_syscall_64+0x3f/0x110 [ 2229.580411][T25961] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2229.586350][T25961] RIP: 0033:0x7fedc2e7cae9 [ 2229.590840][T25961] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2229.610677][T25961] RSP: 002b:00007fedc3aef0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2229.619134][T25961] RAX: ffffffffffffffda RBX: 00007fedc2f9bf80 RCX: 00007fedc2e7cae9 [ 2229.627319][T25961] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2229.635320][T25961] RBP: 00007fedc2ec847a R08: 0000000000000000 R09: 0000000000000000 [ 2229.643326][T25961] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2229.651334][T25961] R13: 000000000000000b R14: 00007fedc2f9bf80 R15: 00007ffdb0854d38 [ 2229.659444][T25961] [ 2229.693997][T25961] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2229.726285][T25982] FAULT_INJECTION: forcing a failure. [ 2229.726285][T25982] name fail_usercopy, interval 1, probability 0, space 0, times 0 22:27:59 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x8}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2229.766474][T25982] CPU: 1 PID: 25982 Comm: syz-executor.5 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2229.776769][T25982] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2229.786950][T25982] Call Trace: [ 2229.790257][T25982] [ 2229.793214][T25982] dump_stack_lvl+0x125/0x1b0 [ 2229.797960][T25982] should_fail_ex+0x496/0x5b0 [ 2229.802706][T25982] _copy_from_user+0x30/0xf0 [ 2229.807449][T25982] copy_msghdr_from_user+0x99/0x160 [ 2229.812708][T25982] ? __copy_msghdr+0x460/0x460 [ 2229.817525][T25982] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2229.823553][T25982] ? find_held_lock+0x2d/0x110 [ 2229.828373][T25982] ___sys_sendmsg+0xff/0x1d0 [ 2229.833031][T25982] ? do_recvmmsg+0x740/0x740 [ 2229.837671][T25982] ? find_held_lock+0x2d/0x110 [ 2229.842525][T25982] ? __fget_light+0xe6/0x260 [ 2229.847183][T25982] __sys_sendmsg+0x117/0x1e0 [ 2229.851843][T25982] ? __sys_sendmsg_sock+0x30/0x30 [ 2229.856941][T25982] ? syscall_enter_from_user_mode+0x26/0x80 [ 2229.862893][T25982] do_syscall_64+0x3f/0x110 [ 2229.867456][T25982] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2229.873395][T25982] RIP: 0033:0x7efe64a7cae9 [ 2229.877866][T25982] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2229.897518][T25982] RSP: 002b:00007efe657b00c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2229.906063][T25982] RAX: ffffffffffffffda RBX: 00007efe64b9bf80 RCX: 00007efe64a7cae9 22:27:59 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0xa}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2229.914074][T25982] RDX: 000000000000c0fe RSI: 00000000200000c0 RDI: 0000000000000003 [ 2229.922079][T25982] RBP: 00007efe657b0120 R08: 0000000000000000 R09: 0000000000000000 [ 2229.930086][T25982] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 2229.938357][T25982] R13: 000000000000000b R14: 00007efe64b9bf80 R15: 00007fff7ecdbd18 [ 2229.946445][T25982] 22:28:00 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) (fail_nth: 2) [ 2230.001085][T25959] __nla_validate_parse: 12 callbacks suppressed [ 2230.001108][T25959] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. [ 2230.086821][T25992] FAULT_INJECTION: forcing a failure. [ 2230.086821][T25992] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 2230.103681][T25992] CPU: 0 PID: 25992 Comm: syz-executor.5 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2230.113808][T25992] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2230.123890][T25992] Call Trace: [ 2230.127218][T25992] [ 2230.130544][T25992] dump_stack_lvl+0x125/0x1b0 [ 2230.135336][T25992] should_fail_ex+0x496/0x5b0 [ 2230.140166][T25992] _copy_from_user+0x30/0xf0 [ 2230.144812][T25992] move_addr_to_kernel+0x68/0x150 [ 2230.149876][T25992] __copy_msghdr+0x382/0x460 [ 2230.154508][T25992] copy_msghdr_from_user+0xc2/0x160 [ 2230.159747][T25992] ? __copy_msghdr+0x460/0x460 [ 2230.164556][T25992] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2230.170583][T25992] ? find_held_lock+0x2d/0x110 [ 2230.175402][T25992] ___sys_sendmsg+0xff/0x1d0 [ 2230.180045][T25992] ? do_recvmmsg+0x740/0x740 [ 2230.184675][T25992] ? find_held_lock+0x2d/0x110 [ 2230.189519][T25992] ? __fget_light+0xe6/0x260 [ 2230.194163][T25992] __sys_sendmsg+0x117/0x1e0 [ 2230.198886][T25992] ? __sys_sendmsg_sock+0x30/0x30 [ 2230.203982][T25992] ? syscall_enter_from_user_mode+0x26/0x80 [ 2230.209923][T25992] do_syscall_64+0x3f/0x110 [ 2230.214475][T25992] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2230.220416][T25992] RIP: 0033:0x7efe64a7cae9 [ 2230.224944][T25992] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2230.244597][T25992] RSP: 002b:00007efe657b00c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2230.253061][T25992] RAX: ffffffffffffffda RBX: 00007efe64b9bf80 RCX: 00007efe64a7cae9 [ 2230.261077][T25992] RDX: 000000000000c0fe RSI: 00000000200000c0 RDI: 0000000000000003 [ 2230.269084][T25992] RBP: 00007efe657b0120 R08: 0000000000000000 R09: 0000000000000000 [ 2230.277178][T25992] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 2230.285357][T25992] R13: 000000000000000b R14: 00007efe64b9bf80 R15: 00007fff7ecdbd18 [ 2230.293392][T25992] [ 2230.308981][T25964] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2230.356223][T25964] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2230.365730][T25964] CPU: 1 PID: 25964 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2230.375835][T25964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2230.385923][T25964] Call Trace: [ 2230.389223][T25964] [ 2230.392445][T25964] dump_stack_lvl+0x125/0x1b0 [ 2230.397170][T25964] sysfs_warn_dup+0x7f/0xa0 [ 2230.401731][T25964] sysfs_create_dir_ns+0x247/0x2a0 [ 2230.406906][T25964] ? sysfs_create_mount_point+0xb0/0xb0 [ 2230.412588][T25964] ? spin_bug+0x1d0/0x1d0 [ 2230.416968][T25964] ? net_namespace+0x12/0x40 [ 2230.421586][T25964] ? device_namespace+0x8d/0xc0 [ 2230.426660][T25964] kobject_add_internal+0x2c8/0x960 [ 2230.431906][T25964] kobject_add+0x16f/0x240 [ 2230.436360][T25964] ? kset_create_and_add+0x190/0x190 [ 2230.441678][T25964] ? do_raw_spin_unlock+0x173/0x230 [ 2230.446909][T25964] ? kobject_put+0xbe/0x440 [ 2230.451462][T25964] device_add+0x289/0x1aa0 [ 2230.456073][T25964] ? device_initialize+0x510/0x510 [ 2230.461249][T25964] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2230.468256][T25964] ? __init_waitqueue_head+0xca/0x150 [ 2230.473657][T25964] netdev_register_kobject+0x183/0x3f0 [ 2230.479144][T25964] register_netdevice+0xbdf/0x14a0 [ 2230.484295][T25964] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2230.490216][T25964] veth_newlink+0x4ef/0xa00 [ 2230.495004][T25964] ? veth_set_features+0x2d0/0x2d0 [ 2230.500224][T25964] ? rtnl_create_link+0xc9c/0xfd0 [ 2230.505295][T25964] ? __rtnl_newlink+0x108a/0x1930 [ 2230.510346][T25964] ? rtnl_newlink+0x67/0xa0 [ 2230.514919][T25964] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2230.520305][T25964] ? alloc_netdev_mqs+0xee6/0x1290 [ 2230.525453][T25964] ? rtnl_create_link+0xa6d/0xfd0 [ 2230.530515][T25964] ? veth_set_features+0x2d0/0x2d0 [ 2230.535653][T25964] __rtnl_newlink+0x1173/0x1930 [ 2230.540538][T25964] ? rtnl_link_unregister+0x260/0x260 [ 2230.545972][T25964] rtnl_newlink+0x67/0xa0 [ 2230.550314][T25964] ? __rtnl_newlink+0x1930/0x1930 [ 2230.555351][T25964] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2230.560323][T25964] ? rtnl_getlink+0xb40/0xb40 [ 2230.565139][T25964] netlink_rcv_skb+0x16b/0x440 [ 2230.569924][T25964] ? rtnl_getlink+0xb40/0xb40 [ 2230.574887][T25964] ? netlink_ack+0x1370/0x1370 [ 2230.580035][T25964] ? netlink_deliver_tap+0x1a0/0xd00 [ 2230.585344][T25964] netlink_unicast+0x53b/0x810 [ 2230.590221][T25964] ? netlink_attachskb+0x880/0x880 [ 2230.595363][T25964] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2230.601272][T25964] ? __phys_addr_symbol+0x30/0x70 [ 2230.606316][T25964] ? __check_object_size+0x323/0x730 [ 2230.611639][T25964] netlink_sendmsg+0x93c/0xe40 [ 2230.616429][T25964] ? netlink_unicast+0x810/0x810 [ 2230.621388][T25964] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2230.626688][T25964] ? netlink_unicast+0x810/0x810 [ 2230.631644][T25964] __sock_sendmsg+0xd5/0x180 [ 2230.636260][T25964] ____sys_sendmsg+0x6ac/0x940 [ 2230.641035][T25964] ? copy_msghdr_from_user+0x10b/0x160 [ 2230.646519][T25964] ? kernel_sendmsg+0x50/0x50 [ 2230.651217][T25964] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2230.657236][T25964] ___sys_sendmsg+0x135/0x1d0 [ 2230.661938][T25964] ? do_recvmmsg+0x740/0x740 [ 2230.666549][T25964] ? find_held_lock+0x2d/0x110 [ 2230.671359][T25964] ? __fget_light+0xe6/0x260 [ 2230.675981][T25964] __sys_sendmsg+0x117/0x1e0 [ 2230.680595][T25964] ? __sys_sendmsg_sock+0x30/0x30 [ 2230.685637][T25964] ? xfd_validate_state+0x5d/0x180 [ 2230.690799][T25964] ? syscall_enter_from_user_mode+0x26/0x80 [ 2230.696717][T25964] do_syscall_64+0x3f/0x110 [ 2230.701241][T25964] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2230.707153][T25964] RIP: 0033:0x7f70d3c7cae9 [ 2230.711582][T25964] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2230.731488][T25964] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2230.739954][T25964] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2230.747941][T25964] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2230.755923][T25964] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2230.763916][T25964] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2230.771894][T25964] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2230.779920][T25964] [ 2230.811566][T25964] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2230.838596][T25965] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.2'. [ 2230.848985][T25966] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.0'. [ 2230.860097][T25967] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2230.873120][T25967] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2230.882546][T25967] CPU: 0 PID: 25967 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2230.892654][T25967] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2230.902831][T25967] Call Trace: [ 2230.906138][T25967] [ 2230.909108][T25967] dump_stack_lvl+0x125/0x1b0 [ 2230.913843][T25967] sysfs_warn_dup+0x7f/0xa0 [ 2230.918396][T25967] sysfs_create_dir_ns+0x247/0x2a0 [ 2230.923539][T25967] ? sysfs_create_mount_point+0xb0/0xb0 [ 2230.929113][T25967] ? spin_bug+0x1d0/0x1d0 [ 2230.933482][T25967] ? net_namespace+0x12/0x40 [ 2230.938083][T25967] ? device_namespace+0x8d/0xc0 [ 2230.942957][T25967] kobject_add_internal+0x2c8/0x960 [ 2230.948210][T25967] kobject_add+0x16f/0x240 [ 2230.952687][T25967] ? kset_create_and_add+0x190/0x190 [ 2230.958003][T25967] ? do_raw_spin_unlock+0x173/0x230 [ 2230.963230][T25967] ? kobject_put+0xbe/0x440 [ 2230.967777][T25967] device_add+0x289/0x1aa0 [ 2230.972233][T25967] ? device_initialize+0x510/0x510 [ 2230.977401][T25967] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2230.984313][T25967] ? __init_waitqueue_head+0xca/0x150 [ 2230.989736][T25967] netdev_register_kobject+0x183/0x3f0 [ 2230.995314][T25967] register_netdevice+0xbdf/0x14a0 [ 2231.000484][T25967] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2231.006577][T25967] ? validate_linkmsg+0x6fc/0x9c0 [ 2231.011718][T25967] br_dev_newlink+0x27/0x110 [ 2231.016342][T25967] ? br_changelink+0x1760/0x1760 [ 2231.021396][T25967] __rtnl_newlink+0x1173/0x1930 [ 2231.026395][T25967] ? rtnl_link_unregister+0x260/0x260 [ 2231.031827][T25967] rtnl_newlink+0x67/0xa0 [ 2231.036172][T25967] ? __rtnl_newlink+0x1930/0x1930 [ 2231.041214][T25967] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2231.046255][T25967] ? rtnl_getlink+0xb40/0xb40 [ 2231.050975][T25967] netlink_rcv_skb+0x16b/0x440 [ 2231.055771][T25967] ? rtnl_getlink+0xb40/0xb40 [ 2231.060471][T25967] ? netlink_ack+0x1370/0x1370 [ 2231.065275][T25967] ? netlink_deliver_tap+0x1a0/0xd00 [ 2231.070598][T25967] netlink_unicast+0x53b/0x810 [ 2231.075415][T25967] ? netlink_attachskb+0x880/0x880 [ 2231.080731][T25967] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2231.086743][T25967] ? __phys_addr_symbol+0x30/0x70 [ 2231.091790][T25967] ? __check_object_size+0x323/0x730 [ 2231.097111][T25967] netlink_sendmsg+0x93c/0xe40 [ 2231.101902][T25967] ? netlink_unicast+0x810/0x810 [ 2231.106861][T25967] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2231.112159][T25967] ? netlink_unicast+0x810/0x810 [ 2231.117132][T25967] __sock_sendmsg+0xd5/0x180 [ 2231.121737][T25967] ____sys_sendmsg+0x6ac/0x940 [ 2231.126604][T25967] ? copy_msghdr_from_user+0x10b/0x160 [ 2231.132205][T25967] ? kernel_sendmsg+0x50/0x50 [ 2231.136991][T25967] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2231.143004][T25967] ___sys_sendmsg+0x135/0x1d0 [ 2231.147706][T25967] ? do_recvmmsg+0x740/0x740 [ 2231.152316][T25967] ? find_held_lock+0x2d/0x110 [ 2231.157130][T25967] ? __fget_light+0xe6/0x260 [ 2231.161743][T25967] __sys_sendmsg+0x117/0x1e0 [ 2231.166361][T25967] ? __sys_sendmsg_sock+0x30/0x30 [ 2231.171399][T25967] ? xfd_validate_state+0x5d/0x180 [ 2231.176552][T25967] ? syscall_enter_from_user_mode+0x26/0x80 [ 2231.182474][T25967] do_syscall_64+0x3f/0x110 [ 2231.186999][T25967] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2231.192905][T25967] RIP: 0033:0x7f874a47cae9 [ 2231.197327][T25967] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2231.216959][T25967] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2231.225405][T25967] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2231.233404][T25967] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2231.241397][T25967] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2231.249732][T25967] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2231.257713][T25967] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2231.265721][T25967] [ 2231.288416][T25967] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2231.363198][T25968] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. 22:28:01 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) (fail_nth: 3) 22:28:01 executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x9, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:01 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0xb}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:01 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000102a900"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:01 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x4, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:01 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0xc}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) [ 2231.509536][T25995] FAULT_INJECTION: forcing a failure. [ 2231.509536][T25995] name failslab, interval 1, probability 0, space 0, times 0 [ 2231.522346][T25995] CPU: 0 PID: 25995 Comm: syz-executor.5 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2231.532458][T25995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2231.535949][T26000] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2231.542530][T25995] Call Trace: [ 2231.542547][T25995] [ 2231.542558][T25995] dump_stack_lvl+0x125/0x1b0 [ 2231.562898][T25995] should_fail_ex+0x496/0x5b0 [ 2231.567636][T25995] ? do_raw_spin_lock+0x12e/0x2b0 [ 2231.572718][T25995] should_failslab+0x9/0x20 [ 2231.574880][T26000] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2231.577332][T25995] kmem_cache_alloc+0x69/0x380 [ 2231.577378][T25995] sctp_get_port_local+0xba4/0x1640 [ 2231.597471][T25995] ? sctp_skb_set_owner_r_frag+0x3f0/0x3f0 [ 2231.603370][T25995] ? sctp_bind_addr_match+0x198/0x2f0 [ 2231.608797][T25995] sctp_do_bind+0x21d/0x6f0 [ 2231.613360][T25995] sctp_connect_new_asoc+0x5f6/0x790 [ 2231.618710][T25995] ? sctp_bind+0x110/0x110 [ 2231.623261][T25995] ? mark_held_locks+0x9f/0xe0 [ 2231.628079][T25995] ? bpf_lsm_sctp_bind_connect+0x9/0x10 [ 2231.633686][T25995] sctp_sendmsg+0x15c2/0x1e80 [ 2231.638433][T25995] ? sctp_setsockopt+0xb7e0/0xb7e0 [ 2231.643598][T25995] ? preempt_count_sub+0x150/0x150 [ 2231.648749][T25995] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2231.654709][T25995] ? aa_af_perm+0x250/0x250 [ 2231.659257][T25995] ? import_ubuf+0x1a4/0x200 [ 2231.663921][T25995] inet_sendmsg+0x9d/0xe0 [ 2231.668294][T25995] ? inet_send_prepare+0x530/0x530 [ 2231.673446][T25995] __sock_sendmsg+0xd5/0x180 [ 2231.678088][T25995] ____sys_sendmsg+0x6ac/0x940 [ 2231.683081][T25995] ? copy_msghdr_from_user+0x10b/0x160 [ 2231.688592][T25995] ? kernel_sendmsg+0x50/0x50 [ 2231.693405][T25995] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2231.699447][T25995] ? find_held_lock+0x2d/0x110 [ 2231.704281][T25995] ___sys_sendmsg+0x135/0x1d0 [ 2231.709005][T25995] ? do_recvmmsg+0x740/0x740 [ 2231.713916][T25995] ? find_held_lock+0x2d/0x110 [ 2231.718779][T25995] ? __fget_light+0xe6/0x260 [ 2231.723492][T25995] __sys_sendmsg+0x117/0x1e0 [ 2231.728157][T25995] ? __sys_sendmsg_sock+0x30/0x30 [ 2231.733344][T25995] ? syscall_enter_from_user_mode+0x26/0x80 [ 2231.739410][T25995] do_syscall_64+0x3f/0x110 [ 2231.743983][T25995] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2231.750024][T25995] RIP: 0033:0x7efe64a7cae9 [ 2231.754474][T25995] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2231.774298][T25995] RSP: 002b:00007efe657b00c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2231.782848][T25995] RAX: ffffffffffffffda RBX: 00007efe64b9bf80 RCX: 00007efe64a7cae9 [ 2231.790861][T25995] RDX: 000000000000c0fe RSI: 00000000200000c0 RDI: 0000000000000003 [ 2231.798867][T25995] RBP: 00007efe657b0120 R08: 0000000000000000 R09: 0000000000000000 [ 2231.806966][T25995] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 2231.815006][T25995] R13: 000000000000000b R14: 00007efe64b9bf80 R15: 00007fff7ecdbd18 [ 2231.823032][T25995] 22:28:01 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0xf}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2231.873741][T26000] CPU: 0 PID: 26000 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2231.883872][T26000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2231.893977][T26000] Call Trace: [ 2231.897299][T26000] [ 2231.900269][T26000] dump_stack_lvl+0x125/0x1b0 [ 2231.905006][T26000] sysfs_warn_dup+0x7f/0xa0 [ 2231.909584][T26000] sysfs_create_dir_ns+0x247/0x2a0 [ 2231.914758][T26000] ? sysfs_create_mount_point+0xb0/0xb0 [ 2231.920372][T26000] ? spin_bug+0x1d0/0x1d0 [ 2231.924814][T26000] ? net_namespace+0x12/0x40 [ 2231.929447][T26000] ? device_namespace+0x8d/0xc0 [ 2231.934450][T26000] kobject_add_internal+0x2c8/0x960 [ 2231.939726][T26000] kobject_add+0x16f/0x240 [ 2231.944183][T26000] ? kset_create_and_add+0x190/0x190 [ 2231.949510][T26000] ? do_raw_spin_unlock+0x173/0x230 [ 2231.954827][T26000] ? kobject_put+0xbe/0x440 [ 2231.959374][T26000] device_add+0x289/0x1aa0 [ 2231.963812][T26000] ? device_initialize+0x510/0x510 [ 2231.968990][T26000] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2231.976586][T26000] ? __init_waitqueue_head+0xca/0x150 [ 2231.982077][T26000] netdev_register_kobject+0x183/0x3f0 [ 2231.987657][T26000] register_netdevice+0xbdf/0x14a0 [ 2231.992797][T26000] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2231.998797][T26000] ? validate_linkmsg+0x6fc/0x9c0 [ 2232.003874][T26000] br_dev_newlink+0x27/0x110 [ 2232.008512][T26000] ? br_changelink+0x1760/0x1760 [ 2232.013484][T26000] __rtnl_newlink+0x1173/0x1930 [ 2232.018378][T26000] ? rtnl_link_unregister+0x260/0x260 [ 2232.023900][T26000] rtnl_newlink+0x67/0xa0 [ 2232.028248][T26000] ? __rtnl_newlink+0x1930/0x1930 [ 2232.033297][T26000] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2232.038265][T26000] ? rtnl_getlink+0xb40/0xb40 [ 2232.043005][T26000] netlink_rcv_skb+0x16b/0x440 [ 2232.047799][T26000] ? rtnl_getlink+0xb40/0xb40 [ 2232.052579][T26000] ? netlink_ack+0x1370/0x1370 [ 2232.057387][T26000] ? netlink_deliver_tap+0x1a0/0xd00 [ 2232.062698][T26000] netlink_unicast+0x53b/0x810 [ 2232.067491][T26000] ? netlink_attachskb+0x880/0x880 [ 2232.072625][T26000] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2232.078538][T26000] ? __phys_addr_symbol+0x30/0x70 [ 2232.083581][T26000] ? __check_object_size+0x323/0x730 [ 2232.088906][T26000] netlink_sendmsg+0x93c/0xe40 [ 2232.093695][T26000] ? netlink_unicast+0x810/0x810 [ 2232.098668][T26000] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2232.104056][T26000] ? netlink_unicast+0x810/0x810 [ 2232.109102][T26000] __sock_sendmsg+0xd5/0x180 [ 2232.113879][T26000] ____sys_sendmsg+0x6ac/0x940 [ 2232.118658][T26000] ? copy_msghdr_from_user+0x10b/0x160 [ 2232.124228][T26000] ? kernel_sendmsg+0x50/0x50 [ 2232.129064][T26000] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2232.135253][T26000] ___sys_sendmsg+0x135/0x1d0 [ 2232.139969][T26000] ? do_recvmmsg+0x740/0x740 [ 2232.144594][T26000] ? find_held_lock+0x2d/0x110 [ 2232.149410][T26000] ? __fget_light+0xe6/0x260 [ 2232.154377][T26000] __sys_sendmsg+0x117/0x1e0 [ 2232.158985][T26000] ? __sys_sendmsg_sock+0x30/0x30 [ 2232.164025][T26000] ? xfd_validate_state+0x5d/0x180 [ 2232.169278][T26000] ? syscall_enter_from_user_mode+0x26/0x80 [ 2232.175191][T26000] do_syscall_64+0x3f/0x110 [ 2232.179776][T26000] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2232.185693][T26000] RIP: 0033:0x7f874a47cae9 [ 2232.190115][T26000] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2232.209823][T26000] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2232.218249][T26000] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2232.226321][T26000] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2232.234392][T26000] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2232.242377][T26000] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2232.250676][T26000] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2232.258763][T26000] [ 2232.279010][T26000] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:02 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) (fail_nth: 4) 22:28:02 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2232.425709][T26019] FAULT_INJECTION: forcing a failure. [ 2232.425709][T26019] name failslab, interval 1, probability 0, space 0, times 0 [ 2232.442045][T26003] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2232.465565][T26008] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. [ 2232.490083][T26019] CPU: 1 PID: 26019 Comm: syz-executor.5 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2232.500236][T26019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2232.510328][T26019] Call Trace: [ 2232.513629][T26019] [ 2232.516603][T26019] dump_stack_lvl+0x125/0x1b0 [ 2232.521338][T26019] should_fail_ex+0x496/0x5b0 [ 2232.526082][T26019] should_failslab+0x9/0x20 [ 2232.530630][T26019] __kmem_cache_alloc_node+0x6b/0x310 [ 2232.536065][T26019] ? sctp_add_bind_addr+0x9d/0x3e0 [ 2232.541227][T26019] kmalloc_trace+0x25/0xe0 [ 2232.545694][T26019] sctp_add_bind_addr+0x9d/0x3e0 [ 2232.550681][T26019] sctp_do_bind+0x2d0/0x6f0 [ 2232.555253][T26019] sctp_connect_new_asoc+0x5f6/0x790 [ 2232.560601][T26019] ? sctp_bind+0x110/0x110 [ 2232.565075][T26019] ? mark_held_locks+0x9f/0xe0 [ 2232.569873][T26019] ? bpf_lsm_sctp_bind_connect+0x9/0x10 [ 2232.575486][T26019] sctp_sendmsg+0x15c2/0x1e80 [ 2232.580294][T26019] ? sctp_setsockopt+0xb7e0/0xb7e0 [ 2232.587433][T26019] ? preempt_count_sub+0x150/0x150 [ 2232.592559][T26019] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2232.598485][T26019] ? aa_af_perm+0x250/0x250 [ 2232.603011][T26019] ? import_ubuf+0x1a4/0x200 [ 2232.607640][T26019] inet_sendmsg+0x9d/0xe0 [ 2232.612077][T26019] ? inet_send_prepare+0x530/0x530 [ 2232.617208][T26019] __sock_sendmsg+0xd5/0x180 [ 2232.621820][T26019] ____sys_sendmsg+0x6ac/0x940 [ 2232.626602][T26019] ? copy_msghdr_from_user+0x10b/0x160 [ 2232.632082][T26019] ? kernel_sendmsg+0x50/0x50 [ 2232.636781][T26019] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2232.642791][T26019] ? find_held_lock+0x2d/0x110 [ 2232.647589][T26019] ___sys_sendmsg+0x135/0x1d0 [ 2232.652306][T26019] ? do_recvmmsg+0x740/0x740 [ 2232.656939][T26019] ? find_held_lock+0x2d/0x110 [ 2232.661767][T26019] ? __fget_light+0xe6/0x260 [ 2232.666401][T26019] __sys_sendmsg+0x117/0x1e0 [ 2232.671105][T26019] ? __sys_sendmsg_sock+0x30/0x30 [ 2232.676175][T26019] ? syscall_enter_from_user_mode+0x26/0x80 [ 2232.682353][T26019] do_syscall_64+0x3f/0x110 [ 2232.686951][T26019] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2232.692895][T26019] RIP: 0033:0x7efe64a7cae9 [ 2232.697335][T26019] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2232.716972][T26019] RSP: 002b:00007efe657b00c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2232.725418][T26019] RAX: ffffffffffffffda RBX: 00007efe64b9bf80 RCX: 00007efe64a7cae9 [ 2232.733415][T26019] RDX: 000000000000c0fe RSI: 00000000200000c0 RDI: 0000000000000003 [ 2232.741406][T26019] RBP: 00007efe657b0120 R08: 0000000000000000 R09: 0000000000000000 [ 2232.749399][T26019] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 2232.757390][T26019] R13: 000000000000000b R14: 00007efe64b9bf80 R15: 00007fff7ecdbd18 [ 2232.765565][T26019] 22:28:02 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000103a900"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:02 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) (fail_nth: 5) [ 2232.866225][T26009] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.2'. [ 2232.904188][T26006] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2232.920127][T26006] CPU: 0 PID: 26006 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2232.930257][T26006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2232.940434][T26006] Call Trace: [ 2232.943754][T26006] [ 2232.946707][T26006] dump_stack_lvl+0x125/0x1b0 [ 2232.951436][T26006] sysfs_warn_dup+0x7f/0xa0 [ 2232.956130][T26006] sysfs_create_dir_ns+0x247/0x2a0 [ 2232.961575][T26006] ? sysfs_create_mount_point+0xb0/0xb0 [ 2232.967189][T26006] ? spin_bug+0x1d0/0x1d0 [ 2232.971597][T26006] ? net_namespace+0x12/0x40 [ 2232.976318][T26006] ? device_namespace+0x8d/0xc0 [ 2232.981227][T26006] kobject_add_internal+0x2c8/0x960 [ 2232.986581][T26006] kobject_add+0x16f/0x240 [ 2232.991322][T26006] ? kset_create_and_add+0x190/0x190 [ 2232.996667][T26006] ? do_raw_spin_unlock+0x173/0x230 [ 2233.001921][T26006] ? kobject_put+0xbe/0x440 [ 2233.006575][T26006] device_add+0x289/0x1aa0 [ 2233.011041][T26006] ? device_initialize+0x510/0x510 [ 2233.016208][T26006] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2233.023110][T26006] ? __init_waitqueue_head+0xca/0x150 [ 2233.028539][T26006] netdev_register_kobject+0x183/0x3f0 [ 2233.034064][T26006] register_netdevice+0xbdf/0x14a0 [ 2233.037559][T26028] FAULT_INJECTION: forcing a failure. [ 2233.037559][T26028] name failslab, interval 1, probability 0, space 0, times 0 [ 2233.039204][T26006] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2233.057761][T26006] veth_newlink+0x4ef/0xa00 [ 2233.062312][T26006] ? veth_set_features+0x2d0/0x2d0 [ 2233.067462][T26006] ? rtnl_create_link+0xc9c/0xfd0 [ 2233.072538][T26006] ? __rtnl_newlink+0x108a/0x1930 [ 2233.077949][T26006] ? rtnl_newlink+0x67/0xa0 [ 2233.082636][T26006] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2233.087980][T26006] ? alloc_netdev_mqs+0xee6/0x1290 [ 2233.095754][T26006] ? rtnl_create_link+0xa6d/0xfd0 [ 2233.100843][T26006] ? veth_set_features+0x2d0/0x2d0 [ 2233.105995][T26006] __rtnl_newlink+0x1173/0x1930 [ 2233.110905][T26006] ? rtnl_link_unregister+0x260/0x260 [ 2233.116353][T26006] rtnl_newlink+0x67/0xa0 [ 2233.120710][T26006] ? __rtnl_newlink+0x1930/0x1930 [ 2233.125766][T26006] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2233.130751][T26006] ? rtnl_getlink+0xb40/0xb40 [ 2233.135481][T26006] netlink_rcv_skb+0x16b/0x440 [ 2233.140375][T26006] ? rtnl_getlink+0xb40/0xb40 [ 2233.145092][T26006] ? netlink_ack+0x1370/0x1370 [ 2233.149933][T26006] ? netlink_deliver_tap+0x1a0/0xd00 [ 2233.155266][T26006] netlink_unicast+0x53b/0x810 [ 2233.160073][T26006] ? netlink_attachskb+0x880/0x880 [ 2233.165227][T26006] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2233.171162][T26006] ? __phys_addr_symbol+0x30/0x70 [ 2233.176227][T26006] ? __check_object_size+0x323/0x730 [ 2233.181567][T26006] netlink_sendmsg+0x93c/0xe40 [ 2233.186551][T26006] ? netlink_unicast+0x810/0x810 [ 2233.191555][T26006] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2233.196979][T26006] ? netlink_unicast+0x810/0x810 [ 2233.202127][T26006] __sock_sendmsg+0xd5/0x180 [ 2233.206773][T26006] ____sys_sendmsg+0x6ac/0x940 [ 2233.211665][T26006] ? copy_msghdr_from_user+0x10b/0x160 [ 2233.217158][T26006] ? kernel_sendmsg+0x50/0x50 [ 2233.221879][T26006] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2233.227922][T26006] ___sys_sendmsg+0x135/0x1d0 [ 2233.232647][T26006] ? do_recvmmsg+0x740/0x740 [ 2233.237454][T26006] ? find_held_lock+0x2d/0x110 [ 2233.242291][T26006] ? __fget_light+0xe6/0x260 [ 2233.246929][T26006] __sys_sendmsg+0x117/0x1e0 [ 2233.251566][T26006] ? __sys_sendmsg_sock+0x30/0x30 [ 2233.256635][T26006] ? xfd_validate_state+0x5d/0x180 [ 2233.261823][T26006] ? syscall_enter_from_user_mode+0x26/0x80 [ 2233.267767][T26006] do_syscall_64+0x3f/0x110 [ 2233.272406][T26006] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2233.278461][T26006] RIP: 0033:0x7f70d3c7cae9 [ 2233.282993][T26006] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2233.302772][T26006] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2233.311227][T26006] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2233.319319][T26006] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2233.328524][T26006] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2233.336523][T26006] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2233.344615][T26006] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2233.352979][T26006] 22:28:03 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x2}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2233.365830][T26006] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2233.391526][T26028] CPU: 