================================ WARNING: inconsistent lock state 4.19.104-syzkaller #0 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. ksoftirqd/0/9 [HC0[0]:SC1[1]:HE1:SE0] takes: 000000005938012d (rxrpc_conn_id_lock){+.?.}, at: spin_lock include/linux/spinlock.h:329 [inline] 000000005938012d (rxrpc_conn_id_lock){+.?.}, at: rxrpc_put_client_connection_id.part.0+0x19/0x70 net/rxrpc/conn_client.c:143 {SOFTIRQ-ON-W} state was registered at: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] rxrpc_get_client_connection_id net/rxrpc/conn_client.c:114 [inline] rxrpc_alloc_client_connection net/rxrpc/conn_client.c:198 [inline] rxrpc_get_client_conn net/rxrpc/conn_client.c:345 [inline] rxrpc_connect_call+0x948/0x4920 net/rxrpc/conn_client.c:702 rxrpc_new_client_call+0x8e7/0x1880 net/rxrpc/call_object.c:291 rxrpc_new_client_call_for_sendmsg net/rxrpc/sendmsg.c:596 [inline] rxrpc_do_sendmsg+0xfc3/0x1ca3 net/rxrpc/sendmsg.c:652 rxrpc_sendmsg+0x4a0/0x5b0 net/rxrpc/af_rxrpc.c:593 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x3e2/0x920 net/socket.c:2115 __sys_sendmmsg+0x1bf/0x4e0 net/socket.c:2210 __do_sys_sendmmsg net/socket.c:2239 [inline] __se_sys_sendmmsg net/socket.c:2236 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2236 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe irq event stamp: 30275820 hardirqs last enabled at (30275820): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (30275820): [] _raw_spin_unlock_irqrestore+0x6b/0xe0 kernel/locking/spinlock.c:184 netlink: 'syz-executor.4': attribute type 10 has an invalid length. hardirqs last disabled at (30275819): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (30275819): [] _raw_spin_lock_irqsave+0x6f/0xcd kernel/locking/spinlock.c:152 sysfs: cannot create duplicate filename '/class/ieee80211/!' softirqs last enabled at (30275768): [] __do_softirq+0x633/0x921 kernel/softirq.c:318 softirqs last disabled at (30275773): [] run_ksoftirqd kernel/softirq.c:653 [inline] softirqs last disabled at (30275773): [] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:645 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- CPU: 1 PID: 19337 Comm: syz-executor.4 Not tainted 4.19.104-syzkaller #0 lock(rxrpc_conn_id_lock); Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 lock(rxrpc_conn_id_lock); Call Trace: *** DEADLOCK *** __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 1 lock held by ksoftirqd/0/9: sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 #0: 00000000f56b5259 (rcu_callback){....}, at: __rcu_reclaim kernel/rcu/rcu.h:226 [inline] #0: 00000000f56b5259 (rcu_callback){....}, at: rcu_do_batch kernel/rcu/tree.c:2584 [inline] #0: 00000000f56b5259 (rcu_callback){....}, at: invoke_rcu_callbacks kernel/rcu/tree.c:2897 [inline] #0: 00000000f56b5259 (rcu_callback){....}, at: __rcu_process_callbacks kernel/rcu/tree.c:2864 [inline] #0: 00000000f56b5259 (rcu_callback){....}, at: rcu_process_callbacks+0xc79/0x1a30 kernel/rcu/tree.c:2881 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 stack backtrace: sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1d83/0x3df0 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5eb/0x893 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6db/0xd30 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:627 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c6b9 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 RSP: 002b:00007fa430870c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fa4308716d4 RCX: 000000000045c6b9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009c9 R14: 00000000004cc6c3 R15: 000000000076bf2c CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 print_usage_bug.cold+0x330/0x42a kernel/locking/lockdep.c:2540 valid_state kernel/locking/lockdep.c:2553 [inline] mark_lock_irq kernel/locking/lockdep.c:2747 [inline] mark_lock+0xd1b/0x1370 kernel/locking/lockdep.c:3127 mark_irqflags kernel/locking/lockdep.c:3005 [inline] __lock_acquire+0xc62/0x49c0 kernel/locking/lockdep.c:3368 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] rxrpc_put_client_connection_id.part.0+0x19/0x70 net/rxrpc/conn_client.c:143 rxrpc_put_client_connection_id include/linux/spinlock.h:370 [inline] rxrpc_put_one_client_conn net/rxrpc/conn_client.c:956 [inline] rxrpc_put_client_conn+0x6c6/0xc20 net/rxrpc/conn_client.c:1002 rxrpc_put_connection net/rxrpc/ar-internal.h:951 [inline] rxrpc_rcu_destroy_call+0xbd/0x200 net/rxrpc/call_object.c:657 __rcu_reclaim kernel/rcu/rcu.h:236 [inline] rcu_do_batch kernel/rcu/tree.c:2584 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2897 [inline] __rcu_process_callbacks kernel/rcu/tree.c:2864 [inline] rcu_process_callbacks+0xba0/0x1a30 kernel/rcu/tree.c:2881 __do_softirq+0x25c/0x921 kernel/softirq.c:292 run_ksoftirqd kernel/softirq.c:653 [inline] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:645 smpboot_thread_fn+0x6a3/0xa30 kernel/smpboot.c:164 kthread+0x354/0x420 kernel/kthread.c:246 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 netlink: 'syz-executor.2': attribute type 10 has an invalid length. sysfs: cannot create duplicate filename '/class/ieee80211/!' CPU: 0 PID: 19496 Comm: syz-executor.2 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1d83/0x3df0 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5eb/0x893 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6db/0xd30 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:627 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c6b9 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 RSP: 002b:00007f5828e16c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5828e176d4 RCX: 000000000045c6b9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009c9 R14: 00000000004cc6c3 R15: 000000000076bf2c netlink: 'syz-executor.2': attribute type 10 has an invalid length. sysfs: cannot create duplicate filename '/class/ieee80211/!' CPU: 0 PID: 19743 Comm: syz-executor.2 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1d83/0x3df0 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5eb/0x893 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6db/0xd30 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:627 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c6b9 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 RSP: 002b:00007f5828df5c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5828df66d4 RCX: 000000000045c6b9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009c9 R14: 00000000004cc6c3 R15: 000000000076bfcc netlink: 'syz-executor.2': attribute type 10 has an invalid length. sysfs: cannot create duplicate filename '/class/ieee80211/!' CPU: 1 PID: 19861 Comm: syz-executor.2 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1d83/0x3df0 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5eb/0x893 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6db/0xd30 