0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0428fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:01 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024100005d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:01 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0463fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:01 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700", 0x2c}], 0x1}, 0x0) 23:42:02 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700", 0x2c}], 0x1}, 0x0) [ 2974.878235][T16180] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.0'. 23:42:02 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1", 0x2d}], 0x1}, 0x0) [ 2974.925327][T16180] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 2974.925327][T16180] !' [ 2974.957163][T16180] CPU: 0 PID: 16180 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 23:42:02 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1", 0x2d}], 0x1}, 0x0) [ 2974.965878][T16180] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2974.975937][T16180] Call Trace: [ 2974.979246][T16180] dump_stack+0x188/0x20d [ 2974.983591][T16180] sysfs_warn_dup.cold+0x1c/0x2d [ 2974.988545][T16180] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 2974.994627][T16180] sysfs_create_link+0x61/0xc0 [ 2974.999404][T16180] device_add+0x71c/0x1bc0 [ 2975.003829][T16180] ? retint_kernel+0x2b/0x2b [ 2975.008424][T16180] ? uevent_show+0x360/0x360 [ 2975.013036][T16180] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 2975.019025][T16180] wiphy_register+0x1c46/0x2720 23:42:02 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1", 0x2d}], 0x1}, 0x0) [ 2975.023902][T16180] ? wiphy_unregister+0xf90/0xf90 [ 2975.028938][T16180] ? retint_kernel+0x2b/0x2b [ 2975.033547][T16180] ? ieee80211_register_hw+0xfd7/0x36a0 [ 2975.039123][T16180] ieee80211_register_hw+0x13d4/0x36a0 [ 2975.044595][T16180] ? __debug_object_init+0x4a1/0xe20 [ 2975.049907][T16180] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 2975.055381][T16180] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 2975.060940][T16180] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 2975.066927][T16180] ? memset+0x20/0x40 [ 2975.070916][T16180] ? __hrtimer_init+0x134/0x260 [ 2975.075778][T16180] mac80211_hwsim_new_radio+0x222f/0x4490 [ 2975.081504][T16180] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2975.086810][T16180] ? hwsim_register_received_nl+0x400/0x400 [ 2975.092714][T16180] ? hwsim_new_radio_nl+0x9a3/0xf60 [ 2975.097936][T16180] hwsim_new_radio_nl+0x905/0xf60 [ 2975.102960][T16180] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 2975.108861][T16180] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 2975.114576][T16180] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 2975.120886][T16180] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 2975.127199][T16180] genl_rcv_msg+0x627/0xdf0 [ 2975.131694][T16180] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2975.138005][T16180] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2975.143273][T16180] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2975.148735][T16180] netlink_rcv_skb+0x15a/0x410 [ 2975.153497][T16180] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2975.159811][T16180] ? netlink_ack+0xa80/0xa80 [ 2975.164388][T16180] genl_rcv+0x24/0x40 [ 2975.168363][T16180] netlink_unicast+0x537/0x740 [ 2975.173137][T16180] ? netlink_attachskb+0x810/0x810 [ 2975.178229][T16180] ? _copy_from_iter_full+0x25c/0x870 [ 2975.183593][T16180] ? __phys_addr_symbol+0x2c/0x70 [ 2975.188612][T16180] ? __check_object_size+0x171/0x437 [ 2975.193884][T16180] netlink_sendmsg+0x882/0xe10 [ 2975.198632][T16180] ? aa_af_perm+0x260/0x260 [ 2975.203116][T16180] ? netlink_unicast+0x740/0x740 [ 2975.208065][T16180] ? netlink_unicast+0x740/0x740 [ 2975.213005][T16180] sock_sendmsg+0xcf/0x120 [ 2975.217450][T16180] ____sys_sendmsg+0x6b9/0x7d0 [ 2975.222199][T16180] ? kernel_sendmsg+0x50/0x50 [ 2975.226862][T16180] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2975.232309][T16180] ___sys_sendmsg+0x100/0x170 [ 2975.236985][T16180] ? sendmsg_copy_msghdr+0x70/0x70 [ 2975.242135][T16180] ? __fget_files+0x329/0x4f0 [ 2975.246837][T16180] ? ksys_dup3+0x3c0/0x3c0 [ 2975.251238][T16180] ? lock_acquire+0x197/0x420 [ 2975.255948][T16180] ? __might_fault+0xef/0x1d0 [ 2975.260610][T16180] ? __fget_light+0x208/0x270 [ 2975.265272][T16180] __sys_sendmsg+0xec/0x1b0 [ 2975.269772][T16180] ? __sys_sendmsg_sock+0xb0/0xb0 [ 2975.274780][T16180] ? __x64_sys_futex+0x380/0x4f0 [ 2975.279709][T16180] ? trace_hardirqs_off_caller+0x55/0x230 [ 2975.285457][T16180] ? do_syscall_64+0x21/0x7d0 [ 2975.290130][T16180] do_syscall_64+0xf6/0x7d0 [ 2975.294646][T16180] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 2975.300523][T16180] RIP: 0033:0x45c849 [ 2975.304403][T16180] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 23:42:02 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c6394280424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 2975.323995][T16180] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2975.332395][T16180] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 2975.340402][T16180] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 2975.348360][T16180] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 2975.356315][T16180] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 2975.364268][T16180] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 2975.402911][T16182] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2975.447339][T16182] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 2975.447339][T16182] !' [ 2975.458809][T16182] CPU: 1 PID: 16182 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 2975.467501][T16182] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2975.477559][T16182] Call Trace: [ 2975.480837][T16182] dump_stack+0x188/0x20d [ 2975.485154][T16182] sysfs_warn_dup.cold+0x1c/0x2d [ 2975.490091][T16182] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 2975.496151][T16182] sysfs_create_link+0x61/0xc0 [ 2975.500897][T16182] device_add+0x71c/0x1bc0 [ 2975.505300][T16182] ? __sanitizer_cov_trace_switch+0x32/0x70 [ 2975.511194][T16182] ? uevent_show+0x360/0x360 [ 2975.515790][T16182] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 2975.521779][T16182] wiphy_register+0x1c46/0x2720 [ 2975.526690][T16182] ? wiphy_unregister+0xf90/0xf90 [ 2975.531720][T16182] ? retint_kernel+0x2b/0x2b [ 2975.536316][T16182] ? ieee80211_register_hw+0x1375/0x36a0 [ 2975.541935][T16182] ieee80211_register_hw+0x13d4/0x36a0 [ 2975.547383][T16182] ? __debug_object_init+0x4a1/0xe20 [ 2975.552673][T16182] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 2975.558130][T16182] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 2975.563663][T16182] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 2975.569637][T16182] ? memset+0x20/0x40 [ 2975.573622][T16182] ? __hrtimer_init+0x134/0x260 [ 2975.578465][T16182] mac80211_hwsim_new_radio+0x222f/0x4490 [ 2975.584199][T16182] ? hwsim_register_received_nl+0x400/0x400 [ 2975.590103][T16182] hwsim_new_radio_nl+0x905/0xf60 [ 2975.595164][T16182] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2975.600444][T16182] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 2975.606328][T16182] genl_rcv_msg+0x627/0xdf0 [ 2975.610836][T16182] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2975.617274][T16182] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 2975.623069][T16182] netlink_rcv_skb+0x15a/0x410 [ 2975.627825][T16182] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2975.634151][T16182] ? netlink_ack+0xa80/0xa80 [ 2975.638737][T16182] genl_rcv+0x24/0x40 [ 2975.642722][T16182] netlink_unicast+0x537/0x740 [ 2975.647520][T16182] ? netlink_attachskb+0x810/0x810 [ 2975.652707][T16182] netlink_sendmsg+0x882/0xe10 [ 2975.657469][T16182] ? aa_af_perm+0x260/0x260 [ 2975.661984][T16182] ? netlink_unicast+0x740/0x740 [ 2975.666930][T16182] ? netlink_unicast+0x740/0x740 [ 2975.671861][T16182] sock_sendmsg+0xcf/0x120 [ 2975.676268][T16182] ____sys_sendmsg+0x6b9/0x7d0 [ 2975.681022][T16182] ? kernel_sendmsg+0x50/0x50 [ 2975.685698][T16182] ___sys_sendmsg+0x100/0x170 [ 2975.690361][T16182] ? rcu_preempt_deferred_qs_irqrestore+0x672/0xb60 [ 2975.696938][T16182] ? sendmsg_copy_msghdr+0x70/0x70 [ 2975.702041][T16182] ? __rcu_read_unlock+0x26c/0x700 [ 2975.707143][T16182] ? __fget_files+0x329/0x4f0 [ 2975.711810][T16182] ? ksys_dup3+0x3c0/0x3c0 [ 2975.716208][T16182] ? lock_acquire+0x197/0x420 [ 2975.720884][T16182] ? __might_fault+0xef/0x1d0 [ 2975.725551][T16182] ? __fget_light+0x208/0x270 [ 2975.730219][T16182] __sys_sendmsg+0xec/0x1b0 [ 2975.734793][T16182] ? __sys_sendmsg_sock+0xb0/0xb0 [ 2975.739810][T16182] ? __x64_sys_futex+0x380/0x4f0 [ 2975.744736][T16182] ? trace_hardirqs_off_caller+0x55/0x230 [ 2975.750439][T16182] ? do_syscall_64+0x21/0x7d0 [ 2975.755103][T16182] do_syscall_64+0xf6/0x7d0 [ 2975.759601][T16182] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 2975.765471][T16182] RIP: 0033:0x45c849 [ 2975.769350][T16182] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 2975.788955][T16182] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e 23:42:02 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 2975.797383][T16182] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 2975.805359][T16182] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 2975.813322][T16182] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 2975.821288][T16182] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 2975.829255][T16182] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 2975.858863][T16194] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.5'. [ 2975.898425][T16194] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 2975.898425][T16194] !' [ 2975.914520][T16194] CPU: 1 PID: 16194 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 2975.923217][T16194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2975.933265][T16194] Call Trace: [ 2975.936563][T16194] dump_stack+0x188/0x20d [ 2975.940893][T16194] sysfs_warn_dup.cold+0x1c/0x2d [ 2975.945815][T16194] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 2975.951911][T16194] sysfs_create_link+0x61/0xc0 [ 2975.956679][T16194] device_add+0x71c/0x1bc0 [ 2975.961097][T16194] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 2975.967097][T16194] ? uevent_show+0x360/0x360 [ 2975.971687][T16194] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 2975.977666][T16194] wiphy_register+0x1c46/0x2720 [ 2975.982501][T16194] ? wiphy_unregister+0xf90/0xf90 [ 2975.987508][T16194] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 2975.993212][T16194] ? retint_kernel+0x2b/0x2b [ 2975.997787][T16194] ? ieee80211_register_hw+0x1005/0x36a0 [ 2976.003412][T16194] ieee80211_register_hw+0x13d4/0x36a0 [ 2976.008861][T16194] ? calibrate_delay.cold+0x3db/0x3f6 [ 2976.014221][T16194] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 2976.019692][T16194] ? __hrtimer_init+0x134/0x260 [ 2976.024664][T16194] ? __hrtimer_init+0x191/0x260 [ 2976.029506][T16194] ? __hrtimer_init+0x134/0x260 [ 2976.034360][T16194] mac80211_hwsim_new_radio+0x222f/0x4490 [ 2976.040182][T16194] ? vprintk_func+0x81/0x17e [ 2976.044773][T16194] ? hwsim_register_received_nl+0x400/0x400 [ 2976.050655][T16194] hwsim_new_radio_nl+0x905/0xf60 [ 2976.055671][T16194] ? swapgs_restore_regs_and_return_to_usermode+0x40/0x40 [ 2976.062769][T16194] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 2976.068658][T16194] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 2976.074965][T16194] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 2976.081408][T16194] genl_rcv_msg+0x627/0xdf0 [ 2976.085917][T16194] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2976.092269][T16194] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 2976.098082][T16194] netlink_rcv_skb+0x15a/0x410 [ 2976.102832][T16194] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2976.109147][T16194] ? netlink_ack+0xa80/0xa80 [ 2976.113778][T16194] genl_rcv+0x24/0x40 [ 2976.117804][T16194] netlink_unicast+0x537/0x740 [ 2976.122554][T16194] ? netlink_attachskb+0x810/0x810 [ 2976.127653][T16194] ? _copy_from_iter_full+0x25c/0x870 [ 2976.133009][T16194] ? __phys_addr_symbol+0x2c/0x70 [ 2976.138050][T16194] ? __check_object_size+0x171/0x437 [ 2976.143322][T16194] netlink_sendmsg+0x882/0xe10 [ 2976.148131][T16194] ? aa_af_perm+0x260/0x260 [ 2976.152631][T16194] ? netlink_unicast+0x740/0x740 [ 2976.157576][T16194] ? netlink_unicast+0x740/0x740 [ 2976.162503][T16194] sock_sendmsg+0xcf/0x120 [ 2976.166906][T16194] ____sys_sendmsg+0x6b9/0x7d0 [ 2976.171693][T16194] ? kernel_sendmsg+0x50/0x50 [ 2976.176359][T16194] ? mark_lock+0xbc/0x1220 [ 2976.180759][T16194] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2976.186316][T16194] ___sys_sendmsg+0x100/0x170 [ 2976.191035][T16194] ? sendmsg_copy_msghdr+0x70/0x70 [ 2976.196135][T16194] ? __fget_files+0x329/0x4f0 [ 2976.200833][T16194] ? ksys_dup3+0x3c0/0x3c0 [ 2976.205228][T16194] ? lock_acquire+0x197/0x420 [ 2976.209888][T16194] ? __might_fault+0xef/0x1d0 [ 2976.214550][T16194] ? __fget_light+0x208/0x270 [ 2976.219227][T16194] __sys_sendmsg+0xec/0x1b0 [ 2976.223726][T16194] ? __sys_sendmsg_sock+0xb0/0xb0 [ 2976.228859][T16194] ? trace_hardirqs_off_caller+0x55/0x230 [ 2976.234565][T16194] ? do_syscall_64+0x21/0x7d0 [ 2976.239237][T16194] do_syscall_64+0xf6/0x7d0 [ 2976.243740][T16194] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 2976.249647][T16194] RIP: 0033:0x45c849 [ 2976.253522][T16194] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 2976.273111][T16194] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2976.281521][T16194] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 2976.289491][T16194] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 2976.297442][T16194] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 2976.305393][T16194] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 2976.313342][T16194] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 2976.340182][T16182] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2976.352068][T16182] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 2976.352068][T16182] !' [ 2976.378842][T16182] CPU: 0 PID: 16182 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 2976.387541][T16182] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2976.397597][T16182] Call Trace: [ 2976.400920][T16182] dump_stack+0x188/0x20d [ 2976.405245][T16182] sysfs_warn_dup.cold+0x1c/0x2d [ 2976.410170][T16182] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 2976.416224][T16182] sysfs_create_link+0x61/0xc0 [ 2976.420972][T16182] device_add+0x71c/0x1bc0 [ 2976.425374][T16182] ? uevent_show+0x360/0x360 [ 2976.429952][T16182] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 2976.435971][T16182] wiphy_register+0x1c46/0x2720 [ 2976.440820][T16182] ? wiphy_unregister+0xf90/0xf90 [ 2976.445835][T16182] ? __kmalloc+0x629/0x7a0 [ 2976.450246][T16182] ? ieee80211_register_hw+0xc0c/0x36a0 [ 2976.455800][T16182] ieee80211_register_hw+0x13d4/0x36a0 [ 2976.461252][T16182] ? __debug_object_init+0x4a1/0xe20 [ 2976.466537][T16182] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 2976.471983][T16182] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 2976.477515][T16182] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 2976.483481][T16182] ? memset+0x20/0x40 [ 2976.487443][T16182] ? __hrtimer_init+0x134/0x260 [ 2976.492282][T16182] mac80211_hwsim_new_radio+0x222f/0x4490 [ 2976.497987][T16182] ? vprintk_func+0x81/0x17e [ 2976.502566][T16182] ? hwsim_register_received_nl+0x400/0x400 [ 2976.508441][T16182] hwsim_new_radio_nl+0x905/0xf60 [ 2976.513446][T16182] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 2976.519328][T16182] ? cap_capable+0x1eb/0x250 [ 2976.523916][T16182] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 2976.530220][T16182] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 2976.536530][T16182] genl_rcv_msg+0x627/0xdf0 [ 2976.541020][T16182] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2976.547333][T16182] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2976.552652][T16182] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2976.558108][T16182] netlink_rcv_skb+0x15a/0x410 [ 2976.562852][T16182] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2976.569164][T16182] ? netlink_ack+0xa80/0xa80 [ 2976.573749][T16182] genl_rcv+0x24/0x40 [ 2976.577754][T16182] netlink_unicast+0x537/0x740 [ 2976.582518][T16182] ? netlink_attachskb+0x810/0x810 [ 2976.587616][T16182] ? _copy_from_iter_full+0x25c/0x870 [ 2976.593023][T16182] ? __phys_addr_symbol+0x2c/0x70 [ 2976.598039][T16182] ? __check_object_size+0x171/0x437 [ 2976.603331][T16182] netlink_sendmsg+0x882/0xe10 [ 2976.608140][T16182] ? aa_af_perm+0x260/0x260 [ 2976.612627][T16182] ? netlink_unicast+0x740/0x740 [ 2976.617570][T16182] ? netlink_unicast+0x740/0x740 [ 2976.622494][T16182] sock_sendmsg+0xcf/0x120 [ 2976.626908][T16182] ____sys_sendmsg+0x6b9/0x7d0 [ 2976.631658][T16182] ? kernel_sendmsg+0x50/0x50 [ 2976.636323][T16182] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2976.641767][T16182] ___sys_sendmsg+0x100/0x170 [ 2976.646427][T16182] ? sendmsg_copy_msghdr+0x70/0x70 [ 2976.651524][T16182] ? __fget_files+0x329/0x4f0 [ 2976.656182][T16182] ? ksys_dup3+0x3c0/0x3c0 [ 2976.660591][T16182] ? lock_acquire+0x197/0x420 [ 2976.665250][T16182] ? __might_fault+0xef/0x1d0 [ 2976.669910][T16182] ? __fget_light+0x208/0x270 [ 2976.674567][T16182] __sys_sendmsg+0xec/0x1b0 [ 2976.679051][T16182] ? __sys_sendmsg_sock+0xb0/0xb0 [ 2976.684065][T16182] ? __x64_sys_futex+0x380/0x4f0 [ 2976.689009][T16182] ? trace_hardirqs_off_caller+0x55/0x230 [ 2976.694726][T16182] ? do_syscall_64+0x21/0x7d0 [ 2976.699389][T16182] do_syscall_64+0xf6/0x7d0 [ 2976.703895][T16182] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 2976.709772][T16182] RIP: 0033:0x45c849 [ 2976.713654][T16182] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 2976.733250][T16182] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2976.741648][T16182] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 2976.749603][T16182] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 2976.757556][T16182] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 2976.765513][T16182] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 2976.773467][T16182] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 2976.794635][T16197] netlink: 'syz-executor.0': attribute type 8 has an invalid length. [ 2976.813961][T16197] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.0'. [ 2976.827073][T16197] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 2976.827073][T16197] !' [ 2976.842735][T16197] CPU: 1 PID: 16197 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 2976.851440][T16197] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2976.861502][T16197] Call Trace: [ 2976.864813][T16197] dump_stack+0x188/0x20d [ 2976.869164][T16197] sysfs_warn_dup.cold+0x1c/0x2d [ 2976.874116][T16197] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 2976.880173][T16197] sysfs_create_link+0x61/0xc0 [ 2976.884918][T16197] device_add+0x71c/0x1bc0 [ 2976.889329][T16197] ? uevent_show+0x360/0x360 [ 2976.893927][T16197] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 2976.899898][T16197] wiphy_register+0x1c46/0x2720 [ 2976.904736][T16197] ? wiphy_unregister+0xf90/0xf90 [ 2976.909760][T16197] ? __kmalloc+0x629/0x7a0 [ 2976.914229][T16197] ? ieee80211_register_hw+0xc0c/0x36a0 [ 2976.919783][T16197] ieee80211_register_hw+0x13d4/0x36a0 [ 2976.925241][T16197] ? __debug_object_init+0x4a1/0xe20 [ 2976.930523][T16197] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 2976.935970][T16197] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 2976.941497][T16197] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 2976.947593][T16197] ? memset+0x20/0x40 [ 2976.951651][T16197] ? __hrtimer_init+0x134/0x260 [ 2976.956489][T16197] mac80211_hwsim_new_radio+0x222f/0x4490 [ 2976.962268][T16197] ? vprintk_func+0x81/0x17e [ 2976.966850][T16197] ? hwsim_register_received_nl+0x400/0x400 [ 2976.972726][T16197] hwsim_new_radio_nl+0x905/0xf60 [ 2976.977779][T16197] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 2976.983651][T16197] ? cap_capable+0x1eb/0x250 [ 2976.988221][T16197] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 2976.994545][T16197] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 2977.000874][T16197] genl_rcv_msg+0x627/0xdf0 [ 2977.005367][T16197] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2977.011680][T16197] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2977.016948][T16197] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2977.022399][T16197] netlink_rcv_skb+0x15a/0x410 [ 2977.027145][T16197] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2977.033451][T16197] ? netlink_ack+0xa80/0xa80 [ 2977.038044][T16197] genl_rcv+0x24/0x40 [ 2977.042015][T16197] netlink_unicast+0x537/0x740 [ 2977.046780][T16197] ? netlink_attachskb+0x810/0x810 [ 2977.051872][T16197] ? _copy_from_iter_full+0x25c/0x870 [ 2977.057396][T16197] ? __phys_addr_symbol+0x2c/0x70 [ 2977.062404][T16197] ? __check_object_size+0x171/0x437 [ 2977.067711][T16197] netlink_sendmsg+0x882/0xe10 [ 2977.072462][T16197] ? aa_af_perm+0x260/0x260 [ 2977.076992][T16197] ? netlink_unicast+0x740/0x740 [ 2977.081918][T16197] ? netlink_unicast+0x740/0x740 [ 2977.086834][T16197] sock_sendmsg+0xcf/0x120 [ 2977.091233][T16197] ____sys_sendmsg+0x6b9/0x7d0 [ 2977.095973][T16197] ? kernel_sendmsg+0x50/0x50 [ 2977.100638][T16197] ? mark_lock+0xbc/0x1220 [ 2977.105047][T16197] ___sys_sendmsg+0x100/0x170 [ 2977.109822][T16197] ? sendmsg_copy_msghdr+0x70/0x70 [ 2977.114951][T16197] ? __fget_files+0x329/0x4f0 [ 2977.119615][T16197] ? ksys_dup3+0x3c0/0x3c0 [ 2977.124013][T16197] ? lock_acquire+0x197/0x420 [ 2977.128675][T16197] ? __might_fault+0xef/0x1d0 [ 2977.133335][T16197] ? __fget_light+0x208/0x270 [ 2977.138030][T16197] __sys_sendmsg+0xec/0x1b0 [ 2977.142517][T16197] ? __sys_sendmsg_sock+0xb0/0xb0 [ 2977.147530][T16197] ? do_syscall_64+0x4f/0x7d0 [ 2977.152189][T16197] do_syscall_64+0xf6/0x7d0 [ 2977.156675][T16197] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 2977.162550][T16197] RIP: 0033:0x45c849 [ 2977.166638][T16197] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 2977.186229][T16197] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2977.194621][T16197] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 2977.202573][T16197] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 2977.210524][T16197] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 2977.218472][T16197] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 2977.226426][T16197] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:42:09 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0435fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:11 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024020705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:11 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:11 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d046bfc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:11 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c78940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:11 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c75940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 2984.424430][T16209] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2984.458470][T16209] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 2984.458470][T16209] !' [ 2984.468763][T16209] CPU: 0 PID: 16209 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 2984.477440][T16209] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2984.487489][T16209] Call Trace: [ 2984.490828][T16209] dump_stack+0x188/0x20d [ 2984.495157][T16209] sysfs_warn_dup.cold+0x1c/0x2d [ 2984.500104][T16209] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 2984.506167][T16209] sysfs_create_link+0x61/0xc0 [ 2984.510918][T16209] device_add+0x71c/0x1bc0 [ 2984.515333][T16209] ? uevent_show+0x360/0x360 [ 2984.519913][T16209] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 2984.525894][T16209] wiphy_register+0x1c46/0x2720 [ 2984.530759][T16209] ? wiphy_unregister+0xf90/0xf90 [ 2984.535828][T16209] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 2984.541560][T16209] ? retint_kernel+0x2b/0x2b [ 2984.546151][T16209] ieee80211_register_hw+0x13d4/0x36a0 [ 2984.551602][T16209] ? calibrate_delay.cold+0x3db/0x3f6 [ 2984.556971][T16209] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 2984.562440][T16209] ? retint_kernel+0x2b/0x2b [ 2984.567071][T16209] ? __hrtimer_init+0x134/0x260 [ 2984.571912][T16209] mac80211_hwsim_new_radio+0x222f/0x4490 [ 2984.577617][T16209] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2984.582905][T16209] ? hwsim_register_received_nl+0x400/0x400 [ 2984.588891][T16209] ? hwsim_new_radio_nl+0x85f/0xf60 [ 2984.594083][T16209] hwsim_new_radio_nl+0x905/0xf60 [ 2984.599113][T16209] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2984.604562][T16209] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 2984.610438][T16209] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 2984.616213][T16209] genl_rcv_msg+0x627/0xdf0 [ 2984.620705][T16209] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2984.627018][T16209] ? mark_held_locks+0x9f/0xe0 [ 2984.631789][T16209] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2984.637246][T16209] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 2984.642953][T16209] ? retint_kernel+0x2b/0x2b [ 2984.647536][T16209] netlink_rcv_skb+0x15a/0x410 [ 2984.652287][T16209] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2984.658598][T16209] ? netlink_ack+0xa80/0xa80 [ 2984.663181][T16209] genl_rcv+0x24/0x40 [ 2984.667149][T16209] netlink_unicast+0x537/0x740 [ 2984.671914][T16209] ? netlink_attachskb+0x810/0x810 [ 2984.677009][T16209] ? _copy_from_iter_full+0x25c/0x870 [ 2984.682362][T16209] ? __phys_addr_symbol+0x2c/0x70 [ 2984.687376][T16209] ? __check_object_size+0x171/0x437 [ 2984.692658][T16209] netlink_sendmsg+0x882/0xe10 [ 2984.697420][T16209] ? aa_af_perm+0x260/0x260 [ 2984.701933][T16209] ? netlink_unicast+0x740/0x740 [ 2984.706958][T16209] ? netlink_unicast+0x740/0x740 [ 2984.711927][T16209] sock_sendmsg+0xcf/0x120 [ 2984.716336][T16209] ____sys_sendmsg+0x6b9/0x7d0 [ 2984.721098][T16209] ? kernel_sendmsg+0x50/0x50 [ 2984.725774][T16209] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2984.731227][T16209] ___sys_sendmsg+0x100/0x170 [ 2984.735957][T16209] ? sendmsg_copy_msghdr+0x70/0x70 [ 2984.741072][T16209] ? __fget_files+0x329/0x4f0 [ 2984.745735][T16209] ? ksys_dup3+0x3c0/0x3c0 [ 2984.750144][T16209] ? lock_acquire+0x197/0x420 [ 2984.754803][T16209] ? __might_fault+0xef/0x1d0 [ 2984.759509][T16209] ? __fget_light+0x208/0x270 [ 2984.764188][T16209] __sys_sendmsg+0xec/0x1b0 [ 2984.768697][T16209] ? __sys_sendmsg_sock+0xb0/0xb0 [ 2984.773714][T16209] ? __x64_sys_futex+0x380/0x4f0 [ 2984.778639][T16209] ? trace_hardirqs_off_caller+0x55/0x230 [ 2984.784347][T16209] ? do_syscall_64+0x21/0x7d0 [ 2984.789030][T16209] do_syscall_64+0xf6/0x7d0 [ 2984.793538][T16209] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 2984.799412][T16209] RIP: 0033:0x45c849 [ 2984.803292][T16209] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 2984.822886][T16209] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2984.831310][T16209] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 2984.839281][T16209] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 2984.847260][T16209] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 2984.855223][T16209] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 2984.863177][T16209] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 2984.887470][T16208] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.5'. [ 2984.911126][T16208] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 2984.911126][T16208] !' [ 2984.924460][T16208] CPU: 0 PID: 16208 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 2984.933176][T16208] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2984.943216][T16208] Call Trace: [ 2984.946544][T16208] dump_stack+0x188/0x20d [ 2984.950876][T16208] sysfs_warn_dup.cold+0x1c/0x2d [ 2984.955821][T16208] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 2984.961876][T16208] sysfs_create_link+0x61/0xc0 [ 2984.966635][T16208] device_add+0x71c/0x1bc0 [ 2984.971042][T16208] ? retint_kernel+0x2b/0x2b [ 2984.975619][T16208] ? uevent_show+0x360/0x360 [ 2984.980200][T16208] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 2984.986183][T16208] wiphy_register+0x1c46/0x2720 [ 2984.991044][T16208] ? wiphy_unregister+0xf90/0xf90 [ 2984.996095][T16208] ? ieee80211_cs_list_valid+0x19/0x280 [ 2985.001624][T16208] ? __sanitizer_cov_trace_pc+0x22/0x50 [ 2985.007153][T16208] ? ieee80211_register_hw+0x1efb/0x36a0 [ 2985.012786][T16208] ieee80211_register_hw+0x13d4/0x36a0 [ 2985.018228][T16208] ? __debug_object_init+0x4a1/0xe20 [ 2985.023509][T16208] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 2985.028978][T16208] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 2985.034526][T16208] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 2985.040498][T16208] ? memset+0x20/0x40 [ 2985.044464][T16208] ? __hrtimer_init+0x134/0x260 [ 2985.049311][T16208] mac80211_hwsim_new_radio+0x222f/0x4490 [ 2985.055049][T16208] ? vprintk_func+0x81/0x17e [ 2985.059678][T16208] ? hwsim_register_received_nl+0x400/0x400 [ 2985.065554][T16208] hwsim_new_radio_nl+0x905/0xf60 [ 2985.070556][T16208] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2985.075819][T16208] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 2985.081699][T16208] genl_rcv_msg+0x627/0xdf0 [ 2985.086187][T16208] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2985.092500][T16208] ? retint_kernel+0x2b/0x2b [ 2985.097079][T16208] netlink_rcv_skb+0x15a/0x410 [ 2985.101824][T16208] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2985.108134][T16208] ? netlink_ack+0xa80/0xa80 [ 2985.112709][T16208] genl_rcv+0x24/0x40 [ 2985.116671][T16208] netlink_unicast+0x537/0x740 [ 2985.121430][T16208] ? netlink_attachskb+0x810/0x810 [ 2985.126530][T16208] ? _copy_from_iter_full+0x25c/0x870 [ 2985.131896][T16208] ? __phys_addr_symbol+0x2c/0x70 [ 2985.136957][T16208] ? __check_object_size+0x171/0x437 [ 2985.142235][T16208] netlink_sendmsg+0x882/0xe10 [ 2985.146994][T16208] ? aa_af_perm+0x260/0x260 [ 2985.151483][T16208] ? netlink_unicast+0x740/0x740 [ 2985.156410][T16208] ? netlink_unicast+0x740/0x740 [ 2985.161331][T16208] sock_sendmsg+0xcf/0x120 [ 2985.165735][T16208] ____sys_sendmsg+0x6b9/0x7d0 [ 2985.170483][T16208] ? kernel_sendmsg+0x50/0x50 [ 2985.175142][T16208] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2985.180586][T16208] ___sys_sendmsg+0x100/0x170 [ 2985.185264][T16208] ? sendmsg_copy_msghdr+0x70/0x70 [ 2985.190398][T16208] ? __fget_files+0x329/0x4f0 [ 2985.195093][T16208] ? ksys_dup3+0x3c0/0x3c0 [ 2985.199545][T16208] ? lock_acquire+0x197/0x420 [ 2985.204225][T16208] ? __might_fault+0xef/0x1d0 [ 2985.208900][T16208] ? __fget_light+0x208/0x270 [ 2985.213580][T16208] __sys_sendmsg+0xec/0x1b0 [ 2985.218068][T16208] ? __sys_sendmsg_sock+0xb0/0xb0 [ 2985.223081][T16208] ? retint_kernel+0x2b/0x2b [ 2985.227660][T16208] ? __x64_sys_sendmsg+0xd/0xb0 [ 2985.232495][T16208] ? __sanitizer_cov_trace_pc+0x1c/0x50 [ 2985.238025][T16208] do_syscall_64+0xf6/0x7d0 [ 2985.242517][T16208] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 2985.248399][T16208] RIP: 0033:0x45c849 [ 2985.252298][T16208] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 2985.271881][T16208] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2985.280274][T16208] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 23:42:12 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d046cfc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 2985.288226][T16208] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 2985.296178][T16208] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 2985.304141][T16208] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 2985.312268][T16208] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 2985.354334][T16207] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.0'. [ 2985.374797][T16207] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 2985.374797][T16207] !' [ 2985.387222][T16207] CPU: 1 PID: 16207 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 23:42:12 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 2985.395920][T16207] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2985.405980][T16207] Call Trace: [ 2985.409277][T16207] dump_stack+0x188/0x20d [ 2985.413638][T16207] sysfs_warn_dup.cold+0x1c/0x2d [ 2985.418594][T16207] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 2985.424678][T16207] sysfs_create_link+0x61/0xc0 [ 2985.429457][T16207] device_add+0x71c/0x1bc0 [ 2985.433933][T16207] ? uevent_show+0x360/0x360 [ 2985.438527][T16207] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 2985.444559][T16207] wiphy_register+0x1c46/0x2720 [ 2985.449408][T16207] ? wiphy_unregister+0xf90/0xf90 [ 2985.454416][T16207] ? __kmalloc+0x629/0x7a0 [ 2985.458830][T16207] ? ieee80211_register_hw+0xc0c/0x36a0 [ 2985.464360][T16207] ieee80211_register_hw+0x13d4/0x36a0 [ 2985.469802][T16207] ? __debug_object_init+0x4a1/0xe20 [ 2985.475073][T16207] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 2985.480534][T16207] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 2985.486061][T16207] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 2985.492043][T16207] ? memset+0x20/0x40 [ 2985.496017][T16207] ? __hrtimer_init+0x134/0x260 [ 2985.500852][T16207] mac80211_hwsim_new_radio+0x222f/0x4490 [ 2985.506565][T16207] ? vprintk_func+0x81/0x17e [ 2985.511173][T16207] ? hwsim_register_received_nl+0x400/0x400 [ 2985.517076][T16207] hwsim_new_radio_nl+0x905/0xf60 [ 2985.522108][T16207] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 2985.527994][T16207] ? cap_capable+0x1eb/0x250 [ 2985.532585][T16207] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 2985.538944][T16207] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 2985.545265][T16207] genl_rcv_msg+0x627/0xdf0 [ 2985.549756][T16207] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2985.556069][T16207] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 2985.561786][T16207] netlink_rcv_skb+0x15a/0x410 [ 2985.566567][T16207] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2985.572889][T16207] ? netlink_ack+0xa80/0xa80 [ 2985.577471][T16207] genl_rcv+0x24/0x40 [ 2985.581542][T16207] netlink_unicast+0x537/0x740 [ 2985.586354][T16207] ? netlink_attachskb+0x810/0x810 [ 2985.591465][T16207] ? _copy_from_iter_full+0x25c/0x870 [ 2985.596839][T16207] ? __phys_addr_symbol+0x2c/0x70 [ 2985.601865][T16207] ? __check_object_size+0x171/0x437 [ 2985.607158][T16207] netlink_sendmsg+0x882/0xe10 [ 2985.611910][T16207] ? aa_af_perm+0x260/0x260 [ 2985.616413][T16207] ? netlink_unicast+0x740/0x740 [ 2985.621352][T16207] ? netlink_unicast+0x740/0x740 [ 2985.626316][T16207] sock_sendmsg+0xcf/0x120 [ 2985.630720][T16207] ____sys_sendmsg+0x6b9/0x7d0 [ 2985.635478][T16207] ? kernel_sendmsg+0x50/0x50 [ 2985.640209][T16207] ? retint_kernel+0x2b/0x2b [ 2985.644786][T16207] ___sys_sendmsg+0x100/0x170 [ 2985.649445][T16207] ? sendmsg_copy_msghdr+0x70/0x70 [ 2985.654645][T16207] ? __fget_files+0x329/0x4f0 [ 2985.659326][T16207] ? ksys_dup3+0x3c0/0x3c0 [ 2985.663745][T16207] ? lock_acquire+0x197/0x420 [ 2985.668406][T16207] ? __might_fault+0xef/0x1d0 [ 2985.673113][T16207] ? __fget_light+0x208/0x270 [ 2985.677780][T16207] __sys_sendmsg+0xec/0x1b0 [ 2985.682268][T16207] ? __sys_sendmsg_sock+0xb0/0xb0 [ 2985.687274][T16207] ? __x64_sys_futex+0x380/0x4f0 [ 2985.692201][T16207] ? trace_hardirqs_off_caller+0x55/0x230 [ 2985.697915][T16207] ? do_syscall_64+0x21/0x7d0 [ 2985.702589][T16207] do_syscall_64+0xf6/0x7d0 [ 2985.707086][T16207] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 2985.712962][T16207] RIP: 0033:0x45c849 [ 2985.716834][T16207] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 2985.736416][T16207] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2985.744820][T16207] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 23:42:12 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d046bfc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 2985.752774][T16207] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 2985.760725][T16207] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 2985.768674][T16207] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 2985.776636][T16207] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 2985.792368][T16213] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2985.816474][T16213] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 2985.816474][T16213] !' [ 2985.827214][T16213] CPU: 1 PID: 16213 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 2985.835900][T16213] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2985.845960][T16213] Call Trace: [ 2985.849259][T16213] dump_stack+0x188/0x20d [ 2985.853590][T16213] sysfs_warn_dup.cold+0x1c/0x2d [ 2985.858543][T16213] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 2985.864623][T16213] sysfs_create_link+0x61/0xc0 [ 2985.869396][T16213] device_add+0x71c/0x1bc0 [ 2985.873820][T16213] ? uevent_show+0x360/0x360 [ 2985.878420][T16213] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 2985.884413][T16213] wiphy_register+0x1c46/0x2720 [ 2985.889279][T16213] ? wiphy_unregister+0xf90/0xf90 [ 2985.894309][T16213] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 2985.900094][T16213] ? retint_kernel+0x2b/0x2b [ 2985.904693][T16213] ? ieee80211_register_hw+0xc4a/0x36a0 [ 2985.910267][T16213] ieee80211_register_hw+0x13d4/0x36a0 23:42:13 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d046bfc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 2985.915724][T16213] ? __debug_object_init+0x4a1/0xe20 [ 2985.921016][T16213] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 2985.926472][T16213] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 2985.932013][T16213] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 2985.938002][T16213] ? memset+0x20/0x40 [ 2985.941990][T16213] ? __hrtimer_init+0x134/0x260 [ 2985.946849][T16213] mac80211_hwsim_new_radio+0x222f/0x4490 [ 2985.952578][T16213] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2985.957878][T16213] ? hwsim_register_received_nl+0x400/0x400 [ 2985.963789][T16213] hwsim_new_radio_nl+0x905/0xf60 [ 2985.968826][T16213] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2985.974297][T16213] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 2985.980194][T16213] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 2985.985918][T16213] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 2985.992254][T16213] genl_rcv_msg+0x627/0xdf0 [ 2985.996778][T16213] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2986.003136][T16213] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2986.008436][T16213] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2986.013911][T16213] netlink_rcv_skb+0x15a/0x410 [ 2986.018696][T16213] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2986.025075][T16213] ? netlink_ack+0xa80/0xa80 [ 2986.029694][T16213] genl_rcv+0x24/0x40 [ 2986.033691][T16213] netlink_unicast+0x537/0x740 [ 2986.038468][T16213] ? netlink_attachskb+0x810/0x810 [ 2986.043589][T16213] ? _copy_from_iter_full+0x25c/0x870 [ 2986.048958][T16213] ? __phys_addr_symbol+0x2c/0x70 [ 2986.053972][T16213] ? __check_object_size+0x171/0x437 [ 2986.059248][T16213] netlink_sendmsg+0x882/0xe10 [ 2986.064000][T16213] ? aa_af_perm+0x260/0x260 [ 2986.068483][T16213] ? netlink_unicast+0x740/0x740 [ 2986.073453][T16213] ? netlink_unicast+0x740/0x740 [ 2986.078386][T16213] sock_sendmsg+0xcf/0x120 [ 2986.082802][T16213] ____sys_sendmsg+0x6b9/0x7d0 [ 2986.087558][T16213] ? kernel_sendmsg+0x50/0x50 [ 2986.092221][T16213] ? mark_lock+0xbc/0x1220 [ 2986.096679][T16213] ___sys_sendmsg+0x100/0x170 [ 2986.101355][T16213] ? sendmsg_copy_msghdr+0x70/0x70 [ 2986.106464][T16213] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2986.111906][T16213] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2986.117174][T16213] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2986.122633][T16213] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 2986.128414][T16213] ? retint_kernel+0x2b/0x2b [ 2986.132991][T16213] ? sockfd_lookup_light+0x73/0x170 [ 2986.138225][T16213] ? sockfd_lookup_light+0x9c/0x170 [ 2986.143426][T16213] __sys_sendmsg+0xec/0x1b0 [ 2986.148097][T16213] ? __sys_sendmsg_sock+0xb0/0xb0 [ 2986.153118][T16213] ? __x64_sys_futex+0x380/0x4f0 [ 2986.158055][T16213] ? trace_hardirqs_off_caller+0x55/0x230 [ 2986.163769][T16213] ? do_syscall_64+0x21/0x7d0 [ 2986.168481][T16213] do_syscall_64+0xf6/0x7d0 [ 2986.172995][T16213] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 2986.178873][T16213] RIP: 0033:0x45c849 [ 2986.182751][T16213] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 2986.202348][T16213] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2986.210751][T16213] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 2986.218720][T16213] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 2986.226697][T16213] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 2986.234659][T16213] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 2986.242614][T16213] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 2986.268252][T16215] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.5'. [ 2986.281216][T16215] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 2986.281216][T16215] !' [ 2986.291489][T16215] CPU: 1 PID: 16215 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 2986.300179][T16215] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2986.310236][T16215] Call Trace: [ 2986.313531][T16215] dump_stack+0x188/0x20d [ 2986.317857][T16215] sysfs_warn_dup.cold+0x1c/0x2d [ 2986.322797][T16215] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 2986.328866][T16215] sysfs_create_link+0x61/0xc0 [ 2986.333616][T16215] device_add+0x71c/0x1bc0 [ 2986.338016][T16215] ? uevent_show+0x360/0x360 [ 2986.342601][T16215] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 2986.348586][T16215] wiphy_register+0x1c46/0x2720 [ 2986.353421][T16215] ? wiphy_unregister+0xf90/0xf90 [ 2986.358502][T16215] ? __kmalloc+0x629/0x7a0 [ 2986.362913][T16215] ? ieee80211_register_hw+0xc0c/0x36a0 [ 2986.368454][T16215] ieee80211_register_hw+0x13d4/0x36a0 [ 2986.373900][T16215] ? __debug_object_init+0x4a1/0xe20 [ 2986.379190][T16215] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 2986.384661][T16215] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 2986.390211][T16215] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 2986.396200][T16215] ? memset+0x20/0x40 [ 2986.400192][T16215] ? __hrtimer_init+0x134/0x260 [ 2986.405064][T16215] mac80211_hwsim_new_radio+0x222f/0x4490 [ 2986.410796][T16215] ? vprintk_func+0x81/0x17e [ 2986.415410][T16215] ? hwsim_register_received_nl+0x400/0x400 [ 2986.421672][T16215] hwsim_new_radio_nl+0x905/0xf60 [ 2986.426715][T16215] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 2986.432621][T16215] ? cap_capable+0x1eb/0x250 [ 2986.437277][T16215] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 2986.443643][T16215] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 2986.449971][T16215] genl_rcv_msg+0x627/0xdf0 [ 2986.454483][T16215] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2986.460806][T16215] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2986.466093][T16215] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2986.471580][T16215] netlink_rcv_skb+0x15a/0x410 [ 2986.476348][T16215] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2986.482680][T16215] ? netlink_ack+0xa80/0xa80 [ 2986.487279][T16215] genl_rcv+0x24/0x40 [ 2986.491269][T16215] netlink_unicast+0x537/0x740 [ 2986.496041][T16215] ? netlink_attachskb+0x810/0x810 [ 2986.501146][T16215] ? _copy_from_iter_full+0x25c/0x870 [ 2986.506517][T16215] ? __phys_addr_symbol+0x2c/0x70 [ 2986.511711][T16215] ? __check_object_size+0x171/0x437 [ 2986.517010][T16215] netlink_sendmsg+0x882/0xe10 [ 2986.521792][T16215] ? aa_af_perm+0x260/0x260 [ 2986.526306][T16215] ? netlink_unicast+0x740/0x740 [ 2986.531266][T16215] ? netlink_unicast+0x740/0x740 [ 2986.536218][T16215] sock_sendmsg+0xcf/0x120 [ 2986.540634][T16215] ____sys_sendmsg+0x6b9/0x7d0 [ 2986.545396][T16215] ? kernel_sendmsg+0x50/0x50 [ 2986.550068][T16215] ? mark_lock+0xbc/0x1220 [ 2986.554529][T16215] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2986.560000][T16215] ___sys_sendmsg+0x100/0x170 [ 2986.564721][T16215] ? sendmsg_copy_msghdr+0x70/0x70 [ 2986.569841][T16215] ? __fget_files+0x329/0x4f0 [ 2986.574520][T16215] ? ksys_dup3+0x3c0/0x3c0 [ 2986.578932][T16215] ? lock_acquire+0x197/0x420 [ 2986.583607][T16215] ? __might_fault+0xef/0x1d0 [ 2986.588281][T16215] ? __fget_light+0x208/0x270 [ 2986.592946][T16215] __sys_sendmsg+0xec/0x1b0 [ 2986.597444][T16215] ? __sys_sendmsg_sock+0xb0/0xb0 [ 2986.602462][T16215] ? __x64_sys_futex+0x380/0x4f0 [ 2986.607453][T16215] ? trace_hardirqs_off_caller+0x55/0x230 [ 2986.613158][T16215] ? do_syscall_64+0x21/0x7d0 [ 2986.617817][T16215] do_syscall_64+0xf6/0x7d0 [ 2986.622323][T16215] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 2986.628208][T16215] RIP: 0033:0x45c849 [ 2986.632083][T16215] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 2986.651672][T16215] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2986.660077][T16215] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 2986.668139][T16215] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 2986.676230][T16215] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 2986.684201][T16215] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 2986.692158][T16215] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 2986.703388][T16222] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.0'. 23:42:13 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c73940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 2986.738910][T16222] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 2986.738910][T16222] !' [ 2986.754734][T16222] CPU: 1 PID: 16222 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 2986.763435][T16222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2986.773501][T16222] Call Trace: [ 2986.776795][T16222] dump_stack+0x188/0x20d [ 2986.781111][T16222] sysfs_warn_dup.cold+0x1c/0x2d [ 2986.786044][T16222] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 2986.792094][T16222] sysfs_create_link+0x61/0xc0 [ 2986.796978][T16222] device_add+0x71c/0x1bc0 [ 2986.801400][T16222] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 2986.807430][T16222] ? uevent_show+0x360/0x360 [ 2986.812011][T16222] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 2986.817993][T16222] wiphy_register+0x1c46/0x2720 [ 2986.822840][T16222] ? wiphy_unregister+0xf90/0xf90 [ 2986.827847][T16222] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 2986.833567][T16222] ? retint_kernel+0x2b/0x2b [ 2986.838158][T16222] ? ieee80211_register_hw+0x11f4/0x36a0 [ 2986.843778][T16222] ieee80211_register_hw+0x13d4/0x36a0 [ 2986.849226][T16222] ? __debug_object_init+0x4a1/0xe20 [ 2986.854509][T16222] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 2986.859955][T16222] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 2986.865484][T16222] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 2986.871448][T16222] ? memset+0x20/0x40 [ 2986.875411][T16222] ? __hrtimer_init+0x134/0x260 [ 2986.880247][T16222] mac80211_hwsim_new_radio+0x222f/0x4490 [ 2986.885964][T16222] ? hwsim_register_received_nl+0x400/0x400 [ 2986.891840][T16222] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2986.897107][T16222] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2986.902563][T16222] hwsim_new_radio_nl+0x905/0xf60 [ 2986.907575][T16222] ? retint_kernel+0x2b/0x2b [ 2986.912151][T16222] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 2986.918042][T16222] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 2986.924377][T16222] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 2986.930696][T16222] genl_rcv_msg+0x627/0xdf0 [ 2986.935185][T16222] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2986.941506][T16222] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 2986.947300][T16222] netlink_rcv_skb+0x15a/0x410 [ 2986.952058][T16222] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2986.958367][T16222] ? netlink_ack+0xa80/0xa80 [ 2986.962946][T16222] genl_rcv+0x24/0x40 [ 2986.966912][T16222] netlink_unicast+0x537/0x740 [ 2986.971662][T16222] ? netlink_attachskb+0x810/0x810 [ 2986.976750][T16222] ? _copy_from_iter_full+0x25c/0x870 [ 2986.982122][T16222] ? __phys_addr_symbol+0x2c/0x70 [ 2986.987151][T16222] ? __check_object_size+0x171/0x437 [ 2986.992418][T16222] netlink_sendmsg+0x882/0xe10 [ 2986.997167][T16222] ? aa_af_perm+0x260/0x260 [ 2987.001703][T16222] ? netlink_unicast+0x740/0x740 [ 2987.006640][T16222] ? netlink_unicast+0x740/0x740 [ 2987.011569][T16222] sock_sendmsg+0xcf/0x120 [ 2987.015969][T16222] ____sys_sendmsg+0x6b9/0x7d0 [ 2987.020726][T16222] ? kernel_sendmsg+0x50/0x50 [ 2987.025398][T16222] ? mark_lock+0xbc/0x1220 [ 2987.029817][T16222] ___sys_sendmsg+0x100/0x170 [ 2987.034491][T16222] ? sendmsg_copy_msghdr+0x70/0x70 [ 2987.039651][T16222] ? __fget_files+0x329/0x4f0 [ 2987.044336][T16222] ? ksys_dup3+0x3c0/0x3c0 [ 2987.048731][T16222] ? lock_acquire+0x197/0x420 [ 2987.053392][T16222] ? __might_fault+0xef/0x1d0 [ 2987.058146][T16222] ? __fget_light+0x208/0x270 [ 2987.062819][T16222] __sys_sendmsg+0xec/0x1b0 [ 2987.067317][T16222] ? __sys_sendmsg_sock+0xb0/0xb0 [ 2987.072326][T16222] ? __x64_sys_clock_gettime+0x11c/0x240 [ 2987.077954][T16222] ? trace_hardirqs_off_caller+0x55/0x230 [ 2987.083701][T16222] ? do_syscall_64+0x21/0x7d0 [ 2987.088402][T16222] do_syscall_64+0xf6/0x7d0 [ 2987.092894][T16222] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 2987.098767][T16222] RIP: 0033:0x45c849 [ 2987.102646][T16222] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 2987.122236][T16222] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2987.130634][T16222] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 2987.138591][T16222] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 2987.146547][T16222] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 2987.154506][T16222] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 2987.162470][T16222] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 2987.188445][T16223] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2987.201491][T16223] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 2987.201491][T16223] !' [ 2987.211638][T16223] CPU: 1 PID: 16223 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 2987.220331][T16223] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2987.230400][T16223] Call Trace: [ 2987.233791][T16223] dump_stack+0x188/0x20d [ 2987.238137][T16223] sysfs_warn_dup.cold+0x1c/0x2d [ 2987.243074][T16223] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 2987.249151][T16223] sysfs_create_link+0x61/0xc0 [ 2987.253933][T16223] device_add+0x71c/0x1bc0 [ 2987.258348][T16223] ? uevent_show+0x360/0x360 [ 2987.262949][T16223] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 2987.268930][T16223] wiphy_register+0x1c46/0x2720 [ 2987.273781][T16223] ? wiphy_unregister+0xf90/0xf90 [ 2987.278814][T16223] ? __kmalloc+0x629/0x7a0 [ 2987.283224][T16223] ? ieee80211_register_hw+0xc0c/0x36a0 [ 2987.288774][T16223] ieee80211_register_hw+0x13d4/0x36a0 [ 2987.294238][T16223] ? __debug_object_init+0x4a1/0xe20 [ 2987.299524][T16223] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 2987.304969][T16223] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 2987.310500][T16223] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 2987.316488][T16223] ? memset+0x20/0x40 [ 2987.320462][T16223] ? __hrtimer_init+0x134/0x260 [ 2987.325304][T16223] mac80211_hwsim_new_radio+0x222f/0x4490 [ 2987.331011][T16223] ? vprintk_func+0x81/0x17e [ 2987.335600][T16223] ? hwsim_register_received_nl+0x400/0x400 [ 2987.341483][T16223] hwsim_new_radio_nl+0x905/0xf60 [ 2987.346495][T16223] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 2987.352382][T16223] ? cap_capable+0x1eb/0x250 [ 2987.356963][T16223] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 2987.363271][T16223] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 2987.369594][T16223] genl_rcv_msg+0x627/0xdf0 [ 2987.374098][T16223] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2987.380424][T16223] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2987.385698][T16223] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2987.391142][T16223] netlink_rcv_skb+0x15a/0x410 [ 2987.395889][T16223] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2987.402198][T16223] ? netlink_ack+0xa80/0xa80 [ 2987.406778][T16223] genl_rcv+0x24/0x40 [ 2987.410742][T16223] netlink_unicast+0x537/0x740 [ 2987.415502][T16223] ? netlink_attachskb+0x810/0x810 [ 2987.420593][T16223] ? _copy_from_iter_full+0x25c/0x870 [ 2987.425946][T16223] ? __phys_addr_symbol+0x2c/0x70 [ 2987.430954][T16223] ? __check_object_size+0x171/0x437 [ 2987.436223][T16223] netlink_sendmsg+0x882/0xe10 [ 2987.440972][T16223] ? aa_af_perm+0x260/0x260 [ 2987.445459][T16223] ? netlink_unicast+0x740/0x740 [ 2987.450385][T16223] ? netlink_unicast+0x740/0x740 [ 2987.455307][T16223] sock_sendmsg+0xcf/0x120 [ 2987.459811][T16223] ____sys_sendmsg+0x6b9/0x7d0 [ 2987.464589][T16223] ? kernel_sendmsg+0x50/0x50 [ 2987.469277][T16223] ? mark_lock+0xbc/0x1220 [ 2987.473701][T16223] ___sys_sendmsg+0x100/0x170 [ 2987.478373][T16223] ? sendmsg_copy_msghdr+0x70/0x70 [ 2987.483484][T16223] ? __fget_files+0x329/0x4f0 [ 2987.488243][T16223] ? ksys_dup3+0x3c0/0x3c0 [ 2987.492641][T16223] ? lock_acquire+0x197/0x420 [ 2987.497298][T16223] ? __might_fault+0xef/0x1d0 [ 2987.501962][T16223] ? __fget_light+0x208/0x270 [ 2987.506628][T16223] __sys_sendmsg+0xec/0x1b0 [ 2987.511116][T16223] ? __sys_sendmsg_sock+0xb0/0xb0 [ 2987.516122][T16223] ? __x64_sys_futex+0x380/0x4f0 [ 2987.521053][T16223] ? trace_hardirqs_off_caller+0x55/0x230 [ 2987.526754][T16223] ? do_syscall_64+0x21/0x7d0 [ 2987.531415][T16223] do_syscall_64+0xf6/0x7d0 [ 2987.535911][T16223] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 2987.541784][T16223] RIP: 0033:0x45c849 [ 2987.545664][T16223] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 2987.565247][T16223] RSP: 002b:00007fce66789c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2987.573655][T16223] RAX: ffffffffffffffda RBX: 00007fce6678a6d4 RCX: 000000000045c849 [ 2987.581627][T16223] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 2987.589589][T16223] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 2987.597557][T16223] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 2987.605518][T16223] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac 23:42:14 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d046bfc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 2987.633104][T16227] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.5'. [ 2987.657397][T16227] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 2987.657397][T16227] !' [ 2987.702509][T16227] CPU: 0 PID: 16227 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 2987.711240][T16227] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2987.721300][T16227] Call Trace: [ 2987.724601][T16227] dump_stack+0x188/0x20d [ 2987.728947][T16227] sysfs_warn_dup.cold+0x1c/0x2d [ 2987.733907][T16227] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 2987.740139][T16227] sysfs_create_link+0x61/0xc0 [ 2987.744897][T16227] device_add+0x71c/0x1bc0 [ 2987.749311][T16227] ? uevent_show+0x360/0x360 [ 2987.753888][T16227] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 2987.759903][T16227] wiphy_register+0x1c46/0x2720 [ 2987.764778][T16227] ? wiphy_unregister+0xf90/0xf90 [ 2987.769830][T16227] ? __kmalloc+0x629/0x7a0 [ 2987.774317][T16227] ? ieee80211_register_hw+0xc0c/0x36a0 [ 2987.779852][T16227] ieee80211_register_hw+0x13d4/0x36a0 [ 2987.785297][T16227] ? __debug_object_init+0x4a1/0xe20 [ 2987.790580][T16227] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 2987.796033][T16227] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 2987.801573][T16227] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 2987.807541][T16227] ? memset+0x20/0x40 [ 2987.811507][T16227] ? __hrtimer_init+0x134/0x260 [ 2987.816353][T16227] mac80211_hwsim_new_radio+0x222f/0x4490 [ 2987.822056][T16227] ? vprintk_func+0x81/0x17e [ 2987.826635][T16227] ? hwsim_register_received_nl+0x400/0x400 [ 2987.832512][T16227] hwsim_new_radio_nl+0x905/0xf60 [ 2987.837522][T16227] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 2987.843396][T16227] ? cap_capable+0x1eb/0x250 [ 2987.847972][T16227] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 2987.854319][T16227] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 2987.860630][T16227] genl_rcv_msg+0x627/0xdf0 [ 2987.865117][T16227] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2987.871475][T16227] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2987.876796][T16227] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2987.882249][T16227] netlink_rcv_skb+0x15a/0x410 [ 2987.886995][T16227] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2987.893310][T16227] ? netlink_ack+0xa80/0xa80 [ 2987.897939][T16227] genl_rcv+0x24/0x40 [ 2987.901915][T16227] netlink_unicast+0x537/0x740 [ 2987.906673][T16227] ? netlink_attachskb+0x810/0x810 [ 2987.911761][T16227] ? _copy_from_iter_full+0x25c/0x870 [ 2987.917109][T16227] ? __phys_addr_symbol+0x2c/0x70 [ 2987.922116][T16227] ? __check_object_size+0x171/0x437 [ 2987.927394][T16227] netlink_sendmsg+0x882/0xe10 [ 2987.932155][T16227] ? aa_af_perm+0x260/0x260 [ 2987.936669][T16227] ? netlink_unicast+0x740/0x740 [ 2987.941620][T16227] ? netlink_unicast+0x740/0x740 [ 2987.946539][T16227] sock_sendmsg+0xcf/0x120 [ 2987.952724][T16227] ____sys_sendmsg+0x6b9/0x7d0 [ 2987.957472][T16227] ? kernel_sendmsg+0x50/0x50 [ 2987.962128][T16227] ? mark_lock+0xbc/0x1220 [ 2987.966531][T16227] ___sys_sendmsg+0x100/0x170 [ 2987.971189][T16227] ? sendmsg_copy_msghdr+0x70/0x70 [ 2987.976324][T16227] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2987.981765][T16227] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2987.987044][T16227] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2987.992492][T16227] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 2987.998204][T16227] ? retint_kernel+0x2b/0x2b [ 2988.002822][T16227] __sys_sendmsg+0xec/0x1b0 [ 2988.007333][T16227] ? __sys_sendmsg_sock+0xb0/0xb0 [ 2988.012354][T16227] ? __x64_sys_futex+0x380/0x4f0 [ 2988.017281][T16227] ? trace_hardirqs_off_caller+0x55/0x230 [ 2988.023000][T16227] ? do_syscall_64+0x21/0x7d0 [ 2988.027774][T16227] do_syscall_64+0xf6/0x7d0 [ 2988.032272][T16227] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 2988.038143][T16227] RIP: 0033:0x45c849 [ 2988.042028][T16227] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 2988.061621][T16227] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2988.070013][T16227] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 2988.077979][T16227] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 2988.085930][T16227] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 2988.093880][T16227] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 2988.101846][T16227] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 2988.150696][T16230] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.0'. [ 2988.174084][T16230] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 2988.174084][T16230] !' [ 2988.184287][T16230] CPU: 1 PID: 16230 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 2988.192969][T16230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 2988.203197][T16230] Call Trace: [ 2988.206490][T16230] dump_stack+0x188/0x20d [ 2988.210809][T16230] sysfs_warn_dup.cold+0x1c/0x2d [ 2988.215741][T16230] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 2988.221821][T16230] sysfs_create_link+0x61/0xc0 [ 2988.226582][T16230] device_add+0x71c/0x1bc0 [ 2988.230986][T16230] ? __sanitizer_cov_trace_switch+0xe/0x70 [ 2988.236782][T16230] ? uevent_show+0x360/0x360 [ 2988.241390][T16230] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 2988.247373][T16230] wiphy_register+0x1c46/0x2720 [ 2988.252219][T16230] ? wiphy_unregister+0xf90/0xf90 [ 2988.257271][T16230] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 2988.262997][T16230] ? retint_kernel+0x2b/0x2b [ 2988.267590][T16230] ? ieee80211_register_hw+0x1005/0x36a0 [ 2988.273208][T16230] ieee80211_register_hw+0x13d4/0x36a0 [ 2988.278760][T16230] ? calibrate_delay.cold+0x3db/0x3f6 [ 2988.284184][T16230] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 2988.289643][T16230] ? __hrtimer_init+0xef/0x260 [ 2988.294389][T16230] ? __sanitizer_cov_trace_pc+0x37/0x50 [ 2988.300027][T16230] ? __hrtimer_init+0x134/0x260 [ 2988.304887][T16230] mac80211_hwsim_new_radio+0x222f/0x4490 [ 2988.310597][T16230] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2988.315879][T16230] ? hwsim_register_received_nl+0x400/0x400 [ 2988.321782][T16230] hwsim_new_radio_nl+0x905/0xf60 [ 2988.326823][T16230] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 2988.332700][T16230] ? cap_capable+0x1eb/0x250 [ 2988.337282][T16230] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 2988.343610][T16230] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 2988.349943][T16230] genl_rcv_msg+0x627/0xdf0 [ 2988.354443][T16230] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2988.360782][T16230] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2988.366069][T16230] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2988.371523][T16230] netlink_rcv_skb+0x15a/0x410 [ 2988.376272][T16230] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 2988.382608][T16230] ? netlink_ack+0xa80/0xa80 [ 2988.387209][T16230] genl_rcv+0x24/0x40 [ 2988.391183][T16230] netlink_unicast+0x537/0x740 [ 2988.395948][T16230] ? netlink_attachskb+0x810/0x810 [ 2988.401072][T16230] ? _copy_from_iter_full+0x25c/0x870 [ 2988.406439][T16230] ? __phys_addr_symbol+0x2c/0x70 [ 2988.411461][T16230] ? __check_object_size+0x171/0x437 [ 2988.416742][T16230] netlink_sendmsg+0x882/0xe10 [ 2988.421510][T16230] ? aa_af_perm+0x260/0x260 [ 2988.426009][T16230] ? netlink_unicast+0x740/0x740 [ 2988.430935][T16230] ? netlink_unicast+0x740/0x740 [ 2988.435862][T16230] sock_sendmsg+0xcf/0x120 [ 2988.440292][T16230] ____sys_sendmsg+0x6b9/0x7d0 [ 2988.445052][T16230] ? kernel_sendmsg+0x50/0x50 [ 2988.449710][T16230] ? mark_lock+0xbc/0x1220 [ 2988.454116][T16230] ___sys_sendmsg+0x100/0x170 [ 2988.458784][T16230] ? sendmsg_copy_msghdr+0x70/0x70 [ 2988.463894][T16230] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2988.469353][T16230] ? lockdep_hardirqs_on+0x417/0x5d0 [ 2988.474649][T16230] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2988.480122][T16230] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 2988.485835][T16230] ? retint_kernel+0x2b/0x2b [ 2988.490411][T16230] ? sockfd_lookup_light+0x73/0x170 [ 2988.495612][T16230] ? sockfd_lookup_light+0x9c/0x170 [ 2988.500809][T16230] __sys_sendmsg+0xec/0x1b0 [ 2988.505334][T16230] ? __sys_sendmsg_sock+0xb0/0xb0 [ 2988.510363][T16230] ? __x64_sys_futex+0x380/0x4f0 [ 2988.515318][T16230] ? trace_hardirqs_off_caller+0x55/0x230 [ 2988.521049][T16230] ? do_syscall_64+0x21/0x7d0 [ 2988.525737][T16230] do_syscall_64+0xf6/0x7d0 [ 2988.530243][T16230] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 2988.536141][T16230] RIP: 0033:0x45c849 [ 2988.540024][T16230] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 2988.559614][T16230] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2988.568014][T16230] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 2988.575980][T16230] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 2988.583933][T16230] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 2988.591887][T16230] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 2988.599856][T16230] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:42:28 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0435fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:29 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024030705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:29 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0471fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:29 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:29 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c75940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:29 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c6f940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3002.019593][T16245] netlink: 'syz-executor.0': attribute type 8 has an invalid length. [ 3002.032534][T16245] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3002.043852][T16245] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3002.043852][T16245] !' [ 3002.056346][T16245] CPU: 1 PID: 16245 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3002.065035][T16245] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3002.075133][T16245] Call Trace: [ 3002.078413][T16245] dump_stack+0x188/0x20d [ 3002.082744][T16245] sysfs_warn_dup.cold+0x1c/0x2d [ 3002.087693][T16245] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3002.093787][T16245] sysfs_create_link+0x61/0xc0 [ 3002.098555][T16245] device_add+0x71c/0x1bc0 [ 3002.102973][T16245] ? uevent_show+0x360/0x360 [ 3002.107613][T16245] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3002.113591][T16245] wiphy_register+0x1c46/0x2720 [ 3002.118441][T16245] ? wiphy_unregister+0xf90/0xf90 [ 3002.123473][T16245] ? __kmalloc+0x629/0x7a0 [ 3002.127890][T16245] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3002.133433][T16245] ieee80211_register_hw+0x13d4/0x36a0 [ 3002.139034][T16245] ? __debug_object_init+0x4a1/0xe20 [ 3002.144329][T16245] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3002.149794][T16245] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3002.155346][T16245] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3002.161334][T16245] ? memset+0x20/0x40 [ 3002.165308][T16245] ? __hrtimer_init+0x134/0x260 [ 3002.170161][T16245] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3002.175887][T16245] ? vprintk_func+0x81/0x17e [ 3002.180490][T16245] ? hwsim_register_received_nl+0x400/0x400 [ 3002.186379][T16245] hwsim_new_radio_nl+0x905/0xf60 [ 3002.191388][T16245] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3002.197264][T16245] ? cap_capable+0x1eb/0x250 [ 3002.201854][T16245] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3002.208172][T16245] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3002.214521][T16245] genl_rcv_msg+0x627/0xdf0 [ 3002.219011][T16245] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3002.225352][T16245] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 3002.231170][T16245] netlink_rcv_skb+0x15a/0x410 [ 3002.235935][T16245] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3002.242257][T16245] ? netlink_ack+0xa80/0xa80 [ 3002.246847][T16245] genl_rcv+0x24/0x40 [ 3002.250815][T16245] netlink_unicast+0x537/0x740 [ 3002.255580][T16245] ? netlink_attachskb+0x810/0x810 [ 3002.260690][T16245] ? _copy_from_iter_full+0x25c/0x870 [ 3002.266063][T16245] ? __phys_addr_symbol+0x2c/0x70 [ 3002.271071][T16245] ? __check_object_size+0x171/0x437 [ 3002.276343][T16245] netlink_sendmsg+0x882/0xe10 [ 3002.281108][T16245] ? aa_af_perm+0x260/0x260 [ 3002.285611][T16245] ? netlink_unicast+0x740/0x740 [ 3002.290552][T16245] ? netlink_unicast+0x740/0x740 [ 3002.295481][T16245] sock_sendmsg+0xcf/0x120 [ 3002.299892][T16245] ____sys_sendmsg+0x6b9/0x7d0 [ 3002.304661][T16245] ? kernel_sendmsg+0x50/0x50 [ 3002.309339][T16245] ? mark_lock+0xbc/0x1220 [ 3002.313774][T16245] ___sys_sendmsg+0x100/0x170 [ 3002.318459][T16245] ? sendmsg_copy_msghdr+0x70/0x70 [ 3002.323590][T16245] ? __fget_files+0x329/0x4f0 [ 3002.328264][T16245] ? ksys_dup3+0x3c0/0x3c0 [ 3002.332697][T16245] ? lock_acquire+0x197/0x420 [ 3002.337358][T16245] ? __might_fault+0xef/0x1d0 [ 3002.342040][T16245] ? __fget_light+0x208/0x270 [ 3002.346713][T16245] __sys_sendmsg+0xec/0x1b0 [ 3002.351206][T16245] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3002.356213][T16245] ? __x64_sys_futex+0x380/0x4f0 [ 3002.361162][T16245] ? trace_hardirqs_off_caller+0x55/0x230 [ 3002.366889][T16245] ? do_syscall_64+0x21/0x7d0 [ 3002.371600][T16245] do_syscall_64+0xf6/0x7d0 [ 3002.376104][T16245] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3002.381991][T16245] RIP: 0033:0x45c849 [ 3002.385931][T16245] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3002.405528][T16245] RSP: 002b:00007fda9c338c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3002.413930][T16245] RAX: ffffffffffffffda RBX: 00007fda9c3396d4 RCX: 000000000045c849 [ 3002.421891][T16245] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3002.429867][T16245] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3002.437835][T16245] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3002.445840][T16245] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac [ 3002.458739][T16243] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3002.494492][T16243] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3002.494492][T16243] !' [ 3002.506811][T16243] CPU: 1 PID: 16243 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3002.515510][T16243] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3002.525564][T16243] Call Trace: [ 3002.528839][T16243] dump_stack+0x188/0x20d [ 3002.533194][T16243] sysfs_warn_dup.cold+0x1c/0x2d [ 3002.538113][T16243] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3002.544165][T16243] sysfs_create_link+0x61/0xc0 [ 3002.548913][T16243] device_add+0x71c/0x1bc0 [ 3002.553315][T16243] ? uevent_show+0x360/0x360 [ 3002.557906][T16243] wiphy_register+0x1c46/0x2720 [ 3002.562797][T16243] ? wiphy_unregister+0xf90/0xf90 [ 3002.567817][T16243] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3002.573517][T16243] ? retint_kernel+0x2b/0x2b [ 3002.578091][T16243] ? ieee80211_register_hw+0xe94/0x36a0 [ 3002.583630][T16243] ieee80211_register_hw+0x13d4/0x36a0 [ 3002.589075][T16243] ? calibrate_delay.cold+0x3db/0x3f6 [ 3002.594430][T16243] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3002.599871][T16243] ? __hrtimer_init+0x134/0x260 [ 3002.604700][T16243] ? __sanitizer_cov_trace_const_cmp4+0x4/0x20 [ 3002.610831][T16243] ? __hrtimer_init+0x134/0x260 [ 3002.615672][T16243] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3002.621377][T16243] ? printk+0xbf/0xed [ 3002.625357][T16243] ? hwsim_register_received_nl+0x400/0x400 [ 3002.631258][T16243] hwsim_new_radio_nl+0x905/0xf60 [ 3002.636270][T16243] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3002.641722][T16243] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3002.647596][T16243] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3002.653307][T16243] genl_rcv_msg+0x627/0xdf0 [ 3002.657794][T16243] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3002.664123][T16243] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 3002.669911][T16243] netlink_rcv_skb+0x15a/0x410 [ 3002.674657][T16243] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3002.680962][T16243] ? netlink_ack+0xa80/0xa80 [ 3002.685554][T16243] ? genl_rcv+0x9/0x40 [ 3002.689616][T16243] genl_rcv+0x24/0x40 [ 3002.693577][T16243] netlink_unicast+0x537/0x740 [ 3002.698328][T16243] ? netlink_attachskb+0x810/0x810 [ 3002.703439][T16243] ? _copy_from_iter_full+0x25c/0x870 [ 3002.708903][T16243] ? __phys_addr_symbol+0x2c/0x70 [ 3002.713922][T16243] ? __check_object_size+0x171/0x437 [ 3002.719211][T16243] netlink_sendmsg+0x882/0xe10 [ 3002.723962][T16243] ? aa_af_perm+0x260/0x260 [ 3002.728457][T16243] ? netlink_unicast+0x740/0x740 [ 3002.733382][T16243] ? netlink_unicast+0x740/0x740 [ 3002.738306][T16243] sock_sendmsg+0xcf/0x120 [ 3002.742719][T16243] ____sys_sendmsg+0x6b9/0x7d0 [ 3002.747509][T16243] ? kernel_sendmsg+0x50/0x50 [ 3002.752180][T16243] ___sys_sendmsg+0x100/0x170 [ 3002.756840][T16243] ? sendmsg_copy_msghdr+0x70/0x70 [ 3002.761937][T16243] ? __fget_files+0x329/0x4f0 [ 3002.766596][T16243] ? ksys_dup3+0x3c0/0x3c0 [ 3002.770993][T16243] ? lock_acquire+0x197/0x420 [ 3002.775648][T16243] ? __might_fault+0xef/0x1d0 [ 3002.780309][T16243] ? __fget_light+0x208/0x270 [ 3002.784968][T16243] __sys_sendmsg+0xec/0x1b0 [ 3002.789451][T16243] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3002.794453][T16243] ? __x64_sys_futex+0x380/0x4f0 [ 3002.799390][T16243] ? trace_hardirqs_off_caller+0x55/0x230 [ 3002.805101][T16243] ? do_syscall_64+0x21/0x7d0 [ 3002.809786][T16243] do_syscall_64+0xf6/0x7d0 [ 3002.814303][T16243] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3002.820181][T16243] RIP: 0033:0x45c849 [ 3002.824062][T16243] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 23:42:30 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3002.843652][T16243] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3002.852054][T16243] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3002.860022][T16243] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3002.868090][T16243] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3002.876050][T16243] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3002.884005][T16243] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3002.926175][T16244] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3002.961754][T16244] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3002.961754][T16244] !' 23:42:30 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c6f940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3002.981569][T16244] CPU: 1 PID: 16244 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3002.990276][T16244] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3003.000339][T16244] Call Trace: [ 3003.003641][T16244] dump_stack+0x188/0x20d [ 3003.007997][T16244] sysfs_warn_dup.cold+0x1c/0x2d [ 3003.012952][T16244] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3003.019073][T16244] sysfs_create_link+0x61/0xc0 [ 3003.023829][T16244] device_add+0x71c/0x1bc0 [ 3003.028237][T16244] ? uevent_show+0x360/0x360 [ 3003.032828][T16244] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3003.038812][T16244] wiphy_register+0x1c46/0x2720 [ 3003.043661][T16244] ? wiphy_unregister+0xf90/0xf90 [ 3003.048702][T16244] ? __kmalloc+0x629/0x7a0 [ 3003.053105][T16244] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3003.058635][T16244] ieee80211_register_hw+0x13d4/0x36a0 [ 3003.064085][T16244] ? __debug_object_init+0x4a1/0xe20 [ 3003.069368][T16244] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3003.074840][T16244] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3003.080399][T16244] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3003.086383][T16244] ? memset+0x20/0x40 [ 3003.090364][T16244] ? __hrtimer_init+0x134/0x260 [ 3003.095228][T16244] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3003.100957][T16244] ? vprintk_func+0x81/0x17e [ 3003.105569][T16244] ? hwsim_register_received_nl+0x400/0x400 [ 3003.111468][T16244] hwsim_new_radio_nl+0x905/0xf60 [ 3003.116495][T16244] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3003.122383][T16244] ? cap_capable+0x1eb/0x250 [ 3003.126973][T16244] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3003.133403][T16244] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3003.139738][T16244] genl_rcv_msg+0x627/0xdf0 [ 3003.144289][T16244] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3003.150632][T16244] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3003.155964][T16244] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3003.161431][T16244] netlink_rcv_skb+0x15a/0x410 [ 3003.166189][T16244] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3003.172516][T16244] ? netlink_ack+0xa80/0xa80 [ 3003.177145][T16244] genl_rcv+0x24/0x40 [ 3003.181125][T16244] netlink_unicast+0x537/0x740 [ 3003.185885][T16244] ? netlink_attachskb+0x810/0x810 [ 3003.190994][T16244] ? _copy_from_iter_full+0x25c/0x870 [ 3003.196373][T16244] ? __phys_addr_symbol+0x2c/0x70 [ 3003.201415][T16244] ? __check_object_size+0x171/0x437 [ 3003.206702][T16244] netlink_sendmsg+0x882/0xe10 [ 3003.211469][T16244] ? aa_af_perm+0x260/0x260 [ 3003.215970][T16244] ? netlink_unicast+0x740/0x740 [ 3003.220910][T16244] ? netlink_unicast+0x740/0x740 [ 3003.225842][T16244] sock_sendmsg+0xcf/0x120 [ 3003.230256][T16244] ____sys_sendmsg+0x6b9/0x7d0 [ 3003.235017][T16244] ? kernel_sendmsg+0x50/0x50 [ 3003.239688][T16244] ? mark_lock+0xbc/0x1220 [ 3003.244101][T16244] ___sys_sendmsg+0x100/0x170 [ 3003.248762][T16244] ? sendmsg_copy_msghdr+0x70/0x70 [ 3003.253864][T16244] ? __fget_files+0x329/0x4f0 [ 3003.258523][T16244] ? ksys_dup3+0x3c0/0x3c0 [ 3003.262931][T16244] ? lock_acquire+0x197/0x420 [ 3003.267613][T16244] ? __might_fault+0xef/0x1d0 [ 3003.272299][T16244] ? __fget_light+0x208/0x270 [ 3003.276976][T16244] __sys_sendmsg+0xec/0x1b0 [ 3003.281463][T16244] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3003.286478][T16244] ? do_syscall_64+0xbc/0x7d0 [ 3003.291157][T16244] do_syscall_64+0xf6/0x7d0 [ 3003.295657][T16244] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3003.301532][T16244] RIP: 0033:0x45c849 [ 3003.305406][T16244] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3003.325010][T16244] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3003.333420][T16244] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3003.341392][T16244] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3003.349358][T16244] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3003.357342][T16244] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3003.365366][T16244] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:42:30 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc0a100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3003.377878][T16250] netlink: 'syz-executor.0': attribute type 8 has an invalid length. [ 3003.386996][T16250] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3003.408288][T16250] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3003.408288][T16250] !' [ 3003.419757][T16250] CPU: 1 PID: 16250 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3003.428447][T16250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3003.438504][T16250] Call Trace: [ 3003.441806][T16250] dump_stack+0x188/0x20d [ 3003.446152][T16250] sysfs_warn_dup.cold+0x1c/0x2d [ 3003.451111][T16250] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3003.457193][T16250] sysfs_create_link+0x61/0xc0 [ 3003.461968][T16250] device_add+0x71c/0x1bc0 [ 3003.466402][T16250] ? uevent_show+0x360/0x360 [ 3003.471003][T16250] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3003.476995][T16250] wiphy_register+0x1c46/0x2720 [ 3003.481863][T16250] ? wiphy_unregister+0xf90/0xf90 [ 3003.486892][T16250] ? __kmalloc+0x629/0x7a0 [ 3003.491304][T16250] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3003.496869][T16250] ? ieee80211_register_hw+0x1d34/0x36a0 [ 3003.502499][T16250] ieee80211_register_hw+0x13d4/0x36a0 [ 3003.507953][T16250] ? __debug_object_init+0x4a1/0xe20 [ 3003.513235][T16250] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3003.518676][T16250] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3003.524203][T16250] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3003.530177][T16250] ? memset+0x20/0x40 [ 3003.534151][T16250] ? __hrtimer_init+0x134/0x260 [ 3003.538986][T16250] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3003.544692][T16250] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3003.550004][T16250] ? hwsim_register_received_nl+0x400/0x400 [ 3003.555907][T16250] hwsim_new_radio_nl+0x905/0xf60 [ 3003.560935][T16250] ? retint_kernel+0x2b/0x2b [ 3003.565536][T16250] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3003.571467][T16250] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3003.577796][T16250] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3003.584134][T16250] genl_rcv_msg+0x627/0xdf0 [ 3003.588655][T16250] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3003.594993][T16250] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3003.600712][T16250] ? retint_kernel+0x2b/0x2b [ 3003.605289][T16250] ? netlink_rcv_skb+0x264/0x410 [ 3003.610219][T16250] ? check_memory_region+0x15/0x190 [ 3003.615413][T16250] netlink_rcv_skb+0x15a/0x410 [ 3003.620346][T16250] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3003.626672][T16250] ? netlink_ack+0xa80/0xa80 [ 3003.631270][T16250] genl_rcv+0x24/0x40 [ 3003.635251][T16250] netlink_unicast+0x537/0x740 [ 3003.640019][T16250] ? netlink_attachskb+0x810/0x810 [ 3003.645120][T16250] ? _copy_from_iter_full+0x25c/0x870 [ 3003.650483][T16250] ? __phys_addr_symbol+0x2c/0x70 [ 3003.655501][T16250] ? __check_object_size+0x171/0x437 [ 3003.660771][T16250] netlink_sendmsg+0x882/0xe10 [ 3003.665531][T16250] ? aa_af_perm+0x260/0x260 [ 3003.670117][T16250] ? netlink_unicast+0x740/0x740 [ 3003.675073][T16250] ? netlink_unicast+0x740/0x740 [ 3003.680004][T16250] sock_sendmsg+0xcf/0x120 [ 3003.684536][T16250] ____sys_sendmsg+0x6b9/0x7d0 [ 3003.689316][T16250] ? kernel_sendmsg+0x50/0x50 [ 3003.694008][T16250] ? mark_lock+0xbc/0x1220 [ 3003.698428][T16250] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3003.703882][T16250] ___sys_sendmsg+0x100/0x170 [ 3003.708554][T16250] ? sendmsg_copy_msghdr+0x70/0x70 [ 3003.713669][T16250] ? __fget_files+0x329/0x4f0 [ 3003.718344][T16250] ? ksys_dup3+0x3c0/0x3c0 [ 3003.722757][T16250] ? lock_acquire+0x197/0x420 [ 3003.727419][T16250] ? __might_fault+0xef/0x1d0 [ 3003.732106][T16250] ? __fget_light+0x208/0x270 [ 3003.736787][T16250] __sys_sendmsg+0xec/0x1b0 [ 3003.741331][T16250] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3003.746383][T16250] do_syscall_64+0xf6/0x7d0 [ 3003.750913][T16250] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3003.756814][T16250] RIP: 0033:0x45c849 [ 3003.760718][T16250] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3003.780326][T16250] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3003.788752][T16250] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3003.796721][T16250] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3003.804682][T16250] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3003.812641][T16250] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3003.820599][T16250] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:42:30 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3003.847703][T16252] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3003.866308][T16252] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3003.866308][T16252] !' [ 3003.899478][T16252] CPU: 1 PID: 16252 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3003.908192][T16252] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3003.918252][T16252] Call Trace: [ 3003.921555][T16252] dump_stack+0x188/0x20d [ 3003.925903][T16252] sysfs_warn_dup.cold+0x1c/0x2d [ 3003.930861][T16252] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3003.936935][T16252] sysfs_create_link+0x61/0xc0 [ 3003.941686][T16252] device_add+0x71c/0x1bc0 [ 3003.946087][T16252] ? uevent_show+0x360/0x360 [ 3003.950661][T16252] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3003.956672][T16252] wiphy_register+0x1c46/0x2720 [ 3003.961522][T16252] ? wiphy_unregister+0xf90/0xf90 [ 3003.966531][T16252] ? __kmalloc+0x629/0x7a0 [ 3003.970978][T16252] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3003.976508][T16252] ieee80211_register_hw+0x13d4/0x36a0 [ 3003.981952][T16252] ? __debug_object_init+0x4a1/0xe20 [ 3003.987223][T16252] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3003.992683][T16252] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3003.998236][T16252] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3004.004225][T16252] ? memset+0x20/0x40 [ 3004.008232][T16252] ? __hrtimer_init+0x134/0x260 [ 3004.013184][T16252] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3004.018913][T16252] ? vprintk_func+0x81/0x17e [ 3004.023658][T16252] ? hwsim_register_received_nl+0x400/0x400 [ 3004.029561][T16252] hwsim_new_radio_nl+0x905/0xf60 [ 3004.034575][T16252] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3004.040523][T16252] ? cap_capable+0x1eb/0x250 [ 3004.045157][T16252] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3004.051466][T16252] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3004.057784][T16252] genl_rcv_msg+0x627/0xdf0 [ 3004.062332][T16252] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3004.068651][T16252] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 3004.074483][T16252] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3004.079934][T16252] netlink_rcv_skb+0x15a/0x410 [ 3004.084678][T16252] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3004.090992][T16252] ? netlink_ack+0xa80/0xa80 [ 3004.095567][T16252] ? netlink_deliver_tap+0x227/0xb50 [ 3004.100830][T16252] ? netlink_deliver_tap+0x24a/0xb50 [ 3004.106101][T16252] genl_rcv+0x24/0x40 [ 3004.110085][T16252] netlink_unicast+0x537/0x740 [ 3004.114850][T16252] ? netlink_attachskb+0x810/0x810 [ 3004.119956][T16252] ? _copy_from_iter_full+0x25c/0x870 [ 3004.125309][T16252] ? __phys_addr_symbol+0x2c/0x70 [ 3004.130317][T16252] ? __check_object_size+0x171/0x437 [ 3004.135600][T16252] netlink_sendmsg+0x882/0xe10 [ 3004.140345][T16252] ? aa_af_perm+0x260/0x260 [ 3004.144837][T16252] ? netlink_unicast+0x740/0x740 [ 3004.149759][T16252] ? netlink_unicast+0x740/0x740 [ 3004.154689][T16252] sock_sendmsg+0xcf/0x120 [ 3004.159117][T16252] ____sys_sendmsg+0x6b9/0x7d0 [ 3004.163883][T16252] ? kernel_sendmsg+0x50/0x50 [ 3004.168555][T16252] ? mark_lock+0xbc/0x1220 [ 3004.173005][T16252] ___sys_sendmsg+0x100/0x170 [ 3004.177675][T16252] ? sendmsg_copy_msghdr+0x70/0x70 [ 3004.182797][T16252] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3004.188245][T16252] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3004.193576][T16252] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3004.199026][T16252] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3004.204734][T16252] ? retint_kernel+0x2b/0x2b [ 3004.209338][T16252] ? __sys_sendmsg+0xd3/0x1b0 [ 3004.214023][T16252] __sys_sendmsg+0xec/0x1b0 [ 3004.218510][T16252] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3004.223530][T16252] ? __x64_sys_futex+0x380/0x4f0 [ 3004.228467][T16252] ? trace_hardirqs_off_caller+0x55/0x230 [ 3004.234175][T16252] ? do_syscall_64+0x21/0x7d0 [ 3004.238845][T16252] do_syscall_64+0xf6/0x7d0 [ 3004.243384][T16252] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3004.249260][T16252] RIP: 0033:0x45c849 [ 3004.253143][T16252] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3004.272738][T16252] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3004.281138][T16252] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3004.289098][T16252] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 23:42:31 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c6f940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3004.297119][T16252] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3004.305082][T16252] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3004.313039][T16252] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3004.331546][T16255] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3004.376424][T16255] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3004.376424][T16255] !' [ 3004.386281][T16255] CPU: 1 PID: 16255 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3004.394957][T16255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3004.405057][T16255] Call Trace: [ 3004.408339][T16255] dump_stack+0x188/0x20d [ 3004.412661][T16255] sysfs_warn_dup.cold+0x1c/0x2d [ 3004.417649][T16255] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3004.423704][T16255] sysfs_create_link+0x61/0xc0 [ 3004.428463][T16255] device_add+0x71c/0x1bc0 [ 3004.432983][T16255] ? uevent_show+0x360/0x360 [ 3004.437573][T16255] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3004.443543][T16255] wiphy_register+0x1c46/0x2720 [ 3004.448437][T16255] ? wiphy_unregister+0xf90/0xf90 [ 3004.453461][T16255] ? __kmalloc+0x629/0x7a0 [ 3004.457858][T16255] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3004.463387][T16255] ieee80211_register_hw+0x13d4/0x36a0 [ 3004.468829][T16255] ? __debug_object_init+0x4a1/0xe20 [ 3004.474122][T16255] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3004.479585][T16255] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3004.485131][T16255] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3004.491117][T16255] ? memset+0x20/0x40 [ 3004.495099][T16255] ? __hrtimer_init+0x134/0x260 [ 3004.499958][T16255] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3004.505677][T16255] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3004.510965][T16255] ? hwsim_register_received_nl+0x400/0x400 [ 3004.516863][T16255] hwsim_new_radio_nl+0x905/0xf60 [ 3004.521888][T16255] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3004.527174][T16255] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3004.533082][T16255] genl_rcv_msg+0x627/0xdf0 [ 3004.537604][T16255] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3004.543933][T16255] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3004.549397][T16255] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3004.555117][T16255] ? netlink_rcv_skb+0x264/0x410 [ 3004.560060][T16255] netlink_rcv_skb+0x15a/0x410 [ 3004.564819][T16255] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3004.571147][T16255] ? netlink_ack+0xa80/0xa80 [ 3004.575802][T16255] genl_rcv+0x24/0x40 [ 3004.579792][T16255] netlink_unicast+0x537/0x740 [ 3004.584555][T16255] ? netlink_attachskb+0x810/0x810 [ 3004.589663][T16255] ? _copy_from_iter_full+0x25c/0x870 [ 3004.595038][T16255] ? __phys_addr_symbol+0x2c/0x70 [ 3004.600056][T16255] ? __check_object_size+0x171/0x437 [ 3004.605337][T16255] netlink_sendmsg+0x882/0xe10 [ 3004.610214][T16255] ? aa_af_perm+0x260/0x260 [ 3004.614769][T16255] ? netlink_unicast+0x740/0x740 [ 3004.619719][T16255] ? netlink_unicast+0x740/0x740 [ 3004.624651][T16255] sock_sendmsg+0xcf/0x120 [ 3004.629056][T16255] ____sys_sendmsg+0x6b9/0x7d0 [ 3004.633822][T16255] ? kernel_sendmsg+0x50/0x50 [ 3004.638488][T16255] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3004.643950][T16255] ___sys_sendmsg+0x100/0x170 [ 3004.648632][T16255] ? retint_kernel+0x2b/0x2b [ 3004.653210][T16255] ? sendmsg_copy_msghdr+0x70/0x70 [ 3004.658324][T16255] ? __fget_files+0x2ef/0x4f0 [ 3004.663012][T16255] ? __fget_files+0x329/0x4f0 [ 3004.667673][T16255] ? ksys_dup3+0x3c0/0x3c0 [ 3004.672068][T16255] ? lock_acquire+0x197/0x420 [ 3004.676726][T16255] ? __might_fault+0xef/0x1d0 [ 3004.681400][T16255] ? __fget_light+0x208/0x270 [ 3004.686106][T16255] __sys_sendmsg+0xec/0x1b0 [ 3004.690619][T16255] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3004.695635][T16255] ? __x64_sys_futex+0x380/0x4f0 [ 3004.700576][T16255] ? trace_hardirqs_off_caller+0x55/0x230 [ 3004.706302][T16255] ? do_syscall_64+0x21/0x7d0 [ 3004.710988][T16255] do_syscall_64+0xf6/0x7d0 [ 3004.715509][T16255] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3004.721394][T16255] RIP: 0033:0x45c849 [ 3004.725282][T16255] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3004.744868][T16255] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3004.753397][T16255] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3004.761382][T16255] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3004.769471][T16255] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 23:42:31 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc25100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3004.777479][T16255] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3004.785436][T16255] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3004.797844][T16258] netlink: 'syz-executor.0': attribute type 8 has an invalid length. [ 3004.813367][T16258] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3004.844424][T16258] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3004.844424][T16258] !' [ 3004.858776][T16258] CPU: 0 PID: 16258 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3004.867575][T16258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3004.877639][T16258] Call Trace: [ 3004.880932][T16258] dump_stack+0x188/0x20d [ 3004.885253][T16258] sysfs_warn_dup.cold+0x1c/0x2d [ 3004.890189][T16258] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3004.896247][T16258] sysfs_create_link+0x61/0xc0 [ 3004.900991][T16258] device_add+0x71c/0x1bc0 [ 3004.905388][T16258] ? uevent_show+0x360/0x360 [ 3004.909960][T16258] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3004.915923][T16258] wiphy_register+0x1c46/0x2720 [ 3004.920761][T16258] ? wiphy_unregister+0xf90/0xf90 [ 3004.925767][T16258] ? __kmalloc+0x629/0x7a0 [ 