1 PID: 26028 Comm: syz-executor.5 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2233.401668][T26028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2233.411759][T26028] Call Trace: [ 2233.415070][T26028] [ 2233.418043][T26028] dump_stack_lvl+0x125/0x1b0 [ 2233.422784][T26028] should_fail_ex+0x496/0x5b0 [ 2233.427528][T26028] should_failslab+0x9/0x20 [ 2233.432096][T26028] __kmem_cache_alloc_node+0x6b/0x310 [ 2233.437513][T26028] ? sctp_association_new+0x97/0x2a90 [ 2233.443021][T26028] ? kasan_set_track+0x25/0x30 [ 2233.447841][T26028] kmalloc_trace+0x25/0xe0 [ 2233.452312][T26028] sctp_association_new+0x97/0x2a90 [ 2233.457556][T26028] ? sctp_do_bind+0x3ad/0x6f0 [ 2233.462275][T26028] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2233.468238][T26028] ? sctp_v4_scope+0x171/0x1a0 [ 2233.473046][T26028] sctp_connect_new_asoc+0x1b7/0x790 [ 2233.478480][T26028] ? sctp_bind+0x110/0x110 [ 2233.482974][T26028] ? mark_held_locks+0x9f/0xe0 [ 2233.487792][T26028] ? bpf_lsm_sctp_bind_connect+0x9/0x10 [ 2233.493388][T26028] sctp_sendmsg+0x15c2/0x1e80 [ 2233.498122][T26028] ? sctp_setsockopt+0xb7e0/0xb7e0 [ 2233.503283][T26028] ? preempt_count_sub+0x150/0x150 [ 2233.508524][T26028] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2233.514485][T26028] ? aa_af_perm+0x250/0x250 [ 2233.520165][T26028] ? import_ubuf+0x1a4/0x200 [ 2233.524830][T26028] inet_sendmsg+0x9d/0xe0 [ 2233.529207][T26028] ? inet_send_prepare+0x530/0x530 [ 2233.534386][T26028] __sock_sendmsg+0xd5/0x180 [ 2233.539017][T26028] ____sys_sendmsg+0x6ac/0x940 [ 2233.543841][T26028] ? copy_msghdr_from_user+0x10b/0x160 [ 2233.549358][T26028] ? kernel_sendmsg+0x50/0x50 [ 2233.554085][T26028] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2233.560111][T26028] ? find_held_lock+0x2d/0x110 [ 2233.564928][T26028] ___sys_sendmsg+0x135/0x1d0 [ 2233.569655][T26028] ? do_recvmmsg+0x740/0x740 [ 2233.574292][T26028] ? find_held_lock+0x2d/0x110 [ 2233.579144][T26028] ? __fget_light+0xe6/0x260 [ 2233.583791][T26028] __sys_sendmsg+0x117/0x1e0 [ 2233.588424][T26028] ? __sys_sendmsg_sock+0x30/0x30 [ 2233.593516][T26028] ? syscall_enter_from_user_mode+0x26/0x80 [ 2233.599454][T26028] do_syscall_64+0x3f/0x110 [ 2233.604195][T26028] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2233.610131][T26028] RIP: 0033:0x7efe64a7cae9 [ 2233.614572][T26028] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2233.634478][T26028] RSP: 002b:00007efe657b00c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2233.643023][T26028] RAX: ffffffffffffffda RBX: 00007efe64b9bf80 RCX: 00007efe64a7cae9 [ 2233.651118][T26028] RDX: 000000000000c0fe RSI: 00000000200000c0 RDI: 0000000000000003 [ 2233.659121][T26028] RBP: 00007efe657b0120 R08: 0000000000000000 R09: 0000000000000000 [ 2233.667213][T26028] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 2233.675224][T26028] R13: 000000000000000b R14: 00007efe64b9bf80 R15: 00007fff7ecdbd18 [ 2233.683249][T26028] [ 2233.738801][T25999] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2233.748291][T25999] CPU: 1 PID: 25999 Comm: syz-executor.0 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2233.758395][T25999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2233.768481][T25999] Call Trace: [ 2233.771868][T25999] [ 2233.774830][T25999] dump_stack_lvl+0x125/0x1b0 [ 2233.779614][T25999] sysfs_warn_dup+0x7f/0xa0 [ 2233.784344][T25999] sysfs_create_dir_ns+0x247/0x2a0 [ 2233.789532][T25999] ? sysfs_create_mount_point+0xb0/0xb0 [ 2233.795158][T25999] ? spin_bug+0x1d0/0x1d0 [ 2233.799553][T25999] ? net_namespace+0x12/0x40 [ 2233.804181][T25999] ? device_namespace+0x8d/0xc0 [ 2233.809093][T25999] kobject_add_internal+0x2c8/0x960 [ 2233.814336][T25999] kobject_add+0x16f/0x240 [ 2233.818798][T25999] ? kset_create_and_add+0x190/0x190 [ 2233.824115][T25999] ? do_raw_spin_unlock+0x173/0x230 [ 2233.829373][T25999] ? kobject_put+0xbe/0x440 [ 2233.833952][T25999] device_add+0x289/0x1aa0 [ 2233.838541][T25999] ? device_initialize+0x510/0x510 [ 2233.843733][T25999] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2233.850631][T25999] ? __init_waitqueue_head+0xca/0x150 [ 2233.856130][T25999] netdev_register_kobject+0x183/0x3f0 [ 2233.861649][T25999] register_netdevice+0xbdf/0x14a0 [ 2233.866828][T25999] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2233.872756][T25999] veth_newlink+0x4ef/0xa00 [ 2233.877289][T25999] ? veth_set_features+0x2d0/0x2d0 [ 2233.882422][T25999] ? rtnl_create_link+0xc9c/0xfd0 [ 2233.887499][T25999] ? __rtnl_newlink+0x108a/0x1930 [ 2233.892585][T25999] ? rtnl_newlink+0x67/0xa0 [ 2233.897159][T25999] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2233.902391][T25999] ? alloc_netdev_mqs+0xee6/0x1290 [ 2233.908316][T25999] ? rtnl_create_link+0xa6d/0xfd0 [ 2233.913382][T25999] ? veth_set_features+0x2d0/0x2d0 [ 2233.918547][T25999] __rtnl_newlink+0x1173/0x1930 [ 2233.923463][T25999] ? rtnl_link_unregister+0x260/0x260 [ 2233.928911][T25999] rtnl_newlink+0x67/0xa0 [ 2233.933278][T25999] ? __rtnl_newlink+0x1930/0x1930 [ 2233.938460][T25999] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2233.943487][T25999] ? rtnl_getlink+0xb40/0xb40 [ 2233.948208][T25999] netlink_rcv_skb+0x16b/0x440 [ 2233.953084][T25999] ? rtnl_getlink+0xb40/0xb40 [ 2233.957788][T25999] ? netlink_ack+0x1370/0x1370 [ 2233.962590][T25999] ? netlink_deliver_tap+0x1a0/0xd00 [ 2233.967910][T25999] netlink_unicast+0x53b/0x810 [ 2233.972700][T25999] ? netlink_attachskb+0x880/0x880 [ 2233.978248][T25999] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2233.984798][T25999] ? __phys_addr_symbol+0x30/0x70 [ 2233.989870][T25999] ? __check_object_size+0x323/0x730 [ 2233.995197][T25999] netlink_sendmsg+0x93c/0xe40 [ 2234.000079][T25999] ? netlink_unicast+0x810/0x810 [ 2234.005044][T25999] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2234.010348][T25999] ? netlink_unicast+0x810/0x810 [ 2234.015324][T25999] __sock_sendmsg+0xd5/0x180 [ 2234.019934][T25999] ____sys_sendmsg+0x6ac/0x940 [ 2234.024712][T25999] ? copy_msghdr_from_user+0x10b/0x160 [ 2234.030197][T25999] ? kernel_sendmsg+0x50/0x50 [ 2234.034899][T25999] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2234.040943][T25999] ___sys_sendmsg+0x135/0x1d0 [ 2234.045641][T25999] ? do_recvmmsg+0x740/0x740 [ 2234.050273][T25999] ? find_held_lock+0x2d/0x110 [ 2234.055107][T25999] ? __fget_light+0xe6/0x260 [ 2234.059755][T25999] __sys_sendmsg+0x117/0x1e0 [ 2234.064390][T25999] ? __sys_sendmsg_sock+0x30/0x30 [ 2234.069533][T25999] ? xfd_validate_state+0x5d/0x180 [ 2234.074914][T25999] ? syscall_enter_from_user_mode+0x26/0x80 [ 2234.080934][T25999] do_syscall_64+0x3f/0x110 [ 2234.085846][T25999] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2234.091777][T25999] RIP: 0033:0x7fedc2e7cae9 [ 2234.096210][T25999] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2234.116367][T25999] RSP: 002b:00007fedc3aef0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2234.124893][T25999] RAX: ffffffffffffffda RBX: 00007fedc2f9bf80 RCX: 00007fedc2e7cae9 [ 2234.133054][T25999] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2234.141036][T25999] RBP: 00007fedc2ec847a R08: 0000000000000000 R09: 0000000000000000 [ 2234.149023][T25999] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2234.157011][T25999] R13: 000000000000000b R14: 00007fedc2f9bf80 R15: 00007ffdb0854d38 [ 2234.165019][T25999] [ 2234.177640][T25999] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2234.256997][T26026] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2234.269596][T26026] CPU: 0 PID: 26026 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2234.279811][T26026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2234.289991][T26026] Call Trace: [ 2234.293305][T26026] [ 2234.296269][T26026] dump_stack_lvl+0x125/0x1b0 [ 2234.301106][T26026] sysfs_warn_dup+0x7f/0xa0 [ 2234.305677][T26026] sysfs_create_dir_ns+0x247/0x2a0 [ 2234.310855][T26026] ? sysfs_create_mount_point+0xb0/0xb0 [ 2234.316463][T26026] ? spin_bug+0x1d0/0x1d0 [ 2234.320862][T26026] ? net_namespace+0x12/0x40 [ 2234.325493][T26026] ? device_namespace+0x8d/0xc0 [ 2234.330560][T26026] kobject_add_internal+0x2c8/0x960 [ 2234.335807][T26026] kobject_add+0x16f/0x240 [ 2234.340258][T26026] ? kset_create_and_add+0x190/0x190 [ 2234.345582][T26026] ? do_raw_spin_unlock+0x173/0x230 [ 2234.350817][T26026] ? kobject_put+0xbe/0x440 [ 2234.355367][T26026] device_add+0x289/0x1aa0 [ 2234.359809][T26026] ? device_initialize+0x510/0x510 [ 2234.364953][T26026] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2234.371920][T26026] ? __init_waitqueue_head+0xca/0x150 [ 2234.377411][T26026] netdev_register_kobject+0x183/0x3f0 [ 2234.382902][T26026] register_netdevice+0xbdf/0x14a0 [ 2234.388390][T26026] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2234.394308][T26026] ? validate_linkmsg+0x6fc/0x9c0 [ 2234.399456][T26026] br_dev_newlink+0x27/0x110 [ 2234.404114][T26026] ? br_changelink+0x1760/0x1760 [ 2234.409250][T26026] __rtnl_newlink+0x1173/0x1930 [ 2234.414150][T26026] ? rtnl_link_unregister+0x260/0x260 [ 2234.419571][T26026] rtnl_newlink+0x67/0xa0 [ 2234.423922][T26026] ? __rtnl_newlink+0x1930/0x1930 [ 2234.428962][T26026] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2234.433922][T26026] ? rtnl_getlink+0xb40/0xb40 [ 2234.438628][T26026] netlink_rcv_skb+0x16b/0x440 [ 2234.443448][T26026] ? rtnl_getlink+0xb40/0xb40 [ 2234.448141][T26026] ? netlink_ack+0x1370/0x1370 [ 2234.452940][T26026] ? netlink_deliver_tap+0x1a0/0xd00 [ 2234.458338][T26026] netlink_unicast+0x53b/0x810 [ 2234.463141][T26026] ? netlink_attachskb+0x880/0x880 [ 2234.468270][T26026] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2234.474337][T26026] ? __phys_addr_symbol+0x30/0x70 [ 2234.479673][T26026] ? __check_object_size+0x323/0x730 [ 2234.485106][T26026] netlink_sendmsg+0x93c/0xe40 [ 2234.489909][T26026] ? netlink_unicast+0x810/0x810 [ 2234.494970][T26026] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2234.500377][T26026] ? netlink_unicast+0x810/0x810 [ 2234.505358][T26026] __sock_sendmsg+0xd5/0x180 [ 2234.509970][T26026] ____sys_sendmsg+0x6ac/0x940 [ 2234.514777][T26026] ? copy_msghdr_from_user+0x10b/0x160 [ 2234.520277][T26026] ? kernel_sendmsg+0x50/0x50 [ 2234.525077][T26026] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2234.531405][T26026] ___sys_sendmsg+0x135/0x1d0 [ 2234.536124][T26026] ? do_recvmmsg+0x740/0x740 [ 2234.540752][T26026] ? find_held_lock+0x2d/0x110 [ 2234.545575][T26026] ? __fget_light+0xe6/0x260 [ 2234.550199][T26026] __sys_sendmsg+0x117/0x1e0 [ 2234.554808][T26026] ? __sys_sendmsg_sock+0x30/0x30 [ 2234.559859][T26026] ? xfd_validate_state+0x5d/0x180 [ 2234.565054][T26026] ? syscall_enter_from_user_mode+0x26/0x80 [ 2234.570966][T26026] do_syscall_64+0x3f/0x110 [ 2234.575493][T26026] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2234.581401][T26026] RIP: 0033:0x7f874a47cae9 [ 2234.585914][T26026] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2234.605639][T26026] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2234.614159][T26026] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2234.622147][T26026] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2234.630137][T26026] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2234.638116][T26026] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2234.646093][T26026] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2234.654094][T26026] 22:28:04 executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x9, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:04 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x3}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:04 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) (fail_nth: 6) 22:28:04 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x4, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:04 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0xe}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) [ 2234.688986][T26026] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:04 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) (fail_nth: 7) 22:28:04 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x4}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2234.847746][T26042] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2234.862247][T26047] FAULT_INJECTION: forcing a failure. [ 2234.862247][T26047] name failslab, interval 1, probability 0, space 0, times 0 [ 2234.888821][T26047] CPU: 1 PID: 26047 Comm: syz-executor.5 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2234.898973][T26047] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2234.909153][T26047] Call Trace: [ 2234.912459][T26047] [ 2234.915424][T26047] dump_stack_lvl+0x125/0x1b0 [ 2234.920149][T26047] should_fail_ex+0x496/0x5b0 [ 2234.925055][T26047] should_failslab+0x9/0x20 [ 2234.929786][T26047] __kmem_cache_alloc_node+0x6b/0x310 [ 2234.935201][T26047] ? sctp_auth_shkey_create+0x87/0x1e0 [ 2234.940723][T26047] kmalloc_trace+0x25/0xe0 [ 2234.945190][T26047] sctp_auth_shkey_create+0x87/0x1e0 [ 2234.950628][T26047] sctp_auth_asoc_copy_shkeys+0x1f4/0x360 [ 2234.956425][T26047] sctp_association_new+0x196a/0x2a90 [ 2234.961865][T26047] sctp_connect_new_asoc+0x1b7/0x790 [ 2234.967214][T26047] ? sctp_bind+0x110/0x110 [ 2234.971778][T26047] ? mark_held_locks+0x9f/0xe0 [ 2234.976952][T26047] ? bpf_lsm_sctp_bind_connect+0x9/0x10 [ 2234.982713][T26047] sctp_sendmsg+0x15c2/0x1e80 [ 2234.987714][T26047] ? sctp_setsockopt+0xb7e0/0xb7e0 [ 2234.992891][T26047] ? preempt_count_sub+0x150/0x150 [ 2234.998270][T26047] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2235.004243][T26047] ? aa_af_perm+0x250/0x250 [ 2235.008807][T26047] ? import_ubuf+0x1a4/0x200 [ 2235.013566][T26047] inet_sendmsg+0x9d/0xe0 [ 2235.017945][T26047] ? inet_send_prepare+0x530/0x530 [ 2235.023130][T26047] __sock_sendmsg+0xd5/0x180 [ 2235.027777][T26047] ____sys_sendmsg+0x6ac/0x940 [ 2235.032600][T26047] ? copy_msghdr_from_user+0x10b/0x160 [ 2235.038113][T26047] ? kernel_sendmsg+0x50/0x50 22:28:04 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000100aa00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:05 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x5}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:05 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x6}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2235.042853][T26047] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2235.049504][T26047] ? find_held_lock+0x2d/0x110 [ 2235.054422][T26047] ___sys_sendmsg+0x135/0x1d0 [ 2235.059172][T26047] ? do_recvmmsg+0x740/0x740 [ 2235.063819][T26047] ? find_held_lock+0x2d/0x110 [ 2235.068673][T26047] ? __fget_light+0xe6/0x260 [ 2235.073411][T26047] __sys_sendmsg+0x117/0x1e0 [ 2235.078516][T26047] ? __sys_sendmsg_sock+0x30/0x30 [ 2235.083700][T26047] ? syscall_enter_from_user_mode+0x26/0x80 [ 2235.089646][T26047] do_syscall_64+0x3f/0x110 [ 2235.094206][T26047] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2235.100149][T26047] RIP: 0033:0x7efe64a7cae9 [ 2235.104699][T26047] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2235.124619][T26047] RSP: 002b:00007efe657b00c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2235.133256][T26047] RAX: ffffffffffffffda RBX: 00007efe64b9bf80 RCX: 00007efe64a7cae9 [ 2235.141368][T26047] RDX: 000000000000c0fe RSI: 00000000200000c0 RDI: 0000000000000003 [ 2235.149395][T26047] RBP: 00007efe657b0120 R08: 0000000000000000 R09: 0000000000000000 [ 2235.157426][T26047] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 2235.165434][T26047] R13: 000000000000000b R14: 00007efe64b9bf80 R15: 00007fff7ecdbd18 [ 2235.173477][T26047] [ 2235.179782][T26042] CPU: 0 PID: 26042 Comm: syz-executor.0 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2235.190269][T26042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2235.200367][T26042] Call Trace: [ 2235.204371][T26042] [ 2235.207486][T26042] dump_stack_lvl+0x125/0x1b0 [ 2235.212226][T26042] sysfs_warn_dup+0x7f/0xa0 [ 2235.216803][T26042] sysfs_create_dir_ns+0x247/0x2a0 [ 2235.222080][T26042] ? sysfs_create_mount_point+0xb0/0xb0 [ 2235.227730][T26042] ? spin_bug+0x1d0/0x1d0 [ 2235.232125][T26042] ? net_namespace+0x12/0x40 [ 2235.237057][T26042] ? device_namespace+0x8d/0xc0 [ 2235.242068][T26042] kobject_add_internal+0x2c8/0x960 [ 2235.247347][T26042] kobject_add+0x16f/0x240 [ 2235.251844][T26042] ? kset_create_and_add+0x190/0x190 [ 2235.257200][T26042] ? do_raw_spin_unlock+0x173/0x230 [ 2235.262642][T26042] ? kobject_put+0xbe/0x440 [ 2235.267232][T26042] device_add+0x289/0x1aa0 [ 2235.271875][T26042] ? device_initialize+0x510/0x510 [ 2235.277145][T26042] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2235.284061][T26042] ? __init_waitqueue_head+0xca/0x150 [ 2235.289584][T26042] netdev_register_kobject+0x183/0x3f0 [ 2235.295124][T26042] register_netdevice+0xbdf/0x14a0 [ 2235.300298][T26042] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2235.306266][T26042] veth_newlink+0x4ef/0xa00 [ 2235.310829][T26042] ? veth_set_features+0x2d0/0x2d0 [ 2235.315995][T26042] ? rtnl_create_link+0xc9c/0xfd0 [ 2235.321077][T26042] ? __rtnl_newlink+0x108a/0x1930 [ 2235.326149][T26042] ? rtnl_newlink+0x67/0xa0 [ 2235.330762][T26042] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2235.336110][T26042] ? alloc_netdev_mqs+0xee6/0x1290 [ 2235.341291][T26042] ? rtnl_create_link+0xa6d/0xfd0 [ 2235.346650][T26042] ? veth_set_features+0x2d0/0x2d0 [ 2235.351826][T26042] __rtnl_newlink+0x1173/0x1930 [ 2235.356736][T26042] ? rtnl_link_unregister+0x260/0x260 [ 2235.362276][T26042] rtnl_newlink+0x67/0xa0 [ 2235.366677][T26042] ? __rtnl_newlink+0x1930/0x1930 [ 2235.372017][T26042] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2235.377062][T26042] ? rtnl_getlink+0xb40/0xb40 [ 2235.381798][T26042] netlink_rcv_skb+0x16b/0x440 [ 2235.386892][T26042] ? rtnl_getlink+0xb40/0xb40 [ 2235.391660][T26042] ? netlink_ack+0x1370/0x1370 [ 2235.396675][T26042] ? netlink_deliver_tap+0x1a0/0xd00 [ 2235.402035][T26042] netlink_unicast+0x53b/0x810 [ 2235.407141][T26042] ? netlink_attachskb+0x880/0x880 [ 2235.412414][T26042] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2235.418374][T26042] ? __phys_addr_symbol+0x30/0x70 [ 2235.423564][T26042] ? __check_object_size+0x323/0x730 [ 2235.428976][T26042] netlink_sendmsg+0x93c/0xe40 [ 2235.433844][T26042] ? netlink_unicast+0x810/0x810 [ 2235.438842][T26042] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2235.444169][T26042] ? netlink_unicast+0x810/0x810 [ 2235.449175][T26042] __sock_sendmsg+0xd5/0x180 [ 2235.453824][T26042] ____sys_sendmsg+0x6ac/0x940 [ 2235.458730][T26042] ? copy_msghdr_from_user+0x10b/0x160 [ 2235.464332][T26042] ? kernel_sendmsg+0x50/0x50 [ 2235.469084][T26042] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2235.475313][T26042] ___sys_sendmsg+0x135/0x1d0 [ 2235.480064][T26042] ? do_recvmmsg+0x740/0x740 [ 2235.485585][T26042] ? find_held_lock+0x2d/0x110 [ 2235.490458][T26042] ? __fget_light+0xe6/0x260 [ 2235.495119][T26042] __sys_sendmsg+0x117/0x1e0 [ 2235.499795][T26042] ? __sys_sendmsg_sock+0x30/0x30 [ 2235.505140][T26042] ? xfd_validate_state+0x5d/0x180 [ 2235.510348][T26042] ? syscall_enter_from_user_mode+0x26/0x80 [ 2235.516394][T26042] do_syscall_64+0x3f/0x110 [ 2235.520967][T26042] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2235.526921][T26042] RIP: 0033:0x7fedc2e7cae9 [ 2235.531469][T26042] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2235.551128][T26042] RSP: 002b:00007fedc3aef0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2235.559598][T26042] RAX: ffffffffffffffda RBX: 00007fedc2f9bf80 RCX: 00007fedc2e7cae9 [ 2235.567624][T26042] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2235.575808][T26042] RBP: 00007fedc2ec847a R08: 0000000000000000 R09: 0000000000000000 [ 2235.584019][T26042] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2235.592483][T26042] R13: 000000000000000b R14: 00007fedc2f9bf80 R15: 00007ffdb0854d38 22:28:05 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) (fail_nth: 8) [ 2235.600607][T26042] [ 2235.624958][T26042] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:05 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x7}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2235.712629][T26043] __nla_validate_parse: 7 callbacks suppressed [ 2235.712658][T26043] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2235.747455][T26043] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2235.757826][T26043] CPU: 1 PID: 26043 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2235.768051][T26043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2235.778254][T26043] Call Trace: [ 2235.781570][T26043] [ 2235.784535][T26043] dump_stack_lvl+0x125/0x1b0 [ 2235.789260][T26043] sysfs_warn_dup+0x7f/0xa0 [ 2235.793822][T26043] sysfs_create_dir_ns+0x247/0x2a0 [ 2235.798994][T26043] ? sysfs_create_mount_point+0xb0/0xb0 [ 2235.804781][T26043] ? spin_bug+0x1d0/0x1d0 [ 2235.809179][T26043] ? net_namespace+0x12/0x40 [ 2235.813982][T26043] ? device_namespace+0x8d/0xc0 [ 2235.819082][T26043] kobject_add_internal+0x2c8/0x960 [ 2235.824357][T26043] kobject_add+0x16f/0x240 [ 2235.829100][T26043] ? kset_create_and_add+0x190/0x190 [ 2235.834449][T26043] ? do_raw_spin_unlock+0x173/0x230 [ 2235.839718][T26043] ? kobject_put+0xbe/0x440 [ 2235.844281][T26043] device_add+0x289/0x1aa0 [ 2235.848753][T26043] ? device_initialize+0x510/0x510 [ 2235.853911][T26043] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2235.860810][T26043] ? __init_waitqueue_head+0xca/0x150 [ 2235.866417][T26043] netdev_register_kobject+0x183/0x3f0 [ 2235.871929][T26043] register_netdevice+0xbdf/0x14a0 [ 2235.877258][T26043] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2235.883300][T26043] veth_newlink+0x4ef/0xa00 [ 2235.887834][T26043] ? veth_set_features+0x2d0/0x2d0 [ 2235.893058][T26043] ? rtnl_create_link+0xc9c/0xfd0 [ 2235.898109][T26043] ? __rtnl_newlink+0x108a/0x1930 [ 2235.903342][T26043] ? rtnl_newlink+0x67/0xa0 [ 2235.907940][T26043] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2235.913284][T26043] ? alloc_netdev_mqs+0xee6/0x1290 [ 2235.918440][T26043] ? rtnl_create_link+0xa6d/0xfd0 [ 2235.923496][T26043] ? veth_set_features+0x2d0/0x2d0 [ 2235.928640][T26043] __rtnl_newlink+0x1173/0x1930 [ 2235.933622][T26043] ? rtnl_link_unregister+0x260/0x260 [ 2235.939136][T26043] rtnl_newlink+0x67/0xa0 [ 2235.943487][T26043] ? __rtnl_newlink+0x1930/0x1930 [ 2235.948525][T26043] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2235.953577][T26043] ? rtnl_getlink+0xb40/0xb40 [ 2235.958287][T26043] netlink_rcv_skb+0x16b/0x440 [ 2235.964049][T26043] ? rtnl_getlink+0xb40/0xb40 [ 2235.968849][T26043] ? netlink_ack+0x1370/0x1370 [ 2235.974097][T26043] ? netlink_deliver_tap+0x1a0/0xd00 [ 2235.979607][T26043] netlink_unicast+0x53b/0x810 [ 2235.984489][T26043] ? netlink_attachskb+0x880/0x880 [ 2235.989789][T26043] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2235.995791][T26043] ? __phys_addr_symbol+0x30/0x70 [ 2236.001362][T26043] ? __check_object_size+0x323/0x730 [ 2236.006681][T26043] netlink_sendmsg+0x93c/0xe40 [ 2236.012177][T26043] ? netlink_unicast+0x810/0x810 [ 2236.017226][T26043] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2236.022549][T26043] ? netlink_unicast+0x810/0x810 [ 2236.027523][T26043] __sock_sendmsg+0xd5/0x180 [ 2236.032238][T26043] ____sys_sendmsg+0x6ac/0x940 [ 2236.037035][T26043] ? copy_msghdr_from_user+0x10b/0x160 [ 2236.042516][T26043] ? kernel_sendmsg+0x50/0x50 [ 2236.047216][T26043] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2236.053248][T26043] ___sys_sendmsg+0x135/0x1d0 [ 2236.058061][T26043] ? do_recvmmsg+0x740/0x740 [ 2236.062687][T26043] ? find_held_lock+0x2d/0x110 [ 2236.067620][T26043] ? __fget_light+0xe6/0x260 [ 2236.072356][T26043] __sys_sendmsg+0x117/0x1e0 [ 2236.076973][T26043] ? __sys_sendmsg_sock+0x30/0x30 [ 2236.082050][T26043] ? xfd_validate_state+0x5d/0x180 [ 2236.087222][T26043] ? syscall_enter_from_user_mode+0x26/0x80 [ 2236.093150][T26043] do_syscall_64+0x3f/0x110 [ 2236.097689][T26043] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2236.103725][T26043] RIP: 0033:0x7f70d3c7cae9 [ 2236.108162][T26043] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2236.128486][T26043] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2236.136935][T26043] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2236.144925][T26043] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2236.152909][T26043] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2236.160977][T26043] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2236.169055][T26043] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2236.177259][T26043] [ 2236.187159][T26072] FAULT_INJECTION: forcing a failure. [ 2236.187159][T26072] name failslab, interval 1, probability 0, space 0, times 0 [ 2236.205945][T26072] CPU: 0 PID: 26072 Comm: syz-executor.5 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2236.216082][T26072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2236.226353][T26072] Call Trace: [ 2236.229730][T26072] [ 2236.232680][T26072] dump_stack_lvl+0x125/0x1b0 [ 2236.237411][T26072] should_fail_ex+0x496/0x5b0 [ 2236.242214][T26072] should_failslab+0x9/0x20 [ 2236.246756][T26072] __kmem_cache_alloc_node+0x6b/0x310 [ 2236.252229][T26072] ? sctp_add_bind_addr+0x9d/0x3e0 [ 2236.257397][T26072] kmalloc_trace+0x25/0xe0 [ 2236.261855][T26072] sctp_add_bind_addr+0x9d/0x3e0 [ 2236.266823][T26072] sctp_copy_local_addr_list+0x39e/0x5a0 [ 2236.272595][T26072] ? sctp_v4_get_dst+0x12c0/0x12c0 [ 2236.278041][T26072] ? sctp_auth_asoc_copy_shkeys+0x2a7/0x360 [ 2236.283986][T26072] ? sctp_bind_addr_copy+0x328/0x530 [ 2236.289353][T26072] sctp_bind_addr_copy+0x328/0x530 [ 2236.294501][T26072] sctp_connect_new_asoc+0x1d8/0x790 [ 2236.299813][T26072] ? sctp_bind+0x110/0x110 [ 2236.304258][T26072] ? mark_held_locks+0x9f/0xe0 [ 2236.309149][T26072] ? bpf_lsm_sctp_bind_connect+0x9/0x10 [ 2236.314738][T26072] sctp_sendmsg+0x15c2/0x1e80 [ 2236.319451][T26072] ? sctp_setsockopt+0xb7e0/0xb7e0 [ 2236.324610][T26072] ? preempt_count_sub+0x150/0x150 [ 2236.329740][T26072] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2236.335675][T26072] ? aa_af_perm+0x250/0x250 [ 2236.340196][T26072] ? import_ubuf+0x1a4/0x200 [ 2236.344834][T26072] inet_sendmsg+0x9d/0xe0 [ 2236.349272][T26072] ? inet_send_prepare+0x530/0x530 [ 2236.354489][T26072] __sock_sendmsg+0xd5/0x180 [ 2236.359095][T26072] ____sys_sendmsg+0x6ac/0x940 [ 2236.363876][T26072] ? copy_msghdr_from_user+0x10b/0x160 [ 2236.369358][T26072] ? kernel_sendmsg+0x50/0x50 [ 2236.374054][T26072] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2236.380060][T26072] ? find_held_lock+0x2d/0x110 [ 2236.384938][T26072] ___sys_sendmsg+0x135/0x1d0 [ 2236.389724][T26072] ? do_recvmmsg+0x740/0x740 [ 2236.394367][T26072] ? find_held_lock+0x2d/0x110 [ 2236.399291][T26072] ? __fget_light+0xe6/0x260 [ 2236.403949][T26072] __sys_sendmsg+0x117/0x1e0 [ 2236.408577][T26072] ? __sys_sendmsg_sock+0x30/0x30 [ 2236.413641][T26072] ? syscall_enter_from_user_mode+0x26/0x80 [ 2236.419571][T26072] do_syscall_64+0x3f/0x110 [ 2236.424118][T26072] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2236.430041][T26072] RIP: 0033:0x7efe64a7cae9 [ 2236.434468][T26072] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2236.454197][T26072] RSP: 002b:00007efe657b00c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2236.462628][T26072] RAX: ffffffffffffffda RBX: 00007efe64b9bf80 RCX: 00007efe64a7cae9 [ 2236.470711][T26072] RDX: 000000000000c0fe RSI: 00000000200000c0 RDI: 0000000000000003 [ 2236.478710][T26072] RBP: 00007efe657b0120 R08: 0000000000000000 R09: 0000000000000000 [ 2236.486692][T26072] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 2236.494759][T26072] R13: 000000000000000b R14: 00007efe64b9bf80 R15: 00007fff7ecdbd18 [ 2236.502973][T26072] [ 2236.517500][T26043] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2236.580684][T26045] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. [ 2236.620445][T26048] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.2'. 22:28:06 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x0, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) (fail_nth: 1) 22:28:06 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000101aa00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:06 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x8}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:06 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) (fail_nth: 9) [ 2236.630416][T26050] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.0'. [ 2236.641778][T26049] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. 