3004.930182][T16258] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3004.935716][T16258] ieee80211_register_hw+0x13d4/0x36a0 [ 3004.941184][T16258] ? __debug_object_init+0x4a1/0xe20 [ 3004.946472][T16258] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3004.951916][T16258] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3004.957442][T16258] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3004.963461][T16258] ? memset+0x20/0x40 [ 3004.967424][T16258] ? __hrtimer_init+0x134/0x260 [ 3004.972301][T16258] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3004.978010][T16258] ? vprintk_func+0x81/0x17e [ 3004.982634][T16258] ? hwsim_register_received_nl+0x400/0x400 [ 3004.988523][T16258] hwsim_new_radio_nl+0x905/0xf60 [ 3004.993529][T16258] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3004.999436][T16258] ? cap_capable+0x1eb/0x250 [ 3005.004009][T16258] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3005.010572][T16258] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3005.016876][T16258] genl_rcv_msg+0x627/0xdf0 [ 3005.021362][T16258] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3005.027671][T16258] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3005.032962][T16258] ? retint_kernel+0x2b/0x2b [ 3005.037553][T16258] netlink_rcv_skb+0x15a/0x410 [ 3005.042304][T16258] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3005.048619][T16258] ? netlink_ack+0xa80/0xa80 [ 3005.053216][T16258] genl_rcv+0x24/0x40 [ 3005.057271][T16258] netlink_unicast+0x537/0x740 [ 3005.062021][T16258] ? netlink_attachskb+0x810/0x810 [ 3005.067110][T16258] ? _copy_from_iter_full+0x25c/0x870 [ 3005.072531][T16258] ? __phys_addr_symbol+0x2c/0x70 [ 3005.077548][T16258] ? __check_object_size+0x171/0x437 [ 3005.082820][T16258] netlink_sendmsg+0x882/0xe10 [ 3005.087586][T16258] ? aa_af_perm+0x260/0x260 [ 3005.092071][T16258] ? netlink_unicast+0x740/0x740 [ 3005.096994][T16258] ? netlink_unicast+0x740/0x740 [ 3005.101915][T16258] sock_sendmsg+0xcf/0x120 [ 3005.106364][T16258] ____sys_sendmsg+0x6b9/0x7d0 [ 3005.111116][T16258] ? kernel_sendmsg+0x50/0x50 [ 3005.115880][T16258] ___sys_sendmsg+0x100/0x170 [ 3005.120684][T16258] ? sendmsg_copy_msghdr+0x70/0x70 [ 3005.125783][T16258] ? __fget_files+0x329/0x4f0 [ 3005.130441][T16258] ? ksys_dup3+0x3c0/0x3c0 [ 3005.134843][T16258] ? lock_acquire+0x197/0x420 [ 3005.139501][T16258] ? __might_fault+0xef/0x1d0 [ 3005.144162][T16258] ? __fget_light+0x208/0x270 [ 3005.148820][T16258] __sys_sendmsg+0xec/0x1b0 [ 3005.153305][T16258] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3005.158306][T16258] ? __x64_sys_futex+0x380/0x4f0 [ 3005.163229][T16258] ? trace_hardirqs_off_caller+0x55/0x230 [ 3005.168952][T16258] ? do_syscall_64+0x21/0x7d0 [ 3005.173629][T16258] do_syscall_64+0xf6/0x7d0 [ 3005.178134][T16258] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3005.184010][T16258] RIP: 0033:0x45c849 [ 3005.187885][T16258] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3005.207481][T16258] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3005.215888][T16258] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3005.223837][T16258] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3005.231785][T16258] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3005.239734][T16258] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3005.247681][T16258] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3005.272479][T16263] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3005.295519][T16263] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3005.295519][T16263] !' [ 3005.305396][T16263] CPU: 1 PID: 16263 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3005.314075][T16263] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3005.324132][T16263] Call Trace: [ 3005.327442][T16263] dump_stack+0x188/0x20d [ 3005.331790][T16263] sysfs_warn_dup.cold+0x1c/0x2d [ 3005.336787][T16263] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3005.342864][T16263] sysfs_create_link+0x61/0xc0 [ 3005.347752][T16263] device_add+0x71c/0x1bc0 [ 3005.352186][T16263] ? uevent_show+0x360/0x360 [ 3005.356787][T16263] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3005.362783][T16263] wiphy_register+0x1c46/0x2720 [ 3005.367655][T16263] ? wiphy_unregister+0xf90/0xf90 [ 3005.372678][T16263] ? __kmalloc+0x629/0x7a0 [ 3005.377236][T16263] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3005.382808][T16263] ieee80211_register_hw+0x13d4/0x36a0 [ 3005.388266][T16263] ? __debug_object_init+0x4a1/0xe20 [ 3005.393543][T16263] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3005.399005][T16263] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3005.404537][T16263] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3005.410514][T16263] ? memset+0x20/0x40 [ 3005.414518][T16263] ? __hrtimer_init+0x134/0x260 [ 3005.419369][T16263] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3005.425084][T16263] ? vprintk_func+0x81/0x17e [ 3005.429693][T16263] ? hwsim_register_received_nl+0x400/0x400 [ 3005.435586][T16263] hwsim_new_radio_nl+0x905/0xf60 [ 3005.440615][T16263] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3005.446510][T16263] ? cap_capable+0x1eb/0x250 [ 3005.451116][T16263] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3005.457447][T16263] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3005.463765][T16263] genl_rcv_msg+0x627/0xdf0 [ 3005.468266][T16263] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3005.474581][T16263] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3005.479872][T16263] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3005.485335][T16263] netlink_rcv_skb+0x15a/0x410 [ 3005.490096][T16263] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3005.496420][T16263] ? netlink_ack+0xa80/0xa80 [ 3005.501025][T16263] genl_rcv+0x24/0x40 [ 3005.505001][T16263] netlink_unicast+0x537/0x740 [ 3005.509760][T16263] ? netlink_attachskb+0x810/0x810 [ 3005.514864][T16263] ? _copy_from_iter_full+0x25c/0x870 [ 3005.520317][T16263] ? __phys_addr_symbol+0x2c/0x70 [ 3005.525497][T16263] ? __check_object_size+0x171/0x437 [ 3005.530783][T16263] netlink_sendmsg+0x882/0xe10 [ 3005.535542][T16263] ? aa_af_perm+0x260/0x260 [ 3005.540045][T16263] ? netlink_unicast+0x740/0x740 [ 3005.544985][T16263] ? netlink_unicast+0x740/0x740 [ 3005.549914][T16263] sock_sendmsg+0xcf/0x120 [ 3005.554366][T16263] ____sys_sendmsg+0x6b9/0x7d0 [ 3005.559115][T16263] ? kernel_sendmsg+0x50/0x50 [ 3005.563777][T16263] ? mark_lock+0xbc/0x1220 [ 3005.568180][T16263] ___sys_sendmsg+0x100/0x170 [ 3005.572847][T16263] ? sendmsg_copy_msghdr+0x70/0x70 [ 3005.577961][T16263] ? __fget_files+0x329/0x4f0 [ 3005.582649][T16263] ? ksys_dup3+0x3c0/0x3c0 [ 3005.587057][T16263] ? lock_acquire+0x209/0x420 [ 3005.591773][T16263] ? __fget_light+0x208/0x270 [ 3005.596497][T16263] __sys_sendmsg+0xec/0x1b0 [ 3005.600995][T16263] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3005.606011][T16263] ? __x64_sys_futex+0x380/0x4f0 [ 3005.610953][T16263] ? trace_hardirqs_off_caller+0x55/0x230 [ 3005.616667][T16263] ? do_syscall_64+0x21/0x7d0 [ 3005.621342][T16263] do_syscall_64+0xf6/0x7d0 [ 3005.625843][T16263] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3005.631773][T16263] RIP: 0033:0x45c849 [ 3005.635653][T16263] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3005.655332][T16263] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3005.663731][T16263] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3005.671704][T16263] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3005.679672][T16263] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3005.687639][T16263] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3005.695598][T16263] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3005.709663][T16265] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3005.725909][T16265] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3005.725909][T16265] !' [ 3005.747105][T16265] CPU: 0 PID: 16265 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3005.755806][T16265] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3005.765843][T16265] Call Trace: [ 3005.769173][T16265] dump_stack+0x188/0x20d [ 3005.773491][T16265] sysfs_warn_dup.cold+0x1c/0x2d [ 3005.778415][T16265] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3005.784486][T16265] sysfs_create_link+0x61/0xc0 [ 3005.789250][T16265] device_add+0x71c/0x1bc0 [ 3005.793670][T16265] ? uevent_show+0x360/0x360 [ 3005.798301][T16265] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3005.804275][T16265] wiphy_register+0x1c46/0x2720 [ 3005.809108][T16265] ? wiphy_unregister+0xf90/0xf90 [ 3005.814166][T16265] ? __kmalloc+0x629/0x7a0 [ 3005.818567][T16265] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3005.824101][T16265] ieee80211_register_hw+0x13d4/0x36a0 [ 3005.829540][T16265] ? __debug_object_init+0x4a1/0xe20 [ 3005.834826][T16265] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3005.840322][T16265] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3005.845847][T16265] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3005.851810][T16265] ? memset+0x20/0x40 [ 3005.855858][T16265] ? __hrtimer_init+0x134/0x260 [ 3005.860744][T16265] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3005.866461][T16265] ? vprintk_func+0x81/0x17e [ 3005.871056][T16265] ? hwsim_register_received_nl+0x400/0x400 [ 3005.876947][T16265] hwsim_new_radio_nl+0x905/0xf60 [ 3005.881956][T16265] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3005.887867][T16265] ? cap_capable+0x1eb/0x250 [ 3005.892443][T16265] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3005.898745][T16265] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3005.905049][T16265] genl_rcv_msg+0x627/0xdf0 [ 3005.909533][T16265] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3005.915861][T16265] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3005.921143][T16265] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3005.926639][T16265] netlink_rcv_skb+0x15a/0x410 [ 3005.931400][T16265] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3005.937743][T16265] ? netlink_ack+0xa80/0xa80 [ 3005.942324][T16265] genl_rcv+0x24/0x40 [ 3005.946287][T16265] netlink_unicast+0x537/0x740 [ 3005.951039][T16265] ? netlink_attachskb+0x810/0x810 [ 3005.956135][T16265] ? _copy_from_iter_full+0x25c/0x870 [ 3005.961497][T16265] ? __phys_addr_symbol+0x2c/0x70 [ 3005.966547][T16265] ? __check_object_size+0x171/0x437 [ 3005.971816][T16265] netlink_sendmsg+0x882/0xe10 [ 3005.976570][T16265] ? aa_af_perm+0x260/0x260 [ 3005.981051][T16265] ? netlink_unicast+0x740/0x740 [ 3005.985972][T16265] ? netlink_unicast+0x740/0x740 [ 3005.990899][T16265] sock_sendmsg+0xcf/0x120 [ 3005.995292][T16265] ____sys_sendmsg+0x6b9/0x7d0 [ 3006.000049][T16265] ? kernel_sendmsg+0x50/0x50 [ 3006.004709][T16265] ? mark_lock+0xbc/0x1220 [ 3006.009165][T16265] ___sys_sendmsg+0x100/0x170 [ 3006.013882][T16265] ? sendmsg_copy_msghdr+0x70/0x70 [ 3006.018980][T16265] ? __fget_files+0x329/0x4f0 [ 3006.023646][T16265] ? ksys_dup3+0x3c0/0x3c0 [ 3006.028081][T16265] ? lock_acquire+0x197/0x420 [ 3006.032749][T16265] ? __might_fault+0xef/0x1d0 [ 3006.037423][T16265] ? __fget_light+0x208/0x270 [ 3006.042137][T16265] __sys_sendmsg+0xec/0x1b0 [ 3006.046631][T16265] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3006.051640][T16265] ? __x64_sys_futex+0x380/0x4f0 [ 3006.056653][T16265] ? trace_hardirqs_off_caller+0x55/0x230 [ 3006.062403][T16265] ? do_syscall_64+0x21/0x7d0 [ 3006.067061][T16265] do_syscall_64+0xf6/0x7d0 [ 3006.071550][T16265] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3006.077419][T16265] RIP: 0033:0x45c849 [ 3006.081333][T16265] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3006.100920][T16265] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3006.109314][T16265] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3006.117263][T16265] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3006.125211][T16265] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3006.133171][T16265] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3006.141118][T16265] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:42:42 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:42 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc0a100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3015.476236][T16280] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3015.501657][T16280] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3015.501657][T16280] !' [ 3015.512483][T16280] CPU: 1 PID: 16280 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3015.521170][T16280] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3015.531230][T16280] Call Trace: [ 3015.534514][T16280] dump_stack+0x188/0x20d [ 3015.538873][T16280] sysfs_warn_dup.cold+0x1c/0x2d [ 3015.543904][T16280] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3015.549984][T16280] sysfs_create_link+0x61/0xc0 [ 3015.554753][T16280] device_add+0x71c/0x1bc0 [ 3015.559196][T16280] ? uevent_show+0x360/0x360 [ 3015.563796][T16280] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3015.569789][T16280] wiphy_register+0x1c46/0x2720 [ 3015.574651][T16280] ? wiphy_unregister+0xf90/0xf90 [ 3015.579703][T16280] ? __kmalloc+0x629/0x7a0 [ 3015.584152][T16280] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3015.589715][T16280] ieee80211_register_hw+0x13d4/0x36a0 [ 3015.595174][T16280] ? __debug_object_init+0x4a1/0xe20 [ 3015.600474][T16280] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3015.605993][T16280] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3015.611523][T16280] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3015.617486][T16280] ? memset+0x20/0x40 [ 3015.621557][T16280] ? __hrtimer_init+0x134/0x260 [ 3015.626445][T16280] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3015.632165][T16280] ? hwsim_register_received_nl+0x400/0x400 [ 3015.638084][T16280] hwsim_new_radio_nl+0x905/0xf60 [ 3015.643136][T16280] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3015.649046][T16280] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3015.655364][T16280] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3015.661690][T16280] genl_rcv_msg+0x627/0xdf0 [ 3015.666190][T16280] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3015.672505][T16280] ? mark_lock+0xbc/0x1220 [ 3015.676960][T16280] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3015.682421][T16280] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3015.687702][T16280] netlink_rcv_skb+0x15a/0x410 [ 3015.692450][T16280] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3015.698758][T16280] ? netlink_ack+0xa80/0xa80 [ 3015.703348][T16280] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3015.709681][T16280] ? netlink_rcv_skb+0xd/0x410 [ 3015.714445][T16280] genl_rcv+0x24/0x40 [ 3015.718421][T16280] netlink_unicast+0x537/0x740 [ 3015.723201][T16280] ? netlink_attachskb+0x810/0x810 [ 3015.728313][T16280] ? security_netlink_send+0x13/0xa0 [ 3015.733593][T16280] ? security_netlink_send+0x1a/0xa0 [ 3015.738873][T16280] netlink_sendmsg+0x882/0xe10 [ 3015.743638][T16280] ? aa_af_perm+0x260/0x260 [ 3015.748134][T16280] ? netlink_unicast+0x740/0x740 [ 3015.753059][T16280] ? netlink_unicast+0x740/0x740 [ 3015.757979][T16280] sock_sendmsg+0xcf/0x120 [ 3015.762391][T16280] ____sys_sendmsg+0x6b9/0x7d0 [ 3015.767150][T16280] ? kernel_sendmsg+0x50/0x50 [ 3015.771811][T16280] ? mark_lock+0xbc/0x1220 [ 3015.776213][T16280] ___sys_sendmsg+0x100/0x170 [ 3015.780885][T16280] ? sendmsg_copy_msghdr+0x70/0x70 [ 3015.785991][T16280] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3015.791433][T16280] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3015.796695][T16280] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3015.802177][T16280] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3015.807886][T16280] ? retint_kernel+0x2b/0x2b [ 3015.812462][T16280] ? sockfd_lookup_light+0xd9/0x170 [ 3015.817654][T16280] ? sockfd_lookup_light+0x100/0x170 [ 3015.822943][T16280] __sys_sendmsg+0xec/0x1b0 [ 3015.827442][T16280] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3015.832459][T16280] ? __x64_sys_futex+0x380/0x4f0 [ 3015.837411][T16280] ? trace_hardirqs_off_caller+0x55/0x230 [ 3015.843144][T16280] ? do_syscall_64+0x21/0x7d0 [ 3015.847836][T16280] do_syscall_64+0xf6/0x7d0 [ 3015.852338][T16280] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3015.858266][T16280] RIP: 0033:0x45c849 [ 3015.862157][T16280] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3015.881765][T16280] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3015.890182][T16280] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3015.898148][T16280] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3015.906152][T16280] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3015.914138][T16280] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3015.922134][T16280] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3015.941341][T16278] netlink: 'syz-executor.0': attribute type 8 has an invalid length. [ 3015.951672][T16278] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3015.970970][T16278] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3015.970970][T16278] !' [ 3015.981215][T16278] CPU: 1 PID: 16278 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3015.989900][T16278] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3015.999960][T16278] Call Trace: [ 3016.003256][T16278] dump_stack+0x188/0x20d [ 3016.007582][T16278] sysfs_warn_dup.cold+0x1c/0x2d [ 3016.012508][T16278] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3016.018568][T16278] sysfs_create_link+0x61/0xc0 [ 3016.023322][T16278] device_add+0x71c/0x1bc0 [ 3016.027740][T16278] ? uevent_show+0x360/0x360 [ 3016.032319][T16278] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3016.038395][T16278] wiphy_register+0x1c46/0x2720 [ 3016.043261][T16278] ? wiphy_unregister+0xf90/0xf90 [ 3016.048282][T16278] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3016.053997][T16278] ? retint_kernel+0x2b/0x2b [ 3016.058598][T16278] ? ieee80211_register_hw+0xfbd/0x36a0 [ 3016.064139][T16278] ieee80211_register_hw+0x13d4/0x36a0 [ 3016.069586][T16278] ? __debug_object_init+0x4a1/0xe20 [ 3016.074857][T16278] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3016.080325][T16278] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3016.085852][T16278] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3016.091815][T16278] ? memset+0x20/0x40 [ 3016.095779][T16278] ? __hrtimer_init+0x134/0x260 [ 3016.100616][T16278] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3016.106318][T16278] ? vprintk_func+0x81/0x17e [ 3016.110904][T16278] ? hwsim_register_received_nl+0x400/0x400 [ 3016.116781][T16278] hwsim_new_radio_nl+0x905/0xf60 [ 3016.121791][T16278] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3016.127668][T16278] ? retint_kernel+0x2b/0x2b [ 3016.132238][T16278] ? cap_capable+0x1eb/0x250 [ 3016.136839][T16278] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3016.143150][T16278] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3016.149461][T16278] genl_rcv_msg+0x627/0xdf0 [ 3016.153950][T16278] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3016.160267][T16278] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3016.165537][T16278] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3016.170992][T16278] netlink_rcv_skb+0x15a/0x410 [ 3016.175763][T16278] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3016.182090][T16278] ? netlink_ack+0xa80/0xa80 [ 3016.186688][T16278] genl_rcv+0x24/0x40 [ 3016.190674][T16278] netlink_unicast+0x537/0x740 [ 3016.195432][T16278] ? netlink_attachskb+0x810/0x810 [ 3016.200530][T16278] ? _copy_from_iter_full+0x25c/0x870 [ 3016.206342][T16278] ? __phys_addr_symbol+0x2c/0x70 [ 3016.211351][T16278] ? __check_object_size+0x171/0x437 [ 3016.216624][T16278] netlink_sendmsg+0x882/0xe10 [ 3016.221377][T16278] ? aa_af_perm+0x260/0x260 [ 3016.225883][T16278] ? netlink_unicast+0x740/0x740 [ 3016.230834][T16278] ? netlink_unicast+0x740/0x740 [ 3016.235775][T16278] sock_sendmsg+0xcf/0x120 [ 3016.240195][T16278] ____sys_sendmsg+0x6b9/0x7d0 [ 3016.244952][T16278] ? kernel_sendmsg+0x50/0x50 [ 3016.249647][T16278] ? mark_lock+0xbc/0x1220 [ 3016.254073][T16278] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3016.259527][T16278] ___sys_sendmsg+0x100/0x170 [ 3016.264213][T16278] ? sendmsg_copy_msghdr+0x70/0x70 [ 3016.269337][T16278] ? __fget_files+0x329/0x4f0 [ 3016.274029][T16278] ? ksys_dup3+0x3c0/0x3c0 [ 3016.278429][T16278] ? lock_acquire+0x197/0x420 [ 3016.283106][T16278] ? __might_fault+0xef/0x1d0 [ 3016.287775][T16278] ? __fget_light+0x208/0x270 [ 3016.292444][T16278] __sys_sendmsg+0xec/0x1b0 [ 3016.296940][T16278] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3016.301964][T16278] ? trace_hardirqs_off_caller+0x55/0x230 [ 3016.307677][T16278] ? do_syscall_64+0x21/0x7d0 [ 3016.312342][T16278] do_syscall_64+0xf6/0x7d0 [ 3016.316846][T16278] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3016.322720][T16278] RIP: 0033:0x45c849 [ 3016.326600][T16278] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3016.346183][T16278] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3016.354573][T16278] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3016.362536][T16278] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3016.370490][T16278] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3016.378456][T16278] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3016.386499][T16278] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:42:48 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024040705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:48 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:48 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc61100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:48 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:48 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:48 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c75940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3021.794769][T16290] netlink: 'syz-executor.5': attribute type 8 has an invalid length. [ 3021.803893][T16290] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3021.839086][T16290] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3021.839086][T16290] !' [ 3021.852435][T16290] CPU: 1 PID: 16290 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3021.861236][T16290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3021.871288][T16290] Call Trace: [ 3021.874567][T16290] dump_stack+0x188/0x20d [ 3021.878894][T16290] sysfs_warn_dup.cold+0x1c/0x2d [ 3021.883837][T16290] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3021.889908][T16290] sysfs_create_link+0x61/0xc0 [ 3021.894675][T16290] device_add+0x71c/0x1bc0 [ 3021.899080][T16290] ? ieee80211_set_bitrate_flags+0x46a/0x5c0 [ 3021.905059][T16290] ? uevent_show+0x360/0x360 [ 3021.909644][T16290] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3021.915607][T16290] wiphy_register+0x1c46/0x2720 [ 3021.920448][T16290] ? wiphy_unregister+0xf90/0xf90 [ 3021.925496][T16290] ? retint_kernel+0x2b/0x2b [ 3021.930080][T16290] ? ieee80211_register_hw+0x1375/0x36a0 [ 3021.935746][T16290] ieee80211_register_hw+0x13d4/0x36a0 [ 3021.941328][T16290] ? __debug_object_init+0x4a1/0xe20 [ 3021.946637][T16290] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3021.952102][T16290] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3021.957630][T16290] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3021.963597][T16290] ? memset+0x20/0x40 [ 3021.967573][T16290] ? __hrtimer_init+0x134/0x260 [ 3021.972429][T16290] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3021.978158][T16290] ? vprintk_func+0x81/0x17e [ 3021.982772][T16290] ? hwsim_register_received_nl+0x400/0x400 [ 3021.988666][T16290] hwsim_new_radio_nl+0x905/0xf60 [ 3021.993686][T16290] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3021.998958][T16290] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3022.004856][T16290] genl_rcv_msg+0x627/0xdf0 [ 3022.009360][T16290] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3022.015683][T16290] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3022.021018][T16290] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3022.026741][T16290] ? retint_kernel+0x2b/0x2b [ 3022.031347][T16290] netlink_rcv_skb+0x15a/0x410 [ 3022.036129][T16290] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3022.042543][T16290] ? netlink_ack+0xa80/0xa80 [ 3022.047167][T16290] genl_rcv+0x24/0x40 [ 3022.051152][T16290] netlink_unicast+0x537/0x740 [ 3022.055958][T16290] ? netlink_attachskb+0x810/0x810 [ 3022.061065][T16290] ? _copy_from_iter_full+0x25c/0x870 [ 3022.066422][T16290] ? __phys_addr_symbol+0x2c/0x70 [ 3022.071431][T16290] ? __check_object_size+0x171/0x437 [ 3022.076810][T16290] netlink_sendmsg+0x882/0xe10 [ 3022.081564][T16290] ? retint_kernel+0x2b/0x2b [ 3022.086184][T16290] ? netlink_unicast+0x740/0x740 [ 3022.091122][T16290] ? sock_sendmsg+0x65/0x120 [ 3022.095730][T16290] ? netlink_unicast+0x740/0x740 [ 3022.100650][T16290] sock_sendmsg+0xcf/0x120 [ 3022.105050][T16290] ____sys_sendmsg+0x6b9/0x7d0 [ 3022.109807][T16290] ? kernel_sendmsg+0x50/0x50 [ 3022.114523][T16290] ? retint_kernel+0x2b/0x2b [ 3022.119133][T16290] ? ___sys_sendmsg+0xe6/0x170 [ 3022.123879][T16290] ___sys_sendmsg+0x100/0x170 [ 3022.128551][T16290] ? sendmsg_copy_msghdr+0x70/0x70 [ 3022.133662][T16290] ? __fget_files+0x329/0x4f0 [ 3022.138320][T16290] ? ksys_dup3+0x3c0/0x3c0 [ 3022.142718][T16290] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3022.148417][T16290] ? retint_kernel+0x2b/0x2b [ 3022.153018][T16290] ? __fget_light+0x208/0x270 [ 3022.157709][T16290] __sys_sendmsg+0xec/0x1b0 [ 3022.162206][T16290] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3022.167217][T16290] ? __x64_sys_futex+0x380/0x4f0 [ 3022.172280][T16290] ? trace_hardirqs_off_caller+0x55/0x230 [ 3022.177987][T16290] ? do_syscall_64+0x21/0x7d0 [ 3022.182648][T16290] do_syscall_64+0xf6/0x7d0 [ 3022.187137][T16290] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3022.193018][T16290] RIP: 0033:0x45c849 [ 3022.196897][T16290] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3022.216487][T16290] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3022.224901][T16290] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3022.232860][T16290] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3022.240831][T16290] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3022.248788][T16290] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3022.256755][T16290] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3022.277304][T16289] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3022.298943][T16289] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3022.298943][T16289] !' [ 3022.309456][T16289] CPU: 1 PID: 16289 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3022.318155][T16289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3022.328213][T16289] Call Trace: [ 3022.331518][T16289] dump_stack+0x188/0x20d [ 3022.335860][T16289] sysfs_warn_dup.cold+0x1c/0x2d [ 3022.340790][T16289] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3022.346846][T16289] sysfs_create_link+0x61/0xc0 [ 3022.351595][T16289] device_add+0x71c/0x1bc0 [ 3022.355998][T16289] ? ieee80211_set_bitrate_flags+0x4c5/0x5c0 [ 3022.361960][T16289] ? uevent_show+0x360/0x360 [ 3022.366533][T16289] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3022.372501][T16289] wiphy_register+0x1c46/0x2720 [ 3022.377340][T16289] ? wiphy_unregister+0xf90/0xf90 [ 3022.382347][T16289] ? retint_kernel+0x2b/0x2b [ 3022.386923][T16289] ? ieee80211_register_hw+0xfcd/0x36a0 [ 3022.392463][T16289] ? ieee80211_register_hw+0xfd7/0x36a0 [ 3022.397997][T16289] ieee80211_register_hw+0x13d4/0x36a0 [ 3022.403440][T16289] ? __debug_object_init+0x4a1/0xe20 [ 3022.408715][T16289] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3022.414157][T16289] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3022.419684][T16289] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3022.425668][T16289] ? memset+0x20/0x40 [ 3022.429659][T16289] ? __hrtimer_init+0x134/0x260 [ 3022.434506][T16289] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3022.440224][T16289] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3022.445513][T16289] ? hwsim_register_received_nl+0x400/0x400 [ 3022.451406][T16289] ? hwsim_new_radio_nl+0x51b/0xf60 [ 3022.456612][T16289] hwsim_new_radio_nl+0x905/0xf60 [ 3022.461637][T16289] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3022.467546][T16289] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3022.473264][T16289] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3022.479578][T16289] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3022.485988][T16289] genl_rcv_msg+0x627/0xdf0 [ 3022.490484][T16289] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3022.496801][T16289] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3022.502070][T16289] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3022.507515][T16289] netlink_rcv_skb+0x15a/0x410 [ 3022.512275][T16289] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3022.518584][T16289] ? netlink_ack+0xa80/0xa80 [ 3022.523167][T16289] genl_rcv+0x24/0x40 [ 3022.527130][T16289] netlink_unicast+0x537/0x740 [ 3022.531882][T16289] ? netlink_attachskb+0x810/0x810 [ 3022.536973][T16289] ? _copy_from_iter_full+0x25c/0x870 [ 3022.542329][T16289] ? __phys_addr_symbol+0x2c/0x70 [ 3022.547334][T16289] ? __check_object_size+0x171/0x437 [ 3022.552605][T16289] netlink_sendmsg+0x882/0xe10 [ 3022.557356][T16289] ? aa_af_perm+0x260/0x260 [ 3022.561841][T16289] ? netlink_unicast+0x740/0x740 [ 3022.566766][T16289] ? netlink_unicast+0x740/0x740 [ 3022.571686][T16289] sock_sendmsg+0xcf/0x120 [ 3022.576095][T16289] ____sys_sendmsg+0x6b9/0x7d0 [ 3022.580843][T16289] ? kernel_sendmsg+0x50/0x50 [ 3022.585504][T16289] ? mark_lock+0xbc/0x1220 [ 3022.589920][T16289] ___sys_sendmsg+0x100/0x170 [ 3022.594599][T16289] ? sendmsg_copy_msghdr+0x70/0x70 [ 3022.599717][T16289] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3022.605228][T16289] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3022.610514][T16289] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3022.615966][T16289] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3022.621681][T16289] ? retint_kernel+0x2b/0x2b [ 3022.626268][T16289] ? sockfd_lookup_light+0x73/0x170 [ 3022.631452][T16289] ? sockfd_lookup_light+0x93/0x170 [ 3022.636640][T16289] __sys_sendmsg+0xec/0x1b0 [ 3022.641131][T16289] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3022.646135][T16289] ? __x64_sys_futex+0x380/0x4f0 [ 3022.651153][T16289] ? trace_hardirqs_off_caller+0x55/0x230 [ 3022.656855][T16289] ? do_syscall_64+0x21/0x7d0 [ 3022.661518][T16289] do_syscall_64+0xf6/0x7d0 [ 3022.666010][T16289] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3022.671883][T16289] RIP: 0033:0x45c849 [ 3022.675759][T16289] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3022.695353][T16289] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3022.703747][T16289] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3022.711697][T16289] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3022.719649][T16289] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3022.727602][T16289] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3022.735553][T16289] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:42:49 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:42:49 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc6b100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3022.768570][T16291] netlink: 'syz-executor.0': attribute type 8 has an invalid length. [ 3022.776789][T16291] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3022.800561][T16291] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3022.800561][T16291] !' [ 3022.810526][T16291] CPU: 1 PID: 16291 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3022.819206][T16291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3022.829270][T16291] Call Trace: [ 3022.832573][T16291] dump_stack+0x188/0x20d [ 3022.836922][T16291] sysfs_warn_dup.cold+0x1c/0x2d [ 3022.841877][T16291] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3022.848659][T16291] sysfs_create_link+0x61/0xc0 [ 3022.853443][T16291] device_add+0x71c/0x1bc0 [ 3022.857882][T16291] ? uevent_show+0x360/0x360 [ 3022.862486][T16291] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3022.868487][T16291] wiphy_register+0x1c46/0x2720 [ 3022.873481][T16291] ? wiphy_unregister+0xf90/0xf90 [ 3022.878523][T16291] ? __kmalloc+0x629/0x7a0 [ 3022.882963][T16291] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3022.888533][T16291] ieee80211_register_hw+0x13d4/0x36a0 [ 3022.894016][T16291] ? __debug_object_init+0x4a1/0xe20 [ 3022.899320][T16291] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3022.904795][T16291] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3022.910351][T16291] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3022.916348][T16291] ? memset+0x20/0x40 [ 3022.920337][T16291] ? __hrtimer_init+0x134/0x260 [ 3022.925195][T16291] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3022.930911][T16291] ? vprintk_func+0x81/0x17e [ 3022.935512][T16291] ? hwsim_register_received_nl+0x400/0x400 [ 3022.941395][T16291] hwsim_new_radio_nl+0x905/0xf60 [ 3022.946404][T16291] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3022.952289][T16291] ? cap_capable+0x1eb/0x250 [ 3022.956890][T16291] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3022.963252][T16291] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3022.969603][T16291] genl_rcv_msg+0x627/0xdf0 [ 3022.974115][T16291] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3022.980457][T16291] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3022.985928][T16291] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3022.991399][T16291] netlink_rcv_skb+0x15a/0x410 [ 3022.996157][T16291] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3023.002485][T16291] ? netlink_ack+0xa80/0xa80 [ 3023.007096][T16291] genl_rcv+0x24/0x40 [ 3023.011077][T16291] netlink_unicast+0x537/0x740 [ 3023.015852][T16291] ? netlink_attachskb+0x810/0x810 [ 3023.020962][T16291] ? _copy_from_iter_full+0x25c/0x870 [ 3023.026418][T16291] ? netlink_sendmsg+0x7dc/0xe10 [ 3023.031368][T16291] netlink_sendmsg+0x882/0xe10 [ 3023.036146][T16291] ? aa_af_perm+0x260/0x260 [ 3023.040676][T16291] ? netlink_unicast+0x740/0x740 [ 3023.045613][T16291] ? netlink_unicast+0x740/0x740 [ 3023.050551][T16291] sock_sendmsg+0xcf/0x120 [ 3023.054989][T16291] ____sys_sendmsg+0x6b9/0x7d0 [ 3023.059766][T16291] ? kernel_sendmsg+0x50/0x50 [ 3023.064441][T16291] ? mark_lock+0xbc/0x1220 [ 3023.068855][T16291] ___sys_sendmsg+0x100/0x170 [ 3023.073535][T16291] ? sendmsg_copy_msghdr+0x70/0x70 [ 3023.078651][T16291] ? __fget_files+0x329/0x4f0 [ 3023.083338][T16291] ? ksys_dup3+0x3c0/0x3c0 [ 3023.087757][T16291] ? lock_acquire+0x197/0x420 [ 3023.092445][T16291] ? __might_fault+0xef/0x1d0 [ 3023.097172][T16291] ? __fget_light+0x208/0x270 [ 3023.101867][T16291] __sys_sendmsg+0xec/0x1b0 [ 3023.106367][T16291] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3023.111398][T16291] ? __x64_sys_futex+0x380/0x4f0 [ 3023.116357][T16291] ? trace_hardirqs_off_caller+0x55/0x230 [ 3023.122077][T16291] ? do_syscall_64+0x21/0x7d0 [ 3023.126740][T16291] do_syscall_64+0xf6/0x7d0 [ 3023.131245][T16291] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3023.137143][T16291] RIP: 0033:0x45c849 [ 3023.141049][T16291] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3023.160660][T16291] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3023.169090][T16291] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3023.177058][T16291] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3023.185022][T16291] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3023.193012][T16291] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3023.200991][T16291] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3023.213830][T16297] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. 23:42:50 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3023.245181][T16297] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3023.245181][T16297] !' [ 3023.260866][T16297] CPU: 1 PID: 16297 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3023.269586][T16297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3023.279643][T16297] Call Trace: [ 3023.282941][T16297] dump_stack+0x188/0x20d [ 3023.287289][T16297] sysfs_warn_dup.cold+0x1c/0x2d [ 3023.292242][T16297] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3023.298327][T16297] sysfs_create_link+0x61/0xc0 [ 3023.303148][T16297] device_add+0x71c/0x1bc0 [ 3023.307585][T16297] ? retint_kernel+0x2b/0x2b [ 3023.312172][T16297] ? uevent_show+0x360/0x360 [ 3023.316745][T16297] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3023.322706][T16297] wiphy_register+0x1c46/0x2720 [ 3023.327544][T16297] ? wiphy_unregister+0xf90/0xf90 [ 3023.332551][T16297] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3023.338252][T16297] ? retint_kernel+0x2b/0x2b [ 3023.342832][T16297] ? ieee80211_register_hw+0xe94/0x36a0 [ 3023.348361][T16297] ieee80211_register_hw+0x13d4/0x36a0 [ 3023.353814][T16297] ? __debug_object_init+0x4a1/0xe20 [ 3023.359135][T16297] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3023.364581][T16297] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3023.370110][T16297] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3023.376072][T16297] ? memset+0x20/0x40 [ 3023.380036][T16297] ? __hrtimer_init+0x134/0x260 [ 3023.384878][T16297] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3023.390588][T16297] ? hwsim_register_received_nl+0x400/0x400 [ 3023.396467][T16297] hwsim_new_radio_nl+0x905/0xf60 [ 3023.401591][T16297] ? lockdep_hardirqs_on+0x385/0x5d0 [ 3023.406858][T16297] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3023.412745][T16297] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3023.419051][T16297] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3023.425376][T16297] genl_rcv_msg+0x627/0xdf0 [ 3023.429896][T16297] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3023.436217][T16297] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3023.441484][T16297] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3023.446932][T16297] netlink_rcv_skb+0x15a/0x410 [ 3023.451677][T16297] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3023.458000][T16297] ? netlink_ack+0xa80/0xa80 [ 3023.462581][T16297] genl_rcv+0x24/0x40 [ 3023.466544][T16297] netlink_unicast+0x537/0x740 [ 3023.471290][T16297] ? netlink_attachskb+0x810/0x810 [ 3023.476379][T16297] ? _copy_from_iter_full+0x25c/0x870 [ 3023.481754][T16297] ? __phys_addr_symbol+0x2c/0x70 [ 3023.486769][T16297] ? __check_object_size+0x171/0x437 [ 3023.492036][T16297] netlink_sendmsg+0x882/0xe10 [ 3023.496784][T16297] ? aa_af_perm+0x260/0x260 [ 3023.501322][T16297] ? netlink_unicast+0x740/0x740 [ 3023.506272][T16297] ? netlink_unicast+0x740/0x740 [ 3023.511225][T16297] sock_sendmsg+0xcf/0x120 [ 3023.515642][T16297] ____sys_sendmsg+0x6b9/0x7d0 [ 3023.520426][T16297] ? kernel_sendmsg+0x50/0x50 [ 3023.525168][T16297] ? rcu_lockdep_current_cpu_online+0x2f/0x130 [ 3023.531313][T16297] ___sys_sendmsg+0x100/0x170 [ 3023.535978][T16297] ? sendmsg_copy_msghdr+0x70/0x70 [ 3023.541080][T16297] ? __fget_files+0x329/0x4f0 [ 3023.545742][T16297] ? ksys_dup3+0x3c0/0x3c0 [ 3023.550140][T16297] ? lock_acquire+0x197/0x420 [ 3023.554814][T16297] ? __might_fault+0xef/0x1d0 [ 3023.559502][T16297] ? __fget_light+0x208/0x270 [ 3023.564187][T16297] __sys_sendmsg+0xec/0x1b0 [ 3023.568678][T16297] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3023.573687][T16297] ? __x64_sys_futex+0x380/0x4f0 [ 3023.578626][T16297] ? trace_hardirqs_off_caller+0x55/0x230 [ 3023.584337][T16297] ? do_syscall_64+0x21/0x7d0 [ 3023.589003][T16297] do_syscall_64+0xf6/0x7d0 [ 3023.593492][T16297] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3023.599379][T16297] RIP: 0033:0x45c849 [ 3023.603266][T16297] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3023.622852][T16297] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3023.631245][T16297] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3023.639385][T16297] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3023.647353][T16297] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3023.655351][T16297] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3023.663314][T16297] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3023.685147][T16295] netlink: 'syz-executor.5': attribute type 8 has an invalid length. [ 3023.693534][T16295] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3023.704907][T16295] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3023.704907][T16295] !' [ 3023.714903][T16295] CPU: 1 PID: 16295 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3023.723571][T16295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3023.733617][T16295] Call Trace: [ 3023.736906][T16295] dump_stack+0x188/0x20d [ 3023.741229][T16295] sysfs_warn_dup.cold+0x1c/0x2d [ 3023.746144][T16295] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3023.752214][T16295] sysfs_create_link+0x61/0xc0 [ 3023.756985][T16295] device_add+0x71c/0x1bc0 [ 3023.761405][T16295] ? uevent_show+0x360/0x360 [ 3023.765989][T16295] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3023.771952][T16295] wiphy_register+0x1c46/0x2720 [ 3023.776782][T16295] ? wiphy_unregister+0xf90/0xf90 [ 3023.781803][T16295] ? __kmalloc+0x629/0x7a0 [ 3023.786221][T16295] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3023.791772][T16295] ieee80211_register_hw+0x13d4/0x36a0 [ 3023.797234][T16295] ? __debug_object_init+0x4a1/0xe20 [ 3023.802516][T16295] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3023.807965][T16295] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3023.813624][T16295] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3023.819605][T16295] ? memset+0x20/0x40 [ 3023.823583][T16295] ? __hrtimer_init+0x134/0x260 [ 3023.828467][T16295] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3023.834186][T16295] ? vprintk_func+0x81/0x17e [ 3023.838778][T16295] ? hwsim_register_received_nl+0x400/0x400 [ 3023.844657][T16295] hwsim_new_radio_nl+0x905/0xf60 [ 3023.849679][T16295] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3023.855562][T16295] ? cap_capable+0x1eb/0x250 [ 3023.860296][T16295] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3023.866626][T16295] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3023.872939][T16295] genl_rcv_msg+0x627/0xdf0 [ 3023.877432][T16295] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3023.883746][T16295] ? retint_kernel+0x2b/0x2b [ 3023.888324][T16295] netlink_rcv_skb+0x15a/0x410 [ 3023.893079][T16295] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3023.899406][T16295] ? netlink_ack+0xa80/0xa80 [ 3023.904002][T16295] genl_rcv+0x24/0x40 [ 3023.907972][T16295] netlink_unicast+0x537/0x740 [ 3023.912740][T16295] ? netlink_attachskb+0x810/0x810 [ 3023.917843][T16295] ? _copy_from_iter_full+0x25c/0x870 [ 3023.923203][T16295] ? __phys_addr_symbol+0x2c/0x70 [ 3023.928206][T16295] ? __check_object_size+0x171/0x437 [ 3023.933476][T16295] netlink_sendmsg+0x882/0xe10 [ 3023.938222][T16295] ? aa_af_perm+0x260/0x260 [ 3023.942707][T16295] ? netlink_unicast+0x740/0x740 [ 3023.947624][T16295] ? netlink_unicast+0x740/0x740 [ 3023.952539][T16295] sock_sendmsg+0xcf/0x120 [ 3023.956932][T16295] ____sys_sendmsg+0x6b9/0x7d0 [ 3023.961692][T16295] ? kernel_sendmsg+0x50/0x50 [ 3023.966365][T16295] ? mark_lock+0xbc/0x1220 [ 3023.970769][T16295] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3023.976219][T16295] ___sys_sendmsg+0x100/0x170 [ 3023.980888][T16295] ? sendmsg_copy_msghdr+0x70/0x70 [ 3023.985994][T16295] ? __fget_files+0x329/0x4f0 [ 3023.990670][T16295] ? ksys_dup3+0x3c0/0x3c0 [ 3023.995074][T16295] ? lock_acquire+0x197/0x420 [ 3023.999741][T16295] ? __might_fault+0xef/0x1d0 [ 3024.004416][T16295] ? __fget_light+0x208/0x270 [ 3024.009078][T16295] __sys_sendmsg+0xec/0x1b0 [ 3024.013566][T16295] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3024.018582][T16295] ? __x64_sys_futex+0x380/0x4f0 [ 3024.023508][T16295] ? trace_hardirqs_off_caller+0x55/0x230 [ 3024.029210][T16295] ? do_syscall_64+0x21/0x7d0 [ 3024.033891][T16295] do_syscall_64+0xf6/0x7d0 [ 3024.038386][T16295] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3024.044271][T16295] RIP: 0033:0x45c849 [ 3024.048162][T16295] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3024.067752][T16295] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3024.076156][T16295] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3024.084122][T16295] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3024.092076][T16295] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3024.100388][T16295] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff 23:42:51 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc6c100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3024.142659][T16295] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:42:51 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc6b100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3024.179414][T16301] netlink: 'syz-executor.0': attribute type 8 has an invalid length. [ 3024.187534][T16301] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3024.221652][T16301] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3024.221652][T16301] !' [ 3024.247055][T16301] CPU: 1 PID: 16301 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3024.255769][T16301] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3024.265831][T16301] Call Trace: [ 3024.269136][T16301] dump_stack+0x188/0x20d [ 3024.273486][T16301] sysfs_warn_dup.cold+0x1c/0x2d [ 3024.278440][T16301] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3024.284524][T16301] sysfs_create_link+0x61/0xc0 [ 3024.289298][T16301] device_add+0x71c/0x1bc0 [ 3024.293733][T16301] ? uevent_show+0x360/0x360 [ 3024.298334][T16301] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3024.308324][T16301] wiphy_register+0x1c46/0x2720 [ 3024.313266][T16301] ? wiphy_unregister+0xf90/0xf90 [ 3024.318326][T16301] ? __kmalloc+0x629/0x7a0 [ 3024.322736][T16301] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3024.328381][T16301] ieee80211_register_hw+0x13d4/0x36a0 [ 3024.333935][T16301] ? __debug_object_init+0x4a1/0xe20 [ 3024.339215][T16301] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3024.345112][T16301] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3024.350639][T16301] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3024.356611][T16301] ? memset+0x20/0x40 [ 3024.360584][T16301] ? __hrtimer_init+0x134/0x260 [ 3024.365430][T16301] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3024.371147][T16301] ? vprintk_func+0x81/0x17e [ 3024.375723][T16301] ? hwsim_register_received_nl+0x400/0x400 [ 3024.381618][T16301] hwsim_new_radio_nl+0x905/0xf60 [ 3024.386635][T16301] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3024.392511][T16301] ? cap_capable+0x1eb/0x250 [ 3024.397085][T16301] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3024.403406][T16301] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3024.409738][T16301] genl_rcv_msg+0x627/0xdf0 [ 3024.414233][T16301] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3024.420660][T16301] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 3024.426458][T16301] netlink_rcv_skb+0x15a/0x410 [ 3024.431202][T16301] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3024.437508][T16301] ? netlink_ack+0xa80/0xa80 [ 3024.442802][T16301] genl_rcv+0x24/0x40 [ 3024.446774][T16301] netlink_unicast+0x537/0x740 [ 3024.451541][T16301] ? netlink_attachskb+0x810/0x810 [ 3024.456633][T16301] ? _copy_from_iter_full+0x25c/0x870 [ 3024.462083][T16301] ? __phys_addr_symbol+0x2c/0x70 [ 3024.467098][T16301] ? __check_object_size+0x171/0x437 [ 3024.472370][T16301] netlink_sendmsg+0x882/0xe10 [ 3024.477119][T16301] ? aa_af_perm+0x260/0x260 [ 3024.481614][T16301] ? netlink_unicast+0x740/0x740 [ 3024.486897][T16301] ? netlink_unicast+0x740/0x740 [ 3024.491816][T16301] sock_sendmsg+0xcf/0x120 [ 3024.496214][T16301] ____sys_sendmsg+0x6b9/0x7d0 [ 3024.500972][T16301] ? kernel_sendmsg+0x50/0x50 [ 3024.505697][T16301] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3024.511144][T16301] ___sys_sendmsg+0x100/0x170 [ 3024.516322][T16301] ? retint_kernel+0x2b/0x2b [ 3024.520911][T16301] ? sendmsg_copy_msghdr+0x70/0x70 [ 3024.526033][T16301] ? __fget_files+0x329/0x4f0 [ 3024.530692][T16301] ? ksys_dup3+0x3c0/0x3c0 [ 3024.535084][T16301] ? lock_acquire+0x197/0x420 [ 3024.539749][T16301] ? __might_fault+0xef/0x1d0 [ 3024.544420][T16301] ? __fget_light+0x208/0x270 [ 3024.549091][T16301] __sys_sendmsg+0xec/0x1b0 [ 3024.554531][T16301] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3024.559550][T16301] ? __x64_sys_futex+0x380/0x4f0 [ 3024.564503][T16301] ? trace_hardirqs_off_caller+0x55/0x230 [ 3024.570284][T16301] ? do_syscall_64+0x21/0x7d0 [ 3024.574966][T16301] do_syscall_64+0xf6/0x7d0 [ 3024.579482][T16301] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3024.585371][T16301] RIP: 0033:0x45c849 [ 3024.589247][T16301] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3024.608886][T16301] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e 23:42:51 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3024.617291][T16301] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3024.625301][T16301] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3024.633280][T16301] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3024.641356][T16301] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3024.649327][T16301] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3024.662440][T16308] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3024.700875][T16308] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3024.700875][T16308] !' [ 3024.719983][T16308] CPU: 0 PID: 16308 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3024.728694][T16308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3024.738754][T16308] Call Trace: [ 3024.742046][T16308] dump_stack+0x188/0x20d [ 3024.746424][T16308] sysfs_warn_dup.cold+0x1c/0x2d [ 3024.751368][T16308] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3024.757460][T16308] sysfs_create_link+0x61/0xc0 [ 3024.762210][T16308] device_add+0x71c/0x1bc0 [ 3024.766614][T16308] ? ieee80211_set_bitrate_flags+0x123/0x5c0 [ 3024.772593][T16308] ? uevent_show+0x360/0x360 [ 3024.777185][T16308] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3024.783148][T16308] wiphy_register+0x1c46/0x2720 [ 3024.787993][T16308] ? wiphy_unregister+0xf90/0xf90 [ 3024.793000][T16308] ? retint_kernel+0x2b/0x2b [ 3024.797585][T16308] ieee80211_register_hw+0x13d4/0x36a0 [ 3024.803027][T16308] ? __debug_object_init+0x4a1/0xe20 [ 3024.808298][T16308] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3024.813793][T16308] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3024.819462][T16308] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3024.825430][T16308] ? memset+0x20/0x40 [ 3024.829405][T16308] ? __hrtimer_init+0x134/0x260 [ 3024.834313][T16308] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3024.840028][T16308] ? vprintk_func+0x81/0x17e [ 3024.844622][T16308] ? hwsim_register_received_nl+0x400/0x400 [ 3024.850503][T16308] hwsim_new_radio_nl+0x905/0xf60 [ 3024.855522][T16308] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3024.861429][T16308] ? cap_capable+0x1eb/0x250 [ 3024.866019][T16308] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3024.872370][T16308] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3024.878694][T16308] genl_rcv_msg+0x627/0xdf0 [ 3024.883229][T16308] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3024.889556][T16308] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3024.894853][T16308] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3024.900484][T16308] netlink_rcv_skb+0x15a/0x410 [ 3024.905296][T16308] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3024.911621][T16308] ? netlink_ack+0xa80/0xa80 [ 3024.916204][T16308] genl_rcv+0x24/0x40 [ 3024.920225][T16308] netlink_unicast+0x537/0x740 [ 3024.924992][T16308] ? netlink_attachskb+0x810/0x810 [ 3024.930086][T16308] ? _copy_from_iter_full+0x25c/0x870 [ 3024.935489][T16308] ? __phys_addr_symbol+0x2c/0x70 [ 3024.940612][T16308] ? __check_object_size+0x171/0x437 [ 3024.945891][T16308] netlink_sendmsg+0x882/0xe10 [ 3024.950651][T16308] ? aa_af_perm+0x260/0x260 [ 3024.955145][T16308] ? netlink_unicast+0x740/0x740 [ 3024.960085][T16308] ? netlink_unicast+0x740/0x740 [ 3024.965015][T16308] sock_sendmsg+0xcf/0x120 [ 3024.969478][T16308] ____sys_sendmsg+0x6b9/0x7d0 [ 3024.974251][T16308] ? kernel_sendmsg+0x50/0x50 [ 3024.978927][T16308] ___sys_sendmsg+0x100/0x170 [ 3024.983605][T16308] ? sendmsg_copy_msghdr+0x70/0x70 [ 3024.988713][T16308] ? __fget_files+0x329/0x4f0 [ 3024.993427][T16308] ? ksys_dup3+0x3c0/0x3c0 [ 3024.997854][T16308] ? __fget_light+0x208/0x270 [ 3025.002530][T16308] __sys_sendmsg+0xec/0x1b0 [ 3025.007019][T16308] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3025.012163][T16308] ? __x64_sys_futex+0x380/0x4f0 [ 3025.017088][T16308] ? trace_hardirqs_off_caller+0x55/0x230 [ 3025.022828][T16308] ? do_syscall_64+0x21/0x7d0 [ 3025.027530][T16308] do_syscall_64+0xf6/0x7d0 [ 3025.032062][T16308] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3025.037978][T16308] RIP: 0033:0x45c849 [ 3025.041865][T16308] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3025.061469][T16308] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3025.069879][T16308] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3025.077840][T16308] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3025.085795][T16308] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3025.093848][T16308] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3025.101817][T16308] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3025.136995][T16306] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3025.155933][T16306] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3025.155933][T16306] !' [ 3025.168900][T16306] CPU: 1 PID: 16306 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3025.177595][T16306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3025.187638][T16306] Call Trace: [ 3025.190921][T16306] dump_stack+0x188/0x20d [ 3025.195243][T16306] sysfs_warn_dup.cold+0x1c/0x2d [ 3025.200199][T16306] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3025.206249][T16306] sysfs_create_link+0x61/0xc0 [ 3025.210997][T16306] device_add+0x71c/0x1bc0 [ 3025.215459][T16306] ? uevent_show+0x360/0x360 [ 3025.220045][T16306] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3025.226020][T16306] wiphy_register+0x1c46/0x2720 [ 3025.230904][T16306] ? wiphy_unregister+0xf90/0xf90 [ 3025.235999][T16306] ? __kmalloc+0x629/0x7a0 [ 3025.240399][T16306] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3025.245947][T16306] ieee80211_register_hw+0x13d4/0x36a0 [ 3025.251393][T16306] ? __debug_object_init+0x4a1/0xe20 [ 3025.256662][T16306] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3025.262105][T16306] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3025.267631][T16306] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3025.273722][T16306] ? memset+0x20/0x40 [ 3025.277702][T16306] ? __hrtimer_init+0x134/0x260 [ 3025.282593][T16306] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3025.288773][T16306] ? vprintk_func+0x81/0x17e [ 3025.293359][T16306] ? hwsim_register_received_nl+0x400/0x400 [ 3025.299240][T16306] hwsim_new_radio_nl+0x905/0xf60 [ 3025.304250][T16306] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3025.310131][T16306] ? cap_capable+0x1eb/0x250 [ 3025.314708][T16306] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3025.321012][T16306] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3025.327355][T16306] genl_rcv_msg+0x627/0xdf0 [ 3025.331843][T16306] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3025.338238][T16306] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3025.343544][T16306] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3025.348982][T16306] netlink_rcv_skb+0x15a/0x410 [ 3025.353731][T16306] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3025.360041][T16306] ? netlink_ack+0xa80/0xa80 [ 3025.364618][T16306] genl_rcv+0x24/0x40 [ 3025.368579][T16306] netlink_unicast+0x537/0x740 [ 3025.373327][T16306] ? netlink_attachskb+0x810/0x810 [ 3025.378416][T16306] ? _copy_from_iter_full+0x25c/0x870 [ 3025.383766][T16306] ? __phys_addr_symbol+0x2c/0x70 [ 3025.388769][T16306] ? __check_object_size+0x171/0x437 [ 3025.394033][T16306] netlink_sendmsg+0x882/0xe10 [ 3025.398778][T16306] ? netlink_unicast+0x740/0x740 [ 3025.403698][T16306] ? netlink_unicast+0x740/0x740 [ 3025.408611][T16306] sock_sendmsg+0xcf/0x120 [ 3025.413004][T16306] ____sys_sendmsg+0x6b9/0x7d0 [ 3025.417747][T16306] ? kernel_sendmsg+0x50/0x50 [ 3025.422403][T16306] ? mark_lock+0xbc/0x1220 [ 3025.426802][T16306] ___sys_sendmsg+0x100/0x170 [ 3025.431480][T16306] ? sendmsg_copy_msghdr+0x70/0x70 [ 3025.436587][T16306] ? __fget_files+0x329/0x4f0 [ 3025.441246][T16306] ? ksys_dup3+0x3c0/0x3c0 [ 3025.445640][T16306] ? lock_acquire+0x197/0x420 [ 3025.450296][T16306] ? __might_fault+0xef/0x1d0 [ 3025.454954][T16306] ? __fget_light+0x208/0x270 [ 3025.459613][T16306] __sys_sendmsg+0xec/0x1b0 [ 3025.464096][T16306] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3025.469121][T16306] ? do_syscall_64+0xbc/0x7d0 [ 3025.473790][T16306] do_syscall_64+0xf6/0x7d0 [ 3025.478274][T16306] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3025.484150][T16306] RIP: 0033:0x45c849 [ 3025.488030][T16306] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3025.507611][T16306] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3025.516007][T16306] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3025.523959][T16306] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3025.531909][T16306] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3025.539872][T16306] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3025.547834][T16306] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3025.560560][T16315] netlink: 'syz-executor.0': attribute type 8 has an invalid length. [ 3025.578951][T16315] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3025.594371][T16315] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3025.594371][T16315] !' [ 3025.610362][T16315] CPU: 0 PID: 16315 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3025.619158][T16315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3025.629222][T16315] Call Trace: [ 3025.632512][T16315] dump_stack+0x188/0x20d [ 3025.636840][T16315] sysfs_warn_dup.cold+0x1c/0x2d [ 3025.641834][T16315] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3025.647898][T16315] sysfs_create_link+0x61/0xc0 [ 3025.652656][T16315] device_add+0x71c/0x1bc0 [ 3025.657066][T16315] ? uevent_show+0x360/0x360 [ 3025.661643][T16315] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3025.667667][T16315] wiphy_register+0x1c46/0x2720 [ 3025.672520][T16315] ? wiphy_unregister+0xf90/0xf90 [ 3025.677538][T16315] ? __kmalloc+0x629/0x7a0 [ 3025.681941][T16315] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3025.687474][T16315] ieee80211_register_hw+0x13d4/0x36a0 [ 3025.692938][T16315] ? __debug_object_init+0x4a1/0xe20 [ 3025.698211][T16315] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3025.703655][T16315] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3025.709204][T16315] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3025.715169][T16315] ? memset+0x20/0x40 [ 3025.719137][T16315] ? __hrtimer_init+0x134/0x260 [ 3025.723970][T16315] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3025.729670][T16315] ? vprintk_func+0x81/0x17e [ 3025.734266][T16315] ? hwsim_register_received_nl+0x400/0x400 [ 3025.740160][T16315] hwsim_new_radio_nl+0x905/0xf60 [ 3025.745167][T16315] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3025.751046][T16315] ? cap_capable+0x1eb/0x250 [ 3025.755619][T16315] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3025.761923][T16315] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3025.768230][T16315] genl_rcv_msg+0x627/0xdf0 [ 3025.772732][T16315] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3025.779058][T16315] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3025.784323][T16315] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3025.789767][T16315] netlink_rcv_skb+0x15a/0x410 [ 3025.794524][T16315] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3025.800890][T16315] ? netlink_ack+0xa80/0xa80 [ 3025.805481][T16315] genl_rcv+0x24/0x40 [ 3025.809459][T16315] netlink_unicast+0x537/0x740 [ 3025.814224][T16315] ? netlink_attachskb+0x810/0x810 [ 3025.819324][T16315] ? _copy_from_iter_full+0x25c/0x870 [ 3025.824684][T16315] ? __phys_addr_symbol+0x2c/0x70 [ 3025.829706][T16315] ? __check_object_size+0x171/0x437 [ 3025.834977][T16315] netlink_sendmsg+0x882/0xe10 [ 3025.839725][T16315] ? aa_af_perm+0x260/0x260 [ 3025.844215][T16315] ? netlink_unicast+0x740/0x740 [ 3025.849138][T16315] ? netlink_unicast+0x740/0x740 [ 3025.854063][T16315] sock_sendmsg+0xcf/0x120 [ 3025.858465][T16315] ____sys_sendmsg+0x6b9/0x7d0 [ 3025.863240][T16315] ? kernel_sendmsg+0x50/0x50 [ 3025.867912][T16315] ___sys_sendmsg+0x100/0x170 [ 3025.872574][T16315] ? sendmsg_copy_msghdr+0x70/0x70 [ 3025.877676][T16315] ? __fget_files+0x329/0x4f0 [ 3025.882340][T16315] ? ksys_dup3+0x3c0/0x3c0 [ 3025.886737][T16315] ? lock_acquire+0x197/0x420 [ 3025.891394][T16315] ? __might_fault+0xef/0x1d0 [ 3025.896053][T16315] ? __fget_light+0x208/0x270 [ 3025.900713][T16315] __sys_sendmsg+0xec/0x1b0 [ 3025.905206][T16315] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3025.910213][T16315] ? __x64_sys_futex+0x380/0x4f0 [ 3025.915136][T16315] ? trace_hardirqs_off_caller+0x55/0x230 [ 3025.920837][T16315] ? do_syscall_64+0x21/0x7d0 [ 3025.925496][T16315] do_syscall_64+0xf6/0x7d0 [ 3025.930025][T16315] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3025.935899][T16315] RIP: 0033:0x45c849 [ 3025.939775][T16315] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3025.959356][T16315] RSP: 002b:00007fda9c338c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3025.967749][T16315] RAX: ffffffffffffffda RBX: 00007fda9c3396d4 RCX: 000000000045c849 [ 3025.975702][T16315] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3025.983649][T16315] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3025.991598][T16315] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3025.999563][T16315] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac 23:43:04 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024050705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:04 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc61100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:04 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60020011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:04 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80148c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:04 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:04 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3037.715219][T16332] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3037.735568][T16332] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3037.735568][T16332] !' [ 3037.745862][T16332] CPU: 1 PID: 16332 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3037.754533][T16332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3037.764570][T16332] Call Trace: [ 3037.767847][T16332] dump_stack+0x188/0x20d [ 3037.772166][T16332] sysfs_warn_dup.cold+0x1c/0x2d [ 3037.777092][T16332] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3037.783159][T16332] sysfs_create_link+0x61/0xc0 [ 3037.787916][T16332] device_add+0x71c/0x1bc0 [ 3037.792316][T16332] ? ieee80211_set_bitrate_flags+0x81/0x5c0 [ 3037.798197][T16332] ? uevent_show+0x360/0x360 [ 3037.802780][T16332] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3037.808756][T16332] wiphy_register+0x1c46/0x2720 [ 3037.813592][T16332] ? wiphy_unregister+0xf90/0xf90 [ 3037.818610][T16332] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3037.824361][T16332] ? retint_kernel+0x2b/0x2b [ 3037.828938][T16332] ? ieee80211_register_hw+0x243e/0x36a0 [ 3037.834555][T16332] ieee80211_register_hw+0x13d4/0x36a0 [ 3037.840013][T16332] ? calibrate_delay.cold+0x3db/0x3f6 [ 3037.845404][T16332] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3037.850869][T16332] ? hrtimer_init+0x251/0x320 [ 3037.855646][T16332] ? memset+0x20/0x40 [ 3037.859629][T16332] ? __hrtimer_init+0x134/0x260 [ 3037.864520][T16332] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3037.870259][T16332] ? vprintk_func+0x81/0x17e [ 3037.874869][T16332] ? hwsim_register_received_nl+0x400/0x400 [ 3037.880769][T16332] hwsim_new_radio_nl+0x905/0xf60 [ 3037.885799][T16332] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3037.891312][T16332] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3037.897202][T16332] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3037.902928][T16332] genl_rcv_msg+0x627/0xdf0 [ 3037.907452][T16332] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3037.913784][T16332] ? retint_kernel+0x2b/0x2b [ 3037.918379][T16332] netlink_rcv_skb+0x15a/0x410 [ 3037.923140][T16332] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3037.929474][T16332] ? netlink_ack+0xa80/0xa80 [ 3037.934064][T16332] genl_rcv+0x24/0x40 [ 3037.938086][T16332] netlink_unicast+0x537/0x740 [ 3037.942859][T16332] ? netlink_attachskb+0x810/0x810 [ 3037.947985][T16332] ? _copy_from_iter_full+0x25c/0x870 [ 3037.953344][T16332] ? __phys_addr_symbol+0x2c/0x70 [ 3037.958353][T16332] ? __check_object_size+0x171/0x437 [ 3037.963656][T16332] netlink_sendmsg+0x882/0xe10 [ 3037.968424][T16332] ? aa_af_perm+0x260/0x260 [ 3037.972926][T16332] ? netlink_unicast+0x740/0x740 [ 3037.977863][T16332] ? netlink_unicast+0x740/0x740 [ 3037.982795][T16332] sock_sendmsg+0xcf/0x120 [ 3037.987208][T16332] ____sys_sendmsg+0x6b9/0x7d0 [ 3037.991959][T16332] ? kernel_sendmsg+0x50/0x50 [ 3037.997318][T16332] ? mark_lock+0xbc/0x1220 [ 3038.001741][T16332] ___sys_sendmsg+0x100/0x170 [ 3038.006519][T16332] ? sendmsg_copy_msghdr+0x70/0x70 [ 3038.011638][T16332] ? __fget_files+0x329/0x4f0 [ 3038.016369][T16332] ? ksys_dup3+0x3c0/0x3c0 [ 3038.020782][T16332] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3038.026502][T16332] ? retint_kernel+0x2b/0x2b [ 3038.031097][T16332] ? __fget_light+0x208/0x270 [ 3038.035773][T16332] __sys_sendmsg+0xec/0x1b0 [ 3038.040276][T16332] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3038.045334][T16332] ? trace_hardirqs_off_caller+0x55/0x230 [ 3038.051067][T16332] ? do_syscall_64+0x21/0x7d0 [ 3038.055742][T16332] do_syscall_64+0xf6/0x7d0 [ 3038.060254][T16332] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3038.066191][T16332] RIP: 0033:0x45c849 [ 3038.070084][T16332] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3038.089805][T16332] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3038.098217][T16332] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3038.106211][T16332] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3038.114165][T16332] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3038.122125][T16332] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3038.130103][T16332] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:43:05 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b800a8c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3038.161231][T16331] netlink: 18458 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3038.300753][T16329] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3038.337981][T16329] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3038.337981][T16329] !' [ 3038.357808][T16329] CPU: 1 PID: 16329 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3038.366511][T16329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3038.376572][T16329] Call Trace: [ 3038.379867][T16329] dump_stack+0x188/0x20d [ 3038.384208][T16329] sysfs_warn_dup.cold+0x1c/0x2d [ 3038.389150][T16329] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3038.395330][T16329] sysfs_create_link+0x61/0xc0 [ 3038.400088][T16329] device_add+0x71c/0x1bc0 [ 3038.404495][T16329] ? uevent_show+0x360/0x360 [ 3038.409066][T16329] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3038.415024][T16329] wiphy_register+0x1c46/0x2720 [ 3038.419978][T16329] ? wiphy_unregister+0xf90/0xf90 [ 3038.425104][T16329] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3038.430822][T16329] ? retint_kernel+0x2b/0x2b [ 3038.435403][T16329] ? ieee80211_register_hw+0x12eb/0x36a0 [ 3038.441072][T16329] ieee80211_register_hw+0x13d4/0x36a0 [ 3038.446517][T16329] ? __debug_object_init+0x4a1/0xe20 [ 3038.451860][T16329] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3038.457398][T16329] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3038.462933][T16329] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3038.468896][T16329] ? memset+0x20/0x40 [ 3038.472861][T16329] ? __hrtimer_init+0x134/0x260 [ 3038.477697][T16329] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3038.483464][T16329] ? hwsim_register_received_nl+0x400/0x400 [ 3038.489353][T16329] hwsim_new_radio_nl+0x905/0xf60 [ 3038.494379][T16329] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3038.500300][T16329] ? cap_capable+0x1eb/0x250 [ 3038.504886][T16329] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3038.511204][T16329] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3038.517588][T16329] genl_rcv_msg+0x627/0xdf0 [ 3038.522086][T16329] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3038.528792][T16329] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3038.534066][T16329] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3038.539550][T16329] netlink_rcv_skb+0x15a/0x410 [ 3038.544294][T16329] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3038.550602][T16329] ? netlink_ack+0xa80/0xa80 [ 3038.555178][T16329] genl_rcv+0x24/0x40 [ 3038.559138][T16329] netlink_unicast+0x537/0x740 [ 3038.563892][T16329] ? netlink_attachskb+0x810/0x810 [ 3038.568977][T16329] ? _copy_from_iter_full+0x25c/0x870 [ 3038.574424][T16329] ? __phys_addr_symbol+0x2c/0x70 [ 3038.579424][T16329] ? __check_object_size+0x171/0x437 [ 3038.584699][T16329] netlink_sendmsg+0x882/0xe10 [ 3038.589457][T16329] ? aa_af_perm+0x260/0x260 [ 3038.593936][T16329] ? netlink_unicast+0x740/0x740 [ 3038.598872][T16329] ? netlink_unicast+0x740/0x740 [ 3038.603788][T16329] sock_sendmsg+0xcf/0x120 [ 3038.608193][T16329] ____sys_sendmsg+0x6b9/0x7d0 [ 3038.612937][T16329] ? kernel_sendmsg+0x50/0x50 [ 3038.617594][T16329] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3038.623042][T16329] ___sys_sendmsg+0x100/0x170 [ 3038.627707][T16329] ? sendmsg_copy_msghdr+0x70/0x70 [ 3038.632812][T16329] ? __fget_files+0x329/0x4f0 [ 3038.637469][T16329] ? ksys_dup3+0x3c0/0x3c0 [ 3038.641860][T16329] ? lock_acquire+0x197/0x420 [ 3038.646513][T16329] ? __might_fault+0xef/0x1d0 [ 3038.651181][T16329] ? __fget_light+0x208/0x270 [ 3038.655836][T16329] __sys_sendmsg+0xec/0x1b0 [ 3038.660340][T16329] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3038.665368][T16329] ? trace_hardirqs_off_caller+0x55/0x230 [ 3038.671092][T16329] ? do_syscall_64+0x21/0x7d0 [ 3038.675749][T16329] do_syscall_64+0xf6/0x7d0 [ 3038.680239][T16329] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3038.686149][T16329] RIP: 0033:0x45c849 [ 3038.690024][T16329] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 23:43:05 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60030011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3038.709727][T16329] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3038.718149][T16329] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3038.726111][T16329] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3038.734068][T16329] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3038.742114][T16329] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3038.750073][T16329] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:43:05 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60020011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3038.783416][T16335] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3038.855332][T16335] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3038.855332][T16335] !' [ 3038.883824][T16335] CPU: 0 PID: 16335 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3038.892545][T16335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3038.902709][T16335] Call Trace: [ 3038.905990][T16335] dump_stack+0x188/0x20d [ 3038.910310][T16335] sysfs_warn_dup.cold+0x1c/0x2d [ 3038.915366][T16335] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3038.921421][T16335] sysfs_create_link+0x61/0xc0 [ 3038.926176][T16335] device_add+0x71c/0x1bc0 [ 3038.930589][T16335] ? __sanitizer_cov_trace_switch+0x40/0x70 [ 3038.936465][T16335] ? uevent_show+0x360/0x360 [ 3038.941038][T16335] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3038.947003][T16335] wiphy_register+0x1c46/0x2720 [ 3038.951852][T16335] ? wiphy_unregister+0xf90/0xf90 [ 3038.956938][T16335] ? ieee80211_register_hw+0x1136/0x36a0 [ 3038.962568][T16335] ieee80211_register_hw+0x13d4/0x36a0 [ 3038.968050][T16335] ? calibrate_delay.cold+0x3db/0x3f6 [ 3038.973413][T16335] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3038.978939][T16335] ? retint_kernel+0x2b/0x2b [ 3038.983523][T16335] ? __hrtimer_init+0x134/0x260 [ 3038.988359][T16335] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3038.994102][T16335] ? hwsim_register_received_nl+0x400/0x400 [ 3039.000028][T16335] hwsim_new_radio_nl+0x905/0xf60 [ 3039.005036][T16335] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3039.010909][T16335] ? cap_capable+0x1eb/0x250 [ 3039.015527][T16335] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3039.021831][T16335] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3039.028153][T16335] genl_rcv_msg+0x627/0xdf0 [ 3039.032654][T16335] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3039.039001][T16335] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3039.044713][T16335] netlink_rcv_skb+0x15a/0x410 [ 3039.049464][T16335] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3039.055789][T16335] ? netlink_ack+0xa80/0xa80 [ 3039.060369][T16335] genl_rcv+0x24/0x40 [ 3039.064332][T16335] netlink_unicast+0x537/0x740 [ 3039.069078][T16335] ? netlink_attachskb+0x810/0x810 [ 3039.074191][T16335] ? _copy_from_iter_full+0x25c/0x870 [ 3039.079571][T16335] ? __phys_addr_symbol+0x2c/0x70 [ 3039.084581][T16335] ? __check_object_size+0x171/0x437 [ 3039.089857][T16335] netlink_sendmsg+0x882/0xe10 [ 3039.094619][T16335] ? aa_af_perm+0x260/0x260 [ 3039.099131][T16335] ? netlink_unicast+0x740/0x740 [ 3039.104075][T16335] ? netlink_unicast+0x740/0x740 [ 3039.109004][T16335] sock_sendmsg+0xcf/0x120 [ 3039.113426][T16335] ____sys_sendmsg+0x6b9/0x7d0 [ 3039.118186][T16335] ? kernel_sendmsg+0x50/0x50 [ 3039.122851][T16335] ? mark_lock+0xbc/0x1220 [ 3039.127275][T16335] ___sys_sendmsg+0x100/0x170 [ 3039.131951][T16335] ? sendmsg_copy_msghdr+0x70/0x70 [ 3039.137057][T16335] ? __fget_files+0x329/0x4f0 [ 3039.141731][T16335] ? ksys_dup3+0x3c0/0x3c0 [ 3039.146158][T16335] ? lock_acquire+0x209/0x420 [ 3039.150876][T16335] ? __fget_light+0x208/0x270 [ 3039.155545][T16335] __sys_sendmsg+0xec/0x1b0 [ 3039.160055][T16335] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3039.165096][T16335] ? do_syscall_64+0xbc/0x7d0 [ 3039.169813][T16335] ? __x64_sys_sendmsg+0x1/0xb0 [ 3039.174653][T16335] do_syscall_64+0xf6/0x7d0 [ 3039.179144][T16335] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3039.185022][T16335] RIP: 0033:0x45c849 [ 3039.188912][T16335] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3039.208494][T16335] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3039.216974][T16335] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3039.224941][T16335] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3039.232906][T16335] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3039.240873][T16335] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3039.248835][T16335] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:43:06 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b800a8c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3039.279844][T16340] netlink: 18458 bytes leftover after parsing attributes in process `syz-executor.3'. 23:43:06 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60040011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3039.414993][T16343] netlink: 18458 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3039.569513][T16345] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3039.604338][T16345] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3039.604338][T16345] !' [ 3039.625884][T16345] CPU: 0 PID: 16345 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3039.634579][T16345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3039.644637][T16345] Call Trace: [ 3039.647931][T16345] dump_stack+0x188/0x20d [ 3039.652278][T16345] sysfs_warn_dup.cold+0x1c/0x2d [ 3039.657241][T16345] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3039.663324][T16345] sysfs_create_link+0x61/0xc0 [ 3039.668106][T16345] device_add+0x71c/0x1bc0 23:43:06 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60020011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3039.672537][T16345] ? retint_kernel+0x2b/0x2b [ 3039.677139][T16345] ? uevent_show+0x360/0x360 [ 3039.681744][T16345] wiphy_register+0x1c46/0x2720 [ 3039.686615][T16345] ? wiphy_unregister+0xf90/0xf90 [ 3039.691652][T16345] ? retint_kernel+0x2b/0x2b [ 3039.696257][T16345] ? ieee80211_register_hw+0x1375/0x36a0 [ 3039.701889][T16345] ieee80211_register_hw+0x13d4/0x36a0 [ 3039.707350][T16345] ? __debug_object_init+0x4a1/0xe20 [ 3039.712622][T16345] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3039.718074][T16345] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3039.723621][T16345] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3039.729593][T16345] ? memset+0x20/0x40 [ 3039.733584][T16345] ? __hrtimer_init+0x134/0x260 [ 3039.738443][T16345] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3039.744153][T16345] ? vprintk_func+0x81/0x17e [ 3039.748756][T16345] ? hwsim_register_received_nl+0x400/0x400 [ 3039.754665][T16345] hwsim_new_radio_nl+0x905/0xf60 [ 3039.759683][T16345] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3039.764949][T16345] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3039.770836][T16345] genl_rcv_msg+0x627/0xdf0 [ 3039.775330][T16345] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3039.781642][T16345] ? retint_kernel+0x2b/0x2b [ 3039.786274][T16345] netlink_rcv_skb+0x15a/0x410 [ 3039.791032][T16345] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3039.797441][T16345] ? netlink_ack+0xa80/0xa80 [ 3039.802018][T16345] genl_rcv+0x24/0x40 [ 3039.805992][T16345] netlink_unicast+0x537/0x740 [ 3039.810740][T16345] ? netlink_attachskb+0x810/0x810 [ 3039.815829][T16345] ? _copy_from_iter_full+0x25c/0x870 [ 3039.821227][T16345] ? __phys_addr_symbol+0x2c/0x70 [ 3039.826235][T16345] ? __check_object_size+0x171/0x437 [ 3039.831506][T16345] netlink_sendmsg+0x882/0xe10 [ 3039.836257][T16345] ? aa_af_perm+0x260/0x260 [ 3039.840748][T16345] ? netlink_unicast+0x740/0x740 [ 3039.845703][T16345] ? netlink_unicast+0x740/0x740 [ 3039.850635][T16345] sock_sendmsg+0xcf/0x120 [ 3039.855049][T16345] ____sys_sendmsg+0x6b9/0x7d0 [ 3039.859828][T16345] ? kernel_sendmsg+0x50/0x50 [ 3039.864559][T16345] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3039.870046][T16345] ___sys_sendmsg+0x100/0x170 [ 3039.874721][T16345] ? sendmsg_copy_msghdr+0x70/0x70 [ 3039.879878][T16345] ? __fget_files+0x38d/0x4f0 [ 3039.884550][T16345] ? __fget_files+0x329/0x4f0 [ 3039.889215][T16345] ? ksys_dup3+0x3c0/0x3c0 [ 3039.893610][T16345] ? lock_acquire+0x197/0x420 [ 3039.898321][T16345] ? __might_fault+0xef/0x1d0 [ 3039.903001][T16345] ? __fget_light+0x208/0x270 [ 3039.907676][T16345] __sys_sendmsg+0xec/0x1b0 [ 3039.912162][T16345] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3039.917178][T16345] ? __x64_sys_futex+0x380/0x4f0 [ 3039.922104][T16345] ? trace_hardirqs_off_caller+0x55/0x230 [ 3039.927809][T16345] ? do_syscall_64+0x21/0x7d0 [ 3039.932469][T16345] do_syscall_64+0xf6/0x7d0 [ 3039.936958][T16345] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3039.942826][T16345] RIP: 0033:0x45c849 [ 3039.946699][T16345] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3039.966302][T16345] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3039.974705][T16345] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3039.982687][T16345] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3039.990677][T16345] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3039.998649][T16345] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3040.006605][T16345] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3040.045488][T16352] netlink: 18458 bytes leftover after parsing attributes in process `syz-executor.0'. 23:43:20 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024060705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:20 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60050011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:20 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60030011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:20 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:20 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:20 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3053.559234][T16367] netlink: 'syz-executor.0': attribute type 8 has an invalid length. [ 3053.567547][T16367] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3053.593619][T16367] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3053.593619][T16367] !' [ 3053.605141][T16367] CPU: 0 PID: 16367 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3053.613826][T16367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3053.623877][T16367] Call Trace: [ 3053.627158][T16367] dump_stack+0x188/0x20d [ 3053.631490][T16367] sysfs_warn_dup.cold+0x1c/0x2d [ 3053.636434][T16367] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3053.642502][T16367] sysfs_create_link+0x61/0xc0 [ 3053.647301][T16367] device_add+0x71c/0x1bc0 [ 3053.651720][T16367] ? uevent_show+0x360/0x360 [ 3053.656311][T16367] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3053.662291][T16367] wiphy_register+0x1c46/0x2720 [ 3053.667134][T16367] ? wiphy_unregister+0xf90/0xf90 [ 3053.672153][T16367] ? retint_kernel+0x2b/0x2b [ 3053.676742][T16367] ? ieee80211_register_hw+0x129c/0x36a0 [ 3053.682430][T16367] ieee80211_register_hw+0x13d4/0x36a0 [ 3053.687889][T16367] ? __debug_object_init+0x4a1/0xe20 [ 3053.693177][T16367] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3053.698642][T16367] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3053.704181][T16367] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3053.710158][T16367] ? memset+0x20/0x40 [ 3053.714141][T16367] ? __hrtimer_init+0x134/0x260 [ 3053.718986][T16367] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3053.724698][T16367] ? hwsim_register_received_nl+0x400/0x400 [ 3053.730612][T16367] hwsim_new_radio_nl+0x905/0xf60 [ 3053.735645][T16367] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3053.741098][T16367] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3053.746974][T16367] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3053.752791][T16367] genl_rcv_msg+0x627/0xdf0 [ 3053.757302][T16367] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3053.763636][T16367] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 3053.769446][T16367] netlink_rcv_skb+0x15a/0x410 [ 3053.774213][T16367] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3053.780547][T16367] ? netlink_ack+0xa80/0xa80 [ 3053.785137][T16367] genl_rcv+0x24/0x40 [ 3053.789103][T16367] netlink_unicast+0x537/0x740 [ 3053.793869][T16367] ? netlink_attachskb+0x810/0x810 [ 3053.798973][T16367] ? _copy_from_iter_full+0x25c/0x870 [ 3053.804328][T16367] ? __phys_addr_symbol+0x2c/0x70 [ 3053.809346][T16367] ? __check_object_size+0x171/0x437 [ 3053.814642][T16367] netlink_sendmsg+0x882/0xe10 [ 3053.819420][T16367] ? aa_af_perm+0x260/0x260 [ 3053.823931][T16367] ? netlink_unicast+0x740/0x740 [ 3053.828909][T16367] ? netlink_unicast+0x740/0x740 [ 3053.833842][T16367] sock_sendmsg+0xcf/0x120 [ 3053.838268][T16367] ____sys_sendmsg+0x6b9/0x7d0 [ 3053.843072][T16367] ? kernel_sendmsg+0x50/0x50 [ 3053.847745][T16367] ? sendmsg_copy_msghdr+0x16/0x70 [ 3053.852859][T16367] ___sys_sendmsg+0x100/0x170 [ 3053.857542][T16367] ? sendmsg_copy_msghdr+0x70/0x70 [ 3053.862662][T16367] ? __fget_files+0x329/0x4f0 [ 3053.867334][T16367] ? ksys_dup3+0x3c0/0x3c0 [ 3053.871745][T16367] ? lock_acquire+0x197/0x420 [ 3053.876473][T16367] ? __might_fault+0xef/0x1d0 [ 3053.881157][T16367] ? __fget_light+0x208/0x270 [ 3053.885831][T16367] __sys_sendmsg+0xec/0x1b0 [ 3053.890332][T16367] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3053.895357][T16367] ? __x64_sys_futex+0x380/0x4f0 [ 3053.900326][T16367] ? trace_hardirqs_off_caller+0x55/0x230 [ 3053.906047][T16367] ? do_syscall_64+0x21/0x7d0 [ 3053.910725][T16367] do_syscall_64+0xf6/0x7d0 [ 3053.915236][T16367] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3053.921142][T16367] RIP: 0033:0x45c849 [ 3053.925044][T16367] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3053.944826][T16367] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3053.953278][T16367] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3053.961334][T16367] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3053.969319][T16367] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3053.977473][T16367] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3053.985497][T16367] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3054.003734][T16366] netlink: 18458 bytes leftover after parsing attributes in process `syz-executor.5'. 23:43:21 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d26180788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:21 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3054.150971][T16368] netlink: 12042 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3054.308583][T16371] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3054.335467][T16371] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3054.335467][T16371] !' [ 3054.351320][T16371] CPU: 0 PID: 16371 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3054.360028][T16371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3054.370069][T16371] Call Trace: [ 3054.373346][T16371] dump_stack+0x188/0x20d [ 3054.377702][T16371] sysfs_warn_dup.cold+0x1c/0x2d [ 3054.382709][T16371] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3054.388783][T16371] sysfs_create_link+0x61/0xc0 [ 3054.393545][T16371] device_add+0x71c/0x1bc0 [ 3054.397948][T16371] ? __sanitizer_cov_trace_switch+0x32/0x70 [ 3054.403872][T16371] ? uevent_show+0x360/0x360 [ 3054.408462][T16371] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3054.414447][T16371] wiphy_register+0x1c46/0x2720 [ 3054.419333][T16371] ? wiphy_unregister+0xf90/0xf90 [ 3054.424348][T16371] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3054.430060][T16371] ? retint_kernel+0x2b/0x2b [ 3054.434649][T16371] ? ieee80211_register_hw+0x243e/0x36a0 [ 3054.440271][T16371] ieee80211_register_hw+0x13d4/0x36a0 [ 3054.445717][T16371] ? __debug_object_init+0x4a1/0xe20 [ 3054.450988][T16371] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3054.456430][T16371] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3054.461995][T16371] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3054.467957][T16371] ? memset+0x20/0x40 [ 3054.471931][T16371] ? __hrtimer_init+0x134/0x260 [ 3054.476852][T16371] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3054.482559][T16371] ? hwsim_register_received_nl+0x400/0x400 [ 3054.488479][T16371] hwsim_new_radio_nl+0x905/0xf60 [ 3054.493487][T16371] ? retint_kernel+0x2b/0x2b [ 3054.498057][T16371] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3054.503941][T16371] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3054.510248][T16371] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3054.516556][T16371] genl_rcv_msg+0x627/0xdf0 [ 3054.521059][T16371] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3054.527395][T16371] ? retint_kernel+0x2b/0x2b [ 3054.531976][T16371] netlink_rcv_skb+0x15a/0x410 [ 3054.536719][T16371] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3054.543045][T16371] ? netlink_ack+0xa80/0xa80 [ 3054.547626][T16371] genl_rcv+0x24/0x40 [ 3054.551592][T16371] netlink_unicast+0x537/0x740 [ 3054.556356][T16371] ? netlink_attachskb+0x810/0x810 [ 3054.561464][T16371] ? _copy_from_iter_full+0x25c/0x870 [ 3054.566824][T16371] ? __phys_addr_symbol+0x2c/0x70 [ 3054.571833][T16371] ? __check_object_size+0x171/0x437 [ 3054.577113][T16371] netlink_sendmsg+0x882/0xe10 [ 3054.581872][T16371] ? aa_af_perm+0x260/0x260 [ 3054.586481][T16371] ? netlink_unicast+0x740/0x740 [ 3054.591456][T16371] ? netlink_unicast+0x740/0x740 [ 3054.596424][T16371] sock_sendmsg+0xcf/0x120 [ 3054.600827][T16371] ____sys_sendmsg+0x6b9/0x7d0 [ 3054.605577][T16371] ? kernel_sendmsg+0x50/0x50 [ 3054.610240][T16371] ? mark_lock+0xbc/0x1220 [ 3054.614645][T16371] ___sys_sendmsg+0x100/0x170 [ 3054.619320][T16371] ? sendmsg_copy_msghdr+0x70/0x70 [ 3054.624445][T16371] ? __fget_files+0x329/0x4f0 [ 3054.629120][T16371] ? ksys_dup3+0x3c0/0x3c0 [ 3054.633538][T16371] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3054.639257][T16371] ? retint_kernel+0x2b/0x2b [ 3054.643842][T16371] ? __fget_light+0x208/0x270 [ 3054.648513][T16371] __sys_sendmsg+0xec/0x1b0 [ 3054.653029][T16371] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3054.658038][T16371] ? __x64_sys_futex+0x380/0x4f0 [ 3054.662980][T16371] ? trace_hardirqs_off_caller+0x55/0x230 [ 3054.668714][T16371] ? do_syscall_64+0x21/0x7d0 [ 3054.673379][T16371] do_syscall_64+0xf6/0x7d0 [ 3054.677867][T16371] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3054.683739][T16371] RIP: 0033:0x45c849 [ 3054.687618][T16371] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 23:43:21 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60060011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3054.707208][T16371] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3054.715609][T16371] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3054.723571][T16371] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3054.731529][T16371] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3054.739495][T16371] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3054.747467][T16371] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3054.779807][T16373] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.5'. 23:43:21 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60050011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3054.838524][T16373] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3054.838524][T16373] !' [ 3054.866864][T16373] CPU: 1 PID: 16373 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3054.875582][T16373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3054.885647][T16373] Call Trace: [ 3054.888950][T16373] dump_stack+0x188/0x20d [ 3054.893297][T16373] sysfs_warn_dup.cold+0x1c/0x2d [ 3054.898251][T16373] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3054.904338][T16373] sysfs_create_link+0x61/0xc0 [ 3054.909117][T16373] device_add+0x71c/0x1bc0 [ 3054.913556][T16373] ? uevent_show+0x360/0x360 [ 3054.918153][T16373] wiphy_register+0x1c46/0x2720 [ 3054.923170][T16373] ? wiphy_unregister+0xf90/0xf90 [ 3054.928220][T16373] ? __kmalloc+0x629/0x7a0 [ 3054.932630][T16373] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3054.938162][T16373] ? ieee80211_mcs_to_chains+0xae/0x130 [ 3054.943696][T16373] ? __sanitizer_cov_trace_pc+0x37/0x50 [ 3054.949237][T16373] ieee80211_register_hw+0x13d4/0x36a0 [ 3054.954708][T16373] ? __debug_object_init+0x4a1/0xe20 [ 3054.960014][T16373] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3054.965469][T16373] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3054.970999][T16373] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3054.976974][T16373] ? memset+0x20/0x40 [ 3054.980952][T16373] ? __hrtimer_init+0x134/0x260 [ 3054.985802][T16373] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3054.991578][T16373] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3054.996987][T16373] ? hwsim_register_received_nl+0x400/0x400 [ 3055.002884][T16373] hwsim_new_radio_nl+0x905/0xf60 [ 3055.007925][T16373] ? swapgs_restore_regs_and_return_to_usermode+0x40/0x40 [ 3055.015024][T16373] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3055.020904][T16373] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3055.027212][T16373] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3055.033631][T16373] genl_rcv_msg+0x627/0xdf0 [ 3055.038157][T16373] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3055.044517][T16373] ? retint_kernel+0x2b/0x2b [ 3055.049235][T16373] netlink_rcv_skb+0x15a/0x410 [ 3055.053990][T16373] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3055.060311][T16373] ? netlink_ack+0xa80/0xa80 [ 3055.064903][T16373] genl_rcv+0x24/0x40 [ 3055.068890][T16373] netlink_unicast+0x537/0x740 [ 3055.073648][T16373] ? netlink_attachskb+0x810/0x810 [ 3055.078744][T16373] ? _copy_from_iter_full+0x25c/0x870 [ 3055.084101][T16373] ? __phys_addr_symbol+0x2c/0x70 [ 3055.089131][T16373] ? __check_object_size+0x171/0x437 [ 3055.094420][T16373] netlink_sendmsg+0x882/0xe10 [ 3055.099172][T16373] ? aa_af_perm+0x260/0x260 [ 3055.103747][T16373] ? netlink_unicast+0x740/0x740 [ 3055.108675][T16373] ? netlink_unicast+0x740/0x740 [ 3055.113596][T16373] sock_sendmsg+0xcf/0x120 [ 3055.117996][T16373] ____sys_sendmsg+0x6b9/0x7d0 [ 3055.122744][T16373] ? kernel_sendmsg+0x50/0x50 [ 3055.127419][T16373] ? mark_lock+0xbc/0x1220 [ 3055.131838][T16373] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3055.137303][T16373] ___sys_sendmsg+0x100/0x170 [ 3055.141976][T16373] ? sendmsg_copy_msghdr+0x70/0x70 [ 3055.147085][T16373] ? __fget_files+0x329/0x4f0 [ 3055.151753][T16373] ? ksys_dup3+0x3c0/0x3c0 [ 3055.156175][T16373] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3055.161886][T16373] ? retint_kernel+0x2b/0x2b [ 3055.166469][T16373] ? __fget_light+0x208/0x270 [ 3055.171137][T16373] __sys_sendmsg+0xec/0x1b0 [ 3055.175629][T16373] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3055.180637][T16373] ? __x64_sys_futex+0x380/0x4f0 [ 3055.185586][T16373] ? trace_hardirqs_off_caller+0x55/0x230 [ 3055.191294][T16373] ? do_syscall_64+0x21/0x7d0 [ 3055.195958][T16373] do_syscall_64+0xf6/0x7d0 [ 3055.200452][T16373] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3055.206452][T16373] RIP: 0033:0x45c849 [ 3055.210344][T16373] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3055.229940][T16373] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3055.238344][T16373] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3055.246303][T16373] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3055.254293][T16373] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3055.262275][T16373] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3055.270235][T16373] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:43:22 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3055.298730][T16377] netlink: 12042 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3055.336820][T16377] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3055.336820][T16377] !' [ 3055.346887][T16377] CPU: 1 PID: 16377 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3055.355669][T16377] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3055.365718][T16377] Call Trace: [ 3055.369015][T16377] dump_stack+0x188/0x20d [ 3055.373342][T16377] sysfs_warn_dup.cold+0x1c/0x2d [ 3055.378281][T16377] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3055.384335][T16377] sysfs_create_link+0x61/0xc0 [ 3055.389090][T16377] device_add+0x71c/0x1bc0 [ 3055.393553][T16377] ? ieee80211_set_bitrate_flags+0x350/0x5c0 [ 3055.399639][T16377] ? uevent_show+0x360/0x360 [ 3055.404240][T16377] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3055.410218][T16377] wiphy_register+0x1c46/0x2720 [ 3055.415779][T16377] ? wiphy_unregister+0xf90/0xf90 [ 3055.420790][T16377] ? __kmalloc+0x629/0x7a0 [ 3055.425187][T16377] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3055.430714][T16377] ? ieee80211_register_hw+0x1d80/0x36a0 [ 3055.436328][T16377] ieee80211_register_hw+0x13d4/0x36a0 [ 3055.441857][T16377] ? __debug_object_init+0x4a1/0xe20 [ 3055.447128][T16377] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3055.452613][T16377] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3055.458142][T16377] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3055.464103][T16377] ? memset+0x20/0x40 [ 3055.468070][T16377] ? __hrtimer_init+0x134/0x260 [ 3055.472920][T16377] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3055.478637][T16377] ? vprintk_func+0x81/0x17e [ 3055.483247][T16377] ? hwsim_register_received_nl+0x400/0x400 [ 3055.489127][T16377] hwsim_new_radio_nl+0x905/0xf60 [ 3055.494141][T16377] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3055.499421][T16377] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3055.505301][T16377] genl_rcv_msg+0x627/0xdf0 [ 3055.509788][T16377] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3055.516097][T16377] ? retint_kernel+0x2b/0x2b [ 3055.521111][T16377] netlink_rcv_skb+0x15a/0x410 [ 3055.525854][T16377] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3055.532159][T16377] ? netlink_ack+0xa80/0xa80 [ 3055.536735][T16377] genl_rcv+0x24/0x40 [ 3055.540696][T16377] netlink_unicast+0x537/0x740 [ 3055.545445][T16377] ? netlink_attachskb+0x810/0x810 [ 3055.550534][T16377] ? _copy_from_iter_full+0x25c/0x870 [ 3055.555894][T16377] ? __phys_addr_symbol+0x2c/0x70 [ 3055.560915][T16377] ? __check_object_size+0x171/0x437 [ 3055.566202][T16377] netlink_sendmsg+0x882/0xe10 [ 3055.570962][T16377] ? aa_af_perm+0x260/0x260 [ 3055.575473][T16377] ? netlink_unicast+0x740/0x740 [ 3055.580412][T16377] ? netlink_unicast+0x740/0x740 [ 3055.585339][T16377] sock_sendmsg+0xcf/0x120 [ 3055.589737][T16377] ____sys_sendmsg+0x6b9/0x7d0 [ 3055.594484][T16377] ? kernel_sendmsg+0x50/0x50 [ 3055.599142][T16377] ? mark_lock+0xbc/0x1220 [ 3055.603591][T16377] ___sys_sendmsg+0x100/0x170 [ 3055.608286][T16377] ? sendmsg_copy_msghdr+0x70/0x70 [ 3055.613388][T16377] ? __fget_files+0x329/0x4f0 [ 3055.618049][T16377] ? ksys_dup3+0x3c0/0x3c0 [ 3055.622448][T16377] ? lock_acquire+0x209/0x420 [ 3055.627108][T16377] ? __fget_light+0x208/0x270 [ 3055.631769][T16377] __sys_sendmsg+0xec/0x1b0 [ 3055.636266][T16377] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3055.641284][T16377] ? __x64_sys_futex+0x380/0x4f0 [ 3055.646333][T16377] ? trace_hardirqs_off_caller+0x55/0x230 [ 3055.652070][T16377] ? do_syscall_64+0x21/0x7d0 [ 3055.656735][T16377] do_syscall_64+0xf6/0x7d0 [ 3055.661243][T16377] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3055.667124][T16377] RIP: 0033:0x45c849 [ 3055.671017][T16377] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3055.690706][T16377] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3055.699098][T16377] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3055.707052][T16377] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3055.715021][T16377] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3055.722985][T16377] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3055.730935][T16377] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:43:22 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60070011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3055.754787][T16380] netlink: 12042 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3055.807432][T16382] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3055.850566][T16382] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3055.850566][T16382] !' [ 3055.860996][T16382] CPU: 0 PID: 16382 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3055.869678][T16382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3055.879742][T16382] Call Trace: [ 3055.883039][T16382] dump_stack+0x188/0x20d [ 3055.887385][T16382] sysfs_warn_dup.cold+0x1c/0x2d [ 3055.892338][T16382] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3055.898418][T16382] sysfs_create_link+0x61/0xc0 [ 3055.903186][T16382] device_add+0x71c/0x1bc0 [ 3055.907620][T16382] ? ieee80211_set_bitrate_flags+0x350/0x5c0 [ 3055.913750][T16382] ? uevent_show+0x360/0x360 [ 3055.918353][T16382] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3055.924353][T16382] wiphy_register+0x1c46/0x2720 [ 3055.929210][T16382] ? wiphy_unregister+0xf90/0xf90 [ 3055.934222][T16382] ? retint_kernel+0x2b/0x2b [ 3055.938854][T16382] ? ieee80211_register_hw+0xc4a/0x36a0 [ 3055.944394][T16382] ieee80211_register_hw+0x13d4/0x36a0 [ 3055.949838][T16382] ? __debug_object_init+0x4a1/0xe20 [ 3055.955117][T16382] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3055.960693][T16382] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3055.966260][T16382] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3055.972239][T16382] ? memset+0x20/0x40 [ 3055.976206][T16382] ? __hrtimer_init+0x134/0x260 [ 3055.981059][T16382] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3055.986813][T16382] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3055.992089][T16382] ? hwsim_register_received_nl+0x400/0x400 [ 3055.997969][T16382] ? hwsim_new_radio_nl+0x7b/0xf60 [ 3056.003077][T16382] hwsim_new_radio_nl+0x905/0xf60 [ 3056.008100][T16382] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3056.013974][T16382] ? cap_capable+0x1eb/0x250 [ 3056.019247][T16382] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3056.025564][T16382] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3056.031964][T16382] genl_rcv_msg+0x627/0xdf0 [ 3056.036460][T16382] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3056.042851][T16382] ? ___preempt_schedule+0x16/0x18 [ 3056.047966][T16382] netlink_rcv_skb+0x15a/0x410 [ 3056.052718][T16382] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3056.059028][T16382] ? netlink_ack+0xa80/0xa80 [ 3056.063630][T16382] genl_rcv+0x24/0x40 [ 3056.067615][T16382] netlink_unicast+0x537/0x740 [ 3056.072498][T16382] ? netlink_attachskb+0x810/0x810 [ 3056.077596][T16382] ? _copy_from_iter_full+0x25c/0x870 [ 3056.082970][T16382] ? __phys_addr_symbol+0x2c/0x70 [ 3056.088004][T16382] ? __check_object_size+0x171/0x437 [ 3056.093277][T16382] netlink_sendmsg+0x882/0xe10 [ 3056.098029][T16382] ? aa_af_perm+0x260/0x260 [ 3056.102529][T16382] ? netlink_unicast+0x740/0x740 [ 3056.107467][T16382] ? netlink_unicast+0x740/0x740 [ 3056.112390][T16382] sock_sendmsg+0xcf/0x120 [ 3056.116791][T16382] ____sys_sendmsg+0x6b9/0x7d0 [ 3056.121558][T16382] ? kernel_sendmsg+0x50/0x50 [ 3056.126233][T16382] ? __fget_files+0x307/0x4f0 [ 3056.130898][T16382] ___sys_sendmsg+0x100/0x170 [ 3056.135567][T16382] ? sendmsg_copy_msghdr+0x70/0x70 [ 3056.140711][T16382] ? __fget_files+0x329/0x4f0 [ 3056.145383][T16382] ? ksys_dup3+0x3c0/0x3c0 [ 3056.149783][T16382] ? lock_acquire+0x197/0x420 [ 3056.154465][T16382] ? __might_fault+0xef/0x1d0 [ 3056.159124][T16382] ? __fget_light+0x208/0x270 [ 3056.163803][T16382] __sys_sendmsg+0xec/0x1b0 [ 3056.168300][T16382] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3056.173306][T16382] ? __x64_sys_futex+0x380/0x4f0 [ 3056.178234][T16382] ? trace_hardirqs_off_caller+0x55/0x230 [ 3056.183954][T16382] ? do_syscall_64+0x21/0x7d0 [ 3056.188628][T16382] do_syscall_64+0xf6/0x7d0 [ 3056.193118][T16382] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3056.198992][T16382] RIP: 0033:0x45c849 [ 3056.202882][T16382] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3056.222503][T16382] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3056.230934][T16382] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3056.238893][T16382] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3056.246851][T16382] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3056.254813][T16382] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3056.262788][T16382] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3056.286553][T16385] netlink: 12042 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3056.335373][T16385] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3056.335373][T16385] !' [ 3056.347609][T16385] CPU: 1 PID: 16385 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3056.356291][T16385] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3056.366330][T16385] Call Trace: [ 3056.369608][T16385] dump_stack+0x188/0x20d [ 3056.373927][T16385] sysfs_warn_dup.cold+0x1c/0x2d [ 3056.378856][T16385] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3056.384927][T16385] sysfs_create_link+0x61/0xc0 [ 3056.389686][T16385] device_add+0x71c/0x1bc0 [ 3056.394100][T16385] ? uevent_show+0x360/0x360 [ 3056.398685][T16385] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3056.404660][T16385] wiphy_register+0x1c46/0x2720 [ 3056.409511][T16385] ? wiphy_unregister+0xf90/0xf90 [ 3056.414519][T16385] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3056.420235][T16385] ? retint_kernel+0x2b/0x2b [ 3056.424845][T16385] ieee80211_register_hw+0x13d4/0x36a0 [ 3056.430295][T16385] ? __debug_object_init+0x4a1/0xe20 [ 3056.435573][T16385] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3056.441020][T16385] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3056.446548][T16385] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3056.452619][T16385] ? memset+0x20/0x40 [ 3056.456582][T16385] ? __hrtimer_init+0x134/0x260 [ 3056.461416][T16385] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3056.467295][T16385] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3056.472682][T16385] ? hwsim_register_received_nl+0x400/0x400 [ 3056.478590][T16385] ? hwsim_new_radio_nl+0x1d3/0xf60 [ 3056.483775][T16385] hwsim_new_radio_nl+0x905/0xf60 [ 3056.488790][T16385] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3056.494672][T16385] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3056.500980][T16385] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3056.507304][T16385] genl_rcv_msg+0x627/0xdf0 [ 3056.511793][T16385] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3056.518101][T16385] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3056.523380][T16385] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3056.528826][T16385] ? netlink_rcv_skb+0xb1/0x410 [ 3056.533664][T16385] netlink_rcv_skb+0x15a/0x410 [ 3056.538410][T16385] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3056.544719][T16385] ? netlink_ack+0xa80/0xa80 [ 3056.549312][T16385] genl_rcv+0x24/0x40 [ 3056.553279][T16385] netlink_unicast+0x537/0x740 [ 3056.558052][T16385] ? netlink_attachskb+0x810/0x810 [ 3056.563167][T16385] netlink_sendmsg+0x882/0xe10 [ 3056.567920][T16385] ? aa_af_perm+0x260/0x260 [ 3056.572442][T16385] ? netlink_unicast+0x740/0x740 [ 3056.577388][T16385] ? netlink_unicast+0x740/0x740 [ 3056.582315][T16385] sock_sendmsg+0xcf/0x120 [ 3056.586735][T16385] ____sys_sendmsg+0x6b9/0x7d0 [ 3056.591492][T16385] ? kernel_sendmsg+0x50/0x50 [ 3056.596172][T16385] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3056.601630][T16385] ___sys_sendmsg+0x100/0x170 [ 3056.606301][T16385] ? sendmsg_copy_msghdr+0x70/0x70 [ 3056.611403][T16385] ? __fget_files+0xc3/0x4f0 [ 3056.615979][T16385] ? __fget_files+0x329/0x4f0 [ 3056.620644][T16385] ? ksys_dup3+0x3c0/0x3c0 [ 3056.625044][T16385] ? lock_acquire+0x197/0x420 [ 3056.629707][T16385] ? __might_fault+0xef/0x1d0 [ 3056.634375][T16385] ? __fget_light+0x208/0x270 [ 3056.639040][T16385] __sys_sendmsg+0xec/0x1b0 [ 3056.643526][T16385] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3056.648548][T16385] ? __x64_sys_futex+0x380/0x4f0 [ 3056.653492][T16385] ? trace_hardirqs_off_caller+0x55/0x230 [ 3056.659211][T16385] ? do_syscall_64+0x21/0x7d0 [ 3056.663874][T16385] do_syscall_64+0xf6/0x7d0 [ 3056.668368][T16385] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3056.674258][T16385] RIP: 0033:0x45c849 [ 3056.678144][T16385] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3056.697727][T16385] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3056.706132][T16385] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3056.714105][T16385] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3056.722169][T16385] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3056.730222][T16385] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3056.738184][T16385] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3056.755963][T16385] netlink: 12042 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3056.767909][T16385] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3056.767909][T16385] !' [ 3056.777811][T16385] CPU: 1 PID: 16385 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3056.786487][T16385] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3056.796532][T16385] Call Trace: [ 3056.799811][T16385] dump_stack+0x188/0x20d [ 3056.804146][T16385] sysfs_warn_dup.cold+0x1c/0x2d [ 3056.809084][T16385] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3056.815153][T16385] sysfs_create_link+0x61/0xc0 [ 3056.819905][T16385] device_add+0x71c/0x1bc0 [ 3056.824304][T16385] ? uevent_show+0x360/0x360 [ 3056.828875][T16385] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3056.834833][T16385] wiphy_register+0x1c46/0x2720 [ 3056.839670][T16385] ? wiphy_unregister+0xf90/0xf90 [ 3056.844731][T16385] ? __kmalloc+0x629/0x7a0 [ 3056.849153][T16385] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3056.854692][T16385] ieee80211_register_hw+0x13d4/0x36a0 [ 3056.860141][T16385] ? __debug_object_init+0x4a1/0xe20 [ 3056.865425][T16385] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3056.870877][T16385] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3056.876408][T16385] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3056.882373][T16385] ? memset+0x20/0x40 [ 3056.886341][T16385] ? __hrtimer_init+0x134/0x260 [ 3056.891214][T16385] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3056.897312][T16385] ? vprintk_func+0x81/0x17e [ 3056.902017][T16385] ? hwsim_register_received_nl+0x400/0x400 [ 3056.907904][T16385] hwsim_new_radio_nl+0x905/0xf60 [ 3056.913623][T16385] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3056.919501][T16385] ? cap_capable+0x1eb/0x250 [ 3056.924078][T16385] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3056.931428][T16385] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3056.937746][T16385] genl_rcv_msg+0x627/0xdf0 [ 3056.942297][T16385] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3056.948615][T16385] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3056.953884][T16385] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3056.959330][T16385] netlink_rcv_skb+0x15a/0x410 [ 3056.964076][T16385] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3056.970384][T16385] ? netlink_ack+0xa80/0xa80 [ 3056.974958][T16385] genl_rcv+0x24/0x40 [ 3056.978921][T16385] netlink_unicast+0x537/0x740 [ 3056.983670][T16385] ? netlink_attachskb+0x810/0x810 [ 3056.988760][T16385] ? _copy_from_iter_full+0x25c/0x870 [ 3056.994122][T16385] ? __phys_addr_symbol+0x2c/0x70 [ 3056.999139][T16385] ? __check_object_size+0x171/0x437 [ 3057.004413][T16385] netlink_sendmsg+0x882/0xe10 [ 3057.009184][T16385] ? aa_af_perm+0x260/0x260 [ 3057.013677][T16385] ? netlink_unicast+0x740/0x740 [ 3057.018605][T16385] ? netlink_unicast+0x740/0x740 [ 3057.023528][T16385] sock_sendmsg+0xcf/0x120 [ 3057.027939][T16385] ____sys_sendmsg+0x6b9/0x7d0 [ 3057.032695][T16385] ? kernel_sendmsg+0x50/0x50 [ 3057.037368][T16385] ? mark_lock+0xbc/0x1220 [ 3057.041819][T16385] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3057.047307][T16385] ___sys_sendmsg+0x100/0x170 [ 3057.052027][T16385] ? sendmsg_copy_msghdr+0x70/0x70 [ 3057.057139][T16385] ? __fget_files+0x329/0x4f0 [ 3057.061807][T16385] ? ksys_dup3+0x3c0/0x3c0 [ 3057.066208][T16385] ? lock_acquire+0x197/0x420 [ 3057.070914][T16385] ? __might_fault+0xef/0x1d0 [ 3057.075583][T16385] ? __fget_light+0x208/0x270 [ 3057.080257][T16385] __sys_sendmsg+0xec/0x1b0 [ 3057.084748][T16385] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3057.089762][T16385] ? __x64_sys_futex+0x380/0x4f0 [ 3057.094694][T16385] ? trace_hardirqs_off_caller+0x55/0x230 [ 3057.100403][T16385] ? do_syscall_64+0x21/0x7d0 [ 3057.105084][T16385] do_syscall_64+0xf6/0x7d0 [ 3057.109587][T16385] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3057.115470][T16385] RIP: 0033:0x45c849 [ 3057.119349][T16385] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3057.138976][T16385] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3057.147369][T16385] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3057.155430][T16385] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3057.163393][T16385] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3057.171352][T16385] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3057.179320][T16385] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:43:38 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024070705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:38 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60050011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:38 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:38 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60080011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:38 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:38 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3071.315297][T16402] netlink: 12042 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3071.327479][T16402] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3071.327479][T16402] !' [ 3071.337480][T16402] CPU: 1 PID: 16402 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3071.346163][T16402] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3071.356246][T16402] Call Trace: [ 3071.359537][T16402] dump_stack+0x188/0x20d [ 3071.363871][T16402] sysfs_warn_dup.cold+0x1c/0x2d [ 3071.368820][T16402] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3071.374886][T16402] sysfs_create_link+0x61/0xc0 [ 3071.379638][T16402] device_add+0x71c/0x1bc0 [ 3071.384044][T16402] ? uevent_show+0x360/0x360 [ 3071.388639][T16402] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3071.394607][T16402] wiphy_register+0x1c46/0x2720 [ 3071.399447][T16402] ? wiphy_unregister+0xf90/0xf90 [ 3071.404456][T16402] ? __kmalloc+0x629/0x7a0 [ 3071.408856][T16402] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3071.414411][T16402] ieee80211_register_hw+0x13d4/0x36a0 [ 3071.419856][T16402] ? __debug_object_init+0x4a1/0xe20 [ 3071.425133][T16402] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3071.430584][T16402] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3071.437088][T16402] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3071.443062][T16402] ? memset+0x20/0x40 [ 3071.447029][T16402] ? __hrtimer_init+0x134/0x260 [ 3071.451876][T16402] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3071.457578][T16402] ? vprintk_func+0x81/0x17e [ 3071.462162][T16402] ? hwsim_register_received_nl+0x400/0x400 [ 3071.468040][T16402] hwsim_new_radio_nl+0x905/0xf60 [ 3071.473051][T16402] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3071.478937][T16402] ? cap_capable+0x1eb/0x250 [ 3071.483524][T16402] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3071.489830][T16402] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3071.496796][T16402] genl_rcv_msg+0x627/0xdf0 [ 3071.501302][T16402] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3071.507642][T16402] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 3071.513473][T16402] netlink_rcv_skb+0x15a/0x410 [ 3071.518219][T16402] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3071.524527][T16402] ? netlink_ack+0xa80/0xa80 [ 3071.529117][T16402] genl_rcv+0x24/0x40 [ 3071.533096][T16402] netlink_unicast+0x537/0x740 [ 3071.537853][T16402] ? netlink_attachskb+0x810/0x810 [ 3071.542944][T16402] ? _copy_from_iter_full+0x25c/0x870 [ 3071.548299][T16402] ? __phys_addr_symbol+0x2c/0x70 [ 3071.553302][T16402] ? __check_object_size+0x171/0x437 [ 3071.558573][T16402] netlink_sendmsg+0x882/0xe10 [ 3071.563349][T16402] ? aa_af_perm+0x260/0x260 [ 3071.567846][T16402] ? netlink_unicast+0x740/0x740 [ 3071.572794][T16402] ? netlink_unicast+0x740/0x740 [ 3071.577765][T16402] sock_sendmsg+0xcf/0x120 [ 3071.582177][T16402] ____sys_sendmsg+0x6b9/0x7d0 [ 3071.587100][T16402] ? kernel_sendmsg+0x50/0x50 [ 3071.591773][T16402] ? mark_lock+0xbc/0x1220 [ 3071.596190][T16402] ___sys_sendmsg+0x100/0x170 [ 3071.600866][T16402] ? sendmsg_copy_msghdr+0x70/0x70 [ 3071.605972][T16402] ? __fget_files+0x329/0x4f0 [ 3071.610638][T16402] ? ksys_dup3+0x3c0/0x3c0 [ 3071.615043][T16402] ? lock_acquire+0x197/0x420 [ 3071.619727][T16402] ? __might_fault+0xef/0x1d0 [ 3071.624393][T16402] ? __fget_light+0x208/0x270 [ 3071.629076][T16402] __sys_sendmsg+0xec/0x1b0 [ 3071.633581][T16402] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3071.639030][T16402] ? __x64_sys_futex+0x380/0x4f0 [ 3071.643973][T16402] ? trace_hardirqs_off_caller+0x55/0x230 [ 3071.649693][T16402] ? do_syscall_64+0x21/0x7d0 [ 3071.654380][T16402] do_syscall_64+0xf6/0x7d0 [ 3071.658894][T16402] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3071.664789][T16402] RIP: 0033:0x45c849 [ 3071.668684][T16402] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3071.688297][T16402] RSP: 002b:00007fce66789c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3071.696704][T16402] RAX: ffffffffffffffda RBX: 00007fce6678a6d4 RCX: 000000000045c849 [ 3071.704757][T16402] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3071.712722][T16402] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3071.720685][T16402] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3071.728664][T16402] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac [ 3071.747163][T16403] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3071.758234][T16403] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3071.758234][T16403] !' [ 3071.768939][T16403] CPU: 0 PID: 16403 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3071.777718][T16403] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3071.787760][T16403] Call Trace: [ 3071.791046][T16403] dump_stack+0x188/0x20d [ 3071.795362][T16403] sysfs_warn_dup.cold+0x1c/0x2d [ 3071.800287][T16403] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3071.806461][T16403] sysfs_create_link+0x61/0xc0 [ 3071.811224][T16403] device_add+0x71c/0x1bc0 [ 3071.815639][T16403] ? uevent_show+0x360/0x360 [ 3071.820266][T16403] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3071.826236][T16403] wiphy_register+0x1c46/0x2720 [ 3071.831078][T16403] ? wiphy_unregister+0xf90/0xf90 [ 3071.836104][T16403] ? __kmalloc+0x629/0x7a0 [ 3071.840527][T16403] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3071.846082][T16403] ieee80211_register_hw+0x13d4/0x36a0 [ 3071.851650][T16403] ? __debug_object_init+0x4a1/0xe20 [ 3071.856928][T16403] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3071.862373][T16403] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3071.867903][T16403] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3071.873872][T16403] ? memset+0x20/0x40 [ 3071.877838][T16403] ? __hrtimer_init+0x134/0x260 [ 3071.882672][T16403] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3071.888371][T16403] ? vprintk_func+0x81/0x17e [ 3071.892965][T16403] ? hwsim_register_received_nl+0x400/0x400 [ 3071.898841][T16403] hwsim_new_radio_nl+0x905/0xf60 [ 3071.903848][T16403] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3071.909738][T16403] ? cap_capable+0x1eb/0x250 [ 3071.914336][T16403] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3071.920673][T16403] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3071.926983][T16403] genl_rcv_msg+0x627/0xdf0 [ 3071.931469][T16403] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3071.937783][T16403] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 3071.943588][T16403] netlink_rcv_skb+0x15a/0x410 [ 3071.948342][T16403] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3071.954658][T16403] ? netlink_ack+0xa80/0xa80 [ 3071.959235][T16403] genl_rcv+0x24/0x40 [ 3071.963201][T16403] netlink_unicast+0x537/0x740 [ 3071.967947][T16403] ? netlink_attachskb+0x810/0x810 [ 3071.973035][T16403] ? _copy_from_iter_full+0x25c/0x870 [ 3071.978393][T16403] ? __phys_addr_symbol+0x2c/0x70 [ 3071.983397][T16403] ? __check_object_size+0x171/0x437 [ 3071.988675][T16403] netlink_sendmsg+0x882/0xe10 [ 3071.993420][T16403] ? aa_af_perm+0x260/0x260 [ 3071.997903][T16403] ? netlink_unicast+0x740/0x740 [ 3072.002822][T16403] ? netlink_unicast+0x740/0x740 [ 3072.007738][T16403] sock_sendmsg+0xcf/0x120 [ 3072.012153][T16403] ____sys_sendmsg+0x6b9/0x7d0 [ 3072.016899][T16403] ? kernel_sendmsg+0x50/0x50 [ 3072.021561][T16403] ? mark_lock+0xbc/0x1220 [ 3072.025969][T16403] ___sys_sendmsg+0x100/0x170 [ 3072.030755][T16403] ? sendmsg_copy_msghdr+0x70/0x70 [ 3072.035863][T16403] ? __fget_files+0x329/0x4f0 [ 3072.040530][T16403] ? ksys_dup3+0x3c0/0x3c0 [ 3072.044932][T16403] ? lock_acquire+0x197/0x420 [ 3072.049593][T16403] ? __might_fault+0xef/0x1d0 [ 3072.054256][T16403] ? __fget_light+0x208/0x270 [ 3072.058915][T16403] __sys_sendmsg+0xec/0x1b0 [ 3072.063407][T16403] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3072.068411][T16403] ? __x64_sys_futex+0x380/0x4f0 [ 3072.073340][T16403] ? trace_hardirqs_off_caller+0x55/0x230 [ 3072.079041][T16403] ? do_syscall_64+0x21/0x7d0 [ 3072.083732][T16403] do_syscall_64+0xf6/0x7d0 [ 3072.088221][T16403] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3072.094106][T16403] RIP: 0033:0x45c849 [ 3072.097991][T16403] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3072.117586][T16403] RSP: 002b:00007f17ede4ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3072.125988][T16403] RAX: ffffffffffffffda RBX: 00007f17ede4b6d4 RCX: 000000000045c849 [ 3072.133941][T16403] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3072.141890][T16403] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3072.149867][T16403] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3072.157959][T16403] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac [ 3072.182071][T16401] netlink: 12042 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3072.217135][T16400] netlink: 12042 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3072.234026][T16400] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3072.234026][T16400] !' [ 3072.252006][T16400] CPU: 1 PID: 16400 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3072.260718][T16400] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3072.270782][T16400] Call Trace: [ 3072.274085][T16400] dump_stack+0x188/0x20d [ 3072.278443][T16400] sysfs_warn_dup.cold+0x1c/0x2d 23:43:39 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60050011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:39 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3072.283399][T16400] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3072.289480][T16400] sysfs_create_link+0x61/0xc0 [ 3072.294256][T16400] device_add+0x71c/0x1bc0 [ 3072.298700][T16400] ? uevent_show+0x360/0x360 [ 3072.304784][T16400] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3072.310816][T16400] wiphy_register+0x1c46/0x2720 [ 3072.315688][T16400] ? wiphy_unregister+0xf90/0xf90 [ 3072.320730][T16400] ? __kmalloc+0x629/0x7a0 [ 3072.325158][T16400] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3072.330729][T16400] ieee80211_register_hw+0x13d4/0x36a0 [ 3072.336198][T16400] ? __debug_object_init+0x4a1/0xe20 [ 3072.341501][T16400] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3072.346961][T16400] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3072.352494][T16400] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3072.358466][T16400] ? memset+0x20/0x40 [ 3072.362433][T16400] ? __hrtimer_init+0x134/0x260 [ 3072.367269][T16400] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3072.372976][T16400] ? vprintk_func+0x81/0x17e [ 3072.377557][T16400] ? hwsim_register_received_nl+0x400/0x400 [ 3072.383450][T16400] hwsim_new_radio_nl+0x905/0xf60 [ 3072.388465][T16400] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3072.394391][T16400] ? cap_capable+0x1eb/0x250 [ 3072.398996][T16400] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3072.405311][T16400] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3072.411622][T16400] genl_rcv_msg+0x627/0xdf0 [ 3072.416184][T16400] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3072.422584][T16400] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3072.427881][T16400] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3072.433355][T16400] netlink_rcv_skb+0x15a/0x410 [ 3072.438169][T16400] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3072.444547][T16400] ? netlink_ack+0xa80/0xa80 [ 3072.449139][T16400] genl_rcv+0x24/0x40 [ 3072.453109][T16400] netlink_unicast+0x537/0x740 [ 3072.457865][T16400] ? netlink_attachskb+0x810/0x810 [ 3072.462967][T16400] ? _copy_from_iter_full+0x25c/0x870 [ 3072.468333][T16400] ? __phys_addr_symbol+0x2c/0x70 [ 3072.473338][T16400] ? __check_object_size+0x171/0x437 [ 3072.478615][T16400] netlink_sendmsg+0x882/0xe10 [ 3072.483369][T16400] ? aa_af_perm+0x260/0x260 [ 3072.487858][T16400] ? netlink_unicast+0x740/0x740 [ 3072.492844][T16400] ? netlink_unicast+0x740/0x740 [ 3072.497767][T16400] sock_sendmsg+0xcf/0x120 [ 3072.502175][T16400] ____sys_sendmsg+0x6b9/0x7d0 [ 3072.506925][T16400] ? kernel_sendmsg+0x50/0x50 [ 3072.511584][T16400] ? mark_lock+0xbc/0x1220 [ 3072.515984][T16400] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3072.521552][T16400] ___sys_sendmsg+0x100/0x170 [ 3072.526215][T16400] ? sendmsg_copy_msghdr+0x70/0x70 [ 3072.531322][T16400] ? __fget_files+0x329/0x4f0 [ 3072.535985][T16400] ? ksys_dup3+0x3c0/0x3c0 [ 3072.540382][T16400] ? lock_acquire+0x209/0x420 [ 3072.545042][T16400] ? __fget_light+0x208/0x270 [ 3072.549705][T16400] __sys_sendmsg+0xec/0x1b0 [ 3072.554202][T16400] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3072.559220][T16400] ? __x64_sys_futex+0x380/0x4f0 [ 3072.564165][T16400] ? trace_hardirqs_off_caller+0x55/0x230 [ 3072.569883][T16400] ? do_syscall_64+0x21/0x7d0 [ 3072.574541][T16400] do_syscall_64+0xf6/0x7d0 [ 3072.579031][T16400] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3072.584902][T16400] RIP: 0033:0x45c849 [ 3072.588778][T16400] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3072.608372][T16400] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3072.617906][T16400] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3072.625899][T16400] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 23:43:39 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60090011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3072.633862][T16400] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3072.641836][T16400] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3072.649794][T16400] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3072.670579][T16406] netlink: 12042 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3072.811144][T16407] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3072.843999][T16407] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3072.843999][T16407] !' [ 3072.855144][T16407] CPU: 0 PID: 16407 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3072.863842][T16407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3072.873915][T16407] Call Trace: [ 3072.877348][T16407] dump_stack+0x188/0x20d [ 3072.881684][T16407] sysfs_warn_dup.cold+0x1c/0x2d [ 3072.886607][T16407] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3072.892763][T16407] sysfs_create_link+0x61/0xc0 [ 3072.897570][T16407] device_add+0x71c/0x1bc0 [ 3072.901976][T16407] ? uevent_show+0x360/0x360 [ 3072.906615][T16407] ? wiphy_register+0x1c3e/0x2720 [ 3072.911643][T16407] wiphy_register+0x1c46/0x2720 [ 3072.916679][T16407] ? wiphy_unregister+0xf90/0xf90 [ 3072.921702][T16407] ? __kmalloc+0x629/0x7a0 [ 3072.926104][T16407] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3072.931654][T16407] ? ieee80211_register_hw+0x6d9/0x36a0 [ 3072.937207][T16407] ieee80211_register_hw+0x13d4/0x36a0 [ 3072.942654][T16407] ? __debug_object_init+0x4a1/0xe20 [ 3072.947927][T16407] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3072.953381][T16407] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3072.958935][T16407] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3072.964908][T16407] ? memset+0x20/0x40 [ 3072.968869][T16407] ? __hrtimer_init+0x134/0x260 [ 3072.973707][T16407] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3072.979426][T16407] ? hwsim_register_received_nl+0x400/0x400 [ 3072.985314][T16407] hwsim_new_radio_nl+0x905/0xf60 [ 3072.990329][T16407] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3072.995609][T16407] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3073.001499][T16407] genl_rcv_msg+0x627/0xdf0 [ 3073.006043][T16407] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3073.012377][T16407] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3073.017837][T16407] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3073.023542][T16407] ? retint_kernel+0x2b/0x2b [ 3073.028119][T16407] netlink_rcv_skb+0x15a/0x410 [ 3073.032879][T16407] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3073.039186][T16407] ? netlink_ack+0xa80/0xa80 [ 3073.043833][T16407] genl_rcv+0x24/0x40 [ 3073.047816][T16407] netlink_unicast+0x537/0x740 [ 3073.052589][T16407] ? netlink_attachskb+0x810/0x810 [ 3073.057692][T16407] ? _copy_from_iter_full+0x25c/0x870 [ 3073.063047][T16407] ? __phys_addr_symbol+0x2c/0x70 [ 3073.068052][T16407] ? __check_object_size+0x171/0x437 [ 3073.073322][T16407] netlink_sendmsg+0x882/0xe10 [ 3073.078079][T16407] ? aa_af_perm+0x260/0x260 [ 3073.082569][T16407] ? netlink_unicast+0x740/0x740 [ 3073.087489][T16407] ? netlink_unicast+0x740/0x740 [ 3073.092435][T16407] sock_sendmsg+0xcf/0x120 [ 3073.096855][T16407] ____sys_sendmsg+0x6b9/0x7d0 [ 3073.101648][T16407] ? kernel_sendmsg+0x50/0x50 [ 3073.106326][T16407] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3073.111790][T16407] ___sys_sendmsg+0x100/0x170 [ 3073.116464][T16407] ? sendmsg_copy_msghdr+0x70/0x70 [ 3073.121665][T16407] ? __fget_files+0xc3/0x4f0 [ 3073.126236][T16407] ? __fget_files+0x329/0x4f0 [ 3073.130909][T16407] ? ksys_dup3+0x3c0/0x3c0 [ 3073.135314][T16407] ? lock_acquire+0x197/0x420 [ 3073.139982][T16407] ? __might_fault+0xef/0x1d0 [ 3073.144667][T16407] ? __fget_light+0x208/0x270 [ 3073.149340][T16407] __sys_sendmsg+0xec/0x1b0 [ 3073.153847][T16407] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3073.158862][T16407] ? __x64_sys_futex+0x380/0x4f0 [ 3073.163798][T16407] ? trace_hardirqs_off_caller+0x55/0x230 [ 3073.169530][T16407] ? do_syscall_64+0x21/0x7d0 [ 3073.174209][T16407] do_syscall_64+0xf6/0x7d0 [ 3073.178704][T16407] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3073.184604][T16407] RIP: 0033:0x45c849 [ 3073.188479][T16407] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 23:43:40 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3073.208102][T16407] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3073.216520][T16407] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3073.224484][T16407] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3073.232557][T16407] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3073.240529][T16407] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3073.248492][T16407] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:43:40 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3073.318430][T16415] netlink: 'syz-executor.0': attribute type 8 has an invalid length. [ 3073.348841][T16415] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3073.371858][T16415] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3073.371858][T16415] !' [ 3073.382389][T16415] CPU: 1 PID: 16415 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3073.391064][T16415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3073.401125][T16415] Call Trace: [ 3073.404432][T16415] dump_stack+0x188/0x20d [ 3073.408763][T16415] sysfs_warn_dup.cold+0x1c/0x2d [ 3073.413692][T16415] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3073.419850][T16415] sysfs_create_link+0x61/0xc0 [ 3073.424656][T16415] device_add+0x71c/0x1bc0 [ 3073.429065][T16415] ? ieee80211_set_bitrate_flags+0x350/0x5c0 [ 3073.435032][T16415] ? uevent_show+0x360/0x360 [ 3073.439625][T16415] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3073.445591][T16415] wiphy_register+0x1c46/0x2720 [ 3073.450443][T16415] ? wiphy_unregister+0xf90/0xf90 [ 3073.455470][T16415] ? retint_kernel+0x2b/0x2b [ 3073.460051][T16415] ? ieee80211_register_hw+0xd70/0x36a0 [ 3073.465656][T16415] ieee80211_register_hw+0x13d4/0x36a0 [ 3073.471100][T16415] ? calibrate_delay.cold+0x3db/0x3f6 [ 3073.476456][T16415] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3073.481905][T16415] ? retint_kernel+0x2b/0x2b [ 3073.486479][T16415] ? __hrtimer_init+0x134/0x260 [ 3073.491314][T16415] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3073.497034][T16415] ? hwsim_register_received_nl+0x400/0x400 [ 3073.502959][T16415] hwsim_new_radio_nl+0x905/0xf60 [ 3073.507977][T16415] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3073.513254][T16415] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3073.519163][T16415] genl_rcv_msg+0x627/0xdf0 [ 3073.523662][T16415] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3073.529987][T16415] ? mark_held_locks+0x9f/0xe0 [ 3073.534740][T16415] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3073.540195][T16415] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3073.545900][T16415] ? retint_kernel+0x2b/0x2b [ 3073.550477][T16415] netlink_rcv_skb+0x15a/0x410 [ 3073.555243][T16415] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3073.561568][T16415] ? netlink_ack+0xa80/0xa80 [ 3073.566155][T16415] genl_rcv+0x24/0x40 [ 3073.570123][T16415] netlink_unicast+0x537/0x740 [ 3073.574875][T16415] ? netlink_attachskb+0x810/0x810 [ 3073.579967][T16415] ? _copy_from_iter_full+0x25c/0x870 [ 3073.585322][T16415] ? __phys_addr_symbol+0x2c/0x70 [ 3073.590330][T16415] ? __check_object_size+0x171/0x437 [ 3073.595603][T16415] netlink_sendmsg+0x882/0xe10 [ 3073.600354][T16415] ? aa_af_perm+0x260/0x260 [ 3073.604841][T16415] ? netlink_unicast+0x740/0x740 [ 3073.609770][T16415] ? netlink_unicast+0x740/0x740 [ 3073.614692][T16415] sock_sendmsg+0xcf/0x120 [ 3073.619092][T16415] ____sys_sendmsg+0x6b9/0x7d0 [ 3073.623845][T16415] ? kernel_sendmsg+0x50/0x50 [ 3073.628509][T16415] ? mark_lock+0xbc/0x1220 [ 3073.632916][T16415] ___sys_sendmsg+0x100/0x170 [ 3073.637579][T16415] ? sendmsg_copy_msghdr+0x70/0x70 [ 3073.642685][T16415] ? __fget_files+0x329/0x4f0 [ 3073.647350][T16415] ? ksys_dup3+0x3c0/0x3c0 [ 3073.651751][T16415] ? __fget_light+0x88/0x270 [ 3073.656327][T16415] ? __fget_light+0x208/0x270 [ 3073.660993][T16415] __sys_sendmsg+0xec/0x1b0 [ 3073.665488][T16415] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3073.670511][T16415] ? __x64_sys_futex+0x380/0x4f0 [ 3073.675443][T16415] ? trace_hardirqs_off_caller+0x55/0x230 [ 3073.681153][T16415] ? do_syscall_64+0x21/0x7d0 [ 3073.685815][T16415] do_syscall_64+0xf6/0x7d0 [ 3073.690306][T16415] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3073.696179][T16415] RIP: 0033:0x45c849 [ 3073.700100][T16415] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3073.719700][T16415] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3073.728093][T16415] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3073.736049][T16415] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3073.744009][T16415] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3073.751985][T16415] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3073.759943][T16415] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3073.790581][T16411] netlink: 18446 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3073.809007][T16411] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3073.809007][T16411] !' [ 3073.826183][T16411] CPU: 0 PID: 16411 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3073.834898][T16411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3073.844954][T16411] Call Trace: [ 3073.848243][T16411] dump_stack+0x188/0x20d [ 3073.852576][T16411] sysfs_warn_dup.cold+0x1c/0x2d [ 3073.857615][T16411] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3073.863680][T16411] sysfs_create_link+0x61/0xc0 [ 3073.868447][T16411] device_add+0x71c/0x1bc0 [ 3073.872851][T16411] ? uevent_show+0x360/0x360 [ 3073.877441][T16411] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3073.883424][T16411] wiphy_register+0x1c46/0x2720 [ 3073.888266][T16411] ? wiphy_unregister+0xf90/0xf90 [ 3073.893275][T16411] ? __kmalloc+0x629/0x7a0 [ 3073.897674][T16411] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3073.903205][T16411] ieee80211_register_hw+0x13d4/0x36a0 [ 3073.908643][T16411] ? __debug_object_init+0x4a1/0xe20 [ 3073.913912][T16411] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3073.919359][T16411] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3073.924886][T16411] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3073.930845][T16411] ? memset+0x20/0x40 [ 3073.934805][T16411] ? __hrtimer_init+0x134/0x260 [ 3073.939636][T16411] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3073.945347][T16411] ? vprintk_func+0x81/0x17e [ 3073.949923][T16411] ? hwsim_register_received_nl+0x400/0x400 [ 3073.955796][T16411] hwsim_new_radio_nl+0x905/0xf60 [ 3073.960800][T16411] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3073.966671][T16411] ? cap_capable+0x1eb/0x250 [ 3073.971245][T16411] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3073.977562][T16411] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3073.983883][T16411] genl_rcv_msg+0x627/0xdf0 [ 3073.988379][T16411] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3073.994721][T16411] ? retint_kernel+0x2b/0x2b [ 3073.999342][T16411] netlink_rcv_skb+0x15a/0x410 [ 3074.004168][T16411] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3074.010525][T16411] ? netlink_ack+0xa80/0xa80 [ 3074.015107][T16411] genl_rcv+0x24/0x40 [ 3074.019197][T16411] netlink_unicast+0x537/0x740 [ 3074.024310][T16411] ? netlink_attachskb+0x810/0x810 [ 3074.029411][T16411] ? _copy_from_iter_full+0x25c/0x870 [ 3074.034774][T16411] ? __phys_addr_symbol+0x2c/0x70 [ 3074.039780][T16411] ? __check_object_size+0x171/0x437 [ 3074.045110][T16411] netlink_sendmsg+0x882/0xe10 [ 3074.049898][T16411] ? aa_af_perm+0x260/0x260 [ 3074.054382][T16411] ? netlink_unicast+0x740/0x740 [ 3074.059316][T16411] ? netlink_unicast+0x740/0x740 [ 3074.064287][T16411] sock_sendmsg+0xcf/0x120 [ 3074.068684][T16411] ____sys_sendmsg+0x6b9/0x7d0 [ 3074.074159][T16411] ? kernel_sendmsg+0x50/0x50 [ 3074.078822][T16411] ___sys_sendmsg+0x100/0x170 [ 3074.083484][T16411] ? sendmsg_copy_msghdr+0x70/0x70 [ 3074.088591][T16411] ? __fget_files+0x329/0x4f0 [ 3074.093273][T16411] ? ksys_dup3+0x3c0/0x3c0 [ 3074.097668][T16411] ? lock_acquire+0x209/0x420 [ 3074.102520][T16411] ? __fget_light+0x208/0x270 [ 3074.107177][T16411] __sys_sendmsg+0xec/0x1b0 [ 3074.111672][T16411] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3074.116673][T16411] ? __x64_sys_futex+0x380/0x4f0 [ 3074.121597][T16411] ? trace_hardirqs_off_caller+0x55/0x230 [ 3074.127305][T16411] ? do_syscall_64+0x21/0x7d0 [ 3074.131961][T16411] do_syscall_64+0xf6/0x7d0 [ 3074.136446][T16411] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3074.142313][T16411] RIP: 0033:0x45c849 [ 3074.146188][T16411] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3074.165768][T16411] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3074.174157][T16411] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3074.182106][T16411] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 23:43:41 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000761d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3074.190053][T16411] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3074.198002][T16411] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3074.205954][T16411] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3074.237260][T16417] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3074.275025][T16417] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3074.275025][T16417] !' [ 3074.286649][T16417] CPU: 0 PID: 16417 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3074.295343][T16417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3074.305402][T16417] Call Trace: [ 3074.308800][T16417] dump_stack+0x188/0x20d [ 3074.313247][T16417] sysfs_warn_dup.cold+0x1c/0x2d [ 3074.318200][T16417] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3074.324284][T16417] sysfs_create_link+0x61/0xc0 [ 3074.329073][T16417] device_add+0x71c/0x1bc0 [ 3074.333573][T16417] ? uevent_show+0x360/0x360 [ 3074.338187][T16417] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3074.344225][T16417] wiphy_register+0x1c46/0x2720 [ 3074.349096][T16417] ? wiphy_unregister+0xf90/0xf90 [ 3074.354181][T16417] ? __kmalloc+0x629/0x7a0 [ 3074.358672][T16417] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3074.364240][T16417] ieee80211_register_hw+0x13d4/0x36a0 [ 3074.369707][T16417] ? __debug_object_init+0x4a1/0xe20 [ 3074.374999][T16417] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3074.380462][T16417] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3074.386072][T16417] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3074.392045][T16417] ? memset+0x20/0x40 [ 3074.396015][T16417] ? __hrtimer_init+0x134/0x260 [ 3074.400867][T16417] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3074.406584][T16417] ? vprintk_func+0x81/0x17e [ 3074.411170][T16417] ? hwsim_register_received_nl+0x400/0x400 [ 3074.417047][T16417] hwsim_new_radio_nl+0x905/0xf60 [ 3074.422074][T16417] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3074.427957][T16417] ? cap_capable+0x1eb/0x250 [ 3074.432612][T16417] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3074.438957][T16417] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3074.445281][T16417] genl_rcv_msg+0x627/0xdf0 [ 3074.449904][T16417] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3074.456281][T16417] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3074.461577][T16417] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3074.467043][T16417] netlink_rcv_skb+0x15a/0x410 [ 3074.471818][T16417] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3074.478203][T16417] ? netlink_ack+0xa80/0xa80 [ 3074.482815][T16417] genl_rcv+0x24/0x40 [ 3074.486812][T16417] netlink_unicast+0x537/0x740 [ 3074.491630][T16417] ? netlink_attachskb+0x810/0x810 [ 3074.496781][T16417] ? _copy_from_iter_full+0x25c/0x870 [ 3074.502167][T16417] ? __phys_addr_symbol+0x2c/0x70 [ 3074.507186][T16417] ? __check_object_size+0x171/0x437 [ 3074.512477][T16417] netlink_sendmsg+0x882/0xe10 [ 3074.517233][T16417] ? aa_af_perm+0x260/0x260 [ 3074.521741][T16417] ? netlink_unicast+0x740/0x740 [ 3074.526691][T16417] ? retint_kernel+0x2b/0x2b [ 3074.531273][T16417] ? netlink_unicast+0x740/0x740 [ 3074.536210][T16417] sock_sendmsg+0xcf/0x120 [ 3074.540634][T16417] ____sys_sendmsg+0x6b9/0x7d0 [ 3074.545406][T16417] ? kernel_sendmsg+0x50/0x50 [ 3074.550187][T16417] ? mark_lock+0xbc/0x1220 [ 3074.554610][T16417] ___sys_sendmsg+0x100/0x170 [ 3074.559314][T16417] ? sendmsg_copy_msghdr+0x70/0x70 [ 3074.564457][T16417] ? __fget_files+0x329/0x4f0 [ 3074.569127][T16417] ? ksys_dup3+0x3c0/0x3c0 [ 3074.573529][T16417] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3074.579240][T16417] ? retint_kernel+0x2b/0x2b [ 3074.583863][T16417] ? __fget_light+0x208/0x270 [ 3074.588575][T16417] __sys_sendmsg+0xec/0x1b0 [ 3074.593064][T16417] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3074.598078][T16417] ? __x64_sys_futex+0x380/0x4f0 [ 3074.603062][T16417] ? trace_hardirqs_off_caller+0x55/0x230 [ 3074.608777][T16417] ? do_syscall_64+0x21/0x7d0 [ 3074.613444][T16417] do_syscall_64+0xf6/0x7d0 [ 3074.617941][T16417] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3074.623823][T16417] RIP: 0033:0x45c849 [ 3074.627702][T16417] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3074.647330][T16417] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3074.655867][T16417] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3074.663859][T16417] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3074.671811][T16417] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3074.679770][T16417] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3074.687875][T16417] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3074.701297][T16422] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3074.731416][T16422] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3074.731416][T16422] !' [ 3074.741866][T16422] CPU: 0 PID: 16422 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3074.750551][T16422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3074.760607][T16422] Call Trace: [ 3074.763906][T16422] dump_stack+0x188/0x20d [ 3074.768242][T16422] sysfs_warn_dup.cold+0x1c/0x2d [ 3074.773177][T16422] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3074.779236][T16422] sysfs_create_link+0x61/0xc0 [ 3074.783987][T16422] device_add+0x71c/0x1bc0 [ 3074.788400][T16422] ? uevent_show+0x360/0x360 [ 3074.792993][T16422] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3074.798960][T16422] wiphy_register+0x1c46/0x2720 [ 3074.803813][T16422] ? wiphy_unregister+0xf90/0xf90 [ 3074.808839][T16422] ? __kmalloc+0x161/0x7a0 [ 3074.813255][T16422] ? __kmalloc+0x629/0x7a0 [ 3074.817676][T16422] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3074.823221][T16422] ? ieee80211_register_hw+0x2dd/0x36a0 [ 3074.828771][T16422] ieee80211_register_hw+0x13d4/0x36a0 [ 3074.834232][T16422] ? __debug_object_init+0x4a1/0xe20 [ 3074.839530][T16422] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3074.844988][T16422] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3074.850526][T16422] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3074.856502][T16422] ? memset+0x20/0x40 [ 3074.860478][T16422] ? __hrtimer_init+0x134/0x260 [ 3074.865371][T16422] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3074.871087][T16422] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3074.876377][T16422] ? hwsim_register_received_nl+0x400/0x400 [ 3074.882283][T16422] hwsim_new_radio_nl+0x905/0xf60 [ 3074.887326][T16422] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3074.893319][T16422] ? __nla_validate_parse+0x2af/0x1cd0 [ 3074.898767][T16422] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3074.905087][T16422] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3074.911435][T16422] genl_rcv_msg+0x627/0xdf0 [ 3074.915943][T16422] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3074.922285][T16422] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3074.927782][T16422] ? retint_kernel+0x2b/0x2b [ 3074.932411][T16422] netlink_rcv_skb+0x15a/0x410 [ 3074.937159][T16422] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3074.943476][T16422] ? netlink_ack+0xa80/0xa80 [ 3074.948104][T16422] genl_rcv+0x24/0x40 [ 3074.952084][T16422] netlink_unicast+0x537/0x740 [ 3074.956843][T16422] ? netlink_attachskb+0x810/0x810 [ 3074.961949][T16422] ? _copy_from_iter_full+0x25c/0x870 [ 3074.967330][T16422] ? __phys_addr_symbol+0x2c/0x70 [ 3074.972376][T16422] ? __check_object_size+0x171/0x437 [ 3074.977645][T16422] netlink_sendmsg+0x882/0xe10 [ 3074.982406][T16422] ? aa_af_perm+0x260/0x260 [ 3074.986949][T16422] ? netlink_unicast+0x740/0x740 [ 3074.991892][T16422] ? netlink_unicast+0x740/0x740 [ 3074.996822][T16422] sock_sendmsg+0xcf/0x120 [ 3075.001229][T16422] ____sys_sendmsg+0x6b9/0x7d0 [ 3075.005999][T16422] ? kernel_sendmsg+0x50/0x50 [ 3075.010681][T16422] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3075.016153][T16422] ___sys_sendmsg+0x100/0x170 [ 3075.020836][T16422] ? sendmsg_copy_msghdr+0x70/0x70 [ 3075.025945][T16422] ? __fget_files+0x329/0x4f0 [ 3075.030624][T16422] ? ksys_dup3+0x3c0/0x3c0 [ 3075.035041][T16422] ? lock_acquire+0x197/0x420 [ 3075.039722][T16422] ? __might_fault+0xef/0x1d0 [ 3075.044417][T16422] ? __fget_light+0x208/0x270 [ 3075.049108][T16422] __sys_sendmsg+0xec/0x1b0 [ 3075.053621][T16422] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3075.058656][T16422] ? __x64_sys_clock_gettime+0x10e/0x240 [ 3075.064304][T16422] ? trace_hardirqs_off_caller+0x55/0x230 [ 3075.070014][T16422] ? do_syscall_64+0x21/0x7d0 [ 3075.074678][T16422] do_syscall_64+0xf6/0x7d0 [ 3075.079172][T16422] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3075.085053][T16422] RIP: 0033:0x45c849 [ 3075.088940][T16422] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3075.108526][T16422] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3075.116919][T16422] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3075.124870][T16422] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3075.132826][T16422] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3075.140780][T16422] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3075.148732][T16422] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:43:55 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024080705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:55 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc600a0011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:55 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:55 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000761d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:43:55 executing program 2: perf_event_open(&(0x7f0000000140)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000100)={0x2, 0x70, 0x615, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x0, 0x3}, 0x0, 0xfffffffffffffffc, 0x0, 0x0, 0x0, 0x9}, 0x0, 0x0, 0xffffffffffffffff, 0x0) bpf$PROG_LOAD(0x5, 0x0, 0x0) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, 0xffffffffffffffff) 23:43:55 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3088.829556][T16438] netlink: 'syz-executor.5': attribute type 8 has an invalid length. [ 3088.838576][T16438] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3088.853303][T16438] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3088.853303][T16438] !' [ 3088.863209][T16438] CPU: 1 PID: 16438 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3088.871890][T16438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3088.881949][T16438] Call Trace: [ 3088.885256][T16438] dump_stack+0x188/0x20d [ 3088.889609][T16438] sysfs_warn_dup.cold+0x1c/0x2d [ 3088.894562][T16438] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3088.900644][T16438] sysfs_create_link+0x61/0xc0 [ 3088.905403][T16438] device_add+0x71c/0x1bc0 [ 3088.909820][T16438] ? uevent_show+0x360/0x360 [ 3088.914407][T16438] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3088.920384][T16438] wiphy_register+0x1c46/0x2720 [ 3088.925234][T16438] ? wiphy_unregister+0xf90/0xf90 [ 3088.930258][T16438] ? __kmalloc+0x629/0x7a0 [ 3088.934678][T16438] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3088.940244][T16438] ieee80211_register_hw+0x13d4/0x36a0 [ 3088.945707][T16438] ? __debug_object_init+0x4a1/0xe20 [ 3088.951010][T16438] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3088.956465][T16438] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3088.962012][T16438] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3088.967995][T16438] ? memset+0x20/0x40 [ 3088.971965][T16438] ? __hrtimer_init+0x134/0x260 [ 3088.976803][T16438] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3088.982520][T16438] ? vprintk_func+0x81/0x17e [ 3088.987114][T16438] ? hwsim_register_received_nl+0x400/0x400 [ 3088.993014][T16438] hwsim_new_radio_nl+0x905/0xf60 [ 3088.998145][T16438] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3089.004025][T16438] ? cap_capable+0x1eb/0x250 [ 3089.008607][T16438] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3089.014948][T16438] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3089.021297][T16438] genl_rcv_msg+0x627/0xdf0 [ 3089.025880][T16438] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3089.032321][T16438] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3089.037612][T16438] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3089.043080][T16438] netlink_rcv_skb+0x15a/0x410 [ 3089.047840][T16438] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3089.054156][T16438] ? netlink_ack+0xa80/0xa80 [ 3089.058738][T16438] genl_rcv+0x24/0x40 [ 3089.062718][T16438] netlink_unicast+0x537/0x740 [ 3089.067490][T16438] ? netlink_attachskb+0x810/0x810 [ 3089.072592][T16438] ? _copy_from_iter_full+0x25c/0x870 [ 3089.077969][T16438] ? __phys_addr_symbol+0x2c/0x70 [ 3089.083008][T16438] ? __check_object_size+0x171/0x437 [ 3089.088289][T16438] netlink_sendmsg+0x882/0xe10 [ 3089.093036][T16438] ? aa_af_perm+0x260/0x260 [ 3089.097519][T16438] ? netlink_unicast+0x740/0x740 [ 3089.102462][T16438] ? netlink_unicast+0x740/0x740 [ 3089.107392][T16438] sock_sendmsg+0xcf/0x120 [ 3089.111794][T16438] ____sys_sendmsg+0x6b9/0x7d0 [ 3089.116553][T16438] ? kernel_sendmsg+0x50/0x50 [ 3089.121233][T16438] ? mark_lock+0xbc/0x1220 [ 3089.125646][T16438] ___sys_sendmsg+0x100/0x170 [ 3089.130316][T16438] ? sendmsg_copy_msghdr+0x70/0x70 [ 3089.135422][T16438] ? __fget_files+0x329/0x4f0 [ 3089.140097][T16438] ? ksys_dup3+0x3c0/0x3c0 [ 3089.144557][T16438] ? lock_acquire+0x197/0x420 [ 3089.149214][T16438] ? __might_fault+0xef/0x1d0 [ 3089.153876][T16438] ? __fget_light+0x208/0x270 [ 3089.158579][T16438] __sys_sendmsg+0xec/0x1b0 [ 3089.163082][T16438] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3089.168097][T16438] ? __x64_sys_futex+0x380/0x4f0 [ 3089.173036][T16438] ? trace_hardirqs_off_caller+0x55/0x230 [ 3089.178855][T16438] ? do_syscall_64+0x21/0x7d0 [ 3089.183526][T16438] do_syscall_64+0xf6/0x7d0 [ 3089.188019][T16438] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3089.193905][T16438] RIP: 0033:0x45c849 [ 3089.197792][T16438] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3089.217377][T16438] RSP: 002b:00007f17ede4ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3089.225844][T16438] RAX: ffffffffffffffda RBX: 00007f17ede4b6d4 RCX: 000000000045c849 [ 3089.233815][T16438] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3089.241806][T16438] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3089.249905][T16438] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3089.257917][T16438] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac [ 3089.270948][T16439] netlink: 18446 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3089.293384][T16439] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3089.293384][T16439] !' [ 3089.304349][T16439] CPU: 0 PID: 16439 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3089.313034][T16439] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3089.323086][T16439] Call Trace: [ 3089.326357][T16439] dump_stack+0x188/0x20d [ 3089.330723][T16439] sysfs_warn_dup.cold+0x1c/0x2d [ 3089.335645][T16439] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3089.341699][T16439] sysfs_create_link+0x61/0xc0 [ 3089.346456][T16439] device_add+0x71c/0x1bc0 [ 3089.350853][T16439] ? uevent_show+0x360/0x360 [ 3089.355419][T16439] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3089.361377][T16439] wiphy_register+0x1c46/0x2720 [ 3089.366206][T16439] ? wiphy_unregister+0xf90/0xf90 [ 3089.371210][T16439] ? __kmalloc+0x629/0x7a0 [ 3089.375601][T16439] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3089.381136][T16439] ieee80211_register_hw+0x13d4/0x36a0 [ 3089.386575][T16439] ? __debug_object_init+0x4a1/0xe20 [ 3089.391873][T16439] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3089.397310][T16439] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3089.402836][T16439] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3089.408850][T16439] ? memset+0x20/0x40 [ 3089.412829][T16439] ? __hrtimer_init+0x134/0x260 [ 3089.417795][T16439] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3089.423508][T16439] ? vprintk_func+0x81/0x17e [ 3089.428141][T16439] ? hwsim_register_received_nl+0x400/0x400 [ 3089.434027][T16439] hwsim_new_radio_nl+0x905/0xf60 [ 3089.439048][T16439] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3089.444921][T16439] ? cap_capable+0x1eb/0x250 [ 3089.449499][T16439] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3089.455810][T16439] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3089.462198][T16439] genl_rcv_msg+0x627/0xdf0 [ 3089.466686][T16439] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3089.473062][T16439] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 3089.478887][T16439] netlink_rcv_skb+0x15a/0x410 [ 3089.483642][T16439] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3089.489976][T16439] ? netlink_ack+0xa80/0xa80 [ 3089.494581][T16439] genl_rcv+0x24/0x40 [ 3089.498543][T16439] netlink_unicast+0x537/0x740 [ 3089.503292][T16439] ? netlink_attachskb+0x810/0x810 [ 3089.508380][T16439] ? _copy_from_iter_full+0x25c/0x870 [ 3089.513772][T16439] ? __phys_addr_symbol+0x2c/0x70 [ 3089.518772][T16439] ? __check_object_size+0x171/0x437 [ 3089.524038][T16439] netlink_sendmsg+0x882/0xe10 [ 3089.528781][T16439] ? aa_af_perm+0x260/0x260 [ 3089.533281][T16439] ? netlink_unicast+0x740/0x740 [ 3089.538253][T16439] ? netlink_unicast+0x740/0x740 [ 3089.543199][T16439] sock_sendmsg+0xcf/0x120 [ 3089.547599][T16439] ____sys_sendmsg+0x6b9/0x7d0 [ 3089.552344][T16439] ? kernel_sendmsg+0x50/0x50 [ 3089.557036][T16439] ? mark_lock+0xbc/0x1220 [ 3089.561528][T16439] ___sys_sendmsg+0x100/0x170 [ 3089.566191][T16439] ? sendmsg_copy_msghdr+0x70/0x70 [ 3089.571287][T16439] ? __fget_files+0x329/0x4f0 [ 3089.575945][T16439] ? ksys_dup3+0x3c0/0x3c0 [ 3089.580371][T16439] ? lock_acquire+0x197/0x420 [ 3089.585032][T16439] ? __might_fault+0xef/0x1d0 [ 3089.589687][T16439] ? __fget_light+0x208/0x270 [ 3089.594343][T16439] __sys_sendmsg+0xec/0x1b0 [ 3089.598833][T16439] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3089.603838][T16439] ? __x64_sys_futex+0x380/0x4f0 [ 3089.608757][T16439] ? trace_hardirqs_off_caller+0x55/0x230 [ 3089.614455][T16439] ? do_syscall_64+0x21/0x7d0 [ 3089.619109][T16439] do_syscall_64+0xf6/0x7d0 [ 3089.623594][T16439] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3089.629459][T16439] RIP: 0033:0x45c849 [ 3089.633343][T16439] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3089.652921][T16439] RSP: 002b:00007fce66789c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3089.661740][T16439] RAX: ffffffffffffffda RBX: 00007fce6678a6d4 RCX: 000000000045c849 [ 3089.670208][T16439] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3089.678164][T16439] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3089.686113][T16439] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff 23:43:56 executing program 5: [ 3089.694059][T16439] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac [ 3089.719481][T16440] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.0'. 23:43:56 executing program 5: 23:43:56 executing program 5: [ 3089.744586][T16440] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3089.744586][T16440] !' [ 3089.754546][T16440] CPU: 0 PID: 16440 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3089.763226][T16440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3089.773286][T16440] Call Trace: [ 3089.776588][T16440] dump_stack+0x188/0x20d [ 3089.780932][T16440] sysfs_warn_dup.cold+0x1c/0x2d [ 3089.785892][T16440] sysfs_do_create_link_sd.isra.0+0x119/0x130 23:43:56 executing program 5: [ 3089.791988][T16440] sysfs_create_link+0x61/0xc0 [ 3089.796773][T16440] device_add+0x71c/0x1bc0 [ 3089.801204][T16440] ? uevent_show+0x360/0x360 [ 3089.805806][T16440] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3089.811800][T16440] wiphy_register+0x1c46/0x2720 [ 3089.816675][T16440] ? wiphy_unregister+0xf90/0xf90 [ 3089.821705][T16440] ? __kmalloc+0x629/0x7a0 [ 3089.826153][T16440] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3089.831723][T16440] ieee80211_register_hw+0x13d4/0x36a0 [ 3089.837305][T16440] ? __debug_object_init+0x4a1/0xe20 23:43:56 executing program 5: 23:43:57 executing program 5: [ 3089.842616][T16440] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3089.848088][T16440] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3089.853641][T16440] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3089.859631][T16440] ? memset+0x20/0x40 [ 3089.863622][T16440] ? __hrtimer_init+0x134/0x260 [ 3089.868487][T16440] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3089.874225][T16440] ? vprintk_func+0x81/0x17e [ 3089.878838][T16440] ? hwsim_register_received_nl+0x400/0x400 [ 3089.884749][T16440] hwsim_new_radio_nl+0x905/0xf60 [ 3089.889785][T16440] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3089.895711][T16440] ? cap_capable+0x1eb/0x250 [ 3089.900319][T16440] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3089.906652][T16440] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3089.912992][T16440] genl_rcv_msg+0x627/0xdf0 [ 3089.917510][T16440] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3089.923862][T16440] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 3089.929671][T16440] netlink_rcv_skb+0x15a/0x410 [ 3089.934418][T16440] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3089.940729][T16440] ? netlink_ack+0xa80/0xa80 [ 3089.945467][T16440] genl_rcv+0x24/0x40 [ 3089.949434][T16440] netlink_unicast+0x537/0x740 [ 3089.954196][T16440] ? netlink_attachskb+0x810/0x810 [ 3089.959313][T16440] ? _copy_from_iter_full+0x25c/0x870 [ 3089.964717][T16440] ? __phys_addr_symbol+0x2c/0x70 [ 3089.969723][T16440] ? __check_object_size+0x171/0x437 [ 3089.974998][T16440] netlink_sendmsg+0x882/0xe10 [ 3089.979751][T16440] ? aa_af_perm+0x260/0x260 [ 3089.984276][T16440] ? netlink_unicast+0x740/0x740 [ 3089.989202][T16440] ? netlink_unicast+0x740/0x740 [ 3089.994118][T16440] sock_sendmsg+0xcf/0x120 [ 3089.998533][T16440] ____sys_sendmsg+0x6b9/0x7d0 [ 3090.003282][T16440] ? kernel_sendmsg+0x50/0x50 [ 3090.007950][T16440] ? mark_lock+0xbc/0x1220 [ 3090.012441][T16440] ___sys_sendmsg+0x100/0x170 [ 3090.017169][T16440] ? sendmsg_copy_msghdr+0x70/0x70 [ 3090.022283][T16440] ? __fget_files+0x329/0x4f0 [ 3090.026966][T16440] ? ksys_dup3+0x3c0/0x3c0 [ 3090.031362][T16440] ? lock_acquire+0x197/0x420 [ 3090.036021][T16440] ? __might_fault+0xef/0x1d0 [ 3090.040730][T16440] ? __fget_light+0x208/0x270 [ 3090.045393][T16440] __sys_sendmsg+0xec/0x1b0 [ 3090.049885][T16440] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3090.054892][T16440] ? __x64_sys_futex+0x380/0x4f0 [ 3090.059990][T16440] ? trace_hardirqs_off_caller+0x55/0x230 [ 3090.065710][T16440] ? do_syscall_64+0x21/0x7d0 [ 3090.070371][T16440] do_syscall_64+0xf6/0x7d0 [ 3090.074918][T16440] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3090.080791][T16440] RIP: 0033:0x45c849 [ 3090.084667][T16440] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3090.104252][T16440] RSP: 002b:00007fda9c338c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3090.112655][T16440] RAX: ffffffffffffffda RBX: 00007fda9c3396d4 RCX: 000000000045c849 [ 3090.120621][T16440] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3090.128593][T16440] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3090.136553][T16440] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3090.144503][T16440] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac [ 3090.167402][T16436] netlink: 18446 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3090.181541][T16436] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3090.181541][T16436] !' [ 3090.201013][T16436] CPU: 1 PID: 16436 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3090.209723][T16436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3090.219788][T16436] Call Trace: [ 3090.223110][T16436] dump_stack+0x188/0x20d [ 3090.227458][T16436] sysfs_warn_dup.cold+0x1c/0x2d [ 3090.232425][T16436] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3090.238529][T16436] sysfs_create_link+0x61/0xc0 [ 3090.243284][T16436] device_add+0x71c/0x1bc0 [ 3090.247683][T16436] ? uevent_show+0x360/0x360 [ 3090.252265][T16436] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3090.258237][T16436] wiphy_register+0x1c46/0x2720 [ 3090.263076][T16436] ? wiphy_unregister+0xf90/0xf90 [ 3090.268082][T16436] ? __kmalloc+0x629/0x7a0 [ 3090.272496][T16436] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3090.278035][T16436] ieee80211_register_hw+0x13d4/0x36a0 [ 3090.283489][T16436] ? __debug_object_init+0x4a1/0xe20 [ 3090.288761][T16436] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3090.294202][T16436] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3090.299725][T16436] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3090.305694][T16436] ? memset+0x20/0x40 [ 3090.309671][T16436] ? __hrtimer_init+0x134/0x260 [ 3090.314529][T16436] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3090.320234][T16436] ? vprintk_func+0x81/0x17e [ 3090.324814][T16436] ? hwsim_register_received_nl+0x400/0x400 [ 3090.330710][T16436] hwsim_new_radio_nl+0x905/0xf60 [ 3090.335724][T16436] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3090.341637][T16436] ? cap_capable+0x1eb/0x250 [ 3090.346218][T16436] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3090.352522][T16436] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3090.358841][T16436] genl_rcv_msg+0x627/0xdf0 [ 3090.363336][T16436] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3090.369648][T16436] ? retint_kernel+0x2b/0x2b [ 3090.374226][T16436] netlink_rcv_skb+0x15a/0x410 [ 3090.378972][T16436] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3090.385281][T16436] ? netlink_ack+0xa80/0xa80 [ 3090.389863][T16436] genl_rcv+0x24/0x40 [ 3090.393827][T16436] netlink_unicast+0x537/0x740 [ 3090.398571][T16436] ? netlink_attachskb+0x810/0x810 [ 3090.403659][T16436] ? _copy_from_iter_full+0x25c/0x870 [ 3090.409032][T16436] netlink_sendmsg+0x882/0xe10 [ 3090.413780][T16436] ? aa_af_perm+0x260/0x260 [ 3090.418264][T16436] ? netlink_unicast+0x740/0x740 [ 3090.423185][T16436] ? netlink_unicast+0x740/0x740 [ 3090.428100][T16436] sock_sendmsg+0xcf/0x120 [ 3090.432499][T16436] ____sys_sendmsg+0x6b9/0x7d0 [ 3090.437259][T16436] ? kernel_sendmsg+0x50/0x50 [ 3090.441915][T16436] ? mark_lock+0xbc/0x1220 [ 3090.446320][T16436] ___sys_sendmsg+0x100/0x170 [ 3090.450999][T16436] ? sendmsg_copy_msghdr+0x70/0x70 [ 3090.456094][T16436] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3090.461529][T16436] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3090.466793][T16436] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3090.472252][T16436] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3090.477961][T16436] ? retint_kernel+0x2b/0x2b [ 3090.482550][T16436] __sys_sendmsg+0xec/0x1b0 [ 3090.487047][T16436] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3090.492111][T16436] ? __x64_sys_futex+0x380/0x4f0 [ 3090.497035][T16436] ? trace_hardirqs_off_caller+0x55/0x230 [ 3090.502750][T16436] ? do_syscall_64+0x21/0x7d0 [ 3090.507418][T16436] do_syscall_64+0xf6/0x7d0 [ 3090.511911][T16436] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3090.517791][T16436] RIP: 0033:0x45c849 [ 3090.521680][T16436] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3090.541279][T16436] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3090.549700][T16436] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3090.557717][T16436] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3090.565674][T16436] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3090.573672][T16436] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3090.581662][T16436] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:44:07 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e480000240a0705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:07 executing program 5: bpf$PROG_LOAD(0x5, &(0x7f0000000080)={0x17, 0x8, &(0x7f0000000980)=ANY=[@ANYBLOB="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"], &(0x7f0000000100)='GPL\x00'}, 0x48) 23:44:07 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000761d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:07 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc600b0011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:07 executing program 2: r0 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) bpf$PROG_LOAD(0x5, 0x0, 0x0) perf_event_open(&(0x7f0000000140)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = gettid() r2 = perf_event_open(&(0x7f0000000100)={0x2, 0x70, 0x615, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r3 = bpf$PROG_LOAD(0x5, &(0x7f0000000080)={0x5, 0x3, &(0x7f00000004c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000000)='GPL\x00', 0x5, 0xfd39, &(0x7f000000cf3d)=""/195}, 0x48) ioctl$PERF_EVENT_IOC_SET_BPF(r2, 0x40042408, r3) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f00000000c0)={r1, r2, 0x0, 0x0, 0x0}, 0x30) 23:44:07 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3100.062380][T16458] [ 3100.065070][T16458] ********************************************************** [ 3100.076052][T16458] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 3100.083598][T16458] ** ** [ 3100.091030][T16458] ** trace_printk() being used. Allocating extra memory. ** [ 3100.098389][T16458] ** ** [ 3100.105867][T16458] ** This means that this is a DEBUG kernel and it is ** [ 3100.114039][T16458] ** unsafe for production use. ** [ 3100.114956][T16461] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3100.129406][T16458] ** ** [ 3100.138535][T16458] ** If you see this message and you are not debugging ** [ 3100.146719][T16458] ** the kernel, report this immediately to your vendor! ** [ 3100.154174][T16458] ** ** [ 3100.154812][T16461] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3100.154812][T16461] !' [ 3100.161614][T16458] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 3100.161621][T16458] ********************************************************** [ 3100.192648][T16461] CPU: 0 PID: 16461 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3100.201330][T16461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3100.211390][T16461] Call Trace: [ 3100.214671][T16461] dump_stack+0x188/0x20d [ 3100.218989][T16461] sysfs_warn_dup.cold+0x1c/0x2d [ 3100.223942][T16461] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3100.230009][T16461] sysfs_create_link+0x61/0xc0 [ 3100.234777][T16461] device_add+0x71c/0x1bc0 [ 3100.239191][T16461] ? uevent_show+0x360/0x360 [ 3100.243785][T16461] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3100.249760][T16461] wiphy_register+0x1c46/0x2720 [ 3100.254609][T16461] ? wiphy_unregister+0xf90/0xf90 [ 3100.259627][T16461] ? __kmalloc+0x629/0x7a0 [ 3100.264041][T16461] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3100.269577][T16461] ieee80211_register_hw+0x13d4/0x36a0 [ 3100.275110][T16461] ? __debug_object_init+0x4a1/0xe20 [ 3100.280389][T16461] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3100.285834][T16461] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3100.291378][T16461] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3100.297359][T16461] ? memset+0x20/0x40 [ 3100.301334][T16461] ? __hrtimer_init+0x134/0x260 [ 3100.306196][T16461] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3100.311912][T16461] ? vprintk_func+0x81/0x17e [ 3100.316496][T16461] ? hwsim_register_received_nl+0x400/0x400 [ 3100.322390][T16461] hwsim_new_radio_nl+0x905/0xf60 [ 3100.327402][T16461] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3100.333282][T16461] ? cap_capable+0x1eb/0x250 [ 3100.337866][T16461] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3100.344173][T16461] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3100.350484][T16461] genl_rcv_msg+0x627/0xdf0 [ 3100.354977][T16461] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3100.361294][T16461] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 3100.367088][T16461] netlink_rcv_skb+0x15a/0x410 [ 3100.371836][T16461] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3100.378148][T16461] ? netlink_ack+0xa80/0xa80 [ 3100.382744][T16461] genl_rcv+0x24/0x40 [ 3100.386715][T16461] netlink_unicast+0x537/0x740 [ 3100.391479][T16461] ? netlink_attachskb+0x810/0x810 [ 3100.396571][T16461] ? _copy_from_iter_full+0x25c/0x870 [ 3100.401928][T16461] ? __phys_addr_symbol+0x2c/0x70 [ 3100.406935][T16461] ? __check_object_size+0x171/0x437 [ 3100.412209][T16461] netlink_sendmsg+0x882/0xe10 [ 3100.416960][T16461] ? aa_af_perm+0x260/0x260 [ 3100.421454][T16461] ? netlink_unicast+0x740/0x740 [ 3100.426379][T16461] ? netlink_unicast+0x740/0x740 [ 3100.431297][T16461] sock_sendmsg+0xcf/0x120 [ 3100.435699][T16461] ____sys_sendmsg+0x6b9/0x7d0 [ 3100.440446][T16461] ? kernel_sendmsg+0x50/0x50 [ 3100.445119][T16461] ? mark_lock+0xbc/0x1220 [ 3100.449534][T16461] ___sys_sendmsg+0x100/0x170 [ 3100.454196][T16461] ? sendmsg_copy_msghdr+0x70/0x70 [ 3100.459302][T16461] ? __fget_files+0x329/0x4f0 [ 3100.463970][T16461] ? ksys_dup3+0x3c0/0x3c0 [ 3100.468368][T16461] ? lock_acquire+0x197/0x420 [ 3100.473027][T16461] ? __might_fault+0xef/0x1d0 [ 3100.477690][T16461] ? __fget_light+0x208/0x270 [ 3100.482355][T16461] __sys_sendmsg+0xec/0x1b0 [ 3100.486844][T16461] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3100.491859][T16461] ? __x64_sys_futex+0x380/0x4f0 [ 3100.496785][T16461] ? trace_hardirqs_off_caller+0x55/0x230 [ 3100.502490][T16461] ? do_syscall_64+0x21/0x7d0 [ 3100.507174][T16461] do_syscall_64+0xf6/0x7d0 [ 3100.511691][T16461] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3100.517574][T16461] RIP: 0033:0x45c849 [ 3100.521460][T16461] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3100.541166][T16461] RSP: 002b:00007fda9c338c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3100.549587][T16461] RAX: ffffffffffffffda RBX: 00007fda9c3396d4 RCX: 000000000045c849 [ 3100.557557][T16461] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3100.565886][T16461] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3100.573850][T16461] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3100.581815][T16461] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac [ 3100.616106][T16462] netlink: 18446 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3100.656114][T16462] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3100.656114][T16462] !' 23:44:07 executing program 5: perf_event_open(&(0x7f0000000140)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(0xffffffffffffffff, 0x11b, 0x2, 0x0, 0x0) perf_event_open(&(0x7f0000000100)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3c43, 0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) setsockopt$sock_attach_bpf(0xffffffffffffffff, 0x29, 0x24, &(0x7f00000000c0), 0x4) sendmsg$kcm(0xffffffffffffffff, 0x0, 0x0) bpf$OBJ_PIN_PROG(0x6, 0x0, 0x0) [ 3100.678815][T16462] CPU: 1 PID: 16462 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3100.687708][T16462] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3100.697769][T16462] Call Trace: [ 3100.701073][T16462] dump_stack+0x188/0x20d [ 3100.705426][T16462] sysfs_warn_dup.cold+0x1c/0x2d [ 3100.710381][T16462] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3100.716555][T16462] sysfs_create_link+0x61/0xc0 [ 3100.721514][T16462] device_add+0x71c/0x1bc0 23:44:07 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) sendmsg(0xffffffffffffffff, 0x0, 0x0) socket$kcm(0x29, 0x0, 0x0) openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x26e1, 0x0) openat$tun(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/net/tun\x00', 0x0, 0x0) socket$kcm(0x10, 0x2, 0x4) r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000200)='cgroup.stat\x00', 0x26e1, 0x0) r1 = socket$kcm(0x2, 0x2, 0x0) setsockopt$sock_attach_bpf(r1, 0x1, 0x3e, &(0x7f00000002c0)=r0, 0x161) sendmsg$kcm(r1, &(0x7f0000003d00)={&(0x7f0000000380)=@in={0x2, 0x4e23, @multicast1}, 0x80, 0x0}, 0xfd00) write$cgroup_subtree(r1, &(0x7f0000000280)={[{0x0, 'memory'}]}, 0xfdef) [ 3100.725954][T16462] ? uevent_show+0x360/0x360 [ 3100.730702][T16462] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3100.736700][T16462] wiphy_register+0x1c46/0x2720 [ 3100.741575][T16462] ? wiphy_unregister+0xf90/0xf90 [ 3100.746614][T16462] ? __kmalloc+0x629/0x7a0 [ 3100.751047][T16462] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3100.756609][T16462] ieee80211_register_hw+0x13d4/0x36a0 [ 3100.762081][T16462] ? __debug_object_init+0x4a1/0xe20 [ 3100.767394][T16462] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3100.772866][T16462] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3100.778422][T16462] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3100.784675][T16462] ? memset+0x20/0x40 [ 3100.788666][T16462] ? __hrtimer_init+0x134/0x260 [ 3100.793531][T16462] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3100.799260][T16462] ? vprintk_func+0x81/0x17e [ 3100.803872][T16462] ? hwsim_register_received_nl+0x400/0x400 [ 3100.809784][T16462] hwsim_new_radio_nl+0x905/0xf60 [ 3100.814824][T16462] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3100.820723][T16462] ? cap_capable+0x1eb/0x250 23:44:07 executing program 5: perf_event_open(&(0x7f0000000140)={0x2, 0x70, 0xa1, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000001380)={0x0, 0xffffffffffffffff, 0x0, 0x24, &(0x7f0000000000)='/proc/sys/net/ipv\x14\x00\x00s/sync_\x00le\xf44.