22:28:06 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0xf}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:06 executing program 2: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x2}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2236.770559][T26079] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2236.778115][T26081] FAULT_INJECTION: forcing a failure. [ 2236.778115][T26081] name failslab, interval 1, probability 0, space 0, times 0 [ 2236.801680][T26079] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' 22:28:06 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x9}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:06 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) (fail_nth: 1) [ 2236.833488][T26085] FAULT_INJECTION: forcing a failure. [ 2236.833488][T26085] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 2236.880648][T26081] CPU: 1 PID: 26081 Comm: syz-executor.5 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2236.891235][T26081] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2236.901422][T26081] Call Trace: [ 2236.904742][T26081] [ 2236.907699][T26081] dump_stack_lvl+0x125/0x1b0 [ 2236.912426][T26081] should_fail_ex+0x496/0x5b0 [ 2236.917171][T26081] should_failslab+0x9/0x20 [ 2236.921810][T26081] __kmem_cache_alloc_node+0x6b/0x310 [ 2236.927394][T26081] ? sctp_add_bind_addr+0x9d/0x3e0 [ 2236.932557][T26081] kmalloc_trace+0x25/0xe0 [ 2236.937020][T26081] sctp_add_bind_addr+0x9d/0x3e0 [ 2236.942004][T26081] sctp_copy_local_addr_list+0x39e/0x5a0 [ 2236.947794][T26081] ? sctp_v4_get_dst+0x12c0/0x12c0 [ 2236.953000][T26081] ? sctp_auth_asoc_copy_shkeys+0x2a7/0x360 [ 2236.959027][T26081] ? sctp_bind_addr_copy+0x328/0x530 [ 2236.964446][T26081] sctp_bind_addr_copy+0x328/0x530 [ 2236.969620][T26081] sctp_connect_new_asoc+0x1d8/0x790 [ 2236.974964][T26081] ? sctp_bind+0x110/0x110 [ 2236.979441][T26081] ? mark_held_locks+0x9f/0xe0 [ 2236.984521][T26081] ? bpf_lsm_sctp_bind_connect+0x9/0x10 [ 2236.990315][T26081] sctp_sendmsg+0x15c2/0x1e80 [ 2236.995135][T26081] ? sctp_setsockopt+0xb7e0/0xb7e0 [ 2237.000760][T26081] ? preempt_count_sub+0x150/0x150 [ 2237.005915][T26081] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2237.011853][T26081] ? aa_af_perm+0x250/0x250 [ 2237.016395][T26081] ? import_ubuf+0x1a4/0x200 [ 2237.021044][T26081] inet_sendmsg+0x9d/0xe0 [ 2237.025399][T26081] ? inet_send_prepare+0x530/0x530 [ 2237.030550][T26081] __sock_sendmsg+0xd5/0x180 [ 2237.035184][T26081] ____sys_sendmsg+0x6ac/0x940 [ 2237.040064][T26081] ? copy_msghdr_from_user+0x10b/0x160 [ 2237.045577][T26081] ? kernel_sendmsg+0x50/0x50 [ 2237.050433][T26081] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2237.056462][T26081] ? find_held_lock+0x2d/0x110 [ 2237.061269][T26081] ___sys_sendmsg+0x135/0x1d0 [ 2237.066076][T26081] ? do_recvmmsg+0x740/0x740 [ 2237.070694][T26081] ? find_held_lock+0x2d/0x110 [ 2237.075689][T26081] ? __fget_light+0xe6/0x260 [ 2237.080346][T26081] __sys_sendmsg+0x117/0x1e0 [ 2237.084962][T26081] ? __sys_sendmsg_sock+0x30/0x30 [ 2237.090129][T26081] ? syscall_enter_from_user_mode+0x26/0x80 [ 2237.096065][T26081] do_syscall_64+0x3f/0x110 [ 2237.100633][T26081] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2237.106647][T26081] RIP: 0033:0x7efe64a7cae9 [ 2237.111104][T26081] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2237.130949][T26081] RSP: 002b:00007efe657b00c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2237.139402][T26081] RAX: ffffffffffffffda RBX: 00007efe64b9bf80 RCX: 00007efe64a7cae9 [ 2237.147432][T26081] RDX: 000000000000c0fe RSI: 00000000200000c0 RDI: 0000000000000003 [ 2237.155518][T26081] RBP: 00007efe657b0120 R08: 0000000000000000 R09: 0000000000000000 [ 2237.163531][T26081] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 2237.171643][T26081] R13: 000000000000000b R14: 00007efe64b9bf80 R15: 00007fff7ecdbd18 [ 2237.179656][T26081] [ 2237.194729][T26079] CPU: 0 PID: 26079 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2237.201301][T26093] FAULT_INJECTION: forcing a failure. [ 2237.201301][T26093] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 2237.205104][T26079] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2237.205125][T26079] Call Trace: [ 2237.205135][T26079] [ 2237.205146][T26079] dump_stack_lvl+0x125/0x1b0 [ 2237.205191][T26079] sysfs_warn_dup+0x7f/0xa0 [ 2237.243744][T26079] sysfs_create_dir_ns+0x247/0x2a0 [ 2237.248941][T26079] ? sysfs_create_mount_point+0xb0/0xb0 [ 2237.254549][T26079] ? spin_bug+0x1d0/0x1d0 [ 2237.259591][T26079] ? net_namespace+0x12/0x40 [ 2237.264227][T26079] ? device_namespace+0x8d/0xc0 [ 2237.269320][T26079] kobject_add_internal+0x2c8/0x960 [ 2237.274675][T26079] kobject_add+0x16f/0x240 [ 2237.279141][T26079] ? kset_create_and_add+0x190/0x190 [ 2237.284484][T26079] ? do_raw_spin_unlock+0x173/0x230 [ 2237.289739][T26079] ? kobject_put+0xbe/0x440 [ 2237.294317][T26079] device_add+0x289/0x1aa0 [ 2237.298810][T26079] ? device_initialize+0x510/0x510 [ 2237.304070][T26079] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2237.311073][T26079] ? __init_waitqueue_head+0xca/0x150 [ 2237.316523][T26079] netdev_register_kobject+0x183/0x3f0 [ 2237.322032][T26079] register_netdevice+0xbdf/0x14a0 [ 2237.327197][T26079] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2237.333131][T26079] ? validate_linkmsg+0x6fc/0x9c0 [ 2237.338224][T26079] br_dev_newlink+0x27/0x110 [ 2237.342896][T26079] ? br_changelink+0x1760/0x1760 [ 2237.347892][T26079] __rtnl_newlink+0x1173/0x1930 [ 2237.352884][T26079] ? rtnl_link_unregister+0x260/0x260 [ 2237.358335][T26079] rtnl_newlink+0x67/0xa0 [ 2237.362709][T26079] ? __rtnl_newlink+0x1930/0x1930 [ 2237.367768][T26079] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2237.373010][T26079] ? rtnl_getlink+0xb40/0xb40 [ 2237.377748][T26079] netlink_rcv_skb+0x16b/0x440 [ 2237.382563][T26079] ? rtnl_getlink+0xb40/0xb40 [ 2237.387362][T26079] ? netlink_ack+0x1370/0x1370 [ 2237.392184][T26079] ? netlink_deliver_tap+0x1a0/0xd00 [ 2237.397775][T26079] netlink_unicast+0x53b/0x810 [ 2237.402591][T26079] ? netlink_attachskb+0x880/0x880 [ 2237.407740][T26079] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2237.413859][T26079] ? __phys_addr_symbol+0x30/0x70 [ 2237.418925][T26079] ? __check_object_size+0x323/0x730 [ 2237.424274][T26079] netlink_sendmsg+0x93c/0xe40 [ 2237.429098][T26079] ? netlink_unicast+0x810/0x810 [ 2237.434343][T26079] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2237.439663][T26079] ? netlink_unicast+0x810/0x810 [ 2237.444653][T26079] __sock_sendmsg+0xd5/0x180 [ 2237.449280][T26079] ____sys_sendmsg+0x6ac/0x940 [ 2237.454158][T26079] ? copy_msghdr_from_user+0x10b/0x160 [ 2237.459652][T26079] ? kernel_sendmsg+0x50/0x50 [ 2237.464374][T26079] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2237.470423][T26079] ___sys_sendmsg+0x135/0x1d0 [ 2237.475223][T26079] ? do_recvmmsg+0x740/0x740 [ 2237.479850][T26079] ? find_held_lock+0x2d/0x110 [ 2237.484779][T26079] ? __fget_light+0xe6/0x260 [ 2237.489592][T26079] __sys_sendmsg+0x117/0x1e0 [ 2237.494234][T26079] ? __sys_sendmsg_sock+0x30/0x30 [ 2237.499296][T26079] ? xfd_validate_state+0x5d/0x180 [ 2237.504480][T26079] ? syscall_enter_from_user_mode+0x26/0x80 [ 2237.510417][T26079] do_syscall_64+0x3f/0x110 [ 2237.514979][T26079] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2237.520919][T26079] RIP: 0033:0x7f874a47cae9 [ 2237.525378][T26079] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2237.545128][T26079] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2237.557503][T26079] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2237.565526][T26079] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2237.573799][T26079] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2237.581807][T26079] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2237.589917][T26079] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2237.598056][T26079] [ 2237.603265][T26093] CPU: 1 PID: 26093 Comm: syz-executor.2 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2237.613559][T26093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2237.623717][T26093] Call Trace: [ 2237.627002][T26093] [ 2237.630048][T26093] dump_stack_lvl+0x125/0x1b0 [ 2237.634842][T26093] should_fail_ex+0x496/0x5b0 [ 2237.639558][T26093] _copy_from_user+0x30/0xf0 [ 2237.644173][T26093] copy_msghdr_from_user+0x99/0x160 [ 2237.649389][T26093] ? __copy_msghdr+0x460/0x460 [ 2237.654184][T26093] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2237.660193][T26093] ? find_held_lock+0x2d/0x110 [ 2237.665039][T26093] ___sys_sendmsg+0xff/0x1d0 [ 2237.672195][T26093] ? do_recvmmsg+0x740/0x740 [ 2237.676983][T26093] ? find_held_lock+0x2d/0x110 [ 2237.681810][T26093] ? __fget_light+0xe6/0x260 [ 2237.686606][T26093] __sys_sendmsg+0x117/0x1e0 [ 2237.691268][T26093] ? __sys_sendmsg_sock+0x30/0x30 [ 2237.696434][T26093] ? syscall_enter_from_user_mode+0x26/0x80 [ 2237.702468][T26093] do_syscall_64+0x3f/0x110 [ 2237.707042][T26093] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2237.712952][T26093] RIP: 0033:0x7f0d48a7cae9 [ 2237.717379][T26093] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2237.737277][T26093] RSP: 002b:00007f0d498570c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2237.746059][T26093] RAX: ffffffffffffffda RBX: 00007f0d48b9bf80 RCX: 00007f0d48a7cae9 [ 2237.754041][T26093] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2237.762045][T26093] RBP: 00007f0d49857120 R08: 0000000000000000 R09: 0000000000000000 [ 2237.770039][T26093] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 2237.778029][T26093] R13: 000000000000000b R14: 00007f0d48b9bf80 R15: 00007fffa7f00e48 [ 2237.786115][T26093] [ 2237.808612][T26079] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2237.826721][T26085] CPU: 1 PID: 26085 Comm: syz-executor.0 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2237.836884][T26085] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2237.846954][T26085] Call Trace: [ 2237.850251][T26085] [ 2237.853360][T26085] dump_stack_lvl+0x125/0x1b0 [ 2237.858066][T26085] should_fail_ex+0x496/0x5b0 [ 2237.862870][T26085] _copy_from_user+0x30/0xf0 [ 2237.867567][T26085] copy_msghdr_from_user+0x99/0x160 [ 2237.872878][T26085] ? __copy_msghdr+0x460/0x460 [ 2237.877677][T26085] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2237.883803][T26085] ___sys_sendmsg+0xff/0x1d0 [ 2237.888446][T26085] ? do_recvmmsg+0x740/0x740 [ 2237.893164][T26085] ? find_held_lock+0x2d/0x110 [ 2237.897976][T26085] ? get_pid_task+0x101/0x240 [ 2237.902873][T26085] ? __fget_light+0xe6/0x260 [ 2237.907489][T26085] __sys_sendmmsg+0x1a1/0x450 [ 2237.912187][T26085] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 2237.917233][T26085] ? vfs_write+0x14c/0xdf0 [ 2237.921679][T26085] ? bit_wait_io_timeout+0x160/0x160 [ 2237.926990][T26085] ? fput+0x30/0x1a0 [ 2237.930995][T26085] ? ksys_write+0x1a7/0x250 [ 2237.935533][T26085] ? __ia32_sys_read+0xb0/0xb0 [ 2237.940328][T26085] __x64_sys_sendmmsg+0x9c/0x100 [ 2237.945280][T26085] ? syscall_enter_from_user_mode+0x26/0x80 [ 2237.951212][T26085] do_syscall_64+0x3f/0x110 [ 2237.956100][T26085] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2237.962101][T26085] RIP: 0033:0x7fedc2e7cae9 [ 2237.966530][T26085] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2237.986334][T26085] RSP: 002b:00007fedc3aef0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 2237.994776][T26085] RAX: ffffffffffffffda RBX: 00007fedc2f9bf80 RCX: 00007fedc2e7cae9 [ 2238.002769][T26085] RDX: 0000000000000002 RSI: 0000000020001ec0 RDI: 0000000000000003 [ 2238.010761][T26085] RBP: 00007fedc3aef120 R08: 0000000000000000 R09: 0000000000000000 [ 2238.018850][T26085] R10: 000000000002c8c0 R11: 0000000000000246 R12: 0000000000000001 [ 2238.026827][T26085] R13: 000000000000000b R14: 00007fedc2f9bf80 R15: 00007ffdb0854d38 [ 2238.036245][T26085] 22:28:08 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0xa}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:08 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) (fail_nth: 10) 22:28:08 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) (fail_nth: 2) [ 2238.116733][T26100] FAULT_INJECTION: forcing a failure. [ 2238.116733][T26100] name failslab, interval 1, probability 0, space 0, times 0 [ 2238.167873][T26100] CPU: 0 PID: 26100 Comm: syz-executor.5 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2238.178016][T26100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2238.189802][T26100] Call Trace: [ 2238.193100][T26100] [ 2238.196059][T26100] dump_stack_lvl+0x125/0x1b0 [ 2238.200957][T26100] should_fail_ex+0x496/0x5b0 [ 2238.205761][T26100] should_failslab+0x9/0x20 [ 2238.210285][T26100] __kmem_cache_alloc_node+0x6b/0x310 [ 2238.215678][T26100] ? sctp_add_bind_addr+0x9d/0x3e0 [ 2238.220813][T26100] kmalloc_trace+0x25/0xe0 [ 2238.225342][T26100] sctp_add_bind_addr+0x9d/0x3e0 [ 2238.230301][T26100] sctp_copy_local_addr_list+0x39e/0x5a0 [ 2238.236058][T26100] ? sctp_v4_get_dst+0x12c0/0x12c0 [ 2238.241291][T26100] ? sctp_auth_asoc_copy_shkeys+0x2a7/0x360 [ 2238.247242][T26100] ? sctp_bind_addr_copy+0x328/0x530 [ 2238.252718][T26100] sctp_bind_addr_copy+0x328/0x530 [ 2238.257971][T26100] sctp_connect_new_asoc+0x1d8/0x790 [ 2238.263393][T26100] ? sctp_bind+0x110/0x110 [ 2238.267850][T26100] ? mark_held_locks+0x9f/0xe0 [ 2238.272641][T26100] ? bpf_lsm_sctp_bind_connect+0x9/0x10 [ 2238.278223][T26100] sctp_sendmsg+0x15c2/0x1e80 [ 2238.282945][T26100] ? sctp_setsockopt+0xb7e0/0xb7e0 [ 2238.288097][T26100] ? preempt_count_sub+0x150/0x150 [ 2238.293421][T26100] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2238.299513][T26100] ? aa_af_perm+0x250/0x250 [ 2238.304055][T26100] ? import_ubuf+0x1a4/0x200 [ 2238.308872][T26100] inet_sendmsg+0x9d/0xe0 [ 2238.313405][T26100] ? inet_send_prepare+0x530/0x530 [ 2238.318539][T26100] __sock_sendmsg+0xd5/0x180 [ 2238.323150][T26100] ____sys_sendmsg+0x6ac/0x940 [ 2238.327929][T26100] ? copy_msghdr_from_user+0x10b/0x160 [ 2238.333420][T26100] ? kernel_sendmsg+0x50/0x50 [ 2238.338251][T26100] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2238.344260][T26100] ? find_held_lock+0x2d/0x110 [ 2238.349053][T26100] ___sys_sendmsg+0x135/0x1d0 [ 2238.353884][T26100] ? do_recvmmsg+0x740/0x740 [ 2238.358499][T26100] ? find_held_lock+0x2d/0x110 [ 2238.363318][T26100] ? __fget_light+0xe6/0x260 [ 2238.367945][T26100] __sys_sendmsg+0x117/0x1e0 [ 2238.372553][T26100] ? __sys_sendmsg_sock+0x30/0x30 [ 2238.377610][T26100] ? syscall_enter_from_user_mode+0x26/0x80 [ 2238.383541][T26100] do_syscall_64+0x3f/0x110 [ 2238.388079][T26100] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2238.394042][T26100] RIP: 0033:0x7efe64a7cae9 [ 2238.398485][T26100] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2238.418728][T26100] RSP: 002b:00007efe657b00c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2238.427177][T26100] RAX: ffffffffffffffda RBX: 00007efe64b9bf80 RCX: 00007efe64a7cae9 [ 2238.435169][T26100] RDX: 000000000000c0fe RSI: 00000000200000c0 RDI: 0000000000000003 [ 2238.443159][T26100] RBP: 00007efe657b0120 R08: 0000000000000000 R09: 0000000000000000 [ 2238.451226][T26100] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 2238.459206][T26100] R13: 000000000000000b R14: 00007efe64b9bf80 R15: 00007fff7ecdbd18 [ 2238.467212][T26100] 22:28:08 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0xe}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:08 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x0, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2238.607560][T26107] FAULT_INJECTION: forcing a failure. [ 2238.607560][T26107] name failslab, interval 1, probability 0, space 0, times 0 [ 2238.635646][T26107] CPU: 1 PID: 26107 Comm: syz-executor.2 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2238.645783][T26107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2238.655977][T26107] Call Trace: [ 2238.659289][T26107] [ 2238.662330][T26107] dump_stack_lvl+0x125/0x1b0 [ 2238.667154][T26107] should_fail_ex+0x496/0x5b0 [ 2238.676497][T26107] should_failslab+0x9/0x20 [ 2238.681044][T26107] kmem_cache_alloc_node+0x71/0x3c0 [ 2238.686284][T26107] ? __alloc_skb+0x287/0x330 [ 2238.690944][T26107] __alloc_skb+0x287/0x330 [ 2238.695428][T26107] ? __napi_build_skb+0x50/0x50 [ 2238.700325][T26107] ? __netlink_dump_start+0x8d0/0x9c0 [ 2238.705744][T26107] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2238.711679][T26107] ? apparmor_socket_getpeersec_dgram+0x9/0x10 [ 2238.718319][T26107] netlink_sendmsg+0x9c6/0xe40 [ 2238.723153][T26107] ? netlink_unicast+0x810/0x810 [ 2238.728142][T26107] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2238.733464][T26107] ? netlink_unicast+0x810/0x810 [ 2238.738453][T26107] __sock_sendmsg+0xd5/0x180 [ 2238.743165][T26107] ____sys_sendmsg+0x6ac/0x940 [ 2238.747962][T26107] ? copy_msghdr_from_user+0x10b/0x160 [ 2238.753469][T26107] ? kernel_sendmsg+0x50/0x50 [ 2238.758188][T26107] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2238.764220][T26107] ? find_held_lock+0x2d/0x110 [ 2238.769125][T26107] ___sys_sendmsg+0x135/0x1d0 [ 2238.773848][T26107] ? do_recvmmsg+0x740/0x740 [ 2238.778636][T26107] ? find_held_lock+0x2d/0x110 [ 2238.783648][T26107] ? __fget_light+0xe6/0x260 [ 2238.788291][T26107] __sys_sendmsg+0x117/0x1e0 [ 2238.793099][T26107] ? __sys_sendmsg_sock+0x30/0x30 [ 2238.798197][T26107] ? syscall_enter_from_user_mode+0x26/0x80 [ 2238.804165][T26107] do_syscall_64+0x3f/0x110 [ 2238.808735][T26107] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2238.814834][T26107] RIP: 0033:0x7f0d48a7cae9 [ 2238.819277][T26107] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2238.839097][T26107] RSP: 002b:00007f0d498570c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2238.847641][T26107] RAX: ffffffffffffffda RBX: 00007f0d48b9bf80 RCX: 00007f0d48a7cae9 [ 2238.855651][T26107] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2238.863837][T26107] RBP: 00007f0d49857120 R08: 0000000000000000 R09: 0000000000000000 [ 2238.871841][T26107] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 2238.879851][T26107] R13: 000000000000000b R14: 00007f0d48b9bf80 R15: 00007fffa7f00e48 [ 2238.887885][T26107] [ 2238.912568][T26088] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2238.935424][T26088] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2238.944880][T26088] CPU: 1 PID: 26088 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2238.954991][T26088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2238.965176][T26088] Call Trace: [ 2238.968541][T26088] [ 2238.971621][T26088] dump_stack_lvl+0x125/0x1b0 [ 2238.976373][T26088] sysfs_warn_dup+0x7f/0xa0 [ 2238.981041][T26088] sysfs_create_dir_ns+0x247/0x2a0 [ 2238.986392][T26088] ? sysfs_create_mount_point+0xb0/0xb0 [ 2238.992008][T26088] ? spin_bug+0x1d0/0x1d0 [ 2238.996401][T26088] ? net_namespace+0x12/0x40 [ 2239.001036][T26088] ? device_namespace+0x8d/0xc0 [ 2239.005963][T26088] kobject_add_internal+0x2c8/0x960 [ 2239.011254][T26088] kobject_add+0x16f/0x240 [ 2239.015823][T26088] ? kset_create_and_add+0x190/0x190 [ 2239.021161][T26088] ? do_raw_spin_unlock+0x173/0x230 [ 2239.026425][T26088] ? kobject_put+0xbe/0x440 [ 2239.031004][T26088] device_add+0x289/0x1aa0 [ 2239.035513][T26088] ? device_initialize+0x510/0x510 [ 2239.040689][T26088] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2239.048204][T26088] ? __init_waitqueue_head+0xca/0x150 [ 2239.053641][T26088] netdev_register_kobject+0x183/0x3f0 [ 2239.059181][T26088] register_netdevice+0xbdf/0x14a0 [ 2239.064320][T26088] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2239.070328][T26088] veth_newlink+0x4ef/0xa00 [ 2239.074865][T26088] ? veth_set_features+0x2d0/0x2d0 [ 2239.080004][T26088] ? rtnl_create_link+0xc9c/0xfd0 [ 2239.085074][T26088] ? __rtnl_newlink+0x108a/0x1930 [ 2239.090113][T26088] ? rtnl_newlink+0x67/0xa0 [ 2239.094690][T26088] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2239.099939][T26088] ? alloc_netdev_mqs+0xee6/0x1290 [ 2239.105105][T26088] ? rtnl_create_link+0xa6d/0xfd0 [ 2239.110184][T26088] ? veth_set_features+0x2d0/0x2d0 [ 2239.115331][T26088] __rtnl_newlink+0x1173/0x1930 [ 2239.120245][T26088] ? rtnl_link_unregister+0x260/0x260 [ 2239.125687][T26088] rtnl_newlink+0x67/0xa0 [ 2239.130127][T26088] ? __rtnl_newlink+0x1930/0x1930 [ 2239.135190][T26088] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2239.140163][T26088] ? rtnl_getlink+0xb40/0xb40 [ 2239.144874][T26088] netlink_rcv_skb+0x16b/0x440 [ 2239.149665][T26088] ? rtnl_getlink+0xb40/0xb40 [ 2239.154452][T26088] ? netlink_ack+0x1370/0x1370 [ 2239.159268][T26088] ? netlink_deliver_tap+0x1a0/0xd00 [ 2239.164583][T26088] netlink_unicast+0x53b/0x810 [ 2239.169369][T26088] ? netlink_attachskb+0x880/0x880 [ 2239.174582][T26088] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2239.180491][T26088] ? __phys_addr_symbol+0x30/0x70 [ 2239.185533][T26088] ? __check_object_size+0x323/0x730 [ 2239.190859][T26088] netlink_sendmsg+0x93c/0xe40 [ 2239.195837][T26088] ? netlink_unicast+0x810/0x810 [ 2239.200796][T26088] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2239.206271][T26088] ? netlink_unicast+0x810/0x810 [ 2239.211360][T26088] __sock_sendmsg+0xd5/0x180 [ 2239.216066][T26088] ____sys_sendmsg+0x6ac/0x940 [ 2239.221285][T26088] ? copy_msghdr_from_user+0x10b/0x160 [ 2239.226851][T26088] ? kernel_sendmsg+0x50/0x50 [ 2239.231550][T26088] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2239.237559][T26088] ___sys_sendmsg+0x135/0x1d0 [ 2239.242496][T26088] ? do_recvmmsg+0x740/0x740 [ 2239.247129][T26088] ? find_held_lock+0x2d/0x110 [ 2239.251968][T26088] ? __fget_light+0xe6/0x260 [ 2239.256699][T26088] __sys_sendmsg+0x117/0x1e0 [ 2239.262469][T26088] ? __sys_sendmsg_sock+0x30/0x30 [ 2239.267536][T26088] ? xfd_validate_state+0x5d/0x180 [ 2239.272867][T26088] ? syscall_enter_from_user_mode+0x26/0x80 [ 2239.278783][T26088] do_syscall_64+0x3f/0x110 [ 2239.283415][T26088] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2239.289326][T26088] RIP: 0033:0x7f70d3c7cae9 [ 2239.293766][T26088] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2239.313399][T26088] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2239.321918][T26088] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2239.330615][T26088] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2239.338597][T26088] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2239.346576][T26088] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2239.354576][T26088] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2239.362616][T26088] [ 2239.377397][T26088] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:09 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000102aa00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:09 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) (fail_nth: 11) 22:28:09 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0xf}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2239.432448][T26096] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2239.442305][T26092] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:28:09 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x10}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:09 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x0, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:09 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) (fail_nth: 3) [ 2239.504622][T26113] FAULT_INJECTION: forcing a failure. [ 2239.504622][T26113] name failslab, interval 1, probability 0, space 0, times 0 [ 2239.542305][T26113] CPU: 1 PID: 26113 Comm: syz-executor.5 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 22:28:09 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x2}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2239.552448][T26113] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2239.562549][T26113] Call Trace: [ 2239.565862][T26113] [ 2239.568821][T26113] dump_stack_lvl+0x125/0x1b0 [ 2239.573551][T26113] should_fail_ex+0x496/0x5b0 [ 2239.578308][T26113] should_failslab+0x9/0x20 [ 2239.582853][T26113] __kmem_cache_alloc_node+0x6b/0x310 [ 2239.588448][T26113] ? sctp_add_bind_addr+0x9d/0x3e0 [ 2239.593620][T26113] kmalloc_trace+0x25/0xe0 [ 2239.598089][T26113] sctp_add_bind_addr+0x9d/0x3e0 22:28:09 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x2, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2239.603081][T26113] sctp_copy_local_addr_list+0x39e/0x5a0 [ 2239.608859][T26113] ? sctp_v4_get_dst+0x12c0/0x12c0 [ 2239.614026][T26113] ? sctp_auth_asoc_copy_shkeys+0x2a7/0x360 [ 2239.620025][T26113] ? sctp_bind_addr_copy+0x328/0x530 [ 2239.625363][T26113] sctp_bind_addr_copy+0x328/0x530 [ 2239.630534][T26113] sctp_connect_new_asoc+0x1d8/0x790 [ 2239.635877][T26113] ? sctp_bind+0x110/0x110 [ 2239.640359][T26113] ? mark_held_locks+0x9f/0xe0 [ 2239.645269][T26113] ? bpf_lsm_sctp_bind_connect+0x9/0x10 [ 2239.650883][T26113] sctp_sendmsg+0x15c2/0x1e80 [ 2239.655621][T26113] ? sctp_setsockopt+0xb7e0/0xb7e0 [ 2239.660765][T26113] ? preempt_count_sub+0x150/0x150 [ 2239.666001][T26113] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2239.672127][T26113] ? aa_af_perm+0x250/0x250 [ 2239.676661][T26113] ? import_ubuf+0x1a4/0x200 [ 2239.681302][T26113] inet_sendmsg+0x9d/0xe0 [ 2239.685665][T26113] ? inet_send_prepare+0x530/0x530 [ 2239.690804][T26113] __sock_sendmsg+0xd5/0x180 [ 2239.695417][T26113] ____sys_sendmsg+0x6ac/0x940 [ 2239.700440][T26113] ? copy_msghdr_from_user+0x10b/0x160 [ 2239.705936][T26113] ? kernel_sendmsg+0x50/0x50 [ 2239.710643][T26113] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2239.716842][T26113] ? find_held_lock+0x2d/0x110 [ 2239.721665][T26113] ___sys_sendmsg+0x135/0x1d0 [ 2239.726393][T26113] ? do_recvmmsg+0x740/0x740 [ 2239.731023][T26113] ? find_held_lock+0x2d/0x110 [ 2239.735844][T26113] ? __fget_light+0xe6/0x260 [ 2239.740463][T26113] __sys_sendmsg+0x117/0x1e0 [ 2239.745079][T26113] ? __sys_sendmsg_sock+0x30/0x30 [ 2239.750148][T26113] ? syscall_enter_from_user_mode+0x26/0x80 [ 2239.756258][T26113] do_syscall_64+0x3f/0x110 [ 2239.760788][T26113] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2239.766784][T26113] RIP: 0033:0x7efe64a7cae9 [ 2239.771209][T26113] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2239.791790][T26113] RSP: 002b:00007efe657b00c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2239.800311][T26113] RAX: ffffffffffffffda RBX: 00007efe64b9bf80 RCX: 00007efe64a7cae9 [ 2239.808311][T26113] RDX: 000000000000c0fe RSI: 00000000200000c0 RDI: 0000000000000003 [ 2239.816316][T26113] RBP: 00007efe657b0120 R08: 0000000000000000 R09: 0000000000000000 [ 2239.824387][T26113] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 2239.832374][T26113] R13: 000000000000000b R14: 00007efe64b9bf80 R15: 00007fff7ecdbd18 [ 2239.840402][T26113] [ 2239.966145][T26129] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2240.026031][T26129] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' 22:28:10 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) (fail_nth: 12) 22:28:10 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x3}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2240.073351][T26129] CPU: 1 PID: 26129 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2240.084194][T26129] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2240.094741][T26129] Call Trace: [ 2240.098057][T26129] [ 2240.101021][T26129] dump_stack_lvl+0x125/0x1b0 [ 2240.105762][T26129] sysfs_warn_dup+0x7f/0xa0 [ 2240.110329][T26129] sysfs_create_dir_ns+0x247/0x2a0 [ 2240.115506][T26129] ? sysfs_create_mount_point+0xb0/0xb0 22:28:10 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000103aa00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) [ 2240.121114][T26129] ? spin_bug+0x1d0/0x1d0 [ 2240.125592][T26129] ? net_namespace+0x12/0x40 [ 2240.130226][T26129] ? device_namespace+0x8d/0xc0 [ 2240.135139][T26129] kobject_add_internal+0x2c8/0x960 [ 2240.140409][T26129] kobject_add+0x16f/0x240 [ 2240.144921][T26129] ? kset_create_and_add+0x190/0x190 [ 2240.150287][T26129] ? kobject_put+0xbe/0x440 [ 2240.154866][T26129] device_add+0x289/0x1aa0 [ 2240.159435][T26129] ? device_initialize+0x510/0x510 [ 2240.164606][T26129] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2240.171776][T26129] ? __init_waitqueue_head+0xca/0x150 [ 2240.173605][T26137] FAULT_INJECTION: forcing a failure. [ 2240.173605][T26137] name failslab, interval 1, probability 0, space 0, times 0 [ 2240.177184][T26129] netdev_register_kobject+0x183/0x3f0 [ 2240.177235][T26129] register_netdevice+0xbdf/0x14a0 [ 2240.200683][T26129] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2240.206619][T26129] veth_newlink+0x4ef/0xa00 [ 2240.211149][T26129] ? veth_set_features+0x2d0/0x2d0 [ 2240.216282][T26129] ? rtnl_create_link+0xc9c/0xfd0 [ 2240.221335][T26129] ? __rtnl_newlink+0x108a/0x1930 [ 2240.226381][T26129] ? rtnl_newlink+0x67/0xa0 [ 2240.230963][T26129] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2240.236209][T26129] ? alloc_netdev_mqs+0xee6/0x1290 [ 2240.241357][T26129] ? rtnl_create_link+0xa6d/0xfd0 [ 2240.246451][T26129] ? veth_set_features+0x2d0/0x2d0 [ 2240.251582][T26129] __rtnl_newlink+0x1173/0x1930 [ 2240.256467][T26129] ? rtnl_link_unregister+0x260/0x260 [ 2240.261887][T26129] rtnl_newlink+0x67/0xa0 [ 2240.266233][T26129] ? __rtnl_newlink+0x1930/0x1930 [ 2240.271359][T26129] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2240.276321][T26129] ? rtnl_getlink+0xb40/0xb40 [ 2240.281126][T26129] netlink_rcv_skb+0x16b/0x440 [ 2240.286012][T26129] ? rtnl_getlink+0xb40/0xb40 [ 2240.290709][T26129] ? netlink_ack+0x1370/0x1370 [ 2240.295599][T26129] ? netlink_deliver_tap+0x1a0/0xd00 [ 2240.300911][T26129] netlink_unicast+0x53b/0x810 [ 2240.305716][T26129] ? netlink_attachskb+0x880/0x880 [ 2240.310845][T26129] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2240.316759][T26129] ? __phys_addr_symbol+0x30/0x70 [ 2240.321804][T26129] ? __check_object_size+0x323/0x730 [ 2240.327123][T26129] netlink_sendmsg+0x93c/0xe40 [ 2240.331925][T26129] ? netlink_unicast+0x810/0x810 [ 2240.337249][T26129] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2240.342562][T26129] ? netlink_unicast+0x810/0x810 [ 2240.347522][T26129] __sock_sendmsg+0xd5/0x180 [ 2240.352131][T26129] ____sys_sendmsg+0x6ac/0x940 [ 2240.356914][T26129] ? copy_msghdr_from_user+0x10b/0x160 [ 2240.362394][T26129] ? kernel_sendmsg+0x50/0x50 [ 2240.367098][T26129] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2240.373113][T26129] ___sys_sendmsg+0x135/0x1d0 [ 2240.377814][T26129] ? do_recvmmsg+0x740/0x740 [ 2240.382433][T26129] ? find_held_lock+0x2d/0x110 [ 2240.392553][T26129] ? __fget_light+0xe6/0x260 [ 2240.397176][T26129] __sys_sendmsg+0x117/0x1e0 [ 2240.401787][T26129] ? __sys_sendmsg_sock+0x30/0x30 [ 2240.406827][T26129] ? xfd_validate_state+0x5d/0x180 [ 2240.412259][T26129] ? syscall_enter_from_user_mode+0x26/0x80 [ 2240.418173][T26129] do_syscall_64+0x3f/0x110 [ 2240.422700][T26129] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2240.428614][T26129] RIP: 0033:0x7f70d3c7cae9 [ 2240.433044][T26129] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2240.452682][T26129] RSP: 002b:00007f70d48ed0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2240.461111][T26129] RAX: ffffffffffffffda RBX: 00007f70d3d9c050 RCX: 00007f70d3c7cae9 22:28:10 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x3, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:10 