\xab%n'}, 0x30) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) [ 3100.825329][T16462] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3100.831666][T16462] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3100.837997][T16462] genl_rcv_msg+0x627/0xdf0 [ 3100.842507][T16462] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3100.848861][T16462] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 3100.854696][T16462] netlink_rcv_skb+0x15a/0x410 [ 3100.859496][T16462] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3100.865837][T16462] ? netlink_ack+0xa80/0xa80 [ 3100.870450][T16462] genl_rcv+0x24/0x40 [ 3100.874438][T16462] netlink_unicast+0x537/0x740 [ 3100.879207][T16462] ? netlink_attachskb+0x810/0x810 [ 3100.884298][T16462] ? _copy_from_iter_full+0x25c/0x870 [ 3100.889652][T16462] ? __phys_addr_symbol+0x2c/0x70 [ 3100.894709][T16462] ? __check_object_size+0x171/0x437 [ 3100.899995][T16462] netlink_sendmsg+0x882/0xe10 [ 3100.904748][T16462] ? aa_af_perm+0x260/0x260 [ 3100.909286][T16462] ? netlink_unicast+0x740/0x740 [ 3100.914238][T16462] ? netlink_unicast+0x740/0x740 [ 3100.919162][T16462] sock_sendmsg+0xcf/0x120 [ 3100.923559][T16462] ____sys_sendmsg+0x6b9/0x7d0 [ 3100.928306][T16462] ? kernel_sendmsg+0x50/0x50 [ 3100.933005][T16462] ? mark_lock+0xbc/0x1220 [ 3100.937406][T16462] ___sys_sendmsg+0x100/0x170 [ 3100.942068][T16462] ? sendmsg_copy_msghdr+0x70/0x70 [ 3100.947173][T16462] ? __fget_files+0x329/0x4f0 [ 3100.951836][T16462] ? ksys_dup3+0x3c0/0x3c0 [ 3100.956230][T16462] ? lock_acquire+0x197/0x420 [ 3100.960894][T16462] ? __might_fault+0xef/0x1d0 [ 3100.965618][T16462] ? __fget_light+0x208/0x270 [ 3100.970294][T16462] __sys_sendmsg+0xec/0x1b0 [ 3100.974828][T16462] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3100.980018][T16462] ? __x64_sys_futex+0x380/0x4f0 [ 3100.984951][T16462] ? trace_hardirqs_off_caller+0x55/0x230 [ 3100.990767][T16462] ? do_syscall_64+0x21/0x7d0 [ 3100.995433][T16462] do_syscall_64+0xf6/0x7d0 [ 3100.999928][T16462] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3101.005813][T16462] RIP: 0033:0x45c849 [ 3101.009709][T16462] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3101.029306][T16462] RSP: 002b:00007fce66789c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3101.037712][T16462] RAX: ffffffffffffffda RBX: 00007fce6678a6d4 RCX: 000000000045c849 [ 3101.045673][T16462] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3101.053638][T16462] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3101.061590][T16462] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3101.069562][T16462] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac 23:44:08 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) sendmsg(0xffffffffffffffff, 0x0, 0x0) socket$kcm(0x29, 0x0, 0x0) openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x26e1, 0x0) openat$tun(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/net/tun\x00', 0x0, 0x0) socket$kcm(0x10, 0x2, 0x4) r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000200)='cgroup.stat\x00', 0x26e1, 0x0) r1 = socket$kcm(0x2, 0x2, 0x0) setsockopt$sock_attach_bpf(r1, 0x1, 0x3e, &(0x7f00000002c0)=r0, 0x161) sendmsg$kcm(r1, &(0x7f0000003d00)={&(0x7f0000000380)=@in={0x2, 0x4e23, @multicast1}, 0x80, 0x0}, 0xfd00) write$cgroup_subtree(r1, &(0x7f0000000280)={[{0x0, 'memory'}]}, 0xfdef) [ 3101.093332][T16459] netlink: 18446 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3101.128104][T16459] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3101.128104][T16459] !' [ 3101.170372][T16459] CPU: 1 PID: 16459 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3101.179097][T16459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3101.189161][T16459] Call Trace: [ 3101.192452][T16459] dump_stack+0x188/0x20d [ 3101.197164][T16459] sysfs_warn_dup.cold+0x1c/0x2d [ 3101.202109][T16459] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3101.208175][T16459] sysfs_create_link+0x61/0xc0 [ 3101.212947][T16459] device_add+0x71c/0x1bc0 [ 3101.217456][T16459] ? uevent_show+0x360/0x360 [ 3101.222040][T16459] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3101.228003][T16459] wiphy_register+0x1c46/0x2720 [ 3101.232858][T16459] ? wiphy_unregister+0xf90/0xf90 [ 3101.237911][T16459] ? __kmalloc+0x629/0x7a0 [ 3101.242314][T16459] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3101.248026][T16459] ieee80211_register_hw+0x13d4/0x36a0 [ 3101.253484][T16459] ? __debug_object_init+0x4a1/0xe20 [ 3101.258770][T16459] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3101.264248][T16459] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3101.269813][T16459] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3101.275820][T16459] ? memset+0x20/0x40 [ 3101.279902][T16459] ? __hrtimer_init+0x134/0x260 [ 3101.284763][T16459] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3101.290483][T16459] ? vprintk_func+0x81/0x17e [ 3101.295150][T16459] ? hwsim_register_received_nl+0x400/0x400 [ 3101.301047][T16459] hwsim_new_radio_nl+0x905/0xf60 [ 3101.306107][T16459] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3101.312001][T16459] ? cap_capable+0x1eb/0x250 [ 3101.316605][T16459] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3101.322918][T16459] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3101.329230][T16459] genl_rcv_msg+0x627/0xdf0 [ 3101.333737][T16459] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3101.346311][T16459] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3101.351590][T16459] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3101.357053][T16459] netlink_rcv_skb+0x15a/0x410 [ 3101.361813][T16459] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3101.368385][T16459] ? netlink_ack+0xa80/0xa80 [ 3101.372985][T16459] genl_rcv+0x24/0x40 [ 3101.376968][T16459] netlink_unicast+0x537/0x740 [ 3101.381715][T16459] ? netlink_attachskb+0x810/0x810 [ 3101.386904][T16459] ? _copy_from_iter_full+0x25c/0x870 [ 3101.392268][T16459] ? __phys_addr_symbol+0x2c/0x70 [ 3101.397299][T16459] ? __check_object_size+0x171/0x437 [ 3101.402917][T16459] netlink_sendmsg+0x882/0xe10 [ 3101.407674][T16459] ? aa_af_perm+0x260/0x260 [ 3101.412173][T16459] ? netlink_unicast+0x740/0x740 [ 3101.417123][T16459] ? netlink_unicast+0x740/0x740 [ 3101.422042][T16459] sock_sendmsg+0xcf/0x120 [ 3101.426439][T16459] ____sys_sendmsg+0x6b9/0x7d0 [ 3101.431196][T16459] ? kernel_sendmsg+0x50/0x50 [ 3101.435866][T16459] ? mark_lock+0xbc/0x1220 [ 3101.440264][T16459] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3101.445705][T16459] ___sys_sendmsg+0x100/0x170 [ 3101.450378][T16459] ? sendmsg_copy_msghdr+0x70/0x70 [ 3101.456788][T16459] ? __fget_files+0x329/0x4f0 [ 3101.462141][T16459] ? ksys_dup3+0x3c0/0x3c0 [ 3101.466533][T16459] ? lock_acquire+0x197/0x420 [ 3101.471203][T16459] ? __might_fault+0xef/0x1d0 [ 3101.475960][T16459] ? __fget_light+0x208/0x270 [ 3101.480623][T16459] __sys_sendmsg+0xec/0x1b0 [ 3101.485106][T16459] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3101.490120][T16459] ? __x64_sys_futex+0x380/0x4f0 [ 3101.495593][T16459] ? trace_hardirqs_off_caller+0x55/0x230 [ 3101.501324][T16459] ? do_syscall_64+0x21/0x7d0 [ 3101.505995][T16459] do_syscall_64+0xf6/0x7d0 [ 3101.510505][T16459] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3101.516396][T16459] RIP: 0033:0x45c849 [ 3101.520284][T16459] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3101.540565][T16459] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3101.548969][T16459] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3101.557022][T16459] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 23:44:08 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000728d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:08 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc600c0011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3101.564992][T16459] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3101.572973][T16459] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3101.581057][T16459] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3101.684346][T16483] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3101.717234][T16483] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3101.717234][T16483] !' [ 3101.727502][T16483] CPU: 1 PID: 16483 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3101.736203][T16483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3101.746261][T16483] Call Trace: [ 3101.749549][T16483] dump_stack+0x188/0x20d [ 3101.753890][T16483] sysfs_warn_dup.cold+0x1c/0x2d [ 3101.758839][T16483] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3101.765038][T16483] sysfs_create_link+0x61/0xc0 [ 3101.769803][T16483] device_add+0x71c/0x1bc0 [ 3101.774239][T16483] ? uevent_show+0x360/0x360 [ 3101.778828][T16483] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3101.784816][T16483] wiphy_register+0x1c46/0x2720 [ 3101.789684][T16483] ? wiphy_unregister+0xf90/0xf90 [ 3101.794709][T16483] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3101.800439][T16483] ? retint_kernel+0x2b/0x2b [ 3101.805023][T16483] ? ieee80211_register_hw+0x243e/0x36a0 [ 3101.810658][T16483] ieee80211_register_hw+0x13d4/0x36a0 [ 3101.816166][T16483] ? __debug_object_init+0x4a1/0xe20 [ 3101.821449][T16483] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3101.826894][T16483] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3101.832430][T16483] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3101.838440][T16483] ? memset+0x20/0x40 [ 3101.842439][T16483] ? __hrtimer_init+0x134/0x260 [ 3101.847320][T16483] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3101.853048][T16483] ? hwsim_register_received_nl+0x400/0x400 [ 3101.858950][T16483] ? vprintk_func+0x81/0x17e [ 3101.863535][T16483] hwsim_new_radio_nl+0x905/0xf60 [ 3101.868546][T16483] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3101.874001][T16483] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3101.879891][T16483] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3101.885635][T16483] genl_rcv_msg+0x627/0xdf0 [ 3101.890144][T16483] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3101.896466][T16483] ? retint_kernel+0x2b/0x2b [ 3101.901050][T16483] netlink_rcv_skb+0x15a/0x410 [ 3101.906229][T16483] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3101.912573][T16483] ? netlink_ack+0xa80/0xa80 [ 3101.917175][T16483] genl_rcv+0x24/0x40 [ 3101.921141][T16483] netlink_unicast+0x537/0x740 [ 3101.925901][T16483] ? netlink_attachskb+0x810/0x810 [ 3101.931005][T16483] ? _copy_from_iter_full+0x25c/0x870 [ 3101.936368][T16483] ? __phys_addr_symbol+0x2c/0x70 [ 3101.941398][T16483] ? __check_object_size+0x171/0x437 [ 3101.946666][T16483] netlink_sendmsg+0x882/0xe10 [ 3101.951426][T16483] ? aa_af_perm+0x260/0x260 [ 3101.955921][T16483] ? netlink_unicast+0x740/0x740 [ 3101.960846][T16483] ? netlink_unicast+0x740/0x740 [ 3101.965762][T16483] sock_sendmsg+0xcf/0x120 [ 3101.970173][T16483] ____sys_sendmsg+0x6b9/0x7d0 [ 3101.974929][T16483] ? kernel_sendmsg+0x50/0x50 [ 3101.979589][T16483] ? mark_lock+0xbc/0x1220 [ 3101.984003][T16483] ___sys_sendmsg+0x100/0x170 [ 3101.988673][T16483] ? sendmsg_copy_msghdr+0x70/0x70 [ 3101.993797][T16483] ? __fget_files+0x329/0x4f0 [ 3101.998466][T16483] ? ksys_dup3+0x3c0/0x3c0 [ 3102.002874][T16483] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3102.008572][T16483] ? retint_kernel+0x2b/0x2b [ 3102.013172][T16483] ? __fget_light+0x208/0x270 [ 3102.017866][T16483] __sys_sendmsg+0xec/0x1b0 [ 3102.022366][T16483] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3102.027393][T16483] ? __x64_sys_futex+0x380/0x4f0 [ 3102.032340][T16483] ? trace_hardirqs_off_caller+0x55/0x230 [ 3102.038066][T16483] ? do_syscall_64+0x21/0x7d0 [ 3102.042743][T16483] do_syscall_64+0xf6/0x7d0 [ 3102.047279][T16483] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3102.053163][T16483] RIP: 0033:0x45c849 [ 3102.057052][T16483] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3102.076643][T16483] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3102.085052][T16483] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3102.093016][T16483] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3102.100989][T16483] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3102.108947][T16483] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3102.116943][T16483] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3102.135150][T16482] netlink: 18446 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3102.166897][T16482] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3102.166897][T16482] !' [ 3102.176964][T16482] CPU: 1 PID: 16482 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3102.185644][T16482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3102.195719][T16482] Call Trace: [ 3102.199021][T16482] dump_stack+0x188/0x20d [ 3102.203371][T16482] sysfs_warn_dup.cold+0x1c/0x2d [ 3102.208327][T16482] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3102.214410][T16482] sysfs_create_link+0x61/0xc0 [ 3102.219183][T16482] device_add+0x71c/0x1bc0 [ 3102.223618][T16482] ? __sanitizer_cov_trace_switch+0x32/0x70 [ 3102.229519][T16482] ? uevent_show+0x360/0x360 [ 3102.234551][T16482] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3102.240543][T16482] wiphy_register+0x1c46/0x2720 [ 3102.245420][T16482] ? wiphy_unregister+0xf90/0xf90 [ 3102.250453][T16482] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3102.256173][T16482] ? retint_kernel+0x2b/0x2b [ 3102.260814][T16482] ? ieee80211_register_hw+0x1005/0x36a0 [ 3102.266434][T16482] ieee80211_register_hw+0x13d4/0x36a0 [ 3102.271942][T16482] ? __debug_object_init+0x4a1/0xe20 [ 3102.277228][T16482] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3102.282679][T16482] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3102.288212][T16482] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3102.294187][T16482] ? memset+0x20/0x40 [ 3102.298166][T16482] ? __hrtimer_init+0x134/0x260 [ 3102.303002][T16482] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3102.308707][T16482] ? vprintk_func+0x81/0x17e [ 3102.313425][T16482] ? hwsim_register_received_nl+0x400/0x400 [ 3102.319419][T16482] hwsim_new_radio_nl+0x905/0xf60 [ 3102.324443][T16482] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3102.330332][T16482] ? cap_capable+0x1eb/0x250 [ 3102.334930][T16482] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3102.341256][T16482] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3102.347580][T16482] genl_rcv_msg+0x627/0xdf0 [ 3102.352099][T16482] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3102.358429][T16482] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3102.363718][T16482] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3102.369174][T16482] netlink_rcv_skb+0x15a/0x410 [ 3102.373947][T16482] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3102.380292][T16482] ? netlink_ack+0xa80/0xa80 [ 3102.384885][T16482] genl_rcv+0x24/0x40 [ 3102.388857][T16482] netlink_unicast+0x537/0x740 [ 3102.393631][T16482] ? netlink_attachskb+0x810/0x810 [ 3102.398734][T16482] ? _copy_from_iter_full+0x25c/0x870 [ 3102.404121][T16482] ? __phys_addr_symbol+0x2c/0x70 [ 3102.409127][T16482] ? __check_object_size+0x171/0x437 [ 3102.414398][T16482] netlink_sendmsg+0x882/0xe10 [ 3102.419150][T16482] ? retint_kernel+0x2b/0x2b [ 3102.423741][T16482] ? netlink_unicast+0x740/0x740 [ 3102.428681][T16482] ? netlink_unicast+0x740/0x740 [ 3102.433626][T16482] ? netlink_unicast+0x740/0x740 [ 3102.438582][T16482] sock_sendmsg+0xcf/0x120 [ 3102.442985][T16482] ____sys_sendmsg+0x6b9/0x7d0 [ 3102.447772][T16482] ? kernel_sendmsg+0x50/0x50 [ 3102.452448][T16482] ? mark_lock+0xbc/0x1220 [ 3102.456910][T16482] ___sys_sendmsg+0x100/0x170 [ 3102.461613][T16482] ? sendmsg_copy_msghdr+0x70/0x70 [ 3102.466731][T16482] ? __fget_files+0x329/0x4f0 [ 3102.471545][T16482] ? ksys_dup3+0x3c0/0x3c0 [ 3102.475950][T16482] ? lock_acquire+0x197/0x420 [ 3102.480621][T16482] ? __might_fault+0xef/0x1d0 [ 3102.485294][T16482] ? __fget_light+0x208/0x270 [ 3102.489964][T16482] __sys_sendmsg+0xec/0x1b0 [ 3102.494454][T16482] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3102.499477][T16482] ? do_syscall_64+0x4f/0x7d0 [ 3102.504142][T16482] do_syscall_64+0xf6/0x7d0 [ 3102.508633][T16482] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3102.514608][T16482] RIP: 0033:0x45c849 [ 3102.518487][T16482] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3102.538073][T16482] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3102.546464][T16482] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3102.554421][T16482] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3102.562373][T16482] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3102.570343][T16482] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3102.578296][T16482] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:44:18 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e480000240e0705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:18 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:18 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x0, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:18 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc600d0011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:18 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3111.394944][T16496] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3111.419209][T16496] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3111.419209][T16496] !' [ 3111.429684][T16496] CPU: 0 PID: 16496 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3111.438361][T16496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3111.448592][T16496] Call Trace: [ 3111.451888][T16496] dump_stack+0x188/0x20d [ 3111.456231][T16496] sysfs_warn_dup.cold+0x1c/0x2d [ 3111.461169][T16496] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3111.469193][T16496] sysfs_create_link+0x61/0xc0 [ 3111.474110][T16496] device_add+0x71c/0x1bc0 [ 3111.478517][T16496] ? __sanitizer_cov_trace_switch+0xe/0x70 [ 3111.484379][T16496] ? uevent_show+0x360/0x360 [ 3111.497587][T16496] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3111.503578][T16496] wiphy_register+0x1c46/0x2720 [ 3111.508419][T16496] ? wiphy_unregister+0xf90/0xf90 [ 3111.513468][T16496] ? retint_kernel+0x2b/0x2b [ 3111.518051][T16496] ? ieee80211_register_hw+0x1117/0x36a0 [ 3111.523681][T16496] ? ieee80211_register_hw+0x1124/0x36a0 [ 3111.529308][T16496] ieee80211_register_hw+0x13d4/0x36a0 [ 3111.534780][T16496] ? calibrate_delay.cold+0x3db/0x3f6 [ 3111.540141][T16496] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3111.545590][T16496] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3111.551337][T16496] ? memset+0x20/0x40 [ 3111.555300][T16496] ? __hrtimer_init+0x134/0x260 [ 3111.560141][T16496] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3111.565954][T16496] ? hwsim_register_received_nl+0x400/0x400 [ 3111.571847][T16496] hwsim_new_radio_nl+0x905/0xf60 [ 3111.576971][T16496] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3111.582250][T16496] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3111.588194][T16496] genl_rcv_msg+0x627/0xdf0 [ 3111.592801][T16496] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3111.599173][T16496] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3111.604447][T16496] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3111.609981][T16496] netlink_rcv_skb+0x15a/0x410 [ 3111.614733][T16496] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3111.621047][T16496] ? netlink_ack+0xa80/0xa80 [ 3111.625630][T16496] genl_rcv+0x24/0x40 [ 3111.629610][T16496] netlink_unicast+0x537/0x740 [ 3111.634374][T16496] ? netlink_attachskb+0x810/0x810 [ 3111.639526][T16496] ? _copy_from_iter_full+0x25c/0x870 [ 3111.645166][T16496] ? __phys_addr_symbol+0x2c/0x70 [ 3111.650183][T16496] ? __check_object_size+0x171/0x437 [ 3111.655468][T16496] netlink_sendmsg+0x882/0xe10 [ 3111.660218][T16496] ? aa_af_perm+0x260/0x260 [ 3111.664706][T16496] ? netlink_unicast+0x740/0x740 [ 3111.669640][T16496] ? netlink_unicast+0x740/0x740 [ 3111.674560][T16496] sock_sendmsg+0xcf/0x120 [ 3111.678958][T16496] ____sys_sendmsg+0x6b9/0x7d0 [ 3111.683703][T16496] ? kernel_sendmsg+0x50/0x50 [ 3111.688361][T16496] ? finish_task_switch+0x119/0x750 [ 3111.693546][T16496] ? _raw_spin_unlock_irq+0x1f/0x80 [ 3111.698753][T16496] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3111.704029][T16496] ___sys_sendmsg+0x100/0x170 [ 3111.708719][T16496] ? sendmsg_copy_msghdr+0x70/0x70 [ 3111.713854][T16496] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3111.719308][T16496] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3111.724602][T16496] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3111.730290][T16496] ? preempt_schedule_irq+0xee/0x150 [ 3111.735596][T16496] ? retint_kernel+0x2b/0x2b [ 3111.740245][T16496] ? sockfd_lookup_light+0xd9/0x170 [ 3111.745437][T16496] ? sockfd_lookup_light+0x100/0x170 [ 3111.750730][T16496] __sys_sendmsg+0xec/0x1b0 [ 3111.755306][T16496] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3111.760366][T16496] ? do_syscall_64+0x4f/0x7d0 [ 3111.765032][T16496] do_syscall_64+0xf6/0x7d0 [ 3111.769527][T16496] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3111.775417][T16496] RIP: 0033:0x45c849 [ 3111.779301][T16496] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3111.800113][T16496] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3111.808508][T16496] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3111.816615][T16496] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3111.824576][T16496] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3111.832549][T16496] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3111.840543][T16496] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3111.865084][T16498] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3111.890236][T16498] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3111.890236][T16498] !' [ 3111.900215][T16498] CPU: 0 PID: 16498 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3111.908891][T16498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3111.918960][T16498] Call Trace: [ 3111.922248][T16498] dump_stack+0x188/0x20d [ 3111.926586][T16498] sysfs_warn_dup.cold+0x1c/0x2d [ 3111.931514][T16498] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3111.937571][T16498] sysfs_create_link+0x61/0xc0 [ 3111.942325][T16498] device_add+0x71c/0x1bc0 [ 3111.946734][T16498] ? uevent_show+0x360/0x360 [ 3111.951340][T16498] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3111.957337][T16498] wiphy_register+0x1c46/0x2720 [ 3111.962202][T16498] ? wiphy_unregister+0xf90/0xf90 [ 3111.967226][T16498] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3111.972949][T16498] ? retint_kernel+0x2b/0x2b [ 3111.977550][T16498] ? ieee80211_register_hw+0x2a57/0x36a0 [ 3111.983187][T16498] ieee80211_register_hw+0x13d4/0x36a0 [ 3111.988660][T16498] ? __debug_object_init+0x4a1/0xe20 [ 3111.993951][T16498] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3111.999417][T16498] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3112.004955][T16498] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3112.010929][T16498] ? memset+0x20/0x40 [ 3112.014922][T16498] ? __hrtimer_init+0x134/0x260 [ 3112.019782][T16498] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3112.025516][T16498] ? hwsim_register_received_nl+0x400/0x400 [ 3112.031418][T16498] hwsim_new_radio_nl+0x905/0xf60 [ 3112.036441][T16498] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3112.042321][T16498] ? cap_capable+0x1eb/0x250 [ 3112.046914][T16498] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3112.053223][T16498] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3112.059535][T16498] genl_rcv_msg+0x627/0xdf0 [ 3112.064024][T16498] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3112.070367][T16498] ? retint_kernel+0x2b/0x2b [ 3112.074954][T16498] netlink_rcv_skb+0x15a/0x410 [ 3112.079702][T16498] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3112.086014][T16498] ? netlink_ack+0xa80/0xa80 [ 3112.090600][T16498] genl_rcv+0x24/0x40 [ 3112.094564][T16498] netlink_unicast+0x537/0x740 [ 3112.099316][T16498] ? netlink_attachskb+0x810/0x810 [ 3112.104423][T16498] ? _copy_from_iter_full+0x25c/0x870 [ 3112.109786][T16498] ? __phys_addr_symbol+0x2c/0x70 [ 3112.114795][T16498] ? __check_object_size+0x171/0x437 [ 3112.120070][T16498] netlink_sendmsg+0x882/0xe10 [ 3112.124821][T16498] ? aa_af_perm+0x260/0x260 [ 3112.129310][T16498] ? netlink_unicast+0x740/0x740 [ 3112.134236][T16498] ? netlink_unicast+0x740/0x740 [ 3112.139160][T16498] sock_sendmsg+0xcf/0x120 [ 3112.143559][T16498] ____sys_sendmsg+0x6b9/0x7d0 [ 3112.148305][T16498] ? kernel_sendmsg+0x50/0x50 [ 3112.152968][T16498] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3112.158435][T16498] ___sys_sendmsg+0x100/0x170 [ 3112.163103][T16498] ? sendmsg_copy_msghdr+0x70/0x70 [ 3112.168212][T16498] ? __fget_files+0x329/0x4f0 [ 3112.172900][T16498] ? ksys_dup3+0x3c0/0x3c0 [ 3112.177312][T16498] ? lock_acquire+0x197/0x420 [ 3112.181972][T16498] ? __might_fault+0xef/0x1d0 [ 3112.186637][T16498] ? __fget_light+0x208/0x270 [ 3112.191301][T16498] __sys_sendmsg+0xec/0x1b0 [ 3112.195802][T16498] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3112.200808][T16498] ? __x64_sys_futex+0x380/0x4f0 [ 3112.205738][T16498] ? trace_hardirqs_off_caller+0x55/0x230 [ 3112.211457][T16498] ? do_syscall_64+0x21/0x7d0 [ 3112.216120][T16498] do_syscall_64+0xf6/0x7d0 [ 3112.220613][T16498] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3112.226486][T16498] RIP: 0033:0x45c849 [ 3112.230366][T16498] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3112.249950][T16498] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3112.258343][T16498] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3112.266296][T16498] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3112.274268][T16498] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3112.282496][T16498] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3112.290451][T16498] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3112.341023][T16497] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3112.371461][T16497] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3112.371461][T16497] !' [ 3112.393620][T16497] CPU: 0 PID: 16497 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3112.402525][T16497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3112.412583][T16497] Call Trace: [ 3112.415903][T16497] dump_stack+0x188/0x20d [ 3112.420237][T16497] sysfs_warn_dup.cold+0x1c/0x2d [ 3112.425161][T16497] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3112.431228][T16497] sysfs_create_link+0x61/0xc0 [ 3112.436033][T16497] device_add+0x71c/0x1bc0 [ 3112.440441][T16497] ? uevent_show+0x360/0x360 [ 3112.445023][T16497] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3112.451002][T16497] wiphy_register+0x1c46/0x2720 [ 3112.455884][T16497] ? wiphy_unregister+0xf90/0xf90 [ 3112.460903][T16497] ? __kmalloc+0x629/0x7a0 [ 3112.465316][T16497] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3112.470846][T16497] ieee80211_register_hw+0x13d4/0x36a0 [ 3112.476305][T16497] ? __debug_object_init+0x4a1/0xe20 [ 3112.481578][T16497] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3112.487035][T16497] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3112.492559][T16497] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3112.498519][T16497] ? memset+0x20/0x40 [ 3112.502484][T16497] ? __hrtimer_init+0x134/0x260 [ 3112.507319][T16497] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3112.513019][T16497] ? vprintk_func+0x81/0x17e [ 3112.517598][T16497] ? hwsim_register_received_nl+0x400/0x400 [ 3112.523473][T16497] hwsim_new_radio_nl+0x905/0xf60 [ 3112.528484][T16497] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3112.534487][T16497] ? cap_capable+0x1eb/0x250 [ 3112.539072][T16497] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3112.545392][T16497] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3112.551731][T16497] genl_rcv_msg+0x627/0xdf0 [ 3112.556231][T16497] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3112.562592][T16497] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3112.568094][T16497] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3112.573808][T16497] netlink_rcv_skb+0x15a/0x410 [ 3112.578596][T16497] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3112.584951][T16497] ? netlink_ack+0xa80/0xa80 [ 3112.589531][T16497] genl_rcv+0x24/0x40 [ 3112.593497][T16497] netlink_unicast+0x537/0x740 [ 3112.598244][T16497] ? netlink_attachskb+0x810/0x810 [ 3112.603352][T16497] ? _copy_from_iter_full+0x25c/0x870 [ 3112.608704][T16497] ? __phys_addr_symbol+0x2c/0x70 [ 3112.614065][T16497] ? __check_object_size+0x171/0x437 [ 3112.619335][T16497] netlink_sendmsg+0x882/0xe10 [ 3112.624105][T16497] ? netlink_unicast+0x740/0x740 [ 3112.629024][T16497] ? security_socket_sendmsg+0x45/0xb0 [ 3112.634462][T16497] ? netlink_unicast+0x740/0x740 [ 3112.639384][T16497] sock_sendmsg+0xcf/0x120 [ 3112.643785][T16497] ____sys_sendmsg+0x6b9/0x7d0 [ 3112.648530][T16497] ? kernel_sendmsg+0x50/0x50 [ 3112.653203][T16497] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3112.658660][T16497] ___sys_sendmsg+0x100/0x170 [ 3112.663337][T16497] ? retint_kernel+0x2b/0x2b [ 3112.667913][T16497] ? sendmsg_copy_msghdr+0x70/0x70 [ 3112.673025][T16497] ? __fget_files+0x329/0x4f0 [ 3112.677690][T16497] ? ksys_dup3+0x3c0/0x3c0 [ 3112.682091][T16497] ? lock_acquire+0x197/0x420 [ 3112.686758][T16497] ? __might_fault+0xef/0x1d0 [ 3112.691432][T16497] ? __fget_light+0x208/0x270 [ 3112.696108][T16497] __sys_sendmsg+0xec/0x1b0 [ 3112.700592][T16497] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3112.705597][T16497] ? __x64_sys_futex+0x380/0x4f0 [ 3112.710525][T16497] ? trace_hardirqs_off_caller+0x55/0x230 [ 3112.716233][T16497] ? do_syscall_64+0x21/0x7d0 [ 3112.720889][T16497] do_syscall_64+0xf6/0x7d0 [ 3112.725390][T16497] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3112.731264][T16497] RIP: 0033:0x45c849 [ 3112.735139][T16497] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3112.754731][T16497] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3112.763128][T16497] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3112.771086][T16497] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3112.779044][T16497] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3112.787002][T16497] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3112.795008][T16497] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:44:22 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x0, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:22 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:22 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e4800002400070cd21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:22 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc600e0011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3115.886489][T16511] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3115.900590][T16511] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3115.900590][T16511] !' [ 3115.913016][T16511] CPU: 1 PID: 16511 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3115.921704][T16511] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3115.931756][T16511] Call Trace: [ 3115.935048][T16511] dump_stack+0x188/0x20d [ 3115.939486][T16511] sysfs_warn_dup.cold+0x1c/0x2d [ 3115.944524][T16511] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3115.950591][T16511] sysfs_create_link+0x61/0xc0 [ 3115.955372][T16511] device_add+0x71c/0x1bc0 [ 3115.959788][T16511] ? uevent_show+0x360/0x360 [ 3115.964387][T16511] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3115.970374][T16511] wiphy_register+0x1c46/0x2720 [ 3115.975224][T16511] ? wiphy_unregister+0xf90/0xf90 [ 3115.980243][T16511] ? __kmalloc+0x629/0x7a0 [ 3115.984652][T16511] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3115.990205][T16511] ieee80211_register_hw+0x13d4/0x36a0 [ 3115.995680][T16511] ? __debug_object_init+0x4a1/0xe20 [ 3116.000988][T16511] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3116.006449][T16511] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3116.011998][T16511] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3116.017989][T16511] ? memset+0x20/0x40 [ 3116.021973][T16511] ? __hrtimer_init+0x134/0x260 [ 3116.026815][T16511] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3116.032531][T16511] ? vprintk_func+0x81/0x17e [ 3116.037146][T16511] ? hwsim_register_received_nl+0x400/0x400 [ 3116.043063][T16511] hwsim_new_radio_nl+0x905/0xf60 [ 3116.048087][T16511] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3116.053974][T16511] ? cap_capable+0x1eb/0x250 [ 3116.058554][T16511] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3116.064866][T16511] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3116.071194][T16511] genl_rcv_msg+0x627/0xdf0 [ 3116.075709][T16511] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3116.082061][T16511] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 3116.087863][T16511] netlink_rcv_skb+0x15a/0x410 [ 3116.092628][T16511] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3116.098950][T16511] ? netlink_ack+0xa80/0xa80 [ 3116.103551][T16511] genl_rcv+0x24/0x40 [ 3116.107532][T16511] netlink_unicast+0x537/0x740 [ 3116.112299][T16511] ? netlink_attachskb+0x810/0x810 [ 3116.117452][T16511] ? _copy_from_iter_full+0x25c/0x870 [ 3116.122809][T16511] ? __phys_addr_symbol+0x2c/0x70 [ 3116.127817][T16511] ? __check_object_size+0x171/0x437 [ 3116.133090][T16511] netlink_sendmsg+0x882/0xe10 [ 3116.137839][T16511] ? aa_af_perm+0x260/0x260 [ 3116.142327][T16511] ? netlink_unicast+0x740/0x740 [ 3116.147353][T16511] ? netlink_unicast+0x740/0x740 [ 3116.152286][T16511] sock_sendmsg+0xcf/0x120 [ 3116.156700][T16511] ____sys_sendmsg+0x6b9/0x7d0 [ 3116.161548][T16511] ? kernel_sendmsg+0x50/0x50 [ 3116.166220][T16511] ? mark_lock+0xbc/0x1220 [ 3116.170642][T16511] ___sys_sendmsg+0x100/0x170 [ 3116.175329][T16511] ? sendmsg_copy_msghdr+0x70/0x70 [ 3116.180446][T16511] ? __fget_files+0x329/0x4f0 [ 3116.185121][T16511] ? ksys_dup3+0x3c0/0x3c0 [ 3116.189528][T16511] ? lock_acquire+0x197/0x420 [ 3116.194204][T16511] ? __might_fault+0xef/0x1d0 [ 3116.198987][T16511] ? __fget_light+0x208/0x270 [ 3116.203670][T16511] __sys_sendmsg+0xec/0x1b0 [ 3116.208182][T16511] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3116.213255][T16511] ? __x64_sys_futex+0x380/0x4f0 [ 3116.218195][T16511] ? trace_hardirqs_off_caller+0x55/0x230 [ 3116.223916][T16511] ? do_syscall_64+0x21/0x7d0 [ 3116.228640][T16511] do_syscall_64+0xf6/0x7d0 [ 3116.233170][T16511] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3116.239065][T16511] RIP: 0033:0x45c849 [ 3116.242946][T16511] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3116.262541][T16511] RSP: 002b:00007fce66789c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3116.270952][T16511] RAX: ffffffffffffffda RBX: 00007fce6678a6d4 RCX: 000000000045c849 [ 3116.279021][T16511] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3116.287008][T16511] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3116.295142][T16511] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3116.303147][T16511] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac [ 3116.318215][T16513] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3116.335951][T16513] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3116.335951][T16513] !' [ 3116.354067][T16513] CPU: 0 PID: 16513 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3116.362744][T16513] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3116.372785][T16513] Call Trace: [ 3116.376106][T16513] dump_stack+0x188/0x20d [ 3116.381384][T16513] sysfs_warn_dup.cold+0x1c/0x2d [ 3116.386317][T16513] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3116.392377][T16513] sysfs_create_link+0x61/0xc0 [ 3116.397129][T16513] device_add+0x71c/0x1bc0 [ 3116.401531][T16513] ? uevent_show+0x360/0x360 [ 3116.406106][T16513] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3116.412081][T16513] wiphy_register+0x1c46/0x2720 [ 3116.416930][T16513] ? wiphy_unregister+0xf90/0xf90 [ 3116.421936][T16513] ? __kmalloc+0x629/0x7a0 [ 3116.426344][T16513] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3116.431879][T16513] ieee80211_register_hw+0x13d4/0x36a0 [ 3116.437379][T16513] ? __debug_object_init+0x4a1/0xe20 [ 3116.442711][T16513] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3116.448200][T16513] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3116.453867][T16513] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3116.459836][T16513] ? memset+0x20/0x40 [ 3116.463808][T16513] ? __hrtimer_init+0x134/0x260 [ 3116.468665][T16513] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3116.474494][T16513] ? vprintk_func+0x81/0x17e [ 3116.479247][T16513] ? hwsim_register_received_nl+0x400/0x400 [ 3116.485146][T16513] hwsim_new_radio_nl+0x905/0xf60 [ 3116.490170][T16513] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3116.496061][T16513] ? cap_capable+0x1eb/0x250 [ 3116.500661][T16513] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3116.506999][T16513] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3116.513396][T16513] genl_rcv_msg+0x627/0xdf0 [ 3116.517883][T16513] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3116.524214][T16513] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 3116.530039][T16513] netlink_rcv_skb+0x15a/0x410 [ 3116.534797][T16513] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3116.541125][T16513] ? netlink_ack+0xa80/0xa80 [ 3116.545710][T16513] genl_rcv+0x24/0x40 [ 3116.549702][T16513] netlink_unicast+0x537/0x740 [ 3116.554459][T16513] ? netlink_attachskb+0x810/0x810 [ 3116.559556][T16513] ? _copy_from_iter_full+0x25c/0x870 [ 3116.564917][T16513] ? __phys_addr_symbol+0x2c/0x70 [ 3116.569922][T16513] ? __check_object_size+0x171/0x437 [ 3116.575192][T16513] netlink_sendmsg+0x882/0xe10 [ 3116.579954][T16513] ? aa_af_perm+0x260/0x260 [ 3116.584572][T16513] ? netlink_unicast+0x740/0x740 [ 3116.589519][T16513] ? netlink_unicast+0x740/0x740 [ 3116.594452][T16513] sock_sendmsg+0xcf/0x120 [ 3116.598857][T16513] ____sys_sendmsg+0x6b9/0x7d0 [ 3116.603612][T16513] ? kernel_sendmsg+0x50/0x50 [ 3116.608279][T16513] ? mark_lock+0xbc/0x1220 [ 3116.612688][T16513] ___sys_sendmsg+0x100/0x170 [ 3116.617360][T16513] ? sendmsg_copy_msghdr+0x70/0x70 [ 3116.622480][T16513] ? __fget_files+0x329/0x4f0 [ 3116.627200][T16513] ? ksys_dup3+0x3c0/0x3c0 [ 3116.631634][T16513] ? lock_acquire+0x197/0x420 [ 3116.636308][T16513] ? __might_fault+0xef/0x1d0 [ 3116.641008][T16513] ? __fget_light+0x208/0x270 [ 3116.645703][T16513] __sys_sendmsg+0xec/0x1b0 [ 3116.650217][T16513] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3116.655265][T16513] ? __x64_sys_futex+0x380/0x4f0 [ 3116.660200][T16513] ? trace_hardirqs_off_caller+0x55/0x230 [ 3116.665910][T16513] ? do_syscall_64+0x21/0x7d0 [ 3116.670577][T16513] do_syscall_64+0xf6/0x7d0 [ 3116.675089][T16513] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3116.680978][T16513] RIP: 0033:0x45c849 [ 3116.684870][T16513] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3116.704457][T16513] RSP: 002b:00007f17ede4ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3116.712848][T16513] RAX: ffffffffffffffda RBX: 00007f17ede4b6d4 RCX: 000000000045c849 [ 3116.720803][T16513] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3116.728874][T16513] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3116.736844][T16513] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3116.744904][T16513] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac [ 3116.770240][T16508] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3116.782883][T16508] sysfs: cannot create duplicate filename '/class/ieee80211/ 23:44:23 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(0x0, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3116.782883][T16508] !' [ 3116.813796][T16508] CPU: 1 PID: 16508 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3116.822588][T16508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3116.832742][T16508] Call Trace: [ 3116.836043][T16508] dump_stack+0x188/0x20d [ 3116.840382][T16508] sysfs_warn_dup.cold+0x1c/0x2d [ 3116.845306][T16508] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3116.851358][T16508] sysfs_create_link+0x61/0xc0 [ 3116.856155][T16508] device_add+0x71c/0x1bc0 [ 3116.860556][T16508] ? uevent_show+0x360/0x360 [ 3116.865140][T16508] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3116.871125][T16508] wiphy_register+0x1c46/0x2720 [ 3116.875981][T16508] ? wiphy_unregister+0xf90/0xf90 [ 3116.881070][T16508] ? __kmalloc+0x629/0x7a0 [ 3116.885483][T16508] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3116.891019][T16508] ieee80211_register_hw+0x13d4/0x36a0 [ 3116.896466][T16508] ? __debug_object_init+0x4a1/0xe20 [ 3116.901752][T16508] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3116.907233][T16508] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3116.912769][T16508] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3116.918739][T16508] ? memset+0x20/0x40 [ 3116.922721][T16508] ? __hrtimer_init+0x134/0x260 [ 3116.927578][T16508] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3116.933292][T16508] ? vprintk_func+0x81/0x17e [ 3116.937889][T16508] ? hwsim_register_received_nl+0x400/0x400 [ 3116.943791][T16508] hwsim_new_radio_nl+0x905/0xf60 [ 3116.948855][T16508] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3116.954783][T16508] ? cap_capable+0x1eb/0x250 [ 3116.959378][T16508] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3116.959390][T16508] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3116.959408][T16508] genl_rcv_msg+0x627/0xdf0 [ 3116.959429][T16508] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3116.959443][T16508] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3116.959462][T16508] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3116.959494][T16508] netlink_rcv_skb+0x15a/0x410 [ 3116.959513][T16508] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3117.005272][T16508] ? netlink_ack+0xa80/0xa80 [ 3117.009867][T16508] genl_rcv+0x24/0x40 [ 3117.013846][T16508] netlink_unicast+0x537/0x740 [ 3117.018732][T16508] ? netlink_attachskb+0x810/0x810 [ 3117.023889][T16508] ? netlink_sendmsg+0x7f7/0xe10 [ 3117.028861][T16508] netlink_sendmsg+0x882/0xe10 [ 3117.033647][T16508] ? aa_af_perm+0x260/0x260 [ 3117.038164][T16508] ? netlink_unicast+0x740/0x740 [ 3117.043100][T16508] ? netlink_unicast+0x740/0x740 [ 3117.048030][T16508] sock_sendmsg+0xcf/0x120 [ 3117.052437][T16508] ____sys_sendmsg+0x6b9/0x7d0 [ 3117.057215][T16508] ? kernel_sendmsg+0x50/0x50 [ 3117.061882][T16508] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3117.067343][T16508] ___sys_sendmsg+0x100/0x170 [ 3117.072021][T16508] ? sendmsg_copy_msghdr+0x70/0x70 [ 3117.077193][T16508] ? __fget_files+0x329/0x4f0 [ 3117.081888][T16508] ? ksys_dup3+0x3c0/0x3c0 [ 3117.086302][T16508] ? lock_acquire+0x197/0x420 [ 3117.090977][T16508] ? __might_fault+0xef/0x1d0 [ 3117.095646][T16508] ? __fget_light+0x208/0x270 [ 3117.100356][T16508] __sys_sendmsg+0xec/0x1b0 [ 3117.104847][T16508] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3117.109885][T16508] ? trace_hardirqs_off_caller+0x55/0x230 [ 3117.115650][T16508] ? do_syscall_64+0x21/0x7d0 [ 3117.120330][T16508] do_syscall_64+0xf6/0x7d0 [ 3117.124864][T16508] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3117.130816][T16508] RIP: 0033:0x45c849 [ 3117.134694][T16508] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3117.154317][T16508] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3117.162775][T16508] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3117.171261][T16508] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3117.179243][T16508] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3117.187213][T16508] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3117.195183][T16508] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:44:24 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x0, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3117.211992][T16511] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3117.233522][T16511] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3117.233522][T16511] !' [ 3117.244034][T16511] CPU: 1 PID: 16511 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3117.252722][T16511] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3117.262817][T16511] Call Trace: [ 3117.266120][T16511] dump_stack+0x188/0x20d [ 3117.270482][T16511] sysfs_warn_dup.cold+0x1c/0x2d [ 3117.275455][T16511] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3117.281546][T16511] sysfs_create_link+0x61/0xc0 [ 3117.286325][T16511] device_add+0x71c/0x1bc0 [ 3117.290778][T16511] ? uevent_show+0x360/0x360 [ 3117.295388][T16511] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3117.301388][T16511] wiphy_register+0x1c46/0x2720 [ 3117.306283][T16511] ? wiphy_unregister+0xf90/0xf90 [ 3117.311334][T16511] ? __kmalloc+0x629/0x7a0 [ 3117.315781][T16511] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3117.321367][T16511] ieee80211_register_hw+0x13d4/0x36a0 [ 3117.326840][T16511] ? __debug_object_init+0x4a1/0xe20 [ 3117.332134][T16511] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3117.337613][T16511] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3117.343159][T16511] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3117.349137][T16511] ? memset+0x20/0x40 [ 3117.353110][T16511] ? __hrtimer_init+0x134/0x260 [ 3117.357950][T16511] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3117.363663][T16511] ? vprintk_func+0x81/0x17e [ 3117.368329][T16511] ? hwsim_register_received_nl+0x400/0x400 [ 3117.374927][T16511] hwsim_new_radio_nl+0x905/0xf60 [ 3117.379956][T16511] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3117.385844][T16511] ? cap_capable+0x1eb/0x250 [ 3117.390437][T16511] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3117.396758][T16511] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3117.403084][T16511] genl_rcv_msg+0x627/0xdf0 [ 3117.407654][T16511] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3117.413982][T16511] ? retint_kernel+0x2b/0x2b [ 3117.418563][T16511] netlink_rcv_skb+0x15a/0x410 [ 3117.423369][T16511] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3117.429699][T16511] ? netlink_ack+0xa80/0xa80 [ 3117.434293][T16511] genl_rcv+0x24/0x40 [ 3117.438310][T16511] netlink_unicast+0x537/0x740 [ 3117.443114][T16511] ? netlink_attachskb+0x810/0x810 [ 3117.448217][T16511] ? _copy_from_iter_full+0x25c/0x870 [ 3117.453627][T16511] ? __phys_addr_symbol+0x2c/0x70 [ 3117.458633][T16511] ? __check_object_size+0x171/0x437 [ 3117.463979][T16511] netlink_sendmsg+0x882/0xe10 [ 3117.475454][T16511] ? aa_af_perm+0x260/0x260 [ 3117.479964][T16511] ? netlink_unicast+0x740/0x740 [ 3117.484902][T16511] ? netlink_unicast+0x740/0x740 [ 3117.489852][T16511] sock_sendmsg+0xcf/0x120 [ 3117.494293][T16511] ____sys_sendmsg+0x6b9/0x7d0 [ 3117.499055][T16511] ? kernel_sendmsg+0x50/0x50 [ 3117.503777][T16511] ___sys_sendmsg+0x100/0x170 [ 3117.508459][T16511] ? sendmsg_copy_msghdr+0x70/0x70 [ 3117.513582][T16511] ? __fget_files+0x329/0x4f0 [ 3117.518286][T16511] ? ksys_dup3+0x3c0/0x3c0 [ 3117.522694][T16511] ? __fget_light+0x208/0x270 [ 3117.527360][T16511] __sys_sendmsg+0xec/0x1b0 [ 3117.531862][T16511] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3117.536886][T16511] ? __x64_sys_futex+0x380/0x4f0 [ 3117.541833][T16511] ? trace_hardirqs_off_caller+0x55/0x230 [ 3117.547673][T16511] ? do_syscall_64+0x21/0x7d0 [ 3117.552336][T16511] do_syscall_64+0xf6/0x7d0 [ 3117.556847][T16511] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3117.562731][T16511] RIP: 0033:0x45c849 [ 3117.566608][T16511] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3117.586194][T16511] RSP: 002b:00007fce66789c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3117.594597][T16511] RAX: ffffffffffffffda RBX: 00007fce6678a6d4 RCX: 000000000045c849 [ 3117.602567][T16511] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3117.610539][T16511] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3117.618504][T16511] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3117.626459][T16511] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac [ 3117.640694][T16515] netlink: 'syz-executor.5': attribute type 8 has an invalid length. [ 3117.649039][T16515] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.5'. 23:44:24 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60110011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3117.662419][T16515] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3117.662419][T16515] !' [ 3117.675027][T16515] CPU: 0 PID: 16515 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3117.683823][T16515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3117.693881][T16515] Call Trace: [ 3117.697175][T16515] dump_stack+0x188/0x20d [ 3117.701517][T16515] sysfs_warn_dup.cold+0x1c/0x2d [ 3117.706471][T16515] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3117.712554][T16515] sysfs_create_link+0x61/0xc0 [ 3117.717330][T16515] device_add+0x71c/0x1bc0 [ 3117.721760][T16515] ? uevent_show+0x360/0x360 [ 3117.726361][T16515] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3117.732351][T16515] wiphy_register+0x1c46/0x2720 [ 3117.737225][T16515] ? wiphy_unregister+0xf90/0xf90 [ 3117.742273][T16515] ? __kmalloc+0x629/0x7a0 [ 3117.746690][T16515] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3117.752238][T16515] ieee80211_register_hw+0x13d4/0x36a0 [ 3117.757687][T16515] ? __debug_object_init+0x4a1/0xe20 [ 3117.763011][T16515] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3117.768456][T16515] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3117.773984][T16515] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3117.779947][T16515] ? memset+0x20/0x40 [ 3117.783910][T16515] ? __hrtimer_init+0x134/0x260 [ 3117.788744][T16515] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3117.794445][T16515] ? vprintk_func+0x81/0x17e [ 3117.799034][T16515] ? hwsim_register_received_nl+0x400/0x400 [ 3117.804986][T16515] hwsim_new_radio_nl+0x905/0xf60 [ 3117.810028][T16515] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3117.815908][T16515] ? cap_capable+0x1eb/0x250 [ 3117.820489][T16515] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3117.826799][T16515] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3117.833113][T16515] genl_rcv_msg+0x627/0xdf0 [ 3117.837604][T16515] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3117.843937][T16515] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3117.849215][T16515] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3117.854725][T16515] netlink_rcv_skb+0x15a/0x410 [ 3117.859480][T16515] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3117.865883][T16515] ? netlink_ack+0xa80/0xa80 [ 3117.870472][T16515] genl_rcv+0x24/0x40 [ 3117.874461][T16515] netlink_unicast+0x537/0x740 [ 3117.879251][T16515] ? netlink_attachskb+0x810/0x810 [ 3117.884527][T16515] ? _copy_from_iter_full+0x25c/0x870 [ 3117.890113][T16515] ? __phys_addr_symbol+0x2c/0x70 [ 3117.895148][T16515] ? __check_object_size+0x171/0x437 [ 3117.900487][T16515] netlink_sendmsg+0x882/0xe10 [ 3117.905242][T16515] ? aa_af_perm+0x260/0x260 [ 3117.909743][T16515] ? netlink_unicast+0x740/0x740 [ 3117.914862][T16515] ? netlink_unicast+0x740/0x740 [ 3117.919802][T16515] sock_sendmsg+0xcf/0x120 [ 3117.924218][T16515] ____sys_sendmsg+0x6b9/0x7d0 [ 3117.929083][T16515] ? kernel_sendmsg+0x50/0x50 [ 3117.933760][T16515] ___sys_sendmsg+0x100/0x170 [ 3117.938455][T16515] ? rcu_preempt_deferred_qs_irqrestore+0x672/0xb60 [ 3117.945030][T16515] ? sendmsg_copy_msghdr+0x70/0x70 [ 3117.950140][T16515] ? __rcu_read_unlock+0x26c/0x700 [ 3117.955239][T16515] ? __fget_files+0x329/0x4f0 [ 3117.959922][T16515] ? ksys_dup3+0x3c0/0x3c0 [ 3117.964339][T16515] ? lock_acquire+0x197/0x420 [ 3117.969010][T16515] ? __might_fault+0xef/0x1d0 [ 3117.973672][T16515] ? __fget_light+0x208/0x270 [ 3117.978351][T16515] __sys_sendmsg+0xec/0x1b0 [ 3117.982843][T16515] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3117.987847][T16515] ? __x64_sys_futex+0x380/0x4f0 [ 3117.992774][T16515] ? trace_hardirqs_off_caller+0x55/0x230 [ 3117.998489][T16515] ? do_syscall_64+0x21/0x7d0 [ 3118.003168][T16515] do_syscall_64+0xf6/0x7d0 [ 3118.007673][T16515] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3118.013714][T16515] RIP: 0033:0x45c849 [ 3118.017601][T16515] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3118.038170][T16515] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3118.046567][T16515] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3118.054522][T16515] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3118.062488][T16515] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3118.070457][T16515] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3118.078420][T16515] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3118.093366][T16518] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3118.134094][T16518] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3118.134094][T16518] !' [ 3118.144097][T16518] CPU: 0 PID: 16518 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3118.152783][T16518] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3118.162840][T16518] Call Trace: [ 3118.166119][T16518] dump_stack+0x188/0x20d [ 3118.170443][T16518] sysfs_warn_dup.cold+0x1c/0x2d [ 3118.175369][T16518] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3118.181419][T16518] sysfs_create_link+0x61/0xc0 [ 3118.186169][T16518] device_add+0x71c/0x1bc0 [ 3118.190584][T16518] ? uevent_show+0x360/0x360 [ 3118.195184][T16518] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3118.201146][T16518] wiphy_register+0x1c46/0x2720 [ 3118.205998][T16518] ? wiphy_unregister+0xf90/0xf90 [ 3118.211016][T16518] ? __kmalloc+0x629/0x7a0 [ 3118.215426][T16518] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3118.221083][T16518] ieee80211_register_hw+0x13d4/0x36a0 [ 3118.226543][T16518] ? __debug_object_init+0x4a1/0xe20 [ 3118.231816][T16518] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3118.237286][T16518] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3118.242818][T16518] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3118.248783][T16518] ? memset+0x20/0x40 [ 3118.252748][T16518] ? __hrtimer_init+0x134/0x260 [ 3118.257607][T16518] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3118.263310][T16518] ? vprintk_func+0x81/0x17e [ 3118.267890][T16518] ? hwsim_register_received_nl+0x400/0x400 [ 3118.273799][T16518] hwsim_new_radio_nl+0x905/0xf60 [ 3118.278819][T16518] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3118.284708][T16518] ? cap_capable+0x1eb/0x250 [ 3118.289294][T16518] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3118.295622][T16518] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3118.301935][T16518] genl_rcv_msg+0x627/0xdf0 [ 3118.306423][T16518] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3118.312749][T16518] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3118.318561][T16518] netlink_rcv_skb+0x15a/0x410 [ 3118.323327][T16518] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3118.329645][T16518] ? netlink_ack+0xa80/0xa80 [ 3118.334238][T16518] genl_rcv+0x24/0x40 [ 3118.338226][T16518] netlink_unicast+0x537/0x740 [ 3118.342981][T16518] ? netlink_attachskb+0x810/0x810 [ 3118.348087][T16518] ? _copy_from_iter_full+0x25c/0x870 [ 3118.353442][T16518] ? __phys_addr_symbol+0x2c/0x70 [ 3118.358450][T16518] ? __check_object_size+0x171/0x437 [ 3118.363749][T16518] netlink_sendmsg+0x882/0xe10 [ 3118.368509][T16518] ? aa_af_perm+0x260/0x260 [ 3118.372998][T16518] ? netlink_unicast+0x740/0x740 [ 3118.377937][T16518] ? netlink_unicast+0x740/0x740 [ 3118.382865][T16518] sock_sendmsg+0xcf/0x120 [ 3118.387272][T16518] ____sys_sendmsg+0x6b9/0x7d0 [ 3118.392032][T16518] ? kernel_sendmsg+0x50/0x50 [ 3118.396700][T16518] ? mark_lock+0xbc/0x1220 [ 3118.401107][T16518] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3118.406599][T16518] ___sys_sendmsg+0x100/0x170 [ 3118.411263][T16518] ? sendmsg_copy_msghdr+0x70/0x70 [ 3118.416366][T16518] ? __fget_files+0x329/0x4f0 [ 3118.421027][T16518] ? ksys_dup3+0x3c0/0x3c0 [ 3118.425426][T16518] ? lock_acquire+0x197/0x420 [ 3118.430106][T16518] ? __might_fault+0xef/0x1d0 [ 3118.434781][T16518] ? __fget_light+0x208/0x270 [ 3118.439885][T16518] __sys_sendmsg+0xec/0x1b0 [ 3118.444374][T16518] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3118.449386][T16518] ? __x64_sys_futex+0x380/0x4f0 [ 3118.454333][T16518] ? trace_hardirqs_off_caller+0x55/0x230 [ 3118.460067][T16518] ? do_syscall_64+0x21/0x7d0 [ 3118.464778][T16518] do_syscall_64+0xf6/0x7d0 [ 3118.469280][T16518] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3118.475217][T16518] RIP: 0033:0x45c849 [ 3118.479107][T16518] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3118.498706][T16518] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3118.507114][T16518] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3118.515112][T16518] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3118.523085][T16518] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3118.531038][T16518] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3118.539005][T16518] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3118.563555][T16521] netlink: 18438 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3118.585640][T16521] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3118.585640][T16521] !' [ 3118.595864][T16521] CPU: 0 PID: 16521 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3118.604552][T16521] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3118.614615][T16521] Call Trace: [ 3118.617915][T16521] dump_stack+0x188/0x20d [ 3118.622542][T16521] sysfs_warn_dup.cold+0x1c/0x2d [ 3118.628418][T16521] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3118.634485][T16521] sysfs_create_link+0x61/0xc0 [ 3118.639281][T16521] device_add+0x71c/0x1bc0 [ 3118.643705][T16521] ? uevent_show+0x360/0x360 [ 3118.648278][T16521] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3118.654239][T16521] wiphy_register+0x1c46/0x2720 [ 3118.659074][T16521] ? wiphy_unregister+0xf90/0xf90 [ 3118.664083][T16521] ? __kmalloc+0x629/0x7a0 [ 3118.668479][T16521] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3118.674255][T16521] ieee80211_register_hw+0x13d4/0x36a0 [ 3118.679712][T16521] ? __debug_object_init+0x4a1/0xe20 [ 3118.684978][T16521] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3118.690423][T16521] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3118.695947][T16521] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3118.701920][T16521] ? memset+0x20/0x40 [ 3118.705885][T16521] ? __hrtimer_init+0x134/0x260 [ 3118.710732][T16521] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3118.716447][T16521] ? vprintk_func+0x81/0x17e [ 3118.721046][T16521] ? hwsim_register_received_nl+0x400/0x400 [ 3118.726950][T16521] hwsim_new_radio_nl+0x905/0xf60 [ 3118.732057][T16521] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3118.737935][T16521] ? cap_capable+0x1eb/0x250 [ 3118.742530][T16521] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3118.748854][T16521] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3118.755178][T16521] genl_rcv_msg+0x627/0xdf0 [ 3118.759857][T16521] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3118.766178][T16521] ? retint_kernel+0x2b/0x2b [ 3118.770761][T16521] netlink_rcv_skb+0x15a/0x410 [ 3118.775511][T16521] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3118.781863][T16521] ? netlink_ack+0xa80/0xa80 [ 3118.786442][T16521] genl_rcv+0x24/0x40 [ 3118.790409][T16521] netlink_unicast+0x537/0x740 [ 3118.795155][T16521] ? netlink_attachskb+0x810/0x810 [ 3118.800246][T16521] ? _copy_from_iter_full+0x25c/0x870 [ 3118.805611][T16521] ? __phys_addr_symbol+0x2c/0x70 [ 3118.810614][T16521] ? __check_object_size+0x171/0x437 [ 3118.815894][T16521] netlink_sendmsg+0x882/0xe10 [ 3118.820666][T16521] ? netlink_unicast+0x740/0x740 [ 3118.825585][T16521] ? netlink_unicast+0x740/0x740 [ 3118.830501][T16521] sock_sendmsg+0xcf/0x120 [ 3118.834894][T16521] ____sys_sendmsg+0x6b9/0x7d0 [ 3118.839636][T16521] ? kernel_sendmsg+0x50/0x50 [ 3118.844304][T16521] ? mark_lock+0xbc/0x1220 [ 3118.848699][T16521] ___sys_sendmsg+0x100/0x170 [ 3118.853373][T16521] ? sendmsg_copy_msghdr+0x70/0x70 [ 3118.858491][T16521] ? __fget_files+0x329/0x4f0 [ 3118.863160][T16521] ? ksys_dup3+0x3c0/0x3c0 [ 3118.867574][T16521] ? lock_acquire+0x197/0x420 [ 3118.872271][T16521] ? __might_fault+0xef/0x1d0 [ 3118.876939][T16521] ? __fget_light+0x208/0x270 [ 3118.881650][T16521] __sys_sendmsg+0xec/0x1b0 [ 3118.886174][T16521] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3118.891196][T16521] ? __x64_sys_futex+0x380/0x4f0 [ 3118.896120][T16521] ? trace_hardirqs_off_caller+0x55/0x230 [ 3118.901922][T16521] ? do_syscall_64+0x21/0x7d0 [ 3118.906595][T16521] do_syscall_64+0xf6/0x7d0 [ 3118.911095][T16521] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3118.916963][T16521] RIP: 0033:0x45c849 [ 3118.920846][T16521] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3118.940604][T16521] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3118.949002][T16521] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3118.956982][T16521] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3118.964939][T16521] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3118.973496][T16521] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3118.981450][T16521] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:44:38 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024480705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:38 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x0, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:38 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x0, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3130.975442][T16534] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3131.000859][T16534] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3131.000859][T16534] !' [ 3131.011376][T16534] CPU: 1 PID: 16534 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3131.020055][T16534] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3131.030104][T16534] Call Trace: [ 3131.033403][T16534] dump_stack+0x188/0x20d [ 3131.037793][T16534] sysfs_warn_dup.cold+0x1c/0x2d [ 3131.042722][T16534] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3131.048837][T16534] sysfs_create_link+0x61/0xc0 [ 3131.053604][T16534] device_add+0x71c/0x1bc0 [ 3131.058037][T16534] ? ieee80211_set_bitrate_flags+0x116/0x5c0 [ 3131.064018][T16534] ? uevent_show+0x360/0x360 [ 3131.068643][T16534] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 23:44:38 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x0, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:38 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60120011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3131.074630][T16534] wiphy_register+0x1c46/0x2720 [ 3131.079514][T16534] ? wiphy_unregister+0xf90/0xf90 [ 3131.084539][T16534] ? retint_kernel+0x2b/0x2b [ 3131.089148][T16534] ? ieee80211_register_hw+0x1375/0x36a0 [ 3131.094795][T16534] ieee80211_register_hw+0x13d4/0x36a0 [ 3131.100268][T16534] ? __debug_object_init+0x4a1/0xe20 [ 3131.105575][T16534] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3131.111051][T16534] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3131.116607][T16534] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3131.122599][T16534] ? memset+0x20/0x40 [ 3131.126594][T16534] ? __hrtimer_init+0x134/0x260 [ 3131.131467][T16534] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3131.137265][T16534] ? hwsim_register_received_nl+0x400/0x400 [ 3131.143204][T16534] ? vprintk_func+0x81/0x17e [ 3131.147785][T16534] hwsim_new_radio_nl+0x905/0xf60 [ 3131.152811][T16534] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3131.158271][T16534] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3131.164177][T16534] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3131.169921][T16534] genl_rcv_msg+0x627/0xdf0 [ 3131.174427][T16534] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3131.181715][T16534] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3131.186998][T16534] ? mark_held_locks+0x9f/0xe0 [ 3131.191767][T16534] netlink_rcv_skb+0x15a/0x410 [ 3131.196541][T16534] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3131.202864][T16534] ? netlink_ack+0xa80/0xa80 [ 3131.207445][T16534] ? retint_kernel+0x2b/0x2b [ 3131.212050][T16534] ? down_read+0x110/0x420 [ 3131.216460][T16534] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3131.222815][T16534] genl_rcv+0x24/0x40 [ 3131.226799][T16534] netlink_unicast+0x537/0x740 [ 3131.231574][T16534] ? netlink_attachskb+0x810/0x810 [ 3131.236689][T16534] netlink_sendmsg+0x882/0xe10 [ 3131.241474][T16534] ? netlink_unicast+0x740/0x740 [ 3131.246415][T16534] ? security_socket_sendmsg+0x45/0xb0 [ 3131.251876][T16534] ? netlink_unicast+0x740/0x740 [ 3131.256813][T16534] sock_sendmsg+0xcf/0x120 [ 3131.261228][T16534] ____sys_sendmsg+0x6b9/0x7d0 [ 3131.265989][T16534] ? kernel_sendmsg+0x50/0x50 [ 3131.270682][T16534] ___sys_sendmsg+0x100/0x170 [ 3131.275357][T16534] ? sendmsg_copy_msghdr+0x70/0x70 [ 3131.280485][T16534] ? __fget_files+0x329/0x4f0 [ 3131.285160][T16534] ? ksys_dup3+0x3c0/0x3c0 [ 3131.289569][T16534] ? lock_acquire+0x197/0x420 [ 3131.294256][T16534] ? __might_fault+0xef/0x1d0 [ 3131.298927][T16534] ? __fget_light+0x208/0x270 [ 3131.303593][T16534] __sys_sendmsg+0xec/0x1b0 [ 3131.308102][T16534] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3131.313192][T16534] ? do_syscall_64+0xbc/0x7d0 [ 3131.317864][T16534] ? __x64_sys_sendmsg+0x1/0xb0 [ 3131.322710][T16534] do_syscall_64+0xf6/0x7d0 [ 3131.327224][T16534] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3131.333110][T16534] RIP: 0033:0x45c849 [ 3131.336989][T16534] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3131.356580][T16534] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3131.364978][T16534] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3131.372938][T16534] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3131.380903][T16534] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3131.388916][T16534] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3131.396887][T16534] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3131.417443][T16533] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3131.438943][T16533] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3131.438943][T16533] !' [ 3131.450042][T16533] CPU: 0 PID: 16533 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3131.458735][T16533] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3131.468805][T16533] Call Trace: [ 3131.472109][T16533] dump_stack+0x188/0x20d [ 3131.476464][T16533] sysfs_warn_dup.cold+0x1c/0x2d [ 3131.481507][T16533] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3131.487679][T16533] sysfs_create_link+0x61/0xc0 [ 3131.492607][T16533] device_add+0x71c/0x1bc0 [ 3131.497018][T16533] ? uevent_show+0x360/0x360 [ 3131.503588][T16533] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3131.510249][T16533] wiphy_register+0x1c46/0x2720 [ 3131.515090][T16533] ? wiphy_unregister+0xf90/0xf90 [ 3131.520106][T16533] ? __kmalloc+0x18d/0x7a0 [ 3131.524512][T16533] ieee80211_register_hw+0x13d4/0x36a0 [ 3131.530912][T16533] ? __debug_object_init+0x4a1/0xe20 [ 3131.536185][T16533] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3131.541629][T16533] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3131.547171][T16533] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3131.553135][T16533] ? memset+0x20/0x40 [ 3131.557236][T16533] ? __hrtimer_init+0x134/0x260 [ 3131.562211][T16533] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3131.567957][T16533] ? hwsim_register_received_nl+0x400/0x400 [ 3131.573866][T16533] hwsim_new_radio_nl+0x905/0xf60 [ 3131.578890][T16533] ? lockdep_hardirqs_on+0x385/0x5d0 [ 3131.584183][T16533] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3131.590102][T16533] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3131.596537][T16533] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3131.602890][T16533] genl_rcv_msg+0x627/0xdf0 [ 3131.607400][T16533] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3131.613738][T16533] ? retint_kernel+0x2b/0x2b [ 3131.618354][T16533] netlink_rcv_skb+0x15a/0x410 [ 3131.623131][T16533] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3131.629460][T16533] ? netlink_ack+0xa80/0xa80 [ 3131.634176][T16533] genl_rcv+0x24/0x40 [ 3131.638162][T16533] netlink_unicast+0x537/0x740 [ 3131.642948][T16533] ? netlink_attachskb+0x810/0x810 [ 3131.648065][T16533] ? _copy_from_iter_full+0x25c/0x870 [ 3131.653474][T16533] ? __phys_addr_symbol+0x2c/0x70 [ 3131.658632][T16533] ? __check_object_size+0x171/0x437 [ 3131.663929][T16533] netlink_sendmsg+0x882/0xe10 [ 3131.668701][T16533] ? aa_af_perm+0x260/0x260 [ 3131.673197][T16533] ? netlink_unicast+0x740/0x740 [ 3131.678137][T16533] ? netlink_unicast+0x740/0x740 [ 3131.683072][T16533] sock_sendmsg+0xcf/0x120 [ 3131.687498][T16533] ____sys_sendmsg+0x6b9/0x7d0 [ 3131.692266][T16533] ? kernel_sendmsg+0x50/0x50 [ 3131.696934][T16533] ? mark_lock+0xbc/0x1220 [ 3131.701350][T16533] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3131.706932][T16533] ___sys_sendmsg+0x100/0x170 [ 3131.711615][T16533] ? sendmsg_copy_msghdr+0x70/0x70 [ 3131.716846][T16533] ? __fget_files+0x329/0x4f0 [ 3131.722240][T16533] ? ksys_dup3+0x3c0/0x3c0 [ 3131.726665][T16533] ? lock_acquire+0x209/0x420 [ 3131.731349][T16533] ? __fget_light+0x208/0x270 [ 3131.736031][T16533] __sys_sendmsg+0xec/0x1b0 [ 3131.740539][T16533] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3131.745566][T16533] ? __x64_sys_futex+0x380/0x4f0 [ 3131.750502][T16533] ? trace_hardirqs_off_caller+0x55/0x230 [ 3131.756225][T16533] ? do_syscall_64+0x21/0x7d0 [ 3131.760906][T16533] do_syscall_64+0xf6/0x7d0 [ 3131.765417][T16533] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3131.771302][T16533] RIP: 0033:0x45c849 [ 3131.775198][T16533] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3131.794808][T16533] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3131.803213][T16533] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3131.811180][T16533] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3131.819145][T16533] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3131.827121][T16533] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3131.835085][T16533] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3131.883113][T16536] netlink: 18438 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3131.915146][T16536] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3131.915146][T16536] !' [ 3131.925439][T16536] CPU: 0 PID: 16536 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3131.934226][T16536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3131.944270][T16536] Call Trace: [ 3131.947551][T16536] dump_stack+0x188/0x20d [ 3131.951873][T16536] sysfs_warn_dup.cold+0x1c/0x2d [ 3131.956800][T16536] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3131.962866][T16536] sysfs_create_link+0x61/0xc0 [ 3131.967614][T16536] device_add+0x71c/0x1bc0 [ 3131.972019][T16536] ? retint_kernel+0x2b/0x2b [ 3131.976593][T16536] ? uevent_show+0x360/0x360 [ 3131.981170][T16536] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3131.987137][T16536] wiphy_register+0x1c46/0x2720 [ 3131.991978][T16536] ? wiphy_unregister+0xf90/0xf90 [ 3131.996988][T16536] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3132.002691][T16536] ? retint_kernel+0x2b/0x2b [ 3132.007351][T16536] ? ieee80211_register_hw+0x1076/0x36a0 [ 3132.012990][T16536] ieee80211_register_hw+0x13d4/0x36a0 [ 3132.018460][T16536] ? calibrate_delay.cold+0x3db/0x3f6 [ 3132.023836][T16536] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3132.029307][T16536] ? retint_kernel+0x2b/0x2b [ 3132.033903][T16536] ? __hrtimer_init+0x134/0x260 [ 3132.038743][T16536] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3132.044470][T16536] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3132.049749][T16536] ? hwsim_register_received_nl+0x400/0x400 [ 3132.055732][T16536] hwsim_new_radio_nl+0x905/0xf60 [ 3132.060762][T16536] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3132.066650][T16536] ? cap_capable+0x1eb/0x250 [ 3132.071406][T16536] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3132.077815][T16536] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3132.084256][T16536] genl_rcv_msg+0x627/0xdf0 [ 3132.088752][T16536] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3132.095082][T16536] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3132.100803][T16536] ? retint_kernel+0x2b/0x2b [ 3132.105387][T16536] ? check_memory_region+0xfa/0x190 [ 3132.110576][T16536] netlink_rcv_skb+0x15a/0x410 [ 3132.115325][T16536] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3132.121655][T16536] ? netlink_ack+0xa80/0xa80 [ 3132.126239][T16536] genl_rcv+0x24/0x40 [ 3132.130209][T16536] netlink_unicast+0x537/0x740 [ 3132.134981][T16536] ? netlink_attachskb+0x810/0x810 [ 3132.140079][T16536] ? _copy_from_iter_full+0x25c/0x870 [ 3132.145472][T16536] ? __phys_addr_symbol+0x2c/0x70 [ 3132.150494][T16536] ? __check_object_size+0x171/0x437 [ 3132.155963][T16536] netlink_sendmsg+0x882/0xe10 [ 3132.160728][T16536] ? aa_af_perm+0x260/0x260 [ 3132.165239][T16536] ? netlink_unicast+0x740/0x740 [ 3132.170173][T16536] ? netlink_unicast+0x740/0x740 [ 3132.175104][T16536] sock_sendmsg+0xcf/0x120 [ 3132.179525][T16536] ____sys_sendmsg+0x6b9/0x7d0 [ 3132.184308][T16536] ? kernel_sendmsg+0x50/0x50 [ 3132.188977][T16536] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3132.194429][T16536] ___sys_sendmsg+0x100/0x170 [ 3132.202306][T16536] ? retint_kernel+0x2b/0x2b [ 3132.206884][T16536] ? sendmsg_copy_msghdr+0x70/0x70 [ 3132.211992][T16536] ? __fget_files+0x329/0x4f0 [ 3132.216664][T16536] ? ksys_dup3+0x3c0/0x3c0 [ 3132.221062][T16536] ? finish_task_switch+0x119/0x750 [ 3132.226247][T16536] ? _raw_spin_unlock_irq+0x1f/0x80 [ 3132.231429][T16536] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3132.236702][T16536] ? __fget_light+0x208/0x270 [ 3132.241369][T16536] __sys_sendmsg+0xec/0x1b0 [ 3132.246096][T16536] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3132.251116][T16536] ? trace_hardirqs_off_caller+0x55/0x230 [ 3132.256993][T16536] ? do_syscall_64+0x21/0x7d0 [ 3132.261671][T16536] do_syscall_64+0xf6/0x7d0 [ 3132.266182][T16536] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3132.272856][T16536] RIP: 0033:0x45c849 [ 3132.277793][T16536] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3132.297396][T16536] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3132.305821][T16536] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3132.313781][T16536] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3132.321748][T16536] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3132.329718][T16536] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3132.337685][T16536] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:44:46 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x0, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:46 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, 0x0, 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:46 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024007105d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:46 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60280011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3139.869597][T16551] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3139.883370][T16551] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3139.883370][T16551] !' [ 3139.898356][T16551] CPU: 0 PID: 16551 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3139.907040][T16551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3139.917081][T16551] Call Trace: [ 3139.920369][T16551] dump_stack+0x188/0x20d [ 3139.924691][T16551] sysfs_warn_dup.cold+0x1c/0x2d [ 3139.929670][T16551] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3139.935742][T16551] sysfs_create_link+0x61/0xc0 [ 3139.940505][T16551] device_add+0x71c/0x1bc0 [ 3139.944961][T16551] ? uevent_show+0x360/0x360 [ 3139.949626][T16551] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3139.955717][T16551] wiphy_register+0x1c46/0x2720 [ 3139.960571][T16551] ? wiphy_unregister+0xf90/0xf90 [ 3139.965593][T16551] ? __kmalloc+0x629/0x7a0 [ 3139.970021][T16551] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3139.975597][T16551] ieee80211_register_hw+0x13d4/0x36a0 [ 3139.981075][T16551] ? __debug_object_init+0x4a1/0xe20 [ 3139.986386][T16551] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3139.991853][T16551] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3139.997394][T16551] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3140.003383][T16551] ? memset+0x20/0x40 [ 3140.007358][T16551] ? __hrtimer_init+0x134/0x260 [ 3140.012238][T16551] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3140.017965][T16551] ? vprintk_func+0x81/0x17e [ 3140.022585][T16551] ? hwsim_register_received_nl+0x400/0x400 [ 3140.028489][T16551] hwsim_new_radio_nl+0x905/0xf60 [ 3140.033510][T16551] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3140.039389][T16551] ? cap_capable+0x1eb/0x250 [ 3140.043966][T16551] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3140.050334][T16551] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3140.056657][T16551] genl_rcv_msg+0x627/0xdf0 [ 3140.061167][T16551] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3140.067493][T16551] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 3140.073302][T16551] netlink_rcv_skb+0x15a/0x410 [ 3140.078062][T16551] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3140.084370][T16551] ? netlink_ack+0xa80/0xa80 [ 3140.088949][T16551] genl_rcv+0x24/0x40 [ 3140.092911][T16551] netlink_unicast+0x537/0x740 [ 3140.097669][T16551] ? netlink_attachskb+0x810/0x810 [ 3140.102773][T16551] ? _copy_from_iter_full+0x25c/0x870 [ 3140.108139][T16551] ? __phys_addr_symbol+0x2c/0x70 [ 3140.113156][T16551] ? __check_object_size+0x171/0x437 [ 3140.118423][T16551] netlink_sendmsg+0x882/0xe10 [ 3140.123170][T16551] ? aa_af_perm+0x260/0x260 [ 3140.127654][T16551] ? netlink_unicast+0x740/0x740 [ 3140.132578][T16551] ? netlink_unicast+0x740/0x740 [ 3140.137496][T16551] sock_sendmsg+0xcf/0x120 [ 3140.141891][T16551] ____sys_sendmsg+0x6b9/0x7d0 [ 3140.146638][T16551] ? kernel_sendmsg+0x50/0x50 [ 3140.151307][T16551] ? mark_lock+0xbc/0x1220 [ 3140.155739][T16551] ___sys_sendmsg+0x100/0x170 [ 3140.160410][T16551] ? sendmsg_copy_msghdr+0x70/0x70 [ 3140.165522][T16551] ? __fget_files+0x329/0x4f0 [ 3140.170182][T16551] ? ksys_dup3+0x3c0/0x3c0 [ 3140.174581][T16551] ? lock_acquire+0x197/0x420 [ 3140.179248][T16551] ? __might_fault+0xef/0x1d0 [ 3140.183979][T16551] ? __fget_light+0x208/0x270 [ 3140.188738][T16551] __sys_sendmsg+0xec/0x1b0 [ 3140.193350][T16551] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3140.198361][T16551] ? __x64_sys_futex+0x380/0x4f0 [ 3140.203306][T16551] ? trace_hardirqs_off_caller+0x55/0x230 [ 3140.209060][T16551] ? do_syscall_64+0x21/0x7d0 [ 3140.213735][T16551] do_syscall_64+0xf6/0x7d0 [ 3140.218226][T16551] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3140.224098][T16551] RIP: 0033:0x45c849 [ 3140.227985][T16551] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3140.247591][T16551] RSP: 002b:00007f17ede4ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3140.255987][T16551] RAX: ffffffffffffffda RBX: 00007f17ede4b6d4 RCX: 000000000045c849 [ 3140.263943][T16551] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3140.271903][T16551] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3140.279870][T16551] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3140.287823][T16551] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac [ 3140.307053][T16549] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3140.345345][T16549] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3140.345345][T16549] !' [ 3140.355462][T16549] CPU: 1 PID: 16549 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3140.364145][T16549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3140.374210][T16549] Call Trace: [ 3140.377520][T16549] dump_stack+0x188/0x20d [ 3140.381871][T16549] sysfs_warn_dup.cold+0x1c/0x2d [ 3140.386821][T16549] sysfs_do_create_link_sd.isra.0+0x119/0x130 23:44:47 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60120011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3140.392901][T16549] sysfs_create_link+0x61/0xc0 [ 3140.397787][T16549] device_add+0x71c/0x1bc0 [ 3140.402223][T16549] ? uevent_show+0x360/0x360 [ 3140.406828][T16549] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3140.412824][T16549] wiphy_register+0x1c46/0x2720 [ 3140.417700][T16549] ? wiphy_unregister+0xf90/0xf90 [ 3140.422731][T16549] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3140.428463][T16549] ? retint_kernel+0x2b/0x2b [ 3140.433080][T16549] ? ieee80211_register_hw+0xc7c/0x36a0 [ 3140.438639][T16549] ieee80211_register_hw+0x13d4/0x36a0 [ 3140.444103][T16549] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3140.449561][T16549] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3140.455102][T16549] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3140.461084][T16549] ? memset+0x20/0x40 [ 3140.465062][T16549] ? __hrtimer_init+0x134/0x260 [ 3140.469914][T16549] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3140.475683][T16549] ? vprintk_func+0x81/0x17e [ 3140.480285][T16549] ? hwsim_register_received_nl+0x400/0x400 [ 3140.486235][T16549] hwsim_new_radio_nl+0x905/0xf60 [ 3140.491256][T16549] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3140.496721][T16549] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3140.502615][T16549] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3140.508374][T16549] genl_rcv_msg+0x627/0xdf0 [ 3140.512889][T16549] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3140.519210][T16549] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3140.524513][T16549] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3140.529993][T16549] netlink_rcv_skb+0x15a/0x410 [ 3140.534754][T16549] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3140.541089][T16549] ? netlink_ack+0xa80/0xa80 [ 3140.545680][T16549] genl_rcv+0x24/0x40 [ 3140.549651][T16549] netlink_unicast+0x537/0x740 [ 3140.554411][T16549] ? netlink_attachskb+0x810/0x810 [ 3140.559511][T16549] ? _copy_from_iter_full+0x25c/0x870 [ 3140.564875][T16549] ? __phys_addr_symbol+0x2c/0x70 [ 3140.569891][T16549] ? __check_object_size+0x171/0x437 [ 3140.575190][T16549] netlink_sendmsg+0x882/0xe10 [ 3140.579965][T16549] ? aa_af_perm+0x260/0x260 [ 3140.584464][T16549] ? netlink_unicast+0x740/0x740 [ 3140.589407][T16549] ? netlink_unicast+0x740/0x740 [ 3140.594351][T16549] sock_sendmsg+0xcf/0x120 [ 3140.598749][T16549] ____sys_sendmsg+0x6b9/0x7d0 [ 3140.603499][T16549] ? kernel_sendmsg+0x50/0x50 [ 3140.608160][T16549] ? rcu_lockdep_current_cpu_online+0x2f/0x130 [ 3140.614298][T16549] ___sys_sendmsg+0x100/0x170 [ 3140.618970][T16549] ? sendmsg_copy_msghdr+0x70/0x70 [ 3140.624097][T16549] ? __fget_files+0x329/0x4f0 [ 3140.628766][T16549] ? ksys_dup3+0x3c0/0x3c0 [ 3140.633167][T16549] ? lock_acquire+0x197/0x420 [ 3140.637831][T16549] ? __might_fault+0xef/0x1d0 [ 3140.642498][T16549] ? __fget_light+0x208/0x270 [ 3140.647165][T16549] __sys_sendmsg+0xec/0x1b0 [ 3140.651668][T16549] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3140.656674][T16549] ? __x64_sys_futex+0x380/0x4f0 [ 3140.661604][T16549] ? trace_hardirqs_off_caller+0x55/0x230 [ 3140.667328][T16549] ? do_syscall_64+0x21/0x7d0 [ 3140.671991][T16549] do_syscall_64+0xf6/0x7d0 [ 3140.676490][T16549] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3140.682374][T16549] RIP: 0033:0x45c849 [ 3140.686266][T16549] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3140.705859][T16549] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3140.714256][T16549] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3140.722211][T16549] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3140.730170][T16549] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3140.738149][T16549] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff 23:44:47 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, 0x0, 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3140.746114][T16549] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3140.775140][T16550] netlink: 18418 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3140.806391][T16550] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3140.806391][T16550] !' [ 3140.851309][T16550] CPU: 1 PID: 16550 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3140.860045][T16550] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3140.870121][T16550] Call Trace: [ 3140.873410][T16550] dump_stack+0x188/0x20d [ 3140.877743][T16550] sysfs_warn_dup.cold+0x1c/0x2d [ 3140.882696][T16550] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3140.888761][T16550] sysfs_create_link+0x61/0xc0 [ 3140.893572][T16550] device_add+0x71c/0x1bc0 [ 3140.897977][T16550] ? uevent_show+0x360/0x360 [ 3140.902564][T16550] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3140.908538][T16550] wiphy_register+0x1c46/0x2720 [ 3140.913386][T16550] ? wiphy_unregister+0xf90/0xf90 [ 3140.918396][T16550] ? __kmalloc+0x629/0x7a0 [ 3140.922815][T16550] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3140.928377][T16550] ieee80211_register_hw+0x13d4/0x36a0 [ 3140.933830][T16550] ? __debug_object_init+0x4a1/0xe20 [ 3140.939119][T16550] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3140.944579][T16550] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3140.950131][T16550] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3140.956129][T16550] ? memset+0x20/0x40 [ 3140.960118][T16550] ? __hrtimer_init+0x134/0x260 [ 3140.964969][T16550] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3140.970675][T16550] ? vprintk_func+0x81/0x17e [ 3140.975295][T16550] ? hwsim_register_received_nl+0x400/0x400 [ 3140.981210][T16550] hwsim_new_radio_nl+0x905/0xf60 [ 3140.986232][T16550] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3140.992121][T16550] ? cap_capable+0x1eb/0x250 [ 3140.996712][T16550] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3141.003041][T16550] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3141.009537][T16550] genl_rcv_msg+0x627/0xdf0 [ 3141.014042][T16550] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3141.020365][T16550] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3141.025840][T16550] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3141.031563][T16550] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3141.037908][T16550] netlink_rcv_skb+0x15a/0x410 [ 3141.042683][T16550] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3141.049010][T16550] ? netlink_ack+0xa80/0xa80 [ 3141.053598][T16550] genl_rcv+0x24/0x40 [ 3141.057567][T16550] netlink_unicast+0x537/0x740 [ 3141.062339][T16550] ? netlink_attachskb+0x810/0x810 [ 3141.067448][T16550] ? security_netlink_send+0x13/0xa0 [ 3141.072721][T16550] ? security_netlink_send+0x1a/0xa0 [ 3141.078001][T16550] netlink_sendmsg+0x882/0xe10 [ 3141.082771][T16550] ? aa_af_perm+0x260/0x260 [ 3141.087292][T16550] ? netlink_unicast+0x740/0x740 [ 3141.092218][T16550] ? netlink_unicast+0x740/0x740 [ 3141.097140][T16550] sock_sendmsg+0xcf/0x120 [ 3141.101554][T16550] ____sys_sendmsg+0x6b9/0x7d0 [ 3141.106338][T16550] ? kernel_sendmsg+0x50/0x50 [ 3141.111025][T16550] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3141.116499][T16550] ___sys_sendmsg+0x100/0x170 [ 3141.121185][T16550] ? retint_kernel+0x2b/0x2b [ 3141.125776][T16550] ? sendmsg_copy_msghdr+0x70/0x70 [ 3141.130959][T16550] ? __fget_files+0x2d2/0x4f0 [ 3141.135646][T16550] ? __fget_files+0x329/0x4f0 [ 3141.140338][T16550] ? ksys_dup3+0x3c0/0x3c0 [ 3141.144759][T16550] ? lock_acquire+0x209/0x420 [ 3141.149448][T16550] ? __fget_light+0x208/0x270 [ 3141.154177][T16550] __sys_sendmsg+0xec/0x1b0 [ 3141.158689][T16550] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3141.163724][T16550] ? __x64_sys_futex+0x380/0x4f0 [ 3141.168668][T16550] ? trace_hardirqs_off_caller+0x55/0x230 [ 3141.174385][T16550] ? do_syscall_64+0x21/0x7d0 [ 3141.179052][T16550] do_syscall_64+0xf6/0x7d0 [ 3141.183562][T16550] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3141.189454][T16550] RIP: 0033:0x45c849 [ 3141.193349][T16550] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3141.212941][T16550] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3141.221460][T16550] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3141.229432][T16550] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3141.237393][T16550] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3141.245403][T16550] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff 23:44:48 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc602f0011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3141.253360][T16550] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3141.268218][T16553] netlink: 18438 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3141.297267][T16553] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3141.297267][T16553] !' [ 3141.309226][T16553] CPU: 0 PID: 16553 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3141.317933][T16553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3141.327990][T16553] Call Trace: [ 3141.331295][T16553] dump_stack+0x188/0x20d [ 3141.335634][T16553] sysfs_warn_dup.cold+0x1c/0x2d [ 3141.340586][T16553] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3141.346746][T16553] sysfs_create_link+0x61/0xc0 [ 3141.351527][T16553] device_add+0x71c/0x1bc0 [ 3141.355972][T16553] ? uevent_show+0x360/0x360 [ 3141.360564][T16553] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3141.366546][T16553] wiphy_register+0x1c46/0x2720 [ 3141.371388][T16553] ? wiphy_unregister+0xf90/0xf90 [ 3141.376412][T16553] ? __kmalloc+0x629/0x7a0 [ 3141.380832][T16553] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3141.386452][T16553] ieee80211_register_hw+0x13d4/0x36a0 [ 3141.391896][T16553] ? __debug_object_init+0x4a1/0xe20 [ 3141.397166][T16553] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3141.402606][T16553] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3141.408129][T16553] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3141.414088][T16553] ? memset+0x20/0x40 [ 3141.418071][T16553] ? __hrtimer_init+0x134/0x260 [ 3141.422956][T16553] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3141.428670][T16553] ? vprintk_func+0x81/0x17e [ 3141.433372][T16553] ? hwsim_register_received_nl+0x400/0x400 [ 3141.439331][T16553] hwsim_new_radio_nl+0x905/0xf60 [ 3141.444350][T16553] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3141.450229][T16553] ? cap_capable+0x1eb/0x250 [ 3141.454819][T16553] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3141.461184][T16553] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3141.467495][T16553] genl_rcv_msg+0x627/0xdf0 [ 3141.471999][T16553] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3141.478320][T16553] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3141.483596][T16553] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3141.489107][T16553] netlink_rcv_skb+0x15a/0x410 [ 3141.493861][T16553] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3141.500174][T16553] ? netlink_ack+0xa80/0xa80 [ 3141.504754][T16553] genl_rcv+0x24/0x40 [ 3141.508821][T16553] netlink_unicast+0x537/0x740 [ 3141.513578][T16553] ? netlink_attachskb+0x810/0x810 [ 3141.518666][T16553] ? _copy_from_iter_full+0x25c/0x870 [ 3141.524030][T16553] ? __phys_addr_symbol+0x2c/0x70 [ 3141.529128][T16553] ? __check_object_size+0x171/0x437 [ 3141.534410][T16553] netlink_sendmsg+0x882/0xe10 [ 3141.539163][T16553] ? aa_af_perm+0x260/0x260 [ 3141.543692][T16553] ? netlink_unicast+0x740/0x740 [ 3141.548617][T16553] ? netlink_unicast+0x740/0x740 [ 3141.553537][T16553] sock_sendmsg+0xcf/0x120 [ 3141.557935][T16553] ____sys_sendmsg+0x6b9/0x7d0 [ 3141.562733][T16553] ? kernel_sendmsg+0x50/0x50 [ 3141.567403][T16553] ? mark_lock+0xbc/0x1220 [ 3141.571805][T16553] ___sys_sendmsg+0x100/0x170 [ 3141.576465][T16553] ? sendmsg_copy_msghdr+0x70/0x70 [ 3141.581561][T16553] ? __fget_files+0x329/0x4f0 [ 3141.586220][T16553] ? ksys_dup3+0x3c0/0x3c0 [ 3141.590631][T16553] ? __fget_light+0x208/0x270 [ 3141.595292][T16553] __sys_sendmsg+0xec/0x1b0 [ 3141.599775][T16553] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3141.604776][T16553] ? __x64_sys_futex+0x380/0x4f0 [ 3141.609698][T16553] ? trace_hardirqs_off_caller+0x55/0x230 [ 3141.615398][T16553] ? do_syscall_64+0x21/0x7d0 [ 3141.620063][T16553] do_syscall_64+0xf6/0x7d0 [ 3141.624562][T16553] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3141.630431][T16553] RIP: 0033:0x45c849 [ 3141.634307][T16553] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3141.653916][T16553] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3141.662309][T16553] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3141.670261][T16553] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3141.678222][T16553] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3141.686217][T16553] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3141.694190][T16553] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3141.706925][T16557] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3141.723944][T16557] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3141.723944][T16557] !' [ 3141.744325][T16557] CPU: 0 PID: 16557 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3141.753068][T16557] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3141.763253][T16557] Call Trace: [ 3141.766583][T16557] dump_stack+0x188/0x20d [ 3141.770915][T16557] sysfs_warn_dup.cold+0x1c/0x2d [ 3141.775863][T16557] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3141.781921][T16557] sysfs_create_link+0x61/0xc0 [ 3141.786708][T16557] device_add+0x71c/0x1bc0 [ 3141.791139][T16557] ? uevent_show+0x360/0x360 [ 3141.795754][T16557] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3141.801738][T16557] wiphy_register+0x1c46/0x2720 [ 3141.806757][T16557] ? wiphy_unregister+0xf90/0xf90 [ 3141.811773][T16557] ? __kmalloc+0x629/0x7a0 [ 3141.816179][T16557] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3141.821798][T16557] ieee80211_register_hw+0x13d4/0x36a0 [ 3141.827246][T16557] ? __debug_object_init+0x4a1/0xe20 [ 3141.832530][T16557] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3141.838085][T16557] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3141.843624][T16557] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3141.849644][T16557] ? memset+0x20/0x40 [ 3141.853624][T16557] ? __hrtimer_init+0x134/0x260 [ 3141.858486][T16557] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3141.864192][T16557] ? vprintk_func+0x81/0x17e [ 3141.868783][T16557] ? hwsim_register_received_nl+0x400/0x400 [ 3141.874801][T16557] hwsim_new_radio_nl+0x905/0xf60 [ 3141.879834][T16557] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3141.885719][T16557] ? cap_capable+0x1eb/0x250 [ 3141.890444][T16557] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3141.896834][T16557] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3141.903171][T16557] genl_rcv_msg+0x627/0xdf0 [ 3141.907681][T16557] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3141.914011][T16557] ? mark_held_locks+0x9f/0xe0 [ 3141.918763][T16557] netlink_rcv_skb+0x15a/0x410 [ 3141.923524][T16557] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3141.929850][T16557] ? netlink_ack+0xa80/0xa80 [ 3141.934437][T16557] ? retint_kernel+0x2b/0x2b [ 3141.939018][T16557] ? down_read+0x110/0x420 [ 3141.943415][T16557] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3141.949734][T16557] genl_rcv+0x24/0x40 [ 3141.953704][T16557] netlink_unicast+0x537/0x740 [ 3141.958474][T16557] ? netlink_attachskb+0x810/0x810 [ 3141.963593][T16557] ? _copy_from_iter_full+0x25c/0x870 [ 3141.969043][T16557] ? __phys_addr_symbol+0x2c/0x70 [ 3141.974056][T16557] ? __check_object_size+0x171/0x437 [ 3141.979334][T16557] netlink_sendmsg+0x882/0xe10 [ 3141.984083][T16557] ? aa_af_perm+0x260/0x260 [ 3141.988567][T16557] ? netlink_unicast+0x740/0x740 [ 3141.993494][T16557] ? netlink_unicast+0x740/0x740 [ 3141.998451][T16557] sock_sendmsg+0xcf/0x120 [ 3142.002893][T16557] ____sys_sendmsg+0x6b9/0x7d0 [ 3142.007641][T16557] ? kernel_sendmsg+0x50/0x50 [ 3142.012301][T16557] ? mark_lock+0xbc/0x1220 [ 3142.016704][T16557] ___sys_sendmsg+0x100/0x170 [ 3142.021374][T16557] ? sendmsg_copy_msghdr+0x70/0x70 [ 3142.026477][T16557] ? __fget_files+0x329/0x4f0 [ 3142.031215][T16557] ? ksys_dup3+0x3c0/0x3c0 [ 3142.035630][T16557] ? lock_acquire+0x209/0x420 [ 3142.040346][T16557] ? __fget_light+0x208/0x270 [ 3142.045008][T16557] __sys_sendmsg+0xec/0x1b0 [ 3142.049516][T16557] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3142.054550][T16557] ? do_syscall_64+0x4f/0x7d0 [ 3142.059230][T16557] do_syscall_64+0xf6/0x7d0 [ 3142.063743][T16557] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3142.069621][T16557] RIP: 0033:0x45c849 [ 3142.073505][T16557] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3142.093100][T16557] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3142.101504][T16557] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3142.109503][T16557] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3142.117477][T16557] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3142.125428][T16557] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3142.133380][T16557] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:44:49 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e480000244c0705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:49 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024006b05d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:49 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, 0x0, 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3142.175887][T16560] netlink: 18410 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3142.197450][T16560] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3142.197450][T16560] !' [ 3142.228515][T16560] CPU: 0 PID: 16560 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3142.237227][T16560] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3142.247315][T16560] Call Trace: [ 3142.250631][T16560] dump_stack+0x188/0x20d [ 3142.254987][T16560] sysfs_warn_dup.cold+0x1c/0x2d [ 3142.259942][T16560] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3142.266027][T16560] sysfs_create_link+0x61/0xc0 [ 3142.270813][T16560] device_add+0x71c/0x1bc0 [ 3142.275246][T16560] ? uevent_show+0x360/0x360 [ 3142.279846][T16560] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3142.285854][T16560] wiphy_register+0x1c46/0x2720 [ 3142.290710][T16560] ? wiphy_unregister+0xf90/0xf90 [ 3142.295718][T16560] ? __kmalloc+0x629/0x7a0 [ 3142.300118][T16560] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3142.305646][T16560] ieee80211_register_hw+0x13d4/0x36a0 [ 3142.311092][T16560] ? __debug_object_init+0x4a1/0xe20 [ 3142.316360][T16560] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3142.321803][T16560] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3142.327339][T16560] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3142.333320][T16560] ? memset+0x20/0x40 [ 3142.337289][T16560] ? __hrtimer_init+0x134/0x260 [ 3142.342129][T16560] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3142.347832][T16560] ? vprintk_func+0x81/0x17e [ 3142.352412][T16560] ? hwsim_register_received_nl+0x400/0x400 [ 3142.358307][T16560] hwsim_new_radio_nl+0x905/0xf60 [ 3142.363315][T16560] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3142.369227][T16560] ? cap_capable+0x1eb/0x250 [ 3142.373908][T16560] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3142.380224][T16560] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3142.386544][T16560] genl_rcv_msg+0x627/0xdf0 [ 3142.391167][T16560] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3142.397486][T16560] ? retint_kernel+0x2b/0x2b [ 3142.402070][T16560] netlink_rcv_skb+0x15a/0x410 [ 3142.406818][T16560] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3142.413142][T16560] ? netlink_ack+0xa80/0xa80 [ 3142.417746][T16560] genl_rcv+0x24/0x40 [ 3142.421755][T16560] netlink_unicast+0x537/0x740 [ 3142.426505][T16560] ? netlink_attachskb+0x810/0x810 [ 3142.431632][T16560] ? _copy_from_iter_full+0x25c/0x870 [ 3142.436986][T16560] ? __phys_addr_symbol+0x2c/0x70 [ 3142.442015][T16560] ? __check_object_size+0x171/0x437 [ 3142.447587][T16560] netlink_sendmsg+0x882/0xe10 [ 3142.452382][T16560] ? aa_af_perm+0x260/0x260 [ 3142.456868][T16560] ? netlink_unicast+0x740/0x740 [ 3142.461793][T16560] ? netlink_unicast+0x740/0x740 [ 3142.466711][T16560] sock_sendmsg+0xcf/0x120 [ 3142.471107][T16560] ____sys_sendmsg+0x6b9/0x7d0 [ 3142.475856][T16560] ? kernel_sendmsg+0x50/0x50 [ 3142.480515][T16560] ? __fget_files+0x307/0x4f0 [ 3142.485177][T16560] ___sys_sendmsg+0x100/0x170 [ 3142.489859][T16560] ? sendmsg_copy_msghdr+0x70/0x70 [ 3142.494956][T16560] ? __fget_files+0x329/0x4f0 [ 3142.499664][T16560] ? ksys_dup3+0x3c0/0x3c0 [ 3142.504065][T16560] ? lock_acquire+0x197/0x420 [ 3142.508733][T16560] ? __might_fault+0xef/0x1d0 [ 3142.513406][T16560] ? __fget_light+0x208/0x270 [ 3142.518076][T16560] __sys_sendmsg+0xec/0x1b0 [ 3142.522573][T16560] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3142.527580][T16560] ? __x64_sys_futex+0x380/0x4f0 [ 3142.532503][T16560] ? trace_hardirqs_off_caller+0x55/0x230 [ 3142.538206][T16560] ? do_syscall_64+0x21/0x7d0 [ 3142.542879][T16560] do_syscall_64+0xf6/0x7d0 [ 3142.547374][T16560] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3142.553256][T16560] RIP: 0033:0x45c849 [ 3142.557136][T16560] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3142.576722][T16560] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3142.585121][T16560] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3142.593107][T16560] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3142.601059][T16560] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3142.609012][T16560] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3142.617169][T16560] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3142.641248][T16568] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3142.672194][T16568] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3142.672194][T16568] !' [ 3142.687823][T16568] CPU: 0 PID: 16568 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3142.696532][T16568] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3142.706642][T16568] Call Trace: [ 3142.709922][T16568] dump_stack+0x188/0x20d [ 3142.714244][T16568] sysfs_warn_dup.cold+0x1c/0x2d [ 3142.719180][T16568] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3142.725251][T16568] sysfs_create_link+0x61/0xc0 [ 3142.729997][T16568] device_add+0x71c/0x1bc0 [ 3142.734401][T16568] ? uevent_show+0x360/0x360 [ 3142.738988][T16568] wiphy_register+0x1c46/0x2720 [ 3142.743824][T16568] ? wiphy_unregister+0xf90/0xf90 [ 3142.748828][T16568] ? __kmalloc+0x629/0x7a0 [ 3142.753227][T16568] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3142.758755][T16568] ? __sanitizer_cov_trace_const_cmp8+0x20/0x20 [ 3142.764985][T16568] ieee80211_register_hw+0x13d4/0x36a0 [ 3142.770436][T16568] ? __debug_object_init+0x4a1/0xe20 [ 3142.775713][T16568] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3142.781153][T16568] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3142.786691][T16568] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3142.792660][T16568] ? memset+0x20/0x40 [ 3142.796630][T16568] ? __hrtimer_init+0x134/0x260 [ 3142.801462][T16568] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3142.807175][T16568] ? hwsim_register_received_nl+0x400/0x400 [ 3142.813049][T16568] hwsim_new_radio_nl+0x905/0xf60 [ 3142.818069][T16568] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3142.823948][T16568] ? cap_capable+0x1eb/0x250 [ 3142.828528][T16568] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3142.834834][T16568] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3142.841154][T16568] genl_rcv_msg+0x627/0xdf0 [ 3142.845656][T16568] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3142.852002][T16568] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 3142.857798][T16568] netlink_rcv_skb+0x15a/0x410 [ 3142.862581][T16568] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3142.868901][T16568] ? netlink_ack+0xa80/0xa80 [ 3142.873489][T16568] genl_rcv+0x24/0x40 [ 3142.877500][T16568] netlink_unicast+0x537/0x740 [ 3142.882274][T16568] ? netlink_attachskb+0x810/0x810 [ 3142.887370][T16568] ? _copy_from_iter_full+0x25c/0x870 [ 3142.892731][T16568] ? __phys_addr_symbol+0x2c/0x70 [ 3142.897755][T16568] ? __check_object_size+0x171/0x437 [ 3142.903073][T16568] netlink_sendmsg+0x882/0xe10 [ 3142.907926][T16568] ? aa_af_perm+0x260/0x260 [ 3142.912408][T16568] ? netlink_unicast+0x740/0x740 [ 3142.917332][T16568] ? netlink_unicast+0x740/0x740 [ 3142.922294][T16568] sock_sendmsg+0xcf/0x120 [ 3142.926728][T16568] ____sys_sendmsg+0x6b9/0x7d0 [ 3142.931479][T16568] ? kernel_sendmsg+0x50/0x50 [ 3142.936155][T16568] ? mark_lock+0xbc/0x1220 [ 3142.940559][T16568] ___sys_sendmsg+0x100/0x170 [ 3142.945224][T16568] ? sendmsg_copy_msghdr+0x70/0x70 [ 3142.950320][T16568] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3142.955767][T16568] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3142.961035][T16568] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3142.966477][T16568] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3142.972180][T16568] ? retint_kernel+0x2b/0x2b [ 3142.976777][T16568] ? sockfd_lookup_light+0xd9/0x170 [ 3142.981964][T16568] ? sockfd_lookup_light+0x100/0x170 [ 3142.987230][T16568] __sys_sendmsg+0xec/0x1b0 [ 3142.991713][T16568] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3142.996731][T16568] ? __x64_sys_futex+0x380/0x4f0 [ 3143.001659][T16568] ? trace_hardirqs_off_caller+0x55/0x230 [ 3143.007380][T16568] ? do_syscall_64+0x21/0x7d0 [ 3143.012068][T16568] do_syscall_64+0xf6/0x7d0 [ 3143.016558][T16568] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3143.022436][T16568] RIP: 0033:0x45c849 [ 3143.026311][T16568] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3143.045900][T16568] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3143.054310][T16568] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3143.062265][T16568] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3143.070218][T16568] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3143.078179][T16568] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3143.086131][T16568] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3143.133141][T16570] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3143.150791][T16570] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3143.150791][T16570] !' [ 3143.166329][T16570] CPU: 1 PID: 16570 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3143.175031][T16570] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3143.185069][T16570] Call Trace: [ 3143.188345][T16570] dump_stack+0x188/0x20d [ 3143.192673][T16570] sysfs_warn_dup.cold+0x1c/0x2d [ 3143.197594][T16570] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3143.203649][T16570] sysfs_create_link+0x61/0xc0 [ 3143.208430][T16570] device_add+0x71c/0x1bc0 [ 3143.212874][T16570] ? uevent_show+0x360/0x360 [ 3143.217448][T16570] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3143.223410][T16570] wiphy_register+0x1c46/0x2720 [ 3143.228242][T16570] ? wiphy_unregister+0xf90/0xf90 [ 3143.233306][T16570] ? __kmalloc+0x629/0x7a0 [ 3143.237704][T16570] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3143.243234][T16570] ieee80211_register_hw+0x13d4/0x36a0 [ 3143.248672][T16570] ? __debug_object_init+0x4a1/0xe20 [ 3143.253989][T16570] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3143.259432][T16570] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3143.264997][T16570] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3143.270957][T16570] ? memset+0x20/0x40 [ 3143.274915][T16570] ? __hrtimer_init+0x134/0x260 [ 3143.279744][T16570] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3143.285442][T16570] ? vprintk_func+0x81/0x17e [ 3143.290017][T16570] ? hwsim_register_received_nl+0x400/0x400 [ 3143.295888][T16570] hwsim_new_radio_nl+0x905/0xf60 [ 3143.300893][T16570] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3143.306811][T16570] ? cap_capable+0x1eb/0x250 [ 3143.311382][T16570] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3143.317682][T16570] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3143.323991][T16570] genl_rcv_msg+0x627/0xdf0 [ 3143.328477][T16570] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3143.334792][T16570] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 3143.340722][T16570] netlink_rcv_skb+0x15a/0x410 [ 3143.345500][T16570] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3143.351842][T16570] ? netlink_ack+0xa80/0xa80 [ 3143.356421][T16570] genl_rcv+0x24/0x40 [ 3143.360390][T16570] netlink_unicast+0x537/0x740 [ 3143.365149][T16570] ? netlink_attachskb+0x810/0x810 [ 3143.370248][T16570] ? _copy_from_iter_full+0x25c/0x870 [ 3143.375594][T16570] ? __phys_addr_symbol+0x2c/0x70 [ 3143.380615][T16570] ? __check_object_size+0x171/0x437 [ 3143.385882][T16570] netlink_sendmsg+0x882/0xe10 [ 3143.390633][T16570] ? aa_af_perm+0x260/0x260 [ 3143.395139][T16570] ? netlink_unicast+0x740/0x740 [ 3143.400079][T16570] ? netlink_unicast+0x740/0x740 [ 3143.405016][T16570] sock_sendmsg+0xcf/0x120 [ 3143.409428][T16570] ____sys_sendmsg+0x6b9/0x7d0 [ 3143.414193][T16570] ? kernel_sendmsg+0x50/0x50 [ 3143.418893][T16570] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3143.424162][T16570] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3143.429608][T16570] ___sys_sendmsg+0x100/0x170 [ 3143.434268][T16570] ? sendmsg_copy_msghdr+0x70/0x70 [ 3143.439359][T16570] ? __rcu_read_unlock+0xc1/0x700 [ 3143.444381][T16570] ? __fget_files+0x329/0x4f0 [ 3143.449052][T16570] ? ksys_dup3+0x3c0/0x3c0 [ 3143.453453][T16570] ? lock_acquire+0x197/0x420 [ 3143.458123][T16570] ? __might_fault+0xef/0x1d0 [ 3143.462802][T16570] ? __fget_light+0x208/0x270 [ 3143.467465][T16570] __sys_sendmsg+0xec/0x1b0 [ 3143.471952][T16570] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3143.476962][T16570] ? __x64_sys_futex+0x380/0x4f0 [ 3143.481892][T16570] ? trace_hardirqs_off_caller+0x55/0x230 [ 3143.487597][T16570] ? do_syscall_64+0x21/0x7d0 [ 3143.492315][T16570] do_syscall_64+0xf6/0x7d0 [ 3143.496808][T16570] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3143.502677][T16570] RIP: 0033:0x45c849 [ 3143.506553][T16570] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3143.526227][T16570] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3143.534653][T16570] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3143.542619][T16570] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3143.550570][T16570] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3143.558519][T16570] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3143.566472][T16570] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:44:55 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x0, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:44:55 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60350011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3148.855422][T16578] netlink: 18402 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3148.886657][T16578] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3148.886657][T16578] !' [ 3148.897366][T16578] CPU: 0 PID: 16578 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3148.906221][T16578] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3148.916312][T16578] Call Trace: [ 3148.919607][T16578] dump_stack+0x188/0x20d [ 3148.923954][T16578] sysfs_warn_dup.cold+0x1c/0x2d [ 3148.929467][T16578] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3148.935542][T16578] sysfs_create_link+0x61/0xc0 [ 3148.940315][T16578] device_add+0x71c/0x1bc0 [ 3148.944720][T16578] ? ieee80211_set_bitrate_flags+0x153/0x5c0 [ 3148.950704][T16578] ? uevent_show+0x360/0x360 [ 3148.955352][T16578] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3148.961345][T16578] wiphy_register+0x1c46/0x2720 [ 3148.966215][T16578] ? wiphy_unregister+0xf90/0xf90 [ 3148.971229][T16578] ? __kmalloc+0x629/0x7a0 [ 3148.975641][T16578] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3148.981180][T16578] ? ieee80211_register_hw+0x95c/0x36a0 [ 3148.986714][T16578] ieee80211_register_hw+0x13d4/0x36a0 [ 3148.992237][T16578] ? __debug_object_init+0x4a1/0xe20 [ 3148.997523][T16578] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3149.002965][T16578] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3149.008507][T16578] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3149.014486][T16578] ? memset+0x20/0x40 [ 3149.018476][T16578] ? __hrtimer_init+0x134/0x260 [ 3149.023328][T16578] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3149.029167][T16578] ? vprintk_func+0x81/0x17e [ 3149.033871][T16578] ? hwsim_register_received_nl+0x400/0x400 [ 3149.039770][T16578] hwsim_new_radio_nl+0x905/0xf60 [ 3149.044782][T16578] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3149.050066][T16578] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3149.055961][T16578] genl_rcv_msg+0x627/0xdf0 [ 3149.060451][T16578] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3149.066783][T16578] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3149.072229][T16578] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3149.077979][T16578] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3149.084394][T16578] netlink_rcv_skb+0x15a/0x410 [ 3149.089163][T16578] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3149.095528][T16578] ? netlink_ack+0xa80/0xa80 [ 3149.100113][T16578] genl_rcv+0x24/0x40 [ 3149.104079][T16578] netlink_unicast+0x537/0x740 [ 3149.108841][T16578] ? netlink_attachskb+0x810/0x810 [ 3149.113946][T16578] ? _copy_from_iter_full+0x25c/0x870 [ 3149.119736][T16578] ? __phys_addr_symbol+0x2c/0x70 [ 3149.124774][T16578] ? __check_object_size+0x171/0x437 [ 3149.130058][T16578] netlink_sendmsg+0x882/0xe10 [ 3149.134835][T16578] ? aa_af_perm+0x260/0x260 [ 3149.139332][T16578] ? netlink_unicast+0x740/0x740 [ 3149.144273][T16578] ? netlink_unicast+0x740/0x740 [ 3149.149211][T16578] sock_sendmsg+0xcf/0x120 [ 3149.153632][T16578] ____sys_sendmsg+0x6b9/0x7d0 [ 3149.158389][T16578] ? kernel_sendmsg+0x50/0x50 [ 3149.163054][T16578] ? mark_lock+0xbc/0x1220 [ 3149.167457][T16578] ___sys_sendmsg+0x100/0x170 [ 3149.172124][T16578] ? sendmsg_copy_msghdr+0x70/0x70 [ 3149.177240][T16578] ? __fget_files+0x329/0x4f0 [ 3149.181909][T16578] ? ksys_dup3+0x3c0/0x3c0 [ 3149.186305][T16578] ? lock_acquire+0x197/0x420 [ 3149.190975][T16578] ? __might_fault+0xef/0x1d0 [ 3149.195666][T16578] ? __fget_light+0x208/0x270 [ 3149.200330][T16578] __sys_sendmsg+0xec/0x1b0 [ 3149.204818][T16578] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3149.209835][T16578] ? __x64_sys_futex+0x380/0x4f0 [ 3149.214788][T16578] ? trace_hardirqs_off_caller+0x55/0x230 [ 3149.220494][T16578] ? do_syscall_64+0x21/0x7d0 [ 3149.225170][T16578] do_syscall_64+0xf6/0x7d0 [ 3149.229678][T16578] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3149.235577][T16578] RIP: 0033:0x45c849 [ 3149.239457][T16578] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3149.259044][T16578] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3149.267441][T16578] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3149.275400][T16578] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3149.283547][T16578] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3149.291678][T16578] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3149.299632][T16578] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3158.836335][T16583] netlink: 'syz-executor.4': attribute type 8 has an invalid length. [ 3158.845403][T16583] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.4'. [ 3158.866942][T16583] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3158.866942][T16583] !' [ 3158.876871][T16583] CPU: 0 PID: 16583 Comm: syz-executor.4 Not tainted 5.6.0-rc5-syzkaller #0 [ 3158.885537][T16583] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3158.895579][T16583] Call Trace: [ 3158.898945][T16583] dump_stack+0x188/0x20d [ 3158.903275][T16583] sysfs_warn_dup.cold+0x1c/0x2d [ 3158.908207][T16583] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3158.914266][T16583] sysfs_create_link+0x61/0xc0 [ 3158.919076][T16583] device_add+0x71c/0x1bc0 [ 3158.923494][T16583] ? retint_kernel+0x2b/0x2b [ 3158.928077][T16583] ? uevent_show+0x360/0x360 [ 3158.932766][T16583] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3158.939548][T16583] wiphy_register+0x1c46/0x2720 [ 3158.944490][T16583] ? wiphy_unregister+0xf90/0xf90 [ 3158.949518][T16583] ? __kmalloc+0x629/0x7a0 [ 3158.953943][T16583] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3158.959493][T16583] ? ieee80211_register_hw+0x1d34/0x36a0 [ 3158.965122][T16583] ieee80211_register_hw+0x13d4/0x36a0 [ 3158.970579][T16583] ? __debug_object_init+0x4a1/0xe20 [ 3158.975882][T16583] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3158.981358][T16583] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3158.986914][T16583] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3158.992907][T16583] ? memset+0x20/0x40 [ 3158.996898][T16583] ? __hrtimer_init+0x134/0x260 [ 3159.001769][T16583] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3159.007509][T16583] ? hwsim_register_received_nl+0x400/0x400 [ 3159.013575][T16583] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3159.019199][T16583] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3159.024660][T16583] hwsim_new_radio_nl+0x905/0xf60 [ 3159.029679][T16583] ? retint_kernel+0x2b/0x2b [ 3159.034275][T16583] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3159.040172][T16583] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3159.046502][T16583] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3159.052821][T16583] genl_rcv_msg+0x627/0xdf0 [ 3159.057326][T16583] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3159.063644][T16583] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3159.068916][T16583] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3159.074362][T16583] netlink_rcv_skb+0x15a/0x410 [ 3159.079121][T16583] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3159.085433][T16583] ? netlink_ack+0xa80/0xa80 [ 3159.090016][T16583] genl_rcv+0x24/0x40 [ 3159.093983][T16583] netlink_unicast+0x537/0x740 [ 3159.098736][T16583] ? netlink_attachskb+0x810/0x810 [ 3159.103834][T16583] ? _copy_from_iter_full+0x25c/0x870 [ 3159.109198][T16583] ? __phys_addr_symbol+0x2c/0x70 [ 3159.114206][T16583] ? __check_object_size+0x171/0x437 [ 3159.119479][T16583] netlink_sendmsg+0x882/0xe10 [ 3159.124227][T16583] ? aa_af_perm+0x260/0x260 [ 3159.128723][T16583] ? netlink_unicast+0x740/0x740 [ 3159.133738][T16583] ? netlink_unicast+0x740/0x740 [ 3159.138657][T16583] sock_sendmsg+0xcf/0x120 [ 3159.143058][T16583] ____sys_sendmsg+0x6b9/0x7d0 [ 3159.147831][T16583] ? kernel_sendmsg+0x50/0x50 [ 3159.152541][T16583] ___sys_sendmsg+0x100/0x170 [ 3159.157232][T16583] ? sendmsg_copy_msghdr+0x70/0x70 [ 3159.162445][T16583] ? __fget_files+0x329/0x4f0 [ 3159.167133][T16583] ? ksys_dup3+0x3c0/0x3c0 [ 3159.171542][T16583] ? lock_acquire+0x197/0x420 [ 3159.176207][T16583] ? __might_fault+0xef/0x1d0 [ 3159.180874][T16583] ? __fget_light+0x208/0x270 [ 3159.185542][T16583] __sys_sendmsg+0xec/0x1b0 [ 3159.190030][T16583] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3159.195038][T16583] ? __x64_sys_futex+0x380/0x4f0 [ 3159.199969][T16583] ? trace_hardirqs_off_caller+0x55/0x230 [ 3159.205678][T16583] ? do_syscall_64+0x21/0x7d0 [ 3159.210343][T16583] do_syscall_64+0xf6/0x7d0 [ 3159.214837][T16583] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3159.220712][T16583] RIP: 0033:0x45c849 [ 3159.224589][T16583] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3159.244294][T16583] RSP: 002b:00007f5b9457dc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3159.252704][T16583] RAX: ffffffffffffffda RBX: 00007f5b9457e6d4 RCX: 000000000045c849 [ 3159.260676][T16583] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3159.268665][T16583] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3159.276629][T16583] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff 23:45:06 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x0, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:45:06 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024006b05d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:45:06 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, 0x0, 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:45:06 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60610011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:45:06 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024600705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3159.284588][T16583] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3159.352090][T16589] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3159.374704][T16589] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3159.374704][T16589] !' [ 3159.384852][T16589] CPU: 1 PID: 16589 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3159.393520][T16589] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3159.403558][T16589] Call Trace: [ 3159.406835][T16589] dump_stack+0x188/0x20d [ 3159.411201][T16589] sysfs_warn_dup.cold+0x1c/0x2d [ 3159.416135][T16589] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3159.422198][T16589] sysfs_create_link+0x61/0xc0 [ 3159.427061][T16589] device_add+0x71c/0x1bc0 [ 3159.431466][T16589] ? uevent_show+0x360/0x360 [ 3159.436090][T16589] wiphy_register+0x1c46/0x2720 [ 3159.440929][T16589] ? wiphy_unregister+0xf90/0xf90 [ 3159.446001][T16589] ? retint_kernel+0x2b/0x2b [ 3159.450596][T16589] ? ieee80211_register_hw+0x1375/0x36a0 [ 3159.456265][T16589] ieee80211_register_hw+0x13d4/0x36a0 [ 3159.461720][T16589] ? __debug_object_init+0x4a1/0xe20 [ 3159.467025][T16589] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3159.472470][T16589] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3159.477998][T16589] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3159.483959][T16589] ? memset+0x20/0x40 [ 3159.487931][T16589] ? __hrtimer_init+0x134/0x260 [ 3159.492774][T16589] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3159.498482][T16589] ? hwsim_register_received_nl+0x400/0x400 [ 3159.504358][T16589] ? __nla_validate_parse+0x2af/0x1cd0 [ 3159.509806][T16589] hwsim_new_radio_nl+0x905/0xf60 [ 3159.514812][T16589] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3159.520254][T16589] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3159.526124][T16589] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3159.531833][T16589] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3159.538144][T16589] genl_rcv_msg+0x627/0xdf0 [ 3159.542805][T16589] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3159.549124][T16589] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3159.554408][T16589] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3159.559906][T16589] netlink_rcv_skb+0x15a/0x410 [ 3159.564679][T16589] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3159.571007][T16589] ? netlink_ack+0xa80/0xa80 [ 3159.575654][T16589] genl_rcv+0x24/0x40 [ 3159.579631][T16589] netlink_unicast+0x537/0x740 [ 3159.584401][T16589] ? netlink_attachskb+0x810/0x810 [ 3159.589504][T16589] ? _copy_from_iter_full+0x25c/0x870 [ 3159.595104][T16589] ? __phys_addr_symbol+0x2c/0x70 [ 3159.600116][T16589] ? __check_object_size+0x171/0x437 [ 3159.605403][T16589] netlink_sendmsg+0x882/0xe10 [ 3159.610159][T16589] ? aa_af_perm+0x260/0x260 [ 3159.614646][T16589] ? netlink_unicast+0x740/0x740 [ 3159.619575][T16589] ? netlink_unicast+0x740/0x740 [ 3159.624544][T16589] sock_sendmsg+0xcf/0x120 [ 3159.628986][T16589] ____sys_sendmsg+0x6b9/0x7d0 [ 3159.633772][T16589] ? kernel_sendmsg+0x50/0x50 [ 3159.638439][T16589] ? retint_kernel+0x2b/0x2b [ 3159.643054][T16589] ___sys_sendmsg+0x100/0x170 [ 3159.647750][T16589] ? sendmsg_copy_msghdr+0x70/0x70 [ 3159.652864][T16589] ? __fget_files+0x329/0x4f0 [ 3159.657561][T16589] ? ksys_dup3+0x3c0/0x3c0 [ 3159.661977][T16589] ? lock_acquire+0x197/0x420 [ 3159.666650][T16589] ? __might_fault+0xef/0x1d0 [ 3159.671359][T16589] ? __fget_light+0x208/0x270 [ 3159.676036][T16589] __sys_sendmsg+0xec/0x1b0 [ 3159.680531][T16589] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3159.685562][T16589] ? __x64_sys_futex+0x380/0x4f0 [ 3159.690514][T16589] ? trace_hardirqs_off_caller+0x55/0x230 [ 3159.696226][T16589] ? do_syscall_64+0x21/0x7d0 [ 3159.700936][T16589] do_syscall_64+0xf6/0x7d0 [ 3159.705441][T16589] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3159.711367][T16589] RIP: 0033:0x45c849 [ 3159.715252][T16589] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3159.734853][T16589] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3159.743349][T16589] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3159.751302][T16589] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3159.759255][T16589] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3159.767221][T16589] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3159.775182][T16589] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3159.805858][T16593] netlink: 18358 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3159.827435][T16593] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3159.827435][T16593] !' [ 3159.844180][T16593] CPU: 1 PID: 16593 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3159.853029][T16593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3159.863075][T16593] Call Trace: [ 3159.866360][T16593] dump_stack+0x188/0x20d [ 3159.870682][T16593] sysfs_warn_dup.cold+0x1c/0x2d [ 3159.875626][T16593] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3159.881679][T16593] sysfs_create_link+0x61/0xc0 [ 3159.886429][T16593] device_add+0x71c/0x1bc0 [ 3159.890844][T16593] ? uevent_show+0x360/0x360 [ 3159.895430][T16593] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3159.901395][T16593] wiphy_register+0x1c46/0x2720 [ 3159.906234][T16593] ? wiphy_unregister+0xf90/0xf90 [ 3159.911243][T16593] ? retint_kernel+0x2b/0x2b [ 3159.915823][T16593] ? ieee80211_register_hw+0x1196/0x36a0 [ 3159.921455][T16593] ieee80211_register_hw+0x13d4/0x36a0 [ 3159.926914][T16593] ? __debug_object_init+0x4a1/0xe20 [ 3159.932205][T16593] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3159.937649][T16593] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3159.943176][T16593] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3159.949137][T16593] ? memset+0x20/0x40 [ 3159.953102][T16593] ? __hrtimer_init+0x134/0x260 [ 3159.957936][T16593] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3159.963641][T16593] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3159.968916][T16593] ? hwsim_register_received_nl+0x400/0x400 [ 3159.976010][T16593] ? hwsim_new_radio_nl+0x211/0xf60 [ 3159.981195][T16593] hwsim_new_radio_nl+0x905/0xf60 [ 3159.986203][T16593] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3159.992085][T16593] ? cap_capable+0x1eb/0x250 [ 3159.996683][T16593] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3160.003021][T16593] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3160.009363][T16593] genl_rcv_msg+0x627/0xdf0 [ 3160.013861][T16593] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3160.020197][T16593] ? retint_kernel+0x2b/0x2b [ 3160.024798][T16593] netlink_rcv_skb+0x15a/0x410 [ 3160.029554][T16593] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3160.035875][T16593] ? netlink_ack+0xa80/0xa80 [ 3160.040461][T16593] genl_rcv+0x24/0x40 [ 3160.044429][T16593] netlink_unicast+0x537/0x740 [ 3160.049181][T16593] ? netlink_attachskb+0x810/0x810 [ 3160.054277][T16593] ? _copy_from_iter_full+0x25c/0x870 [ 3160.059644][T16593] ? __phys_addr_symbol+0x2c/0x70 [ 3160.064665][T16593] ? __check_object_size+0x171/0x437 [ 3160.069943][T16593] netlink_sendmsg+0x882/0xe10 [ 3160.074692][T16593] ? aa_af_perm+0x260/0x260 [ 3160.079178][T16593] ? netlink_unicast+0x740/0x740 [ 3160.084111][T16593] ? netlink_unicast+0x740/0x740 [ 3160.089030][T16593] sock_sendmsg+0xcf/0x120 [ 3160.093429][T16593] ____sys_sendmsg+0x6b9/0x7d0 [ 3160.098177][T16593] ? kernel_sendmsg+0x50/0x50 [ 3160.102841][T16593] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3160.108299][T16593] ___sys_sendmsg+0x100/0x170 [ 3160.112958][T16593] ? retint_kernel+0x2b/0x2b [ 3160.117531][T16593] ? sendmsg_copy_msghdr+0x70/0x70 [ 3160.122633][T16593] ? __fget_files+0x329/0x4f0 [ 3160.127295][T16593] ? ksys_dup3+0x3c0/0x3c0 [ 3160.131695][T16593] ? lock_acquire+0x197/0x420 [ 3160.136357][T16593] ? __might_fault+0xef/0x1d0 [ 3160.141021][T16593] ? __fget_light+0x208/0x270 [ 3160.145685][T16593] __sys_sendmsg+0xec/0x1b0 [ 3160.150173][T16593] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3160.155183][T16593] ? __x64_sys_futex+0x380/0x4f0 [ 3160.160130][T16593] ? trace_hardirqs_off_caller+0x55/0x230 [ 3160.165835][T16593] ? do_syscall_64+0x21/0x7d0 [ 3160.170507][T16593] do_syscall_64+0xf6/0x7d0 [ 3160.174996][T16593] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3160.180871][T16593] RIP: 0033:0x45c849 [ 3160.184747][T16593] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3160.204332][T16593] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3160.212723][T16593] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3160.220689][T16593] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3160.228672][T16593] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3160.236647][T16593] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3160.244608][T16593] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:45:07 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:45:07 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc606b0011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3160.276307][T16592] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3160.287896][T16592] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3160.287896][T16592] !' [ 3160.306263][T16592] CPU: 1 PID: 16592 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3160.314973][T16592] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3160.325044][T16592] Call Trace: [ 3160.328357][T16592] dump_stack+0x188/0x20d [ 3160.332707][T16592] sysfs_warn_dup.cold+0x1c/0x2d [ 3160.337665][T16592] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3160.343749][T16592] sysfs_create_link+0x61/0xc0 [ 3160.348526][T16592] device_add+0x71c/0x1bc0 [ 3160.352957][T16592] ? uevent_show+0x360/0x360 [ 3160.357574][T16592] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3160.363563][T16592] wiphy_register+0x1c46/0x2720 [ 3160.368436][T16592] ? wiphy_unregister+0xf90/0xf90 [ 3160.373478][T16592] ? __kmalloc+0x629/0x7a0 [ 3160.377901][T16592] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3160.383465][T16592] ieee80211_register_hw+0x13d4/0x36a0 [ 3160.388940][T16592] ? __debug_object_init+0x4a1/0xe20 [ 3160.394241][T16592] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3160.399711][T16592] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3160.405270][T16592] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3160.411261][T16592] ? memset+0x20/0x40 [ 3160.415255][T16592] ? __hrtimer_init+0x134/0x260 [ 3160.420127][T16592] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3160.425842][T16592] ? vprintk_func+0x81/0x17e [ 3160.430426][T16592] ? hwsim_register_received_nl+0x400/0x400 [ 3160.436356][T16592] hwsim_new_radio_nl+0x905/0xf60 [ 3160.441366][T16592] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3160.447243][T16592] ? cap_capable+0x1eb/0x250 [ 3160.451911][T16592] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3160.458225][T16592] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3160.464534][T16592] genl_rcv_msg+0x627/0xdf0 [ 3160.469031][T16592] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3160.475363][T16592] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3160.480640][T16592] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3160.486083][T16592] netlink_rcv_skb+0x15a/0x410 [ 3160.490840][T16592] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3160.497160][T16592] ? netlink_ack+0xa80/0xa80 [ 3160.501735][T16592] genl_rcv+0x24/0x40 [ 3160.505738][T16592] netlink_unicast+0x537/0x740 [ 3160.510485][T16592] ? netlink_attachskb+0x810/0x810 [ 3160.515609][T16592] ? _copy_from_iter_full+0x25c/0x870 [ 3160.521018][T16592] ? __phys_addr_symbol+0x2c/0x70 [ 3160.526032][T16592] ? __check_object_size+0x171/0x437 [ 3160.531353][T16592] netlink_sendmsg+0x882/0xe10 [ 3160.536107][T16592] ? aa_af_perm+0x260/0x260 [ 3160.540593][T16592] ? netlink_unicast+0x740/0x740 [ 3160.545539][T16592] ? netlink_unicast+0x740/0x740 [ 3160.550464][T16592] sock_sendmsg+0xcf/0x120 [ 3160.554916][T16592] ____sys_sendmsg+0x6b9/0x7d0 [ 3160.559736][T16592] ? kernel_sendmsg+0x50/0x50 [ 3160.564419][T16592] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3160.569868][T16592] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3160.575265][T16592] ___sys_sendmsg+0x100/0x170 [ 3160.579969][T16592] ? sendmsg_copy_msghdr+0x70/0x70 [ 3160.585072][T16592] ? __fget_files+0x297/0x4f0 [ 3160.589731][T16592] ? __fget_files+0x329/0x4f0 [ 3160.594390][T16592] ? ksys_dup3+0x3c0/0x3c0 [ 3160.598782][T16592] ? lock_acquire+0x197/0x420 [ 3160.603437][T16592] ? __might_fault+0xef/0x1d0 [ 3160.608108][T16592] ? __fget_light+0x208/0x270 [ 3160.612769][T16592] __sys_sendmsg+0xec/0x1b0 [ 3160.617254][T16592] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3160.622258][T16592] ? __x64_sys_futex+0x380/0x4f0 [ 3160.627203][T16592] ? trace_hardirqs_off_caller+0x55/0x230 [ 3160.632948][T16592] ? do_syscall_64+0x21/0x7d0 [ 3160.637605][T16592] do_syscall_64+0xf6/0x7d0 [ 3160.642095][T16592] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3160.647965][T16592] RIP: 0033:0x45c849 [ 3160.651842][T16592] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3160.671433][T16592] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3160.679836][T16592] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3160.687832][T16592] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3160.695793][T16592] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3160.703746][T16592] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3160.711698][T16592] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:45:07 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024006b05d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3160.724009][T16597] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3160.763536][T16597] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3160.763536][T16597] !' [ 3160.774792][T16597] CPU: 1 PID: 16597 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3160.783480][T16597] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3160.793559][T16597] Call Trace: [ 3160.796879][T16597] dump_stack+0x188/0x20d [ 3160.801198][T16597] sysfs_warn_dup.cold+0x1c/0x2d [ 3160.806163][T16597] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3160.812252][T16597] sysfs_create_link+0x61/0xc0 [ 3160.817032][T16597] device_add+0x71c/0x1bc0 [ 3160.821482][T16597] ? uevent_show+0x360/0x360 [ 3160.826073][T16597] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3160.832039][T16597] wiphy_register+0x1c46/0x2720 [ 3160.836876][T16597] ? wiphy_unregister+0xf90/0xf90 [ 3160.841938][T16597] ? retint_kernel+0x2b/0x2b [ 3160.846606][T16597] ? ieee80211_register_hw+0xcf7/0x36a0 [ 3160.852136][T16597] ieee80211_register_hw+0x13d4/0x36a0 [ 3160.857579][T16597] ? __debug_object_init+0x4a1/0xe20 [ 3160.862858][T16597] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3160.868312][T16597] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3160.873863][T16597] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3160.879827][T16597] ? memset+0x20/0x40 [ 3160.883788][T16597] ? __hrtimer_init+0x134/0x260 [ 3160.888619][T16597] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3160.894355][T16597] ? hwsim_register_received_nl+0x400/0x400 [ 3160.900256][T16597] hwsim_new_radio_nl+0x905/0xf60 [ 3160.905261][T16597] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3160.910724][T16597] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3160.916610][T16597] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3160.922335][T16597] genl_rcv_msg+0x627/0xdf0 [ 3160.926822][T16597] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3160.933138][T16597] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 3160.938939][T16597] netlink_rcv_skb+0x15a/0x410 [ 3160.943694][T16597] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3160.950016][T16597] ? netlink_ack+0xa80/0xa80 [ 3160.954612][T16597] genl_rcv+0x24/0x40 [ 3160.958573][T16597] netlink_unicast+0x537/0x740 [ 3160.963337][T16597] ? netlink_attachskb+0x810/0x810 [ 3160.968449][T16597] ? _copy_from_iter_full+0x25c/0x870 [ 3160.973810][T16597] ? __phys_addr_symbol+0x2c/0x70 [ 3160.978836][T16597] ? __check_object_size+0x171/0x437 [ 3160.984117][T16597] netlink_sendmsg+0x882/0xe10 [ 3160.988862][T16597] ? aa_af_perm+0x260/0x260 [ 3160.993363][T16597] ? netlink_unicast+0x740/0x740 [ 3160.998284][T16597] ? netlink_unicast+0x740/0x740 [ 3161.003214][T16597] sock_sendmsg+0xcf/0x120 [ 3161.007630][T16597] ____sys_sendmsg+0x6b9/0x7d0 [ 3161.012381][T16597] ? kernel_sendmsg+0x50/0x50 [ 3161.017041][T16597] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3161.022504][T16597] ___sys_sendmsg+0x100/0x170 [ 3161.027207][T16597] ? retint_kernel+0x2b/0x2b [ 3161.031783][T16597] ? sendmsg_copy_msghdr+0x70/0x70 [ 3161.036923][T16597] ? __fget_files+0x329/0x4f0 [ 3161.041590][T16597] ? ksys_dup3+0x3c0/0x3c0 [ 3161.045989][T16597] ? lock_acquire+0x197/0x420 [ 3161.050644][T16597] ? __might_fault+0xef/0x1d0 [ 3161.055303][T16597] ? __fget_light+0x208/0x270 [ 3161.059982][T16597] __sys_sendmsg+0xec/0x1b0 [ 3161.064489][T16597] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3161.069503][T16597] ? __x64_sys_futex+0x380/0x4f0 [ 3161.074520][T16597] ? trace_hardirqs_off_caller+0x55/0x230 [ 3161.080248][T16597] ? do_syscall_64+0x21/0x7d0 [ 3161.084959][T16597] do_syscall_64+0xf6/0x7d0 [ 3161.089458][T16597] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3161.095373][T16597] RIP: 0033:0x45c849 [ 3161.099257][T16597] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3161.118865][T16597] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3161.127260][T16597] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3161.135229][T16597] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3161.143215][T16597] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3161.151195][T16597] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3161.159167][T16597] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:45:08 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60610011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3161.182369][T16599] netlink: 18350 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3161.198047][T16599] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3161.198047][T16599] !' [ 3161.208213][T16599] CPU: 1 PID: 16599 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3161.216905][T16599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3161.226969][T16599] Call Trace: [ 3161.230268][T16599] dump_stack+0x188/0x20d [ 3161.234609][T16599] sysfs_warn_dup.cold+0x1c/0x2d [ 3161.239552][T16599] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3161.245634][T16599] sysfs_create_link+0x61/0xc0 [ 3161.250410][T16599] device_add+0x71c/0x1bc0 [ 3161.254843][T16599] ? uevent_show+0x360/0x360 [ 3161.259445][T16599] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3161.265444][T16599] wiphy_register+0x1c46/0x2720 [ 3161.270315][T16599] ? wiphy_unregister+0xf90/0xf90 [ 3161.275351][T16599] ? __kmalloc+0x629/0x7a0 [ 3161.279778][T16599] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3161.285338][T16599] ieee80211_register_hw+0x13d4/0x36a0 [ 3161.290795][T16599] ? __debug_object_init+0x4a1/0xe20 [ 3161.296085][T16599] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3161.301537][T16599] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3161.307074][T16599] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3161.313055][T16599] ? memset+0x20/0x40 [ 3161.317047][T16599] ? __hrtimer_init+0x134/0x260 [ 3161.321905][T16599] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3161.327609][T16599] ? vprintk_func+0x81/0x17e [ 3161.332189][T16599] ? hwsim_register_received_nl+0x400/0x400 [ 3161.338070][T16599] hwsim_new_radio_nl+0x905/0xf60 [ 3161.343088][T16599] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3161.349027][T16599] ? cap_capable+0x1eb/0x250 [ 3161.353717][T16599] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3161.360034][T16599] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3161.366347][T16599] genl_rcv_msg+0x627/0xdf0 [ 3161.370836][T16599] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3161.377185][T16599] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3161.382461][T16599] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3161.388039][T16599] netlink_rcv_skb+0x15a/0x410 [ 3161.392843][T16599] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3161.399191][T16599] ? netlink_ack+0xa80/0xa80 [ 3161.403871][T16599] genl_rcv+0x24/0x40 [ 3161.407846][T16599] netlink_unicast+0x537/0x740 [ 3161.412594][T16599] ? netlink_attachskb+0x810/0x810 [ 3161.417689][T16599] ? _copy_from_iter_full+0x25c/0x870 [ 3161.423043][T16599] ? __phys_addr_symbol+0x2c/0x70 [ 3161.428046][T16599] ? __check_object_size+0x171/0x437 [ 3161.433317][T16599] netlink_sendmsg+0x882/0xe10 [ 3161.438067][T16599] ? aa_af_perm+0x260/0x260 [ 3161.442549][T16599] ? netlink_unicast+0x740/0x740 [ 3161.447473][T16599] ? netlink_unicast+0x740/0x740 [ 3161.452391][T16599] sock_sendmsg+0xcf/0x120 [ 3161.456789][T16599] ____sys_sendmsg+0x6b9/0x7d0 [ 3161.461534][T16599] ? kernel_sendmsg+0x50/0x50 [ 3161.466197][T16599] ___sys_sendmsg+0x100/0x170 [ 3161.470853][T16599] ? sendmsg_copy_msghdr+0x70/0x70 [ 3161.475979][T16599] ? __fget_files+0x329/0x4f0 [ 3161.480642][T16599] ? ksys_dup3+0x3c0/0x3c0 [ 3161.485035][T16599] ? lock_acquire+0x197/0x420 [ 3161.489689][T16599] ? __might_fault+0xef/0x1d0 [ 3161.494354][T16599] ? __fget_light+0x208/0x270 [ 3161.499024][T16599] __sys_sendmsg+0xec/0x1b0 [ 3161.503527][T16599] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3161.508548][T16599] ? __x64_sys_futex+0x380/0x4f0 [ 3161.513479][T16599] ? trace_hardirqs_off_caller+0x55/0x230 [ 3161.519191][T16599] ? do_syscall_64+0x21/0x7d0 [ 3161.523861][T16599] do_syscall_64+0xf6/0x7d0 [ 3161.528350][T16599] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3161.534219][T16599] RIP: 0033:0x45c849 [ 3161.538092][T16599] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3161.557681][T16599] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3161.566085][T16599] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3161.574044][T16599] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3161.582015][T16599] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3161.590026][T16599] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3161.597992][T16599] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3161.618412][T16603] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.5'. 23:45:08 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc606c0011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3161.630927][T16603] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3161.630927][T16603] !' [ 3161.656234][T16603] CPU: 1 PID: 16603 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3161.664947][T16603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3161.675046][T16603] Call Trace: [ 3161.678349][T16603] dump_stack+0x188/0x20d [ 3161.682794][T16603] sysfs_warn_dup.cold+0x1c/0x2d [ 3161.687755][T16603] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3161.693838][T16603] sysfs_create_link+0x61/0xc0 [ 3161.698608][T16603] device_add+0x71c/0x1bc0 [ 3161.703021][T16603] ? uevent_show+0x360/0x360 [ 3161.707649][T16603] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3161.713625][T16603] wiphy_register+0x1c46/0x2720 [ 3161.718471][T16603] ? wiphy_unregister+0xf90/0xf90 [ 3161.723492][T16603] ? __kmalloc+0x629/0x7a0 [ 3161.727894][T16603] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3161.733436][T16603] ieee80211_register_hw+0x13d4/0x36a0 [ 3161.738896][T16603] ? __debug_object_init+0x4a1/0xe20 [ 3161.744179][T16603] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3161.749641][T16603] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3161.755209][T16603] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3161.761205][T16603] ? memset+0x20/0x40 [ 3161.765197][T16603] ? __hrtimer_init+0x134/0x260 [ 3161.770094][T16603] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3161.775827][T16603] ? vprintk_func+0x81/0x17e [ 3161.780448][T16603] ? hwsim_register_received_nl+0x400/0x400 [ 3161.786354][T16603] hwsim_new_radio_nl+0x905/0xf60 [ 3161.791385][T16603] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3161.797291][T16603] ? cap_capable+0x1eb/0x250 [ 3161.801910][T16603] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3161.808250][T16603] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3161.814598][T16603] genl_rcv_msg+0x627/0xdf0 [ 3161.819171][T16603] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3161.825494][T16603] ? retint_kernel+0x2b/0x2b [ 3161.830073][T16603] netlink_rcv_skb+0x15a/0x410 [ 3161.834818][T16603] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3161.841148][T16603] ? netlink_ack+0xa80/0xa80 [ 3161.845734][T16603] genl_rcv+0x24/0x40 [ 3161.849711][T16603] netlink_unicast+0x537/0x740 [ 3161.854461][T16603] ? netlink_attachskb+0x810/0x810 [ 3161.859550][T16603] ? _copy_from_iter_full+0x25c/0x870 [ 3161.864899][T16603] ? __phys_addr_symbol+0x2c/0x70 [ 3161.869916][T16603] ? __check_object_size+0x171/0x437 [ 3161.875188][T16603] netlink_sendmsg+0x882/0xe10 [ 3161.879953][T16603] ? aa_af_perm+0x260/0x260 [ 3161.884443][T16603] ? netlink_unicast+0x740/0x740 [ 3161.889362][T16603] ? netlink_unicast+0x740/0x740 [ 3161.894285][T16603] sock_sendmsg+0xcf/0x120 [ 3161.898683][T16603] ____sys_sendmsg+0x6b9/0x7d0 [ 3161.903429][T16603] ? kernel_sendmsg+0x50/0x50 [ 3161.908089][T16603] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3161.913530][T16603] ___sys_sendmsg+0x100/0x170 [ 3161.918191][T16603] ? retint_kernel+0x2b/0x2b [ 3161.922789][T16603] ? sendmsg_copy_msghdr+0x70/0x70 [ 3161.927888][T16603] ? __fget_files+0x329/0x4f0 [ 3161.932637][T16603] ? ksys_dup3+0x3c0/0x3c0 [ 3161.937030][T16603] ? lock_acquire+0x197/0x420 [ 3161.941683][T16603] ? __might_fault+0xef/0x1d0 [ 3161.946340][T16603] ? __fget_light+0x208/0x270 [ 3161.951011][T16603] __sys_sendmsg+0xec/0x1b0 [ 3161.955497][T16603] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3161.960502][T16603] ? __x64_sys_futex+0x380/0x4f0 [ 3161.965423][T16603] ? trace_hardirqs_off_caller+0x55/0x230 [ 3161.971129][T16603] ? do_syscall_64+0x21/0x7d0 [ 3161.975800][T16603] do_syscall_64+0xf6/0x7d0 [ 3161.980305][T16603] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3161.986176][T16603] RIP: 0033:0x45c849 [ 3161.990060][T16603] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3162.009736][T16603] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3162.018135][T16603] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3162.026089][T16603] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3162.034088][T16603] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3162.042085][T16603] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3162.050041][T16603] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3162.069917][T16608] netlink: 18358 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3162.100235][T16608] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3162.100235][T16608] !' [ 3162.110586][T16608] CPU: 0 PID: 16608 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3162.119252][T16608] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3162.129307][T16608] Call Trace: [ 3162.132596][T16608] dump_stack+0x188/0x20d [ 3162.136914][T16608] sysfs_warn_dup.cold+0x1c/0x2d [ 3162.141838][T16608] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3162.147917][T16608] sysfs_create_link+0x61/0xc0 [ 3162.152671][T16608] device_add+0x71c/0x1bc0 [ 3162.157087][T16608] ? __sanitizer_cov_trace_switch+0x32/0x70 [ 3162.163012][T16608] ? uevent_show+0x360/0x360 [ 3162.167616][T16608] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3162.173612][T16608] wiphy_register+0x1c46/0x2720 [ 3162.178480][T16608] ? wiphy_unregister+0xf90/0xf90 [ 3162.183500][T16608] ? retint_kernel+0x2b/0x2b [ 3162.188096][T16608] ? ieee80211_register_hw+0xf75/0x36a0 [ 3162.193637][T16608] ieee80211_register_hw+0x13d4/0x36a0 [ 3162.199084][T16608] ? __debug_object_init+0x4a1/0xe20 [ 3162.204359][T16608] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3162.209805][T16608] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3162.215337][T16608] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3162.221301][T16608] ? memset+0x20/0x40 [ 3162.225265][T16608] ? __hrtimer_init+0x134/0x260 [ 3162.230104][T16608] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3162.235819][T16608] ? hwsim_register_received_nl+0x400/0x400 [ 3162.241704][T16608] hwsim_new_radio_nl+0x905/0xf60 [ 3162.246712][T16608] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3162.251981][T16608] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3162.257875][T16608] genl_rcv_msg+0x627/0xdf0 [ 3162.262366][T16608] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3162.268672][T16608] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3162.273952][T16608] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3162.279406][T16608] ? netlink_rcv_skb+0xb1/0x410 [ 3162.284245][T16608] netlink_rcv_skb+0x15a/0x410 [ 3162.288992][T16608] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3162.295314][T16608] ? netlink_ack+0xa80/0xa80 [ 3162.299898][T16608] genl_rcv+0x24/0x40 [ 3162.303863][T16608] netlink_unicast+0x537/0x740 [ 3162.308622][T16608] ? netlink_attachskb+0x810/0x810 [ 3162.313716][T16608] ? _copy_from_iter_full+0x25c/0x870 [ 3162.319068][T16608] ? __phys_addr_symbol+0x2c/0x70 [ 3162.324075][T16608] ? __check_object_size+0x171/0x437 [ 3162.329345][T16608] netlink_sendmsg+0x882/0xe10 [ 3162.334108][T16608] ? aa_af_perm+0x260/0x260 [ 3162.338592][T16608] ? netlink_unicast+0x740/0x740 [ 3162.343521][T16608] ? netlink_unicast+0x740/0x740 [ 3162.348442][T16608] sock_sendmsg+0xcf/0x120 [ 3162.352846][T16608] ____sys_sendmsg+0x6b9/0x7d0 [ 3162.357596][T16608] ? kernel_sendmsg+0x50/0x50 [ 3162.362292][T16608] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3162.367781][T16608] ___sys_sendmsg+0x100/0x170 [ 3162.372634][T16608] ? sendmsg_copy_msghdr+0x70/0x70 [ 3162.377741][T16608] ? __fget_files+0x329/0x4f0 [ 3162.382415][T16608] ? ksys_dup3+0x3c0/0x3c0 [ 3162.386828][T16608] ? lock_acquire+0x197/0x420 [ 3162.391507][T16608] ? __might_fault+0xef/0x1d0 [ 3162.396175][T16608] ? __fget_light+0x208/0x270 [ 3162.400844][T16608] __sys_sendmsg+0xec/0x1b0 [ 3162.405333][T16608] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3162.410340][T16608] ? __x64_sys_futex+0x380/0x4f0 [ 3162.415270][T16608] ? trace_hardirqs_off_caller+0x55/0x230 [ 3162.420978][T16608] ? do_syscall_64+0x21/0x7d0 [ 3162.425639][T16608] do_syscall_64+0xf6/0x7d0 [ 3162.430132][T16608] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3162.436005][T16608] RIP: 0033:0x45c849 [ 3162.439883][T16608] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3162.459478][T16608] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3162.467887][T16608] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3162.475841][T16608] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3162.483812][T16608] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3162.491766][T16608] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3162.499719][T16608] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:45:11 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:45:11 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60710011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3164.683282][T16622] netlink: 18342 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3164.694165][T16622] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3164.694165][T16622] !' [ 3164.704441][T16622] CPU: 1 PID: 16622 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3164.713118][T16622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3164.723158][T16622] Call Trace: [ 3164.726440][T16622] dump_stack+0x188/0x20d [ 3164.730776][T16622] sysfs_warn_dup.cold+0x1c/0x2d [ 3164.735716][T16622] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3164.741786][T16622] sysfs_create_link+0x61/0xc0 [ 3164.746546][T16622] device_add+0x71c/0x1bc0 [ 3164.750961][T16622] ? uevent_show+0x360/0x360 [ 3164.755595][T16622] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3164.761582][T16622] wiphy_register+0x1c46/0x2720 [ 3164.766476][T16622] ? wiphy_unregister+0xf90/0xf90 [ 3164.771528][T16622] ? __kmalloc+0x629/0x7a0 [ 3164.775930][T16622] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3164.781479][T16622] ieee80211_register_hw+0x13d4/0x36a0 [ 3164.786969][T16622] ? __debug_object_init+0x4a1/0xe20 [ 3164.792268][T16622] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3164.797728][T16622] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3164.803276][T16622] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3164.809240][T16622] ? memset+0x20/0x40 [ 3164.813215][T16622] ? __hrtimer_init+0x134/0x260 [ 3164.818052][T16622] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3164.823775][T16622] ? vprintk_func+0x81/0x17e [ 3164.828363][T16622] ? hwsim_register_received_nl+0x400/0x400 [ 3164.834250][T16622] hwsim_new_radio_nl+0x905/0xf60 [ 3164.839326][T16622] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3164.845262][T16622] ? cap_capable+0x1eb/0x250 [ 3164.849856][T16622] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3164.856306][T16622] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3164.862638][T16622] genl_rcv_msg+0x627/0xdf0 [ 3164.867141][T16622] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3164.873461][T16622] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 3164.879254][T16622] netlink_rcv_skb+0x15a/0x410 [ 3164.884010][T16622] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3164.890337][T16622] ? netlink_ack+0xa80/0xa80 [ 3164.894927][T16622] genl_rcv+0x24/0x40 [ 3164.898904][T16622] netlink_unicast+0x537/0x740 [ 3164.903659][T16622] ? netlink_attachskb+0x810/0x810 [ 3164.908751][T16622] ? _copy_from_iter_full+0x25c/0x870 [ 3164.914104][T16622] ? __phys_addr_symbol+0x2c/0x70 [ 3164.919111][T16622] ? __check_object_size+0x171/0x437 [ 3164.924400][T16622] netlink_sendmsg+0x882/0xe10 [ 3164.929160][T16622] ? aa_af_perm+0x260/0x260 [ 3164.933659][T16622] ? netlink_unicast+0x740/0x740 [ 3164.938614][T16622] ? netlink_unicast+0x740/0x740 [ 3164.943554][T16622] sock_sendmsg+0xcf/0x120 [ 3164.947958][T16622] ____sys_sendmsg+0x6b9/0x7d0 [ 3164.952716][T16622] ? kernel_sendmsg+0x50/0x50 [ 3164.957385][T16622] ? mark_lock+0xbc/0x1220 [ 3164.961809][T16622] ___sys_sendmsg+0x100/0x170 [ 3164.966488][T16622] ? sendmsg_copy_msghdr+0x70/0x70 [ 3164.971588][T16622] ? __fget_files+0x329/0x4f0 [ 3164.976249][T16622] ? ksys_dup3+0x3c0/0x3c0 [ 3164.980653][T16622] ? lock_acquire+0x197/0x420 [ 3164.985318][T16622] ? __might_fault+0xef/0x1d0 [ 3164.989994][T16622] ? __fget_light+0x208/0x270 [ 3164.994664][T16622] __sys_sendmsg+0xec/0x1b0 [ 3164.999151][T16622] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3165.004158][T16622] ? __x64_sys_futex+0x380/0x4f0 [ 3165.009180][T16622] ? trace_hardirqs_off_caller+0x55/0x230 [ 3165.014890][T16622] ? do_syscall_64+0x21/0x7d0 [ 3165.019565][T16622] do_syscall_64+0xf6/0x7d0 [ 3165.024069][T16622] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3165.029965][T16622] RIP: 0033:0x45c849 [ 3165.033890][T16622] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3165.053491][T16622] RSP: 002b:00007fce66789c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3165.061939][T16622] RAX: ffffffffffffffda RBX: 00007fce6678a6d4 RCX: 000000000045c849 [ 3165.069919][T16622] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3165.077890][T16622] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3165.085853][T16622] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3165.093807][T16622] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac 23:45:26 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024006105d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:45:26 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:45:26 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60000611400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:45:26 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:45:26 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2a48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:45:26 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024680705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3179.214489][T16630] netlink: 16922 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3179.241768][T16630] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3179.241768][T16630] !' [ 3179.255531][T16630] CPU: 0 PID: 16630 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3179.264259][T16630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3179.274316][T16630] Call Trace: [ 3179.277605][T16630] dump_stack+0x188/0x20d [ 3179.281932][T16630] sysfs_warn_dup.cold+0x1c/0x2d [ 3179.286868][T16630] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3179.292973][T16630] sysfs_create_link+0x61/0xc0 [ 3179.297764][T16630] device_add+0x71c/0x1bc0 [ 3179.302174][T16630] ? retint_kernel+0x2b/0x2b [ 3179.306768][T16630] ? uevent_show+0x360/0x360 [ 3179.311369][T16630] wiphy_register+0x1c46/0x2720 [ 3179.316216][T16630] ? wiphy_unregister+0xf90/0xf90 [ 3179.321241][T16630] ? __kmalloc+0x629/0x7a0 [ 3179.325661][T16630] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3179.331223][T16630] ? ieee80211_register_hw+0x1d80/0x36a0 [ 3179.336850][T16630] ieee80211_register_hw+0x13d4/0x36a0 [ 3179.342306][T16630] ? lockdep_hardirqs_on+0x381/0x5d0 [ 3179.347588][T16630] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3179.353027][T16630] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3179.358609][T16630] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3179.364571][T16630] ? hrtimer_init+0x86/0x320 [ 3179.369179][T16630] ? memset+0x20/0x40 [ 3179.373171][T16630] ? __hrtimer_init+0x134/0x260 [ 3179.378035][T16630] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3179.383792][T16630] ? vprintk_func+0x81/0x17e [ 3179.388374][T16630] ? hwsim_register_received_nl+0x400/0x400 [ 3179.394309][T16630] hwsim_new_radio_nl+0x905/0xf60 [ 3179.399324][T16630] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3179.404650][T16630] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3179.410531][T16630] genl_rcv_msg+0x627/0xdf0 [ 3179.415017][T16630] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3179.421332][T16630] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3179.426597][T16630] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3179.432043][T16630] netlink_rcv_skb+0x15a/0x410 [ 3179.436796][T16630] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3179.443104][T16630] ? netlink_ack+0xa80/0xa80 [ 3179.447695][T16630] genl_rcv+0x24/0x40 [ 3179.451657][T16630] netlink_unicast+0x537/0x740 [ 3179.456408][T16630] ? netlink_attachskb+0x810/0x810 [ 3179.461500][T16630] ? _copy_from_iter_full+0x25c/0x870 [ 3179.466849][T16630] ? __phys_addr_symbol+0x2c/0x70 [ 3179.471855][T16630] ? __check_object_size+0x171/0x437 [ 3179.477132][T16630] netlink_sendmsg+0x882/0xe10 [ 3179.481879][T16630] ? aa_af_perm+0x260/0x260 [ 3179.486377][T16630] ? netlink_unicast+0x740/0x740 [ 3179.491303][T16630] ? netlink_unicast+0x740/0x740 [ 3179.496232][T16630] sock_sendmsg+0xcf/0x120 [ 3179.500649][T16630] ____sys_sendmsg+0x6b9/0x7d0 [ 3179.505401][T16630] ? kernel_sendmsg+0x50/0x50 [ 3179.510072][T16630] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3179.515523][T16630] ___sys_sendmsg+0x100/0x170 [ 3179.520189][T16630] ? retint_kernel+0x2b/0x2b [ 3179.524770][T16630] ? sendmsg_copy_msghdr+0x70/0x70 [ 3179.529873][T16630] ? __fget_files+0x30c/0x4f0 [ 3179.534557][T16630] ? __fget_files+0x329/0x4f0 [ 3179.539234][T16630] ? ksys_dup3+0x3c0/0x3c0 [ 3179.543651][T16630] ? lock_acquire+0x213/0x420 [ 3179.548374][T16630] ? __fget_light+0x208/0x270 [ 3179.553047][T16630] __sys_sendmsg+0xec/0x1b0 [ 3179.557537][T16630] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3179.562627][T16630] ? __x64_sys_futex+0x380/0x4f0 [ 3179.567572][T16630] ? trace_hardirqs_off_caller+0x55/0x230 [ 3179.573328][T16630] ? do_syscall_64+0x21/0x7d0 [ 3179.577986][T16630] do_syscall_64+0xf6/0x7d0 [ 3179.582495][T16630] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3179.588417][T16630] RIP: 0033:0x45c849 [ 3179.592327][T16630] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3179.611936][T16630] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3179.620360][T16630] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3179.628354][T16630] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3179.636305][T16630] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3179.644256][T16630] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3179.652221][T16630] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3179.674128][T16633] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3179.695136][T16633] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3179.695136][T16633] !' [ 3179.705357][T16633] CPU: 0 PID: 16633 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3179.714035][T16633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3179.724079][T16633] Call Trace: [ 3179.727356][T16633] dump_stack+0x188/0x20d [ 3179.731674][T16633] sysfs_warn_dup.cold+0x1c/0x2d [ 3179.736605][T16633] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3179.742669][T16633] sysfs_create_link+0x61/0xc0 [ 3179.747417][T16633] device_add+0x71c/0x1bc0 [ 3179.751821][T16633] ? uevent_show+0x360/0x360 [ 3179.756398][T16633] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3179.762363][T16633] wiphy_register+0x1c46/0x2720 [ 3179.767213][T16633] ? wiphy_unregister+0xf90/0xf90 [ 3179.772225][T16633] ? __kmalloc+0x629/0x7a0 [ 3179.776624][T16633] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3179.782156][T16633] ? ieee80211_register_hw+0xafd/0x36a0 [ 3179.787689][T16633] ieee80211_register_hw+0x13d4/0x36a0 [ 3179.793148][T16633] ? calibrate_delay.cold+0x3db/0x3f6 [ 3179.798527][T16633] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3179.803975][T16633] ? retint_kernel+0x2b/0x2b [ 3179.808567][T16633] ? __hrtimer_init+0x134/0x260 [ 3179.813422][T16633] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3179.819132][T16633] ? vprintk_func+0x81/0x17e [ 3179.823721][T16633] ? hwsim_register_received_nl+0x400/0x400 [ 3179.829604][T16633] hwsim_new_radio_nl+0x905/0xf60 [ 3179.834616][T16633] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3179.839889][T16633] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3179.845774][T16633] genl_rcv_msg+0x627/0xdf0 [ 3179.850268][T16633] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3179.856616][T16633] netlink_rcv_skb+0x15a/0x410 [ 3179.861373][T16633] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3179.867701][T16633] ? netlink_ack+0xa80/0xa80 [ 3179.872288][T16633] genl_rcv+0x24/0x40 [ 3179.876285][T16633] netlink_unicast+0x537/0x740 [ 3179.881042][T16633] ? netlink_attachskb+0x810/0x810 [ 3179.886133][T16633] ? _copy_from_iter_full+0x25c/0x870 [ 3179.891493][T16633] ? __phys_addr_symbol+0x2c/0x70 [ 3179.896501][T16633] ? __check_object_size+0x171/0x437 [ 3179.901771][T16633] netlink_sendmsg+0x882/0xe10 [ 3179.906533][T16633] ? netlink_unicast+0x740/0x740 [ 3179.911456][T16633] ? __sanitizer_cov_trace_pc+0x44/0x50 [ 3179.916988][T16633] ? netlink_unicast+0x740/0x740 [ 3179.921909][T16633] sock_sendmsg+0xcf/0x120 [ 3179.926336][T16633] ____sys_sendmsg+0x6b9/0x7d0 [ 3179.931095][T16633] ? kernel_sendmsg+0x50/0x50 [ 3179.935786][T16633] ? mark_lock+0xbc/0x1220 [ 3179.940208][T16633] ___sys_sendmsg+0x100/0x170 [ 3179.944890][T16633] ? sendmsg_copy_msghdr+0x70/0x70 [ 3179.949997][T16633] ? __fget_files+0x329/0x4f0 [ 3179.954678][T16633] ? ksys_dup3+0x3c0/0x3c0 [ 3179.959086][T16633] ? lock_acquire+0x197/0x420 [ 3179.963753][T16633] ? __might_fault+0xef/0x1d0 [ 3179.968420][T16633] ? __fget_light+0x208/0x270 [ 3179.973087][T16633] __sys_sendmsg+0xec/0x1b0 [ 3179.977575][T16633] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3179.982587][T16633] ? __x64_sys_futex+0x380/0x4f0 [ 3179.987517][T16633] ? trace_hardirqs_off_caller+0x55/0x230 [ 3179.993655][T16633] ? do_syscall_64+0x21/0x7d0 [ 3179.998317][T16633] do_syscall_64+0xf6/0x7d0 [ 3180.002812][T16633] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3180.008699][T16633] RIP: 0033:0x45c849 [ 3180.012596][T16633] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3180.032197][T16633] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3180.040598][T16633] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3180.048566][T16633] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3180.056519][T16633] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3180.064470][T16633] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3180.072423][T16633] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3180.100148][T16632] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3180.125145][T16632] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3180.125145][T16632] !' [ 3180.139507][T16632] CPU: 1 PID: 16632 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3180.148209][T16632] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3180.158263][T16632] Call Trace: [ 3180.161555][T16632] dump_stack+0x188/0x20d [ 3180.165881][T16632] sysfs_warn_dup.cold+0x1c/0x2d [ 3180.170817][T16632] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3180.176938][T16632] sysfs_create_link+0x61/0xc0 [ 3180.181709][T16632] device_add+0x71c/0x1bc0 [ 3180.186119][T16632] ? uevent_show+0x360/0x360 [ 3180.190705][T16632] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3180.196714][T16632] wiphy_register+0x1c46/0x2720 [ 3180.201564][T16632] ? wiphy_unregister+0xf90/0xf90 [ 3180.206590][T16632] ? __kmalloc+0x629/0x7a0 [ 3180.211004][T16632] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3180.216542][T16632] ieee80211_register_hw+0x13d4/0x36a0 [ 3180.221998][T16632] ? __debug_object_init+0x4a1/0xe20 [ 3180.227319][T16632] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3180.232779][T16632] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3180.238318][T16632] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3180.244317][T16632] ? memset+0x20/0x40 [ 3180.248322][T16632] ? __hrtimer_init+0x134/0x260 [ 3180.253158][T16632] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3180.258854][T16632] ? vprintk_func+0x81/0x17e [ 3180.263430][T16632] ? hwsim_register_received_nl+0x400/0x400 [ 3180.269324][T16632] hwsim_new_radio_nl+0x905/0xf60 [ 3180.274344][T16632] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3180.280240][T16632] ? cap_capable+0x1eb/0x250 [ 3180.284837][T16632] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3180.291161][T16632] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3180.297479][T16632] genl_rcv_msg+0x627/0xdf0 [ 3180.301988][T16632] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3180.308315][T16632] ? mark_held_locks+0x9f/0xe0 [ 3180.313251][T16632] netlink_rcv_skb+0x15a/0x410 [ 3180.318030][T16632] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3180.324345][T16632] ? netlink_ack+0xa80/0xa80 [ 3180.328929][T16632] ? retint_kernel+0x2b/0x2b [ 3180.333640][T16632] ? down_read+0x110/0x420 [ 3180.338037][T16632] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3180.344348][T16632] genl_rcv+0x24/0x40 [ 3180.348310][T16632] netlink_unicast+0x537/0x740 [ 3180.353147][T16632] ? netlink_attachskb+0x810/0x810 [ 3180.358249][T16632] ? _copy_from_iter_full+0x25c/0x870 [ 3180.363614][T16632] ? __phys_addr_symbol+0x2c/0x70 [ 3180.368680][T16632] ? __check_object_size+0x171/0x437 [ 3180.373967][T16632] netlink_sendmsg+0x882/0xe10 [ 3180.378717][T16632] ? aa_af_perm+0x260/0x260 [ 3180.383205][T16632] ? netlink_unicast+0x740/0x740 [ 3180.388176][T16632] ? netlink_unicast+0x740/0x740 [ 3180.393101][T16632] sock_sendmsg+0xcf/0x120 [ 3180.397500][T16632] ____sys_sendmsg+0x6b9/0x7d0 [ 3180.402261][T16632] ? kernel_sendmsg+0x50/0x50 [ 3180.406927][T16632] ? mark_lock+0xbc/0x1220 [ 3180.411325][T16632] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3180.416762][T16632] ___sys_sendmsg+0x100/0x170 [ 3180.421524][T16632] ? sendmsg_copy_msghdr+0x70/0x70 [ 3180.426629][T16632] ? __fget_files+0x329/0x4f0 [ 3180.431291][T16632] ? ksys_dup3+0x3c0/0x3c0 [ 3180.435683][T16632] ? lock_acquire+0x197/0x420 [ 3180.440348][T16632] ? __might_fault+0xef/0x1d0 [ 3180.445018][T16632] ? __fget_light+0x208/0x270 [ 3180.449689][T16632] __sys_sendmsg+0xec/0x1b0 [ 3180.454202][T16632] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3180.459203][T16632] ? __x64_sys_futex+0x380/0x4f0 [ 3180.464144][T16632] ? trace_hardirqs_off_caller+0x55/0x230 [ 3180.469864][T16632] ? do_syscall_64+0x21/0x7d0 [ 3180.474530][T16632] do_syscall_64+0xf6/0x7d0 [ 3180.479014][T16632] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3180.484882][T16632] RIP: 0033:0x45c849 [ 3180.488754][T16632] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3180.508524][T16632] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3180.516915][T16632] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3180.524880][T16632] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3180.532831][T16632] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3180.540790][T16632] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff 23:45:27 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2348000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:45:27 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0a48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3180.548763][T16632] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3180.611842][T16637] netlink: 18406 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3180.654301][T16637] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3180.654301][T16637] !' [ 3180.665888][T16637] CPU: 1 PID: 16637 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3180.674636][T16637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3180.684697][T16637] Call Trace: [ 3180.687977][T16637] dump_stack+0x188/0x20d [ 3180.692301][T16637] sysfs_warn_dup.cold+0x1c/0x2d [ 3180.697226][T16637] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3180.703282][T16637] sysfs_create_link+0x61/0xc0 [ 3180.708026][T16637] device_add+0x71c/0x1bc0 [ 3180.712445][T16637] ? uevent_show+0x360/0x360 [ 3180.717029][T16637] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3180.723048][T16637] wiphy_register+0x1c46/0x2720 [ 3180.727887][T16637] ? wiphy_unregister+0xf90/0xf90 [ 3180.732898][T16637] ? __kmalloc+0x629/0x7a0 [ 3180.737294][T16637] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3180.742835][T16637] ? ieee80211_register_hw+0x8c2/0x36a0 [ 3180.748376][T16637] ieee80211_register_hw+0x13d4/0x36a0 [ 3180.753820][T16637] ? calibrate_delay.cold+0x3db/0x3f6 [ 3180.759179][T16637] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3180.764624][T16637] ? __hrtimer_init+0x1e6/0x260 [ 3180.769468][T16637] ? __sanitizer_cov_trace_pc+0x2e/0x50 [ 3180.775033][T16637] ? __hrtimer_init+0x134/0x260 [ 3180.779886][T16637] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3180.785618][T16637] ? vprintk_func+0x81/0x17e [ 3180.790220][T16637] ? hwsim_register_received_nl+0x400/0x400 [ 3180.796108][T16637] hwsim_new_radio_nl+0x905/0xf60 [ 3180.801123][T16637] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3180.806403][T16637] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3180.812284][T16637] genl_rcv_msg+0x627/0xdf0 [ 3180.816771][T16637] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3180.823080][T16637] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3180.828347][T16637] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3180.833800][T16637] netlink_rcv_skb+0x15a/0x410 [ 3180.838545][T16637] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3180.844855][T16637] ? netlink_ack+0xa80/0xa80 [ 3180.849458][T16637] genl_rcv+0x24/0x40 [ 3180.853560][T16637] netlink_unicast+0x537/0x740 [ 3180.858314][T16637] ? netlink_attachskb+0x810/0x810 [ 3180.863421][T16637] ? _copy_from_iter_full+0x25c/0x870 [ 3180.868913][T16637] ? __phys_addr_symbol+0x2c/0x70 [ 3180.873927][T16637] ? __check_object_size+0x171/0x437 [ 3180.879247][T16637] netlink_sendmsg+0x882/0xe10 [ 3180.884013][T16637] ? aa_af_perm+0x260/0x260 [ 3180.888503][T16637] ? netlink_unicast+0x740/0x740 [ 3180.893427][T16637] ? netlink_unicast+0x740/0x740 [ 3180.898349][T16637] sock_sendmsg+0xcf/0x120 [ 3180.902783][T16637] ____sys_sendmsg+0x6b9/0x7d0 [ 3180.907542][T16637] ? kernel_sendmsg+0x50/0x50 [ 3180.912253][T16637] ? mark_lock+0xbc/0x1220 [ 3180.916669][T16637] ___sys_sendmsg+0x100/0x170 [ 3180.921345][T16637] ? sendmsg_copy_msghdr+0x70/0x70 [ 3180.926456][T16637] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3180.931898][T16637] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3180.937218][T16637] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3180.942683][T16637] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3180.948406][T16637] ? retint_kernel+0x2b/0x2b [ 3180.952991][T16637] __sys_sendmsg+0xec/0x1b0 [ 3180.957477][T16637] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3180.962500][T16637] ? __x64_sys_futex+0x380/0x4f0 [ 3180.967454][T16637] ? trace_hardirqs_off_caller+0x55/0x230 [ 3180.973193][T16637] ? do_syscall_64+0x21/0x7d0 [ 3180.977872][T16637] do_syscall_64+0xf6/0x7d0 [ 3180.982384][T16637] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3180.988285][T16637] RIP: 0033:0x45c849 [ 3180.992233][T16637] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3181.011825][T16637] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3181.020240][T16637] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3181.028209][T16637] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3181.036170][T16637] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3181.044144][T16637] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3181.052103][T16637] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3181.067897][T16630] netlink: 16922 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3181.090895][T16630] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3181.090895][T16630] !' [ 3181.102395][T16630] CPU: 1 PID: 16630 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3181.111093][T16630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3181.121148][T16630] Call Trace: [ 3181.124431][T16630] dump_stack+0x188/0x20d [ 3181.128840][T16630] sysfs_warn_dup.cold+0x1c/0x2d [ 3181.133787][T16630] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3181.139854][T16630] sysfs_create_link+0x61/0xc0 [ 3181.144648][T16630] device_add+0x71c/0x1bc0 [ 3181.149057][T16630] ? uevent_show+0x360/0x360 [ 3181.153652][T16630] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3181.159682][T16630] wiphy_register+0x1c46/0x2720 [ 3181.164597][T16630] ? wiphy_unregister+0xf90/0xf90 [ 3181.169641][T16630] ? __kmalloc+0x629/0x7a0 [ 3181.174075][T16630] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3181.179680][T16630] ieee80211_register_hw+0x13d4/0x36a0 [ 3181.185142][T16630] ? __debug_object_init+0x4a1/0xe20 [ 3181.190531][T16630] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3181.196008][T16630] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3181.201564][T16630] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3181.207601][T16630] ? memset+0x20/0x40 [ 3181.211691][T16630] ? __hrtimer_init+0x134/0x260 [ 3181.216598][T16630] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3181.222310][T16630] ? vprintk_func+0x81/0x17e [ 3181.226895][T16630] ? hwsim_register_received_nl+0x400/0x400 [ 3181.232795][T16630] hwsim_new_radio_nl+0x905/0xf60 [ 3181.237922][T16630] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3181.243803][T16630] ? cap_capable+0x1eb/0x250 [ 3181.248381][T16630] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3181.254705][T16630] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3181.261030][T16630] genl_rcv_msg+0x627/0xdf0 [ 3181.265539][T16630] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3181.271877][T16630] ? mark_held_locks+0x9f/0xe0 [ 3181.276643][T16630] netlink_rcv_skb+0x15a/0x410 [ 3181.281392][T16630] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3181.287736][T16630] ? netlink_ack+0xa80/0xa80 [ 3181.292321][T16630] ? retint_kernel+0x2b/0x2b [ 3181.296917][T16630] ? down_read+0x110/0x420 [ 3181.301317][T16630] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3181.307628][T16630] genl_rcv+0x24/0x40 [ 3181.311610][T16630] netlink_unicast+0x537/0x740 [ 3181.316373][T16630] ? netlink_attachskb+0x810/0x810 [ 3181.321511][T16630] ? _copy_from_iter_full+0x25c/0x870 [ 3181.326867][T16630] ? __phys_addr_symbol+0x2c/0x70 [ 3181.331885][T16630] ? __check_object_size+0x171/0x437 [ 3181.337213][T16630] netlink_sendmsg+0x882/0xe10 [ 3181.341975][T16630] ? aa_af_perm+0x260/0x260 [ 3181.346473][T16630] ? netlink_unicast+0x740/0x740 [ 3181.351417][T16630] ? netlink_unicast+0x740/0x740 [ 3181.356391][T16630] sock_sendmsg+0xcf/0x120 [ 3181.360793][T16630] ____sys_sendmsg+0x6b9/0x7d0 [ 3181.365543][T16630] ? kernel_sendmsg+0x50/0x50 [ 3181.370220][T16630] ? sendmsg_copy_msghdr+0x1f/0x70 [ 3181.375376][T16630] ___sys_sendmsg+0x100/0x170 [ 3181.380075][T16630] ? sendmsg_copy_msghdr+0x70/0x70 [ 3181.385182][T16630] ? __fget_files+0x329/0x4f0 [ 3181.389859][T16630] ? ksys_dup3+0x3c0/0x3c0 [ 3181.394276][T16630] ? lock_acquire+0x209/0x420 [ 3181.398950][T16630] ? __fget_light+0x208/0x270 [ 3181.403628][T16630] __sys_sendmsg+0xec/0x1b0 [ 3181.408140][T16630] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3181.413165][T16630] ? __x64_sys_futex+0x380/0x4f0 [ 3181.418116][T16630] ? trace_hardirqs_off_caller+0x55/0x230 [ 3181.423841][T16630] ? do_syscall_64+0x21/0x7d0 [ 3181.428568][T16630] do_syscall_64+0xf6/0x7d0 [ 3181.433084][T16630] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3181.438991][T16630] RIP: 0033:0x45c849 [ 3181.442873][T16630] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3181.462462][T16630] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3181.470882][T16630] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3181.478850][T16630] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3181.486816][T16630] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3181.494785][T16630] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff 23:45:28 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="1400000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3181.502753][T16630] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:45:28 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60000711400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3181.535102][T16638] netlink: 18431 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3181.573274][T16638] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3181.573274][T16638] !' [ 3181.603077][T16638] CPU: 0 PID: 16638 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3181.611810][T16638] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3181.621866][T16638] Call Trace: [ 3181.625147][T16638] dump_stack+0x188/0x20d [ 3181.629468][T16638] sysfs_warn_dup.cold+0x1c/0x2d [ 3181.634449][T16638] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3181.640523][T16638] sysfs_create_link+0x61/0xc0 [ 3181.645340][T16638] device_add+0x71c/0x1bc0 [ 3181.649748][T16638] ? uevent_show+0x360/0x360 [ 3181.654372][T16638] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3181.660354][T16638] wiphy_register+0x1c46/0x2720 [ 3181.665231][T16638] ? wiphy_unregister+0xf90/0xf90 [ 3181.670254][T16638] ? __kmalloc+0x629/0x7a0 [ 3181.674659][T16638] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3181.680193][T16638] ieee80211_register_hw+0x13d4/0x36a0 [ 3181.685646][T16638] ? __debug_object_init+0x4a1/0xe20 [ 3181.690931][T16638] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3181.696381][T16638] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3181.701989][T16638] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3181.707962][T16638] ? memset+0x20/0x40 [ 3181.711947][T16638] ? __hrtimer_init+0x134/0x260 [ 3181.716928][T16638] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3181.722675][T16638] ? vprintk_func+0x81/0x17e [ 3181.727257][T16638] ? hwsim_register_received_nl+0x400/0x400 [ 3181.733137][T16638] hwsim_new_radio_nl+0x905/0xf60 [ 3181.738190][T16638] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3181.744075][T16638] ? cap_capable+0x1eb/0x250 [ 3181.748683][T16638] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3181.755001][T16638] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3181.761315][T16638] genl_rcv_msg+0x627/0xdf0 [ 3181.765839][T16638] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3181.772160][T16638] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3181.777433][T16638] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3181.782897][T16638] netlink_rcv_skb+0x15a/0x410 [ 3181.787658][T16638] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3181.793989][T16638] ? netlink_ack+0xa80/0xa80 [ 3181.798577][T16638] genl_rcv+0x24/0x40 [ 3181.802565][T16638] netlink_unicast+0x537/0x740 [ 3181.807312][T16638] ? netlink_attachskb+0x810/0x810 [ 3181.812398][T16638] ? _copy_from_iter_full+0x25c/0x870 [ 3181.818458][T16638] ? __phys_addr_symbol+0x2c/0x70 [ 3181.823460][T16638] ? __check_object_size+0x171/0x437 [ 3181.828727][T16638] netlink_sendmsg+0x882/0xe10 [ 3181.833473][T16638] ? aa_af_perm+0x260/0x260 [ 3181.837959][T16638] ? netlink_unicast+0x740/0x740 [ 3181.842966][T16638] ? netlink_unicast+0x740/0x740 [ 3181.847902][T16638] sock_sendmsg+0xcf/0x120 [ 3181.852304][T16638] ____sys_sendmsg+0x6b9/0x7d0 [ 3181.857061][T16638] ? kernel_sendmsg+0x50/0x50 [ 3181.861732][T16638] ? mark_lock+0xbc/0x1220 [ 3181.866134][T16638] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3181.871581][T16638] ___sys_sendmsg+0x100/0x170 [ 3181.876269][T16638] ? sendmsg_copy_msghdr+0x70/0x70 [ 3181.881369][T16638] ? __fget_files+0x329/0x4f0 [ 3181.886029][T16638] ? ksys_dup3+0x3c0/0x3c0 [ 3181.890423][T16638] ? lock_acquire+0x197/0x420 [ 3181.895124][T16638] ? __might_fault+0xef/0x1d0 [ 3181.899797][T16638] ? __fget_light+0x208/0x270 [ 3181.904454][T16638] __sys_sendmsg+0xec/0x1b0 [ 3181.908938][T16638] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3181.913953][T16638] ? __x64_sys_futex+0x380/0x4f0 [ 3181.918882][T16638] ? trace_hardirqs_off_caller+0x55/0x230 [ 3181.924595][T16638] ? do_syscall_64+0x21/0x7d0 [ 3181.929264][T16638] do_syscall_64+0xf6/0x7d0 [ 3181.933769][T16638] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3181.939647][T16638] RIP: 0033:0x45c849 [ 3181.943536][T16638] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3181.963174][T16638] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3181.971581][T16638] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3181.979550][T16638] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3181.987526][T16638] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3181.995475][T16638] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3182.003467][T16638] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3182.027434][T16644] netlink: 16666 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3182.041056][T16644] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3182.041056][T16644] !' 