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) (fail_nth: 4) [ 2240.469180][T26129] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004 [ 2240.477169][T26129] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2240.485171][T26129] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2240.493153][T26129] R13: 000000000000006e R14: 00007f70d3d9c050 R15: 00007ffd93047b68 [ 2240.501159][T26129] [ 2240.537983][T26129] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2240.563453][T26142] FAULT_INJECTION: forcing a failure. [ 2240.563453][T26142] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 2240.590887][T26142] CPU: 0 PID: 26142 Comm: syz-executor.2 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2240.601304][T26142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2240.611570][T26142] Call Trace: [ 2240.614879][T26142] [ 2240.617829][T26142] dump_stack_lvl+0x125/0x1b0 [ 2240.622567][T26142] should_fail_ex+0x496/0x5b0 [ 2240.627309][T26142] _copy_from_iter+0x246/0x10f0 [ 2240.632223][T26142] ? __build_skb_around+0x278/0x3b0 [ 2240.637479][T26142] ? page_copy_sane+0x2c0/0x2c0 [ 2240.642393][T26142] ? __napi_build_skb+0x50/0x50 [ 2240.647287][T26142] ? __netlink_dump_start+0x8d0/0x9c0 [ 2240.652700][T26142] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2240.658640][T26142] ? __virt_addr_valid+0x5e/0x2d0 [ 2240.663804][T26142] ? __phys_addr_symbol+0x30/0x70 [ 2240.668882][T26142] ? __check_object_size+0x323/0x730 [ 2240.674325][T26142] netlink_sendmsg+0x897/0xe40 [ 2240.679140][T26142] ? netlink_unicast+0x810/0x810 [ 2240.684153][T26142] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2240.689493][T26142] ? netlink_unicast+0x810/0x810 [ 2240.694463][T26142] __sock_sendmsg+0xd5/0x180 [ 2240.699077][T26142] ____sys_sendmsg+0x6ac/0x940 [ 2240.703873][T26142] ? copy_msghdr_from_user+0x10b/0x160 [ 2240.709360][T26142] ? kernel_sendmsg+0x50/0x50 [ 2240.714064][T26142] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2240.720071][T26142] ? find_held_lock+0x2d/0x110 [ 2240.724862][T26142] ___sys_sendmsg+0x135/0x1d0 [ 2240.729649][T26142] ? do_recvmmsg+0x740/0x740 [ 2240.734261][T26142] ? find_held_lock+0x2d/0x110 [ 2240.739073][T26142] ? __fget_light+0xe6/0x260 [ 2240.743693][T26142] __sys_sendmsg+0x117/0x1e0 [ 2240.748395][T26142] ? __sys_sendmsg_sock+0x30/0x30 [ 2240.753455][T26142] ? syscall_enter_from_user_mode+0x26/0x80 [ 2240.759457][T26142] do_syscall_64+0x3f/0x110 [ 2240.764012][T26142] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2240.769938][T26142] RIP: 0033:0x7f0d48a7cae9 [ 2240.774460][T26142] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2240.794096][T26142] RSP: 002b:00007f0d498570c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2240.802698][T26142] RAX: ffffffffffffffda RBX: 00007f0d48b9bf80 RCX: 00007f0d48a7cae9 [ 2240.810681][T26142] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2240.818812][T26142] RBP: 00007f0d49857120 R08: 0000000000000000 R09: 0000000000000000 [ 2240.826811][T26142] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 2240.834800][T26142] R13: 000000000000000b R14: 00007f0d48b9bf80 R15: 00007fffa7f00e48 [ 2240.842812][T26142] [ 2240.866041][T26137] CPU: 1 PID: 26137 Comm: syz-executor.5 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2240.876385][T26137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2240.886574][T26137] Call Trace: [ 2240.889979][T26137] [ 2240.893034][T26137] dump_stack_lvl+0x125/0x1b0 [ 2240.897767][T26137] should_fail_ex+0x496/0x5b0 [ 2240.902521][T26137] should_failslab+0x9/0x20 [ 2240.907071][T26137] __kmem_cache_alloc_node+0x6b/0x310 22:28:10 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x4}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:10 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x4, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2240.912496][T26137] ? sctp_add_bind_addr+0x9d/0x3e0 [ 2240.917671][T26137] kmalloc_trace+0x25/0xe0 [ 2240.922134][T26137] sctp_add_bind_addr+0x9d/0x3e0 [ 2240.927132][T26137] sctp_copy_local_addr_list+0x39e/0x5a0 [ 2240.932976][T26137] ? sctp_v4_get_dst+0x12c0/0x12c0 [ 2240.938215][T26137] ? sctp_auth_asoc_copy_shkeys+0x2a7/0x360 [ 2240.944185][T26137] ? sctp_bind_addr_copy+0x328/0x530 [ 2240.949514][T26137] sctp_bind_addr_copy+0x328/0x530 [ 2240.954683][T26137] sctp_connect_new_asoc+0x1d8/0x790 [ 2240.960112][T26137] ? sctp_bind+0x110/0x110 [ 2240.964568][T26137] ? mark_held_locks+0x9f/0xe0 [ 2240.969471][T26137] ? bpf_lsm_sctp_bind_connect+0x9/0x10 [ 2240.975085][T26137] sctp_sendmsg+0x15c2/0x1e80 [ 2240.980080][T26137] ? sctp_setsockopt+0xb7e0/0xb7e0 [ 2240.985411][T26137] ? preempt_count_sub+0x150/0x150 [ 2240.990650][T26137] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2240.997316][T26137] ? aa_af_perm+0x250/0x250 [ 2241.001874][T26137] ? import_ubuf+0x1a4/0x200 [ 2241.006525][T26137] inet_sendmsg+0x9d/0xe0 [ 2241.010890][T26137] ? inet_send_prepare+0x530/0x530 [ 2241.016041][T26137] __sock_sendmsg+0xd5/0x180 [ 2241.020665][T26137] ____sys_sendmsg+0x6ac/0x940 [ 2241.025478][T26137] ? copy_msghdr_from_user+0x10b/0x160 [ 2241.030977][T26137] ? kernel_sendmsg+0x50/0x50 [ 2241.035700][T26137] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2241.041735][T26137] ? find_held_lock+0x2d/0x110 [ 2241.046551][T26137] ___sys_sendmsg+0x135/0x1d0 [ 2241.051350][T26137] ? do_recvmmsg+0x740/0x740 [ 2241.056093][T26137] ? find_held_lock+0x2d/0x110 [ 2241.060948][T26137] ? __fget_light+0xe6/0x260 [ 2241.065681][T26137] __sys_sendmsg+0x117/0x1e0 [ 2241.070322][T26137] ? __sys_sendmsg_sock+0x30/0x30 [ 2241.075411][T26137] ? syscall_enter_from_user_mode+0x26/0x80 [ 2241.081445][T26137] do_syscall_64+0x3f/0x110 [ 2241.086000][T26137] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2241.091934][T26137] RIP: 0033:0x7efe64a7cae9 [ 2241.096469][T26137] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2241.116119][T26137] RSP: 002b:00007efe657b00c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2241.124581][T26137] RAX: ffffffffffffffda RBX: 00007efe64b9bf80 RCX: 00007efe64a7cae9 [ 2241.132593][T26137] RDX: 000000000000c0fe RSI: 00000000200000c0 RDI: 0000000000000003 [ 2241.140599][T26137] RBP: 00007efe657b0120 R08: 0000000000000000 R09: 0000000000000000 [ 2241.148605][T26137] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 2241.156697][T26137] R13: 000000000000000b R14: 00007efe64b9bf80 R15: 00007fff7ecdbd18 [ 2241.165080][T26137] [ 2241.324401][T26126] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2241.335516][T26147] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:28:11 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) (fail_nth: 5) 22:28:11 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:11 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x7, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:11 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x5}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:11 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000100ab00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:11 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x11}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:11 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x8, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2241.522585][T26161] FAULT_INJECTION: forcing a failure. [ 2241.522585][T26161] name failslab, interval 1, probability 0, space 0, times 0 [ 2241.541125][T26160] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2241.563355][T26161] CPU: 1 PID: 26161 Comm: syz-executor.2 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2241.573492][T26161] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2241.583679][T26161] Call Trace: [ 2241.586992][T26161] [ 2241.589962][T26161] dump_stack_lvl+0x125/0x1b0 [ 2241.594701][T26161] should_fail_ex+0x496/0x5b0 [ 2241.599448][T26161] should_failslab+0x9/0x20 [ 2241.604010][T26161] kmem_cache_alloc+0x69/0x380 [ 2241.608842][T26161] skb_clone+0x171/0x3c0 [ 2241.613133][T26161] netlink_deliver_tap+0xb35/0xd00 [ 2241.618311][T26161] netlink_unicast+0x5fa/0x810 [ 2241.623129][T26161] ? netlink_attachskb+0x880/0x880 [ 2241.628294][T26161] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2241.634233][T26161] ? __phys_addr_symbol+0x30/0x70 [ 2241.639310][T26161] ? __check_object_size+0x323/0x730 [ 2241.644931][T26161] netlink_sendmsg+0x93c/0xe40 [ 2241.649848][T26161] ? netlink_unicast+0x810/0x810 [ 2241.655034][T26161] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2241.660367][T26161] ? netlink_unicast+0x810/0x810 [ 2241.665359][T26161] __sock_sendmsg+0xd5/0x180 [ 2241.670098][T26161] ____sys_sendmsg+0x6ac/0x940 [ 2241.674924][T26161] ? copy_msghdr_from_user+0x10b/0x160 [ 2241.680433][T26161] ? kernel_sendmsg+0x50/0x50 [ 2241.685253][T26161] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2241.691471][T26161] ? find_held_lock+0x2d/0x110 [ 2241.696294][T26161] ___sys_sendmsg+0x135/0x1d0 [ 2241.701017][T26161] ? do_recvmmsg+0x740/0x740 [ 2241.705658][T26161] ? find_held_lock+0x2d/0x110 [ 2241.710532][T26161] ? __fget_light+0xe6/0x260 [ 2241.715272][T26161] __sys_sendmsg+0x117/0x1e0 [ 2241.720002][T26161] ? __sys_sendmsg_sock+0x30/0x30 [ 2241.725210][T26161] ? syscall_enter_from_user_mode+0x26/0x80 [ 2241.726155][T26160] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2241.731486][T26161] do_syscall_64+0x3f/0x110 [ 2241.745223][T26161] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2241.751169][T26161] RIP: 0033:0x7f0d48a7cae9 [ 2241.755619][T26161] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2241.775707][T26161] RSP: 002b:00007f0d498570c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2241.784276][T26161] RAX: ffffffffffffffda RBX: 00007f0d48b9bf80 RCX: 00007f0d48a7cae9 [ 2241.792286][T26161] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2241.800290][T26161] RBP: 00007f0d49857120 R08: 0000000000000000 R09: 0000000000000000 [ 2241.808290][T26161] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 2241.816387][T26161] R13: 000000000000000b R14: 00007f0d48b9bf80 R15: 00007fffa7f00e48 [ 2241.824416][T26161] [ 2241.831583][T26160] CPU: 0 PID: 26160 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2241.841709][T26160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2241.851804][T26160] Call Trace: [ 2241.855119][T26160] [ 2241.858153][T26160] dump_stack_lvl+0x125/0x1b0 [ 2241.862896][T26160] sysfs_warn_dup+0x7f/0xa0 [ 2241.867474][T26160] sysfs_create_dir_ns+0x247/0x2a0 [ 2241.872700][T26160] ? sysfs_create_mount_point+0xb0/0xb0 [ 2241.878310][T26160] ? spin_bug+0x1d0/0x1d0 [ 2241.882898][T26160] ? net_namespace+0x12/0x40 [ 2241.887541][T26160] ? device_namespace+0x8d/0xc0 [ 2241.892468][T26160] kobject_add_internal+0x2c8/0x960 [ 2241.897742][T26160] kobject_add+0x16f/0x240 [ 2241.902224][T26160] ? kset_create_and_add+0x190/0x190 [ 2241.907575][T26160] ? do_raw_spin_unlock+0x173/0x230 [ 2241.912833][T26160] ? kobject_put+0xbe/0x440 [ 2241.917401][T26160] device_add+0x289/0x1aa0 22:28:11 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x3, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:11 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x6}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2241.921864][T26160] ? device_initialize+0x510/0x510 [ 2241.927039][T26160] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2241.933955][T26160] ? __init_waitqueue_head+0xca/0x150 [ 2241.939389][T26160] netdev_register_kobject+0x183/0x3f0 [ 2241.945092][T26160] register_netdevice+0xbdf/0x14a0 [ 2241.950265][T26160] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2241.956215][T26160] ? validate_linkmsg+0x6fc/0x9c0 [ 2241.961390][T26160] br_dev_newlink+0x27/0x110 [ 2241.966103][T26160] ? br_changelink+0x1760/0x1760 [ 2241.971382][T26160] __rtnl_newlink+0x1173/0x1930 [ 2241.976295][T26160] ? rtnl_link_unregister+0x260/0x260 [ 2241.981766][T26160] rtnl_newlink+0x67/0xa0 [ 2241.986321][T26160] ? __rtnl_newlink+0x1930/0x1930 [ 2241.991630][T26160] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2241.996918][T26160] ? rtnl_getlink+0xb40/0xb40 [ 2242.001753][T26160] netlink_rcv_skb+0x16b/0x440 [ 2242.006564][T26160] ? rtnl_getlink+0xb40/0xb40 [ 2242.011294][T26160] ? netlink_ack+0x1370/0x1370 [ 2242.016146][T26160] ? netlink_deliver_tap+0x1a0/0xd00 [ 2242.021485][T26160] netlink_unicast+0x53b/0x810 [ 2242.026450][T26160] ? netlink_attachskb+0x880/0x880 [ 2242.031606][T26160] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2242.037553][T26160] ? __phys_addr_symbol+0x30/0x70 [ 2242.042822][T26160] ? __check_object_size+0x323/0x730 [ 2242.048185][T26160] netlink_sendmsg+0x93c/0xe40 [ 2242.053025][T26160] ? netlink_unicast+0x810/0x810 [ 2242.058017][T26160] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2242.063348][T26160] ? netlink_unicast+0x810/0x810 [ 2242.068729][T26160] __sock_sendmsg+0xd5/0x180 [ 2242.073369][T26160] ____sys_sendmsg+0x6ac/0x940 [ 2242.078187][T26160] ? copy_msghdr_from_user+0x10b/0x160 [ 2242.083750][T26160] ? kernel_sendmsg+0x50/0x50 [ 2242.088484][T26160] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2242.094629][T26160] ___sys_sendmsg+0x135/0x1d0 [ 2242.099380][T26160] ? do_recvmmsg+0x740/0x740 [ 2242.104031][T26160] ? find_held_lock+0x2d/0x110 [ 2242.108886][T26160] ? __fget_light+0xe6/0x260 [ 2242.113533][T26160] __sys_sendmsg+0x117/0x1e0 [ 2242.118168][T26160] ? __sys_sendmsg_sock+0x30/0x30 [ 2242.123228][T26160] ? xfd_validate_state+0x5d/0x180 [ 2242.128654][T26160] ? syscall_enter_from_user_mode+0x26/0x80 [ 2242.134604][T26160] do_syscall_64+0x3f/0x110 [ 2242.139263][T26160] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2242.145245][T26160] RIP: 0033:0x7f874a47cae9 [ 2242.149714][T26160] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 22:28:12 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x4, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) [ 2242.170510][T26160] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2242.178987][T26160] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2242.187090][T26160] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2242.195139][T26160] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2242.203166][T26160] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2242.211202][T26160] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2242.219425][T26160] 22:28:12 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0xa, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2242.267162][T26160] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:12 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0xa, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) [ 2242.390549][T26167] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2242.441254][T26167] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2242.454350][T26167] CPU: 0 PID: 26167 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2242.464458][T26167] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2242.474547][T26167] Call Trace: [ 2242.477850][T26167] [ 2242.480804][T26167] dump_stack_lvl+0x125/0x1b0 [ 2242.485535][T26167] sysfs_warn_dup+0x7f/0xa0 [ 2242.490101][T26167] sysfs_create_dir_ns+0x247/0x2a0 [ 2242.495274][T26167] ? sysfs_create_mount_point+0xb0/0xb0 [ 2242.500892][T26167] ? spin_bug+0x1d0/0x1d0 [ 2242.506576][T26167] ? net_namespace+0x12/0x40 [ 2242.511206][T26167] ? device_namespace+0x8d/0xc0 [ 2242.516132][T26167] kobject_add_internal+0x2c8/0x960 [ 2242.521527][T26167] kobject_add+0x16f/0x240 [ 2242.526003][T26167] ? kset_create_and_add+0x190/0x190 [ 2242.531344][T26167] ? do_raw_spin_unlock+0x173/0x230 [ 2242.536694][T26167] ? kobject_put+0xbe/0x440 [ 2242.541331][T26167] device_add+0x289/0x1aa0 [ 2242.545798][T26167] ? device_initialize+0x510/0x510 [ 2242.551014][T26167] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2242.557927][T26167] ? __init_waitqueue_head+0xca/0x150 [ 2242.563352][T26167] netdev_register_kobject+0x183/0x3f0 [ 2242.569035][T26167] register_netdevice+0xbdf/0x14a0 [ 2242.574190][T26167] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2242.580135][T26167] veth_newlink+0x4ef/0xa00 [ 2242.584697][T26167] ? veth_set_features+0x2d0/0x2d0 [ 2242.589948][T26167] ? rtnl_create_link+0xc9c/0xfd0 [ 2242.595196][T26167] ? __rtnl_newlink+0x108a/0x1930 [ 2242.600400][T26167] ? rtnl_newlink+0x67/0xa0 [ 2242.605269][T26167] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2242.610532][T26167] ? alloc_netdev_mqs+0xee6/0x1290 [ 2242.615791][T26167] ? rtnl_create_link+0xa6d/0xfd0 [ 2242.620974][T26167] ? veth_set_features+0x2d0/0x2d0 [ 2242.626146][T26167] __rtnl_newlink+0x1173/0x1930 [ 2242.631062][T26167] ? rtnl_link_unregister+0x260/0x260 [ 2242.636531][T26167] rtnl_newlink+0x67/0xa0 [ 2242.640917][T26167] ? __rtnl_newlink+0x1930/0x1930 [ 2242.645997][T26167] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2242.650985][T26167] ? rtnl_getlink+0xb40/0xb40 [ 2242.655807][T26167] netlink_rcv_skb+0x16b/0x440 [ 2242.660703][T26167] ? rtnl_getlink+0xb40/0xb40 [ 2242.665424][T26167] ? netlink_ack+0x1370/0x1370 [ 2242.670264][T26167] ? netlink_deliver_tap+0x1a0/0xd00 [ 2242.675620][T26167] netlink_unicast+0x53b/0x810 [ 2242.680442][T26167] ? netlink_attachskb+0x880/0x880 [ 2242.685786][T26167] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2242.691726][T26167] ? __phys_addr_symbol+0x30/0x70 [ 2242.696803][T26167] ? __check_object_size+0x323/0x730 [ 2242.702153][T26167] netlink_sendmsg+0x93c/0xe40 [ 2242.706976][T26167] ? netlink_unicast+0x810/0x810 [ 2242.711964][T26167] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2242.717306][T26167] ? netlink_unicast+0x810/0x810 [ 2242.722302][T26167] __sock_sendmsg+0xd5/0x180 [ 2242.726940][T26167] ____sys_sendmsg+0x6ac/0x940 [ 2242.731746][T26167] ? copy_msghdr_from_user+0x10b/0x160 [ 2242.737262][T26167] ? kernel_sendmsg+0x50/0x50 [ 2242.742520][T26167] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2242.748576][T26167] ___sys_sendmsg+0x135/0x1d0 [ 2242.753319][T26167] ? do_recvmmsg+0x740/0x740 [ 2242.757954][T26167] ? find_held_lock+0x2d/0x110 [ 2242.762803][T26167] ? __fget_light+0xe6/0x260 [ 2242.767450][T26167] __sys_sendmsg+0x117/0x1e0 [ 2242.772094][T26167] ? __sys_sendmsg_sock+0x30/0x30 [ 2242.777602][T26167] ? xfd_validate_state+0x5d/0x180 [ 2242.782894][T26167] ? syscall_enter_from_user_mode+0x26/0x80 [ 2242.788922][T26167] do_syscall_64+0x3f/0x110 [ 2242.793611][T26167] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2242.799549][T26167] RIP: 0033:0x7f70d3c7cae9 [ 2242.804007][T26167] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2242.823922][T26167] RSP: 002b:00007f70d48ed0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2242.832381][T26167] RAX: ffffffffffffffda RBX: 00007f70d3d9c050 RCX: 00007f70d3c7cae9 [ 2242.840396][T26167] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004 [ 2242.848403][T26167] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2242.856441][T26167] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2242.864451][T26167] R13: 000000000000006e R14: 00007f70d3d9c050 R15: 00007ffd93047b68 [ 2242.872486][T26167] [ 2242.913369][T26167] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2242.943400][T26169] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2242.954324][T26161] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. 22:28:13 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x7}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:13 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0xe, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:13 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0xc, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:13 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x14}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) [ 2243.000477][T26174] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:28:13 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000101ab00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:13 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) 22:28:13 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x10, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:13 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0xf, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2243.160977][T26199] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2243.189808][T26199] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2243.202554][T26199] CPU: 0 PID: 26199 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2243.212850][T26199] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2243.222921][T26199] Call Trace: [ 2243.226220][T26199] [ 2243.229257][T26199] dump_stack_lvl+0x125/0x1b0 [ 2243.234487][T26199] sysfs_warn_dup+0x7f/0xa0 [ 2243.239029][T26199] sysfs_create_dir_ns+0x247/0x2a0 [ 2243.244176][T26199] ? sysfs_create_mount_point+0xb0/0xb0 [ 2243.249838][T26199] ? spin_bug+0x1d0/0x1d0 [ 2243.254201][T26199] ? net_namespace+0x12/0x40 [ 2243.258806][T26199] ? device_namespace+0x8d/0xc0 [ 2243.263771][T26199] kobject_add_internal+0x2c8/0x960 [ 2243.269535][T26199] kobject_add+0x16f/0x240 [ 2243.274687][T26199] ? kset_create_and_add+0x190/0x190 [ 2243.280002][T26199] ? do_raw_spin_unlock+0x173/0x230 [ 2243.285319][T26199] ? kobject_put+0xbe/0x440 [ 2243.289947][T26199] device_add+0x289/0x1aa0 [ 2243.294394][T26199] ? device_initialize+0x510/0x510 [ 2243.299535][T26199] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2243.306418][T26199] ? __init_waitqueue_head+0xca/0x150 [ 2243.311824][T26199] netdev_register_kobject+0x183/0x3f0 [ 2243.317313][T26199] register_netdevice+0xbdf/0x14a0 [ 2243.322448][T26199] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2243.328367][T26199] veth_newlink+0x4ef/0xa00 [ 2243.332894][T26199] ? veth_set_features+0x2d0/0x2d0 [ 2243.338038][T26199] ? rtnl_create_link+0xc9c/0xfd0 [ 2243.343092][T26199] ? __rtnl_newlink+0x108a/0x1930 [ 2243.348217][T26199] ? rtnl_newlink+0x67/0xa0 [ 2243.352793][T26199] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2243.358028][T26199] ? alloc_netdev_mqs+0xee6/0x1290 [ 2243.363226][T26199] ? rtnl_create_link+0xa6d/0xfd0 [ 2243.368283][T26199] ? veth_set_features+0x2d0/0x2d0 [ 2243.373416][T26199] __rtnl_newlink+0x1173/0x1930 [ 2243.378298][T26199] ? rtnl_link_unregister+0x260/0x260 [ 2243.383845][T26199] rtnl_newlink+0x67/0xa0 [ 2243.388208][T26199] ? __rtnl_newlink+0x1930/0x1930 [ 2243.393697][T26199] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2243.398797][T26199] ? rtnl_getlink+0xb40/0xb40 [ 2243.403662][T26199] netlink_rcv_skb+0x16b/0x440 [ 2243.408562][T26199] ? rtnl_getlink+0xb40/0xb40 [ 2243.413269][T26199] ? netlink_ack+0x1370/0x1370 [ 2243.418173][T26199] ? netlink_deliver_tap+0x1a0/0xd00 [ 2243.423596][T26199] netlink_unicast+0x53b/0x810 [ 2243.428415][T26199] ? netlink_attachskb+0x880/0x880 [ 2243.433566][T26199] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2243.439489][T26199] ? __phys_addr_symbol+0x30/0x70 [ 2243.444630][T26199] ? __check_object_size+0x323/0x730 [ 2243.449956][T26199] netlink_sendmsg+0x93c/0xe40 [ 2243.454749][T26199] ? netlink_unicast+0x810/0x810 [ 2243.459715][T26199] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2243.465030][T26199] ? netlink_unicast+0x810/0x810 [ 2243.469988][T26199] __sock_sendmsg+0xd5/0x180 [ 2243.474600][T26199] ____sys_sendmsg+0x6ac/0x940 [ 2243.479377][T26199] ? copy_msghdr_from_user+0x10b/0x160 [ 2243.484954][T26199] ? kernel_sendmsg+0x50/0x50 [ 2243.489946][T26199] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2243.495965][T26199] ___sys_sendmsg+0x135/0x1d0 [ 2243.501278][T26199] ? do_recvmmsg+0x740/0x740 [ 2243.505901][T26199] ? find_held_lock+0x2d/0x110 [ 2243.510814][T26199] ? __fget_light+0xe6/0x260 [ 2243.515448][T26199] __sys_sendmsg+0x117/0x1e0 [ 2243.520059][T26199] ? __sys_sendmsg_sock+0x30/0x30 [ 2243.525098][T26199] ? xfd_validate_state+0x5d/0x180 [ 2243.530254][T26199] ? syscall_enter_from_user_mode+0x26/0x80 [ 2243.536486][T26199] do_syscall_64+0x3f/0x110 [ 2243.541187][T26199] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2243.547101][T26199] RIP: 0033:0x7f70d3c7cae9 [ 2243.551557][T26199] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2243.571179][T26199] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2243.579972][T26199] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2243.588053][T26199] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2243.596552][T26199] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2243.604615][T26199] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2243.612594][T26199] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2243.620615][T26199] [ 2243.648774][T26199] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:13 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x8}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:13 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x14, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:13 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x41, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2243.749102][T26201] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. 22:28:13 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x9}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:13 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) [ 2243.854701][T26203] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. 22:28:13 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x42, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:13 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) [ 2243.895302][T26208] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2243.955380][T26208] CPU: 0 PID: 26208 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2243.965531][T26208] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2243.975710][T26208] Call Trace: [ 2243.979017][T26208] [ 2243.981976][T26208] dump_stack_lvl+0x125/0x1b0 [ 2243.987072][T26208] sysfs_warn_dup+0x7f/0xa0 [ 2243.991730][T26208] sysfs_create_dir_ns+0x247/0x2a0 [ 2243.996904][T26208] ? sysfs_create_mount_point+0xb0/0xb0 [ 2244.002503][T26208] ? spin_bug+0x1d0/0x1d0 [ 2244.006982][T26208] ? net_namespace+0x12/0x40 [ 2244.011614][T26208] ? device_namespace+0x8d/0xc0 [ 2244.016558][T26208] kobject_add_internal+0x2c8/0x960 [ 2244.021829][T26208] kobject_add+0x16f/0x240 [ 2244.026304][T26208] ? kset_create_and_add+0x190/0x190 [ 2244.031651][T26208] ? do_raw_spin_unlock+0x173/0x230 [ 2244.036911][T26208] ? kobject_put+0xbe/0x440 [ 2244.041486][T26208] device_add+0x289/0x1aa0 [ 2244.046041][T26208] ? device_initialize+0x510/0x510 [ 2244.051192][T26208] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2244.058083][T26208] ? __init_waitqueue_head+0xca/0x150 [ 2244.063487][T26208] netdev_register_kobject+0x183/0x3f0 [ 2244.068999][T26208] register_netdevice+0xbdf/0x14a0 [ 2244.074141][T26208] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2244.080065][T26208] ? validate_linkmsg+0x6fc/0x9c0 [ 2244.085125][T26208] br_dev_newlink+0x27/0x110 [ 2244.089745][T26208] ? br_changelink+0x1760/0x1760 [ 2244.094706][T26208] __rtnl_newlink+0x1173/0x1930 [ 2244.099583][T26208] ? rtnl_link_unregister+0x260/0x260 [ 2244.105006][T26208] rtnl_newlink+0x67/0xa0 [ 2244.109390][T26208] ? __rtnl_newlink+0x1930/0x1930 [ 2244.114431][T26208] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2244.119388][T26208] ? rtnl_getlink+0xb40/0xb40 [ 2244.124108][T26208] netlink_rcv_skb+0x16b/0x440 [ 2244.128905][T26208] ? rtnl_getlink+0xb40/0xb40 [ 2244.133603][T26208] ? netlink_ack+0x1370/0x1370 [ 2244.138407][T26208] ? netlink_deliver_tap+0x1a0/0xd00 [ 2244.143891][T26208] netlink_unicast+0x53b/0x810 [ 2244.148687][T26208] ? netlink_attachskb+0x880/0x880 [ 2244.153992][T26208] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2244.159908][T26208] ? __phys_addr_symbol+0x30/0x70 [ 2244.164961][T26208] ? __check_object_size+0x323/0x730 [ 2244.170288][T26208] netlink_sendmsg+0x93c/0xe40 [ 2244.175165][T26208] ? netlink_unicast+0x810/0x810 [ 2244.180128][T26208] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2244.185432][T26208] ? netlink_unicast+0x810/0x810 [ 2244.190496][T26208] __sock_sendmsg+0xd5/0x180 [ 2244.195721][T26208] ____sys_sendmsg+0x6ac/0x940 [ 2244.200503][T26208] ? copy_msghdr_from_user+0x10b/0x160 [ 2244.205982][T26208] ? kernel_sendmsg+0x50/0x50 [ 2244.210770][T26208] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2244.216785][T26208] ___sys_sendmsg+0x135/0x1d0 [ 2244.221487][T26208] ? do_recvmmsg+0x740/0x740 [ 2244.226099][T26208] ? find_held_lock+0x2d/0x110 [ 2244.230920][T26208] ? __fget_light+0xe6/0x260 [ 2244.235631][T26208] __sys_sendmsg+0x117/0x1e0 [ 2244.240257][T26208] ? __sys_sendmsg_sock+0x30/0x30 [ 2244.245297][T26208] ? xfd_validate_state+0x5d/0x180 [ 2244.250466][T26208] ? syscall_enter_from_user_mode+0x26/0x80 [ 2244.256386][T26208] do_syscall_64+0x3f/0x110 [ 2244.260922][T26208] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2244.266832][T26208] RIP: 0033:0x7f874a47cae9 [ 2244.273343][T26208] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2244.293226][T26208] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2244.301914][T26208] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2244.310086][T26208] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2244.318067][T26208] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2244.326054][T26208] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2244.334080][T26208] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2244.342088][T26208] [ 2244.364005][T26208] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:14 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x2, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:14 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000102ab00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:14 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0xa}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:14 