23:45:29 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2348000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3182.055251][T16644] CPU: 1 PID: 16644 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3182.063951][T16644] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3182.074011][T16644] Call Trace: [ 3182.077305][T16644] dump_stack+0x188/0x20d [ 3182.081648][T16644] sysfs_warn_dup.cold+0x1c/0x2d [ 3182.086599][T16644] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3182.092709][T16644] sysfs_create_link+0x61/0xc0 [ 3182.097500][T16644] device_add+0x71c/0x1bc0 [ 3182.101941][T16644] ? uevent_show+0x360/0x360 [ 3182.106544][T16644] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3182.112537][T16644] wiphy_register+0x1c46/0x2720 [ 3182.117409][T16644] ? wiphy_unregister+0xf90/0xf90 [ 3182.122444][T16644] ? __kmalloc+0x629/0x7a0 [ 3182.126858][T16644] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3182.132410][T16644] ieee80211_register_hw+0x13d4/0x36a0 [ 3182.137881][T16644] ? __debug_object_init+0x4a1/0xe20 [ 3182.143175][T16644] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3182.148632][T16644] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3182.154178][T16644] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3182.160145][T16644] ? memset+0x20/0x40 [ 3182.164112][T16644] ? __hrtimer_init+0x134/0x260 [ 3182.169104][T16644] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3182.174850][T16644] ? vprintk_func+0x81/0x17e [ 3182.179441][T16644] ? hwsim_register_received_nl+0x400/0x400 [ 3182.185324][T16644] hwsim_new_radio_nl+0x905/0xf60 [ 3182.190336][T16644] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3182.196216][T16644] ? cap_capable+0x1eb/0x250 [ 3182.200791][T16644] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3182.207143][T16644] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3182.213499][T16644] genl_rcv_msg+0x627/0xdf0 [ 3182.217989][T16644] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3182.224364][T16644] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 3182.230666][T16644] netlink_rcv_skb+0x15a/0x410 [ 3182.235417][T16644] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3182.241735][T16644] ? netlink_ack+0xa80/0xa80 [ 3182.246319][T16644] genl_rcv+0x24/0x40 [ 3182.250291][T16644] netlink_unicast+0x537/0x740 [ 3182.255059][T16644] ? netlink_attachskb+0x810/0x810 [ 3182.260157][T16644] ? _copy_from_iter_full+0x25c/0x870 [ 3182.265515][T16644] ? __phys_addr_symbol+0x2c/0x70 [ 3182.270525][T16644] ? __check_object_size+0x171/0x437 [ 3182.275799][T16644] netlink_sendmsg+0x882/0xe10 [ 3182.280594][T16644] ? aa_af_perm+0x260/0x260 [ 3182.285116][T16644] ? netlink_unicast+0x740/0x740 [ 3182.290043][T16644] ? netlink_unicast+0x740/0x740 [ 3182.294961][T16644] sock_sendmsg+0xcf/0x120 [ 3182.299374][T16644] ____sys_sendmsg+0x6b9/0x7d0 [ 3182.304127][T16644] ? kernel_sendmsg+0x50/0x50 [ 3182.308828][T16644] ? mark_lock+0xbc/0x1220 [ 3182.313282][T16644] ___sys_sendmsg+0x100/0x170 [ 3182.317971][T16644] ? sendmsg_copy_msghdr+0x70/0x70 [ 3182.323070][T16644] ? __fget_files+0x329/0x4f0 [ 3182.327728][T16644] ? ksys_dup3+0x3c0/0x3c0 [ 3182.332139][T16644] ? lock_acquire+0x197/0x420 [ 3182.336796][T16644] ? __might_fault+0xef/0x1d0 [ 3182.341455][T16644] ? __fget_light+0x208/0x270 [ 3182.346116][T16644] __sys_sendmsg+0xec/0x1b0 [ 3182.350601][T16644] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3182.355606][T16644] ? __x64_sys_futex+0x380/0x4f0 [ 3182.360529][T16644] ? trace_hardirqs_off_caller+0x55/0x230 [ 3182.366232][T16644] ? do_syscall_64+0x21/0x7d0 [ 3182.370912][T16644] do_syscall_64+0xf6/0x7d0 [ 3182.375426][T16644] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3182.381297][T16644] RIP: 0033:0x45c849 [ 3182.385180][T16644] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3182.404777][T16644] RSP: 002b:00007fce66789c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3182.413172][T16644] RAX: ffffffffffffffda RBX: 00007fce6678a6d4 RCX: 000000000045c849 [ 3182.421130][T16644] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3182.429099][T16644] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3182.437052][T16644] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3182.445004][T16644] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac [ 3182.465630][T16643] netlink: 16666 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3182.482478][T16643] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3182.482478][T16643] !' [ 3182.493641][T16643] CPU: 0 PID: 16643 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3182.502325][T16643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3182.512367][T16643] Call Trace: [ 3182.515714][T16643] dump_stack+0x188/0x20d [ 3182.520089][T16643] sysfs_warn_dup.cold+0x1c/0x2d [ 3182.525016][T16643] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3182.531072][T16643] sysfs_create_link+0x61/0xc0 [ 3182.535818][T16643] device_add+0x71c/0x1bc0 [ 3182.540222][T16643] ? uevent_show+0x360/0x360 [ 3182.544798][T16643] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3182.550760][T16643] wiphy_register+0x1c46/0x2720 [ 3182.555601][T16643] ? wiphy_unregister+0xf90/0xf90 [ 3182.560607][T16643] ? __kmalloc+0x629/0x7a0 [ 3182.565006][T16643] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3182.570535][T16643] ieee80211_register_hw+0x13d4/0x36a0 [ 3182.576023][T16643] ? __debug_object_init+0x4a1/0xe20 [ 3182.581295][T16643] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3182.586750][T16643] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3182.592289][T16643] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3182.598304][T16643] ? memset+0x20/0x40 [ 3182.602268][T16643] ? __hrtimer_init+0x134/0x260 [ 3182.607102][T16643] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3182.612800][T16643] ? vprintk_func+0x81/0x17e [ 3182.617378][T16643] ? hwsim_register_received_nl+0x400/0x400 [ 3182.623254][T16643] hwsim_new_radio_nl+0x905/0xf60 [ 3182.628262][T16643] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3182.634133][T16643] ? security_capable+0x84/0xc0 [ 3182.638969][T16643] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3182.645274][T16643] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3182.651597][T16643] genl_rcv_msg+0x627/0xdf0 [ 3182.656114][T16643] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3182.662440][T16643] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3182.668150][T16643] ? retint_kernel+0x2b/0x2b [ 3182.672725][T16643] ? netlink_rcv_skb+0x264/0x410 [ 3182.677644][T16643] ? memset+0x2a/0x40 [ 3182.681605][T16643] netlink_rcv_skb+0x15a/0x410 [ 3182.686350][T16643] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3182.692668][T16643] ? netlink_ack+0xa80/0xa80 [ 3182.697255][T16643] genl_rcv+0x24/0x40 [ 3182.701221][T16643] netlink_unicast+0x537/0x740 [ 3182.705981][T16643] ? netlink_attachskb+0x810/0x810 [ 3182.711082][T16643] ? _copy_from_iter_full+0x25c/0x870 [ 3182.716440][T16643] ? __phys_addr_symbol+0x2c/0x70 [ 3182.721577][T16643] ? __check_object_size+0x171/0x437 [ 3182.726883][T16643] netlink_sendmsg+0x882/0xe10 [ 3182.731646][T16643] ? aa_af_perm+0x260/0x260 [ 3182.736174][T16643] ? netlink_unicast+0x740/0x740 [ 3182.741111][T16643] ? netlink_unicast+0x740/0x740 [ 3182.746049][T16643] sock_sendmsg+0xcf/0x120 [ 3182.750496][T16643] ____sys_sendmsg+0x6b9/0x7d0 [ 3182.755276][T16643] ? kernel_sendmsg+0x50/0x50 [ 3182.759944][T16643] ? __fget_files+0x307/0x4f0 [ 3182.764622][T16643] ___sys_sendmsg+0x100/0x170 [ 3182.769336][T16643] ? sendmsg_copy_msghdr+0x70/0x70 [ 3182.774444][T16643] ? __fget_files+0x329/0x4f0 [ 3182.779107][T16643] ? ksys_dup3+0x3c0/0x3c0 [ 3182.783541][T16643] ? lock_acquire+0x197/0x420 [ 3182.788201][T16643] ? __might_fault+0xef/0x1d0 [ 3182.792863][T16643] ? __fget_light+0x208/0x270 [ 3182.797555][T16643] __sys_sendmsg+0xec/0x1b0 [ 3182.802044][T16643] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3182.807053][T16643] ? __x64_sys_futex+0x380/0x4f0 [ 3182.812050][T16643] ? trace_hardirqs_off_caller+0x55/0x230 [ 3182.817759][T16643] ? do_syscall_64+0x21/0x7d0 [ 3182.822425][T16643] do_syscall_64+0xf6/0x7d0 [ 3182.826922][T16643] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3182.832801][T16643] RIP: 0033:0x45c849 [ 3182.836681][T16643] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3182.856310][T16643] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e 23:45:30 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc601a4811400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3182.864729][T16643] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3182.872709][T16643] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3182.880695][T16643] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3182.888659][T16643] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3182.896619][T16643] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:45:30 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="1400000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3182.951060][T16648] netlink: 18431 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3182.966013][T16648] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3182.966013][T16648] !' [ 3183.006398][T16648] CPU: 0 PID: 16648 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3183.015114][T16648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3183.025177][T16648] Call Trace: [ 3183.028591][T16648] dump_stack+0x188/0x20d [ 3183.032941][T16648] sysfs_warn_dup.cold+0x1c/0x2d [ 3183.037893][T16648] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3183.043965][T16648] sysfs_create_link+0x61/0xc0 [ 3183.048725][T16648] device_add+0x71c/0x1bc0 [ 3183.053130][T16648] ? uevent_show+0x360/0x360 [ 3183.057705][T16648] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3183.063674][T16648] wiphy_register+0x1c46/0x2720 [ 3183.068510][T16648] ? wiphy_unregister+0xf90/0xf90 [ 3183.073518][T16648] ? __kmalloc+0x629/0x7a0 [ 3183.077928][T16648] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3183.083473][T16648] ieee80211_register_hw+0x13d4/0x36a0 [ 3183.088930][T16648] ? __debug_object_init+0x4a1/0xe20 [ 3183.094208][T16648] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3183.099657][T16648] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3183.105193][T16648] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3183.111161][T16648] ? memset+0x20/0x40 [ 3183.115194][T16648] ? __hrtimer_init+0x134/0x260 [ 3183.120037][T16648] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3183.125749][T16648] ? vprintk_func+0x81/0x17e [ 3183.130452][T16648] ? hwsim_register_received_nl+0x400/0x400 [ 3183.136390][T16648] hwsim_new_radio_nl+0x905/0xf60 [ 3183.141414][T16648] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3183.147316][T16648] ? cap_capable+0x1eb/0x250 [ 3183.151919][T16648] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3183.158244][T16648] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3183.164567][T16648] genl_rcv_msg+0x627/0xdf0 [ 3183.169068][T16648] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3183.175390][T16648] ? retint_kernel+0x2b/0x2b [ 3183.180022][T16648] netlink_rcv_skb+0x15a/0x410 [ 3183.184791][T16648] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3183.191179][T16648] ? netlink_ack+0xa80/0xa80 [ 3183.195813][T16648] genl_rcv+0x24/0x40 [ 3183.199800][T16648] netlink_unicast+0x537/0x740 [ 3183.204670][T16648] ? netlink_attachskb+0x810/0x810 [ 3183.209778][T16648] ? _copy_from_iter_full+0x25c/0x870 [ 3183.215148][T16648] ? __phys_addr_symbol+0x2c/0x70 [ 3183.220190][T16648] ? __check_object_size+0x171/0x437 [ 3183.225478][T16648] netlink_sendmsg+0x882/0xe10 [ 3183.230271][T16648] ? aa_af_perm+0x260/0x260 [ 3183.234757][T16648] ? netlink_unicast+0x740/0x740 [ 3183.239679][T16648] ? netlink_unicast+0x740/0x740 [ 3183.244600][T16648] sock_sendmsg+0xcf/0x120 [ 3183.248998][T16648] ____sys_sendmsg+0x6b9/0x7d0 [ 3183.253746][T16648] ? kernel_sendmsg+0x50/0x50 [ 3183.258413][T16648] ? retint_kernel+0x2b/0x2b [ 3183.262996][T16648] ___sys_sendmsg+0x100/0x170 [ 3183.267656][T16648] ? sendmsg_copy_msghdr+0x70/0x70 [ 3183.272751][T16648] ? __fget_files+0x329/0x4f0 [ 3183.277410][T16648] ? ksys_dup3+0x3c0/0x3c0 [ 3183.281802][T16648] ? lock_acquire+0x197/0x420 [ 3183.286471][T16648] ? __might_fault+0xef/0x1d0 [ 3183.291130][T16648] ? __fget_light+0x208/0x270 [ 3183.295791][T16648] __sys_sendmsg+0xec/0x1b0 [ 3183.300274][T16648] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3183.305276][T16648] ? __x64_sys_futex+0x380/0x4f0 [ 3183.310216][T16648] ? trace_hardirqs_off_caller+0x55/0x230 [ 3183.316125][T16648] ? do_syscall_64+0x21/0x7d0 [ 3183.320797][T16648] do_syscall_64+0xf6/0x7d0 [ 3183.325293][T16648] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3183.331185][T16648] RIP: 0033:0x45c849 [ 3183.335079][T16648] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3183.354678][T16648] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3183.363114][T16648] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3183.371105][T16648] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3183.379058][T16648] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3183.387096][T16648] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3183.395050][T16648] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:45:30 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2348000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3183.558778][T16651] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3183.558778][T16651] !' [ 3183.571575][T16651] CPU: 1 PID: 16651 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3183.580276][T16651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3183.590341][T16651] Call Trace: [ 3183.593643][T16651] dump_stack+0x188/0x20d [ 3183.597984][T16651] sysfs_warn_dup.cold+0x1c/0x2d [ 3183.602924][T16651] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3183.608996][T16651] sysfs_create_link+0x61/0xc0 [ 3183.613768][T16651] device_add+0x71c/0x1bc0 [ 3183.618289][T16651] ? uevent_show+0x360/0x360 [ 3183.622888][T16651] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3183.628875][T16651] wiphy_register+0x1c46/0x2720 [ 3183.633726][T16651] ? wiphy_unregister+0xf90/0xf90 [ 3183.638741][T16651] ? __kmalloc+0x629/0x7a0 [ 3183.643145][T16651] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3183.648679][T16651] ieee80211_register_hw+0x13d4/0x36a0 [ 3183.654133][T16651] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3183.659579][T16651] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3183.665106][T16651] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3183.671080][T16651] ? memset+0x20/0x40 [ 3183.675056][T16651] ? __hrtimer_init+0x134/0x260 [ 3183.679893][T16651] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3183.685605][T16651] ? hwsim_register_received_nl+0x400/0x400 [ 3183.691482][T16651] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3183.696751][T16651] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3183.702205][T16651] hwsim_new_radio_nl+0x905/0xf60 [ 3183.707231][T16651] ? retint_kernel+0x2b/0x2b [ 3183.711824][T16651] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3183.717721][T16651] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3183.724051][T16651] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3183.730490][T16651] genl_rcv_msg+0x627/0xdf0 [ 3183.734991][T16651] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3183.741329][T16651] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3183.746606][T16651] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3183.752061][T16651] netlink_rcv_skb+0x15a/0x410 [ 3183.756818][T16651] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3183.763135][T16651] ? netlink_ack+0xa80/0xa80 [ 3183.767721][T16651] genl_rcv+0x24/0x40 [ 3183.771691][T16651] netlink_unicast+0x537/0x740 [ 3183.776500][T16651] ? netlink_attachskb+0x810/0x810 [ 3183.781600][T16651] ? _copy_from_iter_full+0x25c/0x870 [ 3183.786971][T16651] ? __phys_addr_symbol+0x2c/0x70 [ 3183.791988][T16651] ? __check_object_size+0x171/0x437 [ 3183.797267][T16651] netlink_sendmsg+0x882/0xe10 [ 3183.802027][T16651] ? aa_af_perm+0x260/0x260 [ 3183.806517][T16651] ? netlink_unicast+0x740/0x740 [ 3183.811480][T16651] ? netlink_unicast+0x740/0x740 [ 3183.816408][T16651] sock_sendmsg+0xcf/0x120 [ 3183.820823][T16651] ____sys_sendmsg+0x6b9/0x7d0 [ 3183.825584][T16651] ? kernel_sendmsg+0x50/0x50 [ 3183.830787][T16651] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3183.836243][T16651] ___sys_sendmsg+0x100/0x170 [ 3183.840915][T16651] ? sendmsg_copy_msghdr+0x70/0x70 [ 3183.846036][T16651] ? __fget_files+0x329/0x4f0 [ 3183.850713][T16651] ? ksys_dup3+0x3c0/0x3c0 [ 3183.855120][T16651] ? lock_acquire+0x197/0x420 [ 3183.859782][T16651] ? __might_fault+0xef/0x1d0 [ 3183.864446][T16651] ? __fget_light+0x208/0x270 [ 3183.869130][T16651] __sys_sendmsg+0xec/0x1b0 [ 3183.873629][T16651] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3183.878654][T16651] ? __x64_sys_futex+0x380/0x4f0 [ 3183.883588][T16651] ? trace_hardirqs_off_caller+0x55/0x230 [ 3183.889312][T16651] ? do_syscall_64+0x21/0x7d0 [ 3183.893983][T16651] do_syscall_64+0xf6/0x7d0 [ 3183.898481][T16651] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3183.904358][T16651] RIP: 0033:0x45c849 [ 3183.908241][T16651] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3183.927839][T16651] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3183.936650][T16651] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3183.944604][T16651] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3183.952557][T16651] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 23:45:31 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="1400000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3183.960513][T16651] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3183.968475][T16651] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3183.999749][T16656] netlink: 18431 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3184.030855][T16656] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3184.030855][T16656] !' [ 3184.041154][T16656] CPU: 1 PID: 16656 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3184.049839][T16656] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3184.059913][T16656] Call Trace: [ 3184.063207][T16656] dump_stack+0x188/0x20d [ 3184.067551][T16656] sysfs_warn_dup.cold+0x1c/0x2d [ 3184.072511][T16656] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3184.078594][T16656] sysfs_create_link+0x61/0xc0 [ 3184.083371][T16656] device_add+0x71c/0x1bc0 [ 3184.087804][T16656] ? ieee80211_set_bitrate_flags+0x81/0x5c0 [ 3184.093713][T16656] ? uevent_show+0x360/0x360 [ 3184.098318][T16656] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3184.104319][T16656] wiphy_register+0x1c46/0x2720 [ 3184.109190][T16656] ? wiphy_unregister+0xf90/0xf90 [ 3184.114226][T16656] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3184.119959][T16656] ? retint_kernel+0x2b/0x2b [ 3184.124568][T16656] ? ieee80211_register_hw+0x1368/0x36a0 [ 3184.130221][T16656] ieee80211_register_hw+0x13d4/0x36a0 [ 3184.135700][T16656] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3184.141173][T16656] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3184.146793][T16656] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3184.152772][T16656] ? memset+0x20/0x40 [ 3184.156745][T16656] ? __hrtimer_init+0x134/0x260 [ 3184.161615][T16656] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3184.167346][T16656] ? hwsim_register_received_nl+0x400/0x400 [ 3184.173229][T16656] hwsim_new_radio_nl+0x905/0xf60 [ 3184.178248][T16656] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3184.184133][T16656] ? cap_capable+0x1eb/0x250 [ 3184.188711][T16656] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3184.195031][T16656] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3184.201374][T16656] genl_rcv_msg+0x627/0xdf0 [ 3184.205877][T16656] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3184.212196][T16656] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 3184.217988][T16656] netlink_rcv_skb+0x15a/0x410 [ 3184.222751][T16656] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3184.229085][T16656] ? netlink_ack+0xa80/0xa80 [ 3184.233695][T16656] genl_rcv+0x24/0x40 [ 3184.237680][T16656] netlink_unicast+0x537/0x740 [ 3184.242453][T16656] ? netlink_attachskb+0x810/0x810 [ 3184.247555][T16656] ? _copy_from_iter_full+0x25c/0x870 [ 3184.252922][T16656] ? __phys_addr_symbol+0x2c/0x70 [ 3184.257945][T16656] ? __check_object_size+0x171/0x437 [ 3184.263248][T16656] netlink_sendmsg+0x882/0xe10 [ 3184.268029][T16656] ? aa_af_perm+0x260/0x260 [ 3184.272546][T16656] ? netlink_unicast+0x740/0x740 [ 3184.277485][T16656] ? netlink_unicast+0x740/0x740 [ 3184.282421][T16656] sock_sendmsg+0xcf/0x120 [ 3184.286842][T16656] ____sys_sendmsg+0x6b9/0x7d0 [ 3184.291605][T16656] ? kernel_sendmsg+0x50/0x50 [ 3184.296279][T16656] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3184.301741][T16656] ___sys_sendmsg+0x100/0x170 [ 3184.306420][T16656] ? retint_kernel+0x2b/0x2b [ 3184.310995][T16656] ? sendmsg_copy_msghdr+0x70/0x70 [ 3184.316100][T16656] ? __fget_files+0x3fa/0x4f0 [ 3184.320792][T16656] ? __fget_files+0x329/0x4f0 [ 3184.325462][T16656] ? ksys_dup3+0x3c0/0x3c0 [ 3184.329881][T16656] ? __fget_light+0x208/0x270 [ 3184.334557][T16656] __sys_sendmsg+0xec/0x1b0 [ 3184.339042][T16656] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3184.344092][T16656] ? __x64_sys_futex+0x380/0x4f0 [ 3184.349015][T16656] ? trace_hardirqs_off_caller+0x55/0x230 [ 3184.354716][T16656] ? do_syscall_64+0x21/0x7d0 [ 3184.359391][T16656] do_syscall_64+0xf6/0x7d0 [ 3184.363899][T16656] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3184.369784][T16656] RIP: 0033:0x45c849 [ 3184.373670][T16656] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3184.393434][T16656] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3184.401956][T16656] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3184.409935][T16656] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3184.418272][T16656] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3184.426230][T16656] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3184.434276][T16656] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:45:48 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2a48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:45:48 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60586511400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:45:48 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60000611400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:45:48 executing program 5 (fault-call:5 fault-nth:0): r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:45:48 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e480000246c0705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:45:48 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3201.724390][T16676] netlink: 18458 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3201.727923][T16674] FAULT_INJECTION: forcing a failure. [ 3201.727923][T16674] name failslab, interval 1, probability 0, space 0, times 0 [ 3201.756777][T16674] CPU: 1 PID: 16674 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3201.765492][T16674] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3201.775553][T16674] Call Trace: [ 3201.778850][T16674] dump_stack+0x188/0x20d [ 3201.783196][T16674] should_fail.cold+0x5/0xa [ 3201.787699][T16674] ? lock_downgrade+0x7f0/0x7f0 [ 3201.787719][T16674] ? fault_create_debugfs_attr+0x140/0x140 [ 3201.787743][T16674] should_failslab+0x5/0xf [ 3201.787759][T16674] kmem_cache_alloc_node_trace+0x27c/0x790 [ 3201.787774][T16674] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3201.787793][T16674] ? __local_bh_enable_ip+0x159/0x270 [ 3201.819270][T16674] __get_vm_area_node+0x126/0x3b0 [ 3201.824308][T16674] __vmalloc_node_range+0xdc/0x7a0 [ 3201.829435][T16674] ? netlink_sendmsg+0x605/0xe10 [ 3201.834392][T16674] ? netlink_sendmsg+0x605/0xe10 [ 3201.837317][T16675] netlink: 16922 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3201.839440][T16674] vmalloc+0x67/0x80 [ 3201.839460][T16674] ? netlink_sendmsg+0x605/0xe10 [ 3201.839477][T16674] netlink_sendmsg+0x605/0xe10 [ 3201.839498][T16674] ? aa_af_perm+0x260/0x260 [ 3201.839513][T16674] ? netlink_unicast+0x740/0x740 [ 3201.839537][T16674] ? netlink_unicast+0x740/0x740 [ 3201.839553][T16674] sock_sendmsg+0xcf/0x120 [ 3201.839569][T16674] ____sys_sendmsg+0x6b9/0x7d0 [ 3201.839587][T16674] ? kernel_sendmsg+0x50/0x50 [ 3201.839621][T16674] ___sys_sendmsg+0x100/0x170 [ 3201.873975][T16675] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3201.873975][T16675] !' [ 3201.877056][T16674] ? sendmsg_copy_msghdr+0x70/0x70 [ 3201.877091][T16674] ? __fget_files+0x329/0x4f0 [ 3201.877112][T16674] ? ksys_dup3+0x3c0/0x3c0 [ 3201.877126][T16674] ? find_held_lock+0x2d/0x110 [ 3201.877149][T16674] ? vfs_write+0x342/0x5c0 [ 3201.928806][T16674] ? __fget_light+0x208/0x270 [ 3201.933489][T16674] __sys_sendmsg+0xec/0x1b0 [ 3201.937996][T16674] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3201.943022][T16674] ? vfs_write+0x15b/0x5c0 [ 3201.947452][T16674] ? trace_hardirqs_off_caller+0x55/0x230 [ 3201.953169][T16674] ? do_syscall_64+0x21/0x7d0 [ 3201.957847][T16674] do_syscall_64+0xf6/0x7d0 [ 3201.962359][T16674] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3201.968245][T16674] RIP: 0033:0x45c849 [ 3201.972140][T16674] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3201.991734][T16674] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3202.000140][T16674] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3202.008342][T16674] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3202.016317][T16674] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 23:45:49 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60008111400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3202.024293][T16674] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 3202.032352][T16674] R13: 00000000000009f1 R14: 00000000004cca8d R15: 0000000000000000 [ 3202.040394][T16675] CPU: 0 PID: 16675 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3202.049079][T16675] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3202.059139][T16675] Call Trace: [ 3202.062436][T16675] dump_stack+0x188/0x20d [ 3202.066786][T16675] sysfs_warn_dup.cold+0x1c/0x2d [ 3202.071735][T16675] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3202.077820][T16675] sysfs_create_link+0x61/0xc0 [ 3202.082602][T16675] device_add+0x71c/0x1bc0 [ 3202.087035][T16675] ? uevent_show+0x360/0x360 [ 3202.087969][T16674] syz-executor.5: vmalloc: allocation failure: 213312 bytes, mode:0xcc0(GFP_KERNEL), nodemask=(null),cpuset=syz5,mems_allowed=0-1 [ 3202.091625][T16675] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3202.091646][T16675] wiphy_register+0x1c46/0x2720 [ 3202.091670][T16675] ? wiphy_unregister+0xf90/0xf90 [ 3202.091688][T16675] ? __kmalloc+0x629/0x7a0 [ 3202.091706][T16675] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3202.091731][T16675] ieee80211_register_hw+0x13d4/0x36a0 [ 3202.091752][T16675] ? calibrate_delay.cold+0x3db/0x3f6 [ 3202.091775][T16675] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3202.091796][T16675] ? retint_kernel+0x2b/0x2b [ 3202.091816][T16675] ? __hrtimer_init+0x134/0x260 [ 3202.091837][T16675] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3202.091853][T16675] ? vprintk_func+0x81/0x17e [ 3202.091882][T16675] ? hwsim_register_received_nl+0x400/0x400 23:45:49 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60586511400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3202.091905][T16675] hwsim_new_radio_nl+0x905/0xf60 [ 3202.091920][T16675] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3202.091938][T16675] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3202.091968][T16675] genl_rcv_msg+0x627/0xdf0 [ 3202.091989][T16675] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3202.092017][T16675] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3202.092033][T16675] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3202.092057][T16675] netlink_rcv_skb+0x15a/0x410 [ 3202.092073][T16675] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3202.092091][T16675] ? netlink_ack+0xa80/0xa80 [ 3202.092120][T16675] genl_rcv+0x24/0x40 [ 3202.092137][T16675] netlink_unicast+0x537/0x740 [ 3202.092158][T16675] ? netlink_attachskb+0x810/0x810 [ 3202.092172][T16675] ? _copy_from_iter_full+0x25c/0x870 [ 3202.092186][T16675] ? __phys_addr_symbol+0x2c/0x70 [ 3202.092201][T16675] ? __check_object_size+0x171/0x437 [ 3202.092221][T16675] netlink_sendmsg+0x882/0xe10 [ 3202.092241][T16675] ? aa_af_perm+0x260/0x260 [ 3202.092257][T16675] ? netlink_unicast+0x740/0x740 [ 3202.092282][T16675] ? netlink_unicast+0x740/0x740 [ 3202.092298][T16675] sock_sendmsg+0xcf/0x120 [ 3202.092314][T16675] ____sys_sendmsg+0x6b9/0x7d0 [ 3202.092331][T16675] ? kernel_sendmsg+0x50/0x50 [ 3202.092348][T16675] ? mark_lock+0xbc/0x1220 [ 3202.092374][T16675] ___sys_sendmsg+0x100/0x170 [ 3202.092393][T16675] ? sendmsg_copy_msghdr+0x70/0x70 [ 3202.092420][T16675] ? __fget_files+0x329/0x4f0 [ 3202.092441][T16675] ? ksys_dup3+0x3c0/0x3c0 [ 3202.092466][T16675] ? __fget_light+0x208/0x270 [ 3202.092488][T16675] __sys_sendmsg+0xec/0x1b0 [ 3202.092504][T16675] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3202.092519][T16675] ? __x64_sys_futex+0x380/0x4f0 [ 3202.092546][T16675] ? trace_hardirqs_off_caller+0x55/0x230 [ 3202.092563][T16675] ? do_syscall_64+0x21/0x7d0 [ 3202.092582][T16675] do_syscall_64+0xf6/0x7d0 [ 3202.092602][T16675] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3202.092619][T16675] RIP: 0033:0x45c849 23:45:49 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100211400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3202.092634][T16675] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3202.092642][T16675] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3202.092657][T16675] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3202.092665][T16675] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3202.092674][T16675] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3202.092682][T16675] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3202.092691][T16675] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3202.239595][T16679] netlink: 18458 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3202.268369][T16674] CPU: 1 PID: 16674 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3202.324693][T16674] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3202.324700][T16674] Call Trace: [ 3202.324721][T16674] dump_stack+0x188/0x20d [ 3202.324742][T16674] warn_alloc.cold+0x87/0x164 [ 3202.324759][T16674] ? zone_watermark_ok_safe+0x260/0x260 [ 3202.324781][T16674] ? __local_bh_enable_ip+0x159/0x270 [ 3202.324807][T16674] ? __get_vm_area_node+0x2e2/0x3b0 [ 3202.390532][T16683] netlink: 18458 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3202.395319][T16674] __vmalloc_node_range+0x452/0x7a0 [ 3202.395347][T16674] ? netlink_sendmsg+0x605/0xe10 [ 3202.395361][T16674] vmalloc+0x67/0x80 [ 3202.395379][T16674] ? netlink_sendmsg+0x605/0xe10 [ 3202.395399][T16674] netlink_sendmsg+0x605/0xe10 [ 3202.395420][T16674] ? aa_af_perm+0x260/0x260 [ 3202.484264][T16674] ? netlink_unicast+0x740/0x740 [ 3202.484291][T16674] ? netlink_unicast+0x740/0x740 [ 3202.484316][T16674] sock_sendmsg+0xcf/0x120 [ 3202.534308][T16687] netlink: 17930 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3202.536250][T16674] ____sys_sendmsg+0x6b9/0x7d0 [ 3202.536270][T16674] ? kernel_sendmsg+0x50/0x50 [ 3202.536301][T16674] ___sys_sendmsg+0x100/0x170 [ 3202.536320][T16674] ? sendmsg_copy_msghdr+0x70/0x70 [ 3202.536346][T16674] ? __fget_files+0x329/0x4f0 [ 3202.536366][T16674] ? ksys_dup3+0x3c0/0x3c0 [ 3202.568137][T16687] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3202.568137][T16687] !' [ 3202.569717][T16674] ? find_held_lock+0x2d/0x110 [ 3202.569739][T16674] ? vfs_write+0x342/0x5c0 [ 3202.569762][T16674] ? __fget_light+0x208/0x270 [ 3202.569785][T16674] __sys_sendmsg+0xec/0x1b0 [ 3202.569801][T16674] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3202.569818][T16674] ? vfs_write+0x15b/0x5c0 [ 3202.569845][T16674] ? trace_hardirqs_off_caller+0x55/0x230 [ 3202.569863][T16674] ? do_syscall_64+0x21/0x7d0 [ 3202.569879][T16674] do_syscall_64+0xf6/0x7d0 [ 3202.569902][T16674] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3202.632550][T16674] RIP: 0033:0x45c849 [ 3202.636451][T16674] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3202.656048][T16674] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3202.664465][T16674] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3202.672431][T16674] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3202.680396][T16674] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3202.688373][T16674] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 3202.696352][T16674] R13: 00000000000009f1 R14: 00000000004cca8d R15: 0000000000000000 [ 3202.704464][T16687] CPU: 0 PID: 16687 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3202.713144][T16687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3202.723217][T16687] Call Trace: [ 3202.726517][T16687] dump_stack+0x188/0x20d [ 3202.730863][T16687] sysfs_warn_dup.cold+0x1c/0x2d [ 3202.735818][T16687] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3202.741904][T16687] sysfs_create_link+0x61/0xc0 [ 3202.746677][T16687] device_add+0x71c/0x1bc0 [ 3202.751108][T16687] ? ieee80211_set_bitrate_flags+0x153/0x5c0 [ 3202.757097][T16687] ? uevent_show+0x360/0x360 [ 3202.761695][T16687] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3202.767661][T16687] wiphy_register+0x1c46/0x2720 [ 3202.772502][T16687] ? wiphy_unregister+0xf90/0xf90 [ 3202.777511][T16687] ? retint_kernel+0x2b/0x2b [ 3202.782107][T16687] ? ieee80211_register_hw+0x106c/0x36a0 [ 3202.787733][T16687] ieee80211_register_hw+0x13d4/0x36a0 [ 3202.793187][T16687] ? lockdep_hardirqs_on+0x381/0x5d0 [ 3202.798471][T16687] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3202.803920][T16687] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3202.809452][T16687] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3202.815414][T16687] ? memset+0x20/0x40 [ 3202.819382][T16687] ? __hrtimer_init+0x134/0x260 [ 3202.824221][T16687] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3202.829923][T16687] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3202.835211][T16687] ? hwsim_register_received_nl+0x400/0x400 [ 3202.841101][T16687] hwsim_new_radio_nl+0x905/0xf60 [ 3202.846138][T16687] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3202.852010][T16687] ? cap_capable+0x1eb/0x250 [ 3202.856610][T16687] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3202.862942][T16687] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3202.869262][T16687] genl_rcv_msg+0x627/0xdf0 [ 3202.873769][T16687] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3202.880089][T16687] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3202.885543][T16687] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3202.891250][T16687] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3202.897561][T16687] netlink_rcv_skb+0x15a/0x410 [ 3202.902308][T16687] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3202.908746][T16687] ? netlink_ack+0xa80/0xa80 [ 3202.913334][T16687] genl_rcv+0x24/0x40 [ 3202.917306][T16687] netlink_unicast+0x537/0x740 [ 3202.922072][T16687] ? netlink_attachskb+0x810/0x810 [ 3202.927172][T16687] ? _copy_from_iter_full+0x25c/0x870 [ 3202.932531][T16687] ? __phys_addr_symbol+0x2c/0x70 [ 3202.937547][T16687] ? __check_object_size+0x171/0x437 [ 3202.942833][T16687] netlink_sendmsg+0x882/0xe10 [ 3202.947588][T16687] ? aa_af_perm+0x260/0x260 [ 3202.952076][T16687] ? netlink_unicast+0x740/0x740 [ 3202.957004][T16687] ? netlink_unicast+0x740/0x740 [ 3202.961935][T16687] sock_sendmsg+0xcf/0x120 [ 3202.966355][T16687] ____sys_sendmsg+0x6b9/0x7d0 [ 3202.971107][T16687] ? kernel_sendmsg+0x50/0x50 [ 3202.975770][T16687] ? mark_lock+0xbc/0x1220 [ 3202.980178][T16687] ___sys_sendmsg+0x100/0x170 [ 3202.984847][T16687] ? sendmsg_copy_msghdr+0x70/0x70 [ 3202.989959][T16687] ? __fget_files+0x329/0x4f0 [ 3202.994624][T16687] ? ksys_dup3+0x3c0/0x3c0 [ 3202.999053][T16687] ? lock_acquire+0x197/0x420 [ 3203.003734][T16687] ? __might_fault+0xef/0x1d0 [ 3203.008405][T16687] ? __fget_light+0x208/0x270 [ 3203.013077][T16687] __sys_sendmsg+0xec/0x1b0 [ 3203.017574][T16687] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3203.022598][T16687] ? do_syscall_64+0xbc/0x7d0 [ 3203.027266][T16687] do_syscall_64+0xf6/0x7d0 [ 3203.031758][T16687] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3203.037630][T16687] RIP: 0033:0x45c849 [ 3203.041515][T16687] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3203.061108][T16687] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3203.069502][T16687] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3203.077457][T16687] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3203.085408][T16687] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3203.093360][T16687] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3203.101322][T16687] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3203.119776][T16674] Mem-Info: [ 3203.130441][T16674] active_anon:22441 inactive_anon:223 isolated_anon:0 [ 3203.130441][T16674] active_file:7653 inactive_file:78395 isolated_file:0 [ 3203.130441][T16674] unevictable:0 dirty:69 writeback:0 unstable:0 [ 3203.130441][T16674] slab_reclaimable:13978 slab_unreclaimable:92895 [ 3203.130441][T16674] mapped:60970 shmem:301 pagetables:811 bounce:0 [ 3203.130441][T16674] free:1298466 free_pcp:326 free_cma:0 23:45:50 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60008111400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3203.176432][T16674] Node 0 active_anon:89764kB inactive_anon:892kB active_file:30472kB inactive_file:313580kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:243880kB dirty:276kB writeback:0kB shmem:1204kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 133120kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no 23:45:50 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100311400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3203.207677][T16674] Node 1 active_anon:0kB inactive_anon:0kB active_file:140kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 3203.259067][T16674] Node 0 DMA free:15908kB min:220kB low:272kB high:324kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 3203.297164][T16693] netlink: 18458 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3203.306397][T16674] lowmem_reserve[]: 0 2521 2521 2521 2521 [ 3203.312808][T16674] Node 0 DMA32 free:1406116kB min:35968kB low:44960kB high:53952kB reserved_highatomic:0KB active_anon:89824kB inactive_anon:892kB active_file:30392kB inactive_file:313580kB unevictable:0kB writepending:272kB present:3129332kB managed:2584792kB mlocked:0kB kernel_stack:7992kB pagetables:3244kB bounce:0kB free_pcp:1708kB local_pcp:1304kB free_cma:0kB [ 3203.346070][T16674] lowmem_reserve[]: 0 0 0 0 0 [ 3203.351082][T16674] Node 0 Normal free:0kB min:0kB low:0kB high:0kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:80kB inactive_file:0kB unevictable:0kB writepending:4kB present:786432kB managed:80kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 3203.380334][T16674] lowmem_reserve[]: 0 0 0 0 0 [ 3203.385139][T16674] Node 1 Normal free:3769768kB min:53916kB low:67392kB high:80868kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:140kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870200kB mlocked:0kB kernel_stack:16kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 3203.415869][T16674] lowmem_reserve[]: 0 0 0 0 0 [ 3203.415896][T16674] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 3203.415975][T16674] Node 0 DMA32: 5028*4kB (UME) 1*8kB (M) 227*16kB (U) 278*32kB (U) 127*64kB (U) 75*128kB (UE) 32*256kB (UME) 8*512kB (UME) 3*1024kB (ME) 1*2048kB (U) 326*4096kB (UM) = 1403080kB [ 3203.416059][T16674] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 3203.416113][T16674] Node 1 Normal: 26*4kB (UME) 122*8kB (UM) 175*16kB (UME) 80*32kB (UME) 48*64kB (UME) 17*128kB (UME) 10*256kB (U) 3*512kB (U) 2*1024kB (ME) 2*2048kB (ME) 915*4096kB (M) = 3769768kB [ 3203.416206][T16674] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 3203.416218][T16674] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 23:45:50 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100411400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3203.416229][T16674] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 3203.416240][T16674] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 3203.416245][T16674] 53605 total pagecache pages [ 3203.416262][T16674] 0 pages in swap cache [ 3203.539495][T16674] Swap cache stats: add 0, delete 0, find 0/0 [ 3203.545596][T16674] Free swap = 0kB [ 3203.558451][T16674] Total swap = 0kB [ 3203.562480][T16674] 1965979 pages RAM [ 3203.566294][T16674] 0 pages HighMem/MovableOnly [ 3203.582587][T16674] 348234 pages reserved [ 3203.586767][T16674] 0 pages cma reserved [ 3203.628563][T16700] netlink: 17418 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3203.655492][T16700] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3203.655492][T16700] !' [ 3203.673114][T16700] CPU: 1 PID: 16700 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3203.681822][T16700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3203.691885][T16700] Call Trace: [ 3203.695185][T16700] dump_stack+0x188/0x20d [ 3203.699549][T16700] sysfs_warn_dup.cold+0x1c/0x2d [ 3203.704492][T16700] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3203.710566][T16700] sysfs_create_link+0x61/0xc0 [ 3203.715336][T16700] device_add+0x71c/0x1bc0 [ 3203.719760][T16700] ? uevent_show+0x360/0x360 [ 3203.724351][T16700] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3203.730340][T16700] wiphy_register+0x1c46/0x2720 [ 3203.735199][T16700] ? wiphy_unregister+0xf90/0xf90 [ 3203.740222][T16700] ? __kmalloc+0x629/0x7a0 [ 3203.744709][T16700] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3203.750256][T16700] ? ieee80211_register_hw+0x1e41/0x36a0 [ 3203.755935][T16700] ieee80211_register_hw+0x13d4/0x36a0 [ 3203.761403][T16700] ? __debug_object_init+0x4a1/0xe20 [ 3203.766695][T16700] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3203.772254][T16700] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3203.777799][T16700] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3203.783765][T16700] ? memset+0x20/0x40 [ 3203.787732][T16700] ? __hrtimer_init+0x134/0x260 [ 3203.792585][T16700] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3203.798305][T16700] ? vprintk_func+0x81/0x17e [ 3203.802890][T16700] ? hwsim_register_received_nl+0x400/0x400 [ 3203.808817][T16700] hwsim_new_radio_nl+0x905/0xf60 [ 3203.813838][T16700] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3203.819108][T16700] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3203.824990][T16700] genl_rcv_msg+0x627/0xdf0 [ 3203.829492][T16700] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3203.835814][T16700] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3203.841096][T16700] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3203.846564][T16700] netlink_rcv_skb+0x15a/0x410 [ 3203.851322][T16700] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3203.857652][T16700] ? netlink_ack+0xa80/0xa80 [ 3203.862238][T16700] genl_rcv+0x24/0x40 [ 3203.866213][T16700] netlink_unicast+0x537/0x740 [ 3203.870989][T16700] ? netlink_attachskb+0x810/0x810 [ 3203.876108][T16700] netlink_sendmsg+0x882/0xe10 [ 3203.880879][T16700] ? aa_af_perm+0x260/0x260 [ 3203.885372][T16700] ? netlink_unicast+0x740/0x740 [ 3203.890317][T16700] ? netlink_unicast+0x740/0x740 [ 3203.895246][T16700] sock_sendmsg+0xcf/0x120 [ 3203.899655][T16700] ____sys_sendmsg+0x6b9/0x7d0 [ 3203.904412][T16700] ? kernel_sendmsg+0x50/0x50 [ 3203.909073][T16700] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3203.914534][T16700] ___sys_sendmsg+0x100/0x170 [ 3203.919194][T16700] ? retint_kernel+0x2b/0x2b [ 3203.923817][T16700] ? sendmsg_copy_msghdr+0x70/0x70 [ 3203.928923][T16700] ? __fget_files+0x329/0x4f0 [ 3203.933586][T16700] ? ksys_dup3+0x3c0/0x3c0 [ 3203.937978][T16700] ? lock_acquire+0x197/0x420 [ 3203.942634][T16700] ? __might_fault+0xef/0x1d0 [ 3203.947299][T16700] ? __fget_light+0x208/0x270 [ 3203.951964][T16700] __sys_sendmsg+0xec/0x1b0 [ 3203.956453][T16700] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3203.961477][T16700] ? __x64_sys_futex+0x380/0x4f0 [ 3203.966417][T16700] ? trace_hardirqs_off_caller+0x55/0x230 [ 3203.972120][T16700] ? do_syscall_64+0x21/0x7d0 [ 3203.976905][T16700] do_syscall_64+0xf6/0x7d0 [ 3203.981422][T16700] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3203.987308][T16700] RIP: 0033:0x45c849 [ 3203.991196][T16700] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3204.010811][T16700] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3204.019229][T16700] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3204.027193][T16700] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3204.035158][T16700] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3204.043526][T16700] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3204.051491][T16700] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:46:06 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2a48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:06 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:06 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100211400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:06 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100511400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:06 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024740705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:06 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100411400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3219.315671][T16716] netlink: 17930 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3219.342978][T16716] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3219.342978][T16716] !' [ 3219.353192][T16716] CPU: 1 PID: 16716 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3219.361877][T16716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3219.371932][T16716] Call Trace: [ 3219.375220][T16716] dump_stack+0x188/0x20d [ 3219.379556][T16716] sysfs_warn_dup.cold+0x1c/0x2d [ 3219.384502][T16716] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3219.390565][T16716] sysfs_create_link+0x61/0xc0 [ 3219.395324][T16716] device_add+0x71c/0x1bc0 [ 3219.399860][T16716] ? ieee80211_set_bitrate_flags+0x134/0x5c0 [ 3219.405864][T16716] ? uevent_show+0x360/0x360 [ 3219.410472][T16716] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3219.416573][T16716] wiphy_register+0x1c46/0x2720 [ 3219.421436][T16716] ? wiphy_unregister+0xf90/0xf90 [ 3219.426467][T16716] ? __kmalloc+0x629/0x7a0 [ 3219.430885][T16716] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3219.436449][T16716] ? ieee80211_register_hw+0x1d80/0x36a0 [ 3219.442094][T16716] ieee80211_register_hw+0x13d4/0x36a0 [ 3219.447552][T16716] ? __debug_object_init+0x4a1/0xe20 [ 3219.452912][T16716] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3219.458360][T16716] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3219.463902][T16716] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3219.469876][T16716] ? memset+0x20/0x40 [ 3219.473849][T16716] ? __hrtimer_init+0x134/0x260 [ 3219.478685][T16716] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3219.484468][T16716] ? hwsim_register_received_nl+0x400/0x400 [ 3219.490381][T16716] hwsim_new_radio_nl+0x905/0xf60 [ 3219.495401][T16716] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3219.501303][T16716] ? retint_kernel+0x2b/0x2b [ 3219.505898][T16716] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3219.512210][T16716] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3219.518522][T16716] genl_rcv_msg+0x627/0xdf0 [ 3219.523030][T16716] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3219.529375][T16716] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3219.534655][T16716] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3219.540122][T16716] netlink_rcv_skb+0x15a/0x410 [ 3219.544890][T16716] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3219.551220][T16716] ? netlink_ack+0xa80/0xa80 [ 3219.555999][T16716] genl_rcv+0x24/0x40 [ 3219.560003][T16716] netlink_unicast+0x537/0x740 [ 3219.564821][T16716] ? netlink_attachskb+0x810/0x810 [ 3219.569929][T16716] ? _copy_from_iter_full+0x25c/0x870 [ 3219.575300][T16716] ? __phys_addr_symbol+0x2c/0x70 [ 3219.580315][T16716] ? __check_object_size+0x171/0x437 [ 3219.585597][T16716] netlink_sendmsg+0x882/0xe10 [ 3219.590361][T16716] ? aa_af_perm+0x260/0x260 [ 3219.594862][T16716] ? netlink_unicast+0x740/0x740 [ 3219.599811][T16716] ? netlink_unicast+0x740/0x740 [ 3219.604804][T16716] sock_sendmsg+0xcf/0x120 [ 3219.609207][T16716] ____sys_sendmsg+0x6b9/0x7d0 [ 3219.613966][T16716] ? kernel_sendmsg+0x50/0x50 [ 3219.618626][T16716] ? mark_lock+0xbc/0x1220 [ 3219.623045][T16716] ___sys_sendmsg+0x100/0x170 [ 3219.627713][T16716] ? sendmsg_copy_msghdr+0x70/0x70 [ 3219.632814][T16716] ? __fget_files+0x329/0x4f0 [ 3219.637473][T16716] ? ksys_dup3+0x3c0/0x3c0 [ 3219.641882][T16716] ? lock_acquire+0x209/0x420 [ 3219.646562][T16716] ? __fget_light+0x208/0x270 [ 3219.651245][T16716] __sys_sendmsg+0xec/0x1b0 [ 3219.655740][T16716] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3219.660778][T16716] ? do_syscall_64+0x4f/0x7d0 [ 3219.665452][T16716] do_syscall_64+0xf6/0x7d0 [ 3219.669957][T16716] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3219.675849][T16716] RIP: 0033:0x45c849 [ 3219.679746][T16716] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3219.699369][T16716] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3219.707890][T16716] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3219.715857][T16716] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3219.723937][T16716] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3219.731897][T16716] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3219.739948][T16716] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3219.771176][T16715] netlink: 17162 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3219.791650][T16715] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3219.791650][T16715] !' [ 3219.801803][T16715] CPU: 1 PID: 16715 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3219.810492][T16715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3219.820563][T16715] Call Trace: [ 3219.823869][T16715] dump_stack+0x188/0x20d [ 3219.828206][T16715] sysfs_warn_dup.cold+0x1c/0x2d [ 3219.833157][T16715] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3219.839215][T16715] sysfs_create_link+0x61/0xc0 [ 3219.843979][T16715] device_add+0x71c/0x1bc0 [ 3219.848394][T16715] ? uevent_show+0x360/0x360 [ 3219.852986][T16715] wiphy_register+0x1c46/0x2720 [ 3219.857836][T16715] ? wiphy_unregister+0xf90/0xf90 [ 3219.862865][T16715] ? __kmalloc+0x629/0x7a0 [ 3219.867280][T16715] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3219.872820][T16715] ? ieee80211_register_hw+0x95c/0x36a0 [ 3219.878356][T16715] ? ieee80211_register_hw+0x756/0x36a0 [ 3219.883905][T16715] ieee80211_register_hw+0x13d4/0x36a0 [ 3219.889376][T16715] ? calibrate_delay.cold+0x3db/0x3f6 [ 3219.894745][T16715] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3219.900195][T16715] ? retint_kernel+0x2b/0x2b [ 3219.904778][T16715] ? memset+0x20/0x40 [ 3219.908744][T16715] ? __hrtimer_init+0x134/0x260 [ 3219.913589][T16715] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3219.919309][T16715] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3219.924589][T16715] ? hwsim_register_received_nl+0x400/0x400 [ 3219.930466][T16715] ? hwsim_new_radio_nl+0x5dd/0xf60 [ 3219.935648][T16715] hwsim_new_radio_nl+0x905/0xf60 [ 3219.940657][T16715] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3219.946530][T16715] ? cap_capable+0x1eb/0x250 [ 3219.951113][T16715] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3219.957422][T16715] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3219.963734][T16715] genl_rcv_msg+0x627/0xdf0 [ 3219.968231][T16715] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3219.974557][T16715] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3219.979828][T16715] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3219.985286][T16715] netlink_rcv_skb+0x15a/0x410 [ 3219.990033][T16715] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3219.996344][T16715] ? netlink_ack+0xa80/0xa80 [ 3220.000935][T16715] ? genl_rcv+0x9/0x40 [ 3220.004992][T16715] genl_rcv+0x24/0x40 [ 3220.008960][T16715] netlink_unicast+0x537/0x740 [ 3220.013722][T16715] ? netlink_attachskb+0x810/0x810 [ 3220.018812][T16715] ? _copy_from_iter_full+0x25c/0x870 [ 3220.024189][T16715] ? __phys_addr_symbol+0x2c/0x70 [ 3220.029202][T16715] ? __check_object_size+0x171/0x437 [ 3220.034483][T16715] netlink_sendmsg+0x882/0xe10 [ 3220.039244][T16715] ? aa_af_perm+0x260/0x260 [ 3220.043737][T16715] ? netlink_unicast+0x740/0x740 [ 3220.048664][T16715] ? netlink_unicast+0x740/0x740 [ 3220.053584][T16715] sock_sendmsg+0xcf/0x120 [ 3220.057985][T16715] ____sys_sendmsg+0x6b9/0x7d0 [ 3220.062763][T16715] ? kernel_sendmsg+0x50/0x50 [ 3220.067433][T16715] ? mark_lock+0xbc/0x1220 [ 3220.071856][T16715] ___sys_sendmsg+0x100/0x170 [ 3220.076524][T16715] ? sendmsg_copy_msghdr+0x70/0x70 [ 3220.081634][T16715] ? __fget_files+0x329/0x4f0 [ 3220.086305][T16715] ? ksys_dup3+0x3c0/0x3c0 [ 3220.090794][T16715] ? lock_acquire+0x197/0x420 [ 3220.095458][T16715] ? __might_fault+0xef/0x1d0 [ 3220.100135][T16715] ? __fget_light+0x208/0x270 [ 3220.104808][T16715] __sys_sendmsg+0xec/0x1b0 [ 3220.109302][T16715] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3220.114309][T16715] ? __x64_sys_futex+0x380/0x4f0 [ 3220.119238][T16715] ? trace_hardirqs_off_caller+0x55/0x230 [ 3220.124946][T16715] ? do_syscall_64+0x21/0x7d0 [ 3220.129607][T16715] do_syscall_64+0xf6/0x7d0 [ 3220.134098][T16715] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3220.139970][T16715] RIP: 0033:0x45c849 [ 3220.143847][T16715] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3220.163443][T16715] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3220.171846][T16715] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3220.179797][T16715] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3220.187748][T16715] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3220.195700][T16715] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3220.203654][T16715] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:46:07 executing program 0 (fault-call:5 fault-nth:0): r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3220.238552][T16717] netlink: 'syz-executor.5': attribute type 8 has an invalid length. [ 3220.269517][T16717] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.5'. 23:46:07 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100611400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3220.282415][T16717] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3220.282415][T16717] !' [ 3220.301173][T16717] CPU: 1 PID: 16717 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3220.309882][T16717] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3220.319942][T16717] Call Trace: [ 3220.323242][T16717] dump_stack+0x188/0x20d [ 3220.327591][T16717] sysfs_warn_dup.cold+0x1c/0x2d [ 3220.332549][T16717] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3220.338632][T16717] sysfs_create_link+0x61/0xc0 [ 3220.343408][T16717] device_add+0x71c/0x1bc0 [ 3220.347847][T16717] ? uevent_show+0x360/0x360 [ 3220.352452][T16717] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3220.358447][T16717] wiphy_register+0x1c46/0x2720 [ 3220.363319][T16717] ? wiphy_unregister+0xf90/0xf90 [ 3220.368349][T16717] ? __kmalloc+0x629/0x7a0 [ 3220.372768][T16717] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3220.378333][T16717] ieee80211_register_hw+0x13d4/0x36a0 [ 3220.383803][T16717] ? __debug_object_init+0x4a1/0xe20 23:46:07 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="6b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3220.389107][T16717] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3220.394584][T16717] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3220.400143][T16717] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3220.406136][T16717] ? memset+0x20/0x40 [ 3220.410137][T16717] ? __hrtimer_init+0x134/0x260 [ 3220.414989][T16717] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3220.420707][T16717] ? vprintk_func+0x81/0x17e [ 3220.425320][T16717] ? hwsim_register_received_nl+0x400/0x400 [ 3220.431222][T16717] ? __nla_validate_parse+0x156/0x1cd0 [ 3220.436703][T16717] hwsim_new_radio_nl+0x905/0xf60 [ 3220.441747][T16717] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3220.447653][T16717] ? cap_capable+0x1eb/0x250 [ 3220.452261][T16717] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3220.458590][T16717] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3220.464920][T16717] genl_rcv_msg+0x627/0xdf0 [ 3220.469422][T16717] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3220.475764][T16717] ? retint_kernel+0x2b/0x2b [ 3220.480387][T16717] netlink_rcv_skb+0x15a/0x410 [ 3220.485170][T16717] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3220.491512][T16717] ? netlink_ack+0xa80/0xa80 [ 3220.496125][T16717] genl_rcv+0x24/0x40 [ 3220.500122][T16717] netlink_unicast+0x537/0x740 [ 3220.504897][T16717] ? netlink_attachskb+0x810/0x810 [ 3220.510013][T16717] ? _copy_from_iter_full+0x25c/0x870 [ 3220.515392][T16717] ? __phys_addr_symbol+0x2c/0x70 [ 3220.520421][T16717] ? __check_object_size+0x171/0x437 [ 3220.525713][T16717] netlink_sendmsg+0x882/0xe10 [ 3220.530466][T16717] ? aa_af_perm+0x260/0x260 [ 3220.534952][T16717] ? netlink_unicast+0x740/0x740 [ 3220.539891][T16717] ? netlink_unicast+0x740/0x740 [ 3220.544828][T16717] sock_sendmsg+0xcf/0x120 [ 3220.549237][T16717] ____sys_sendmsg+0x6b9/0x7d0 [ 3220.554009][T16717] ? kernel_sendmsg+0x50/0x50 [ 3220.558706][T16717] ___sys_sendmsg+0x100/0x170 [ 3220.563384][T16717] ? sendmsg_copy_msghdr+0x70/0x70 [ 3220.568600][T16717] ? __fget_files+0x329/0x4f0 [ 3220.573269][T16717] ? ksys_dup3+0x3c0/0x3c0 [ 3220.577668][T16717] ? lock_acquire+0x197/0x420 [ 3220.582353][T16717] ? __might_fault+0xef/0x1d0 [ 3220.587026][T16717] ? __fget_light+0x208/0x270 [ 3220.591700][T16717] __sys_sendmsg+0xec/0x1b0 [ 3220.596203][T16717] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3220.601238][T16717] ? do_syscall_64+0x4f/0x7d0 [ 3220.605911][T16717] do_syscall_64+0xf6/0x7d0 [ 3220.610419][T16717] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3220.616317][T16717] RIP: 0033:0x45c849 [ 3220.620201][T16717] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3220.639901][T16717] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3220.648321][T16717] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3220.656288][T16717] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3220.664259][T16717] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3220.672277][T16717] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3220.680268][T16717] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:46:07 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0f00000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3220.693429][T16726] netlink: 16906 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3220.720824][T16726] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3220.720824][T16726] !' 23:46:07 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="c00e000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3220.736382][T16726] CPU: 1 PID: 16726 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3220.745093][T16726] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3220.755173][T16726] Call Trace: [ 3220.758477][T16726] dump_stack+0x188/0x20d [ 3220.762821][T16726] sysfs_warn_dup.cold+0x1c/0x2d [ 3220.767775][T16726] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3220.773855][T16726] sysfs_create_link+0x61/0xc0 [ 3220.778634][T16726] device_add+0x71c/0x1bc0 [ 3220.783067][T16726] ? ieee80211_set_bitrate_flags+0x81/0x5c0 [ 3220.788977][T16726] ? uevent_show+0x360/0x360 [ 3220.793568][T16726] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3220.799532][T16726] wiphy_register+0x1c46/0x2720 [ 3220.804371][T16726] ? wiphy_unregister+0xf90/0xf90 [ 3220.809646][T16726] ? retint_kernel+0x2b/0x2b [ 3220.814242][T16726] ? ieee80211_register_hw+0x2a57/0x36a0 [ 3220.819875][T16726] ieee80211_register_hw+0x13d4/0x36a0 [ 3220.825436][T16726] ? calibrate_delay.cold+0x3db/0x3f6 [ 3220.830815][T16726] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3220.836272][T16726] ? retint_kernel+0x2b/0x2b [ 3220.840880][T16726] ? __hrtimer_init+0x134/0x260 [ 3220.845731][T16726] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3220.851451][T16726] ? hwsim_register_received_nl+0x400/0x400 [ 3220.857334][T16726] hwsim_new_radio_nl+0x905/0xf60 [ 3220.862349][T16726] ? swapgs_restore_regs_and_return_to_usermode+0x40/0x40 [ 3220.869455][T16726] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3220.875347][T16726] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3220.881663][T16726] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3220.887977][T16726] genl_rcv_msg+0x627/0xdf0 23:46:08 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0040030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3220.892500][T16726] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3220.898843][T16726] ? retint_kernel+0x2b/0x2b [ 3220.903461][T16726] netlink_rcv_skb+0x15a/0x410 [ 3220.908231][T16726] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3220.914577][T16726] ? netlink_ack+0xa80/0xa80 [ 3220.919353][T16726] genl_rcv+0x24/0x40 [ 3220.923347][T16726] netlink_unicast+0x537/0x740 [ 3220.928127][T16726] ? netlink_attachskb+0x810/0x810 [ 3220.933358][T16726] ? _copy_from_iter_full+0x25c/0x870 [ 3220.938738][T16726] ? __phys_addr_symbol+0x2c/0x70 [ 3220.943771][T16726] ? __check_object_size+0x171/0x437 [ 3220.949068][T16726] netlink_sendmsg+0x882/0xe10 [ 3220.953847][T16726] ? retint_kernel+0x2b/0x2b [ 3220.958566][T16726] ? netlink_unicast+0x740/0x740 [ 3220.963518][T16726] ? netlink_unicast+0x740/0x740 [ 3220.968462][T16726] ? netlink_unicast+0x740/0x740 [ 3220.973388][T16726] sock_sendmsg+0xcf/0x120 [ 3220.977791][T16726] ____sys_sendmsg+0x6b9/0x7d0 [ 3220.982556][T16726] ? kernel_sendmsg+0x50/0x50 [ 3220.987234][T16726] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3220.992695][T16726] ___sys_sendmsg+0x100/0x170 [ 3220.997377][T16726] ? retint_kernel+0x2b/0x2b [ 3221.001965][T16726] ? sendmsg_copy_msghdr+0x70/0x70 [ 3221.007237][T16726] ? __fget_files+0x329/0x4f0 [ 3221.011905][T16726] ? ksys_dup3+0x3c0/0x3c0 [ 3221.016303][T16726] ? lock_acquire+0x197/0x420 [ 3221.020964][T16726] ? __might_fault+0xef/0x1d0 [ 3221.025626][T16726] ? __fget_light+0x208/0x270 [ 3221.030289][T16726] __sys_sendmsg+0xec/0x1b0 [ 3221.034778][T16726] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3221.039784][T16726] ? __x64_sys_futex+0x380/0x4f0 [ 3221.044710][T16726] ? trace_hardirqs_off_caller+0x55/0x230 [ 3221.050414][T16726] ? do_syscall_64+0x21/0x7d0 [ 3221.055075][T16726] do_syscall_64+0xf6/0x7d0 [ 3221.059565][T16726] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3221.065490][T16726] RIP: 0033:0x45c849 [ 3221.069374][T16726] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3221.088960][T16726] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3221.097351][T16726] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3221.105307][T16726] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3221.113385][T16726] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3221.121351][T16726] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3221.129309][T16726] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3221.156866][T16731] netlink: 18503 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3221.190775][T16731] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3221.190775][T16731] !' [ 3221.202096][T16731] CPU: 0 PID: 16731 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3221.210784][T16731] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3221.220842][T16731] Call Trace: [ 3221.224279][T16731] dump_stack+0x188/0x20d [ 3221.228628][T16731] sysfs_warn_dup.cold+0x1c/0x2d [ 3221.233584][T16731] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3221.239671][T16731] sysfs_create_link+0x61/0xc0 [ 3221.244453][T16731] device_add+0x71c/0x1bc0 [ 3221.248887][T16731] ? __sanitizer_cov_trace_switch+0x40/0x70 [ 3221.254778][T16731] ? uevent_show+0x360/0x360 [ 3221.259356][T16731] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3221.265322][T16731] wiphy_register+0x1c46/0x2720 [ 3221.270181][T16731] ? wiphy_unregister+0xf90/0xf90 [ 3221.275199][T16731] ? retint_kernel+0x2b/0x2b [ 3221.279866][T16731] ? ieee80211_register_hw+0x2d20/0x36a0 [ 3221.285512][T16731] ieee80211_register_hw+0x13d4/0x36a0 [ 3221.290987][T16731] ? __debug_object_init+0x4a1/0xe20 [ 3221.296278][T16731] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3221.301750][T16731] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3221.307308][T16731] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3221.313289][T16731] ? memset+0x20/0x40 [ 3221.317260][T16731] ? __hrtimer_init+0x134/0x260 [ 3221.322106][T16731] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3221.327816][T16731] ? vprintk_func+0x81/0x17e [ 3221.332418][T16731] ? hwsim_register_received_nl+0x400/0x400 [ 3221.338299][T16731] ? __nla_validate_parse+0x156/0x1cd0 [ 3221.343836][T16731] hwsim_new_radio_nl+0x905/0xf60 [ 3221.348849][T16731] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3221.354726][T16731] ? cap_capable+0x1eb/0x250 [ 3221.359309][T16731] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3221.365618][T16731] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3221.371933][T16731] genl_rcv_msg+0x627/0xdf0 [ 3221.376423][T16731] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3221.382749][T16731] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 3221.388631][T16731] netlink_rcv_skb+0x15a/0x410 [ 3221.393572][T16731] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3221.399884][T16731] ? netlink_ack+0xa80/0xa80 [ 3221.404469][T16731] genl_rcv+0x24/0x40 [ 3221.408442][T16731] netlink_unicast+0x537/0x740 [ 3221.413197][T16731] ? netlink_attachskb+0x810/0x810 [ 3221.418309][T16731] ? _copy_from_iter_full+0x25c/0x870 [ 3221.423679][T16731] ? __phys_addr_symbol+0x2c/0x70 [ 3221.428767][T16731] ? __check_object_size+0x171/0x437 [ 3221.434059][T16731] netlink_sendmsg+0x882/0xe10 [ 3221.439251][T16731] ? aa_af_perm+0x260/0x260 [ 3221.443946][T16731] ? netlink_unicast+0x740/0x740 [ 3221.448888][T16731] ? netlink_unicast+0x740/0x740 [ 3221.453810][T16731] sock_sendmsg+0xcf/0x120 [ 3221.458235][T16731] ____sys_sendmsg+0x6b9/0x7d0 [ 3221.462992][T16731] ? kernel_sendmsg+0x50/0x50 [ 3221.467690][T16731] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3221.473247][T16731] ___sys_sendmsg+0x100/0x170 [ 3221.477929][T16731] ? retint_kernel+0x2b/0x2b [ 3221.482512][T16731] ? sendmsg_copy_msghdr+0x70/0x70 [ 3221.487810][T16731] ? __fget_files+0x329/0x4f0 [ 3221.492480][T16731] ? ksys_dup3+0x3c0/0x3c0 [ 3221.496883][T16731] ? lock_acquire+0x197/0x420 [ 3221.501549][T16731] ? __might_fault+0xef/0x1d0 [ 3221.507189][T16731] ? __fget_light+0x208/0x270 [ 3221.511860][T16731] __sys_sendmsg+0xec/0x1b0 [ 3221.516350][T16731] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3221.521357][T16731] ? __x64_sys_futex+0x380/0x4f0 [ 3221.526284][T16731] ? trace_hardirqs_off_caller+0x55/0x230 [ 3221.531989][T16731] ? do_syscall_64+0x21/0x7d0 [ 3221.536652][T16731] do_syscall_64+0xf6/0x7d0 [ 3221.541157][T16731] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3221.547033][T16731] RIP: 0033:0x45c849 [ 3221.551385][T16731] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3221.570988][T16731] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3221.579402][T16731] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3221.587377][T16731] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3221.595369][T16731] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3221.603339][T16731] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3221.611417][T16731] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3240.360685][T16753] netlink: 18438 bytes leftover after parsing attributes in process `syz-executor.4'. [ 3240.371982][T16753] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3240.371982][T16753] !' [ 3240.381823][T16753] CPU: 0 PID: 16753 Comm: syz-executor.4 Not tainted 5.6.0-rc5-syzkaller #0 [ 3240.390525][T16753] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3240.400580][T16753] Call Trace: [ 3240.403860][T16753] dump_stack+0x188/0x20d [ 3240.408203][T16753] sysfs_warn_dup.cold+0x1c/0x2d [ 3240.413129][T16753] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3240.419201][T16753] sysfs_create_link+0x61/0xc0 [ 3240.423951][T16753] device_add+0x71c/0x1bc0 [ 3240.428355][T16753] ? uevent_show+0x360/0x360 [ 3240.432928][T16753] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3240.438927][T16753] wiphy_register+0x1c46/0x2720 [ 3240.443786][T16753] ? wiphy_unregister+0xf90/0xf90 [ 3240.448808][T16753] ? __kmalloc+0x629/0x7a0 [ 3240.453274][T16753] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3240.458815][T16753] ieee80211_register_hw+0x13d4/0x36a0 [ 3240.464269][T16753] ? __debug_object_init+0x4a1/0xe20 [ 3240.469543][T16753] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3240.475113][T16753] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3240.480661][T16753] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3240.486638][T16753] ? memset+0x20/0x40 [ 3240.490650][T16753] ? __hrtimer_init+0x134/0x260 [ 3240.495500][T16753] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3240.501206][T16753] ? vprintk_func+0x81/0x17e [ 3240.505833][T16753] ? hwsim_register_received_nl+0x400/0x400 [ 3240.511715][T16753] hwsim_new_radio_nl+0x905/0xf60 [ 3240.516723][T16753] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3240.522597][T16753] ? cap_capable+0x1eb/0x250 [ 3240.527170][T16753] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3240.533475][T16753] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3240.539785][T16753] genl_rcv_msg+0x627/0xdf0 [ 3240.544276][T16753] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3240.550606][T16753] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 3240.556398][T16753] netlink_rcv_skb+0x15a/0x410 [ 3240.561493][T16753] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3240.567805][T16753] ? netlink_ack+0xa80/0xa80 [ 3240.572386][T16753] genl_rcv+0x24/0x40 [ 3240.576366][T16753] netlink_unicast+0x537/0x740 [ 3240.581809][T16753] ? netlink_attachskb+0x810/0x810 [ 3240.586920][T16753] ? _copy_from_iter_full+0x25c/0x870 [ 3240.592534][T16753] ? __phys_addr_symbol+0x2c/0x70 [ 3240.597540][T16753] ? __check_object_size+0x171/0x437 [ 3240.605078][T16753] netlink_sendmsg+0x882/0xe10 [ 3240.609865][T16753] ? aa_af_perm+0x260/0x260 [ 3240.614354][T16753] ? netlink_unicast+0x740/0x740 [ 3240.619312][T16753] ? netlink_unicast+0x740/0x740 [ 3240.624243][T16753] sock_sendmsg+0xcf/0x120 [ 3240.628642][T16753] ____sys_sendmsg+0x6b9/0x7d0 [ 3240.633418][T16753] ? kernel_sendmsg+0x50/0x50 [ 3240.638082][T16753] ? mark_lock+0xbc/0x1220 [ 3240.642489][T16753] ___sys_sendmsg+0x100/0x170 [ 3240.647148][T16753] ? sendmsg_copy_msghdr+0x70/0x70 [ 3240.652255][T16753] ? __fget_files+0x329/0x4f0 [ 3240.657446][T16753] ? ksys_dup3+0x3c0/0x3c0 [ 3240.661856][T16753] ? lock_acquire+0x197/0x420 [ 3240.666522][T16753] ? __might_fault+0xef/0x1d0 [ 3240.671191][T16753] ? __fget_light+0x208/0x270 [ 3240.675884][T16753] __sys_sendmsg+0xec/0x1b0 [ 3240.680370][T16753] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3240.685380][T16753] ? __x64_sys_futex+0x380/0x4f0 [ 3240.690310][T16753] ? trace_hardirqs_off_caller+0x55/0x230 [ 3240.696012][T16753] ? do_syscall_64+0x21/0x7d0 [ 3240.700674][T16753] do_syscall_64+0xf6/0x7d0 [ 3240.705162][T16753] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3240.711051][T16753] RIP: 0033:0x45c849 [ 3240.715023][T16753] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3240.734828][T16753] RSP: 002b:00007f5b9455cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3240.743227][T16753] RAX: ffffffffffffffda RBX: 00007f5b9455d6d4 RCX: 000000000045c849 [ 3240.751203][T16753] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 23:46:27 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100611400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:27 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2040032024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3240.759167][T16753] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3240.767128][T16753] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3240.775097][T16753] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac 23:46:27 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100711400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:27 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100411400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:27 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0f00000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:27 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e480000247a0705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:27 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="00f0ff7f24000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:28 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="1400000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3240.845782][T16756] netlink: 16650 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3240.925903][T16756] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3240.925903][T16756] !' [ 3240.949836][T16756] CPU: 0 PID: 16756 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3240.958544][T16756] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3240.968618][T16756] Call Trace: [ 3240.971919][T16756] dump_stack+0x188/0x20d 23:46:28 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e024030024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3240.976272][T16756] sysfs_warn_dup.cold+0x1c/0x2d [ 3240.981232][T16756] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3240.987313][T16756] sysfs_create_link+0x61/0xc0 [ 3240.992077][T16756] device_add+0x71c/0x1bc0 [ 3240.996517][T16756] ? uevent_show+0x360/0x360 [ 3241.001119][T16756] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3241.007107][T16756] wiphy_register+0x1c46/0x2720 [ 3241.011978][T16756] ? wiphy_unregister+0xf90/0xf90 [ 3241.017021][T16756] ? retint_kernel+0x2b/0x2b [ 3241.021641][T16756] ieee80211_register_hw+0x13d4/0x36a0 [ 3241.027116][T16756] ? __debug_object_init+0x4a1/0xe20 [ 3241.032534][T16756] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3241.038020][T16756] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3241.043705][T16756] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3241.049712][T16756] ? memset+0x20/0x40 [ 3241.053685][T16756] ? __hrtimer_init+0x134/0x260 [ 3241.058522][T16756] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3241.064297][T16756] ? vprintk_func+0x81/0x17e [ 3241.068894][T16756] ? hwsim_register_received_nl+0x400/0x400 [ 3241.074778][T16756] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3241.080063][T16756] hwsim_new_radio_nl+0x905/0xf60 [ 3241.085072][T16756] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3241.090345][T16756] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3241.096338][T16756] genl_rcv_msg+0x627/0xdf0 [ 3241.100834][T16756] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3241.107152][T16756] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3241.112450][T16756] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3241.118166][T16756] ? retint_kernel+0x2b/0x2b [ 3241.122778][T16756] netlink_rcv_skb+0x15a/0x410 [ 3241.127534][T16756] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3241.133859][T16756] ? netlink_ack+0xa80/0xa80 [ 3241.138451][T16756] genl_rcv+0x24/0x40 [ 3241.142430][T16756] netlink_unicast+0x537/0x740 [ 3241.147194][T16756] ? netlink_attachskb+0x810/0x810 [ 3241.152297][T16756] ? _copy_from_iter_full+0x25c/0x870 [ 3241.157703][T16756] ? __phys_addr_symbol+0x2c/0x70 [ 3241.162789][T16756] ? __check_object_size+0x171/0x437 [ 3241.168185][T16756] netlink_sendmsg+0x882/0xe10 [ 3241.172985][T16756] ? aa_af_perm+0x260/0x260 [ 3241.177498][T16756] ? netlink_unicast+0x740/0x740 [ 3241.182435][T16756] ? netlink_unicast+0x740/0x740 [ 3241.187375][T16756] sock_sendmsg+0xcf/0x120 [ 3241.191785][T16756] ____sys_sendmsg+0x6b9/0x7d0 [ 3241.196541][T16756] ? kernel_sendmsg+0x50/0x50 [ 3241.201212][T16756] ? mark_lock+0xbc/0x1220 [ 3241.205698][T16756] ___sys_sendmsg+0x100/0x170 [ 3241.210397][T16756] ? sendmsg_copy_msghdr+0x70/0x70 [ 3241.215497][T16756] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3241.220951][T16756] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3241.226279][T16756] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3241.231728][T16756] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3241.237461][T16756] ? retint_kernel+0x2b/0x2b [ 3241.242088][T16756] ? sockfd_lookup_light+0x73/0x170 [ 3241.247276][T16756] ? sockfd_lookup_light+0x9c/0x170 [ 3241.252463][T16756] __sys_sendmsg+0xec/0x1b0 [ 3241.256951][T16756] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3241.261970][T16756] ? __x64_sys_futex+0x380/0x4f0 [ 3241.266906][T16756] ? trace_hardirqs_off_caller+0x55/0x230 [ 3241.272618][T16756] ? do_syscall_64+0x21/0x7d0 [ 3241.277298][T16756] do_syscall_64+0xf6/0x7d0 [ 3241.281817][T16756] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3241.287757][T16756] RIP: 0033:0x45c849 [ 3241.291639][T16756] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3241.311228][T16756] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3241.319674][T16756] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3241.327629][T16756] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3241.335587][T16756] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3241.343546][T16756] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3241.351565][T16756] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3241.390794][T16771] netlink: 'syz-executor.5': attribute type 8 has an invalid length. [ 3241.400551][T16771] netlink: 178608 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3241.429101][T16771] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3241.429101][T16771] !' [ 3241.445992][T16771] CPU: 0 PID: 16771 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3241.454678][T16771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3241.464736][T16771] Call Trace: [ 3241.468034][T16771] dump_stack+0x188/0x20d [ 3241.472398][T16771] sysfs_warn_dup.cold+0x1c/0x2d [ 3241.477344][T16771] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3241.483410][T16771] sysfs_create_link+0x61/0xc0 [ 3241.488156][T16771] device_add+0x71c/0x1bc0 [ 3241.492558][T16771] ? ieee80211_set_bitrate_flags+0x153/0x5c0 [ 3241.498518][T16771] ? uevent_show+0x360/0x360 [ 3241.503100][T16771] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3241.509125][T16771] wiphy_register+0x1c46/0x2720 [ 3241.513965][T16771] ? wiphy_unregister+0xf90/0xf90 [ 3241.519021][T16771] ? retint_kernel+0x2b/0x2b [ 3241.523600][T16771] ? ieee80211_register_hw+0x1375/0x36a0 [ 3241.529214][T16771] ieee80211_register_hw+0x13d4/0x36a0 [ 3241.534659][T16771] ? __debug_object_init+0x4a1/0xe20 [ 3241.539932][T16771] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3241.545375][T16771] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3241.550898][T16771] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3241.556855][T16771] ? memset+0x20/0x40 [ 3241.560826][T16771] ? __hrtimer_init+0x134/0x260 [ 3241.565658][T16771] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3241.571361][T16771] ? hwsim_register_received_nl+0x400/0x400 [ 3241.577240][T16771] hwsim_new_radio_nl+0x905/0xf60 [ 3241.582245][T16771] ? retint_kernel+0x2b/0x2b [ 3241.586824][T16771] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3241.592700][T16771] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3241.599012][T16771] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3241.605317][T16771] genl_rcv_msg+0x627/0xdf0 [ 3241.609801][T16771] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3241.616112][T16771] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3241.621375][T16771] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3241.626820][T16771] netlink_rcv_skb+0x15a/0x410 [ 3241.631574][T16771] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3241.637877][T16771] ? netlink_ack+0xa80/0xa80 [ 3241.642449][T16771] genl_rcv+0x24/0x40 [ 3241.646419][T16771] netlink_unicast+0x537/0x740 [ 3241.651178][T16771] ? netlink_attachskb+0x810/0x810 [ 3241.656272][T16771] ? _copy_from_iter_full+0x25c/0x870 [ 3241.661629][T16771] ? __phys_addr_symbol+0x2c/0x70 [ 3241.666672][T16771] ? __check_object_size+0x171/0x437 [ 3241.671941][T16771] netlink_sendmsg+0x882/0xe10 [ 3241.676689][T16771] ? aa_af_perm+0x260/0x260 [ 3241.681173][T16771] ? netlink_unicast+0x740/0x740 [ 3241.686097][T16771] ? netlink_unicast+0x740/0x740 [ 3241.691049][T16771] sock_sendmsg+0xcf/0x120 [ 3241.695460][T16771] ____sys_sendmsg+0x6b9/0x7d0 [ 3241.700211][T16771] ? kernel_sendmsg+0x50/0x50 [ 3241.704884][T16771] ? mark_lock+0xbc/0x1220 [ 3241.709302][T16771] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3241.714766][T16771] ___sys_sendmsg+0x100/0x170 [ 3241.719520][T16771] ? sendmsg_copy_msghdr+0x70/0x70 [ 3241.724627][T16771] ? __fget_files+0x329/0x4f0 [ 3241.729330][T16771] ? ksys_dup3+0x3c0/0x3c0 [ 3241.733759][T16771] ? lock_acquire+0x197/0x420 [ 3241.738420][T16771] ? __might_fault+0xef/0x1d0 [ 3241.743092][T16771] ? __fget_light+0x208/0x270 [ 3241.747757][T16771] __sys_sendmsg+0xec/0x1b0 [ 3241.752242][T16771] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3241.757261][T16771] ? __x64_sys_futex+0x380/0x4f0 [ 3241.762186][T16771] ? trace_hardirqs_off_caller+0x55/0x230 [ 3241.767883][T16771] ? do_syscall_64+0x21/0x7d0 [ 3241.772539][T16771] do_syscall_64+0xf6/0x7d0 [ 3241.777029][T16771] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3241.782898][T16771] RIP: 0033:0x45c849 [ 3241.786771][T16771] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3241.806350][T16771] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3241.814737][T16771] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3241.822685][T16771] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 23:46:28 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100811400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3241.830643][T16771] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3241.838603][T16771] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3241.846569][T16771] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:46:29 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f350024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3241.920447][T16777] netlink: 16394 bytes leftover after parsing attributes in process `syz-executor.3'. 23:46:29 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0248000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3241.975339][T16777] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3241.975339][T16777] !' [ 3242.016337][T16777] CPU: 0 PID: 16777 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3242.025047][T16777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3242.035122][T16777] Call Trace: [ 3242.038430][T16777] dump_stack+0x188/0x20d [ 3242.042782][T16777] sysfs_warn_dup.cold+0x1c/0x2d [ 3242.047736][T16777] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3242.053809][T16777] sysfs_create_link+0x61/0xc0 [ 3242.058559][T16777] device_add+0x71c/0x1bc0 [ 3242.062979][T16777] ? retint_kernel+0x2b/0x2b [ 3242.067585][T16777] ? uevent_show+0x360/0x360 [ 3242.072171][T16777] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3242.078132][T16777] wiphy_register+0x1c46/0x2720 [ 3242.082987][T16777] ? wiphy_unregister+0xf90/0xf90 [ 3242.088029][T16777] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3242.093748][T16777] ? retint_kernel+0x2b/0x2b [ 3242.098327][T16777] ieee80211_register_hw+0x13d4/0x36a0 [ 3242.103784][T16777] ? __debug_object_init+0x4a1/0xe20 [ 3242.109056][T16777] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3242.114500][T16777] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3242.120024][T16777] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3242.125996][T16777] ? memset+0x20/0x40 [ 3242.129964][T16777] ? __hrtimer_init+0x134/0x260 [ 3242.134795][T16777] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3242.140502][T16777] ? hwsim_register_received_nl+0x400/0x400 [ 3242.146383][T16777] hwsim_new_radio_nl+0x905/0xf60 [ 3242.151410][T16777] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3242.157285][T16777] ? retint_kernel+0x2b/0x2b [ 3242.161898][T16777] ? cap_capable+0x1eb/0x250 [ 3242.166473][T16777] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3242.172780][T16777] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3242.179138][T16777] genl_rcv_msg+0x627/0xdf0 [ 3242.183627][T16777] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3242.189982][T16777] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3242.195286][T16777] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3242.200751][T16777] netlink_rcv_skb+0x15a/0x410 [ 3242.205501][T16777] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3242.211893][T16777] ? netlink_ack+0xa80/0xa80 [ 3242.216531][T16777] genl_rcv+0x24/0x40 [ 3242.220513][T16777] netlink_unicast+0x537/0x740 [ 3242.225284][T16777] ? netlink_attachskb+0x810/0x810 [ 3242.230383][T16777] ? _copy_from_iter_full+0x25c/0x870 [ 3242.235748][T16777] ? __phys_addr_symbol+0x2c/0x70 [ 3242.240752][T16777] ? __check_object_size+0x171/0x437 [ 3242.246030][T16777] netlink_sendmsg+0x882/0xe10 [ 3242.250779][T16777] ? aa_af_perm+0x260/0x260 [ 3242.255264][T16777] ? netlink_unicast+0x740/0x740 [ 3242.260238][T16777] ? netlink_unicast+0x740/0x740 [ 3242.265174][T16777] sock_sendmsg+0xcf/0x120 [ 3242.269592][T16777] ____sys_sendmsg+0x6b9/0x7d0 [ 3242.274351][T16777] ? kernel_sendmsg+0x50/0x50 [ 3242.279055][T16777] ? mark_lock+0xbc/0x1220 [ 3242.283464][T16777] ___sys_sendmsg+0x100/0x170 [ 3242.288129][T16777] ? sendmsg_copy_msghdr+0x70/0x70 [ 3242.293226][T16777] ? __fget_files+0x329/0x4f0 [ 3242.297904][T16777] ? ksys_dup3+0x3c0/0x3c0 [ 3242.302302][T16777] ? lock_acquire+0x209/0x420 [ 3242.306964][T16777] ? __fget_light+0x208/0x270 [ 3242.311620][T16777] __sys_sendmsg+0xec/0x1b0 [ 3242.316114][T16777] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3242.321181][T16777] ? retint_kernel+0x2b/0x2b [ 3242.325761][T16777] ? __x64_sys_sendmsg+0xd/0xb0 [ 3242.330599][T16777] ? __sanitizer_cov_trace_pc+0x27/0x50 [ 3242.336131][T16777] do_syscall_64+0xf6/0x7d0 [ 3242.340628][T16777] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3242.346511][T16777] RIP: 0033:0x45c849 [ 3242.350383][T16777] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3242.369964][T16777] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3242.378360][T16777] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3242.386335][T16777] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3242.394291][T16777] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3242.402248][T16777] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3242.410204][T16777] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3242.433961][T16784] netlink: 18398 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3242.475929][T16784] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3242.475929][T16784] !' [ 3242.486171][T16784] CPU: 0 PID: 16784 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3242.494860][T16784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3242.504971][T16784] Call Trace: [ 3242.508249][T16784] dump_stack+0x188/0x20d [ 3242.512602][T16784] sysfs_warn_dup.cold+0x1c/0x2d [ 3242.517580][T16784] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3242.523637][T16784] sysfs_create_link+0x61/0xc0 [ 3242.528409][T16784] device_add+0x71c/0x1bc0 [ 3242.532808][T16784] ? uevent_show+0x360/0x360 [ 3242.537411][T16784] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3242.543422][T16784] wiphy_register+0x1c46/0x2720 [ 3242.548254][T16784] ? wiphy_unregister+0xf90/0xf90 [ 3242.553269][T16784] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3242.558971][T16784] ? retint_kernel+0x2b/0x2b [ 3242.563557][T16784] ? ieee80211_register_hw+0x11f4/0x36a0 [ 3242.569167][T16784] ieee80211_register_hw+0x13d4/0x36a0 [ 3242.574619][T16784] ? __debug_object_init+0x4a1/0xe20 [ 3242.579902][T16784] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3242.585460][T16784] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3242.591032][T16784] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3242.597273][T16784] ? memset+0x20/0x40 [ 3242.601245][T16784] ? __hrtimer_init+0x134/0x260 [ 3242.606079][T16784] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3242.611785][T16784] ? hwsim_register_received_nl+0x400/0x400 [ 3242.617657][T16784] hwsim_new_radio_nl+0x905/0xf60 [ 3242.622664][T16784] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3242.628531][T16784] ? cap_capable+0x1eb/0x250 [ 3242.633111][T16784] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3242.639412][T16784] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3242.645725][T16784] genl_rcv_msg+0x627/0xdf0 [ 3242.650211][T16784] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3242.656514][T16784] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3242.661777][T16784] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3242.667232][T16784] netlink_rcv_skb+0x15a/0x410 [ 3242.671974][T16784] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3242.678277][T16784] ? netlink_ack+0xa80/0xa80 [ 3242.682851][T16784] genl_rcv+0x24/0x40 [ 3242.686817][T16784] netlink_unicast+0x537/0x740 [ 3242.691561][T16784] ? netlink_attachskb+0x810/0x810 [ 3242.696646][T16784] ? _copy_from_iter_full+0x25c/0x870 [ 3242.701995][T16784] ? __phys_addr_symbol+0x2c/0x70 [ 3242.706997][T16784] ? __check_object_size+0x171/0x437 [ 3242.712263][T16784] netlink_sendmsg+0x882/0xe10 [ 3242.717021][T16784] ? netlink_unicast+0x740/0x740 [ 3242.721950][T16784] ? security_socket_sendmsg+0x45/0xb0 [ 3242.727392][T16784] ? netlink_unicast+0x740/0x740 [ 3242.732307][T16784] sock_sendmsg+0xcf/0x120 [ 3242.736709][T16784] ____sys_sendmsg+0x6b9/0x7d0 [ 3242.741451][T16784] ? kernel_sendmsg+0x50/0x50 [ 3242.746104][T16784] ? mark_lock+0xbc/0x1220 [ 3242.750505][T16784] ___sys_sendmsg+0x100/0x170 [ 3242.755159][T16784] ? sendmsg_copy_msghdr+0x70/0x70 [ 3242.760254][T16784] ? __fget_files+0x329/0x4f0 [ 3242.764909][T16784] ? ksys_dup3+0x3c0/0x3c0 [ 3242.769309][T16784] ? lock_acquire+0x197/0x420 [ 3242.773961][T16784] ? __might_fault+0xef/0x1d0 [ 3242.778614][T16784] ? __fget_light+0x208/0x270 [ 3242.783270][T16784] __sys_sendmsg+0xec/0x1b0 [ 3242.787758][T16784] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3242.792760][T16784] ? __x64_sys_futex+0x380/0x4f0 [ 3242.797693][T16784] ? trace_hardirqs_off_caller+0x55/0x230 [ 3242.803409][T16784] ? do_syscall_64+0x21/0x7d0 [ 3242.808071][T16784] do_syscall_64+0xf6/0x7d0 [ 3242.812558][T16784] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3242.818518][T16784] RIP: 0033:0x45c849 [ 3242.822496][T16784] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3242.842116][T16784] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3242.850520][T16784] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3242.858481][T16784] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3242.866444][T16784] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3242.874410][T16784] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3242.882473][T16784] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:46:39 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100611400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:39 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100911400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:39 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0348000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:39 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f03000f000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:39 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100411400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:39 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024ce0705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3252.188409][T16803] netlink: 16138 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3252.205385][T16803] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3252.205385][T16803] !' [ 3252.223131][T16803] CPU: 1 PID: 16803 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 23:46:39 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030224000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3252.231837][T16803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3252.242115][T16803] Call Trace: [ 3252.245416][T16803] dump_stack+0x188/0x20d [ 3252.249771][T16803] sysfs_warn_dup.cold+0x1c/0x2d [ 3252.254728][T16803] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3252.260813][T16803] sysfs_create_link+0x61/0xc0 [ 3252.265589][T16803] device_add+0x71c/0x1bc0 [ 3252.270026][T16803] ? uevent_show+0x360/0x360 [ 3252.274629][T16803] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3252.280623][T16803] wiphy_register+0x1c46/0x2720 23:46:39 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030a24000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3252.285493][T16803] ? wiphy_unregister+0xf90/0xf90 [ 3252.290525][T16803] ? __kmalloc+0x629/0x7a0 [ 3252.294952][T16803] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3252.300516][T16803] ieee80211_register_hw+0x13d4/0x36a0 [ 3252.305986][T16803] ? __debug_object_init+0x4a1/0xe20 [ 3252.311291][T16803] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3252.316761][T16803] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3252.322315][T16803] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3252.328310][T16803] ? memset+0x20/0x40 [ 3252.332301][T16803] ? __hrtimer_init+0x134/0x260 23:46:39 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030e24000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3252.337166][T16803] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3252.342905][T16803] ? vprintk_func+0x81/0x17e [ 3252.347530][T16803] ? hwsim_register_received_nl+0x400/0x400 [ 3252.353440][T16803] hwsim_new_radio_nl+0x905/0xf60 [ 3252.358477][T16803] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3252.364375][T16803] ? cap_capable+0x1eb/0x250 [ 3252.368978][T16803] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3252.375308][T16803] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3252.381648][T16803] genl_rcv_msg+0x627/0xdf0 23:46:39 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f036024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3252.386162][T16803] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3252.392516][T16803] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 3252.398340][T16803] netlink_rcv_skb+0x15a/0x410 [ 3252.403112][T16803] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3252.409458][T16803] ? netlink_ack+0xa80/0xa80 [ 3252.414067][T16803] genl_rcv+0x24/0x40 [ 3252.418058][T16803] netlink_unicast+0x537/0x740 [ 3252.422833][T16803] ? netlink_attachskb+0x810/0x810 [ 3252.427943][T16803] ? _copy_from_iter_full+0x25c/0x870 [ 3252.433319][T16803] ? __phys_addr_symbol+0x2c/0x70 [ 3252.438350][T16803] ? __check_object_size+0x171/0x437 [ 3252.443647][T16803] netlink_sendmsg+0x882/0xe10 [ 3252.448430][T16803] ? aa_af_perm+0x260/0x260 [ 3252.452946][T16803] ? netlink_unicast+0x740/0x740 [ 3252.457902][T16803] ? netlink_unicast+0x740/0x740 [ 3252.462852][T16803] sock_sendmsg+0xcf/0x120 [ 3252.467279][T16803] ____sys_sendmsg+0x6b9/0x7d0 [ 3252.472057][T16803] ? kernel_sendmsg+0x50/0x50 [ 3252.476748][T16803] ? mark_lock+0xbc/0x1220 [ 3252.481192][T16803] ___sys_sendmsg+0x100/0x170 23:46:39 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030035000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3252.485879][T16803] ? sendmsg_copy_msghdr+0x70/0x70 [ 3252.491008][T16803] ? __fget_files+0x329/0x4f0 [ 3252.495716][T16803] ? ksys_dup3+0x3c0/0x3c0 [ 3252.500139][T16803] ? lock_acquire+0x197/0x420 [ 3252.504827][T16803] ? __might_fault+0xef/0x1d0 [ 3252.509521][T16803] ? __fget_light+0x208/0x270 [ 3252.514219][T16803] __sys_sendmsg+0xec/0x1b0 [ 3252.518737][T16803] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3252.523767][T16803] ? __x64_sys_futex+0x380/0x4f0 [ 3252.528723][T16803] ? trace_hardirqs_off_caller+0x55/0x230 [ 3252.534466][T16803] ? do_syscall_64+0x21/0x7d0 23:46:39 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f03003f000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3252.539158][T16803] do_syscall_64+0xf6/0x7d0 [ 3252.543674][T16803] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3252.549567][T16803] RIP: 0033:0x45c849 [ 3252.553465][T16803] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3252.573093][T16803] RSP: 002b:00007fce66789c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3252.581535][T16803] RAX: ffffffffffffffda RBX: 00007fce6678a6d4 RCX: 000000000045c849 [ 3252.589517][T16803] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3252.597497][T16803] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3252.605476][T16803] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3252.613454][T16803] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac [ 3252.635668][T16802] netlink: 18399 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3252.671361][T16802] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3252.671361][T16802] !' [ 3252.681225][T16802] CPU: 1 PID: 16802 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3252.689895][T16802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3252.699959][T16802] Call Trace: [ 3252.703258][T16802] dump_stack+0x188/0x20d [ 3252.707766][T16802] sysfs_warn_dup.cold+0x1c/0x2d [ 3252.712690][T16802] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3252.718740][T16802] sysfs_create_link+0x61/0xc0 [ 3252.723497][T16802] device_add+0x71c/0x1bc0 [ 3252.727916][T16802] ? uevent_show+0x360/0x360 [ 3252.732489][T16802] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3252.738466][T16802] wiphy_register+0x1c46/0x2720 [ 3252.743320][T16802] ? wiphy_unregister+0xf90/0xf90 [ 3252.748386][T16802] ? __kmalloc+0x629/0x7a0 [ 3252.752783][T16802] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3252.758349][T16802] ? ieee80211_register_hw+0x2048/0x36a0 [ 3252.763978][T16802] ieee80211_register_hw+0x13d4/0x36a0 [ 3252.769484][T16802] ? calibrate_delay.cold+0x3db/0x3f6 [ 3252.774863][T16802] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3252.780330][T16802] ? __hrtimer_init+0x205/0x260 [ 3252.785197][T16802] ? __sanitizer_cov_trace_pc+0x50/0x50 [ 3252.790740][T16802] ? __hrtimer_init+0x134/0x260 [ 3252.795594][T16802] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3252.801332][T16802] ? hwsim_register_received_nl+0x400/0x400 [ 3252.807274][T16802] hwsim_new_radio_nl+0x905/0xf60 [ 3252.812284][T16802] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3252.818164][T16802] ? retint_kernel+0x2b/0x2b [ 3252.822753][T16802] ? cap_capable+0x1eb/0x250 [ 3252.827340][T16802] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3252.833648][T16802] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3252.839989][T16802] genl_rcv_msg+0x627/0xdf0 [ 3252.844510][T16802] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3252.850842][T16802] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3252.856122][T16802] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3252.863332][T16802] netlink_rcv_skb+0x15a/0x410 [ 3252.868091][T16802] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3252.874405][T16802] ? netlink_ack+0xa80/0xa80 [ 3252.878987][T16802] genl_rcv+0x24/0x40 [ 3252.883054][T16802] netlink_unicast+0x537/0x740 [ 3252.887818][T16802] ? netlink_attachskb+0x810/0x810 [ 3252.892908][T16802] ? _copy_from_iter_full+0x25c/0x870 [ 3252.898278][T16802] ? __phys_addr_symbol+0x2c/0x70 [ 3252.903302][T16802] ? __check_object_size+0x171/0x437 [ 3252.908586][T16802] netlink_sendmsg+0x882/0xe10 [ 3252.913334][T16802] ? aa_af_perm+0x260/0x260 [ 3252.917829][T16802] ? netlink_unicast+0x740/0x740 [ 3252.922864][T16802] ? netlink_unicast+0x740/0x740 [ 3252.927797][T16802] sock_sendmsg+0xcf/0x120 [ 3252.932200][T16802] ____sys_sendmsg+0x6b9/0x7d0 [ 3252.936960][T16802] ? kernel_sendmsg+0x50/0x50 [ 3252.941632][T16802] ? mark_lock+0xbc/0x1220 [ 3252.946056][T16802] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3252.951529][T16802] ___sys_sendmsg+0x100/0x170 [ 3252.956226][T16802] ? sendmsg_copy_msghdr+0x70/0x70 [ 3252.961351][T16802] ? __fget_files+0x329/0x4f0 [ 3252.966038][T16802] ? ksys_dup3+0x3c0/0x3c0 [ 3252.970453][T16802] ? lock_acquire+0x197/0x420 [ 3252.975121][T16802] ? __might_fault+0xef/0x1d0 [ 3252.979791][T16802] ? __fget_light+0x208/0x270 [ 3252.984462][T16802] __sys_sendmsg+0xec/0x1b0 [ 3252.988954][T16802] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3252.993982][T16802] ? __x64_sys_futex+0x380/0x4f0 [ 3252.998912][T16802] ? trace_hardirqs_off_caller+0x55/0x230 [ 3253.004639][T16802] ? do_syscall_64+0x21/0x7d0 [ 3253.009317][T16802] do_syscall_64+0xf6/0x7d0 [ 3253.013824][T16802] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3253.019703][T16802] RIP: 0033:0x45c849 [ 3253.023583][T16802] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3253.043169][T16802] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3253.051575][T16802] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3253.059529][T16802] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3253.067489][T16802] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3253.075448][T16802] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3253.083400][T16802] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3253.098489][T16800] netlink: 16138 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3253.112234][T16800] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3253.112234][T16800] !' [ 3253.122235][T16800] CPU: 0 PID: 16800 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3253.130976][T16800] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3253.141065][T16800] Call Trace: [ 3253.144355][T16800] dump_stack+0x188/0x20d [ 3253.148674][T16800] sysfs_warn_dup.cold+0x1c/0x2d [ 3253.153624][T16800] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3253.159682][T16800] sysfs_create_link+0x61/0xc0 [ 3253.164452][T16800] device_add+0x71c/0x1bc0 [ 3253.168851][T16800] ? uevent_show+0x360/0x360 [ 3253.173436][T16800] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3253.179399][T16800] wiphy_register+0x1c46/0x2720 [ 3253.184238][T16800] ? wiphy_unregister+0xf90/0xf90 [ 3253.189294][T16800] ? __kmalloc+0x629/0x7a0 [ 3253.193707][T16800] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3253.199237][T16800] ieee80211_register_hw+0x13d4/0x36a0 [ 3253.204692][T16800] ? __debug_object_init+0x4a1/0xe20 [ 3253.210039][T16800] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3253.215487][T16800] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3253.221019][T16800] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3253.227030][T16800] ? memset+0x20/0x40 [ 3253.231007][T16800] ? __hrtimer_init+0x134/0x260 [ 3253.235840][T16800] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3253.241568][T16800] ? vprintk_func+0x81/0x17e [ 3253.246155][T16800] ? hwsim_register_received_nl+0x400/0x400 [ 3253.252029][T16800] hwsim_new_radio_nl+0x905/0xf60 [ 3253.257045][T16800] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3253.262931][T16800] ? cap_capable+0x1eb/0x250 [ 3253.267504][T16800] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3253.273808][T16800] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3253.280117][T16800] genl_rcv_msg+0x627/0xdf0 [ 3253.284605][T16800] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3253.290923][T16800] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3253.296187][T16800] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3253.301637][T16800] netlink_rcv_skb+0x15a/0x410 [ 3253.306397][T16800] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3253.312733][T16800] ? netlink_ack+0xa80/0xa80 [ 3253.317332][T16800] genl_rcv+0x24/0x40 [ 3253.321404][T16800] netlink_unicast+0x537/0x740 [ 3253.326172][T16800] ? netlink_attachskb+0x810/0x810 [ 3253.331276][T16800] ? _copy_from_iter_full+0x25c/0x870 [ 3253.336627][T16800] ? __phys_addr_symbol+0x2c/0x70 [ 3253.341644][T16800] ? __check_object_size+0x171/0x437 [ 3253.346913][T16800] netlink_sendmsg+0x882/0xe10 [ 3253.351705][T16800] ? aa_af_perm+0x260/0x260 [ 3253.356208][T16800] ? netlink_unicast+0x740/0x740 [ 3253.361144][T16800] ? netlink_unicast+0x740/0x740 [ 3253.366195][T16800] sock_sendmsg+0xcf/0x120 [ 3253.370600][T16800] ____sys_sendmsg+0x6b9/0x7d0 [ 3253.375351][T16800] ? kernel_sendmsg+0x50/0x50 [ 3253.380019][T16800] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3253.385465][T16800] ___sys_sendmsg+0x100/0x170 [ 3253.390128][T16800] ? sendmsg_copy_msghdr+0x70/0x70 [ 3253.395261][T16800] ? __fget_files+0x329/0x4f0 [ 3253.399935][T16800] ? ksys_dup3+0x3c0/0x3c0 [ 3253.404328][T16800] ? lock_acquire+0x197/0x420 [ 3253.408984][T16800] ? __might_fault+0xef/0x1d0 [ 3253.413684][T16800] ? __fget_light+0x208/0x270 [ 3253.418345][T16800] __sys_sendmsg+0xec/0x1b0 [ 3253.422835][T16800] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3253.427848][T16800] ? trace_hardirqs_off_caller+0x55/0x230 [ 3253.433551][T16800] ? do_syscall_64+0x21/0x7d0 [ 3253.438212][T16800] do_syscall_64+0xf6/0x7d0 [ 3253.442716][T16800] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3253.448605][T16800] RIP: 0033:0x45c849 [ 3253.452485][T16800] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3253.472084][T16800] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3253.480480][T16800] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3253.488441][T16800] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3253.496410][T16800] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3253.504362][T16800] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3253.512328][T16800] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3253.524705][T16802] netlink: 18399 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3253.550719][T16802] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3253.550719][T16802] !' [ 3253.580791][T16802] CPU: 1 PID: 16802 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3253.589499][T16802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3253.599554][T16802] Call Trace: [ 3253.602829][T16802] dump_stack+0x188/0x20d [ 3253.607147][T16802] sysfs_warn_dup.cold+0x1c/0x2d [ 3253.612070][T16802] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3253.618115][T16802] sysfs_create_link+0x61/0xc0 [ 3253.622858][T16802] device_add+0x71c/0x1bc0 [ 3253.627253][T16802] ? uevent_show+0x360/0x360 [ 3253.631849][T16802] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3253.637826][T16802] wiphy_register+0x1c46/0x2720 [ 3253.642672][T16802] ? wiphy_unregister+0xf90/0xf90 [ 3253.647709][T16802] ? __kmalloc+0x629/0x7a0 [ 3253.652153][T16802] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3253.657686][T16802] ieee80211_register_hw+0x13d4/0x36a0 [ 3253.663137][T16802] ? __debug_object_init+0x4a1/0xe20 [ 3253.668412][T16802] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3253.673851][T16802] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3253.679385][T16802] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3253.685350][T16802] ? memset+0x20/0x40 [ 3253.689316][T16802] ? __hrtimer_init+0x134/0x260 [ 3253.694163][T16802] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3253.699899][T16802] ? vprintk_func+0x81/0x17e [ 3253.704484][T16802] ? hwsim_register_received_nl+0x400/0x400 [ 3253.710357][T16802] hwsim_new_radio_nl+0x905/0xf60 [ 3253.715362][T16802] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3253.721247][T16802] ? retint_kernel+0x2b/0x2b [ 3253.725811][T16802] ? cap_capable+0x1eb/0x250 [ 3253.730392][T16802] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3253.736709][T16802] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3253.743108][T16802] genl_rcv_msg+0x627/0xdf0 [ 3253.747633][T16802] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3253.753960][T16802] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 3253.759751][T16802] netlink_rcv_skb+0x15a/0x410 [ 3253.764498][T16802] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3253.770929][T16802] ? netlink_ack+0xa80/0xa80 [ 3253.775508][T16802] genl_rcv+0x24/0x40 [ 3253.779483][T16802] netlink_unicast+0x537/0x740 [ 3253.784244][T16802] ? netlink_attachskb+0x810/0x810 [ 3253.789350][T16802] ? _copy_from_iter_full+0x25c/0x870 [ 3253.794701][T16802] ? __phys_addr_symbol+0x2c/0x70 [ 3253.799743][T16802] ? __check_object_size+0x171/0x437 [ 3253.805048][T16802] netlink_sendmsg+0x882/0xe10 [ 3253.809801][T16802] ? aa_af_perm+0x260/0x260 [ 3253.814284][T16802] ? netlink_unicast+0x740/0x740 [ 3253.819226][T16802] ? netlink_unicast+0x740/0x740 [ 3253.824152][T16802] sock_sendmsg+0xcf/0x120 [ 3253.828552][T16802] ____sys_sendmsg+0x6b9/0x7d0 [ 3253.833308][T16802] ? kernel_sendmsg+0x50/0x50 [ 3253.838018][T16802] ? copy_msghdr_from_user+0x13/0x420 [ 3253.843392][T16802] ___sys_sendmsg+0x100/0x170 [ 3253.848054][T16802] ? sendmsg_copy_msghdr+0x70/0x70 [ 3253.853164][T16802] ? __fget_files+0x329/0x4f0 [ 3253.857823][T16802] ? ksys_dup3+0x3c0/0x3c0 [ 3253.862230][T16802] ? lock_acquire+0x197/0x420 [ 3253.866947][T16802] ? __might_fault+0xef/0x1d0 [ 3253.871609][T16802] ? __fget_light+0x208/0x270 [ 3253.876273][T16802] __sys_sendmsg+0xec/0x1b0 [ 3253.880773][T16802] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3253.885800][T16802] ? __x64_sys_futex+0x380/0x4f0 [ 3253.890731][T16802] ? trace_hardirqs_off_caller+0x55/0x230 [ 3253.896472][T16802] ? do_syscall_64+0x21/0x7d0 [ 3253.901132][T16802] do_syscall_64+0xf6/0x7d0 [ 3253.905617][T16802] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3253.911531][T16802] RIP: 0033:0x45c849 [ 3253.915403][T16802] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3253.934999][T16802] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3253.943426][T16802] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3253.951377][T16802] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3253.959332][T16802] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3253.967302][T16802] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3253.975262][T16802] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:46:54 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100611400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:54 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f03000f000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:54 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100a11400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:54 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0448000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:54 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000c05d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:54 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0248000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:46:54 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030035000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3267.688426][T16839] netlink: 18400 bytes leftover after parsing attributes in process `syz-executor.0'. 23:46:54 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024020705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3267.732846][T16839] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3267.732846][T16839] !' [ 3267.748734][T16839] CPU: 1 PID: 16839 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3267.757433][T16839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3267.767494][T16839] Call Trace: [ 3267.770797][T16839] dump_stack+0x188/0x20d [ 3267.775146][T16839] sysfs_warn_dup.cold+0x1c/0x2d 23:46:54 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f0300240a0705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3267.780106][T16839] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3267.786196][T16839] sysfs_create_link+0x61/0xc0 [ 3267.790974][T16839] device_add+0x71c/0x1bc0 [ 3267.795409][T16839] ? uevent_show+0x360/0x360 [ 3267.800016][T16839] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3267.806011][T16839] wiphy_register+0x1c46/0x2720 [ 3267.810885][T16839] ? wiphy_unregister+0xf90/0xf90 [ 3267.815919][T16839] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3267.821648][T16839] ? retint_kernel+0x2b/0x2b [ 3267.826260][T16839] ? ieee80211_register_hw+0xc7c/0x36a0 23:46:54 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f0300240e0705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3267.831830][T16839] ieee80211_register_hw+0x13d4/0x36a0 [ 3267.837303][T16839] ? __debug_object_init+0x4a1/0xe20 [ 3267.842612][T16839] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3267.848203][T16839] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3267.853769][T16839] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3267.859774][T16839] ? memset+0x20/0x40 [ 3267.863767][T16839] ? __hrtimer_init+0x134/0x260 [ 3267.868640][T16839] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3267.874385][T16839] ? hwsim_register_received_nl+0x400/0x400 23:46:55 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024600705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3267.880300][T16839] hwsim_new_radio_nl+0x905/0xf60 [ 3267.885342][T16839] ? retint_kernel+0x2b/0x2b [ 3267.889949][T16839] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3267.895966][T16839] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3267.902315][T16839] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3267.908771][T16839] genl_rcv_msg+0x627/0xdf0 [ 3267.913295][T16839] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3267.919634][T16839] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3267.925102][T16839] ? smp_apic_timer_interrupt+0x1b6/0x600 23:46:55 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024003505d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3267.930840][T16839] ? netlink_rcv_skb+0x308/0x410 [ 3267.935811][T16839] netlink_rcv_skb+0x15a/0x410 [ 3267.940589][T16839] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3267.946932][T16839] ? netlink_ack+0xa80/0xa80 [ 3267.951550][T16839] genl_rcv+0x24/0x40 [ 3267.955536][T16839] netlink_unicast+0x537/0x740 [ 3267.960302][T16839] ? netlink_attachskb+0x810/0x810 [ 3267.965418][T16839] ? _copy_from_iter_full+0x25c/0x870 [ 3267.970797][T16839] ? __phys_addr_symbol+0x2c/0x70 [ 3267.975939][T16839] ? __check_object_size+0x171/0x437 [ 3267.981230][T16839] netlink_sendmsg+0x882/0xe10 [ 3267.986013][T16839] ? aa_af_perm+0x260/0x260 [ 3267.990528][T16839] ? netlink_unicast+0x740/0x740 [ 3267.995489][T16839] ? netlink_unicast+0x740/0x740 [ 3268.000445][T16839] sock_sendmsg+0xcf/0x120 [ 3268.004874][T16839] ____sys_sendmsg+0x6b9/0x7d0 [ 3268.009633][T16839] ? kernel_sendmsg+0x50/0x50 [ 3268.014429][T16839] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3268.019884][T16839] ___sys_sendmsg+0x100/0x170 [ 3268.024553][T16839] ? retint_kernel+0x2b/0x2b [ 3268.029154][T16839] ? sendmsg_copy_msghdr+0x70/0x70 [ 3268.034263][T16839] ? __fget_files+0x30c/0x4f0 [ 3268.038961][T16839] ? __fget_files+0x329/0x4f0 [ 3268.043628][T16839] ? ksys_dup3+0x3c0/0x3c0 [ 3268.048048][T16839] ? lock_acquire+0x197/0x420 [ 3268.052728][T16839] ? __might_fault+0xef/0x1d0 [ 3268.057417][T16839] ? __fget_light+0x208/0x270 [ 3268.062084][T16839] __sys_sendmsg+0xec/0x1b0 [ 3268.066603][T16839] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3268.071676][T16839] ? do_syscall_64+0x4f/0x7d0 [ 3268.076384][T16839] do_syscall_64+0xf6/0x7d0 [ 3268.080873][T16839] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3268.086742][T16839] RIP: 0033:0x45c849 [ 3268.090670][T16839] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3268.110255][T16839] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3268.118689][T16839] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3268.126661][T16839] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3268.134621][T16839] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3268.142673][T16839] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3268.150649][T16839] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3268.184253][T16840] netlink: 15882 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3268.205326][T16840] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3268.205326][T16840] !' [ 3268.215347][T16840] CPU: 0 PID: 16840 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3268.224037][T16840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3268.234080][T16840] Call Trace: [ 3268.237357][T16840] dump_stack+0x188/0x20d [ 3268.241677][T16840] sysfs_warn_dup.cold+0x1c/0x2d [ 3268.246606][T16840] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3268.252677][T16840] sysfs_create_link+0x61/0xc0 [ 3268.257434][T16840] device_add+0x71c/0x1bc0 [ 3268.261834][T16840] ? __sanitizer_cov_trace_switch+0xe/0x70 [ 3268.267619][T16840] ? uevent_show+0x360/0x360 [ 3268.272205][T16840] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3268.278165][T16840] wiphy_register+0x1c46/0x2720 [ 3268.283043][T16840] ? wiphy_unregister+0xf90/0xf90 [ 3268.288048][T16840] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3268.293858][T16840] ? retint_kernel+0x2b/0x2b [ 3268.298434][T16840] ? ieee80211_register_hw+0x11f4/0x36a0 [ 3268.304045][T16840] ieee80211_register_hw+0x13d4/0x36a0 [ 3268.309490][T16840] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3268.314946][T16840] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3268.320514][T16840] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3268.326487][T16840] ? memset+0x20/0x40 [ 3268.330458][T16840] ? __hrtimer_init+0x134/0x260 [ 3268.335291][T16840] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3268.340999][T16840] ? vprintk_func+0x81/0x17e [ 3268.345586][T16840] ? hwsim_register_received_nl+0x400/0x400 [ 3268.351466][T16840] hwsim_new_radio_nl+0x905/0xf60 [ 3268.356485][T16840] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3268.361766][T16840] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3268.367682][T16840] genl_rcv_msg+0x627/0xdf0 [ 3268.372196][T16840] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3268.378507][T16840] ? mark_held_locks+0x9f/0xe0 [ 3268.383262][T16840] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3268.388767][T16840] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3268.394485][T16840] ? retint_kernel+0x2b/0x2b [ 3268.399073][T16840] netlink_rcv_skb+0x15a/0x410 [ 3268.403818][T16840] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3268.410124][T16840] ? netlink_ack+0xa80/0xa80 [ 3268.414705][T16840] genl_rcv+0x24/0x40 [ 3268.418666][T16840] netlink_unicast+0x537/0x740 [ 3268.423427][T16840] ? netlink_attachskb+0x810/0x810 [ 3268.428547][T16840] ? _copy_from_iter_full+0x25c/0x870 [ 3268.433899][T16840] ? __phys_addr_symbol+0x2c/0x70 [ 3268.438901][T16840] ? __check_object_size+0x171/0x437 [ 3268.444172][T16840] netlink_sendmsg+0x882/0xe10 [ 3268.448930][T16840] ? aa_af_perm+0x260/0x260 [ 3268.453433][T16840] ? netlink_unicast+0x740/0x740 [ 3268.458365][T16840] ? netlink_unicast+0x740/0x740 [ 3268.463282][T16840] sock_sendmsg+0xcf/0x120 [ 3268.467693][T16840] ____sys_sendmsg+0x6b9/0x7d0 [ 3268.472449][T16840] ? kernel_sendmsg+0x50/0x50 [ 3268.477114][T16840] ? mark_lock+0xbc/0x1220 [ 3268.481535][T16840] ___sys_sendmsg+0x100/0x170 [ 3268.486205][T16840] ? sendmsg_copy_msghdr+0x70/0x70 [ 3268.491306][T16840] ? __fget_files+0x329/0x4f0 [ 3268.495973][T16840] ? ksys_dup3+0x3c0/0x3c0 [ 3268.500371][T16840] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3268.506085][T16840] ? retint_kernel+0x2b/0x2b [ 3268.510662][T16840] ? __fget_light+0x208/0x270 [ 3268.515335][T16840] __sys_sendmsg+0xec/0x1b0 [ 3268.519822][T16840] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3268.524828][T16840] ? __x64_sys_futex+0x380/0x4f0 [ 3268.529755][T16840] ? trace_hardirqs_off_caller+0x55/0x230 [ 3268.535457][T16840] ? do_syscall_64+0x21/0x7d0 [ 3268.540118][T16840] do_syscall_64+0xf6/0x7d0 [ 3268.544610][T16840] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3268.550482][T16840] RIP: 0033:0x45c849 [ 3268.554445][T16840] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3268.574031][T16840] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3268.582422][T16840] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3268.590374][T16840] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3268.598325][T16840] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3268.606281][T16840] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3268.614247][T16840] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3268.627364][T16858] netlink: 'syz-executor.5': attribute type 8 has an invalid length. [ 3268.639005][T16858] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3268.671125][T16858] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3268.671125][T16858] !' [ 3268.687344][T16858] CPU: 0 PID: 16858 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3268.696055][T16858] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3268.706116][T16858] Call Trace: [ 3268.709408][T16858] dump_stack+0x188/0x20d [ 3268.713729][T16858] sysfs_warn_dup.cold+0x1c/0x2d [ 3268.718650][T16858] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3268.724699][T16858] sysfs_create_link+0x61/0xc0 [ 3268.729442][T16858] device_add+0x71c/0x1bc0 [ 3268.733843][T16858] ? uevent_show+0x360/0x360 [ 3268.738416][T16858] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3268.744376][T16858] wiphy_register+0x1c46/0x2720 [ 3268.749211][T16858] ? wiphy_unregister+0xf90/0xf90 [ 3268.754222][T16858] ? retint_kernel+0x2b/0x2b [ 3268.758796][T16858] ? ieee80211_register_hw+0xcf7/0x36a0 [ 3268.764324][T16858] ieee80211_register_hw+0x13d4/0x36a0 [ 3268.769762][T16858] ? __debug_object_init+0x4a1/0xe20 [ 3268.775030][T16858] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3268.780483][T16858] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3268.786007][T16858] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3268.791980][T16858] ? memset+0x20/0x40 [ 3268.795948][T16858] ? __hrtimer_init+0x134/0x260 [ 3268.800798][T16858] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3268.806539][T16858] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3268.811814][T16858] ? hwsim_register_received_nl+0x400/0x400 [ 3268.817694][T16858] hwsim_new_radio_nl+0x905/0xf60 [ 3268.822708][T16858] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3268.828032][T16858] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3268.833922][T16858] genl_rcv_msg+0x627/0xdf0 [ 3268.838459][T16858] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3268.844779][T16858] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3268.850135][T16858] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3268.855583][T16858] netlink_rcv_skb+0x15a/0x410 [ 3268.860342][T16858] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3268.866664][T16858] ? netlink_ack+0xa80/0xa80 [ 3268.871246][T16858] genl_rcv+0x24/0x40 [ 3268.875224][T16858] netlink_unicast+0x537/0x740 [ 3268.879994][T16858] ? netlink_attachskb+0x810/0x810 [ 3268.885099][T16858] ? _copy_from_iter_full+0x25c/0x870 [ 3268.890458][T16858] ? __phys_addr_symbol+0x2c/0x70 [ 3268.895469][T16858] ? __check_object_size+0x171/0x437 [ 3268.900741][T16858] netlink_sendmsg+0x882/0xe10 [ 3268.905546][T16858] ? aa_af_perm+0x260/0x260 [ 3268.910118][T16858] ? netlink_unicast+0x740/0x740 [ 3268.915038][T16858] ? netlink_unicast+0x740/0x740 [ 3268.919956][T16858] sock_sendmsg+0xcf/0x120 [ 3268.924357][T16858] ____sys_sendmsg+0x6b9/0x7d0 [ 3268.929159][T16858] ? kernel_sendmsg+0x50/0x50 [ 3268.933872][T16858] ? mark_lock+0xbc/0x1220 [ 3268.938271][T16858] ___sys_sendmsg+0x100/0x170 [ 3268.942928][T16858] ? sendmsg_copy_msghdr+0x70/0x70 [ 3268.948021][T16858] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3268.953459][T16858] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3268.958725][T16858] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3268.964164][T16858] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3268.969863][T16858] ? retint_kernel+0x2b/0x2b [ 3268.974436][T16858] ? sockfd_lookup_light+0x73/0x170 [ 3268.979612][T16858] ? __sanitizer_cov_trace_pc+0x37/0x50 [ 3268.985156][T16858] __sys_sendmsg+0xec/0x1b0 [ 3268.989654][T16858] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3268.994660][T16858] ? __x64_sys_futex+0x380/0x4f0 [ 3268.999592][T16858] ? trace_hardirqs_off_caller+0x55/0x230 [ 3269.005349][T16858] ? do_syscall_64+0x21/0x7d0 [ 3269.010013][T16858] do_syscall_64+0xf6/0x7d0 [ 3269.014511][T16858] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3269.020383][T16858] RIP: 0033:0x45c849 [ 3269.024279][T16858] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3269.043963][T16858] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3269.052363][T16858] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3269.060324][T16858] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3269.068387][T16858] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3269.076348][T16858] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3269.084302][T16858] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3269.106129][T16839] netlink: 18400 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3269.124466][T16839] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3269.124466][T16839] !' [ 3269.138781][T16839] CPU: 0 PID: 16839 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3269.147471][T16839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3269.157510][T16839] Call Trace: [ 3269.160790][T16839] dump_stack+0x188/0x20d [ 3269.165117][T16839] sysfs_warn_dup.cold+0x1c/0x2d [ 3269.170039][T16839] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3269.176102][T16839] sysfs_create_link+0x61/0xc0 [ 3269.180848][T16839] device_add+0x71c/0x1bc0 [ 3269.185262][T16839] ? uevent_show+0x360/0x360 [ 3269.189833][T16839] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3269.195807][T16839] wiphy_register+0x1c46/0x2720 [ 3269.200655][T16839] ? wiphy_unregister+0xf90/0xf90 [ 3269.205726][T16839] ? __kmalloc+0x629/0x7a0 [ 3269.210132][T16839] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3269.215662][T16839] ieee80211_register_hw+0x13d4/0x36a0 [ 3269.221156][T16839] ? __debug_object_init+0x4a1/0xe20 [ 3269.226426][T16839] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3269.231881][T16839] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3269.237406][T16839] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3269.243381][T16839] ? memset+0x20/0x40 [ 3269.247348][T16839] ? __hrtimer_init+0x134/0x260 [ 3269.252180][T16839] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3269.258037][T16839] ? vprintk_func+0x81/0x17e [ 3269.262636][T16839] ? hwsim_register_received_nl+0x400/0x400 [ 3269.268572][T16839] hwsim_new_radio_nl+0x905/0xf60 [ 3269.273596][T16839] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3269.279481][T16839] ? cap_capable+0x1eb/0x250 [ 3269.284057][T16839] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3269.290361][T16839] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3269.296681][T16839] genl_rcv_msg+0x627/0xdf0 [ 3269.301179][T16839] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3269.307552][T16839] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3269.313602][T16839] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3269.319311][T16839] ? netlink_rcv_skb+0x308/0x410 [ 3269.324247][T16839] netlink_rcv_skb+0x15a/0x410 [ 3269.328991][T16839] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3269.335297][T16839] ? netlink_ack+0xa80/0xa80 [ 3269.339884][T16839] genl_rcv+0x24/0x40 [ 3269.343848][T16839] netlink_unicast+0x537/0x740 [ 3269.348594][T16839] ? netlink_attachskb+0x810/0x810 [ 3269.353722][T16839] ? _copy_from_iter_full+0x25c/0x870 [ 3269.359085][T16839] ? __phys_addr_symbol+0x2c/0x70 [ 3269.364089][T16839] ? __check_object_size+0x171/0x437 [ 3269.369366][T16839] netlink_sendmsg+0x882/0xe10 [ 3269.374116][T16839] ? aa_af_perm+0x260/0x260 [ 3269.378598][T16839] ? netlink_unicast+0x740/0x740 [ 3269.383521][T16839] ? netlink_unicast+0x740/0x740 [ 3269.388456][T16839] sock_sendmsg+0xcf/0x120 [ 3269.392854][T16839] ____sys_sendmsg+0x6b9/0x7d0 [ 3269.397615][T16839] ? kernel_sendmsg+0x50/0x50 [ 3269.402279][T16839] ? mark_lock+0xbc/0x1220 [ 3269.406683][T16839] ___sys_sendmsg+0x100/0x170 [ 3269.411371][T16839] ? sendmsg_copy_msghdr+0x70/0x70 [ 3269.416481][T16839] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3269.422032][T16839] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3269.427305][T16839] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3269.432800][T16839] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3269.438517][T16839] ? retint_kernel+0x2b/0x2b [ 3269.443093][T16839] ? sockfd_lookup_light+0x10a/0x170 [ 3269.448358][T16839] ? sockfd_lookup_light+0x130/0x170 [ 3269.453627][T16839] __sys_sendmsg+0xec/0x1b0 [ 3269.458111][T16839] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3269.463115][T16839] ? __x64_sys_futex+0x380/0x4f0 [ 3269.468039][T16839] ? trace_hardirqs_off_caller+0x55/0x230 [ 3269.473739][T16839] ? do_syscall_64+0x21/0x7d0 [ 3269.478437][T16839] do_syscall_64+0xf6/0x7d0 [ 3269.482927][T16839] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3269.488795][T16839] RIP: 0033:0x45c849 [ 3269.492667][T16839] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3269.512266][T16839] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3269.520787][T16839] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3269.528737][T16839] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3269.536687][T16839] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3269.544788][T16839] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3269.552779][T16839] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:47:08 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100811400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:08 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100e11400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:08 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024001005d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:08 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0548000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:08 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0248000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:08 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000e05d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3281.079978][T16878] netlink: 14858 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3281.092400][T16878] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3281.092400][T16878] !' [ 3281.109395][T16878] CPU: 0 PID: 16878 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3281.118106][T16878] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3281.128170][T16878] Call Trace: [ 3281.131468][T16878] dump_stack+0x188/0x20d [ 3281.135805][T16878] sysfs_warn_dup.cold+0x1c/0x2d [ 3281.140744][T16878] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3281.146811][T16878] sysfs_create_link+0x61/0xc0 [ 3281.151559][T16878] device_add+0x71c/0x1bc0 [ 3281.155959][T16878] ? uevent_show+0x360/0x360 [ 3281.160533][T16878] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3281.166510][T16878] wiphy_register+0x1c46/0x2720 [ 3281.171403][T16878] ? wiphy_unregister+0xf90/0xf90 [ 3281.176414][T16878] ? __kmalloc+0x629/0x7a0 [ 3281.180812][T16878] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3281.186342][T16878] ieee80211_register_hw+0x13d4/0x36a0 [ 3281.191789][T16878] ? __debug_object_init+0x4a1/0xe20 [ 3281.197057][T16878] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3281.202500][T16878] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3281.208074][T16878] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3281.214046][T16878] ? memset+0x20/0x40 [ 3281.218026][T16878] ? __hrtimer_init+0x134/0x260 [ 3281.222918][T16878] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3281.228624][T16878] ? vprintk_func+0x81/0x17e [ 3281.233215][T16878] ? hwsim_register_received_nl+0x400/0x400 [ 3281.239105][T16878] hwsim_new_radio_nl+0x905/0xf60 [ 3281.244119][T16878] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3281.250010][T16878] ? cap_capable+0x1eb/0x250 [ 3281.254599][T16878] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3281.260907][T16878] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3281.267219][T16878] genl_rcv_msg+0x627/0xdf0 [ 3281.271704][T16878] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3281.278037][T16878] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 3281.283831][T16878] netlink_rcv_skb+0x15a/0x410 [ 3281.288576][T16878] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3281.294882][T16878] ? netlink_ack+0xa80/0xa80 [ 3281.299462][T16878] genl_rcv+0x24/0x40 [ 3281.303423][T16878] netlink_unicast+0x537/0x740 [ 3281.308169][T16878] ? netlink_attachskb+0x810/0x810 [ 3281.313262][T16878] ? _copy_from_iter_full+0x25c/0x870 [ 3281.318616][T16878] ? __phys_addr_symbol+0x2c/0x70 [ 3281.323623][T16878] ? __check_object_size+0x171/0x437 [ 3281.328888][T16878] netlink_sendmsg+0x882/0xe10 [ 3281.333644][T16878] ? aa_af_perm+0x260/0x260 [ 3281.338128][T16878] ? netlink_unicast+0x740/0x740 [ 3281.343054][T16878] ? netlink_unicast+0x740/0x740 [ 3281.347991][T16878] sock_sendmsg+0xcf/0x120 [ 3281.352401][T16878] ____sys_sendmsg+0x6b9/0x7d0 [ 3281.357158][T16878] ? kernel_sendmsg+0x50/0x50 [ 3281.361821][T16878] ? mark_lock+0xbc/0x1220 [ 3281.366229][T16878] ___sys_sendmsg+0x100/0x170 [ 3281.370931][T16878] ? sendmsg_copy_msghdr+0x70/0x70 [ 3281.376027][T16878] ? __fget_files+0x329/0x4f0 [ 3281.380688][T16878] ? ksys_dup3+0x3c0/0x3c0 [ 3281.385082][T16878] ? lock_acquire+0x197/0x420 [ 3281.389750][T16878] ? __might_fault+0xef/0x1d0 [ 3281.394424][T16878] ? __fget_light+0x208/0x270 [ 3281.399083][T16878] __sys_sendmsg+0xec/0x1b0 [ 3281.403568][T16878] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3281.408589][T16878] ? __x64_sys_futex+0x380/0x4f0 [ 3281.413517][T16878] ? trace_hardirqs_off_caller+0x55/0x230 [ 3281.419223][T16878] ? do_syscall_64+0x21/0x7d0 [ 3281.423894][T16878] do_syscall_64+0xf6/0x7d0 [ 3281.428382][T16878] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3281.434256][T16878] RIP: 0033:0x45c849 [ 3281.438130][T16878] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3281.457720][T16878] RSP: 002b:00007fce66789c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3281.466113][T16878] RAX: ffffffffffffffda RBX: 00007fce6678a6d4 RCX: 000000000045c849 23:47:08 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024003505d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3281.474085][T16878] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3281.482039][T16878] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3281.489992][T16878] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3281.497957][T16878] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac [ 3281.522388][T16877] netlink: 18401 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3281.552889][T16877] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3281.552889][T16877] !' [ 3281.563307][T16877] CPU: 0 PID: 16877 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3281.571987][T16877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3281.582046][T16877] Call Trace: [ 3281.585354][T16877] dump_stack+0x188/0x20d [ 3281.589752][T16877] sysfs_warn_dup.cold+0x1c/0x2d [ 3281.594694][T16877] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3281.600781][T16877] sysfs_create_link+0x61/0xc0 [ 3281.605549][T16877] device_add+0x71c/0x1bc0 [ 3281.609956][T16877] ? uevent_show+0x360/0x360 [ 3281.614533][T16877] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3281.620522][T16877] wiphy_register+0x1c46/0x2720 [ 3281.625397][T16877] ? wiphy_unregister+0xf90/0xf90 [ 3281.630422][T16877] ? retint_kernel+0x2b/0x2b [ 3281.635107][T16877] ? ieee80211_register_hw+0x1005/0x36a0 [ 3281.640838][T16877] ieee80211_register_hw+0x13d4/0x36a0 [ 3281.646297][T16877] ? __debug_object_init+0x4a1/0xe20 [ 3281.651611][T16877] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3281.657077][T16877] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3281.662619][T16877] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3281.668600][T16877] ? memset+0x20/0x40 [ 3281.672572][T16877] ? __hrtimer_init+0x134/0x260 [ 3281.677420][T16877] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3281.683151][T16877] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3281.688488][T16877] ? hwsim_register_received_nl+0x400/0x400 [ 3281.694386][T16877] hwsim_new_radio_nl+0x905/0xf60 [ 3281.699413][T16877] ? retint_kernel+0x2b/0x2b [ 3281.704018][T16877] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3281.709930][T16877] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3281.716249][T16877] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3281.722581][T16877] genl_rcv_msg+0x627/0xdf0 [ 3281.727143][T16877] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3281.733487][T16877] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3281.738777][T16877] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3281.744259][T16877] netlink_rcv_skb+0x15a/0x410 [ 3281.749037][T16877] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3281.755366][T16877] ? netlink_ack+0xa80/0xa80 [ 3281.759983][T16877] genl_rcv+0x24/0x40 [ 3281.763980][T16877] netlink_unicast+0x537/0x740 [ 3281.768748][T16877] ? netlink_attachskb+0x810/0x810 [ 3281.773847][T16877] ? _copy_from_iter_full+0x25c/0x870 [ 3281.779261][T16877] ? __phys_addr_symbol+0x2c/0x70 [ 3281.784318][T16877] ? __check_object_size+0x171/0x437 [ 3281.789607][T16877] netlink_sendmsg+0x882/0xe10 [ 3281.794360][T16877] ? aa_af_perm+0x260/0x260 [ 3281.798891][T16877] ? netlink_unicast+0x740/0x740 [ 3281.803849][T16877] ? netlink_unicast+0x740/0x740 [ 3281.808786][T16877] sock_sendmsg+0xcf/0x120 [ 3281.813201][T16877] ____sys_sendmsg+0x6b9/0x7d0 [ 3281.817969][T16877] ? kernel_sendmsg+0x50/0x50 [ 3281.822643][T16877] ? mark_lock+0xbc/0x1220 [ 3281.827060][T16877] ___sys_sendmsg+0x100/0x170 [ 3281.831720][T16877] ? sendmsg_copy_msghdr+0x70/0x70 [ 3281.836828][T16877] ? __fget_files+0x329/0x4f0 [ 3281.841501][T16877] ? ksys_dup3+0x3c0/0x3c0 [ 3281.845904][T16877] ? lock_acquire+0x197/0x420 [ 3281.850579][T16877] ? __might_fault+0xef/0x1d0 [ 3281.855252][T16877] ? __fget_light+0x208/0x270 [ 3281.859923][T16877] __sys_sendmsg+0xec/0x1b0 [ 3281.864433][T16877] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3281.869455][T16877] ? do_syscall_64+0xbc/0x7d0 [ 3281.874123][T16877] do_syscall_64+0xf6/0x7d0 [ 3281.878617][T16877] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3281.884520][T16877] RIP: 0033:0x45c849 [ 3281.888413][T16877] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3281.908014][T16877] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3281.916415][T16877] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3281.924391][T16877] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3281.932344][T16877] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3281.940295][T16877] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3281.948248][T16877] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3281.964260][T16875] netlink: 14858 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3281.977247][T16875] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3281.977247][T16875] !' [ 3281.987116][T16875] CPU: 0 PID: 16875 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3281.995913][T16875] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3282.005954][T16875] Call Trace: [ 3282.009262][T16875] dump_stack+0x188/0x20d [ 3282.013593][T16875] sysfs_warn_dup.cold+0x1c/0x2d [ 3282.018576][T16875] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3282.024643][T16875] sysfs_create_link+0x61/0xc0 [ 3282.029428][T16875] device_add+0x71c/0x1bc0 [ 3282.033903][T16875] ? uevent_show+0x360/0x360 [ 3282.038485][T16875] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3282.044468][T16875] wiphy_register+0x1c46/0x2720 [ 3282.049333][T16875] ? wiphy_unregister+0xf90/0xf90 [ 3282.054353][T16875] ? __kmalloc+0x629/0x7a0 [ 3282.058754][T16875] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3282.064308][T16875] ieee80211_register_hw+0x13d4/0x36a0 [ 3282.069776][T16875] ? __debug_object_init+0x4a1/0xe20 [ 3282.075109][T16875] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3282.080564][T16875] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3282.086113][T16875] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3282.092101][T16875] ? memset+0x20/0x40 [ 3282.096084][T16875] ? __hrtimer_init+0x134/0x260 [ 3282.100947][T16875] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3282.106662][T16875] ? vprintk_func+0x81/0x17e [ 3282.111265][T16875] ? hwsim_register_received_nl+0x400/0x400 [ 3282.117153][T16875] hwsim_new_radio_nl+0x905/0xf60 [ 3282.122169][T16875] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3282.128041][T16875] ? cap_capable+0x1eb/0x250 [ 3282.132652][T16875] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3282.138970][T16875] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3282.145283][T16875] genl_rcv_msg+0x627/0xdf0 [ 3282.149796][T16875] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3282.156147][T16875] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 3282.161957][T16875] netlink_rcv_skb+0x15a/0x410 [ 3282.166702][T16875] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3282.173026][T16875] ? netlink_ack+0xa80/0xa80 [ 3282.177618][T16875] genl_rcv+0x24/0x40 [ 3282.181602][T16875] netlink_unicast+0x537/0x740 [ 3282.186362][T16875] ? netlink_attachskb+0x810/0x810 [ 3282.191478][T16875] ? _copy_from_iter_full+0x25c/0x870 [ 3282.196840][T16875] ? __phys_addr_symbol+0x2c/0x70 [ 3282.201855][T16875] ? __check_object_size+0x171/0x437 [ 3282.207134][T16875] netlink_sendmsg+0x882/0xe10 [ 3282.211916][T16875] ? aa_af_perm+0x260/0x260 [ 3282.216422][T16875] ? netlink_unicast+0x740/0x740 [ 3282.221365][T16875] ? netlink_unicast+0x740/0x740 [ 3282.226292][T16875] sock_sendmsg+0xcf/0x120 [ 3282.230709][T16875] ____sys_sendmsg+0x6b9/0x7d0 [ 3282.235473][T16875] ? kernel_sendmsg+0x50/0x50 [ 3282.240146][T16875] ? mark_lock+0xbc/0x1220 [ 3282.244584][T16875] ___sys_sendmsg+0x100/0x170 [ 3282.249248][T16875] ? sendmsg_copy_msghdr+0x70/0x70 [ 3282.254361][T16875] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3282.259812][T16875] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3282.265091][T16875] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3282.270545][T16875] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3282.276258][T16875] ? retint_kernel+0x2b/0x2b [ 3282.280855][T16875] __sys_sendmsg+0xec/0x1b0 [ 3282.285363][T16875] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3282.290403][T16875] ? __x64_sys_futex+0x380/0x4f0 [ 3282.295347][T16875] ? trace_hardirqs_off_caller+0x55/0x230 [ 3282.301083][T16875] ? do_syscall_64+0x21/0x7d0 [ 3282.305816][T16875] do_syscall_64+0xf6/0x7d0 [ 3282.310361][T16875] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3282.316257][T16875] RIP: 0033:0x45c849 [ 3282.320150][T16875] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3282.339758][T16875] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3282.348172][T16875] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3282.356132][T16875] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3282.364090][T16875] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3282.372057][T16875] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3282.380035][T16875] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3282.401482][T16882] netlink: 'syz-executor.5': attribute type 8 has an invalid length. [ 3282.413816][T16882] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.5'. 23:47:09 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60104811400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3282.426040][T16882] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3282.426040][T16882] !' [ 3282.441983][T16882] CPU: 0 PID: 16882 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3282.450680][T16882] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3282.460744][T16882] Call Trace: [ 3282.464047][T16882] dump_stack+0x188/0x20d [ 3282.468394][T16882] sysfs_warn_dup.cold+0x1c/0x2d [ 3282.473347][T16882] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3282.479427][T16882] sysfs_create_link+0x61/0xc0 [ 3282.484202][T16882] device_add+0x71c/0x1bc0 [ 3282.488643][T16882] ? uevent_show+0x360/0x360 [ 3282.493245][T16882] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3282.499226][T16882] wiphy_register+0x1c46/0x2720 [ 3282.504068][T16882] ? wiphy_unregister+0xf90/0xf90 [ 3282.509076][T16882] ? __kmalloc+0x629/0x7a0 [ 3282.513491][T16882] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3282.519052][T16882] ieee80211_register_hw+0x13d4/0x36a0 [ 3282.524561][T16882] ? __debug_object_init+0x4a1/0xe20 [ 3282.529847][T16882] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3282.535337][T16882] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3282.540880][T16882] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3282.546844][T16882] ? memset+0x20/0x40 [ 3282.550809][T16882] ? __hrtimer_init+0x134/0x260 [ 3282.555657][T16882] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3282.561379][T16882] ? vprintk_func+0x81/0x17e [ 3282.565954][T16882] ? hwsim_register_received_nl+0x400/0x400 [ 3282.571846][T16882] hwsim_new_radio_nl+0x905/0xf60 [ 3282.576864][T16882] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3282.582749][T16882] ? cap_capable+0x1eb/0x250 [ 3282.587324][T16882] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3282.593648][T16882] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3282.599979][T16882] genl_rcv_msg+0x627/0xdf0 [ 3282.604464][T16882] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3282.610787][T16882] ? mark_held_locks+0x9f/0xe0 [ 3282.615543][T16882] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3282.620989][T16882] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3282.626772][T16882] ? retint_kernel+0x2b/0x2b [ 3282.631359][T16882] netlink_rcv_skb+0x15a/0x410 [ 3282.636116][T16882] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3282.642448][T16882] ? netlink_ack+0xa80/0xa80 [ 3282.647028][T16882] genl_rcv+0x24/0x40 [ 3282.650994][T16882] netlink_unicast+0x537/0x740 [ 3282.655744][T16882] ? netlink_attachskb+0x810/0x810 [ 3282.660845][T16882] ? _copy_from_iter_full+0x25c/0x870 [ 3282.666235][T16882] ? __phys_addr_symbol+0x2c/0x70 [ 3282.671244][T16882] ? __check_object_size+0x171/0x437 [ 3282.676527][T16882] netlink_sendmsg+0x882/0xe10 [ 3282.681282][T16882] ? aa_af_perm+0x260/0x260 [ 3282.685766][T16882] ? netlink_unicast+0x740/0x740 [ 3282.690695][T16882] ? netlink_unicast+0x740/0x740 [ 3282.695630][T16882] sock_sendmsg+0xcf/0x120 [ 3282.700041][T16882] ____sys_sendmsg+0x6b9/0x7d0 [ 3282.704801][T16882] ? kernel_sendmsg+0x50/0x50 [ 3282.709465][T16882] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3282.714909][T16882] ___sys_sendmsg+0x100/0x170 [ 3282.719583][T16882] ? retint_kernel+0x2b/0x2b [ 3282.724167][T16882] ? sendmsg_copy_msghdr+0x70/0x70 [ 3282.729379][T16882] ? __fget_files+0x282/0x4f0 [ 3282.734054][T16882] ? __fget_files+0x329/0x4f0 [ 3282.738718][T16882] ? ksys_dup3+0x3c0/0x3c0 [ 3282.743115][T16882] ? lock_acquire+0x209/0x420 [ 3282.747797][T16882] ? __fget_light+0x208/0x270 [ 3282.752473][T16882] __sys_sendmsg+0xec/0x1b0 [ 3282.756968][T16882] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3282.761978][T16882] ? __x64_sys_futex+0x380/0x4f0 [ 3282.766904][T16882] ? trace_hardirqs_off_caller+0x55/0x230 [ 3282.772773][T16882] ? do_syscall_64+0x21/0x7d0 [ 3282.777438][T16882] do_syscall_64+0xf6/0x7d0 [ 3282.781953][T16882] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3282.787825][T16882] RIP: 0033:0x45c849 [ 3282.791718][T16882] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3282.811310][T16882] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3282.819723][T16882] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3282.827724][T16882] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3282.835723][T16882] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3282.843684][T16882] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3282.851648][T16882] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3282.862632][T16880] netlink: 18401 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3282.874168][T16880] sysfs: cannot create duplicate filename '/class/ieee80211/ 23:47:10 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000735d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3282.874168][T16880] !' [ 3282.884956][T16880] CPU: 0 PID: 16880 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3282.893641][T16880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3282.903699][T16880] Call Trace: [ 3282.907001][T16880] dump_stack+0x188/0x20d [ 3282.911349][T16880] sysfs_warn_dup.cold+0x1c/0x2d [ 3282.916303][T16880] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3282.922386][T16880] sysfs_create_link+0x61/0xc0 [ 3282.927168][T16880] device_add+0x71c/0x1bc0 [ 3282.931600][T16880] ? uevent_show+0x360/0x360 [ 3282.936202][T16880] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3282.942184][T16880] wiphy_register+0x1c46/0x2720 [ 3282.947089][T16880] ? wiphy_unregister+0xf90/0xf90 [ 3282.952114][T16880] ? __kmalloc+0x629/0x7a0 [ 3282.956527][T16880] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3282.962069][T16880] ieee80211_register_hw+0x13d4/0x36a0 [ 3282.967534][T16880] ? __debug_object_init+0x4a1/0xe20 [ 3282.972844][T16880] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3282.978360][T16880] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3282.983898][T16880] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3282.989881][T16880] ? memset+0x20/0x40 [ 3282.993871][T16880] ? __hrtimer_init+0x134/0x260 [ 3282.998726][T16880] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3283.004461][T16880] ? vprintk_func+0x81/0x17e [ 3283.009060][T16880] ? hwsim_register_received_nl+0x400/0x400 [ 3283.014960][T16880] hwsim_new_radio_nl+0x905/0xf60 [ 3283.020000][T16880] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3283.025928][T16880] ? cap_capable+0x1eb/0x250 [ 3283.030522][T16880] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3283.036854][T16880] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3283.043239][T16880] genl_rcv_msg+0x627/0xdf0 [ 3283.047730][T16880] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3283.054073][T16880] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 3283.059894][T16880] netlink_rcv_skb+0x15a/0x410 [ 3283.064671][T16880] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3283.071122][T16880] ? netlink_ack+0xa80/0xa80 [ 3283.075733][T16880] genl_rcv+0x24/0x40 [ 3283.079721][T16880] netlink_unicast+0x537/0x740 [ 3283.084484][T16880] ? netlink_attachskb+0x810/0x810 [ 3283.089586][T16880] ? _copy_from_iter_full+0x25c/0x870 [ 3283.094961][T16880] ? __phys_addr_symbol+0x2c/0x70 [ 3283.100077][T16880] ? __check_object_size+0x171/0x437 [ 3283.105366][T16880] netlink_sendmsg+0x882/0xe10 [ 3283.110140][T16880] ? aa_af_perm+0x260/0x260 [ 3283.114657][T16880] ? netlink_unicast+0x740/0x740 [ 3283.119622][T16880] ? netlink_unicast+0x740/0x740 [ 3283.124552][T16880] sock_sendmsg+0xcf/0x120 [ 3283.128951][T16880] ____sys_sendmsg+0x6b9/0x7d0 [ 3283.133715][T16880] ? kernel_sendmsg+0x50/0x50 [ 3283.138402][T16880] ? mark_lock+0xbc/0x1220 [ 3283.142845][T16880] ___sys_sendmsg+0x100/0x170 [ 3283.147540][T16880] ? sendmsg_copy_msghdr+0x70/0x70 [ 3283.152678][T16880] ? __fget_files+0x329/0x4f0 [ 3283.157375][T16880] ? ksys_dup3+0x3c0/0x3c0 [ 3283.161788][T16880] ? lock_acquire+0x197/0x420 [ 3283.166449][T16880] ? __might_fault+0xef/0x1d0 [ 3283.171132][T16880] ? __fget_light+0x208/0x270 [ 3283.175822][T16880] __sys_sendmsg+0xec/0x1b0 [ 3283.180385][T16880] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3283.185394][T16880] ? __x64_sys_futex+0x380/0x4f0 [ 3283.190337][T16880] ? trace_hardirqs_off_caller+0x55/0x230 [ 3283.196061][T16880] ? do_syscall_64+0x21/0x7d0 [ 3283.200743][T16880] do_syscall_64+0xf6/0x7d0 [ 3283.205249][T16880] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3283.211131][T16880] RIP: 0033:0x45c849 [ 3283.215022][T16880] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3283.234701][T16880] RSP: 002b:00007fda9c338c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3283.243101][T16880] RAX: ffffffffffffffda RBX: 00007fda9c3396d4 RCX: 000000000045c849 [ 3283.251080][T16880] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3283.259056][T16880] RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 3283.267015][T16880] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3283.274979][T16880] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bfac 23:47:10 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0648000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3283.294006][T16887] netlink: 10 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3283.321357][T16887] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3283.321357][T16887] !' [ 3283.332828][T16887] CPU: 0 PID: 16887 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 [ 3283.341545][T16887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3283.351606][T16887] Call Trace: [ 3283.354910][T16887] dump_stack+0x188/0x20d [ 3283.359263][T16887] sysfs_warn_dup.cold+0x1c/0x2d [ 3283.364215][T16887] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3283.370317][T16887] sysfs_create_link+0x61/0xc0 [ 3283.375110][T16887] device_add+0x71c/0x1bc0 [ 3283.379548][T16887] ? uevent_show+0x360/0x360 [ 3283.384158][T16887] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3283.390158][T16887] wiphy_register+0x1c46/0x2720 [ 3283.395035][T16887] ? wiphy_unregister+0xf90/0xf90 [ 3283.400091][T16887] ? __kmalloc+0x629/0x7a0 [ 3283.404524][T16887] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3283.410099][T16887] ieee80211_register_hw+0x13d4/0x36a0 [ 3283.415575][T16887] ? __debug_object_init+0x4a1/0xe20 [ 3283.420888][T16887] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3283.426376][T16887] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3283.431932][T16887] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3283.437912][T16887] ? memset+0x20/0x40 [ 3283.441881][T16887] ? __hrtimer_init+0x134/0x260 [ 3283.446717][T16887] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3283.452433][T16887] ? vprintk_func+0x81/0x17e [ 3283.457046][T16887] ? hwsim_register_received_nl+0x400/0x400 [ 3283.462944][T16887] hwsim_new_radio_nl+0x905/0xf60 [ 3283.467958][T16887] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3283.473829][T16887] ? cap_capable+0x1eb/0x250 [ 3283.478423][T16887] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3283.484743][T16887] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3283.491080][T16887] genl_rcv_msg+0x627/0xdf0 [ 3283.495603][T16887] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3283.501949][T16887] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3283.507405][T16887] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3283.514334][T16887] ? netlink_rcv_skb+0x82/0x410 [ 3283.519284][T16887] netlink_rcv_skb+0x15a/0x410 [ 3283.524061][T16887] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3283.530392][T16887] ? netlink_ack+0xa80/0xa80 [ 3283.535005][T16887] genl_rcv+0x24/0x40 [ 3283.538996][T16887] netlink_unicast+0x537/0x740 [ 3283.543748][T16887] ? netlink_attachskb+0x810/0x810 [ 3283.548839][T16887] ? _copy_from_iter_full+0x25c/0x870 [ 3283.554192][T16887] ? __phys_addr_symbol+0x2c/0x70 [ 3283.559217][T16887] ? __check_object_size+0x171/0x437 [ 3283.564486][T16887] netlink_sendmsg+0x882/0xe10 [ 3283.569235][T16887] ? aa_af_perm+0x260/0x260 [ 3283.573723][T16887] ? netlink_unicast+0x740/0x740 [ 3283.578652][T16887] ? netlink_unicast+0x740/0x740 [ 3283.583575][T16887] sock_sendmsg+0xcf/0x120 [ 3283.588070][T16887] ____sys_sendmsg+0x6b9/0x7d0 [ 3283.592831][T16887] ? kernel_sendmsg+0x50/0x50 [ 3283.597511][T16887] ? mark_lock+0xbc/0x1220 [ 3283.601929][T16887] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3283.607389][T16887] ___sys_sendmsg+0x100/0x170 [ 3283.612069][T16887] ? sendmsg_copy_msghdr+0x70/0x70 [ 3283.617180][T16887] ? __fget_files+0x329/0x4f0 [ 3283.621849][T16887] ? ksys_dup3+0x3c0/0x3c0 [ 3283.626248][T16887] ? lock_acquire+0x197/0x420 [ 3283.630915][T16887] ? __might_fault+0xef/0x1d0 [ 3283.635596][T16887] ? __fget_light+0x208/0x270 [ 3283.640278][T16887] __sys_sendmsg+0xec/0x1b0 [ 3283.644792][T16887] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3283.649819][T16887] ? __x64_sys_futex+0x380/0x4f0 [ 3283.654769][T16887] ? trace_hardirqs_off_caller+0x55/0x230 [ 3283.660498][T16887] ? do_syscall_64+0x21/0x7d0 [ 3283.665167][T16887] do_syscall_64+0xf6/0x7d0 [ 3283.669670][T16887] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3283.675570][T16887] RIP: 0033:0x45c849 [ 3283.679462][T16887] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3283.699076][T16887] RSP: 002b:00007fce667aac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3283.707494][T16887] RAX: ffffffffffffffda RBX: 00007fce667ab6d4 RCX: 000000000045c849 [ 3283.715470][T16887] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3283.723450][T16887] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3283.731418][T16887] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff 23:47:10 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60104c11400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3283.739396][T16887] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3283.753155][T16889] netlink: 'syz-executor.5': attribute type 8 has an invalid length. [ 3283.769798][T16889] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3283.786230][T16889] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3283.786230][T16889] !' [ 3283.797044][T16889] CPU: 0 PID: 16889 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3283.805735][T16889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3283.815797][T16889] Call Trace: [ 3283.819188][T16889] dump_stack+0x188/0x20d [ 3283.823535][T16889] sysfs_warn_dup.cold+0x1c/0x2d [ 3283.828489][T16889] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3283.834566][T16889] sysfs_create_link+0x61/0xc0 [ 3283.839339][T16889] device_add+0x71c/0x1bc0 [ 3283.843774][T16889] ? uevent_show+0x360/0x360 [ 3283.848398][T16889] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3283.854392][T16889] wiphy_register+0x1c46/0x2720 [ 3283.859250][T16889] ? wiphy_unregister+0xf90/0xf90 [ 3283.864314][T16889] ? __kmalloc+0x629/0x7a0 [ 3283.868718][T16889] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3283.874265][T16889] ieee80211_register_hw+0x13d4/0x36a0 [ 3283.879720][T16889] ? __debug_object_init+0x4a1/0xe20 [ 3283.884993][T16889] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3283.890437][T16889] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3283.896106][T16889] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3283.902076][T16889] ? memset+0x20/0x40 [ 3283.906069][T16889] ? __hrtimer_init+0x134/0x260 [ 3283.910922][T16889] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3283.916646][T16889] ? vprintk_func+0x81/0x17e [ 3283.921232][T16889] ? hwsim_register_received_nl+0x400/0x400 [ 3283.927115][T16889] hwsim_new_radio_nl+0x905/0xf60 [ 3283.932150][T16889] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3283.938145][T16889] ? cap_capable+0x1eb/0x250 [ 3283.942731][T16889] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3283.949044][T16889] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3283.955367][T16889] genl_rcv_msg+0x627/0xdf0 [ 3283.959860][T16889] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3283.966175][T16889] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3283.971456][T16889] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3283.976901][T16889] netlink_rcv_skb+0x15a/0x410 [ 3283.981651][T16889] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3283.987960][T16889] ? netlink_ack+0xa80/0xa80 [ 3283.992555][T16889] genl_rcv+0x24/0x40 [ 3283.996545][T16889] netlink_unicast+0x537/0x740 [ 3284.001315][T16889] ? netlink_attachskb+0x810/0x810 [ 3284.006413][T16889] ? _copy_from_iter_full+0x25c/0x870 [ 3284.011773][T16889] ? __phys_addr_symbol+0x2c/0x70 [ 3284.016807][T16889] ? __check_object_size+0x171/0x437 [ 3284.022094][T16889] netlink_sendmsg+0x882/0xe10 [ 3284.026867][T16889] ? aa_af_perm+0x260/0x260 [ 3284.031377][T16889] ? netlink_unicast+0x740/0x740 [ 3284.036323][T16889] ? netlink_unicast+0x740/0x740 [ 3284.041246][T16889] sock_sendmsg+0xcf/0x120 [ 3284.045666][T16889] ____sys_sendmsg+0x6b9/0x7d0 [ 3284.050430][T16889] ? kernel_sendmsg+0x50/0x50 [ 3284.055142][T16889] ? mark_lock+0xbc/0x1220 [ 3284.059593][T16889] ___sys_sendmsg+0x100/0x170 [ 3284.064460][T16889] ? sendmsg_copy_msghdr+0x70/0x70 [ 3284.069590][T16889] ? __fget_files+0x329/0x4f0 [ 3284.074260][T16889] ? ksys_dup3+0x3c0/0x3c0 [ 3284.078657][T16889] ? lock_acquire+0x197/0x420 [ 3284.083317][T16889] ? __might_fault+0xef/0x1d0 [ 3284.087984][T16889] ? __fget_light+0x208/0x270 [ 3284.092658][T16889] __sys_sendmsg+0xec/0x1b0 [ 3284.097143][T16889] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3284.102154][T16889] ? __x64_sys_futex+0x380/0x4f0 [ 3284.107077][T16889] ? trace_hardirqs_off_caller+0x55/0x230 [ 3284.112974][T16889] ? do_syscall_64+0x21/0x7d0 [ 3284.117669][T16889] do_syscall_64+0xf6/0x7d0 [ 3284.122165][T16889] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3284.128068][T16889] RIP: 0033:0x45c849 [ 3284.131966][T16889] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3284.151615][T16889] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3284.160022][T16889] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3284.168006][T16889] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3284.176028][T16889] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3284.183993][T16889] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff 23:47:11 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d23580788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3284.191957][T16889] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3284.206159][T16898] netlink: 18402 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3284.247908][T16898] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3284.247908][T16898] !' [ 3284.264952][T16898] CPU: 0 PID: 16898 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3284.273653][T16898] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3284.283713][T16898] Call Trace: [ 3284.287015][T16898] dump_stack+0x188/0x20d [ 3284.291339][T16898] sysfs_warn_dup.cold+0x1c/0x2d [ 3284.296270][T16898] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3284.302342][T16898] sysfs_create_link+0x61/0xc0 [ 3284.307236][T16898] device_add+0x71c/0x1bc0 [ 3284.311648][T16898] ? ieee80211_set_bitrate_flags+0x2be/0x5c0 [ 3284.317619][T16898] ? uevent_show+0x360/0x360 [ 3284.322213][T16898] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3284.328209][T16898] wiphy_register+0x1c46/0x2720 [ 3284.333068][T16898] ? wiphy_unregister+0xf90/0xf90 [ 3284.338090][T16898] ? retint_kernel+0x2b/0x2b [ 3284.342687][T16898] ? ieee80211_register_hw+0xdbb/0x36a0 [ 3284.348252][T16898] ieee80211_register_hw+0x13d4/0x36a0 [ 3284.353700][T16898] ? __debug_object_init+0x4a1/0xe20 [ 3284.358984][T16898] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3284.364442][T16898] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3284.370007][T16898] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3284.376053][T16898] ? memset+0x20/0x40 [ 3284.380100][T16898] ? __hrtimer_init+0x134/0x260 [ 3284.384968][T16898] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3284.390691][T16898] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3284.395986][T16898] ? hwsim_register_received_nl+0x400/0x400 [ 3284.401897][T16898] ? hwsim_new_radio_nl+0x246/0xf60 [ 3284.407154][T16898] hwsim_new_radio_nl+0x905/0xf60 [ 3284.412177][T16898] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3284.418052][T16898] ? retint_kernel+0x2b/0x2b [ 3284.422634][T16898] ? cap_capable+0x1eb/0x250 [ 3284.427236][T16898] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3284.433554][T16898] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3284.439880][T16898] genl_rcv_msg+0x627/0xdf0 [ 3284.444395][T16898] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3284.450728][T16898] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3284.456007][T16898] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3284.461491][T16898] netlink_rcv_skb+0x15a/0x410 [ 3284.466260][T16898] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3284.472625][T16898] ? netlink_ack+0xa80/0xa80 [ 3284.477207][T16898] genl_rcv+0x24/0x40 [ 3284.481188][T16898] netlink_unicast+0x537/0x740 [ 3284.485974][T16898] ? netlink_attachskb+0x810/0x810 [ 3284.491189][T16898] ? _copy_from_iter_full+0x25c/0x870 [ 3284.496556][T16898] ? __phys_addr_symbol+0x2c/0x70 [ 3284.501582][T16898] ? __check_object_size+0x171/0x437 [ 3284.506916][T16898] netlink_sendmsg+0x882/0xe10 [ 3284.511705][T16898] ? aa_af_perm+0x260/0x260 [ 3284.516196][T16898] ? netlink_unicast+0x740/0x740 [ 3284.521246][T16898] ? netlink_unicast+0x740/0x740 [ 3284.526196][T16898] sock_sendmsg+0xcf/0x120 [ 3284.530620][T16898] ____sys_sendmsg+0x6b9/0x7d0 [ 3284.535378][T16898] ? kernel_sendmsg+0x50/0x50 [ 3284.540164][T16898] ? mark_lock+0xbc/0x1220 [ 3284.544603][T16898] ___sys_sendmsg+0x100/0x170 [ 3284.549291][T16898] ? sendmsg_copy_msghdr+0x70/0x70 [ 3284.554407][T16898] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3284.559864][T16898] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3284.565150][T16898] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3284.570603][T16898] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3284.576312][T16898] ? retint_kernel+0x2b/0x2b [ 3284.580924][T16898] __sys_sendmsg+0xec/0x1b0 [ 3284.585438][T16898] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3284.590488][T16898] ? __x64_sys_futex+0x380/0x4f0 [ 3284.595451][T16898] ? trace_hardirqs_off_caller+0x55/0x230 [ 3284.601179][T16898] ? do_syscall_64+0x21/0x7d0 [ 3284.605873][T16898] do_syscall_64+0xf6/0x7d0 [ 3284.610383][T16898] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3284.616301][T16898] RIP: 0033:0x45c849 [ 3284.620200][T16898] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3284.639809][T16898] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3284.648230][T16898] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3284.656199][T16898] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3284.664179][T16898] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3284.672193][T16898] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3284.680157][T16898] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3284.704608][T16903] netlink: 18458 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3284.760764][T16905] netlink: 'syz-executor.5': attribute type 8 has an invalid length. [ 3284.769030][T16905] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3284.792392][T16905] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3284.792392][T16905] !' [ 3284.808852][T16905] CPU: 1 PID: 16905 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3284.817564][T16905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3284.827623][T16905] Call Trace: [ 3284.830926][T16905] dump_stack+0x188/0x20d [ 3284.835273][T16905] sysfs_warn_dup.cold+0x1c/0x2d [ 3284.840227][T16905] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3284.846307][T16905] sysfs_create_link+0x61/0xc0 [ 3284.851082][T16905] device_add+0x71c/0x1bc0 [ 3284.855517][T16905] ? ieee80211_set_bitrate_flags+0x46a/0x5c0 [ 3284.861496][T16905] ? uevent_show+0x360/0x360 [ 3284.866086][T16905] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3284.872050][T16905] wiphy_register+0x1c46/0x2720 [ 3284.876892][T16905] ? wiphy_unregister+0xf90/0xf90 [ 3284.881903][T16905] ? __kmalloc+0x629/0x7a0 [ 3284.886301][T16905] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3284.891833][T16905] ? ieee80211_register_hw+0x697/0x36a0 [ 3284.897363][T16905] ieee80211_register_hw+0x13d4/0x36a0 [ 3284.902813][T16905] ? calibrate_delay.cold+0x3db/0x3f6 [ 3284.908204][T16905] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3284.913664][T16905] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3284.919724][T16905] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3284.925703][T16905] ? memset+0x20/0x40 [ 3284.929670][T16905] ? __hrtimer_init+0x134/0x260 [ 3284.934520][T16905] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3284.940238][T16905] ? vprintk_func+0x81/0x17e [ 3284.944856][T16905] ? hwsim_register_received_nl+0x400/0x400 [ 3284.950768][T16905] hwsim_new_radio_nl+0x905/0xf60 [ 3284.955778][T16905] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3284.961277][T16905] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3284.967176][T16905] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3284.972923][T16905] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3284.979254][T16905] genl_rcv_msg+0x627/0xdf0 [ 3284.983788][T16905] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3284.990115][T16905] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3284.995565][T16905] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3285.001286][T16905] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3285.007604][T16905] netlink_rcv_skb+0x15a/0x410 [ 3285.012351][T16905] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3285.018663][T16905] ? netlink_ack+0xa80/0xa80 [ 3285.023283][T16905] genl_rcv+0x24/0x40 [ 3285.027247][T16905] netlink_unicast+0x537/0x740 [ 3285.032032][T16905] ? netlink_attachskb+0x810/0x810 [ 3285.037123][T16905] ? _copy_from_iter_full+0x25c/0x870 [ 3285.042485][T16905] ? __phys_addr_symbol+0x2c/0x70 [ 3285.047500][T16905] ? __check_object_size+0x171/0x437 [ 3285.052780][T16905] netlink_sendmsg+0x882/0xe10 [ 3285.057557][T16905] ? aa_af_perm+0x260/0x260 [ 3285.062052][T16905] ? netlink_unicast+0x740/0x740 [ 3285.066982][T16905] ? netlink_unicast+0x740/0x740 [ 3285.071905][T16905] sock_sendmsg+0xcf/0x120 [ 3285.076310][T16905] ____sys_sendmsg+0x6b9/0x7d0 [ 3285.081083][T16905] ? kernel_sendmsg+0x50/0x50 [ 3285.085746][T16905] ? mark_lock+0xbc/0x1220 [ 3285.090161][T16905] ___sys_sendmsg+0x100/0x170 [ 3285.094825][T16905] ? sendmsg_copy_msghdr+0x70/0x70 [ 3285.099925][T16905] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3285.105366][T16905] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3285.110719][T16905] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3285.116172][T16905] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3285.121874][T16905] ? retint_kernel+0x2b/0x2b [ 3285.126521][T16905] ? __fget_light+0x1ff/0x270 [ 3285.131201][T16905] ? kcov_common_handle+0x20/0x20 [ 3285.136218][T16905] ? __fget_light+0x208/0x270 [ 3285.140894][T16905] __sys_sendmsg+0xec/0x1b0 [ 3285.145390][T16905] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3285.150415][T16905] ? __x64_sys_futex+0x380/0x4f0 [ 3285.155362][T16905] ? trace_hardirqs_off_caller+0x55/0x230 [ 3285.161077][T16905] ? do_syscall_64+0x21/0x7d0 [ 3285.165744][T16905] do_syscall_64+0xf6/0x7d0 [ 3285.170240][T16905] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3285.176118][T16905] RIP: 0033:0x45c849 [ 3285.180005][T16905] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3285.199589][T16905] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3285.207979][T16905] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3285.215930][T16905] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3285.223883][T16905] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3285.231842][T16905] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3285.239793][T16905] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3285.264187][T16905] netlink: 'syz-executor.5': attribute type 8 has an invalid length. [ 3285.279789][T16905] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3285.279789][T16905] !' [ 3285.289879][T16905] CPU: 1 PID: 16905 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3285.298583][T16905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3285.308635][T16905] Call Trace: [ 3285.311948][T16905] dump_stack+0x188/0x20d [ 3285.316287][T16905] sysfs_warn_dup.cold+0x1c/0x2d [ 3285.321219][T16905] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3285.327270][T16905] sysfs_create_link+0x61/0xc0 [ 3285.332016][T16905] device_add+0x71c/0x1bc0 [ 3285.336415][T16905] ? uevent_show+0x360/0x360 [ 3285.340993][T16905] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3285.346954][T16905] wiphy_register+0x1c46/0x2720 [ 3285.351788][T16905] ? wiphy_unregister+0xf90/0xf90 [ 3285.356812][T16905] ? __kmalloc+0x629/0x7a0 [ 3285.361208][T16905] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3285.366751][T16905] ieee80211_register_hw+0x13d4/0x36a0 [ 3285.372194][T16905] ? __debug_object_init+0x4a1/0xe20 [ 3285.377484][T16905] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3285.382942][T16905] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3285.388470][T16905] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3285.394439][T16905] ? memset+0x20/0x40 [ 3285.398402][T16905] ? __hrtimer_init+0x134/0x260 [ 3285.403248][T16905] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3285.408957][T16905] ? hwsim_register_received_nl+0x400/0x400 [ 3285.414848][T16905] hwsim_new_radio_nl+0x905/0xf60 [ 3285.419855][T16905] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3285.425733][T16905] ? cap_capable+0x1eb/0x250 [ 3285.430307][T16905] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3285.436612][T16905] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3285.442919][T16905] genl_rcv_msg+0x627/0xdf0 [ 3285.447405][T16905] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3285.453713][T16905] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3285.458977][T16905] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3285.464432][T16905] netlink_rcv_skb+0x15a/0x410 [ 3285.469195][T16905] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3285.475505][T16905] ? netlink_ack+0xa80/0xa80 [ 3285.480095][T16905] genl_rcv+0x24/0x40 [ 3285.484077][T16905] netlink_unicast+0x537/0x740 [ 3285.488831][T16905] ? netlink_attachskb+0x810/0x810 [ 3285.493920][T16905] ? _copy_from_iter_full+0x25c/0x870 [ 3285.499283][T16905] ? __phys_addr_symbol+0x2c/0x70 [ 3285.504295][T16905] ? __check_object_size+0x171/0x437 [ 3285.509574][T16905] netlink_sendmsg+0x882/0xe10 [ 3285.514323][T16905] ? aa_af_perm+0x260/0x260 [ 3285.518815][T16905] ? netlink_unicast+0x740/0x740 [ 3285.523747][T16905] ? netlink_unicast+0x740/0x740 [ 3285.528703][T16905] sock_sendmsg+0xcf/0x120 [ 3285.533118][T16905] ____sys_sendmsg+0x6b9/0x7d0 [ 3285.538066][T16905] ? kernel_sendmsg+0x50/0x50 [ 3285.542749][T16905] ? mark_lock+0xbc/0x1220 [ 3285.547228][T16905] ___sys_sendmsg+0x100/0x170 [ 3285.551898][T16905] ? sendmsg_copy_msghdr+0x70/0x70 [ 3285.557027][T16905] ? __fget_files+0x329/0x4f0 [ 3285.561720][T16905] ? ksys_dup3+0x3c0/0x3c0 [ 3285.566127][T16905] ? lock_acquire+0x197/0x420 [ 3285.570822][T16905] ? __might_fault+0xef/0x1d0 [ 3285.575497][T16905] ? __fget_light+0x208/0x270 [ 3285.580168][T16905] __sys_sendmsg+0xec/0x1b0 [ 3285.584657][T16905] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3285.589685][T16905] ? do_syscall_64+0x4f/0x7d0 [ 3285.594362][T16905] do_syscall_64+0xf6/0x7d0 [ 3285.598858][T16905] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3285.604737][T16905] RIP: 0033:0x45c849 [ 3285.608614][T16905] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3285.628198][T16905] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3285.636606][T16905] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3285.644561][T16905] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3285.652509][T16905] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3285.660457][T16905] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3285.668414][T16905] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:47:19 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100811400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:19 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0748000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:19 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60106011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:19 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c6394350424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:19 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0248000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3292.894659][T16918] __nla_validate_parse: 1 callbacks suppressed [ 3292.894689][T16918] netlink: 18458 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3293.016296][T16920] netlink: 18403 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3293.038490][T16920] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3293.038490][T16920] !' [ 3293.048543][T16920] CPU: 1 PID: 16920 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3293.057219][T16920] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3293.067310][T16920] Call Trace: [ 3293.070591][T16920] dump_stack+0x188/0x20d [ 3293.074928][T16920] sysfs_warn_dup.cold+0x1c/0x2d [ 3293.079882][T16920] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3293.085960][T16920] sysfs_create_link+0x61/0xc0 [ 3293.090729][T16920] device_add+0x71c/0x1bc0 [ 3293.095164][T16920] ? uevent_show+0x360/0x360 [ 3293.099764][T16920] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3293.105755][T16920] wiphy_register+0x1c46/0x2720 [ 3293.110639][T16920] ? wiphy_unregister+0xf90/0xf90 [ 3293.115702][T16920] ? __kmalloc+0x629/0x7a0 [ 3293.120139][T16920] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3293.125726][T16920] ? ieee80211_register_hw+0x756/0x36a0 [ 3293.131283][T16920] ieee80211_register_hw+0x13d4/0x36a0 [ 3293.136753][T16920] ? __debug_object_init+0x4a1/0xe20 [ 3293.142059][T16920] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3293.147523][T16920] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3293.153049][T16920] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3293.159013][T16920] ? memset+0x20/0x40 [ 3293.162979][T16920] ? __hrtimer_init+0x134/0x260 [ 3293.167834][T16920] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3293.173551][T16920] ? vprintk_func+0x81/0x17e [ 3293.178148][T16920] ? hwsim_register_received_nl+0x400/0x400 [ 3293.184026][T16920] hwsim_new_radio_nl+0x905/0xf60 [ 3293.189031][T16920] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3293.194339][T16920] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3293.200218][T16920] genl_rcv_msg+0x627/0xdf0 [ 3293.204743][T16920] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3293.211057][T16920] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3293.216498][T16920] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3293.222201][T16920] netlink_rcv_skb+0x15a/0x410 [ 3293.226944][T16920] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3293.233252][T16920] ? netlink_ack+0xa80/0xa80 [ 3293.237849][T16920] genl_rcv+0x24/0x40 [ 3293.241813][T16920] netlink_unicast+0x537/0x740 [ 3293.246562][T16920] ? netlink_attachskb+0x810/0x810 [ 3293.251670][T16920] ? _copy_from_iter_full+0x25c/0x870 [ 3293.257029][T16920] ? __phys_addr_symbol+0x2c/0x70 [ 3293.262043][T16920] ? __check_object_size+0x171/0x437 [ 3293.267309][T16920] netlink_sendmsg+0x882/0xe10 [ 3293.272091][T16920] ? aa_af_perm+0x260/0x260 [ 3293.276603][T16920] ? netlink_unicast+0x740/0x740 [ 3293.281525][T16920] ? netlink_unicast+0x740/0x740 [ 3293.286442][T16920] sock_sendmsg+0xcf/0x120 [ 3293.290852][T16920] ____sys_sendmsg+0x6b9/0x7d0 [ 3293.295618][T16920] ? kernel_sendmsg+0x50/0x50 [ 3293.300289][T16920] ? retint_kernel+0x2b/0x2b [ 3293.304865][T16920] ___sys_sendmsg+0x100/0x170 [ 3293.309535][T16920] ? sendmsg_copy_msghdr+0x70/0x70 [ 3293.314633][T16920] ? __fget_files+0x329/0x4f0 [ 3293.319308][T16920] ? ksys_dup3+0x3c0/0x3c0 [ 3293.323704][T16920] ? lock_acquire+0x197/0x420 [ 3293.328362][T16920] ? __might_fault+0xef/0x1d0 [ 3293.333209][T16920] ? __fget_light+0x208/0x270 [ 3293.337880][T16920] __sys_sendmsg+0xec/0x1b0 [ 3293.342363][T16920] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3293.347379][T16920] ? __x64_sys_futex+0x380/0x4f0 [ 3293.352314][T16920] ? trace_hardirqs_off_caller+0x55/0x230 [ 3293.358041][T16920] ? do_syscall_64+0x21/0x7d0 [ 3293.362706][T16920] do_syscall_64+0xf6/0x7d0 [ 3293.367199][T16920] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3293.373249][T16920] RIP: 0033:0x45c849 [ 3293.377161][T16920] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3293.396763][T16920] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3293.405170][T16920] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3293.413130][T16920] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3293.421084][T16920] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3293.429041][T16920] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3293.436992][T16920] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3293.461235][T16919] netlink: 'syz-executor.5': attribute type 8 has an invalid length. [ 3293.471917][T16919] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3293.516617][T16919] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3293.516617][T16919] !' [ 3293.526863][T16919] CPU: 0 PID: 16919 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3293.535552][T16919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3293.545693][T16919] Call Trace: [ 3293.548983][T16919] dump_stack+0x188/0x20d [ 3293.553331][T16919] sysfs_warn_dup.cold+0x1c/0x2d [ 3293.558284][T16919] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3293.564366][T16919] sysfs_create_link+0x61/0xc0 [ 3293.569143][T16919] device_add+0x71c/0x1bc0 [ 3293.573575][T16919] ? __sanitizer_cov_trace_switch+0xe/0x70 [ 3293.580010][T16919] ? uevent_show+0x360/0x360 [ 3293.584597][T16919] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3293.590575][T16919] wiphy_register+0x1c46/0x2720 [ 3293.595438][T16919] ? wiphy_unregister+0xf90/0xf90 [ 3293.600467][T16919] ? retint_kernel+0x2b/0x2b [ 3293.605056][T16919] ? ieee80211_register_hw+0x1375/0x36a0 [ 3293.610680][T16919] ieee80211_register_hw+0x13d4/0x36a0 [ 3293.616124][T16919] ? calibrate_delay.cold+0x3db/0x3f6 [ 3293.621499][T16919] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3293.626961][T16919] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3293.632665][T16919] ? memset+0x20/0x40 [ 3293.636625][T16919] ? __hrtimer_init+0x134/0x260 [ 3293.641469][T16919] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3293.647178][T16919] ? vprintk_func+0x81/0x17e [ 3293.651753][T16919] ? hwsim_register_received_nl+0x400/0x400 [ 3293.657629][T16919] hwsim_new_radio_nl+0x905/0xf60 [ 3293.662647][T16919] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3293.668102][T16919] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3293.673977][T16919] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3293.680406][T16919] genl_rcv_msg+0x627/0xdf0 [ 3293.684904][T16919] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3293.691213][T16919] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3293.696487][T16919] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3293.701967][T16919] netlink_rcv_skb+0x15a/0x410 [ 3293.706766][T16919] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3293.713092][T16919] ? netlink_ack+0xa80/0xa80 [ 3293.717842][T16919] genl_rcv+0x24/0x40 [ 3293.721823][T16919] netlink_unicast+0x537/0x740 [ 3293.726625][T16919] ? netlink_attachskb+0x810/0x810 [ 3293.732378][T16919] ? _copy_from_iter_full+0x25c/0x870 [ 3293.737729][T16919] ? __phys_addr_symbol+0x2c/0x70 [ 3293.742748][T16919] ? __check_object_size+0x171/0x437 [ 3293.748077][T16919] netlink_sendmsg+0x882/0xe10 [ 3293.752826][T16919] ? netlink_unicast+0x740/0x740 [ 3293.757740][T16919] ? security_socket_sendmsg+0x30/0xb0 [ 3293.763192][T16919] ? netlink_unicast+0x740/0x740 [ 3293.768116][T16919] sock_sendmsg+0xcf/0x120 [ 3293.772522][T16919] ____sys_sendmsg+0x6b9/0x7d0 [ 3293.777262][T16919] ? kernel_sendmsg+0x50/0x50 [ 3293.781944][T16919] ? mark_lock+0xbc/0x1220 [ 3293.786362][T16919] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3293.791815][T16919] ___sys_sendmsg+0x100/0x170 [ 3293.796470][T16919] ? sendmsg_copy_msghdr+0x70/0x70 [ 3293.801578][T16919] ? __fget_files+0x12a/0x4f0 [ 3293.806246][T16919] ? __fget_files+0x329/0x4f0 [ 3293.810905][T16919] ? ksys_dup3+0x3c0/0x3c0 [ 3293.815360][T16919] ? lock_acquire+0x197/0x420 [ 3293.820061][T16919] ? __might_fault+0xef/0x1d0 [ 3293.824735][T16919] ? __fget_light+0x208/0x270 [ 3293.829437][T16919] __sys_sendmsg+0xec/0x1b0 [ 3293.833935][T16919] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3293.839009][T16919] ? __x64_sys_futex+0x380/0x4f0 [ 3293.843965][T16919] ? trace_hardirqs_off_caller+0x55/0x230 [ 3293.849730][T16919] ? do_syscall_64+0x21/0x7d0 [ 3293.854392][T16919] do_syscall_64+0xf6/0x7d0 [ 3293.858883][T16919] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3293.864757][T16919] RIP: 0033:0x45c849 [ 3293.868631][T16919] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3293.888223][T16919] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3293.896621][T16919] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3293.904575][T16919] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3293.912528][T16919] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3293.920484][T16919] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3293.928443][T16919] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:47:28 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024002805d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:28 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60106811400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:28 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0848000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:28 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d3524fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3301.234544][T16937] netlink: 18458 bytes leftover after parsing attributes in process `syz-executor.3'. 