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x1f4, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:14 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x15}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:14 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x2, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) 22:28:14 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0xb}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:14 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x240, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:14 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x4, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) [ 2244.623736][T26234] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2244.698634][T26234] CPU: 1 PID: 26234 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2244.708771][T26234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2244.718867][T26234] Call Trace: [ 2244.722178][T26234] [ 2244.725135][T26234] dump_stack_lvl+0x125/0x1b0 [ 2244.729876][T26234] sysfs_warn_dup+0x7f/0xa0 [ 2244.734443][T26234] sysfs_create_dir_ns+0x247/0x2a0 [ 2244.739779][T26234] ? sysfs_create_mount_point+0xb0/0xb0 22:28:14 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x6, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:14 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0xc}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2244.745481][T26234] ? spin_bug+0x1d0/0x1d0 [ 2244.749905][T26234] ? net_namespace+0x12/0x40 [ 2244.754534][T26234] ? device_namespace+0x8d/0xc0 [ 2244.759485][T26234] kobject_add_internal+0x2c8/0x960 [ 2244.764742][T26234] kobject_add+0x16f/0x240 [ 2244.769212][T26234] ? kset_create_and_add+0x190/0x190 [ 2244.774577][T26234] ? do_raw_spin_unlock+0x173/0x230 [ 2244.781309][T26234] ? kobject_put+0xbe/0x440 [ 2244.785882][T26234] device_add+0x289/0x1aa0 [ 2244.790342][T26234] ? device_initialize+0x510/0x510 [ 2244.795599][T26234] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2244.802591][T26234] ? __init_waitqueue_head+0xca/0x150 [ 2244.808021][T26234] netdev_register_kobject+0x183/0x3f0 [ 2244.813547][T26234] register_netdevice+0xbdf/0x14a0 [ 2244.818722][T26234] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2244.824670][T26234] veth_newlink+0x4ef/0xa00 [ 2244.829235][T26234] ? veth_set_features+0x2d0/0x2d0 [ 2244.834663][T26234] ? rtnl_create_link+0xc9c/0xfd0 [ 2244.839742][T26234] ? __rtnl_newlink+0x108a/0x1930 [ 2244.844811][T26234] ? rtnl_newlink+0x67/0xa0 [ 2244.849430][T26234] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2244.854689][T26234] ? alloc_netdev_mqs+0xee6/0x1290 [ 2244.859865][T26234] ? rtnl_create_link+0xa6d/0xfd0 [ 2244.864971][T26234] ? veth_set_features+0x2d0/0x2d0 [ 2244.870225][T26234] __rtnl_newlink+0x1173/0x1930 [ 2244.875142][T26234] ? rtnl_link_unregister+0x260/0x260 [ 2244.880600][T26234] rtnl_newlink+0x67/0xa0 [ 2244.884988][T26234] ? __rtnl_newlink+0x1930/0x1930 [ 2244.890057][T26234] rtnetlink_rcv_msg+0x3c7/0xe00 22:28:14 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0xe}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2244.895217][T26234] ? rtnl_getlink+0xb40/0xb40 [ 2244.899977][T26234] netlink_rcv_skb+0x16b/0x440 [ 2244.904792][T26234] ? rtnl_getlink+0xb40/0xb40 [ 2244.909512][T26234] ? netlink_ack+0x1370/0x1370 [ 2244.914349][T26234] ? netlink_deliver_tap+0x1a0/0xd00 [ 2244.919689][T26234] netlink_unicast+0x53b/0x810 [ 2244.924511][T26234] ? netlink_attachskb+0x880/0x880 [ 2244.929716][T26234] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2244.935836][T26234] ? __phys_addr_symbol+0x30/0x70 [ 2244.940911][T26234] ? __check_object_size+0x323/0x730 22:28:15 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x7, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) [ 2244.946279][T26234] netlink_sendmsg+0x93c/0xe40 [ 2244.951120][T26234] ? netlink_unicast+0x810/0x810 [ 2244.956378][T26234] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2244.961707][T26234] ? netlink_unicast+0x810/0x810 [ 2244.966781][T26234] __sock_sendmsg+0xd5/0x180 [ 2244.971410][T26234] ____sys_sendmsg+0x6ac/0x940 [ 2244.976216][T26234] ? copy_msghdr_from_user+0x10b/0x160 [ 2244.981901][T26234] ? kernel_sendmsg+0x50/0x50 [ 2244.986633][T26234] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2244.992863][T26234] ___sys_sendmsg+0x135/0x1d0 [ 2244.997705][T26234] ? trace_napi_poll_hit+0x1c8/0x510 [ 2245.003199][T26234] ? do_recvmmsg+0x740/0x740 [ 2245.007841][T26234] ? find_held_lock+0x2d/0x110 [ 2245.012679][T26234] ? net_rx_action+0x8f5/0xe90 [ 2245.017784][T26234] ? __fget_light+0xe6/0x260 [ 2245.022458][T26234] __sys_sendmsg+0x117/0x1e0 [ 2245.027103][T26234] ? __sys_sendmsg_sock+0x30/0x30 [ 2245.032204][T26234] ? lockdep_softirqs_on+0x225/0x340 [ 2245.037662][T26234] ? syscall_enter_from_user_mode+0x26/0x80 [ 2245.043699][T26234] do_syscall_64+0x3f/0x110 [ 2245.048263][T26234] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2245.054209][T26234] RIP: 0033:0x7f70d3c7cae9 [ 2245.058732][T26234] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2245.078383][T26234] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2245.086858][T26234] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2245.094874][T26234] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2245.102882][T26234] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2245.110886][T26234] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2245.118890][T26234] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2245.126919][T26234] [ 2245.168618][T26234] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2245.255834][T26245] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2245.283362][T26245] CPU: 1 PID: 26245 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2245.293497][T26245] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2245.303849][T26245] Call Trace: [ 2245.307150][T26245] [ 2245.310104][T26245] dump_stack_lvl+0x125/0x1b0 [ 2245.314833][T26245] sysfs_warn_dup+0x7f/0xa0 [ 2245.319480][T26245] sysfs_create_dir_ns+0x247/0x2a0 [ 2245.324638][T26245] ? sysfs_create_mount_point+0xb0/0xb0 [ 2245.330240][T26245] ? spin_bug+0x1d0/0x1d0 [ 2245.334617][T26245] ? net_namespace+0x12/0x40 [ 2245.339232][T26245] ? device_namespace+0x8d/0xc0 [ 2245.344139][T26245] kobject_add_internal+0x2c8/0x960 [ 2245.349398][T26245] kobject_add+0x16f/0x240 [ 2245.353877][T26245] ? kset_create_and_add+0x190/0x190 [ 2245.359224][T26245] ? do_raw_spin_unlock+0x173/0x230 [ 2245.364568][T26245] ? kobject_put+0xbe/0x440 [ 2245.369148][T26245] device_add+0x289/0x1aa0 [ 2245.373786][T26245] ? device_initialize+0x510/0x510 [ 2245.378968][T26245] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2245.386302][T26245] ? __init_waitqueue_head+0xca/0x150 [ 2245.391741][T26245] netdev_register_kobject+0x183/0x3f0 [ 2245.397335][T26245] register_netdevice+0xbdf/0x14a0 [ 2245.402478][T26245] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2245.408392][T26245] ? validate_linkmsg+0x6fc/0x9c0 [ 2245.413464][T26245] br_dev_newlink+0x27/0x110 [ 2245.418253][T26245] ? br_changelink+0x1760/0x1760 [ 2245.423212][T26245] __rtnl_newlink+0x1173/0x1930 [ 2245.428093][T26245] ? rtnl_link_unregister+0x260/0x260 [ 2245.433513][T26245] rtnl_newlink+0x67/0xa0 [ 2245.437857][T26245] ? __rtnl_newlink+0x1930/0x1930 [ 2245.442893][T26245] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2245.447854][T26245] ? rtnl_getlink+0xb40/0xb40 [ 2245.452565][T26245] netlink_rcv_skb+0x16b/0x440 [ 2245.457349][T26245] ? rtnl_getlink+0xb40/0xb40 [ 2245.462050][T26245] ? netlink_ack+0x1370/0x1370 [ 2245.466937][T26245] ? netlink_deliver_tap+0x1a0/0xd00 [ 2245.472255][T26245] netlink_unicast+0x53b/0x810 [ 2245.477044][T26245] ? netlink_attachskb+0x880/0x880 [ 2245.482344][T26245] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2245.488256][T26245] ? __phys_addr_symbol+0x30/0x70 [ 2245.493301][T26245] ? __check_object_size+0x323/0x730 [ 2245.498633][T26245] netlink_sendmsg+0x93c/0xe40 [ 2245.503428][T26245] ? netlink_unicast+0x810/0x810 [ 2245.508485][T26245] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2245.514656][T26245] ? netlink_unicast+0x810/0x810 [ 2245.519625][T26245] __sock_sendmsg+0xd5/0x180 [ 2245.524232][T26245] ____sys_sendmsg+0x6ac/0x940 [ 2245.529013][T26245] ? copy_msghdr_from_user+0x10b/0x160 [ 2245.534489][T26245] ? kernel_sendmsg+0x50/0x50 [ 2245.539285][T26245] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2245.545298][T26245] ___sys_sendmsg+0x135/0x1d0 [ 2245.549995][T26245] ? do_recvmmsg+0x740/0x740 [ 2245.554779][T26245] ? find_held_lock+0x2d/0x110 [ 2245.559594][T26245] ? __fget_light+0xe6/0x260 [ 2245.564215][T26245] __sys_sendmsg+0x117/0x1e0 [ 2245.568824][T26245] ? __sys_sendmsg_sock+0x30/0x30 [ 2245.573947][T26245] ? xfd_validate_state+0x5d/0x180 [ 2245.579100][T26245] ? syscall_enter_from_user_mode+0x26/0x80 [ 2245.585010][T26245] do_syscall_64+0x3f/0x110 [ 2245.589545][T26245] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2245.595455][T26245] RIP: 0033:0x7f874a47cae9 [ 2245.599880][T26245] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2245.619849][T26245] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2245.628277][T26245] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2245.636520][T26245] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2245.644762][T26245] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2245.652741][T26245] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2245.660724][T26245] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2245.668815][T26245] [ 2245.685681][T26245] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:15 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000103ab00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:15 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0xf}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:15 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x9, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:15 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x60}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:15 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x300, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:15 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x3, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) 22:28:15 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0xa, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) [ 2245.907450][T26268] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2245.925400][T26268] CPU: 0 PID: 26268 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2245.935617][T26268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2245.948407][T26268] Call Trace: [ 2245.951734][T26268] [ 2245.954724][T26268] dump_stack_lvl+0x125/0x1b0 [ 2245.959550][T26268] sysfs_warn_dup+0x7f/0xa0 [ 2245.964114][T26268] sysfs_create_dir_ns+0x247/0x2a0 [ 2245.969284][T26268] ? sysfs_create_mount_point+0xb0/0xb0 [ 2245.974966][T26268] ? spin_bug+0x1d0/0x1d0 [ 2245.979331][T26268] ? net_namespace+0x12/0x40 [ 2245.983967][T26268] ? device_namespace+0x8d/0xc0 [ 2245.988856][T26268] kobject_add_internal+0x2c8/0x960 [ 2245.994096][T26268] kobject_add+0x16f/0x240 [ 2245.998569][T26268] ? kset_create_and_add+0x190/0x190 [ 2246.003975][T26268] ? do_raw_spin_unlock+0x173/0x230 [ 2246.009206][T26268] ? kobject_put+0xbe/0x440 [ 2246.013751][T26268] device_add+0x289/0x1aa0 [ 2246.018190][T26268] ? device_initialize+0x510/0x510 [ 2246.023331][T26268] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2246.030312][T26268] ? __init_waitqueue_head+0xca/0x150 [ 2246.035733][T26268] netdev_register_kobject+0x183/0x3f0 [ 2246.041318][T26268] register_netdevice+0xbdf/0x14a0 [ 2246.046598][T26268] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2246.052526][T26268] ? validate_linkmsg+0x6fc/0x9c0 [ 2246.057590][T26268] br_dev_newlink+0x27/0x110 [ 2246.062225][T26268] ? br_changelink+0x1760/0x1760 [ 2246.067190][T26268] __rtnl_newlink+0x1173/0x1930 [ 2246.072086][T26268] ? rtnl_link_unregister+0x260/0x260 [ 2246.077517][T26268] rtnl_newlink+0x67/0xa0 [ 2246.081958][T26268] ? __rtnl_newlink+0x1930/0x1930 [ 2246.087002][T26268] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2246.091984][T26268] ? rtnl_getlink+0xb40/0xb40 [ 2246.096808][T26268] netlink_rcv_skb+0x16b/0x440 [ 2246.101602][T26268] ? rtnl_getlink+0xb40/0xb40 [ 2246.106303][T26268] ? netlink_ack+0x1370/0x1370 [ 2246.111114][T26268] ? netlink_deliver_tap+0x1a0/0xd00 [ 2246.116449][T26268] netlink_unicast+0x53b/0x810 [ 2246.121334][T26268] ? netlink_attachskb+0x880/0x880 [ 2246.126464][T26268] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2246.132373][T26268] ? __phys_addr_symbol+0x30/0x70 [ 2246.137414][T26268] ? __check_object_size+0x323/0x730 [ 2246.142734][T26268] netlink_sendmsg+0x93c/0xe40 [ 2246.147528][T26268] ? netlink_unicast+0x810/0x810 [ 2246.152492][T26268] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2246.157794][T26268] ? netlink_unicast+0x810/0x810 [ 2246.162763][T26268] __sock_sendmsg+0xd5/0x180 [ 2246.167370][T26268] ____sys_sendmsg+0x6ac/0x940 [ 2246.172158][T26268] ? copy_msghdr_from_user+0x10b/0x160 [ 2246.177640][T26268] ? kernel_sendmsg+0x50/0x50 [ 2246.182349][T26268] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2246.188371][T26268] ___sys_sendmsg+0x135/0x1d0 [ 2246.193075][T26268] ? do_recvmmsg+0x740/0x740 [ 2246.197684][T26268] ? find_held_lock+0x2d/0x110 [ 2246.202764][T26268] ? __fget_light+0xe6/0x260 [ 2246.207468][T26268] __sys_sendmsg+0x117/0x1e0 [ 2246.212337][T26268] ? __sys_sendmsg_sock+0x30/0x30 [ 2246.217376][T26268] ? xfd_validate_state+0x5d/0x180 [ 2246.222529][T26268] ? syscall_enter_from_user_mode+0x26/0x80 [ 2246.228531][T26268] do_syscall_64+0x3f/0x110 [ 2246.233057][T26268] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2246.238980][T26268] RIP: 0033:0x7f874a47cae9 [ 2246.243497][T26268] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2246.264597][T26268] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2246.273031][T26268] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2246.281020][T26268] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2246.289002][T26268] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2246.296983][T26268] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 22:28:16 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x10}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:16 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0xf, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) [ 2246.305066][T26268] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2246.313083][T26268] 22:28:16 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x3e8, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2246.431544][T26268] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:16 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x11}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:16 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0xfc, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) [ 2246.525344][T26270] __nla_validate_parse: 9 callbacks suppressed [ 2246.525369][T26270] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. [ 2246.595260][T26273] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2246.639880][T26273] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2246.664828][T26273] CPU: 0 PID: 26273 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2246.674962][T26273] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2246.685057][T26273] Call Trace: [ 2246.688359][T26273] [ 2246.691319][T26273] dump_stack_lvl+0x125/0x1b0 [ 2246.696051][T26273] sysfs_warn_dup+0x7f/0xa0 [ 2246.700632][T26273] sysfs_create_dir_ns+0x247/0x2a0 [ 2246.705886][T26273] ? sysfs_create_mount_point+0xb0/0xb0 [ 2246.711481][T26273] ? spin_bug+0x1d0/0x1d0 [ 2246.715867][T26273] ? net_namespace+0x12/0x40 [ 2246.720598][T26273] ? device_namespace+0x8d/0xc0 [ 2246.725599][T26273] kobject_add_internal+0x2c8/0x960 [ 2246.730947][T26273] kobject_add+0x16f/0x240 [ 2246.735416][T26273] ? kset_create_and_add+0x190/0x190 [ 2246.740751][T26273] ? do_raw_spin_unlock+0x173/0x230 [ 2246.746013][T26273] ? kobject_put+0xbe/0x440 [ 2246.750587][T26273] device_add+0x289/0x1aa0 [ 2246.755055][T26273] ? device_initialize+0x510/0x510 [ 2246.760238][T26273] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2246.767157][T26273] ? __init_waitqueue_head+0xca/0x150 [ 2246.772601][T26273] netdev_register_kobject+0x183/0x3f0 [ 2246.778134][T26273] register_netdevice+0xbdf/0x14a0 [ 2246.783387][T26273] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2246.789344][T26273] veth_newlink+0x4ef/0xa00 [ 2246.794077][T26273] ? veth_set_features+0x2d0/0x2d0 [ 2246.799227][T26273] ? rtnl_create_link+0xc9c/0xfd0 [ 2246.804307][T26273] ? __rtnl_newlink+0x108a/0x1930 [ 2246.809372][T26273] ? rtnl_newlink+0x67/0xa0 [ 2246.813990][T26273] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2246.819251][T26273] ? alloc_netdev_mqs+0xee6/0x1290 [ 2246.824425][T26273] ? rtnl_create_link+0xa6d/0xfd0 [ 2246.829522][T26273] ? veth_set_features+0x2d0/0x2d0 [ 2246.834679][T26273] __rtnl_newlink+0x1173/0x1930 [ 2246.839598][T26273] ? rtnl_link_unregister+0x260/0x260 [ 2246.845060][T26273] rtnl_newlink+0x67/0xa0 [ 2246.849434][T26273] ? __rtnl_newlink+0x1930/0x1930 [ 2246.854496][T26273] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2246.859482][T26273] ? rtnl_getlink+0xb40/0xb40 [ 2246.864223][T26273] netlink_rcv_skb+0x16b/0x440 [ 2246.869033][T26273] ? rtnl_getlink+0xb40/0xb40 [ 2246.873756][T26273] ? netlink_ack+0x1370/0x1370 [ 2246.878587][T26273] ? netlink_deliver_tap+0x1a0/0xd00 [ 2246.883938][T26273] netlink_unicast+0x53b/0x810 [ 2246.888768][T26273] ? netlink_attachskb+0x880/0x880 [ 2246.893927][T26273] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2246.900037][T26273] ? __phys_addr_symbol+0x30/0x70 [ 2246.905112][T26273] ? __check_object_size+0x323/0x730 [ 2246.910626][T26273] netlink_sendmsg+0x93c/0xe40 [ 2246.915466][T26273] ? netlink_unicast+0x810/0x810 [ 2246.920473][T26273] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2246.925976][T26273] ? netlink_unicast+0x810/0x810 [ 2246.930959][T26273] __sock_sendmsg+0xd5/0x180 [ 2246.935641][T26273] ____sys_sendmsg+0x6ac/0x940 [ 2246.940451][T26273] ? copy_msghdr_from_user+0x10b/0x160 [ 2246.945952][T26273] ? kernel_sendmsg+0x50/0x50 [ 2246.950678][T26273] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2246.956721][T26273] ___sys_sendmsg+0x135/0x1d0 [ 2246.961443][T26273] ? do_recvmmsg+0x740/0x740 [ 2246.966071][T26273] ? find_held_lock+0x2d/0x110 [ 2246.970927][T26273] ? __fget_light+0xe6/0x260 [ 2246.975579][T26273] __sys_sendmsg+0x117/0x1e0 [ 2246.980228][T26273] ? __sys_sendmsg_sock+0x30/0x30 [ 2246.985304][T26273] ? xfd_validate_state+0x5d/0x180 [ 2246.990511][T26273] ? syscall_enter_from_user_mode+0x26/0x80 [ 2246.996642][T26273] do_syscall_64+0x3f/0x110 [ 2247.001196][T26273] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2247.007138][T26273] RIP: 0033:0x7f70d3c7cae9 [ 2247.011593][T26273] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2247.031256][T26273] RSP: 002b:00007f70d48ed0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2247.039705][T26273] RAX: ffffffffffffffda RBX: 00007f70d3d9c050 RCX: 00007f70d3c7cae9 [ 2247.047709][T26273] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004 [ 2247.055715][T26273] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2247.063714][T26273] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2247.075620][T26273] R13: 000000000000006e R14: 00007f70d3d9c050 R15: 00007ffd93047b68 [ 2247.083652][T26273] 22:28:17 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000100ac00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:17 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x700, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:17 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x12}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2247.109410][T26273] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2247.138349][T26279] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2247.148071][T26283] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:28:17 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0xf0}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:17 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x4, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) 22:28:17 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x12c, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:17 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x13}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:17 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0xa00, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2247.289477][T26297] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. 22:28:17 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x14}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2247.351780][T26297] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2247.400968][T26297] CPU: 0 PID: 26297 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2247.411115][T26297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2247.421217][T26297] Call Trace: [ 2247.424529][T26297] [ 2247.427497][T26297] dump_stack_lvl+0x125/0x1b0 [ 2247.432239][T26297] sysfs_warn_dup+0x7f/0xa0 [ 2247.436805][T26297] sysfs_create_dir_ns+0x247/0x2a0 [ 2247.441979][T26297] ? sysfs_create_mount_point+0xb0/0xb0 [ 2247.447585][T26297] ? spin_bug+0x1d0/0x1d0 [ 2247.452065][T26297] ? net_namespace+0x12/0x40 [ 2247.456704][T26297] ? device_namespace+0x8d/0xc0 [ 2247.461619][T26297] kobject_add_internal+0x2c8/0x960 [ 2247.466896][T26297] kobject_add+0x16f/0x240 [ 2247.471546][T26297] ? kset_create_and_add+0x190/0x190 [ 2247.476904][T26297] ? do_raw_spin_unlock+0x173/0x230 [ 2247.482167][T26297] ? kobject_put+0xbe/0x440 [ 2247.486751][T26297] device_add+0x289/0x1aa0 [ 2247.491224][T26297] ? device_initialize+0x510/0x510 [ 2247.496660][T26297] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2247.503574][T26297] ? __init_waitqueue_head+0xca/0x150 [ 2247.509056][T26297] netdev_register_kobject+0x183/0x3f0 [ 2247.514585][T26297] register_netdevice+0xbdf/0x14a0 [ 2247.519757][T26297] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2247.525791][T26297] ? validate_linkmsg+0x6fc/0x9c0 [ 2247.530888][T26297] br_dev_newlink+0x27/0x110 [ 2247.535611][T26297] ? br_changelink+0x1760/0x1760 [ 2247.540616][T26297] __rtnl_newlink+0x1173/0x1930 [ 2247.545530][T26297] ? rtnl_link_unregister+0x260/0x260 [ 2247.550981][T26297] rtnl_newlink+0x67/0xa0 [ 2247.555349][T26297] ? __rtnl_newlink+0x1930/0x1930 [ 2247.560413][T26297] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2247.565393][T26297] ? rtnl_getlink+0xb40/0xb40 [ 2247.570238][T26297] netlink_rcv_skb+0x16b/0x440 [ 2247.575047][T26297] ? rtnl_getlink+0xb40/0xb40 [ 2247.579761][T26297] ? netlink_ack+0x1370/0x1370 [ 2247.584591][T26297] ? netlink_deliver_tap+0x1a0/0xd00 [ 2247.589949][T26297] netlink_unicast+0x53b/0x810 [ 2247.594809][T26297] ? netlink_attachskb+0x880/0x880 [ 2247.599963][T26297] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2247.605926][T26297] ? __phys_addr_symbol+0x30/0x70 [ 2247.611002][T26297] ? __check_object_size+0x323/0x730 [ 2247.616347][T26297] netlink_sendmsg+0x93c/0xe40 [ 2247.621173][T26297] ? netlink_unicast+0x810/0x810 [ 2247.626174][T26297] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2247.631505][T26297] ? netlink_unicast+0x810/0x810 [ 2247.636491][T26297] __sock_sendmsg+0xd5/0x180 [ 2247.641120][T26297] ____sys_sendmsg+0x6ac/0x940 [ 2247.645925][T26297] ? copy_msghdr_from_user+0x10b/0x160 [ 2247.651436][T26297] ? kernel_sendmsg+0x50/0x50 [ 2247.656166][T26297] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2247.662220][T26297] ___sys_sendmsg+0x135/0x1d0 [ 2247.666963][T26297] ? do_recvmmsg+0x740/0x740 [ 2247.671604][T26297] ? find_held_lock+0x2d/0x110 [ 2247.676625][T26297] ? __fget_light+0xe6/0x260 [ 2247.681266][T26297] __sys_sendmsg+0x117/0x1e0 [ 2247.685903][T26297] ? __sys_sendmsg_sock+0x30/0x30 [ 2247.690970][T26297] ? xfd_validate_state+0x5d/0x180 [ 2247.696163][T26297] ? syscall_enter_from_user_mode+0x26/0x80 [ 2247.702115][T26297] do_syscall_64+0x3f/0x110 [ 2247.706674][T26297] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2247.712613][T26297] RIP: 0033:0x7f874a47cae9 [ 2247.717063][T26297] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2247.736718][T26297] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2247.745346][T26297] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2247.753351][T26297] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2247.761354][T26297] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2247.769355][T26297] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2247.777360][T26297] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2247.785388][T26297] 22:28:17 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x5dc, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:17 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0xe00, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:17 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x15}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2247.933976][T26297] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2247.996102][T26301] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. [ 2248.026788][T26307] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2248.088165][T26307] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2248.097694][T26307] CPU: 1 PID: 26307 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2248.107803][T26307] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2248.117888][T26307] Call Trace: [ 2248.121289][T26307] [ 2248.124242][T26307] dump_stack_lvl+0x125/0x1b0 [ 2248.128973][T26307] sysfs_warn_dup+0x7f/0xa0 [ 2248.133540][T26307] sysfs_create_dir_ns+0x247/0x2a0 [ 2248.138703][T26307] ? sysfs_create_mount_point+0xb0/0xb0 [ 2248.144309][T26307] ? spin_bug+0x1d0/0x1d0 [ 2248.148755][T26307] ? net_namespace+0x12/0x40 [ 2248.153428][T26307] ? device_namespace+0x8d/0xc0 [ 2248.158328][T26307] kobject_add_internal+0x2c8/0x960 [ 2248.163570][T26307] kobject_add+0x16f/0x240 [ 2248.168102][T26307] ? kset_create_and_add+0x190/0x190 [ 2248.173423][T26307] ? do_raw_spin_unlock+0x173/0x230 [ 2248.178679][T26307] ? kobject_put+0xbe/0x440 [ 2248.183403][T26307] device_add+0x289/0x1aa0 [ 2248.187852][T26307] ? device_initialize+0x510/0x510 [ 2248.193342][T26307] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2248.203056][T26307] ? __init_waitqueue_head+0xca/0x150 [ 2248.208540][T26307] netdev_register_kobject+0x183/0x3f0 [ 2248.214030][T26307] register_netdevice+0xbdf/0x14a0 [ 2248.219170][T26307] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2248.225133][T26307] veth_newlink+0x4ef/0xa00 [ 2248.229665][T26307] ? veth_set_features+0x2d0/0x2d0 [ 2248.234796][T26307] ? rtnl_create_link+0xc9c/0xfd0 [ 2248.239871][T26307] ? __rtnl_newlink+0x108a/0x1930 [ 2248.244908][T26307] ? rtnl_newlink+0x67/0xa0 [ 2248.249478][T26307] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2248.254793][T26307] ? alloc_netdev_mqs+0xee6/0x1290 [ 2248.259937][T26307] ? rtnl_create_link+0xa6d/0xfd0 [ 2248.264994][T26307] ? veth_set_features+0x2d0/0x2d0 [ 2248.270128][T26307] __rtnl_newlink+0x1173/0x1930 [ 2248.275096][T26307] ? rtnl_link_unregister+0x260/0x260 [ 2248.280544][T26307] rtnl_newlink+0x67/0xa0 [ 2248.284893][T26307] ? __rtnl_newlink+0x1930/0x1930 [ 2248.289931][T26307] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2248.294888][T26307] ? rtnl_getlink+0xb40/0xb40 [ 2248.299595][T26307] netlink_rcv_skb+0x16b/0x440 [ 2248.304380][T26307] ? rtnl_getlink+0xb40/0xb40 [ 2248.309163][T26307] ? netlink_ack+0x1370/0x1370 [ 2248.314052][T26307] ? netlink_deliver_tap+0x1a0/0xd00 [ 2248.319364][T26307] netlink_unicast+0x53b/0x810 [ 2248.324158][T26307] ? netlink_attachskb+0x880/0x880 [ 2248.329290][T26307] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2248.335203][T26307] ? __phys_addr_symbol+0x30/0x70 [ 2248.340333][T26307] ? __check_object_size+0x323/0x730 [ 2248.345737][T26307] netlink_sendmsg+0x93c/0xe40 [ 2248.350528][T26307] ? netlink_unicast+0x810/0x810 [ 2248.355493][T26307] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2248.360797][T26307] ? netlink_unicast+0x810/0x810 [ 2248.365756][T26307] __sock_sendmsg+0xd5/0x180 [ 2248.370362][T26307] ____sys_sendmsg+0x6ac/0x940 [ 2248.375142][T26307] ? copy_msghdr_from_user+0x10b/0x160 [ 2248.380622][T26307] ? kernel_sendmsg+0x50/0x50 [ 2248.385430][T26307] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2248.391529][T26307] ___sys_sendmsg+0x135/0x1d0 [ 2248.396401][T26307] ? do_recvmmsg+0x740/0x740 [ 2248.401501][T26307] ? find_held_lock+0x2d/0x110 [ 2248.406324][T26307] ? __fget_light+0xe6/0x260 [ 2248.410948][T26307] __sys_sendmsg+0x117/0x1e0 [ 2248.415559][T26307] ? __sys_sendmsg_sock+0x30/0x30 [ 2248.420610][T26307] ? xfd_validate_state+0x5d/0x180 [ 2248.425785][T26307] ? syscall_enter_from_user_mode+0x26/0x80 [ 2248.431706][T26307] do_syscall_64+0x3f/0x110 [ 2248.436234][T26307] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2248.442145][T26307] RIP: 0033:0x7f70d3c7cae9 [ 2248.446570][T26307] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2248.466193][T26307] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2248.474619][T26307] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2248.482749][T26307] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2248.490747][T26307] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2248.498738][T26307] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2248.506731][T26307] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2248.514839][T26307] [ 2248.527456][T26307] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:18 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000101ac00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:18 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x600, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:18 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0xf00, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2248.564192][T26309] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2248.584927][T26315] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2248.661733][T26329] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2248.684144][T26329] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2248.693694][T26329] CPU: 1 PID: 26329 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 22:28:18 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x300}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:18 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x16}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:18 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x5, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) 22:28:18 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x700, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) [ 2248.703801][T26329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2248.714233][T26329] Call Trace: [ 2248.717542][T26329] [ 2248.720501][T26329] dump_stack_lvl+0x125/0x1b0 [ 2248.725251][T26329] sysfs_warn_dup+0x7f/0xa0 [ 2248.729845][T26329] sysfs_create_dir_ns+0x247/0x2a0 [ 2248.735019][T26329] ? sysfs_create_mount_point+0xb0/0xb0 [ 2248.740619][T26329] ? spin_bug+0x1d0/0x1d0 [ 2248.745012][T26329] ? net_namespace+0x12/0x40 [ 2248.749732][T26329] ? device_namespace+0x8d/0xc0 [ 2248.754638][T26329] kobject_add_internal+0x2c8/0x960 [ 2248.759910][T26329] kobject_add+0x16f/0x240 [ 2248.764412][T26329] ? kset_create_and_add+0x190/0x190 [ 2248.769762][T26329] ? do_raw_spin_unlock+0x173/0x230 [ 2248.775024][T26329] ? kobject_put+0xbe/0x440 [ 2248.779603][T26329] device_add+0x289/0x1aa0 [ 2248.784091][T26329] ? device_initialize+0x510/0x510 [ 2248.789608][T26329] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2248.796516][T26329] ? __init_waitqueue_head+0xca/0x150 [ 2248.801953][T26329] netdev_register_kobject+0x183/0x3f0 [ 2248.807556][T26329] register_netdevice+0xbdf/0x14a0 [ 2248.812718][T26329] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2248.818671][T26329] ? validate_linkmsg+0x6fc/0x9c0 [ 2248.823771][T26329] br_dev_newlink+0x27/0x110 [ 2248.828509][T26329] ? br_changelink+0x1760/0x1760 [ 2248.833507][T26329] __rtnl_newlink+0x1173/0x1930 [ 2248.838460][T26329] ? rtnl_link_unregister+0x260/0x260 [ 2248.843918][T26329] rtnl_newlink+0x67/0xa0 [ 2248.848303][T26329] ? __rtnl_newlink+0x1930/0x1930 [ 2248.853379][T26329] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2248.858375][T26329] ? rtnl_getlink+0xb40/0xb40 [ 2248.863123][T26329] netlink_rcv_skb+0x16b/0x440 [ 2248.867942][T26329] ? rtnl_getlink+0xb40/0xb40 [ 2248.872670][T26329] ? netlink_ack+0x1370/0x1370 [ 2248.877501][T26329] ? netlink_deliver_tap+0x1a0/0xd00 [ 2248.882933][T26329] netlink_unicast+0x53b/0x810 [ 2248.887790][T26329] ? netlink_attachskb+0x880/0x880 [ 2248.893113][T26329] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2248.899060][T26329] ? __phys_addr_symbol+0x30/0x70 [ 2248.904307][T26329] ? __check_object_size+0x323/0x730 [ 2248.909660][T26329] netlink_sendmsg+0x93c/0xe40 [ 2248.914495][T26329] ? netlink_unicast+0x810/0x810 [ 2248.919495][T26329] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2248.924909][T26329] ? netlink_unicast+0x810/0x810 [ 2248.929974][T26329] __sock_sendmsg+0xd5/0x180 [ 2248.934606][T26329] ____sys_sendmsg+0x6ac/0x940 [ 2248.939435][T26329] ? copy_msghdr_from_user+0x10b/0x160 [ 2248.944942][T26329] ? kernel_sendmsg+0x50/0x50 [ 2248.949667][T26329] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2248.955893][T26329] ___sys_sendmsg+0x135/0x1d0 [ 2248.960629][T26329] ? do_recvmmsg+0x740/0x740 [ 2248.965277][T26329] ? find_held_lock+0x2d/0x110 [ 2248.970512][T26329] ? __fget_light+0xe6/0x260 [ 2248.975341][T26329] __sys_sendmsg+0x117/0x1e0 [ 2248.979998][T26329] ? __sys_sendmsg_sock+0x30/0x30 [ 2248.985704][T26329] ? xfd_validate_state+0x5d/0x180 [ 2248.990995][T26329] ? syscall_enter_from_user_mode+0x26/0x80 [ 2248.997041][T26329] do_syscall_64+0x3f/0x110 [ 2249.001684][T26329] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2249.007802][T26329] RIP: 0033:0x7f874a47cae9 [ 2249.012260][T26329] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2249.031912][T26329] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2249.040366][T26329] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2249.048373][T26329] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 22:28:19 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x1f00, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2249.056383][T26329] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2249.064408][T26329] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2249.072599][T26329] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2249.080643][T26329] 22:28:19 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x4002, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:19 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x900, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:19 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x17}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2249.133215][T26329] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:19 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x4100, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2249.283261][T26335] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2249.320812][T26335] CPU: 0 PID: 26335 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2249.330951][T26335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2249.341056][T26335] Call Trace: [ 2249.344369][T26335] [ 2249.347328][T26335] dump_stack_lvl+0x125/0x1b0 [ 2249.352068][T26335] sysfs_warn_dup+0x7f/0xa0 [ 2249.356645][T26335] sysfs_create_dir_ns+0x247/0x2a0 [ 2249.361821][T26335] ? sysfs_create_mount_point+0xb0/0xb0 [ 2249.367435][T26335] ? spin_bug+0x1d0/0x1d0 [ 2249.371820][T26335] ? net_namespace+0x12/0x40 [ 2249.376444][T26335] ? device_namespace+0x8d/0xc0 [ 2249.381364][T26335] kobject_add_internal+0x2c8/0x960 [ 2249.386626][T26335] kobject_add+0x16f/0x240 [ 2249.391117][T26335] ? kset_create_and_add+0x190/0x190 [ 2249.396546][T26335] ? do_raw_spin_unlock+0x173/0x230 [ 2249.406316][T26335] ? kobject_put+0xbe/0x440 [ 2249.410889][T26335] device_add+0x289/0x1aa0 [ 2249.415532][T26335] ? device_initialize+0x510/0x510 [ 2249.420697][T26335] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2249.427603][T26335] ? __init_waitqueue_head+0xca/0x150 [ 2249.433117][T26335] netdev_register_kobject+0x183/0x3f0 [ 2249.438629][T26335] register_netdevice+0xbdf/0x14a0 [ 2249.443783][T26335] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2249.449729][T26335] veth_newlink+0x4ef/0xa00 [ 2249.454280][T26335] ? veth_set_features+0x2d0/0x2d0 [ 2249.459429][T26335] ? rtnl_create_link+0xc9c/0xfd0 [ 2249.464498][T26335] ? __rtnl_newlink+0x108a/0x1930 [ 2249.469553][T26335] ? rtnl_newlink+0x67/0xa0 [ 2249.474145][T26335] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2249.479428][T26335] ? alloc_netdev_mqs+0xee6/0x1290 [ 2249.484603][T26335] ? rtnl_create_link+0xa6d/0xfd0 [ 2249.489704][T26335] ? veth_set_features+0x2d0/0x2d0 [ 2249.494856][T26335] __rtnl_newlink+0x1173/0x1930 [ 2249.499762][T26335] ? rtnl_link_unregister+0x260/0x260 [ 2249.505225][T26335] rtnl_newlink+0x67/0xa0 [ 2249.509619][T26335] ? __rtnl_newlink+0x1930/0x1930 [ 2249.514692][T26335] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2249.519677][T26335] ? rtnl_getlink+0xb40/0xb40 [ 2249.524423][T26335] netlink_rcv_skb+0x16b/0x440 [ 2249.529245][T26335] ? rtnl_getlink+0xb40/0xb40 [ 2249.533971][T26335] ? netlink_ack+0x1370/0x1370 [ 2249.538813][T26335] ? netlink_deliver_tap+0x1a0/0xd00 [ 2249.544253][T26335] netlink_unicast+0x53b/0x810 [ 2249.549066][T26335] ? netlink_attachskb+0x880/0x880 [ 2249.554265][T26335] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2249.560284][T26335] ? __phys_addr_symbol+0x30/0x70 [ 2249.565705][T26335] ? __check_object_size+0x323/0x730 [ 2249.571064][T26335] netlink_sendmsg+0x93c/0xe40 [ 2249.575888][T26335] ? netlink_unicast+0x810/0x810 [ 2249.580879][T26335] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2249.586214][T26335] ? netlink_unicast+0x810/0x810 [ 2249.591193][T26335] __sock_sendmsg+0xd5/0x180 [ 2249.595821][T26335] ____sys_sendmsg+0x6ac/0x940 [ 2249.600618][T26335] ? copy_msghdr_from_user+0x10b/0x160 [ 2249.606114][T26335] ? kernel_sendmsg+0x50/0x50 [ 2249.610832][T26335] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2249.616866][T26335] ___sys_sendmsg+0x135/0x1d0 [ 2249.621593][T26335] ? do_recvmmsg+0x740/0x740 [ 2249.626229][T26335] ? find_held_lock+0x2d/0x110 [ 2249.631071][T26335] ? __fget_light+0xe6/0x260 [ 2249.635711][T26335] __sys_sendmsg+0x117/0x1e0 [ 2249.640338][T26335] ? __sys_sendmsg_sock+0x30/0x30 [ 2249.645400][T26335] ? xfd_validate_state+0x5d/0x180 [ 2249.650687][T26335] ? syscall_enter_from_user_mode+0x26/0x80 [ 2249.656624][T26335] do_syscall_64+0x3f/0x110 [ 2249.661172][T26335] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2249.667280][T26335] RIP: 0033:0x7f70d3c7cae9 [ 2249.671721][T26335] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2249.692242][T26335] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2249.700703][T26335] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2249.708805][T26335] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2249.716820][T26335] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2249.724924][T26335] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2249.732933][T26335] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2249.740963][T26335] [ 2249.774219][T26335] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:19 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000102ac00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:19 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x18}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:19 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0xa00, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:19 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x500}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:19 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x4200, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:19 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x6, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) 22:28:19 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x211}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:19 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0xf00, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:20 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0xe803, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2250.034745][T26367] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2250.074657][T26367] CPU: 1 PID: 26367 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2250.084792][T26367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2250.094887][T26367] Call Trace: [ 2250.098201][T26367] [ 2250.101160][T26367] dump_stack_lvl+0x125/0x1b0 [ 2250.105890][T26367] sysfs_warn_dup+0x7f/0xa0 [ 2250.110459][T26367] sysfs_create_dir_ns+0x247/0x2a0 [ 2250.115634][T26367] ? sysfs_create_mount_point+0xb0/0xb0 [ 2250.121332][T26367] ? spin_bug+0x1d0/0x1d0 [ 2250.125807][T26367] ? net_namespace+0x12/0x40 [ 2250.130432][T26367] ? device_namespace+0x8d/0xc0 [ 2250.135340][T26367] kobject_add_internal+0x2c8/0x960 [ 2250.140597][T26367] kobject_add+0x16f/0x240 [ 2250.145038][T26367] ? kset_create_and_add+0x190/0x190 [ 2250.150352][T26367] ? do_raw_spin_unlock+0x173/0x230 [ 2250.155590][T26367] ? kobject_put+0xbe/0x440 [ 2250.160125][T26367] device_add+0x289/0x1aa0 [ 2250.164563][T26367] ? device_initialize+0x510/0x510 [ 2250.169713][T26367] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2250.176592][T26367] ? __init_waitqueue_head+0xca/0x150 [ 2250.182003][T26367] netdev_register_kobject+0x183/0x3f0 [ 2250.187497][T26367] register_netdevice+0xbdf/0x14a0 [ 2250.192629][T26367] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2250.198635][T26367] veth_newlink+0x4ef/0xa00 [ 2250.203248][T26367] ? veth_set_features+0x2d0/0x2d0 [ 2250.208378][T26367] ? rtnl_create_link+0xc9c/0xfd0 [ 2250.213521][T26367] ? __rtnl_newlink+0x108a/0x1930 [ 2250.218553][T26367] ? rtnl_newlink+0x67/0xa0 [ 2250.223120][T26367] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2250.228344][T26367] ? alloc_netdev_mqs+0xee6/0x1290 [ 2250.233492][T26367] ? rtnl_create_link+0xa6d/0xfd0 [ 2250.238638][T26367] ? veth_set_features+0x2d0/0x2d0 [ 2250.243772][T26367] __rtnl_newlink+0x1173/0x1930 [ 2250.248649][T26367] ? rtnl_link_unregister+0x260/0x260 [ 2250.254066][T26367] rtnl_newlink+0x67/0xa0 [ 2250.258411][T26367] ? __rtnl_newlink+0x1930/0x1930 [ 2250.263460][T26367] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2250.268426][T26367] ? rtnl_getlink+0xb40/0xb40 [ 2250.273142][T26367] netlink_rcv_skb+0x16b/0x440 [ 2250.277934][T26367] ? rtnl_getlink+0xb40/0xb40 [ 2250.282625][T26367] ? netlink_ack+0x1370/0x1370 [ 2250.287423][T26367] ? netlink_deliver_tap+0x1a0/0xd00 [ 2250.292733][T26367] netlink_unicast+0x53b/0x810 [ 2250.297520][T26367] ? netlink_attachskb+0x880/0x880 [ 2250.302656][T26367] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2250.308565][T26367] ? __phys_addr_symbol+0x30/0x70 [ 2250.313606][T26367] ? __check_object_size+0x323/0x730 [ 2250.318922][T26367] netlink_sendmsg+0x93c/0xe40 [ 2250.323804][T26367] ? netlink_unicast+0x810/0x810 [ 2250.328769][T26367] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2250.334077][T26367] ? netlink_unicast+0x810/0x810 [ 2250.339030][T26367] __sock_sendmsg+0xd5/0x180 [ 2250.343631][T26367] ____sys_sendmsg+0x6ac/0x940 [ 2250.348405][T26367] ? copy_msghdr_from_user+0x10b/0x160 [ 2250.353876][T26367] ? kernel_sendmsg+0x50/0x50 [ 2250.358577][T26367] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2250.364761][T26367] ___sys_sendmsg+0x135/0x1d0 [ 2250.369456][T26367] ? do_recvmmsg+0x740/0x740 [ 2250.374064][T26367] ? find_held_lock+0x2d/0x110 [ 2250.378875][T26367] ? __fget_light+0xe6/0x260 [ 2250.383493][T26367] __sys_sendmsg+0x117/0x1e0 [ 2250.388097][T26367] ? __sys_sendmsg_sock+0x30/0x30 [ 2250.393133][T26367] ? xfd_validate_state+0x5d/0x180 [ 2250.398345][T26367] ? syscall_enter_from_user_mode+0x26/0x80 [ 2250.404361][T26367] do_syscall_64+0x3f/0x110 [ 2250.408892][T26367] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2250.414797][T26367] RIP: 0033:0x7f70d3c7cae9 [ 2250.419216][T26367] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2250.438832][T26367] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2250.447262][T26367] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2250.455241][T26367] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2250.463216][T26367] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2250.471195][T26367] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2250.479206][T26367] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2250.487221][T26367] 22:28:20 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x1f00, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:20 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x212}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:20 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0xf401, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2250.535425][T26367] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2250.742413][T26364] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2250.752291][T26364] CPU: 0 PID: 26364 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2250.762407][T26364] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2250.772579][T26364] Call Trace: [ 2250.775880][T26364] [ 2250.778828][T26364] dump_stack_lvl+0x125/0x1b0 [ 2250.784074][T26364] sysfs_warn_dup+0x7f/0xa0 [ 2250.788613][T26364] sysfs_create_dir_ns+0x247/0x2a0 [ 2250.793758][T26364] ? sysfs_create_mount_point+0xb0/0xb0 [ 2250.799330][T26364] ? spin_bug+0x1d0/0x1d0 [ 2250.803688][T26364] ? net_namespace+0x12/0x40 [ 2250.808295][T26364] ? device_namespace+0x8d/0xc0 [ 2250.813266][T26364] kobject_add_internal+0x2c8/0x960 [ 2250.818496][T26364] kobject_add+0x16f/0x240 [ 2250.823025][T26364] ? kset_create_and_add+0x190/0x190 [ 2250.828353][T26364] ? do_raw_spin_unlock+0x173/0x230 [ 2250.833609][T26364] ? kobject_put+0xbe/0x440 [ 2250.838152][T26364] device_add+0x289/0x1aa0 [ 2250.842586][T26364] ? device_initialize+0x510/0x510 [ 2250.847741][T26364] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2250.854630][T26364] ? __init_waitqueue_head+0xca/0x150 [ 2250.860038][T26364] netdev_register_kobject+0x183/0x3f0 [ 2250.865531][T26364] register_netdevice+0xbdf/0x14a0 [ 2250.870674][T26364] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2250.876598][T26364] ? validate_linkmsg+0x6fc/0x9c0 [ 2250.881663][T26364] br_dev_newlink+0x27/0x110 [ 2250.886645][T26364] ? br_changelink+0x1760/0x1760 [ 2250.891616][T26364] __rtnl_newlink+0x1173/0x1930 [ 2250.896504][T26364] ? rtnl_link_unregister+0x260/0x260 [ 2250.901929][T26364] rtnl_newlink+0x67/0xa0 [ 2250.906272][T26364] ? __rtnl_newlink+0x1930/0x1930 [ 2250.911309][T26364] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2250.916268][T26364] ? rtnl_getlink+0xb40/0xb40 [ 2250.920974][T26364] netlink_rcv_skb+0x16b/0x440 [ 2250.925756][T26364] ? rtnl_getlink+0xb40/0xb40 [ 2250.930457][T26364] ? netlink_ack+0x1370/0x1370 [ 2250.935254][T26364] ? netlink_deliver_tap+0x1a0/0xd00 [ 2250.940586][T26364] netlink_unicast+0x53b/0x810 [ 2250.945476][T26364] ? netlink_attachskb+0x880/0x880 [ 2250.950618][T26364] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2250.956629][T26364] ? __phys_addr_symbol+0x30/0x70 [ 2250.961678][T26364] ? __check_object_size+0x323/0x730 [ 2250.966995][T26364] netlink_sendmsg+0x93c/0xe40 [ 2250.971791][T26364] ? netlink_unicast+0x810/0x810 [ 2250.976754][T26364] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2250.982231][T26364] ? netlink_unicast+0x810/0x810 [ 2250.987198][T26364] __sock_sendmsg+0xd5/0x180 [ 2250.991803][T26364] ____sys_sendmsg+0x6ac/0x940 [ 2250.996701][T26364] ? copy_msghdr_from_user+0x10b/0x160 [ 2251.002179][T26364] ? kernel_sendmsg+0x50/0x50 [ 2251.006874][T26364] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2251.012890][T26364] ___sys_sendmsg+0x135/0x1d0 [ 2251.017586][T26364] ? do_recvmmsg+0x740/0x740 [ 2251.022191][T26364] ? find_held_lock+0x2d/0x110 [ 2251.027101][T26364] ? __fget_light+0xe6/0x260 [ 2251.031891][T26364] __sys_sendmsg+0x117/0x1e0 [ 2251.036501][T26364] ? __sys_sendmsg_sock+0x30/0x30 [ 2251.041538][T26364] ? xfd_validate_state+0x5d/0x180 [ 2251.046694][T26364] ? syscall_enter_from_user_mode+0x26/0x80 [ 2251.052610][T26364] do_syscall_64+0x3f/0x110 [ 2251.057236][T26364] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2251.063323][T26364] RIP: 0033:0x7f874a47cae9 [ 2251.067750][T26364] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2251.090704][T26364] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2251.099139][T26364] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2251.107135][T26364] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2251.115138][T26364] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2251.123133][T26364] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2251.131116][T26364] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2251.139130][T26364] [ 2251.169029][T26364] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:21 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000103ac00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:21 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x300}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:21 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x1313a, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:21 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x2c01, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:21 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x7, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) 22:28:21 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x600}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:21 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x20086, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:21 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x35c}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:21 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x3f00, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:21 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x8, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) [ 2251.489295][T26399] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2251.503755][T26399] CPU: 0 PID: 26399 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2251.513888][T26399] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2251.523984][T26399] Call Trace: [ 2251.527313][T26399] [ 2251.530273][T26399] dump_stack_lvl+0x125/0x1b0 [ 2251.535017][T26399] sysfs_warn_dup+0x7f/0xa0 22:28:21 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x411}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2251.539672][T26399] sysfs_create_dir_ns+0x247/0x2a0 [ 2251.544947][T26399] ? sysfs_create_mount_point+0xb0/0xb0 [ 2251.550568][T26399] ? spin_bug+0x1d0/0x1d0 [ 2251.554967][T26399] ? net_namespace+0x12/0x40 [ 2251.559604][T26399] ? device_namespace+0x8d/0xc0 [ 2251.564514][T26399] kobject_add_internal+0x2c8/0x960 [ 2251.569791][T26399] kobject_add+0x16f/0x240 [ 2251.574381][T26399] ? kset_create_and_add+0x190/0x190 [ 2251.580077][T26399] ? do_raw_spin_unlock+0x173/0x230 [ 2251.585346][T26399] ? kobject_put+0xbe/0x440 [ 2251.589926][T26399] device_add+0x289/0x1aa0 [ 2251.594505][T26399] ? device_initialize+0x510/0x510 [ 2251.599772][T26399] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2251.606704][T26399] ? __init_waitqueue_head+0xca/0x150 [ 2251.612317][T26399] netdev_register_kobject+0x183/0x3f0 [ 2251.617842][T26399] register_netdevice+0xbdf/0x14a0 [ 2251.623023][T26399] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2251.629068][T26399] veth_newlink+0x4ef/0xa00 [ 2251.633633][T26399] ? veth_set_features+0x2d0/0x2d0 22:28:21 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x2000}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2251.638809][T26399] ? rtnl_create_link+0xc9c/0xfd0 [ 2251.643950][T26399] ? __rtnl_newlink+0x108a/0x1930 [ 2251.649119][T26399] ? rtnl_newlink+0x67/0xa0 [ 2251.653747][T26399] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2251.659009][T26399] ? alloc_netdev_mqs+0xee6/0x1290 [ 2251.664277][T26399] ? rtnl_create_link+0xa6d/0xfd0 [ 2251.669369][T26399] ? veth_set_features+0x2d0/0x2d0 [ 2251.674562][T26399] __rtnl_newlink+0x1173/0x1930 [ 2251.679488][T26399] ? rtnl_link_unregister+0x260/0x260 [ 2251.684947][T26399] rtnl_newlink+0x67/0xa0 [ 2251.691253][T26399] ? __rtnl_newlink+0x1930/0x1930 [ 2251.696424][T26399] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2251.701513][T26399] ? rtnl_getlink+0xb40/0xb40 [ 2251.706267][T26399] netlink_rcv_skb+0x16b/0x440 [ 2251.711088][T26399] ? rtnl_getlink+0xb40/0xb40 [ 2251.715815][T26399] ? netlink_ack+0x1370/0x1370 [ 2251.720648][T26399] ? netlink_deliver_tap+0x1a0/0xd00 [ 2251.726000][T26399] netlink_unicast+0x53b/0x810 [ 2251.730817][T26399] ? netlink_attachskb+0x880/0x880 [ 2251.736062][T26399] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2251.742525][T26399] ? __phys_addr_symbol+0x30/0x70 [ 2251.747600][T26399] ? __check_object_size+0x323/0x730 [ 2251.752949][T26399] netlink_sendmsg+0x93c/0xe40 [ 2251.757770][T26399] ? netlink_unicast+0x810/0x810 [ 2251.762765][T26399] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2251.768094][T26399] ? netlink_unicast+0x810/0x810 [ 2251.773083][T26399] __sock_sendmsg+0xd5/0x180 [ 2251.777729][T26399] ____sys_sendmsg+0x6ac/0x940 [ 2251.782542][T26399] ? copy_msghdr_from_user+0x10b/0x160 [ 2251.788053][T26399] ? kernel_sendmsg+0x50/0x50 [ 2251.792788][T26399] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2251.798830][T26399] ___sys_sendmsg+0x135/0x1d0 [ 2251.803563][T26399] ? do_recvmmsg+0x740/0x740 [ 2251.808206][T26399] ? find_held_lock+0x2d/0x110 [ 2251.813046][T26399] ? __fget_light+0xe6/0x260 [ 2251.817805][T26399] __sys_sendmsg+0x117/0x1e0 [ 2251.822439][T26399] ? __sys_sendmsg_sock+0x30/0x30 [ 2251.827519][T26399] ? xfd_validate_state+0x5d/0x180 [ 2251.832720][T26399] ? syscall_enter_from_user_mode+0x26/0x80 [ 2251.838665][T26399] do_syscall_64+0x3f/0x110 [ 2251.843220][T26399] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2251.849151][T26399] RIP: 0033:0x7f70d3c7cae9 [ 2251.853598][T26399] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2251.873420][T26399] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2251.881884][T26399] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2251.890242][T26399] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2251.898274][T26399] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2251.906281][T26399] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2251.914283][T26399] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2251.922324][T26399] [ 2251.986644][T26399] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2252.021895][T26401] __nla_validate_parse: 10 callbacks suppressed [ 2252.021916][T26401] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2252.057254][T26400] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2252.073006][T26400] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2252.082734][T26400] CPU: 0 PID: 26400 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2252.093281][T26400] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2252.103368][T26400] Call Trace: [ 2252.106682][T26400] [ 2252.109654][T26400] dump_stack_lvl+0x125/0x1b0 [ 2252.114489][T26400] sysfs_warn_dup+0x7f/0xa0 [ 2252.119231][T26400] sysfs_create_dir_ns+0x247/0x2a0 [ 2252.124416][T26400] ? sysfs_create_mount_point+0xb0/0xb0 [ 2252.130106][T26400] ? spin_bug+0x1d0/0x1d0 [ 2252.134489][T26400] ? net_namespace+0x12/0x40 [ 2252.139391][T26400] ? device_namespace+0x8d/0xc0 [ 2252.144308][T26400] kobject_add_internal+0x2c8/0x960 [ 2252.149574][T26400] kobject_add+0x16f/0x240 [ 2252.154064][T26400] ? kset_create_and_add+0x190/0x190 [ 2252.159426][T26400] ? kobject_put+0xbe/0x440 [ 2252.163996][T26400] device_add+0x289/0x1aa0 [ 2252.168455][T26400] ? device_initialize+0x510/0x510 [ 2252.173625][T26400] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2252.180528][T26400] ? __init_waitqueue_head+0xca/0x150 [ 2252.185959][T26400] netdev_register_kobject+0x183/0x3f0 [ 2252.191556][T26400] register_netdevice+0xbdf/0x14a0 [ 2252.196738][T26400] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2252.202773][T26400] ? validate_linkmsg+0x6fc/0x9c0 [ 2252.207862][T26400] br_dev_newlink+0x27/0x110 [ 2252.212597][T26400] ? br_changelink+0x1760/0x1760 [ 2252.217595][T26400] __rtnl_newlink+0x1173/0x1930 [ 2252.222599][T26400] ? rtnl_link_unregister+0x260/0x260 [ 2252.228061][T26400] rtnl_newlink+0x67/0xa0 [ 2252.232436][T26400] ? __rtnl_newlink+0x1930/0x1930 [ 2252.237500][T26400] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2252.242488][T26400] ? rtnl_getlink+0xb40/0xb40 [ 2252.247237][T26400] netlink_rcv_skb+0x16b/0x440 [ 2252.252334][T26400] ? rtnl_getlink+0xb40/0xb40 [ 2252.257051][T26400] ? netlink_ack+0x1370/0x1370 [ 2252.261884][T26400] ? netlink_deliver_tap+0x1a0/0xd00 [ 2252.267236][T26400] netlink_unicast+0x53b/0x810 [ 2252.272060][T26400] ? netlink_attachskb+0x880/0x880 [ 2252.277228][T26400] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2252.283174][T26400] ? __phys_addr_symbol+0x30/0x70 [ 2252.288256][T26400] ? __check_object_size+0x323/0x730 [ 2252.293608][T26400] netlink_sendmsg+0x93c/0xe40 [ 2252.298430][T26400] ? netlink_unicast+0x810/0x810 [ 2252.303427][T26400] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2252.308931][T26400] ? netlink_unicast+0x810/0x810 [ 2252.313924][T26400] __sock_sendmsg+0xd5/0x180 [ 2252.318561][T26400] ____sys_sendmsg+0x6ac/0x940 [ 2252.323367][T26400] ? copy_msghdr_from_user+0x10b/0x160 [ 2252.328876][T26400] ? kernel_sendmsg+0x50/0x50 [ 2252.333606][T26400] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2252.339644][T26400] ___sys_sendmsg+0x135/0x1d0 [ 2252.344368][T26400] ? do_recvmmsg+0x740/0x740 [ 2252.348997][T26400] ? find_held_lock+0x2d/0x110 [ 2252.353840][T26400] ? __fget_light+0xe6/0x260 [ 2252.358478][T26400] __sys_sendmsg+0x117/0x1e0 [ 2252.363105][T26400] ? __sys_sendmsg_sock+0x30/0x30 [ 2252.368164][T26400] ? xfd_validate_state+0x5d/0x180 [ 2252.373348][T26400] ? syscall_enter_from_user_mode+0x26/0x80 [ 2252.379289][T26400] do_syscall_64+0x3f/0x110 [ 2252.383846][T26400] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2252.389779][T26400] RIP: 0033:0x7f874a47cae9 [ 2252.394228][T26400] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2252.413871][T26400] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2252.422328][T26400] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 [ 2252.430334][T26400] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2252.438344][T26400] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2252.446348][T26400] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2252.454433][T26400] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2252.462546][T26400] [ 2252.482069][T26400] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2252.605182][T26408] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. [ 2252.631255][T26422] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:28:22 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000100ad00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:22 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x6700}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:22 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x80fe, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:22 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x40000, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:22 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x9, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) 22:28:22 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x700}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:22 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x6800}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2252.732324][T26426] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. 