23:47:28 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d040ffc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3301.351021][T16938] netlink: 18404 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3301.376041][T16938] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3301.376041][T16938] !' [ 3301.387681][T16938] CPU: 0 PID: 16938 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3301.396375][T16938] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3301.406433][T16938] Call Trace: [ 3301.409739][T16938] dump_stack+0x188/0x20d [ 3301.414093][T16938] sysfs_warn_dup.cold+0x1c/0x2d [ 3301.419046][T16938] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3301.425123][T16938] sysfs_create_link+0x61/0xc0 [ 3301.429902][T16938] device_add+0x71c/0x1bc0 [ 3301.434332][T16938] ? uevent_show+0x360/0x360 [ 3301.438932][T16938] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3301.444924][T16938] wiphy_register+0x1c46/0x2720 23:47:28 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60106c11400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3301.449938][T16938] ? wiphy_unregister+0xf90/0xf90 [ 3301.454977][T16938] ? __kmalloc+0x629/0x7a0 [ 3301.459402][T16938] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3301.464963][T16938] ieee80211_register_hw+0x13d4/0x36a0 [ 3301.470435][T16938] ? calibrate_delay.cold+0x3db/0x3f6 [ 3301.475826][T16938] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3301.481310][T16938] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3301.486871][T16938] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3301.493505][T16938] ? hrtimer_init+0x36/0x320 [ 3301.498112][T16938] ? memset+0x20/0x40 [ 3301.502102][T16938] ? __hrtimer_init+0x134/0x260 [ 3301.506971][T16938] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3301.512699][T16938] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3301.518003][T16938] ? hwsim_register_received_nl+0x400/0x400 [ 3301.523914][T16938] ? hwsim_new_radio_nl+0x286/0xf60 [ 3301.529121][T16938] hwsim_new_radio_nl+0x905/0xf60 [ 3301.534151][T16938] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3301.539622][T16938] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3301.545520][T16938] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3301.551255][T16938] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3301.557606][T16938] genl_rcv_msg+0x627/0xdf0 [ 3301.562124][T16938] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3301.568455][T16938] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3301.573737][T16938] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3301.579196][T16938] netlink_rcv_skb+0x15a/0x410 [ 3301.583946][T16938] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3301.590270][T16938] ? netlink_ack+0xa80/0xa80 [ 3301.594862][T16938] genl_rcv+0x24/0x40 [ 3301.598829][T16938] netlink_unicast+0x537/0x740 [ 3301.603618][T16938] ? netlink_attachskb+0x810/0x810 [ 3301.608723][T16938] ? _copy_from_iter_full+0x25c/0x870 [ 3301.614079][T16938] ? __phys_addr_symbol+0x2c/0x70 [ 3301.619106][T16938] ? __check_object_size+0x171/0x437 [ 3301.624490][T16938] netlink_sendmsg+0x882/0xe10 [ 3301.629271][T16938] ? aa_af_perm+0x260/0x260 [ 3301.633851][T16938] ? netlink_unicast+0x740/0x740 [ 3301.638780][T16938] ? netlink_unicast+0x740/0x740 [ 3301.643715][T16938] sock_sendmsg+0xcf/0x120 [ 3301.648135][T16938] ____sys_sendmsg+0x6b9/0x7d0 [ 3301.652893][T16938] ? kernel_sendmsg+0x50/0x50 [ 3301.657559][T16938] ? mark_lock+0xbc/0x1220 [ 3301.661974][T16938] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3301.667446][T16938] ___sys_sendmsg+0x100/0x170 [ 3301.672121][T16938] ? sendmsg_copy_msghdr+0x70/0x70 [ 3301.677255][T16938] ? __fget_files+0x329/0x4f0 [ 3301.681942][T16938] ? ksys_dup3+0x3c0/0x3c0 [ 3301.686361][T16938] ? lock_acquire+0x197/0x420 [ 3301.691039][T16938] ? __might_fault+0xef/0x1d0 [ 3301.695741][T16938] ? __fget_light+0x208/0x270 [ 3301.700421][T16938] __sys_sendmsg+0xec/0x1b0 [ 3301.704935][T16938] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3301.709970][T16938] ? __x64_sys_futex+0x380/0x4f0 [ 3301.714910][T16938] ? trace_hardirqs_off_caller+0x55/0x230 [ 3301.720630][T16938] ? do_syscall_64+0x21/0x7d0 [ 3301.725368][T16938] do_syscall_64+0xf6/0x7d0 [ 3301.729876][T16938] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3301.735768][T16938] RIP: 0033:0x45c849 [ 3301.739670][T16938] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3301.759275][T16938] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3301.767752][T16938] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3301.775770][T16938] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3301.783733][T16938] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3301.791700][T16938] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff 23:47:28 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0948000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3301.799667][T16938] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3301.819680][T16943] netlink: 'syz-executor.5': attribute type 8 has an invalid length. [ 3301.832224][T16943] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3301.865636][T16943] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3301.865636][T16943] !' [ 3301.876439][T16943] CPU: 0 PID: 16943 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3301.885219][T16943] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3301.895288][T16943] Call Trace: [ 3301.898581][T16943] dump_stack+0x188/0x20d [ 3301.902923][T16943] sysfs_warn_dup.cold+0x1c/0x2d [ 3301.907879][T16943] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3301.913961][T16943] sysfs_create_link+0x61/0xc0 [ 3301.918727][T16943] device_add+0x71c/0x1bc0 [ 3301.923168][T16943] ? uevent_show+0x360/0x360 [ 3301.927775][T16943] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3301.933784][T16943] wiphy_register+0x1c46/0x2720 [ 3301.938653][T16943] ? wiphy_unregister+0xf90/0xf90 [ 3301.943691][T16943] ? __kmalloc+0x629/0x7a0 [ 3301.948118][T16943] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3301.953682][T16943] ieee80211_register_hw+0x13d4/0x36a0 [ 3301.959141][T16943] ? __debug_object_init+0x4a1/0xe20 [ 3301.964412][T16943] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3301.969866][T16943] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3301.975407][T16943] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3301.981372][T16943] ? memset+0x20/0x40 [ 3301.985335][T16943] ? __hrtimer_init+0x134/0x260 [ 3301.990203][T16943] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3301.995922][T16943] ? vprintk_func+0x81/0x17e [ 3302.000525][T16943] ? hwsim_register_received_nl+0x400/0x400 [ 3302.006425][T16943] hwsim_new_radio_nl+0x905/0xf60 [ 3302.011501][T16943] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3302.016801][T16943] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3302.022736][T16943] genl_rcv_msg+0x627/0xdf0 [ 3302.027237][T16943] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3302.033551][T16943] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3302.038819][T16943] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3302.044275][T16943] netlink_rcv_skb+0x15a/0x410 [ 3302.049023][T16943] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3302.055336][T16943] ? netlink_ack+0xa80/0xa80 [ 3302.059946][T16943] genl_rcv+0x24/0x40 [ 3302.063938][T16943] netlink_unicast+0x537/0x740 [ 3302.068709][T16943] ? netlink_attachskb+0x810/0x810 [ 3302.073858][T16943] ? _copy_from_iter_full+0x25c/0x870 [ 3302.079222][T16943] ? __phys_addr_symbol+0x2c/0x70 [ 3302.084232][T16943] ? __check_object_size+0x171/0x437 [ 3302.089515][T16943] netlink_sendmsg+0x882/0xe10 [ 3302.094278][T16943] ? aa_af_perm+0x260/0x260 [ 3302.098764][T16943] ? netlink_unicast+0x740/0x740 [ 3302.103693][T16943] ? netlink_unicast+0x740/0x740 [ 3302.108616][T16943] sock_sendmsg+0xcf/0x120 [ 3302.113026][T16943] ____sys_sendmsg+0x6b9/0x7d0 [ 3302.117775][T16943] ? kernel_sendmsg+0x50/0x50 [ 3302.122434][T16943] ? mark_lock+0xbc/0x1220 [ 3302.126987][T16943] ___sys_sendmsg+0x100/0x170 [ 3302.131665][T16943] ? sendmsg_copy_msghdr+0x70/0x70 [ 3302.136779][T16943] ? __fget_files+0x329/0x4f0 [ 3302.141565][T16943] ? ksys_dup3+0x3c0/0x3c0 [ 3302.146030][T16943] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3302.151756][T16943] ? retint_kernel+0x2b/0x2b [ 3302.156344][T16943] ? __fget_light+0x208/0x270 [ 3302.161035][T16943] __sys_sendmsg+0xec/0x1b0 [ 3302.165539][T16943] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3302.170559][T16943] ? __x64_sys_futex+0x380/0x4f0 [ 3302.175554][T16943] ? trace_hardirqs_off_caller+0x55/0x230 [ 3302.181285][T16943] ? do_syscall_64+0x21/0x7d0 [ 3302.185954][T16943] do_syscall_64+0xf6/0x7d0 [ 3302.190457][T16943] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3302.196341][T16943] RIP: 0033:0x45c849 [ 3302.200231][T16943] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3302.219835][T16943] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3302.228254][T16943] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3302.236226][T16943] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3302.244189][T16943] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3302.252152][T16943] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3302.260266][T16943] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3302.277040][T16946] netlink: 18458 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3302.323031][T16951] netlink: 18405 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3302.365004][T16951] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3302.365004][T16951] !' [ 3302.375937][T16951] CPU: 1 PID: 16951 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3302.384641][T16951] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3302.394695][T16951] Call Trace: [ 3302.397969][T16951] dump_stack+0x188/0x20d [ 3302.402283][T16951] sysfs_warn_dup.cold+0x1c/0x2d [ 3302.407208][T16951] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3302.413306][T16951] sysfs_create_link+0x61/0xc0 [ 3302.418052][T16951] device_add+0x71c/0x1bc0 [ 3302.422467][T16951] ? __sanitizer_cov_trace_switch+0x32/0x70 [ 3302.428355][T16951] ? uevent_show+0x360/0x360 [ 3302.432946][T16951] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3302.438910][T16951] wiphy_register+0x1c46/0x2720 [ 3302.443752][T16951] ? wiphy_unregister+0xf90/0xf90 [ 3302.448761][T16951] ? __kmalloc+0x629/0x7a0 [ 3302.453162][T16951] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3302.458686][T16951] ? ieee80211_register_hw+0xbb6/0x36a0 [ 3302.464215][T16951] ieee80211_register_hw+0x13d4/0x36a0 [ 3302.469668][T16951] ? __debug_object_init+0x4a1/0xe20 [ 3302.474933][T16951] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3302.480381][T16951] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3302.485912][T16951] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3302.491870][T16951] ? memset+0x20/0x40 [ 3302.495833][T16951] ? __hrtimer_init+0x134/0x260 [ 3302.500662][T16951] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3302.506367][T16951] ? hwsim_register_received_nl+0x400/0x400 [ 3302.512239][T16951] hwsim_new_radio_nl+0x905/0xf60 [ 3302.517237][T16951] ? retint_kernel+0x2b/0x2b [ 3302.521808][T16951] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3302.527697][T16951] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3302.533998][T16951] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3302.540302][T16951] genl_rcv_msg+0x627/0xdf0 [ 3302.544784][T16951] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3302.551089][T16951] ? mark_held_locks+0x9f/0xe0 [ 3302.555829][T16951] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3302.561272][T16951] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3302.566969][T16951] netlink_rcv_skb+0x15a/0x410 [ 3302.571710][T16951] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3302.578012][T16951] ? netlink_ack+0xa80/0xa80 [ 3302.582595][T16951] genl_rcv+0x24/0x40 [ 3302.586553][T16951] netlink_unicast+0x537/0x740 [ 3302.591295][T16951] ? netlink_attachskb+0x810/0x810 [ 3302.596380][T16951] ? _copy_from_iter_full+0x25c/0x870 [ 3302.601728][T16951] ? __phys_addr_symbol+0x2c/0x70 [ 3302.606727][T16951] ? __check_object_size+0x171/0x437 [ 3302.611991][T16951] netlink_sendmsg+0x882/0xe10 [ 3302.616744][T16951] ? aa_af_perm+0x260/0x260 [ 3302.621225][T16951] ? netlink_unicast+0x740/0x740 [ 3302.626142][T16951] ? netlink_unicast+0x740/0x740 [ 3302.631056][T16951] sock_sendmsg+0xcf/0x120 [ 3302.635447][T16951] ____sys_sendmsg+0x6b9/0x7d0 [ 3302.640205][T16951] ? kernel_sendmsg+0x50/0x50 [ 3302.644876][T16951] ___sys_sendmsg+0x100/0x170 [ 3302.649531][T16951] ? sendmsg_copy_msghdr+0x70/0x70 [ 3302.654634][T16951] ? __fget_files+0x329/0x4f0 [ 3302.659303][T16951] ? ksys_dup3+0x3c0/0x3c0 [ 3302.663696][T16951] ? lock_acquire+0x197/0x420 [ 3302.668349][T16951] ? __might_fault+0xef/0x1d0 [ 3302.673005][T16951] ? __fget_light+0x208/0x270 [ 3302.677663][T16951] __sys_sendmsg+0xec/0x1b0 [ 3302.682147][T16951] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3302.687148][T16951] ? __x64_sys_futex+0x380/0x4f0 [ 3302.692081][T16951] ? trace_hardirqs_off_caller+0x55/0x230 [ 3302.697832][T16951] ? do_syscall_64+0x21/0x7d0 [ 3302.702496][T16951] do_syscall_64+0xf6/0x7d0 [ 3302.706990][T16951] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3302.712900][T16951] RIP: 0033:0x45c849 [ 3302.716775][T16951] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3302.736355][T16951] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3302.744740][T16951] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3302.752720][T16951] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3302.760671][T16951] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3302.768624][T16951] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3302.776570][T16951] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3307.393846][T16959] netlink: 16394 bytes leftover after parsing attributes in process `syz-executor.4'. [ 3307.421819][T16959] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3307.421819][T16959] !' [ 3307.431997][T16959] CPU: 1 PID: 16959 Comm: syz-executor.4 Not tainted 5.6.0-rc5-syzkaller #0 [ 3307.440675][T16959] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3307.450726][T16959] Call Trace: [ 3307.454009][T16959] dump_stack+0x188/0x20d [ 3307.458434][T16959] sysfs_warn_dup.cold+0x1c/0x2d [ 3307.463357][T16959] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3307.469418][T16959] sysfs_create_link+0x61/0xc0 [ 3307.474199][T16959] device_add+0x71c/0x1bc0 [ 3307.478606][T16959] ? uevent_show+0x360/0x360 [ 3307.483210][T16959] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3307.489214][T16959] wiphy_register+0x1c46/0x2720 [ 3307.494086][T16959] ? wiphy_unregister+0xf90/0xf90 [ 3307.499094][T16959] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3307.504835][T16959] ? retint_kernel+0x2b/0x2b [ 3307.509415][T16959] ? ieee80211_register_hw+0x1005/0x36a0 [ 3307.515039][T16959] ieee80211_register_hw+0x13d4/0x36a0 [ 3307.520487][T16959] ? __debug_object_init+0x4a1/0xe20 [ 3307.525762][T16959] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3307.531215][T16959] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3307.536752][T16959] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3307.542753][T16959] ? memset+0x20/0x40 [ 3307.546744][T16959] ? __hrtimer_init+0x134/0x260 [ 3307.551607][T16959] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3307.557345][T16959] ? hwsim_register_received_nl+0x400/0x400 [ 3307.563232][T16959] hwsim_new_radio_nl+0x905/0xf60 [ 3307.568242][T16959] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3307.574134][T16959] ? security_capable+0x3d/0xc0 [ 3307.578976][T16959] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3307.585295][T16959] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3307.591611][T16959] genl_rcv_msg+0x627/0xdf0 [ 3307.596101][T16959] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3307.602422][T16959] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3307.607692][T16959] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3307.613144][T16959] netlink_rcv_skb+0x15a/0x410 [ 3307.617890][T16959] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3307.624202][T16959] ? netlink_ack+0xa80/0xa80 [ 3307.628806][T16959] genl_rcv+0x24/0x40 [ 3307.632775][T16959] netlink_unicast+0x537/0x740 [ 3307.637529][T16959] ? netlink_attachskb+0x810/0x810 [ 3307.642624][T16959] ? _copy_from_iter_full+0x25c/0x870 [ 3307.647980][T16959] ? __phys_addr_symbol+0x2c/0x70 [ 3307.652990][T16959] ? __check_object_size+0x171/0x437 [ 3307.658259][T16959] netlink_sendmsg+0x882/0xe10 [ 3307.663009][T16959] ? aa_af_perm+0x260/0x260 [ 3307.667498][T16959] ? netlink_unicast+0x740/0x740 [ 3307.672431][T16959] ? retint_kernel+0x2b/0x2b [ 3307.677025][T16959] ? netlink_unicast+0x740/0x740 [ 3307.681965][T16959] sock_sendmsg+0xcf/0x120 [ 3307.686384][T16959] ____sys_sendmsg+0x6b9/0x7d0 [ 3307.691140][T16959] ? kernel_sendmsg+0x50/0x50 [ 3307.695810][T16959] ? mark_lock+0xbc/0x1220 [ 3307.700225][T16959] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3307.705678][T16959] ___sys_sendmsg+0x100/0x170 [ 3307.710342][T16959] ? sendmsg_copy_msghdr+0x70/0x70 [ 3307.715441][T16959] ? __fget_files+0x143/0x4f0 [ 3307.720107][T16959] ? __fget_files+0x329/0x4f0 [ 3307.724774][T16959] ? ksys_dup3+0x3c0/0x3c0 [ 3307.729171][T16959] ? lock_acquire+0x197/0x420 [ 3307.733842][T16959] ? __might_fault+0xef/0x1d0 [ 3307.738504][T16959] ? __fget_light+0x208/0x270 [ 3307.743169][T16959] __sys_sendmsg+0xec/0x1b0 [ 3307.747655][T16959] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3307.752676][T16959] ? trace_hardirqs_off_caller+0x55/0x230 [ 3307.758390][T16959] ? do_syscall_64+0x21/0x7d0 [ 3307.763077][T16959] do_syscall_64+0xf6/0x7d0 [ 3307.767577][T16959] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3307.773457][T16959] RIP: 0033:0x45c849 23:47:34 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100811400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:34 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60106811400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:34 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0435fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:34 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60107411400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:34 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0a48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3307.777353][T16959] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3307.796947][T16959] RSP: 002b:00007f5b9457dc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3307.805351][T16959] RAX: ffffffffffffffda RBX: 00007f5b9457e6d4 RCX: 000000000045c849 [ 3307.813314][T16959] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3307.821268][T16959] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3307.829231][T16959] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3307.837193][T16959] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3307.886245][T16965] netlink: 18458 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3308.007930][T16967] netlink: 18406 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3308.032971][T16967] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3308.032971][T16967] !' [ 3308.049040][T16967] CPU: 1 PID: 16967 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3308.057735][T16967] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3308.067778][T16967] Call Trace: [ 3308.071060][T16967] dump_stack+0x188/0x20d [ 3308.075380][T16967] sysfs_warn_dup.cold+0x1c/0x2d [ 3308.080306][T16967] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3308.086362][T16967] sysfs_create_link+0x61/0xc0 [ 3308.091116][T16967] device_add+0x71c/0x1bc0 [ 3308.095521][T16967] ? retint_kernel+0x2b/0x2b [ 3308.100093][T16967] ? uevent_show+0x360/0x360 [ 3308.104671][T16967] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3308.110760][T16967] wiphy_register+0x1c46/0x2720 [ 3308.115602][T16967] ? wiphy_unregister+0xf90/0xf90 [ 3308.120620][T16967] ? retint_kernel+0x2b/0x2b [ 3308.125306][T16967] ? ieee80211_register_hw+0xca9/0x36a0 [ 3308.130850][T16967] ieee80211_register_hw+0x13d4/0x36a0 [ 3308.136310][T16967] ? __debug_object_init+0x4a1/0xe20 [ 3308.141617][T16967] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3308.147071][T16967] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3308.152623][T16967] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3308.158601][T16967] ? memset+0x20/0x40 [ 3308.162632][T16967] ? __hrtimer_init+0x134/0x260 [ 3308.167473][T16967] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3308.173631][T16967] ? vprintk_func+0x81/0x17e [ 3308.178221][T16967] ? hwsim_register_received_nl+0x400/0x400 [ 3308.184115][T16967] hwsim_new_radio_nl+0x905/0xf60 [ 3308.189130][T16967] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3308.194456][T16967] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3308.200336][T16967] genl_rcv_msg+0x627/0xdf0 [ 3308.204825][T16967] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3308.211134][T16967] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3308.216405][T16967] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3308.221851][T16967] netlink_rcv_skb+0x15a/0x410 [ 3308.226646][T16967] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3308.232958][T16967] ? netlink_ack+0xa80/0xa80 [ 3308.237538][T16967] genl_rcv+0x24/0x40 [ 3308.241522][T16967] netlink_unicast+0x537/0x740 [ 3308.246271][T16967] ? netlink_attachskb+0x810/0x810 [ 3308.251359][T16967] ? _copy_from_iter_full+0x25c/0x870 [ 3308.256776][T16967] ? __phys_addr_symbol+0x2c/0x70 [ 3308.261838][T16967] ? __check_object_size+0x171/0x437 [ 3308.267110][T16967] netlink_sendmsg+0x882/0xe10 [ 3308.271857][T16967] ? aa_af_perm+0x260/0x260 [ 3308.276341][T16967] ? netlink_unicast+0x740/0x740 [ 3308.281258][T16967] ? apparmor_socket_sendmsg+0xf/0x30 [ 3308.286613][T16967] ? netlink_unicast+0x740/0x740 [ 3308.291531][T16967] sock_sendmsg+0xcf/0x120 [ 3308.295973][T16967] ____sys_sendmsg+0x6b9/0x7d0 [ 3308.300804][T16967] ? kernel_sendmsg+0x50/0x50 [ 3308.305463][T16967] ? mark_lock+0xbc/0x1220 [ 3308.309882][T16967] ___sys_sendmsg+0x100/0x170 [ 3308.314546][T16967] ? sendmsg_copy_msghdr+0x70/0x70 [ 3308.319643][T16967] ? __fget_files+0x329/0x4f0 [ 3308.324309][T16967] ? ksys_dup3+0x3c0/0x3c0 [ 3308.328716][T16967] ? lock_acquire+0x197/0x420 [ 3308.333375][T16967] ? __might_fault+0xef/0x1d0 [ 3308.338038][T16967] ? __fget_light+0x208/0x270 [ 3308.342699][T16967] __sys_sendmsg+0xec/0x1b0 [ 3308.347183][T16967] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3308.352360][T16967] ? __x64_sys_futex+0x380/0x4f0 [ 3308.357295][T16967] ? trace_hardirqs_off_caller+0x55/0x230 [ 3308.362993][T16967] ? do_syscall_64+0x21/0x7d0 [ 3308.367654][T16967] do_syscall_64+0xf6/0x7d0 [ 3308.372147][T16967] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3308.378033][T16967] RIP: 0033:0x45c849 [ 3308.381960][T16967] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3308.401549][T16967] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3308.409962][T16967] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3308.417949][T16967] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3308.425925][T16967] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3308.433941][T16967] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3308.441900][T16967] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3308.478276][T16966] netlink: 'syz-executor.5': attribute type 8 has an invalid length. [ 3308.501482][T16966] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3308.537911][T16966] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3308.537911][T16966] !' [ 3308.548484][T16966] CPU: 1 PID: 16966 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3308.557267][T16966] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3308.567334][T16966] Call Trace: [ 3308.570637][T16966] dump_stack+0x188/0x20d [ 3308.574988][T16966] sysfs_warn_dup.cold+0x1c/0x2d [ 3308.579952][T16966] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3308.586037][T16966] sysfs_create_link+0x61/0xc0 [ 3308.590811][T16966] device_add+0x71c/0x1bc0 [ 3308.595248][T16966] ? uevent_show+0x360/0x360 [ 3308.599869][T16966] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3308.605868][T16966] wiphy_register+0x1c46/0x2720 [ 3308.610849][T16966] ? wiphy_unregister+0xf90/0xf90 [ 3308.615957][T16966] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3308.621660][T16966] ? retint_kernel+0x2b/0x2b [ 3308.626245][T16966] ? ieee80211_register_hw+0x1368/0x36a0 [ 3308.631926][T16966] ieee80211_register_hw+0x13d4/0x36a0 [ 3308.637386][T16966] ? __debug_object_init+0x4a1/0xe20 [ 3308.642663][T16966] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3308.648102][T16966] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3308.653633][T16966] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3308.659598][T16966] ? memset+0x20/0x40 [ 3308.663565][T16966] ? __hrtimer_init+0x134/0x260 [ 3308.668396][T16966] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3308.674104][T16966] ? vprintk_func+0x81/0x17e [ 3308.678695][T16966] ? hwsim_register_received_nl+0x400/0x400 [ 3308.684589][T16966] hwsim_new_radio_nl+0x905/0xf60 [ 3308.689623][T16966] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3308.694898][T16966] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3308.700784][T16966] genl_rcv_msg+0x627/0xdf0 [ 3308.705284][T16966] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3308.711638][T16966] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3308.716910][T16966] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3308.722358][T16966] netlink_rcv_skb+0x15a/0x410 [ 3308.727151][T16966] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3308.733464][T16966] ? netlink_ack+0xa80/0xa80 [ 3308.738067][T16966] genl_rcv+0x24/0x40 [ 3308.742045][T16966] netlink_unicast+0x537/0x740 [ 3308.746805][T16966] ? netlink_attachskb+0x810/0x810 [ 3308.751911][T16966] ? _copy_from_iter_full+0x25c/0x870 [ 3308.757286][T16966] ? __phys_addr_symbol+0x2c/0x70 [ 3308.762297][T16966] ? __check_object_size+0x171/0x437 [ 3308.767575][T16966] netlink_sendmsg+0x882/0xe10 [ 3308.772330][T16966] ? aa_af_perm+0x260/0x260 [ 3308.776820][T16966] ? netlink_unicast+0x740/0x740 [ 3308.781747][T16966] ? netlink_unicast+0x740/0x740 [ 3308.786677][T16966] sock_sendmsg+0xcf/0x120 [ 3308.791080][T16966] ____sys_sendmsg+0x6b9/0x7d0 [ 3308.795829][T16966] ? kernel_sendmsg+0x50/0x50 [ 3308.800496][T16966] ? retint_kernel+0x2b/0x2b [ 3308.805082][T16966] ___sys_sendmsg+0x100/0x170 [ 3308.809744][T16966] ? sendmsg_copy_msghdr+0x70/0x70 [ 3308.814851][T16966] ? __fget_files+0x329/0x4f0 [ 3308.819515][T16966] ? ksys_dup3+0x3c0/0x3c0 [ 3308.823913][T16966] ? lock_acquire+0x197/0x420 [ 3308.828582][T16966] ? __might_fault+0xef/0x1d0 [ 3308.833262][T16966] ? __fget_light+0x208/0x270 [ 3308.837936][T16966] __sys_sendmsg+0xec/0x1b0 [ 3308.842433][T16966] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3308.847464][T16966] ? __x64_sys_futex+0x380/0x4f0 [ 3308.852399][T16966] ? trace_hardirqs_off_caller+0x55/0x230 [ 3308.858130][T16966] ? do_syscall_64+0x21/0x7d0 [ 3308.862803][T16966] do_syscall_64+0xf6/0x7d0 [ 3308.867303][T16966] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3308.873181][T16966] RIP: 0033:0x45c849 [ 3308.877064][T16966] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3308.896653][T16966] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3308.905047][T16966] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3308.913010][T16966] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3308.920984][T16966] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3308.928945][T16966] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3308.936896][T16966] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3308.954417][T16966] netlink: 'syz-executor.5': attribute type 8 has an invalid length. [ 3308.963216][T16966] netlink: 185520 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3308.974167][T16966] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3308.974167][T16966] !' [ 3308.983998][T16966] CPU: 1 PID: 16966 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3308.992703][T16966] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3309.002756][T16966] Call Trace: [ 3309.006036][T16966] dump_stack+0x188/0x20d [ 3309.010356][T16966] sysfs_warn_dup.cold+0x1c/0x2d [ 3309.015277][T16966] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3309.021323][T16966] sysfs_create_link+0x61/0xc0 [ 3309.026069][T16966] device_add+0x71c/0x1bc0 [ 3309.030467][T16966] ? uevent_show+0x360/0x360 [ 3309.035070][T16966] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3309.041047][T16966] wiphy_register+0x1c46/0x2720 [ 3309.045897][T16966] ? wiphy_unregister+0xf90/0xf90 [ 3309.050948][T16966] ? __kmalloc+0x629/0x7a0 [ 3309.055345][T16966] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3309.060875][T16966] ieee80211_register_hw+0x13d4/0x36a0 [ 3309.066359][T16966] ? __debug_object_init+0x4a1/0xe20 [ 3309.071634][T16966] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3309.077075][T16966] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3309.082613][T16966] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3309.088573][T16966] ? memset+0x20/0x40 [ 3309.092546][T16966] ? __hrtimer_init+0x134/0x260 [ 3309.097731][T16966] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3309.103441][T16966] ? vprintk_func+0x81/0x17e [ 3309.108038][T16966] ? hwsim_register_received_nl+0x400/0x400 [ 3309.113923][T16966] hwsim_new_radio_nl+0x905/0xf60 [ 3309.118981][T16966] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3309.124914][T16966] ? cap_capable+0x1eb/0x250 [ 3309.129496][T16966] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3309.135806][T16966] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3309.142118][T16966] genl_rcv_msg+0x627/0xdf0 [ 3309.146605][T16966] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3309.152932][T16966] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3309.158214][T16966] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3309.163707][T16966] netlink_rcv_skb+0x15a/0x410 [ 3309.168465][T16966] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3309.174820][T16966] ? netlink_ack+0xa80/0xa80 [ 3309.179460][T16966] genl_rcv+0x24/0x40 [ 3309.183444][T16966] netlink_unicast+0x537/0x740 [ 3309.188188][T16966] ? netlink_attachskb+0x810/0x810 [ 3309.193282][T16966] ? _copy_from_iter_full+0x25c/0x870 [ 3309.198636][T16966] ? __phys_addr_symbol+0x2c/0x70 [ 3309.203644][T16966] ? __check_object_size+0x171/0x437 [ 3309.208955][T16966] netlink_sendmsg+0x882/0xe10 [ 3309.213701][T16966] ? aa_af_perm+0x260/0x260 [ 3309.218184][T16966] ? netlink_unicast+0x740/0x740 [ 3309.223106][T16966] ? netlink_unicast+0x740/0x740 [ 3309.228021][T16966] sock_sendmsg+0xcf/0x120 [ 3309.232417][T16966] ____sys_sendmsg+0x6b9/0x7d0 [ 3309.237159][T16966] ? kernel_sendmsg+0x50/0x50 [ 3309.241817][T16966] ? __fget_files+0x307/0x4f0 [ 3309.246494][T16966] ___sys_sendmsg+0x100/0x170 [ 3309.251159][T16966] ? sendmsg_copy_msghdr+0x70/0x70 [ 3309.256267][T16966] ? __fget_files+0x329/0x4f0 [ 3309.260928][T16966] ? ksys_dup3+0x3c0/0x3c0 [ 3309.265336][T16966] ? lock_acquire+0x197/0x420 [ 3309.270003][T16966] ? __might_fault+0xef/0x1d0 [ 3309.274662][T16966] ? __fget_light+0x208/0x270 [ 3309.279325][T16966] __sys_sendmsg+0xec/0x1b0 [ 3309.283807][T16966] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3309.288824][T16966] ? __x64_sys_futex+0x380/0x4f0 [ 3309.293753][T16966] ? trace_hardirqs_off_caller+0x55/0x230 [ 3309.299451][T16966] ? do_syscall_64+0x21/0x7d0 [ 3309.304122][T16966] do_syscall_64+0xf6/0x7d0 [ 3309.308610][T16966] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3309.314481][T16966] RIP: 0033:0x45c849 [ 3309.318355][T16966] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3309.337946][T16966] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3309.346335][T16966] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3309.354286][T16966] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3309.362250][T16966] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3309.370209][T16966] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3309.378191][T16966] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:47:47 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024003505d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:47 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60107a11400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:47 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:47 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60020011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:47 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60106811400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3320.825197][T16981] netlink: 212940 bytes leftover after parsing attributes in process `syz-executor.5'. 23:47:48 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60040011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3320.945035][T16982] netlink: 18458 bytes leftover after parsing attributes in process `syz-executor.3'. 23:47:48 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100018400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3321.101431][T16983] netlink: 18407 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3321.134084][T16983] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3321.134084][T16983] !' [ 3321.170528][T16983] CPU: 1 PID: 16983 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3321.179365][T16983] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3321.189513][T16983] Call Trace: [ 3321.192814][T16983] dump_stack+0x188/0x20d [ 3321.197170][T16983] sysfs_warn_dup.cold+0x1c/0x2d [ 3321.202111][T16983] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3321.208162][T16983] sysfs_create_link+0x61/0xc0 [ 3321.212914][T16983] device_add+0x71c/0x1bc0 [ 3321.217333][T16983] ? ieee80211_set_bitrate_flags+0x134/0x5c0 [ 3321.223296][T16983] ? uevent_show+0x360/0x360 [ 3321.227876][T16983] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3321.233840][T16983] wiphy_register+0x1c46/0x2720 [ 3321.238681][T16983] ? wiphy_unregister+0xf90/0xf90 [ 3321.243691][T16983] ? retint_kernel+0x2b/0x2b [ 3321.248275][T16983] ieee80211_register_hw+0x13d4/0x36a0 [ 3321.253722][T16983] ? __debug_object_init+0x4a1/0xe20 [ 3321.259010][T16983] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3321.264465][T16983] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3321.270205][T16983] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3321.276189][T16983] ? memset+0x20/0x40 [ 3321.280161][T16983] ? __hrtimer_init+0x134/0x260 [ 3321.285021][T16983] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3321.290745][T16983] ? hwsim_register_received_nl+0x400/0x400 [ 3321.296623][T16983] hwsim_new_radio_nl+0x905/0xf60 [ 3321.301657][T16983] ? swapgs_restore_regs_and_return_to_usermode+0x40/0x40 [ 3321.308760][T16983] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3321.314637][T16983] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3321.320944][T16983] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3321.327269][T16983] genl_rcv_msg+0x627/0xdf0 [ 3321.331819][T16983] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3321.338144][T16983] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3321.343411][T16983] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3321.348866][T16983] netlink_rcv_skb+0x15a/0x410 [ 3321.353611][T16983] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3321.359921][T16983] ? netlink_ack+0xa80/0xa80 [ 3321.364496][T16983] genl_rcv+0x24/0x40 [ 3321.368461][T16983] netlink_unicast+0x537/0x740 [ 3321.373280][T16983] ? netlink_attachskb+0x810/0x810 [ 3321.378378][T16983] ? _copy_from_iter_full+0x25c/0x870 [ 3321.383744][T16983] ? __phys_addr_symbol+0x2c/0x70 [ 3321.388763][T16983] ? __check_object_size+0x171/0x437 [ 3321.394089][T16983] netlink_sendmsg+0x882/0xe10 [ 3321.398851][T16983] ? aa_af_perm+0x260/0x260 [ 3321.403339][T16983] ? netlink_unicast+0x740/0x740 [ 3321.408319][T16983] ? netlink_unicast+0x740/0x740 [ 3321.413258][T16983] sock_sendmsg+0xcf/0x120 [ 3321.417933][T16983] ____sys_sendmsg+0x6b9/0x7d0 [ 3321.422677][T16983] ? kernel_sendmsg+0x50/0x50 [ 3321.427338][T16983] ? mark_lock+0xbc/0x1220 [ 3321.431748][T16983] ___sys_sendmsg+0x100/0x170 [ 3321.436421][T16983] ? sendmsg_copy_msghdr+0x70/0x70 [ 3321.441523][T16983] ? __fget_files+0x329/0x4f0 [ 3321.446194][T16983] ? ksys_dup3+0x3c0/0x3c0 [ 3321.450616][T16983] ? lock_acquire+0x209/0x420 [ 3321.455326][T16983] ? __fget_light+0x208/0x270 [ 3321.459993][T16983] __sys_sendmsg+0xec/0x1b0 [ 3321.464483][T16983] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3321.469727][T16983] ? do_syscall_64+0x4f/0x7d0 [ 3321.474397][T16983] do_syscall_64+0xf6/0x7d0 [ 3321.478891][T16983] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3321.484768][T16983] RIP: 0033:0x45c849 [ 3321.488659][T16983] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3321.508263][T16983] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3321.516680][T16983] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3321.524676][T16983] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3321.532680][T16983] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3321.540649][T16983] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3321.548628][T16983] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3321.571682][T16989] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. 23:47:52 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:52 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60060011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:52 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100028400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:47:52 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0c48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3325.454193][T17002] netlink: 206524 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3325.480756][T17002] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3325.480756][T17002] !' [ 3325.490734][T17002] CPU: 1 PID: 17002 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3325.499414][T17002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3325.509474][T17002] Call Trace: [ 3325.512768][T17002] dump_stack+0x188/0x20d [ 3325.517110][T17002] sysfs_warn_dup.cold+0x1c/0x2d [ 3325.522065][T17002] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3325.528123][T17002] sysfs_create_link+0x61/0xc0 [ 3325.532897][T17002] device_add+0x71c/0x1bc0 [ 3325.537309][T17002] ? uevent_show+0x360/0x360 [ 3325.541881][T17002] ? wiphy_register+0x1c3e/0x2720 [ 3325.547044][T17002] wiphy_register+0x1c46/0x2720 [ 3325.551905][T17002] ? wiphy_unregister+0xf90/0xf90 [ 3325.556942][T17002] ? __kmalloc+0x629/0x7a0 [ 3325.561361][T17002] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3325.566911][T17002] ? ieee80211_register_hw+0x1c6b/0x36a0 [ 3325.572552][T17002] ieee80211_register_hw+0x13d4/0x36a0 [ 3325.578014][T17002] ? calibrate_delay.cold+0x3db/0x3f6 [ 3325.583373][T17002] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3325.588814][T17002] ? retint_kernel+0x2b/0x2b [ 3325.593414][T17002] ? memset+0x20/0x40 [ 3325.597389][T17002] ? __hrtimer_init+0x134/0x260 [ 3325.602227][T17002] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3325.607936][T17002] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3325.613244][T17002] ? hwsim_register_received_nl+0x400/0x400 [ 3325.619139][T17002] hwsim_new_radio_nl+0x905/0xf60 [ 3325.624148][T17002] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3325.630030][T17002] ? cap_capable+0x1eb/0x250 [ 3325.634664][T17002] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3325.640980][T17002] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3325.647310][T17002] genl_rcv_msg+0x627/0xdf0 [ 3325.651818][T17002] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3325.658191][T17002] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3325.663647][T17002] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3325.669369][T17002] ? netlink_rcv_skb+0xb1/0x410 [ 3325.674218][T17002] netlink_rcv_skb+0x15a/0x410 [ 3325.678990][T17002] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3325.685304][T17002] ? netlink_ack+0xa80/0xa80 [ 3325.689901][T17002] genl_rcv+0x24/0x40 [ 3325.693905][T17002] netlink_unicast+0x537/0x740 [ 3325.698713][T17002] ? netlink_attachskb+0x810/0x810 [ 3325.703818][T17002] ? _copy_from_iter_full+0x25c/0x870 [ 3325.709188][T17002] ? __phys_addr_symbol+0x2c/0x70 [ 3325.714213][T17002] ? __check_object_size+0x171/0x437 [ 3325.719515][T17002] netlink_sendmsg+0x882/0xe10 [ 3325.724275][T17002] ? aa_af_perm+0x260/0x260 [ 3325.728763][T17002] ? netlink_unicast+0x740/0x740 [ 3325.733709][T17002] ? netlink_unicast+0x740/0x740 [ 3325.738643][T17002] sock_sendmsg+0xcf/0x120 [ 3325.743043][T17002] ____sys_sendmsg+0x6b9/0x7d0 [ 3325.747789][T17002] ? kernel_sendmsg+0x50/0x50 [ 3325.752459][T17002] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3325.757939][T17002] ___sys_sendmsg+0x100/0x170 [ 3325.762606][T17002] ? sendmsg_copy_msghdr+0x70/0x70 [ 3325.767721][T17002] ? __fget_files+0x329/0x4f0 [ 3325.772404][T17002] ? ksys_dup3+0x3c0/0x3c0 [ 3325.776816][T17002] ? __fget_light+0x208/0x270 [ 3325.781478][T17002] __sys_sendmsg+0xec/0x1b0 [ 3325.785961][T17002] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3325.790974][T17002] ? __x64_sys_futex+0x380/0x4f0 [ 3325.795911][T17002] ? trace_hardirqs_off_caller+0x55/0x230 [ 3325.801625][T17002] ? do_syscall_64+0x21/0x7d0 [ 3325.806299][T17002] do_syscall_64+0xf6/0x7d0 [ 3325.810802][T17002] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3325.816733][T17002] RIP: 0033:0x45c849 [ 3325.820627][T17002] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3325.840232][T17002] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3325.848655][T17002] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3325.856610][T17002] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3325.864576][T17002] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3325.872559][T17002] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3325.880642][T17002] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3325.905510][T17001] netlink: 18408 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3325.930199][T17001] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3325.930199][T17001] !' [ 3325.958362][T17001] CPU: 0 PID: 17001 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3325.967075][T17001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3325.977140][T17001] Call Trace: [ 3325.980450][T17001] dump_stack+0x188/0x20d [ 3325.984793][T17001] sysfs_warn_dup.cold+0x1c/0x2d [ 3325.989744][T17001] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3325.995822][T17001] sysfs_create_link+0x61/0xc0 [ 3326.000594][T17001] device_add+0x71c/0x1bc0 23:47:53 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60070011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3326.005014][T17001] ? uevent_show+0x360/0x360 [ 3326.009618][T17001] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3326.015616][T17001] wiphy_register+0x1c46/0x2720 [ 3326.020493][T17001] ? wiphy_unregister+0xf90/0xf90 [ 3326.025529][T17001] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3326.031267][T17001] ? retint_kernel+0x2b/0x2b [ 3326.035866][T17001] ? ieee80211_register_hw+0x10a8/0x36a0 [ 3326.041485][T17001] ieee80211_register_hw+0x13d4/0x36a0 [ 3326.046928][T17001] ? __debug_object_init+0x4a1/0xe20 [ 3326.052199][T17001] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3326.057644][T17001] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3326.063209][T17001] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3326.069170][T17001] ? memset+0x20/0x40 [ 3326.073134][T17001] ? __hrtimer_init+0x134/0x260 [ 3326.077970][T17001] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3326.083679][T17001] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3326.088956][T17001] ? hwsim_register_received_nl+0x400/0x400 [ 3326.094843][T17001] hwsim_new_radio_nl+0x905/0xf60 [ 3326.099901][T17001] ? swapgs_restore_regs_and_return_to_usermode+0x40/0x40 [ 3326.107001][T17001] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3326.112888][T17001] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3326.119193][T17001] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3326.125538][T17001] genl_rcv_msg+0x627/0xdf0 [ 3326.130036][T17001] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3326.136361][T17001] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3326.141635][T17001] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3326.147083][T17001] netlink_rcv_skb+0x15a/0x410 [ 3326.151827][T17001] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3326.158144][T17001] ? netlink_ack+0xa80/0xa80 [ 3326.162733][T17001] genl_rcv+0x24/0x40 [ 3326.166695][T17001] netlink_unicast+0x537/0x740 [ 3326.171446][T17001] ? netlink_attachskb+0x810/0x810 [ 3326.176535][T17001] ? _copy_from_iter_full+0x25c/0x870 [ 3326.181924][T17001] ? __phys_addr_symbol+0x2c/0x70 [ 3326.186927][T17001] ? __check_object_size+0x171/0x437 [ 3326.192209][T17001] netlink_sendmsg+0x882/0xe10 [ 3326.196970][T17001] ? aa_af_perm+0x260/0x260 [ 3326.201462][T17001] ? netlink_unicast+0x740/0x740 [ 3326.206403][T17001] ? netlink_unicast+0x740/0x740 [ 3326.211332][T17001] sock_sendmsg+0xcf/0x120 [ 3326.215735][T17001] ____sys_sendmsg+0x6b9/0x7d0 [ 3326.220486][T17001] ? kernel_sendmsg+0x50/0x50 [ 3326.225145][T17001] ? mark_lock+0xbc/0x1220 [ 3326.229550][T17001] ___sys_sendmsg+0x100/0x170 [ 3326.234223][T17001] ? sendmsg_copy_msghdr+0x70/0x70 [ 3326.239323][T17001] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3326.244763][T17001] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3326.250033][T17001] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3326.255479][T17001] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3326.261182][T17001] ? retint_kernel+0x2b/0x2b [ 3326.265759][T17001] ? sockfd_lookup_light+0xd9/0x170 [ 3326.270938][T17001] ? sockfd_lookup_light+0x100/0x170 [ 3326.276208][T17001] __sys_sendmsg+0xec/0x1b0 [ 3326.280694][T17001] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3326.285709][T17001] ? do_syscall_64+0x4f/0x7d0 [ 3326.290386][T17001] do_syscall_64+0xf6/0x7d0 [ 3326.294882][T17001] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3326.300769][T17001] RIP: 0033:0x45c849 [ 3326.304672][T17001] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3326.324279][T17001] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3326.332679][T17001] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3326.340633][T17001] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3326.348587][T17001] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3326.356543][T17001] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3326.364506][T17001] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3326.403537][T16999] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3326.446237][T17006] netlink: 206524 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3326.491584][T17006] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3326.491584][T17006] !' [ 3326.502266][T17006] CPU: 1 PID: 17006 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3326.510947][T17006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3326.521036][T17006] Call Trace: [ 3326.524327][T17006] dump_stack+0x188/0x20d [ 3326.528674][T17006] sysfs_warn_dup.cold+0x1c/0x2d [ 3326.533644][T17006] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3326.539737][T17006] sysfs_create_link+0x61/0xc0 [ 3326.544483][T17006] device_add+0x71c/0x1bc0 [ 3326.548880][T17006] ? __sanitizer_cov_trace_switch+0x1c/0x70 [ 3326.554752][T17006] ? uevent_show+0x360/0x360 [ 3326.559336][T17006] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3326.565317][T17006] wiphy_register+0x1c46/0x2720 [ 3326.570165][T17006] ? wiphy_unregister+0xf90/0xf90 [ 3326.575167][T17006] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3326.580868][T17006] ? retint_kernel+0x2b/0x2b [ 3326.585443][T17006] ieee80211_register_hw+0x13d4/0x36a0 [ 3326.590882][T17006] ? __debug_object_init+0x4a1/0xe20 [ 3326.596165][T17006] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3326.601617][T17006] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3326.607148][T17006] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3326.613124][T17006] ? memset+0x20/0x40 [ 3326.617141][T17006] ? __hrtimer_init+0x134/0x260 [ 3326.622027][T17006] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3326.627731][T17006] ? vprintk_func+0x81/0x17e [ 3326.632310][T17006] ? hwsim_register_received_nl+0x400/0x400 [ 3326.638210][T17006] hwsim_new_radio_nl+0x905/0xf60 [ 3326.643224][T17006] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3326.648664][T17006] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3326.654533][T17006] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3326.660237][T17006] genl_rcv_msg+0x627/0xdf0 [ 3326.664722][T17006] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3326.671032][T17006] ? retint_kernel+0x2b/0x2b [ 3326.675605][T17006] netlink_rcv_skb+0x15a/0x410 [ 3326.680348][T17006] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3326.686649][T17006] ? netlink_ack+0xa80/0xa80 [ 3326.691224][T17006] genl_rcv+0x24/0x40 [ 3326.695184][T17006] netlink_unicast+0x537/0x740 [ 3326.699929][T17006] ? netlink_attachskb+0x810/0x810 [ 3326.705020][T17006] netlink_sendmsg+0x882/0xe10 [ 3326.709784][T17006] ? aa_af_perm+0x260/0x260 [ 3326.714370][T17006] ? netlink_unicast+0x740/0x740 [ 3326.719316][T17006] ? retint_kernel+0x2b/0x2b [ 3326.723922][T17006] ? netlink_unicast+0x740/0x740 [ 3326.728855][T17006] sock_sendmsg+0xcf/0x120 [ 3326.733256][T17006] ____sys_sendmsg+0x6b9/0x7d0 [ 3326.738004][T17006] ? kernel_sendmsg+0x50/0x50 [ 3326.742772][T17006] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3326.748232][T17006] ___sys_sendmsg+0x100/0x170 [ 3326.752898][T17006] ? sendmsg_copy_msghdr+0x70/0x70 [ 3326.758000][T17006] ? __fget_files+0x329/0x4f0 [ 3326.762707][T17006] ? ksys_dup3+0x3c0/0x3c0 [ 3326.767102][T17006] ? lock_acquire+0x197/0x420 [ 3326.771774][T17006] ? __might_fault+0xef/0x1d0 [ 3326.776448][T17006] ? __might_fault+0xf4/0x1d0 [ 3326.781120][T17006] ? __fget_light+0x208/0x270 [ 3326.785783][T17006] __sys_sendmsg+0xec/0x1b0 [ 3326.790271][T17006] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3326.795277][T17006] ? __x64_sys_futex+0x380/0x4f0 [ 3326.800201][T17006] ? trace_hardirqs_off_caller+0x55/0x230 [ 3326.805913][T17006] ? do_syscall_64+0x21/0x7d0 [ 3326.810570][T17006] do_syscall_64+0xf6/0x7d0 [ 3326.815057][T17006] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3326.820927][T17006] RIP: 0033:0x45c849 [ 3326.824819][T17006] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3326.844413][T17006] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3326.852856][T17006] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3326.860821][T17006] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3326.868788][T17006] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3326.876776][T17006] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3326.884724][T17006] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3326.908141][T17003] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. 23:48:09 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024006b05d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:48:09 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0d48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:48:09 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc600a0011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:48:09 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100035400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3342.499617][T17027] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3342.531578][T17026] netlink: 189576 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3342.564131][T17026] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3342.564131][T17026] !' [ 3342.574156][T17026] CPU: 1 PID: 17026 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3342.582830][T17026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3342.592880][T17026] Call Trace: [ 3342.596220][T17026] dump_stack+0x188/0x20d [ 3342.600554][T17026] sysfs_warn_dup.cold+0x1c/0x2d [ 3342.605503][T17026] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3342.611582][T17026] sysfs_create_link+0x61/0xc0 [ 3342.616328][T17026] device_add+0x71c/0x1bc0 [ 3342.620741][T17026] ? retint_kernel+0x2b/0x2b [ 3342.625336][T17026] ? uevent_show+0x360/0x360 [ 3342.629942][T17026] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3342.635909][T17026] wiphy_register+0x1c46/0x2720 [ 3342.640766][T17026] ? wiphy_unregister+0xf90/0xf90 [ 3342.645780][T17026] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3342.651530][T17026] ? retint_kernel+0x2b/0x2b [ 3342.656108][T17026] ? ieee80211_register_hw+0x11f4/0x36a0 [ 3342.661736][T17026] ieee80211_register_hw+0x13d4/0x36a0 [ 3342.667207][T17026] ? __debug_object_init+0x4a1/0xe20 [ 3342.672488][T17026] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3342.677981][T17026] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3342.683520][T17026] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3342.689497][T17026] ? memset+0x20/0x40 [ 3342.693461][T17026] ? __hrtimer_init+0x134/0x260 [ 3342.698308][T17026] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3342.704050][T17026] ? vprintk_func+0x81/0x17e [ 3342.708655][T17026] ? hwsim_register_received_nl+0x400/0x400 [ 3342.715104][T17026] hwsim_new_radio_nl+0x905/0xf60 [ 3342.720127][T17026] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3342.725427][T17026] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3342.731323][T17026] genl_rcv_msg+0x627/0xdf0 [ 3342.735824][T17026] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3342.742164][T17026] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3342.747462][T17026] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3342.752923][T17026] netlink_rcv_skb+0x15a/0x410 [ 3342.757670][T17026] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3342.763994][T17026] ? netlink_ack+0xa80/0xa80 [ 3342.768583][T17026] genl_rcv+0x24/0x40 [ 3342.772558][T17026] netlink_unicast+0x537/0x740 [ 3342.777358][T17026] ? netlink_attachskb+0x810/0x810 [ 3342.782469][T17026] ? _copy_from_iter_full+0x25c/0x870 [ 3342.787834][T17026] ? __phys_addr_symbol+0x2c/0x70 [ 3342.792843][T17026] ? __check_object_size+0x171/0x437 [ 3342.798125][T17026] netlink_sendmsg+0x882/0xe10 [ 3342.802897][T17026] ? aa_af_perm+0x260/0x260 [ 3342.807396][T17026] ? netlink_unicast+0x740/0x740 [ 3342.812339][T17026] ? netlink_unicast+0x740/0x740 [ 3342.817271][T17026] sock_sendmsg+0xcf/0x120 [ 3342.821691][T17026] ____sys_sendmsg+0x6b9/0x7d0 [ 3342.826550][T17026] ? kernel_sendmsg+0x50/0x50 [ 3342.831223][T17026] ___sys_sendmsg+0x100/0x170 [ 3342.835908][T17026] ? sendmsg_copy_msghdr+0x70/0x70 [ 3342.841046][T17026] ? __fget_files+0x329/0x4f0 [ 3342.845738][T17026] ? ksys_dup3+0x3c0/0x3c0 [ 3342.850207][T17026] ? lock_acquire+0x197/0x420 [ 3342.854919][T17026] ? __might_fault+0xef/0x1d0 [ 3342.859603][T17026] ? __fget_light+0x208/0x270 [ 3342.864398][T17026] __sys_sendmsg+0xec/0x1b0 [ 3342.868912][T17026] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3342.874023][T17026] ? __x64_sys_futex+0x380/0x4f0 [ 3342.878968][T17026] ? trace_hardirqs_off_caller+0x55/0x230 [ 3342.884689][T17026] ? do_syscall_64+0x21/0x7d0 [ 3342.889381][T17026] do_syscall_64+0xf6/0x7d0 [ 3342.893896][T17026] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3342.899789][T17026] RIP: 0033:0x45c849 [ 3342.903687][T17026] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3342.923317][T17026] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3342.931740][T17026] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3342.939900][T17026] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3342.947873][T17026] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3342.955830][T17026] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3342.963799][T17026] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3342.991030][T17025] netlink: 18409 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3343.015033][T17025] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3343.015033][T17025] !' [ 3343.036318][T17025] CPU: 0 PID: 17025 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3343.045030][T17025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3343.055094][T17025] Call Trace: [ 3343.058389][T17025] dump_stack+0x188/0x20d [ 3343.062713][T17025] sysfs_warn_dup.cold+0x1c/0x2d [ 3343.067654][T17025] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3343.073733][T17025] sysfs_create_link+0x61/0xc0 [ 3343.078482][T17025] device_add+0x71c/0x1bc0 [ 3343.082889][T17025] ? retint_kernel+0x2b/0x2b [ 3343.087461][T17025] ? uevent_show+0x360/0x360 [ 3343.092034][T17025] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3343.098009][T17025] wiphy_register+0x1c46/0x2720 [ 3343.102861][T17025] ? wiphy_unregister+0xf90/0xf90 [ 3343.107876][T17025] ? retint_kernel+0x2b/0x2b [ 3343.112497][T17025] ieee80211_register_hw+0x13d4/0x36a0 [ 3343.117964][T17025] ? __debug_object_init+0x4a1/0xe20 [ 3343.123250][T17025] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3343.128696][T17025] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3343.134232][T17025] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3343.140205][T17025] ? memset+0x20/0x40 [ 3343.144178][T17025] ? __hrtimer_init+0x134/0x260 [ 3343.149013][T17025] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3343.154730][T17025] ? vprintk_func+0x81/0x17e [ 3343.159335][T17025] ? hwsim_register_received_nl+0x400/0x400 [ 3343.165258][T17025] hwsim_new_radio_nl+0x905/0xf60 [ 3343.170281][T17025] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3343.175917][T17025] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3343.181792][T17025] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3343.187619][T17025] ? genl_rcv_msg+0x4dd/0xdf0 [ 3343.192295][T17025] genl_rcv_msg+0x627/0xdf0 [ 3343.196794][T17025] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3343.203106][T17025] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3343.208838][T17025] netlink_rcv_skb+0x15a/0x410 [ 3343.213603][T17025] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3343.219940][T17025] ? netlink_ack+0xa80/0xa80 [ 3343.224561][T17025] genl_rcv+0x24/0x40 [ 3343.228549][T17025] netlink_unicast+0x537/0x740 [ 3343.233300][T17025] ? netlink_attachskb+0x810/0x810 [ 3343.238393][T17025] ? _copy_from_iter_full+0x25c/0x870 [ 3343.243757][T17025] ? __phys_addr_symbol+0x2c/0x70 [ 3343.248764][T17025] ? __check_object_size+0x171/0x437 [ 3343.254035][T17025] netlink_sendmsg+0x882/0xe10 [ 3343.258806][T17025] ? aa_af_perm+0x260/0x260 [ 3343.263314][T17025] ? netlink_unicast+0x740/0x740 [ 3343.268246][T17025] ? netlink_unicast+0x740/0x740 [ 3343.273200][T17025] sock_sendmsg+0xcf/0x120 [ 3343.277600][T17025] ____sys_sendmsg+0x6b9/0x7d0 [ 3343.282359][T17025] ? kernel_sendmsg+0x50/0x50 [ 3343.287021][T17025] ? mark_lock+0xbc/0x1220 [ 3343.291426][T17025] ___sys_sendmsg+0x100/0x170 [ 3343.296100][T17025] ? sendmsg_copy_msghdr+0x70/0x70 [ 3343.301207][T17025] ? __fget_files+0x329/0x4f0 [ 3343.305870][T17025] ? ksys_dup3+0x3c0/0x3c0 [ 3343.310265][T17025] ? lock_acquire+0x197/0x420 [ 3343.314936][T17025] ? __might_fault+0xef/0x1d0 [ 3343.319602][T17025] ? __fget_light+0x208/0x270 [ 3343.324264][T17025] __sys_sendmsg+0xec/0x1b0 [ 3343.328751][T17025] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3343.333772][T17025] ? do_syscall_64+0xbc/0x7d0 [ 3343.338435][T17025] do_syscall_64+0xf6/0x7d0 [ 3343.342926][T17025] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3343.348800][T17025] RIP: 0033:0x45c849 [ 3343.352678][T17025] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3343.372273][T17025] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3343.380666][T17025] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3343.388629][T17025] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3343.396583][T17025] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3343.404534][T17025] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3343.412489][T17025] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3343.424470][T17024] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3343.461514][T17025] netlink: 18409 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3343.474831][T17025] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3343.474831][T17025] !' [ 3343.503831][T17025] CPU: 0 PID: 17025 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3343.512564][T17025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3343.522625][T17025] Call Trace: [ 3343.525926][T17025] dump_stack+0x188/0x20d [ 3343.530271][T17025] sysfs_warn_dup.cold+0x1c/0x2d [ 3343.535201][T17025] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3343.541270][T17025] sysfs_create_link+0x61/0xc0 [ 3343.546043][T17025] device_add+0x71c/0x1bc0 [ 3343.550461][T17025] ? uevent_show+0x360/0x360 [ 3343.555697][T17025] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3343.561688][T17025] wiphy_register+0x1c46/0x2720 [ 3343.566540][T17025] ? wiphy_unregister+0xf90/0xf90 [ 3343.571553][T17025] ? __kmalloc+0x629/0x7a0 [ 3343.575951][T17025] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3343.581486][T17025] ieee80211_register_hw+0x13d4/0x36a0 [ 3343.586933][T17025] ? __debug_object_init+0x4a1/0xe20 [ 3343.592202][T17025] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3343.597653][T17025] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3343.603179][T17025] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3343.609184][T17025] ? memset+0x20/0x40 [ 3343.613153][T17025] ? __hrtimer_init+0x134/0x260 [ 3343.617996][T17025] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3343.623714][T17025] ? vprintk_func+0x81/0x17e [ 3343.628350][T17025] ? hwsim_register_received_nl+0x400/0x400 [ 3343.634232][T17025] hwsim_new_radio_nl+0x905/0xf60 [ 3343.639304][T17025] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3343.645183][T17025] ? cap_capable+0x1eb/0x250 [ 3343.649760][T17025] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3343.656065][T17025] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3343.662392][T17025] genl_rcv_msg+0x627/0xdf0 [ 3343.666881][T17025] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3343.673194][T17025] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3343.678637][T17025] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3343.684352][T17025] ? retint_kernel+0x2b/0x2b [ 3343.688938][T17025] netlink_rcv_skb+0x15a/0x410 [ 3343.693684][T17025] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3343.700007][T17025] ? netlink_ack+0xa80/0xa80 [ 3343.704588][T17025] genl_rcv+0x24/0x40 [ 3343.708550][T17025] netlink_unicast+0x537/0x740 [ 3343.713298][T17025] ? netlink_attachskb+0x810/0x810 [ 3343.718389][T17025] ? _copy_from_iter_full+0x25c/0x870 [ 3343.723753][T17025] ? __phys_addr_symbol+0x2c/0x70 [ 3343.728759][T17025] ? __check_object_size+0x171/0x437 [ 3343.734030][T17025] netlink_sendmsg+0x882/0xe10 [ 3343.738779][T17025] ? aa_af_perm+0x260/0x260 [ 3343.743272][T17025] ? netlink_unicast+0x740/0x740 [ 3343.748215][T17025] ? netlink_unicast+0x740/0x740 [ 3343.753157][T17025] sock_sendmsg+0xcf/0x120 [ 3343.757576][T17025] ____sys_sendmsg+0x6b9/0x7d0 [ 3343.762347][T17025] ? kernel_sendmsg+0x50/0x50 [ 3343.767015][T17025] ? mark_lock+0xbc/0x1220 [ 3343.771474][T17025] ___sys_sendmsg+0x100/0x170 [ 3343.776195][T17025] ? sendmsg_copy_msghdr+0x70/0x70 [ 3343.781306][T17025] ? __fget_files+0x329/0x4f0 [ 3343.785975][T17025] ? ksys_dup3+0x3c0/0x3c0 [ 3343.790374][T17025] ? lock_acquire+0x197/0x420 [ 3343.795032][T17025] ? __might_fault+0xef/0x1d0 [ 3343.799731][T17025] ? __fget_light+0x208/0x270 [ 3343.804396][T17025] __sys_sendmsg+0xec/0x1b0 [ 3343.808880][T17025] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3343.813893][T17025] ? do_syscall_64+0x4f/0x7d0 [ 3343.818550][T17025] do_syscall_64+0xf6/0x7d0 [ 3343.823037][T17025] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3343.828926][T17025] RIP: 0033:0x45c849 [ 3343.835263][T17025] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3343.854854][T17025] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3343.863251][T17025] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3343.871312][T17025] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3343.879307][T17025] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3343.887288][T17025] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3343.895295][T17025] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:48:11 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60106811400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:48:11 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:48:11 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc600c0011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:48:11 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100061400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:48:11 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0e48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3343.978339][T17033] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3344.113438][T17035] netlink: 189576 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3344.136812][T17035] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3344.136812][T17035] !' [ 3344.158981][T17035] CPU: 1 PID: 17035 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3344.167689][T17035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3344.177753][T17035] Call Trace: [ 3344.181055][T17035] dump_stack+0x188/0x20d [ 3344.185411][T17035] sysfs_warn_dup.cold+0x1c/0x2d [ 3344.190356][T17035] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3344.196440][T17035] sysfs_create_link+0x61/0xc0 [ 3344.201308][T17035] device_add+0x71c/0x1bc0 [ 3344.205812][T17035] ? uevent_show+0x360/0x360 23:48:11 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc6010006b400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3344.210426][T17035] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3344.216423][T17035] wiphy_register+0x1c46/0x2720 [ 3344.221294][T17035] ? wiphy_unregister+0xf90/0xf90 [ 3344.226334][T17035] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3344.232179][T17035] ? retint_kernel+0x2b/0x2b [ 3344.236798][T17035] ? ieee80211_register_hw+0x1005/0x36a0 [ 3344.242445][T17035] ieee80211_register_hw+0x13d4/0x36a0 [ 3344.247918][T17035] ? __debug_object_init+0x4a1/0xe20 [ 3344.253225][T17035] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3344.258687][T17035] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3344.264225][T17035] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3344.270294][T17035] ? memset+0x20/0x40 [ 3344.274271][T17035] ? __hrtimer_init+0x134/0x260 [ 3344.279124][T17035] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3344.284852][T17035] ? vprintk_func+0x81/0x17e [ 3344.289467][T17035] ? hwsim_register_received_nl+0x400/0x400 [ 3344.295364][T17035] hwsim_new_radio_nl+0x905/0xf60 [ 3344.300492][T17035] ? swapgs_restore_regs_and_return_to_usermode+0x40/0x40 [ 3344.307643][T17035] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3344.313551][T17035] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3344.319889][T17035] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3344.326235][T17035] genl_rcv_msg+0x627/0xdf0 [ 3344.330756][T17035] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3344.337088][T17035] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3344.342366][T17035] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3344.347828][T17035] netlink_rcv_skb+0x15a/0x410 [ 3344.352599][T17035] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3344.358945][T17035] ? netlink_ack+0xa80/0xa80 [ 3344.363541][T17035] genl_rcv+0x24/0x40 [ 3344.367614][T17035] netlink_unicast+0x537/0x740 [ 3344.372389][T17035] ? netlink_attachskb+0x810/0x810 [ 3344.377495][T17035] ? _copy_from_iter_full+0x25c/0x870 [ 3344.382863][T17035] ? __phys_addr_symbol+0x2c/0x70 [ 3344.387892][T17035] ? __check_object_size+0x171/0x437 [ 3344.393184][T17035] netlink_sendmsg+0x882/0xe10 [ 3344.397956][T17035] ? aa_af_perm+0x260/0x260 [ 3344.402523][T17035] ? netlink_unicast+0x740/0x740 [ 3344.407471][T17035] ? netlink_unicast+0x740/0x740 [ 3344.412422][T17035] sock_sendmsg+0xcf/0x120 [ 3344.416880][T17035] ____sys_sendmsg+0x6b9/0x7d0 [ 3344.421636][T17035] ? kernel_sendmsg+0x50/0x50 [ 3344.426357][T17035] ? mark_lock+0xbc/0x1220 [ 3344.430775][T17035] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3344.436253][T17035] ___sys_sendmsg+0x100/0x170 [ 3344.440933][T17035] ? sendmsg_copy_msghdr+0x70/0x70 [ 3344.446050][T17035] ? __fget_files+0x329/0x4f0 [ 3344.450735][T17035] ? ksys_dup3+0x3c0/0x3c0 [ 3344.455156][T17035] ? lock_acquire+0x197/0x420 [ 3344.459839][T17035] ? __might_fault+0xef/0x1d0 [ 3344.464515][T17035] ? __fget_light+0x208/0x270 [ 3344.469193][T17035] __sys_sendmsg+0xec/0x1b0 [ 3344.473702][T17035] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3344.478737][T17035] ? __x64_sys_futex+0x380/0x4f0 [ 3344.483703][T17035] ? trace_hardirqs_off_caller+0x55/0x230 [ 3344.489433][T17035] ? do_syscall_64+0x21/0x7d0 [ 3344.494221][T17035] do_syscall_64+0xf6/0x7d0 [ 3344.498746][T17035] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3344.504657][T17035] RIP: 0033:0x45c849 [ 3344.508563][T17035] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3344.528169][T17035] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3344.536713][T17035] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3344.544715][T17035] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3344.552689][T17035] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3344.560663][T17035] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3344.568650][T17035] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3344.592115][T17036] netlink: 18410 bytes leftover after parsing attributes in process `syz-executor.0'. 23:48:11 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60350011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3344.627939][T17036] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3344.627939][T17036] !' [ 3344.638405][T17036] CPU: 1 PID: 17036 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3344.647086][T17036] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3344.657232][T17036] Call Trace: [ 3344.660641][T17036] dump_stack+0x188/0x20d [ 3344.664986][T17036] sysfs_warn_dup.cold+0x1c/0x2d [ 3344.669944][T17036] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3344.676132][T17036] sysfs_create_link+0x61/0xc0 [ 3344.680908][T17036] device_add+0x71c/0x1bc0 [ 3344.685339][T17036] ? ieee80211_set_bitrate_flags+0x1fa/0x5c0 [ 3344.691314][T17036] ? uevent_show+0x360/0x360 [ 3344.695891][T17036] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3344.701875][T17036] wiphy_register+0x1c46/0x2720 [ 3344.706726][T17036] ? wiphy_unregister+0xf90/0xf90 [ 3344.711746][T17036] ? __kmalloc+0x629/0x7a0 [ 3344.716163][T17036] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3344.721711][T17036] ? ieee80211_register_hw+0x4dd/0x36a0 [ 3344.727267][T17036] ieee80211_register_hw+0x13d4/0x36a0 [ 3344.732723][T17036] ? __debug_object_init+0x4a1/0xe20 [ 3344.738016][T17036] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3344.743483][T17036] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3344.749044][T17036] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3344.755009][T17036] ? memset+0x20/0x40 [ 3344.758972][T17036] ? __hrtimer_init+0x134/0x260 [ 3344.763820][T17036] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3344.769547][T17036] ? vprintk_func+0x81/0x17e [ 3344.774193][T17036] ? hwsim_register_received_nl+0x400/0x400 [ 3344.780085][T17036] hwsim_new_radio_nl+0x905/0xf60 [ 3344.785143][T17036] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3344.790598][T17036] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3344.796473][T17036] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3344.802198][T17036] genl_rcv_msg+0x627/0xdf0 [ 3344.806694][T17036] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3344.813036][T17036] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 3344.818849][T17036] netlink_rcv_skb+0x15a/0x410 [ 3344.823605][T17036] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3344.829940][T17036] ? netlink_ack+0xa80/0xa80 [ 3344.834535][T17036] genl_rcv+0x24/0x40 [ 3344.838506][T17036] netlink_unicast+0x537/0x740 [ 3344.843279][T17036] ? netlink_attachskb+0x810/0x810 [ 3344.848403][T17036] ? _copy_from_iter_full+0x25c/0x870 [ 3344.853783][T17036] ? __phys_addr_symbol+0x2c/0x70 [ 3344.858980][T17036] ? __check_object_size+0x171/0x437 [ 3344.864264][T17036] netlink_sendmsg+0x882/0xe10 [ 3344.869019][T17036] ? aa_af_perm+0x260/0x260 [ 3344.873511][T17036] ? netlink_unicast+0x740/0x740 [ 3344.878437][T17036] ? netlink_unicast+0x740/0x740 [ 3344.883358][T17036] sock_sendmsg+0xcf/0x120 [ 3344.887758][T17036] ____sys_sendmsg+0x6b9/0x7d0 [ 3344.892505][T17036] ? kernel_sendmsg+0x50/0x50 [ 3344.897180][T17036] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3344.902630][T17036] ___sys_sendmsg+0x100/0x170 [ 3344.907302][T17036] ? retint_kernel+0x2b/0x2b [ 3344.911878][T17036] ? sendmsg_copy_msghdr+0x70/0x70 [ 3344.916988][T17036] ? __fget_files+0x417/0x4f0 [ 3344.921654][T17036] ? __fget_files+0x329/0x4f0 [ 3344.926338][T17036] ? ksys_dup3+0x3c0/0x3c0 [ 3344.930745][T17036] ? lock_acquire+0x197/0x420 [ 3344.935412][T17036] ? __might_fault+0xef/0x1d0 [ 3344.940086][T17036] ? __fget_light+0x208/0x270 [ 3344.944781][T17036] __sys_sendmsg+0xec/0x1b0 [ 3344.949283][T17036] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3344.954313][T17036] ? trace_hardirqs_off_caller+0x55/0x230 [ 3344.960033][T17036] ? do_syscall_64+0x21/0x7d0 [ 3344.964722][T17036] do_syscall_64+0xf6/0x7d0 [ 3344.969223][T17036] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3344.975115][T17036] RIP: 0033:0x45c849 [ 3344.979013][T17036] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3344.998615][T17036] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3345.007022][T17036] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3345.014979][T17036] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3345.022950][T17036] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3345.030912][T17036] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3345.038873][T17036] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3345.060848][T17040] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. 23:48:12 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc6010006c400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3345.095466][T17044] netlink: 212884 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3345.134998][T17044] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3345.134998][T17044] !' [ 3345.151595][T17044] CPU: 0 PID: 17044 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3345.160301][T17044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3345.170362][T17044] Call Trace: [ 3345.173662][T17044] dump_stack+0x188/0x20d [ 3345.178643][T17044] sysfs_warn_dup.cold+0x1c/0x2d [ 3345.183596][T17044] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3345.189716][T17044] sysfs_create_link+0x61/0xc0 [ 3345.194566][T17044] device_add+0x71c/0x1bc0 [ 3345.199008][T17044] ? retint_kernel+0x2b/0x2b [ 3345.203585][T17044] ? uevent_show+0x360/0x360 [ 3345.208174][T17044] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3345.214196][T17044] wiphy_register+0x1c46/0x2720 [ 3345.219082][T17044] ? wiphy_unregister+0xf90/0xf90 [ 3345.224087][T17044] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3345.229825][T17044] ? retint_kernel+0x2b/0x2b [ 3345.234400][T17044] ? ieee80211_register_hw+0xe94/0x36a0 [ 3345.239930][T17044] ieee80211_register_hw+0x13d4/0x36a0 [ 3345.245372][T17044] ? __debug_object_init+0x4a1/0xe20 [ 3345.250641][T17044] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3345.256115][T17044] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3345.261670][T17044] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3345.267652][T17044] ? memset+0x20/0x40 [ 3345.271635][T17044] ? __hrtimer_init+0x134/0x260 [ 3345.276483][T17044] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3345.282188][T17044] ? vprintk_func+0x81/0x17e [ 3345.286783][T17044] ? hwsim_register_received_nl+0x400/0x400 [ 3345.292665][T17044] hwsim_new_radio_nl+0x905/0xf60 [ 3345.297675][T17044] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3345.303131][T17044] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3345.309016][T17044] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3345.314731][T17044] genl_rcv_msg+0x627/0xdf0 [ 3345.319220][T17044] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3345.325527][T17044] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3345.330794][T17044] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3345.336256][T17044] netlink_rcv_skb+0x15a/0x410 [ 3345.341028][T17044] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3345.347356][T17044] ? netlink_ack+0xa80/0xa80 [ 3345.351944][T17044] genl_rcv+0x24/0x40 [ 3345.355910][T17044] netlink_unicast+0x537/0x740 [ 3345.360663][T17044] ? netlink_attachskb+0x810/0x810 [ 3345.365755][T17044] ? _copy_from_iter_full+0x25c/0x870 [ 3345.371111][T17044] ? __phys_addr_symbol+0x2c/0x70 [ 3345.376118][T17044] ? __check_object_size+0x171/0x437 [ 3345.381400][T17044] netlink_sendmsg+0x882/0xe10 [ 3345.386149][T17044] ? aa_af_perm+0x260/0x260 [ 3345.390636][T17044] ? netlink_unicast+0x740/0x740 [ 3345.395556][T17044] ? netlink_unicast+0x740/0x740 [ 3345.400473][T17044] sock_sendmsg+0xcf/0x120 [ 3345.404885][T17044] ____sys_sendmsg+0x6b9/0x7d0 [ 3345.409633][T17044] ? kernel_sendmsg+0x50/0x50 [ 3345.414295][T17044] ? __fget_files+0x307/0x4f0 [ 3345.418959][T17044] ___sys_sendmsg+0x100/0x170 [ 3345.423622][T17044] ? sendmsg_copy_msghdr+0x70/0x70 [ 3345.428722][T17044] ? __fget_files+0x329/0x4f0 [ 3345.433383][T17044] ? ksys_dup3+0x3c0/0x3c0 [ 3345.437776][T17044] ? lock_acquire+0x197/0x420 [ 3345.442444][T17044] ? __might_fault+0xef/0x1d0 [ 3345.447137][T17044] ? __fget_light+0x208/0x270 [ 3345.451803][T17044] __sys_sendmsg+0xec/0x1b0 [ 3345.456290][T17044] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3345.461295][T17044] ? __x64_sys_futex+0x380/0x4f0 [ 3345.466217][T17044] ? trace_hardirqs_off_caller+0x55/0x230 [ 3345.471917][T17044] ? do_syscall_64+0x21/0x7d0 [ 3345.476597][T17044] do_syscall_64+0xf6/0x7d0 [ 3345.481108][T17044] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3345.486986][T17044] RIP: 0033:0x45c849 [ 3345.490870][T17044] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3345.510454][T17044] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3345.518857][T17044] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3345.526810][T17044] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3345.534776][T17044] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3345.542743][T17044] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3345.550704][T17044] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3345.572735][T17036] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3345.572735][T17036] !' [ 3345.595944][T17036] CPU: 1 PID: 17036 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3345.604659][T17036] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3345.614798][T17036] Call Trace: [ 3345.618116][T17036] dump_stack+0x188/0x20d [ 3345.622470][T17036] sysfs_warn_dup.cold+0x1c/0x2d [ 3345.627439][T17036] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3345.633507][T17036] sysfs_create_link+0x61/0xc0 [ 3345.638257][T17036] device_add+0x71c/0x1bc0 [ 3345.642673][T17036] ? uevent_show+0x360/0x360 [ 3345.647258][T17036] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3345.653246][T17036] wiphy_register+0x1c46/0x2720 [ 3345.658106][T17036] ? wiphy_unregister+0xf90/0xf90 [ 3345.663132][T17036] ? __kmalloc+0x629/0x7a0 [ 3345.667556][T17036] ? ieee80211_register_hw+0xc0c/0x36a0 [ 3345.673103][T17036] ieee80211_register_hw+0x13d4/0x36a0 [ 3345.678552][T17036] ? __debug_object_init+0x4a1/0xe20 [ 3345.683852][T17036] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3345.689317][T17036] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3345.694853][T17036] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3345.700823][T17036] ? memset+0x20/0x40 [ 3345.704795][T17036] ? __hrtimer_init+0x134/0x260 [ 3345.709629][T17036] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3345.715367][T17036] ? hwsim_register_received_nl+0x400/0x400 [ 3345.721269][T17036] hwsim_new_radio_nl+0x905/0xf60 [ 3345.726285][T17036] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3345.732162][T17036] ? cap_capable+0x1eb/0x250 [ 3345.736735][T17036] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3345.743052][T17036] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3345.749372][T17036] genl_rcv_msg+0x627/0xdf0 [ 3345.753905][T17036] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3345.760236][T17036] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3345.765526][T17036] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3345.770968][T17036] netlink_rcv_skb+0x15a/0x410 [ 3345.775715][T17036] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3345.782036][T17036] ? netlink_ack+0xa80/0xa80 [ 3345.786624][T17036] genl_rcv+0x24/0x40 [ 3345.790586][T17036] netlink_unicast+0x537/0x740 [ 3345.795332][T17036] ? netlink_attachskb+0x810/0x810 [ 3345.800428][T17036] ? _copy_from_iter_full+0x25c/0x870 [ 3345.805791][T17036] ? __phys_addr_symbol+0x2c/0x70 [ 3345.810794][T17036] ? __check_object_size+0x171/0x437 [ 3345.816078][T17036] netlink_sendmsg+0x882/0xe10 [ 3345.820841][T17036] ? aa_af_perm+0x260/0x260 [ 3345.825365][T17036] ? netlink_unicast+0x740/0x740 [ 3345.830300][T17036] ? netlink_unicast+0x740/0x740 [ 3345.835218][T17036] sock_sendmsg+0xcf/0x120 [ 3345.839631][T17036] ____sys_sendmsg+0x6b9/0x7d0 [ 3345.844400][T17036] ? kernel_sendmsg+0x50/0x50 [ 3345.849073][T17036] ? __fget_files+0x307/0x4f0 [ 3345.853823][T17036] ___sys_sendmsg+0x100/0x170 [ 3345.858483][T17036] ? sendmsg_copy_msghdr+0x70/0x70 [ 3345.863596][T17036] ? __fget_files+0x329/0x4f0 [ 3345.868266][T17036] ? ksys_dup3+0x3c0/0x3c0 [ 3345.872664][T17036] ? lock_acquire+0x197/0x420 [ 3345.877320][T17036] ? __might_fault+0xef/0x1d0 [ 3345.881999][T17036] ? __fget_light+0x208/0x270 [ 3345.886715][T17036] __sys_sendmsg+0xec/0x1b0 [ 3345.891200][T17036] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3345.896239][T17036] ? __x64_sys_futex+0x380/0x4f0 [ 3345.901186][T17036] ? trace_hardirqs_off_caller+0x55/0x230 [ 3345.906903][T17036] ? do_syscall_64+0x21/0x7d0 [ 3345.911584][T17036] do_syscall_64+0xf6/0x7d0 [ 3345.916091][T17036] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3345.922056][T17036] RIP: 0033:0x45c849 [ 3345.925964][T17036] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3345.945709][T17036] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3345.954106][T17036] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3345.962068][T17036] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3345.970034][T17036] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3345.977986][T17036] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3345.985994][T17036] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:48:27 executing program 1: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000000100), 0x12) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024006c05d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:48:27 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0f48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:48:27 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100071400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:48:27 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60586511400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3360.016658][T17065] __nla_validate_parse: 2 callbacks suppressed [ 3360.016731][T17065] netlink: 18442 bytes leftover after parsing attributes in process `syz-executor.3'. [ 3360.145270][T17066] netlink: 186996 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3360.171925][T17066] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3360.171925][T17066] !' [ 3360.182305][T17066] CPU: 0 PID: 17066 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3360.190986][T17066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3360.201040][T17066] Call Trace: [ 3360.204318][T17066] dump_stack+0x188/0x20d [ 3360.208766][T17066] sysfs_warn_dup.cold+0x1c/0x2d [ 3360.213696][T17066] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3360.219766][T17066] sysfs_create_link+0x61/0xc0 [ 3360.224525][T17066] device_add+0x71c/0x1bc0 [ 3360.228925][T17066] ? uevent_show+0x360/0x360 [ 3360.233498][T17066] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3360.239461][T17066] wiphy_register+0x1c46/0x2720 [ 3360.244298][T17066] ? wiphy_unregister+0xf90/0xf90 [ 3360.249316][T17066] ? ieee80211_register_hw+0x1136/0x36a0 [ 3360.254959][T17066] ieee80211_register_hw+0x13d4/0x36a0 [ 3360.260400][T17066] ? __debug_object_init+0x4a1/0xe20 [ 3360.265685][T17066] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3360.271163][T17066] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3360.276701][T17066] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3360.282678][T17066] ? memset+0x20/0x40 [ 3360.286653][T17066] ? __hrtimer_init+0x134/0x260 [ 3360.291490][T17066] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3360.297247][T17066] ? hwsim_register_received_nl+0x400/0x400 [ 3360.303141][T17066] hwsim_new_radio_nl+0x905/0xf60 [ 3360.308261][T17066] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3360.314154][T17066] ? cap_capable+0x1eb/0x250 [ 3360.318743][T17066] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3360.325048][T17066] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3360.331408][T17066] genl_rcv_msg+0x627/0xdf0 [ 3360.335897][T17066] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3360.342217][T17066] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 3360.348007][T17066] netlink_rcv_skb+0x15a/0x410 [ 3360.352753][T17066] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3360.359086][T17066] ? netlink_ack+0xa80/0xa80 [ 3360.363680][T17066] genl_rcv+0x24/0x40 [ 3360.367647][T17066] netlink_unicast+0x537/0x740 [ 3360.372406][T17066] ? netlink_attachskb+0x810/0x810 [ 3360.377511][T17066] ? _copy_from_iter_full+0x25c/0x870 [ 3360.382875][T17066] ? __phys_addr_symbol+0x2c/0x70 [ 3360.387926][T17066] ? __check_object_size+0x171/0x437 [ 3360.393197][T17066] netlink_sendmsg+0x882/0xe10 [ 3360.397961][T17066] ? aa_af_perm+0x260/0x260 [ 3360.402446][T17066] ? netlink_unicast+0x740/0x740 [ 3360.407401][T17066] ? netlink_unicast+0x740/0x740 [ 3360.412331][T17066] sock_sendmsg+0xcf/0x120 [ 3360.416746][T17066] ____sys_sendmsg+0x6b9/0x7d0 [ 3360.421502][T17066] ? kernel_sendmsg+0x50/0x50 [ 3360.426158][T17066] ? mark_lock+0xbc/0x1220 [ 3360.430622][T17066] ___sys_sendmsg+0x100/0x170 [ 3360.435281][T17066] ? sendmsg_copy_msghdr+0x70/0x70 [ 3360.440380][T17066] ? __fget_files+0x329/0x4f0 [ 3360.445058][T17066] ? ksys_dup3+0x3c0/0x3c0 [ 3360.449451][T17066] ? lock_acquire+0x197/0x420 [ 3360.454106][T17066] ? __might_fault+0xef/0x1d0 [ 3360.458812][T17066] ? __fget_light+0x208/0x270 [ 3360.463474][T17066] __sys_sendmsg+0xec/0x1b0 [ 3360.467961][T17066] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3360.472977][T17066] ? __x64_sys_futex+0x380/0x4f0 [ 3360.477909][T17066] ? trace_hardirqs_off_caller+0x55/0x230 [ 3360.483619][T17066] ? do_syscall_64+0x21/0x7d0 [ 3360.488290][T17066] do_syscall_64+0xf6/0x7d0 [ 3360.492790][T17066] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3360.498661][T17066] RIP: 0033:0x45c849 [ 3360.502541][T17066] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3360.522126][T17066] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3360.530539][T17066] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3360.538491][T17066] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3360.546440][T17066] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3360.554391][T17066] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3360.562342][T17066] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3360.588918][T17067] netlink: 18411 bytes leftover after parsing attributes in process `syz-executor.0'. [ 3360.615966][T17067] sysfs: cannot create duplicate filename '/class/ieee80211/ [ 3360.615966][T17067] !' [ 3360.637405][T17067] CPU: 0 PID: 17067 Comm: syz-executor.0 Not tainted 5.6.0-rc5-syzkaller #0 [ 3360.646129][T17067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3360.656191][T17067] Call Trace: [ 3360.659492][T17067] dump_stack+0x188/0x20d [ 3360.663837][T17067] sysfs_warn_dup.cold+0x1c/0x2d [ 3360.668787][T17067] sysfs_do_create_link_sd.isra.0+0x119/0x130 [ 3360.674874][T17067] sysfs_create_link+0x61/0xc0 [ 3360.679650][T17067] device_add+0x71c/0x1bc0 [ 3360.684084][T17067] ? uevent_show+0x360/0x360 [ 3360.688685][T17067] ? ieee80211_set_bitrate_flags+0x20b/0x5c0 [ 3360.694667][T17067] wiphy_register+0x1c46/0x2720 [ 3360.699522][T17067] ? wiphy_unregister+0xf90/0xf90 [ 3360.704579][T17067] ? retint_kernel+0x2b/0x2b [ 3360.709154][T17067] ? ieee80211_register_hw+0x1375/0x36a0 [ 3360.714768][T17067] ieee80211_register_hw+0x13d4/0x36a0 [ 3360.720209][T17067] ? __debug_object_init+0x4a1/0xe20 [ 3360.725478][T17067] ? ieee80211_ifa_changed+0xdc0/0xdc0 [ 3360.730918][T17067] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 3360.736443][T17067] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 3360.742412][T17067] ? memset+0x20/0x40 [ 3360.746402][T17067] ? __hrtimer_init+0x134/0x260 [ 3360.751247][T17067] mac80211_hwsim_new_radio+0x222f/0x4490 [ 3360.757114][T17067] ? hwsim_register_received_nl+0x400/0x400 [ 3360.762991][T17067] ? __nla_validate_parse+0x163/0x1cd0 [ 3360.768439][T17067] ? __sanitizer_cov_trace_pc+0x2e/0x50 [ 3360.773974][T17067] hwsim_new_radio_nl+0x905/0xf60 [ 3360.779023][T17067] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3360.784914][T17067] ? safesetid_security_capable+0x1c/0xb0 [ 3360.790627][T17067] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3360.796939][T17067] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3360.803276][T17067] genl_rcv_msg+0x627/0xdf0 [ 3360.807776][T17067] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3360.814109][T17067] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3360.819394][T17067] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3360.824864][T17067] netlink_rcv_skb+0x15a/0x410 [ 3360.829617][T17067] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3360.835935][T17067] ? netlink_ack+0xa80/0xa80 [ 3360.840522][T17067] genl_rcv+0x24/0x40 [ 3360.844487][T17067] netlink_unicast+0x537/0x740 [ 3360.849253][T17067] ? netlink_attachskb+0x810/0x810 [ 3360.854355][T17067] ? _copy_from_iter_full+0x25c/0x870 [ 3360.859727][T17067] ? __phys_addr_symbol+0x2c/0x70 [ 3360.864759][T17067] ? __check_object_size+0x171/0x437 [ 3360.870034][T17067] netlink_sendmsg+0x882/0xe10 [ 3360.874792][T17067] ? aa_af_perm+0x260/0x260 [ 3360.879284][T17067] ? netlink_unicast+0x740/0x740 [ 3360.884212][T17067] ? netlink_unicast+0x740/0x740 [ 3360.889132][T17067] sock_sendmsg+0xcf/0x120 [ 3360.893535][T17067] ____sys_sendmsg+0x6b9/0x7d0 [ 3360.898283][T17067] ? kernel_sendmsg+0x50/0x50 [ 3360.902959][T17067] ? mark_lock+0xbc/0x1220 [ 3360.907364][T17067] ___sys_sendmsg+0x100/0x170 [ 3360.912041][T17067] ? sendmsg_copy_msghdr+0x70/0x70 [ 3360.917149][T17067] ? __fget_files+0x329/0x4f0 [ 3360.921825][T17067] ? ksys_dup3+0x3c0/0x3c0 [ 3360.926230][T17067] ? lock_acquire+0x197/0x420 [ 3360.930889][T17067] ? __might_fault+0xef/0x1d0 [ 3360.935557][T17067] ? __fget_light+0x208/0x270 [ 3360.940223][T17067] __sys_sendmsg+0xec/0x1b0 [ 3360.944711][T17067] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3360.949732][T17067] ? __x64_sys_futex+0x380/0x4f0 [ 3360.954689][T17067] ? trace_hardirqs_off_caller+0x55/0x230 [ 3360.960401][T17067] ? do_syscall_64+0x21/0x7d0 [ 3360.965097][T17067] do_syscall_64+0xf6/0x7d0 [ 3360.969600][T17067] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3360.975498][T17067] RIP: 0033:0x45c849 [ 3360.979384][T17067] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3360.998992][T17067] RSP: 002b:00007fda9c359c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3361.007424][T17067] RAX: ffffffffffffffda RBX: 00007fda9c35a6d4 RCX: 000000000045c849 [ 3361.015398][T17067] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3361.023367][T17067] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3361.031333][T17067] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3361.039302][T17067] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c 23:48:30 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0e48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:48:30 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="2e48000024000705d21b80788c63940d0424fc60100018400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:48:30 executing program 4: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="0b48000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:48:30 executing program 5: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="e03f030024000705d21b80788c63940d0424fc60008111400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) 23:48:30 executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) openat$cgroup_procs(0xffffffffffffffff, &(0x7f0000000280)='cgroup.procs\x00', 0x2, 0x0) perf_event_open(&(0x7f0000000280)={0x0, 0x70, 0x0, 0x7, 0x0, 0x4, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x4, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x6, 0x0, 0x0, 0x8, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) write$cgroup_pid(0xffffffffffffffff, &(0x7f0000001280), 0x12) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0xfffffffffffffed3, &(0x7f0000000080)=[{&(0x7f0000000040)="1048000024000705d21b80788c63940d0424fc60100011400a2f0000051982c1375b3e37096b088000f01700d1bd", 0x33fe0}], 0x1}, 0x0) [ 3363.655066][T17080] netlink: 179916 bytes leftover after parsing attributes in process `syz-executor.5'. [ 3363.666587][T17080] ------------[ cut here ]------------ [ 3363.673427][T17080] precision 33020 too large [ 3363.673920][T17080] WARNING: CPU: 1 PID: 17080 at lib/vsprintf.c:2471 set_precision+0x13a/0x170 [ 3363.687244][T17080] Kernel panic - not syncing: panic_on_warn set ... [ 3363.693831][T17080] CPU: 1 PID: 17080 Comm: syz-executor.5 Not tainted 5.6.0-rc5-syzkaller #0 [ 3363.702494][T17080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 3363.712548][T17080] Call Trace: [ 3363.715827][T17080] dump_stack+0x188/0x20d [ 3363.720164][T17080] ? set_precision+0x40/0x170 [ 3363.725497][T17080] panic+0x2e3/0x75c [ 3363.729414][T17080] ? add_taint.cold+0x16/0x16 [ 3363.734137][T17080] ? __probe_kernel_read+0x188/0x1d0 [ 3363.739415][T17080] ? __warn.cold+0x14/0x35 [ 3363.743873][T17080] ? set_precision+0x13a/0x170 [ 3363.748630][T17080] __warn.cold+0x2f/0x35 [ 3363.752863][T17080] ? set_precision+0x13a/0x170 [ 3363.757611][T17080] report_bug+0x27b/0x2f0 [ 3363.761939][T17080] do_error_trap+0x12b/0x220 [ 3363.766525][T17080] ? set_precision+0x13a/0x170 [ 3363.771336][T17080] do_invalid_op+0x32/0x40 [ 3363.775745][T17080] ? set_precision+0x13a/0x170 [ 3363.780508][T17080] invalid_op+0x23/0x30 [ 3363.784667][T17080] RIP: 0010:set_precision+0x13a/0x170 [ 3363.790033][T17080] Code: b6 df 88 5d 07 5b 5d 41 5c 41 5d e9 30 5e b8 f9 e8 2b 5e b8 f9 89 de 48 c7 c7 40 71 da 88 c6 05 39 aa a7 02 01 e8 8e 6e 8a f9 <0f> 0b e9 67 ff ff ff be 08 00 00 00 48 89 ef e8 c2 28 f5 f9 e9 14 [ 3363.809642][T17080] RSP: 0018:ffffc900172572d8 EFLAGS: 00010286 [ 3363.815701][T17080] RAX: 0000000000000000 RBX: 00000000000080fc RCX: 0000000000000000 [ 3363.823657][T17080] RDX: 00000000000123c5 RSI: ffffffff815bfe61 RDI: fffff52002e4ae4d [ 3363.831618][T17080] RBP: ffffc90017257368 R08: ffff888064d62400 R09: fffffbfff180f77b [ 3363.839583][T17080] R10: fffffbfff180f77a R11: ffffffff8c07bbd7 R12: 0000000000000000 [ 3363.847601][T17080] R13: ffffc9001725736f R14: 0000000000000018 R15: ffffc90017257400 [ 3363.855573][T17080] ? vprintk_func+0x81/0x17e [ 3363.860160][T17080] ? set_precision+0x13a/0x170 [ 3363.864918][T17080] vsnprintf+0x894/0x14f0 [ 3363.869230][T17080] ? pointer+0x680/0x680 [ 3363.873456][T17080] ? __irq_work_queue_local+0x11d/0x180 [ 3363.878983][T17080] kvasprintf+0x9c/0x150 [ 3363.883218][T17080] ? bust_spinlocks+0xe0/0xe0 [ 3363.887887][T17080] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3363.893326][T17080] ? lockdep_hardirqs_on+0x417/0x5d0 [ 3363.898590][T17080] kasprintf+0xbb/0xf0 [ 3363.902655][T17080] ? kvasprintf_const+0x190/0x190 [ 3363.907669][T17080] ? retint_kernel+0x2b/0x2b [ 3363.912246][T17080] ? hwsim_new_radio_nl+0x9a3/0xf60 [ 3363.917431][T17080] hwsim_new_radio_nl+0x8db/0xf60 [ 3363.922453][T17080] ? mac80211_hwsim_new_radio+0x4490/0x4490 [ 3363.928333][T17080] ? cap_capable+0x1eb/0x250 [ 3363.932907][T17080] ? genl_family_rcv_msg_attrs_parse+0x1bd/0x320 [ 3363.939210][T17080] ? genl_family_rcv_msg_attrs_parse+0x1c7/0x320 [ 3363.945533][T17080] genl_rcv_msg+0x627/0xdf0 [ 3363.950038][T17080] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3363.956357][T17080] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 3363.961810][T17080] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 3363.967540][T17080] ? netlink_rcv_skb+0x2ce/0x410 [ 3363.972472][T17080] netlink_rcv_skb+0x15a/0x410 [ 3363.977228][T17080] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 3363.983562][T17080] ? netlink_ack+0xa80/0xa80 [ 3363.988150][T17080] genl_rcv+0x24/0x40 [ 3363.992118][T17080] netlink_unicast+0x537/0x740 [ 3363.996880][T17080] ? netlink_attachskb+0x810/0x810 [ 3364.001985][T17080] ? _copy_from_iter_full+0x25c/0x870 [ 3364.007348][T17080] ? __phys_addr_symbol+0x2c/0x70 [ 3364.012354][T17080] ? __check_object_size+0x171/0x437 [ 3364.017727][T17080] netlink_sendmsg+0x882/0xe10 [ 3364.022491][T17080] ? aa_af_perm+0x260/0x260 [ 3364.026989][T17080] ? netlink_unicast+0x740/0x740 [ 3364.031911][T17080] ? netlink_unicast+0x740/0x740 [ 3364.036828][T17080] sock_sendmsg+0xcf/0x120 [ 3364.041238][T17080] ____sys_sendmsg+0x6b9/0x7d0 [ 3364.045995][T17080] ? kernel_sendmsg+0x50/0x50 [ 3364.050664][T17080] ___sys_sendmsg+0x100/0x170 [ 3364.055322][T17080] ? sendmsg_copy_msghdr+0x70/0x70 [ 3364.060437][T17080] ? __fget_files+0x329/0x4f0 [ 3364.065111][T17080] ? ksys_dup3+0x3c0/0x3c0 [ 3364.069514][T17080] ? lock_acquire+0x197/0x420 [ 3364.074184][T17080] ? __might_fault+0xef/0x1d0 [ 3364.078847][T17080] ? __fget_light+0x208/0x270 [ 3364.083519][T17080] __sys_sendmsg+0xec/0x1b0 [ 3364.088005][T17080] ? __sys_sendmsg_sock+0xb0/0xb0 [ 3364.093035][T17080] ? do_syscall_64+0x4f/0x7d0 [ 3364.097699][T17080] do_syscall_64+0xf6/0x7d0 [ 3364.102204][T17080] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 3364.108104][T17080] RIP: 0033:0x45c849 [ 3364.111980][T17080] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 3364.131570][T17080] RSP: 002b:00007f17ede6bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3364.139982][T17080] RAX: ffffffffffffffda RBX: 00007f17ede6c6d4 RCX: 000000000045c849 [ 3364.147945][T17080] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 3364.156027][T17080] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 3364.164002][T17080] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 3364.171966][T17080] R13: 00000000000009f1 R14: 00000000004cca8d R15: 000000000076bf0c [ 3364.181774][T17080] Kernel Offset: disabled [ 3364.186204][T17080] Rebooting in 86400 seconds..