22:28:22 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0xc0fe, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:22 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x142800, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:22 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0xa, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) [ 2252.841739][T26433] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. 22:28:23 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x6900}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2252.932447][T26433] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' 22:28:23 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x242800, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2252.995324][T26433] CPU: 0 PID: 26433 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2253.005463][T26433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2253.015565][T26433] Call Trace: [ 2253.018881][T26433] [ 2253.021847][T26433] dump_stack_lvl+0x125/0x1b0 [ 2253.026580][T26433] sysfs_warn_dup+0x7f/0xa0 [ 2253.031139][T26433] sysfs_create_dir_ns+0x247/0x2a0 [ 2253.036289][T26433] ? sysfs_create_mount_point+0xb0/0xb0 [ 2253.041872][T26433] ? spin_bug+0x1d0/0x1d0 [ 2253.046238][T26433] ? net_namespace+0x12/0x40 [ 2253.050840][T26433] ? device_namespace+0x8d/0xc0 [ 2253.055720][T26433] kobject_add_internal+0x2c8/0x960 [ 2253.060953][T26433] kobject_add+0x16f/0x240 [ 2253.065401][T26433] ? kset_create_and_add+0x190/0x190 [ 2253.070724][T26433] ? do_raw_spin_unlock+0x173/0x230 [ 2253.075953][T26433] ? kobject_put+0xbe/0x440 [ 2253.080491][T26433] device_add+0x289/0x1aa0 [ 2253.084940][T26433] ? device_initialize+0x510/0x510 [ 2253.090082][T26433] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2253.096959][T26433] ? __init_waitqueue_head+0xca/0x150 [ 2253.102360][T26433] netdev_register_kobject+0x183/0x3f0 [ 2253.107847][T26433] register_netdevice+0xbdf/0x14a0 [ 2253.113001][T26433] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2253.118953][T26433] veth_newlink+0x4ef/0xa00 [ 2253.123492][T26433] ? veth_set_features+0x2d0/0x2d0 [ 2253.128624][T26433] ? rtnl_create_link+0xc9c/0xfd0 [ 2253.133944][T26433] ? __rtnl_newlink+0x108a/0x1930 [ 2253.139075][T26433] ? rtnl_newlink+0x67/0xa0 [ 2253.143653][T26433] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2253.148885][T26433] ? alloc_netdev_mqs+0xee6/0x1290 [ 2253.154135][T26433] ? rtnl_create_link+0xa6d/0xfd0 [ 2253.159192][T26433] ? veth_set_features+0x2d0/0x2d0 [ 2253.164326][T26433] __rtnl_newlink+0x1173/0x1930 [ 2253.169554][T26433] ? rtnl_link_unregister+0x260/0x260 [ 2253.175071][T26433] rtnl_newlink+0x67/0xa0 [ 2253.179418][T26433] ? __rtnl_newlink+0x1930/0x1930 [ 2253.184475][T26433] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2253.189432][T26433] ? rtnl_getlink+0xb40/0xb40 [ 2253.194748][T26433] netlink_rcv_skb+0x16b/0x440 [ 2253.199535][T26433] ? rtnl_getlink+0xb40/0xb40 [ 2253.204316][T26433] ? netlink_ack+0x1370/0x1370 [ 2253.209119][T26433] ? netlink_deliver_tap+0x1a0/0xd00 [ 2253.214435][T26433] netlink_unicast+0x53b/0x810 [ 2253.219225][T26433] ? netlink_attachskb+0x880/0x880 [ 2253.225047][T26433] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2253.230960][T26433] ? __phys_addr_symbol+0x30/0x70 [ 2253.236176][T26433] ? __check_object_size+0x323/0x730 [ 2253.241495][T26433] netlink_sendmsg+0x93c/0xe40 [ 2253.246305][T26433] ? netlink_unicast+0x810/0x810 [ 2253.251275][T26433] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2253.256604][T26433] ? netlink_unicast+0x810/0x810 [ 2253.261562][T26433] __sock_sendmsg+0xd5/0x180 [ 2253.266267][T26433] ____sys_sendmsg+0x6ac/0x940 [ 2253.271072][T26433] ? copy_msghdr_from_user+0x10b/0x160 [ 2253.276548][T26433] ? kernel_sendmsg+0x50/0x50 [ 2253.281605][T26433] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2253.287711][T26433] ___sys_sendmsg+0x135/0x1d0 [ 2253.292407][T26433] ? do_recvmmsg+0x740/0x740 [ 2253.297017][T26433] ? find_held_lock+0x2d/0x110 [ 2253.301832][T26433] ? __fget_light+0xe6/0x260 [ 2253.306450][T26433] __sys_sendmsg+0x117/0x1e0 [ 2253.311059][T26433] ? __sys_sendmsg_sock+0x30/0x30 [ 2253.316115][T26433] ? xfd_validate_state+0x5d/0x180 [ 2253.321276][T26433] ? syscall_enter_from_user_mode+0x26/0x80 [ 2253.327194][T26433] do_syscall_64+0x3f/0x110 [ 2253.331813][T26433] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2253.337899][T26433] RIP: 0033:0x7f70d3c7cae9 [ 2253.342336][T26433] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2253.361974][T26433] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2253.370400][T26433] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2253.378380][T26433] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2253.386452][T26433] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2253.394870][T26433] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2253.403087][T26433] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2253.411091][T26433] [ 2253.447528][T26433] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2253.545401][T26435] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2253.560999][T26436] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2253.578139][T26436] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2253.604168][T26436] CPU: 0 PID: 26436 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2253.614389][T26436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2253.624486][T26436] Call Trace: [ 2253.627790][T26436] [ 2253.630745][T26436] dump_stack_lvl+0x125/0x1b0 [ 2253.635476][T26436] sysfs_warn_dup+0x7f/0xa0 [ 2253.640042][T26436] sysfs_create_dir_ns+0x247/0x2a0 [ 2253.645215][T26436] ? sysfs_create_mount_point+0xb0/0xb0 [ 2253.650821][T26436] ? spin_bug+0x1d0/0x1d0 [ 2253.655205][T26436] ? net_namespace+0x12/0x40 [ 2253.659833][T26436] ? device_namespace+0x8d/0xc0 [ 2253.664747][T26436] kobject_add_internal+0x2c8/0x960 [ 2253.670100][T26436] kobject_add+0x16f/0x240 [ 2253.674589][T26436] ? kset_create_and_add+0x190/0x190 [ 2253.680000][T26436] ? do_raw_spin_unlock+0x173/0x230 [ 2253.688493][T26436] ? kobject_put+0xbe/0x440 [ 2253.693061][T26436] device_add+0x289/0x1aa0 [ 2253.697524][T26436] ? device_initialize+0x510/0x510 [ 2253.702701][T26436] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2253.709608][T26436] ? __init_waitqueue_head+0xca/0x150 [ 2253.715039][T26436] netdev_register_kobject+0x183/0x3f0 [ 2253.720635][T26436] register_netdevice+0xbdf/0x14a0 [ 2253.725975][T26436] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2253.731916][T26436] ? validate_linkmsg+0x6fc/0x9c0 [ 2253.737016][T26436] br_dev_newlink+0x27/0x110 [ 2253.741661][T26436] ? br_changelink+0x1760/0x1760 [ 2253.746650][T26436] __rtnl_newlink+0x1173/0x1930 [ 2253.751567][T26436] ? rtnl_link_unregister+0x260/0x260 [ 2253.757054][T26436] rtnl_newlink+0x67/0xa0 [ 2253.761428][T26436] ? __rtnl_newlink+0x1930/0x1930 [ 2253.766507][T26436] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2253.771511][T26436] ? rtnl_getlink+0xb40/0xb40 [ 2253.776252][T26436] netlink_rcv_skb+0x16b/0x440 [ 2253.781252][T26436] ? rtnl_getlink+0xb40/0xb40 [ 2253.785966][T26436] ? netlink_ack+0x1370/0x1370 [ 2253.790793][T26436] ? netlink_deliver_tap+0x1a0/0xd00 [ 2253.796127][T26436] netlink_unicast+0x53b/0x810 [ 2253.800940][T26436] ? netlink_attachskb+0x880/0x880 [ 2253.806090][T26436] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2253.812038][T26436] ? __phys_addr_symbol+0x30/0x70 [ 2253.817107][T26436] ? __check_object_size+0x323/0x730 [ 2253.822454][T26436] netlink_sendmsg+0x93c/0xe40 [ 2253.827277][T26436] ? netlink_unicast+0x810/0x810 [ 2253.832266][T26436] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2253.837594][T26436] ? netlink_unicast+0x810/0x810 [ 2253.842578][T26436] __sock_sendmsg+0xd5/0x180 [ 2253.847208][T26436] ____sys_sendmsg+0x6ac/0x940 [ 2253.852012][T26436] ? copy_msghdr_from_user+0x10b/0x160 [ 2253.857516][T26436] ? kernel_sendmsg+0x50/0x50 [ 2253.862329][T26436] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2253.868371][T26436] ___sys_sendmsg+0x135/0x1d0 [ 2253.873096][T26436] ? do_recvmmsg+0x740/0x740 [ 2253.877728][T26436] ? find_held_lock+0x2d/0x110 [ 2253.882662][T26436] ? __fget_light+0xe6/0x260 [ 2253.887319][T26436] __sys_sendmsg+0x117/0x1e0 [ 2253.891954][T26436] ? __sys_sendmsg_sock+0x30/0x30 [ 2253.897027][T26436] ? xfd_validate_state+0x5d/0x180 [ 2253.902218][T26436] ? syscall_enter_from_user_mode+0x26/0x80 [ 2253.908179][T26436] do_syscall_64+0x3f/0x110 [ 2253.912905][T26436] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2253.918833][T26436] RIP: 0033:0x7f874a47cae9 [ 2253.923280][T26436] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2253.943204][T26436] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2253.951929][T26436] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2253.959955][T26436] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2253.967959][T26436] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2253.975972][T26436] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2253.984059][T26436] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2253.992090][T26436] [ 2254.013746][T26436] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2254.076072][T26446] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2254.093123][T26451] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. 22:28:24 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0xdc05, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:24 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x6a00}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:24 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x281400, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:24 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000101ad00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:24 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0x900}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:24 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0xc, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) 22:28:24 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0xfc00, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:24 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x6b00}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:24 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x282400, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2254.293497][T26461] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2254.325191][T26461] CPU: 1 PID: 26461 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2254.335332][T26461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2254.345493][T26461] Call Trace: [ 2254.348786][T26461] [ 2254.351731][T26461] dump_stack_lvl+0x125/0x1b0 [ 2254.356440][T26461] sysfs_warn_dup+0x7f/0xa0 [ 2254.360975][T26461] sysfs_create_dir_ns+0x247/0x2a0 [ 2254.366120][T26461] ? sysfs_create_mount_point+0xb0/0xb0 [ 2254.371803][T26461] ? spin_bug+0x1d0/0x1d0 [ 2254.376178][T26461] ? net_namespace+0x12/0x40 [ 2254.380890][T26461] ? device_namespace+0x8d/0xc0 [ 2254.385774][T26461] kobject_add_internal+0x2c8/0x960 [ 2254.391094][T26461] kobject_add+0x16f/0x240 [ 2254.395628][T26461] ? kset_create_and_add+0x190/0x190 [ 2254.401204][T26461] ? do_raw_spin_unlock+0x173/0x230 [ 2254.406558][T26461] ? kobject_put+0xbe/0x440 [ 2254.411194][T26461] device_add+0x289/0x1aa0 [ 2254.415631][T26461] ? device_initialize+0x510/0x510 [ 2254.420772][T26461] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2254.427646][T26461] ? __init_waitqueue_head+0xca/0x150 [ 2254.433051][T26461] netdev_register_kobject+0x183/0x3f0 [ 2254.438548][T26461] register_netdevice+0xbdf/0x14a0 [ 2254.443691][T26461] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2254.449611][T26461] veth_newlink+0x4ef/0xa00 [ 2254.454138][T26461] ? veth_set_features+0x2d0/0x2d0 [ 2254.459268][T26461] ? rtnl_create_link+0xc9c/0xfd0 [ 2254.464335][T26461] ? __rtnl_newlink+0x108a/0x1930 [ 2254.469459][T26461] ? rtnl_newlink+0x67/0xa0 [ 2254.474037][T26461] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2254.479265][T26461] ? alloc_netdev_mqs+0xee6/0x1290 [ 2254.484410][T26461] ? rtnl_create_link+0xa6d/0xfd0 [ 2254.489467][T26461] ? veth_set_features+0x2d0/0x2d0 [ 2254.494603][T26461] __rtnl_newlink+0x1173/0x1930 [ 2254.499482][T26461] ? rtnl_link_unregister+0x260/0x260 [ 2254.504914][T26461] rtnl_newlink+0x67/0xa0 [ 2254.509265][T26461] ? __rtnl_newlink+0x1930/0x1930 [ 2254.514303][T26461] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2254.519259][T26461] ? rtnl_getlink+0xb40/0xb40 [ 2254.523968][T26461] netlink_rcv_skb+0x16b/0x440 [ 2254.528753][T26461] ? rtnl_getlink+0xb40/0xb40 [ 2254.533543][T26461] ? netlink_ack+0x1370/0x1370 [ 2254.538361][T26461] ? netlink_deliver_tap+0x1a0/0xd00 [ 2254.543677][T26461] netlink_unicast+0x53b/0x810 [ 2254.548471][T26461] ? netlink_attachskb+0x880/0x880 [ 2254.553602][T26461] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2254.559526][T26461] ? __phys_addr_symbol+0x30/0x70 [ 2254.564574][T26461] ? __check_object_size+0x323/0x730 [ 2254.569910][T26461] netlink_sendmsg+0x93c/0xe40 [ 2254.574721][T26461] ? netlink_unicast+0x810/0x810 [ 2254.579773][T26461] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2254.585236][T26461] ? netlink_unicast+0x810/0x810 [ 2254.590207][T26461] __sock_sendmsg+0xd5/0x180 [ 2254.594815][T26461] ____sys_sendmsg+0x6ac/0x940 [ 2254.599593][T26461] ? copy_msghdr_from_user+0x10b/0x160 [ 2254.605070][T26461] ? kernel_sendmsg+0x50/0x50 [ 2254.609780][T26461] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2254.615805][T26461] ___sys_sendmsg+0x135/0x1d0 [ 2254.620509][T26461] ? do_recvmmsg+0x740/0x740 [ 2254.625130][T26461] ? find_held_lock+0x2d/0x110 [ 2254.629946][T26461] ? __fget_light+0xe6/0x260 [ 2254.634565][T26461] __sys_sendmsg+0x117/0x1e0 [ 2254.639176][T26461] ? __sys_sendmsg_sock+0x30/0x30 [ 2254.644213][T26461] ? xfd_validate_state+0x5d/0x180 [ 2254.649369][T26461] ? syscall_enter_from_user_mode+0x26/0x80 [ 2254.655458][T26461] do_syscall_64+0x3f/0x110 [ 2254.659992][T26461] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2254.666044][T26461] RIP: 0033:0x7f70d3c7cae9 [ 2254.670477][T26461] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2254.690718][T26461] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2254.699323][T26461] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2254.707305][T26461] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2254.715298][T26461] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2254.723295][T26461] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2254.731285][T26461] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2254.739406][T26461] [ 2254.783440][T26461] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:24 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x6c00}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:24 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x410000, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:24 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0xfe80, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) [ 2254.955059][T26470] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2254.970545][T26470] CPU: 1 PID: 26470 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2254.981736][T26470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2254.992720][T26470] Call Trace: [ 2254.996051][T26470] [ 2254.999017][T26470] dump_stack_lvl+0x125/0x1b0 [ 2255.003759][T26470] sysfs_warn_dup+0x7f/0xa0 [ 2255.008333][T26470] sysfs_create_dir_ns+0x247/0x2a0 [ 2255.013511][T26470] ? sysfs_create_mount_point+0xb0/0xb0 [ 2255.019140][T26470] ? spin_bug+0x1d0/0x1d0 [ 2255.023534][T26470] ? net_namespace+0x12/0x40 [ 2255.028155][T26470] ? device_namespace+0x8d/0xc0 [ 2255.033102][T26470] kobject_add_internal+0x2c8/0x960 [ 2255.038365][T26470] kobject_add+0x16f/0x240 [ 2255.042932][T26470] ? kset_create_and_add+0x190/0x190 [ 2255.048276][T26470] ? do_raw_spin_unlock+0x173/0x230 [ 2255.053532][T26470] ? kobject_put+0xbe/0x440 [ 2255.058109][T26470] device_add+0x289/0x1aa0 [ 2255.062559][T26470] ? device_initialize+0x510/0x510 [ 2255.067728][T26470] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2255.075151][T26470] ? __init_waitqueue_head+0xca/0x150 [ 2255.081088][T26470] netdev_register_kobject+0x183/0x3f0 [ 2255.086767][T26470] register_netdevice+0xbdf/0x14a0 [ 2255.091912][T26470] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2255.097827][T26470] ? validate_linkmsg+0x6fc/0x9c0 [ 2255.102893][T26470] br_dev_newlink+0x27/0x110 [ 2255.107517][T26470] ? br_changelink+0x1760/0x1760 [ 2255.112488][T26470] __rtnl_newlink+0x1173/0x1930 [ 2255.117633][T26470] ? rtnl_link_unregister+0x260/0x260 [ 2255.123060][T26470] rtnl_newlink+0x67/0xa0 [ 2255.127434][T26470] ? __rtnl_newlink+0x1930/0x1930 [ 2255.132684][T26470] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2255.137923][T26470] ? rtnl_getlink+0xb40/0xb40 [ 2255.142656][T26470] netlink_rcv_skb+0x16b/0x440 [ 2255.147550][T26470] ? rtnl_getlink+0xb40/0xb40 [ 2255.152260][T26470] ? netlink_ack+0x1370/0x1370 [ 2255.157063][T26470] ? netlink_deliver_tap+0x1a0/0xd00 [ 2255.162374][T26470] netlink_unicast+0x53b/0x810 [ 2255.167166][T26470] ? netlink_attachskb+0x880/0x880 [ 2255.172388][T26470] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2255.178507][T26470] ? __phys_addr_symbol+0x30/0x70 [ 2255.183673][T26470] ? __check_object_size+0x323/0x730 [ 2255.189004][T26470] netlink_sendmsg+0x93c/0xe40 [ 2255.193819][T26470] ? netlink_unicast+0x810/0x810 [ 2255.198875][T26470] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2255.204177][T26470] ? netlink_unicast+0x810/0x810 [ 2255.209353][T26470] __sock_sendmsg+0xd5/0x180 [ 2255.214163][T26470] ____sys_sendmsg+0x6ac/0x940 [ 2255.218955][T26470] ? copy_msghdr_from_user+0x10b/0x160 [ 2255.224446][T26470] ? kernel_sendmsg+0x50/0x50 [ 2255.229147][T26470] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2255.235252][T26470] ___sys_sendmsg+0x135/0x1d0 [ 2255.239954][T26470] ? do_recvmmsg+0x740/0x740 [ 2255.244570][T26470] ? find_held_lock+0x2d/0x110 [ 2255.249381][T26470] ? __fget_light+0xe6/0x260 [ 2255.254000][T26470] __sys_sendmsg+0x117/0x1e0 [ 2255.258618][T26470] ? __sys_sendmsg_sock+0x30/0x30 [ 2255.263654][T26470] ? xfd_validate_state+0x5d/0x180 [ 2255.268819][T26470] ? syscall_enter_from_user_mode+0x26/0x80 [ 2255.274741][T26470] do_syscall_64+0x3f/0x110 [ 2255.279277][T26470] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2255.285198][T26470] RIP: 0033:0x7f874a47cae9 [ 2255.289622][T26470] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2255.309241][T26470] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2255.317668][T26470] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2255.325825][T26470] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2255.334152][T26470] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2255.342133][T26470] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2255.350114][T26470] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2255.358109][T26470] 22:28:25 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0xe, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) 22:28:25 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x6d00}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:25 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x1000000, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2255.476723][T26470] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:25 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0xa00}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:25 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x6e00}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:25 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0xfec0, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:25 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000102ad00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:25 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x10, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) 22:28:25 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0xff00, @rand_addr=0x64010100}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:25 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x6f00}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:25 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x2000000, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:25 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x22, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) 22:28:25 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010003}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:25 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x3000000, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2255.774188][T26501] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2255.853542][T26501] CPU: 0 PID: 26501 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2255.863774][T26501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2255.874040][T26501] Call Trace: [ 2255.877347][T26501] [ 2255.880308][T26501] dump_stack_lvl+0x125/0x1b0 [ 2255.885041][T26501] sysfs_warn_dup+0x7f/0xa0 [ 2255.889606][T26501] sysfs_create_dir_ns+0x247/0x2a0 [ 2255.894789][T26501] ? sysfs_create_mount_point+0xb0/0xb0 [ 2255.900399][T26501] ? spin_bug+0x1d0/0x1d0 [ 2255.904791][T26501] ? net_namespace+0x12/0x40 [ 2255.909431][T26501] ? device_namespace+0x8d/0xc0 [ 2255.914338][T26501] kobject_add_internal+0x2c8/0x960 [ 2255.919615][T26501] kobject_add+0x16f/0x240 [ 2255.924093][T26501] ? kset_create_and_add+0x190/0x190 [ 2255.929434][T26501] ? do_raw_spin_unlock+0x173/0x230 [ 2255.934757][T26501] ? kobject_put+0xbe/0x440 [ 2255.939307][T26501] device_add+0x289/0x1aa0 [ 2255.943845][T26501] ? device_initialize+0x510/0x510 [ 2255.948988][T26501] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2255.955870][T26501] ? __init_waitqueue_head+0xca/0x150 [ 2255.961356][T26501] netdev_register_kobject+0x183/0x3f0 [ 2255.966842][T26501] register_netdevice+0xbdf/0x14a0 [ 2255.971975][T26501] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2255.977895][T26501] veth_newlink+0x4ef/0xa00 [ 2255.982508][T26501] ? veth_set_features+0x2d0/0x2d0 [ 2255.987642][T26501] ? rtnl_create_link+0xc9c/0xfd0 [ 2255.992694][T26501] ? __rtnl_newlink+0x108a/0x1930 [ 2255.997743][T26501] ? rtnl_newlink+0x67/0xa0 [ 2256.002372][T26501] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2256.007607][T26501] ? alloc_netdev_mqs+0xee6/0x1290 [ 2256.012823][T26501] ? rtnl_create_link+0xa6d/0xfd0 [ 2256.017973][T26501] ? veth_set_features+0x2d0/0x2d0 [ 2256.023215][T26501] __rtnl_newlink+0x1173/0x1930 [ 2256.028122][T26501] ? rtnl_link_unregister+0x260/0x260 [ 2256.033646][T26501] rtnl_newlink+0x67/0xa0 [ 2256.037992][T26501] ? __rtnl_newlink+0x1930/0x1930 [ 2256.043037][T26501] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2256.047996][T26501] ? rtnl_getlink+0xb40/0xb40 [ 2256.052885][T26501] netlink_rcv_skb+0x16b/0x440 [ 2256.057671][T26501] ? rtnl_getlink+0xb40/0xb40 [ 2256.062369][T26501] ? netlink_ack+0x1370/0x1370 [ 2256.067172][T26501] ? netlink_deliver_tap+0x1a0/0xd00 [ 2256.072574][T26501] netlink_unicast+0x53b/0x810 [ 2256.077362][T26501] ? netlink_attachskb+0x880/0x880 [ 2256.082489][T26501] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2256.088401][T26501] ? __phys_addr_symbol+0x30/0x70 [ 2256.093444][T26501] ? __check_object_size+0x323/0x730 [ 2256.098770][T26501] netlink_sendmsg+0x93c/0xe40 [ 2256.103570][T26501] ? netlink_unicast+0x810/0x810 [ 2256.108545][T26501] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2256.113859][T26501] ? netlink_unicast+0x810/0x810 [ 2256.118826][T26501] __sock_sendmsg+0xd5/0x180 [ 2256.123445][T26501] ____sys_sendmsg+0x6ac/0x940 [ 2256.128231][T26501] ? copy_msghdr_from_user+0x10b/0x160 [ 2256.133753][T26501] ? kernel_sendmsg+0x50/0x50 [ 2256.138546][T26501] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2256.144561][T26501] ___sys_sendmsg+0x135/0x1d0 [ 2256.149373][T26501] ? do_recvmmsg+0x740/0x740 [ 2256.153997][T26501] ? find_held_lock+0x2d/0x110 [ 2256.158898][T26501] ? __fget_light+0xe6/0x260 [ 2256.163517][T26501] __sys_sendmsg+0x117/0x1e0 [ 2256.168182][T26501] ? __sys_sendmsg_sock+0x30/0x30 [ 2256.173420][T26501] ? __do_sys_rseq+0x750/0x750 [ 2256.178236][T26501] ? syscall_enter_from_user_mode+0x26/0x80 [ 2256.184176][T26501] do_syscall_64+0x3f/0x110 [ 2256.188812][T26501] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2256.194723][T26501] RIP: 0033:0x7f70d3c7cae9 [ 2256.199325][T26501] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2256.218968][T26501] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2256.227518][T26501] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2256.235595][T26501] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2256.243576][T26501] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 22:28:25 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x7000}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2256.251559][T26501] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2256.259538][T26501] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2256.267627][T26501] [ 2256.287254][T26501] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2256.512440][T26510] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2256.523497][T26510] CPU: 0 PID: 26510 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2256.533713][T26510] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2256.543829][T26510] Call Trace: [ 2256.547144][T26510] [ 2256.550113][T26510] dump_stack_lvl+0x125/0x1b0 [ 2256.554842][T26510] sysfs_warn_dup+0x7f/0xa0 [ 2256.559398][T26510] sysfs_create_dir_ns+0x247/0x2a0 [ 2256.564580][T26510] ? sysfs_create_mount_point+0xb0/0xb0 [ 2256.570180][T26510] ? spin_bug+0x1d0/0x1d0 [ 2256.574561][T26510] ? net_namespace+0x12/0x40 [ 2256.579188][T26510] ? device_namespace+0x8d/0xc0 [ 2256.584179][T26510] kobject_add_internal+0x2c8/0x960 [ 2256.589446][T26510] kobject_add+0x16f/0x240 [ 2256.594006][T26510] ? kset_create_and_add+0x190/0x190 [ 2256.599346][T26510] ? do_raw_spin_unlock+0x173/0x230 [ 2256.604779][T26510] ? kobject_put+0xbe/0x440 [ 2256.609355][T26510] device_add+0x289/0x1aa0 [ 2256.613864][T26510] ? device_initialize+0x510/0x510 [ 2256.619027][T26510] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2256.625935][T26510] ? __init_waitqueue_head+0xca/0x150 [ 2256.631366][T26510] netdev_register_kobject+0x183/0x3f0 [ 2256.637056][T26510] register_netdevice+0xbdf/0x14a0 [ 2256.642217][T26510] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2256.648160][T26510] ? validate_linkmsg+0x6fc/0x9c0 [ 2256.653245][T26510] br_dev_newlink+0x27/0x110 [ 2256.657898][T26510] ? br_changelink+0x1760/0x1760 [ 2256.662884][T26510] __rtnl_newlink+0x1173/0x1930 [ 2256.667795][T26510] ? rtnl_link_unregister+0x260/0x260 [ 2256.673242][T26510] rtnl_newlink+0x67/0xa0 [ 2256.677606][T26510] ? __rtnl_newlink+0x1930/0x1930 [ 2256.683299][T26510] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2256.688284][T26510] ? rtnl_getlink+0xb40/0xb40 [ 2256.693021][T26510] netlink_rcv_skb+0x16b/0x440 [ 2256.697835][T26510] ? rtnl_getlink+0xb40/0xb40 [ 2256.702567][T26510] ? netlink_ack+0x1370/0x1370 [ 2256.707408][T26510] ? netlink_deliver_tap+0x1a0/0xd00 [ 2256.712757][T26510] netlink_unicast+0x53b/0x810 [ 2256.717587][T26510] ? netlink_attachskb+0x880/0x880 [ 2256.722750][T26510] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2256.728702][T26510] ? __phys_addr_symbol+0x30/0x70 [ 2256.733780][T26510] ? __check_object_size+0x323/0x730 [ 2256.739133][T26510] netlink_sendmsg+0x93c/0xe40 [ 2256.743961][T26510] ? netlink_unicast+0x810/0x810 [ 2256.748961][T26510] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2256.754407][T26510] ? netlink_unicast+0x810/0x810 [ 2256.759390][T26510] __sock_sendmsg+0xd5/0x180 [ 2256.764028][T26510] ____sys_sendmsg+0x6ac/0x940 [ 2256.768865][T26510] ? copy_msghdr_from_user+0x10b/0x160 [ 2256.774369][T26510] ? kernel_sendmsg+0x50/0x50 [ 2256.779872][T26510] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2256.786110][T26510] ___sys_sendmsg+0x135/0x1d0 [ 2256.790842][T26510] ? do_recvmmsg+0x740/0x740 [ 2256.795470][T26510] ? find_held_lock+0x2d/0x110 [ 2256.800310][T26510] ? __fget_light+0xe6/0x260 [ 2256.804956][T26510] __sys_sendmsg+0x117/0x1e0 [ 2256.809592][T26510] ? __sys_sendmsg_sock+0x30/0x30 [ 2256.814660][T26510] ? xfd_validate_state+0x5d/0x180 [ 2256.819847][T26510] ? syscall_enter_from_user_mode+0x26/0x80 [ 2256.825882][T26510] do_syscall_64+0x3f/0x110 [ 2256.830440][T26510] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2256.836372][T26510] RIP: 0033:0x7f874a47cae9 [ 2256.840816][T26510] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2256.860472][T26510] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2256.869011][T26510] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2256.877101][T26510] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2256.885201][T26510] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2256.893205][T26510] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2256.901203][T26510] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2256.909226][T26510] [ 2256.925089][T26510] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:27 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010004}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:27 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x4000000, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:27 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x7100}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:27 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000103ad00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:27 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x3c, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) 22:28:27 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0xb00}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:27 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x7000000, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2257.139486][T26534] __nla_validate_parse: 12 callbacks suppressed [ 2257.139602][T26534] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. 22:28:27 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010102}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) [ 2257.184607][T26534] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2257.223385][T26534] CPU: 1 PID: 26534 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 22:28:27 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x8000000, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2257.233638][T26534] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2257.243738][T26534] Call Trace: [ 2257.247065][T26534] [ 2257.250121][T26534] dump_stack_lvl+0x125/0x1b0 [ 2257.254861][T26534] sysfs_warn_dup+0x7f/0xa0 [ 2257.259435][T26534] sysfs_create_dir_ns+0x247/0x2a0 [ 2257.264700][T26534] ? sysfs_create_mount_point+0xb0/0xb0 [ 2257.270360][T26534] ? spin_bug+0x1d0/0x1d0 [ 2257.274758][T26534] ? net_namespace+0x12/0x40 [ 2257.279391][T26534] ? device_namespace+0x8d/0xc0 [ 2257.284302][T26534] kobject_add_internal+0x2c8/0x960 [ 2257.289568][T26534] kobject_add+0x16f/0x240 [ 2257.294044][T26534] ? kset_create_and_add+0x190/0x190 [ 2257.299392][T26534] ? do_raw_spin_unlock+0x173/0x230 [ 2257.304650][T26534] ? kobject_put+0xbe/0x440 [ 2257.309235][T26534] device_add+0x289/0x1aa0 [ 2257.313707][T26534] ? device_initialize+0x510/0x510 [ 2257.318892][T26534] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2257.325804][T26534] ? __init_waitqueue_head+0xca/0x150 22:28:27 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0xa000000, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2257.331250][T26534] netdev_register_kobject+0x183/0x3f0 [ 2257.336777][T26534] register_netdevice+0xbdf/0x14a0 [ 2257.342047][T26534] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2257.347999][T26534] ? validate_linkmsg+0x6fc/0x9c0 [ 2257.353140][T26534] br_dev_newlink+0x27/0x110 [ 2257.357814][T26534] ? br_changelink+0x1760/0x1760 [ 2257.362897][T26534] __rtnl_newlink+0x1173/0x1930 [ 2257.367827][T26534] ? rtnl_link_unregister+0x260/0x260 [ 2257.373355][T26534] rtnl_newlink+0x67/0xa0 [ 2257.377729][T26534] ? __rtnl_newlink+0x1930/0x1930 [ 2257.382970][T26534] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2257.388298][T26534] ? rtnl_getlink+0xb40/0xb40 [ 2257.393245][T26534] netlink_rcv_skb+0x16b/0x440 [ 2257.398311][T26534] ? rtnl_getlink+0xb40/0xb40 [ 2257.403119][T26534] ? netlink_ack+0x1370/0x1370 [ 2257.408133][T26534] ? netlink_deliver_tap+0x1a0/0xd00 [ 2257.413468][T26534] netlink_unicast+0x53b/0x810 [ 2257.418279][T26534] ? netlink_attachskb+0x880/0x880 [ 2257.423522][T26534] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2257.429458][T26534] ? __phys_addr_symbol+0x30/0x70 [ 2257.434529][T26534] ? __check_object_size+0x323/0x730 [ 2257.439877][T26534] netlink_sendmsg+0x93c/0xe40 [ 2257.444695][T26534] ? netlink_unicast+0x810/0x810 [ 2257.449690][T26534] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2257.455017][T26534] ? netlink_unicast+0x810/0x810 [ 2257.460005][T26534] __sock_sendmsg+0xd5/0x180 [ 2257.464676][T26534] ____sys_sendmsg+0x6ac/0x940 [ 2257.469568][T26534] ? copy_msghdr_from_user+0x10b/0x160 [ 2257.475160][T26534] ? kernel_sendmsg+0x50/0x50 [ 2257.479903][T26534] ? lockdep_hardirqs_on_prepare+0x410/0x410 22:28:27 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010104}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) [ 2257.486035][T26534] ___sys_sendmsg+0x135/0x1d0 [ 2257.490775][T26534] ? do_recvmmsg+0x740/0x740 [ 2257.495413][T26534] ? find_held_lock+0x2d/0x110 [ 2257.501310][T26534] ? __fget_light+0xe6/0x260 [ 2257.506057][T26534] __sys_sendmsg+0x117/0x1e0 [ 2257.510722][T26534] ? __sys_sendmsg_sock+0x30/0x30 [ 2257.515824][T26534] ? xfd_validate_state+0x5d/0x180 [ 2257.521283][T26534] ? syscall_enter_from_user_mode+0x26/0x80 [ 2257.527238][T26534] do_syscall_64+0x3f/0x110 [ 2257.531810][T26534] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2257.537761][T26534] RIP: 0033:0x7f874a47cae9 [ 2257.542218][T26534] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2257.562167][T26534] RSP: 002b:00007f874b1350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2257.570627][T26534] RAX: ffffffffffffffda RBX: 00007f874a59bf80 RCX: 00007f874a47cae9 22:28:27 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x7200}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2257.578656][T26534] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2257.587026][T26534] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2257.595734][T26534] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2257.603834][T26534] R13: 000000000000004d R14: 00007f874a59bf80 R15: 00007ffe8df6a4b8 [ 2257.611870][T26534] 22:28:27 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0xe000000, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:27 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010106}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) [ 2257.768227][T26534] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:27 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0xf000000, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) [ 2257.821534][T26535] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2257.864832][T26535] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2257.905832][T26535] CPU: 0 PID: 26535 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2257.915965][T26535] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2257.926042][T26535] Call Trace: [ 2257.929366][T26535] [ 2257.932320][T26535] dump_stack_lvl+0x125/0x1b0 [ 2257.937059][T26535] sysfs_warn_dup+0x7f/0xa0 [ 2257.941657][T26535] sysfs_create_dir_ns+0x247/0x2a0 [ 2257.946828][T26535] ? sysfs_create_mount_point+0xb0/0xb0 [ 2257.952423][T26535] ? spin_bug+0x1d0/0x1d0 [ 2257.956781][T26535] ? net_namespace+0x12/0x40 [ 2257.961402][T26535] ? device_namespace+0x8d/0xc0 [ 2257.966305][T26535] kobject_add_internal+0x2c8/0x960 [ 2257.971564][T26535] kobject_add+0x16f/0x240 [ 2257.976237][T26535] ? kset_create_and_add+0x190/0x190 [ 2257.982734][T26535] ? kobject_put+0xbe/0x440 [ 2257.987410][T26535] device_add+0x289/0x1aa0 [ 2257.991880][T26535] ? device_initialize+0x510/0x510 [ 2257.997065][T26535] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2258.004070][T26535] ? __init_waitqueue_head+0xca/0x150 [ 2258.009506][T26535] netdev_register_kobject+0x183/0x3f0 [ 2258.015028][T26535] register_netdevice+0xbdf/0x14a0 [ 2258.020192][T26535] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2258.026144][T26535] veth_newlink+0x4ef/0xa00 [ 2258.030745][T26535] ? veth_set_features+0x2d0/0x2d0 [ 2258.035902][T26535] ? rtnl_create_link+0xc9c/0xfd0 [ 2258.040994][T26535] ? __rtnl_newlink+0x108a/0x1930 [ 2258.046233][T26535] ? rtnl_newlink+0x67/0xa0 [ 2258.050853][T26535] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2258.056125][T26535] ? alloc_netdev_mqs+0xee6/0x1290 [ 2258.061307][T26535] ? rtnl_create_link+0xa6d/0xfd0 [ 2258.066393][T26535] ? veth_set_features+0x2d0/0x2d0 [ 2258.071551][T26535] __rtnl_newlink+0x1173/0x1930 [ 2258.076460][T26535] ? rtnl_link_unregister+0x260/0x260 [ 2258.081936][T26535] rtnl_newlink+0x67/0xa0 [ 2258.086315][T26535] ? __rtnl_newlink+0x1930/0x1930 [ 2258.091390][T26535] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2258.096504][T26535] ? rtnl_getlink+0xb40/0xb40 [ 2258.101239][T26535] netlink_rcv_skb+0x16b/0x440 [ 2258.106053][T26535] ? rtnl_getlink+0xb40/0xb40 [ 2258.110774][T26535] ? netlink_ack+0x1370/0x1370 [ 2258.115693][T26535] ? netlink_deliver_tap+0x1a0/0xd00 [ 2258.121042][T26535] netlink_unicast+0x53b/0x810 [ 2258.125862][T26535] ? netlink_attachskb+0x880/0x880 [ 2258.131102][T26535] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2258.137135][T26535] ? __phys_addr_symbol+0x30/0x70 [ 2258.142310][T26535] ? __check_object_size+0x323/0x730 [ 2258.147656][T26535] netlink_sendmsg+0x93c/0xe40 [ 2258.152564][T26535] ? netlink_unicast+0x810/0x810 [ 2258.157565][T26535] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2258.162891][T26535] ? netlink_unicast+0x810/0x810 [ 2258.167869][T26535] __sock_sendmsg+0xd5/0x180 [ 2258.172538][T26535] ____sys_sendmsg+0x6ac/0x940 [ 2258.177339][T26535] ? copy_msghdr_from_user+0x10b/0x160 [ 2258.182926][T26535] ? kernel_sendmsg+0x50/0x50 [ 2258.187651][T26535] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2258.193796][T26535] ___sys_sendmsg+0x135/0x1d0 [ 2258.198604][T26535] ? do_recvmmsg+0x740/0x740 [ 2258.203230][T26535] ? find_held_lock+0x2d/0x110 [ 2258.208084][T26535] ? __fget_light+0xe6/0x260 [ 2258.212742][T26535] __sys_sendmsg+0x117/0x1e0 [ 2258.217643][T26535] ? __sys_sendmsg_sock+0x30/0x30 [ 2258.222805][T26535] ? xfd_validate_state+0x5d/0x180 [ 2258.228173][T26535] ? syscall_enter_from_user_mode+0x26/0x80 [ 2258.234211][T26535] do_syscall_64+0x3f/0x110 [ 2258.238771][T26535] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2258.244795][T26535] RIP: 0033:0x7f70d3c7cae9 [ 2258.249249][T26535] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2258.268988][T26535] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2258.277443][T26535] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2258.285448][T26535] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2258.293449][T26535] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2258.301447][T26535] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2258.309621][T26535] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2258.317830][T26535] [ 2258.341631][T26535] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. [ 2258.377527][T26537] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. [ 2258.403345][T26540] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. 22:28:28 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000100ae00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:28 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x7300}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:28 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0xc00}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:28 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010107}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:28 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x1f000000, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:28 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x44, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) [ 2258.433737][T26545] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. 22:28:28 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x7400}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2258.518785][T26569] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. 22:28:28 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x3a310100, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:28 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x64010109}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:28 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x48, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) [ 2258.600718][T26574] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2258.699943][T26574] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2258.759302][T26574] CPU: 1 PID: 26574 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2258.769533][T26574] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2258.780323][T26574] Call Trace: [ 2258.783716][T26574] [ 2258.786769][T26574] dump_stack_lvl+0x125/0x1b0 [ 2258.791530][T26574] sysfs_warn_dup+0x7f/0xa0 [ 2258.796191][T26574] sysfs_create_dir_ns+0x247/0x2a0 [ 2258.801469][T26574] ? sysfs_create_mount_point+0xb0/0xb0 [ 2258.807097][T26574] ? spin_bug+0x1d0/0x1d0 [ 2258.811521][T26574] ? net_namespace+0x12/0x40 [ 2258.816165][T26574] ? device_namespace+0x8d/0xc0 [ 2258.821080][T26574] kobject_add_internal+0x2c8/0x960 [ 2258.826359][T26574] kobject_add+0x16f/0x240 [ 2258.830932][T26574] ? kset_create_and_add+0x190/0x190 [ 2258.836496][T26574] ? do_raw_spin_unlock+0x173/0x230 [ 2258.841769][T26574] ? kobject_put+0xbe/0x440 [ 2258.846349][T26574] device_add+0x289/0x1aa0 [ 2258.850823][T26574] ? device_initialize+0x510/0x510 [ 2258.856005][T26574] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2258.863017][T26574] ? __init_waitqueue_head+0xca/0x150 [ 2258.868543][T26574] netdev_register_kobject+0x183/0x3f0 [ 2258.874067][T26574] register_netdevice+0xbdf/0x14a0 [ 2258.879353][T26574] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2258.885328][T26574] veth_newlink+0x4ef/0xa00 [ 2258.889879][T26574] ? veth_set_features+0x2d0/0x2d0 [ 2258.895206][T26574] ? rtnl_create_link+0xc9c/0xfd0 [ 2258.900280][T26574] ? __rtnl_newlink+0x108a/0x1930 [ 2258.905440][T26574] ? rtnl_newlink+0x67/0xa0 [ 2258.910049][T26574] ? __xdp_rxq_info_reg+0x18c/0x340 [ 2258.915303][T26574] ? alloc_netdev_mqs+0xee6/0x1290 [ 2258.920477][T26574] ? rtnl_create_link+0xa6d/0xfd0 [ 2258.925652][T26574] ? veth_set_features+0x2d0/0x2d0 [ 2258.930900][T26574] __rtnl_newlink+0x1173/0x1930 [ 2258.935992][T26574] ? rtnl_link_unregister+0x260/0x260 [ 2258.941998][T26574] rtnl_newlink+0x67/0xa0 [ 2258.946987][T26574] ? __rtnl_newlink+0x1930/0x1930 [ 2258.952065][T26574] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2258.957051][T26574] ? rtnl_getlink+0xb40/0xb40 [ 2258.961773][T26574] ? find_held_lock+0x2d/0x110 [ 2258.966594][T26574] ? rcu_preempt_deferred_qs_irqrestore+0x684/0xdb0 [ 2258.973443][T26574] ? reacquire_held_locks+0x4b0/0x4b0 [ 2258.979237][T26574] netlink_rcv_skb+0x16b/0x440 [ 2258.984051][T26574] ? rtnl_getlink+0xb40/0xb40 [ 2258.989501][T26574] ? netlink_ack+0x1370/0x1370 [ 2258.994323][T26574] ? _raw_spin_unlock_irqrestore+0x3b/0x70 [ 2259.000208][T26574] ? __rcu_read_unlock+0x2ad/0x570 [ 2259.005377][T26574] ? netlink_deliver_tap+0x1a0/0xd00 [ 2259.010726][T26574] netlink_unicast+0x53b/0x810 [ 2259.015554][T26574] ? netlink_attachskb+0x880/0x880 [ 2259.020714][T26574] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2259.026658][T26574] ? __phys_addr_symbol+0x30/0x70 [ 2259.031730][T26574] ? __check_object_size+0x323/0x730 [ 2259.037080][T26574] netlink_sendmsg+0x93c/0xe40 [ 2259.041900][T26574] ? netlink_unicast+0x810/0x810 [ 2259.046890][T26574] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2259.052211][T26574] ? netlink_unicast+0x810/0x810 [ 2259.057192][T26574] __sock_sendmsg+0xd5/0x180 [ 2259.061816][T26574] ____sys_sendmsg+0x6ac/0x940 [ 2259.066615][T26574] ? copy_msghdr_from_user+0x10b/0x160 [ 2259.072120][T26574] ? kernel_sendmsg+0x50/0x50 [ 2259.076937][T26574] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2259.083066][T26574] ___sys_sendmsg+0x135/0x1d0 [ 2259.087798][T26574] ? do_recvmmsg+0x740/0x740 [ 2259.092440][T26574] ? find_held_lock+0x2d/0x110 [ 2259.097282][T26574] ? __fget_light+0xe6/0x260 [ 2259.101924][T26574] __sys_sendmsg+0x117/0x1e0 [ 2259.106557][T26574] ? __sys_sendmsg_sock+0x30/0x30 [ 2259.111716][T26574] ? xfd_validate_state+0x5d/0x180 [ 2259.116900][T26574] ? syscall_enter_from_user_mode+0x26/0x80 [ 2259.122855][T26574] do_syscall_64+0x3f/0x110 [ 2259.127503][T26574] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2259.133620][T26574] RIP: 0033:0x7f70d3c7cae9 [ 2259.138330][T26574] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2259.158328][T26574] RSP: 002b:00007f70d490e0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2259.166788][T26574] RAX: ffffffffffffffda RBX: 00007f70d3d9bf80 RCX: 00007f70d3c7cae9 [ 2259.174883][T26574] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 2259.183942][T26574] RBP: 00007f70d3cc847a R08: 0000000000000000 R09: 0000000000000000 [ 2259.193266][T26574] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2259.201447][T26574] R13: 000000000000000b R14: 00007f70d3d9bf80 R15: 00007ffd93047b68 [ 2259.209738][T26574] [ 2259.223312][T26574] kobject: kobject_add_internal failed for veth10000000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:29 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x6401010a}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:29 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x7500}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) [ 2259.352341][T26577] netlink: 72 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2259.374157][T26582] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. [ 2259.403919][T26587] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2259.415440][T26587] sysfs: cannot create duplicate filename '/devices/virtual/net/bridge100000000' [ 2259.434046][T26587] CPU: 0 PID: 26587 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2259.444338][T26587] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2259.454435][T26587] Call Trace: [ 2259.457754][T26587] [ 2259.460713][T26587] dump_stack_lvl+0x125/0x1b0 [ 2259.465461][T26587] sysfs_warn_dup+0x7f/0xa0 [ 2259.470030][T26587] sysfs_create_dir_ns+0x247/0x2a0 [ 2259.475201][T26587] ? sysfs_create_mount_point+0xb0/0xb0 [ 2259.480800][T26587] ? spin_bug+0x1d0/0x1d0 [ 2259.485271][T26587] ? net_namespace+0x12/0x40 [ 2259.489897][T26587] ? device_namespace+0x8d/0xc0 [ 2259.494805][T26587] kobject_add_internal+0x2c8/0x960 [ 2259.500149][T26587] kobject_add+0x16f/0x240 [ 2259.504630][T26587] ? kset_create_and_add+0x190/0x190 [ 2259.509978][T26587] ? do_raw_spin_unlock+0x173/0x230 [ 2259.515267][T26587] ? kobject_put+0xbe/0x440 [ 2259.519842][T26587] device_add+0x289/0x1aa0 [ 2259.524320][T26587] ? device_initialize+0x510/0x510 [ 2259.529579][T26587] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 2259.536495][T26587] ? __init_waitqueue_head+0xca/0x150 [ 2259.541922][T26587] netdev_register_kobject+0x183/0x3f0 [ 2259.547435][T26587] register_netdevice+0xbdf/0x14a0 [ 2259.552607][T26587] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 2259.558542][T26587] ? validate_linkmsg+0x6fc/0x9c0 [ 2259.563629][T26587] br_dev_newlink+0x27/0x110 [ 2259.568276][T26587] ? br_changelink+0x1760/0x1760 [ 2259.573260][T26587] __rtnl_newlink+0x1173/0x1930 [ 2259.578162][T26587] ? rtnl_link_unregister+0x260/0x260 [ 2259.583967][T26587] rtnl_newlink+0x67/0xa0 [ 2259.588344][T26587] ? __rtnl_newlink+0x1930/0x1930 [ 2259.593409][T26587] rtnetlink_rcv_msg+0x3c7/0xe00 [ 2259.598400][T26587] ? rtnl_getlink+0xb40/0xb40 [ 2259.603131][T26587] netlink_rcv_skb+0x16b/0x440 [ 2259.607936][T26587] ? rtnl_getlink+0xb40/0xb40 [ 2259.612655][T26587] ? netlink_ack+0x1370/0x1370 [ 2259.617484][T26587] ? netlink_deliver_tap+0x1a0/0xd00 [ 2259.622828][T26587] netlink_unicast+0x53b/0x810 [ 2259.627641][T26587] ? netlink_attachskb+0x880/0x880 [ 2259.632794][T26587] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 2259.638735][T26587] ? __phys_addr_symbol+0x30/0x70 [ 2259.643804][T26587] ? __check_object_size+0x323/0x730 [ 2259.649143][T26587] netlink_sendmsg+0x93c/0xe40 [ 2259.653965][T26587] ? netlink_unicast+0x810/0x810 [ 2259.658963][T26587] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 2259.664314][T26587] ? netlink_unicast+0x810/0x810 [ 2259.669320][T26587] __sock_sendmsg+0xd5/0x180 [ 2259.674304][T26587] ____sys_sendmsg+0x6ac/0x940 [ 2259.679106][T26587] ? copy_msghdr_from_user+0x10b/0x160 [ 2259.684615][T26587] ? kernel_sendmsg+0x50/0x50 [ 2259.689351][T26587] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 2259.695407][T26587] ___sys_sendmsg+0x135/0x1d0 [ 2259.700291][T26587] ? do_recvmmsg+0x740/0x740 [ 2259.705292][T26587] ? find_held_lock+0x2d/0x110 [ 2259.710175][T26587] ? __fget_light+0xe6/0x260 [ 2259.714824][T26587] __sys_sendmsg+0x117/0x1e0 [ 2259.719464][T26587] ? __sys_sendmsg_sock+0x30/0x30 [ 2259.724529][T26587] ? xfd_validate_state+0x5d/0x180 [ 2259.729716][T26587] ? syscall_enter_from_user_mode+0x26/0x80 [ 2259.735664][T26587] do_syscall_64+0x3f/0x110 [ 2259.740216][T26587] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2259.746147][T26587] RIP: 0033:0x7f874a47cae9 [ 2259.750588][T26587] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 2259.770240][T26587] RSP: 002b:00007f874b1140c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2259.778719][T26587] RAX: ffffffffffffffda RBX: 00007f874a59c050 RCX: 00007f874a47cae9 [ 2259.787060][T26587] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 [ 2259.795159][T26587] RBP: 00007f874a4c847a R08: 0000000000000000 R09: 0000000000000000 [ 2259.803169][T26587] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 2259.811198][T26587] R13: 000000000000006e R14: 00007f874a59c050 R15: 00007ffe8df6a4b8 [ 2259.819232][T26587] [ 2259.833444][T26587] kobject: kobject_add_internal failed for bridge100000000 with -EEXIST, don't try to register things with the same name in the same directory. 22:28:29 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0), r1) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) r3 = socket(0x1, 0x803, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000002c0)=0x14) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000080)={'bridge_slave_1\x00', 0x0}) r6 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="4c00000010000101ae00"/20, @ANYRES32=r5, @ANYBLOB="000000002c0012801100010062"], 0x4c}}, 0x0) 22:28:29 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x40020000, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:29 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x7600}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:29 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x6401010f}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) 22:28:29 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x4c, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) 22:28:29 executing program 4: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r3, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000300)={0x0, 0x18}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=ANY=[@ANYBLOB="4800000010000507000000001000000000000040", @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c00010076657468"], 0x48}}, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB="7400000024000705000400"/20, @ANYRES32=r4, @ANYBLOB="00000000ffffffff0000000008000100716671"], 0x74}}, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r4}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) getsockname$packet(r3, &(0x7f0000000400)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000440)=0x14) sendmsg$nl_route_sched(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000380)=@newtfilter={0x34, 0x28, 0xd27, 0x0, 0x0, {0x0, 0x0, 0x0, r6, {0xffff, 0xe00}}, [@filter_kind_options=@f_rsvp6={{0xa}, {0x4}}]}, 0x34}}, 0x0) 22:28:30 executing program 0: r0 = socket$kcm(0x2, 0x200000000000001, 0x106) sendmsg$inet(r0, &(0x7f0000000080)={&(0x7f0000000140)={0x2, 0x4001, @dev}, 0x10, 0x0}, 0x30004041) sendmmsg$inet(r0, &(0x7f0000001ec0)=[{{0x0, 0x42000000, &(0x7f0000001340)=[{&(0x7f0000000180)="04", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x2c8c0) 22:28:30 executing program 1: r0 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000009c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x17, &(0x7f0000000240)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {{0x5, 0x0, 0x5, 0x9, 0x0, 0x7700}}, [@printk={@pointer, {}, {}, {}, {}, {}, {0x72}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f00000000c0)='GPL\x00'}, 0x90) 22:28:30 executing program 2: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) getsockname$packet(r1, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000180)={0x0, 0x60, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="3c0000001000010400000400ec00000000000000", @ANYRES32=r2, @ANYBLOB="00000000000000001c0012000b000100627269646765"], 0x3c}}, 0x0) 22:28:30 executing program 5: r0 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000100)={0xfa}, 0x4) sendmsg$inet_sctp(r0, &(0x7f00000000c0)={&(0x7f0000000040)=@in={0x2, 0x0, @rand_addr=0x640101fc}, 0x10, &(0x7f0000000080)=[{&(0x7f00000002c0)="0f", 0x1}], 0x1}, 0xc0fe) [ 2260.166393][T26608] sysfs: cannot create duplicate filename '/devices/virtual/net/veth10000000000' [ 2260.178787][T26611] general protection fault, probably for non-canonical address 0xdffffc00000000f1: 0000 [#1] PREEMPT SMP KASAN [ 2260.190637][T26611] KASAN: null-ptr-deref in range [0x0000000000000788-0x000000000000078f] [ 2260.199072][T26611] CPU: 1 PID: 26611 Comm: syz-executor.0 Not tainted 6.6.0-syzkaller-15864-g719639853d88 #0 [ 2260.209489][T26611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 2260.219535][T26611] RIP: 0010:__mptcp_set_connected+0x57/0x3e0 [ 2260.226006][T26611] Code: 03 80 3c 02 00 0f 85 6f 03 00 00 48 8b 9d e8 09 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 88 07 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 3c 03 00 00 48 8d bb 6c 02 00 00 4c 8b ab 88 07 [ 2260.245609][T26611] RSP: 0018:ffffc9000bbf7c88 EFLAGS: 00010202 [ 2260.251666][T26611] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8a6782fc [ 2260.259710][T26611] RDX: 00000000000000f1 RSI: ffffffff8a6851d6 RDI: 0000000000000788 [ 2260.267664][T26611] RBP: ffff88803f172f00 R08: 0000000000000001 R09: 0000000000000000 [ 2260.275720][T26611] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88803f172f98 [ 2260.283768][T26611] R13: ffff8880429f8618 R14: 0000000000000000 R15: ffff88803f172f00 [ 2260.291836][T26611] FS: 000055555714d480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 2260.300773][T26611] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2260.307612][T26611] CR2: 0000000020001ec0 CR3: 0000000059d14000 CR4: 00000000003506f0 [ 2260.315576][T26611] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2260.324055][T26611] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2260.332029][T26611] Call Trace: [ 2260.335307][T26611] [ 2260.338587][T26611] ? show_regs+0x8f/0xa0 [ 2260.342821][T26611] ? die_addr+0x4f/0xd0 [ 2260.346964][T26611] ? exc_general_protection+0x154/0x230 [ 2260.352594][T26611] ? asm_exc_general_protection+0x26/0x30 [ 2260.358303][T26611] ? mptcp_release_cb+0x74c/0xc40 [ 2260.363330][T26611] ? __mptcp_set_connected+0x16/0x3e0 [ 2260.368724][T26611] ? __mptcp_set_connected+0x57/0x3e0 [ 2260.374095][T26611] ? __mptcp_set_connected+0x16/0x3e0 [ 2260.379464][T26611] mptcp_release_cb+0xa2c/0xc40 [ 2260.384311][T26611] ? lock_sync+0x190/0x190 [ 2260.388812][T26611] ? do_raw_spin_lock+0x12e/0x2b0 [ 2260.393864][T26611] ? mptcp_stream_accept+0x6f0/0x6f0 [ 2260.399139][T26611] ? spin_bug+0x1d0/0x1d0 [ 2260.403465][T26611] ? mptcp_stream_accept+0x6f0/0x6f0 [ 2260.408925][T26611] ? __sock_release+0x260/0x260 [ 2260.413777][T26611] release_sock+0xba/0x1f0 [ 2260.418184][T26611] mptcp_close+0x32/0xf0 [ 2260.422414][T26611] inet_release+0x132/0x270 [ 2260.426906][T26611] __sock_release+0xae/0x260 [ 2260.431574][T26611] sock_close+0x1c/0x20 [ 2260.435720][T26611] __fput+0x270/0xbb0 [ 2260.439698][T26611] __fput_sync+0x47/0x50 [ 2260.443929][T26611] __x64_sys_close+0x87/0xf0 [ 2260.448505][T26611] do_syscall_64+0x3f/0x110 [ 2260.453006][T26611] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 2260.458899][T26611] RIP: 0033:0x7fedc2e7b9da [ 2260.463302][T26611] Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24 [ 2260.482906][T26611] RSP: 002b:00007ffdb0854e00 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 2260.491335][T26611] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fedc2e7b9da [ 2260.499302][T26611] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 2260.507272][T26611] RBP: 0000000000000032 R08: 0000001b32320000 R09: 0000000000000041 [ 2260.515259][T26611] R10: 0000000081740a5b R11: 0000000000000293 R12: 00007fedc2a00668 [ 2260.523245][T26611] R13: ffffffffffffffff R14: 00007fedc2a00000 R15: 0000000000227c7d [ 2260.531387][T26611] [ 2260.534395][T26611] Modules linked in: [ 2260.538373][T26611] ---[ end trace 0000000000000000 ]--- [ 2260.543845][T26611] RIP: 0010:__mptcp_set_connected+0x57/0x3e0 [ 2260.549830][T26611] Code: 03 80 3c 02 00 0f 85 6f 03 00 00 48 8b 9d e8 09 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 88 07 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 3c 03 00 00 48 8d bb 6c 02 00 00 4c 8b ab 88 07 [ 2260.569739][T26611] RSP: 0018:ffffc9000bbf7c88 EFLAGS: 00010202 [ 2260.575835][T26611] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8a6782fc [ 2260.583826][T26611] RDX: 00000000000000f1 RSI: ffffffff8a6851d6 RDI: 0000000000000788 [ 2260.593140][T26611] RBP: ffff88803f172f00 R08: 0000000000000001 R09: 0000000000000000 [ 2260.601116][T26611] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88803f172f98 [ 2260.609303][T26611] R13: ffff8880429f8618 R14: 0000000000000000 R15: ffff88803f172f00 [ 2260.617305][T26611] FS: 000055555714d480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 2260.626444][T26611] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2260.633392][T26611] CR2: 0000000020001ec0 CR3: 0000000059d14000 CR4: 00000000003506f0 [ 2260.641451][T26611] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2260.649430][T26611] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2260.657406][T26611] Kernel panic - not syncing: Fatal exception in interrupt [ 2260.664842][T26611] Kernel Offset: disabled [ 2260.669498][T26611] Rebooting in 86400 seconds..