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:627 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c6b9 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 RSP: 002b:00007f5828e16c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5828e176d4 RCX: 000000000045c6b9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009c9 R14: 00000000004cc6c3 R15: 000000000076bf2c netlink: 'syz-executor.2': attribute type 10 has an invalid length. sysfs: cannot create duplicate filename '/class/ieee80211/!' CPU: 0 PID: 20043 Comm: syz-executor.2 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1d83/0x3df0 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5eb/0x893 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6db/0xd30 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:627 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c6b9 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 RSP: 002b:00007f5828df5c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5828df66d4 RCX: 000000000045c6b9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009c9 R14: 00000000004cc6c3 R15: 000000000076bfcc netlink: 'syz-executor.4': attribute type 10 has an invalid length. netlink: 'syz-executor.2': attribute type 10 has an invalid length. sysfs: cannot create duplicate filename '/class/ieee80211/!' CPU: 0 PID: 20102 Comm: syz-executor.2 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1d83/0x3df0 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5eb/0x893 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6db/0xd30 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:627 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c6b9 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 RSP: 002b:00007f5828e16c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5828e176d4 RCX: 000000000045c6b9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009c9 R14: 00000000004cc6c3 R15: 000000000076bf2c sysfs: cannot create duplicate filename '/class/ieee80211/!' CPU: 1 PID: 20403 Comm: syz-executor.2 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1d83/0x3df0 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5eb/0x893 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6db/0xd30 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:627 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c6b9 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 RSP: 002b:00007f5828dd4c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5828dd56d4 RCX: 000000000045c6b9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076c060 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009c9 R14: 00000000004cc6c3 R15: 000000000076c06c validate_nla: 1 callbacks suppressed netlink: 'syz-executor.4': attribute type 10 has an invalid length. netlink: 'syz-executor.2': attribute type 10 has an invalid length. sysfs: cannot create duplicate filename '/class/ieee80211/!' CPU: 1 PID: 20547 Comm: syz-executor.2 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1d83/0x3df0 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5eb/0x893 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6db/0xd30 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:627 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c6b9 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 RSP: 002b:00007f5828e16c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5828e176d4 RCX: 000000000045c6b9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009c9 R14: 00000000004cc6c3 R15: 000000000076bf2c netlink: 'syz-executor.2': attribute type 10 has an invalid length. sysfs: cannot create duplicate filename '/class/ieee80211/!' CPU: 0 PID: 20824 Comm: syz-executor.2 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1d83/0x3df0 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5eb/0x893 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6db/0xd30 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:627 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c6b9 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 RSP: 002b:00007f5828df5c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5828df66d4 RCX: 000000000045c6b9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009c9 R14: 00000000004cc6c3 R15: 000000000076bfcc netlink: 'syz-executor.2': attribute type 10 has an invalid length. sysfs: cannot create duplicate filename '/class/ieee80211/!' CPU: 0 PID: 20898 Comm: syz-executor.2 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1d83/0x3df0 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5eb/0x893 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6db/0xd30 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:627 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c6b9 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 RSP: 002b:00007f5828e16c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5828e176d4 RCX: 000000000045c6b9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009c9 R14: 00000000004cc6c3 R15: 000000000076bf2c netlink: 'syz-executor.2': attribute type 10 has an invalid length. sysfs: cannot create duplicate filename '/class/ieee80211/!' CPU: 1 PID: 21174 Comm: syz-executor.2 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1d83/0x3df0 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5eb/0x893 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6db/0xd30 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:627 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c6b9 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 RSP: 002b:00007f5828e16c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5828e176d4 RCX: 000000000045c6b9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009c9 R14: 00000000004cc6c3 R15: 000000000076bf2c netlink: 'syz-executor.2': attribute type 10 has an invalid length. sysfs: cannot create duplicate filename '/class/ieee80211/!' CPU: 0 PID: 21315 Comm: syz-executor.2 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1d83/0x3df0 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5eb/0x893 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6db/0xd30 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:627 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c6b9 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 RSP: 002b:00007f5828dd4c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5828dd56d4 RCX: 000000000045c6b9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076c060 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009c9 R14: 00000000004cc6c3 R15: 000000000076c06c netlink: 'syz-executor.2': attribute type 10 has an invalid length. sysfs: cannot create duplicate filename '/class/ieee80211/!' CPU: 0 PID: 21374 Comm: syz-executor.2 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1d83/0x3df0 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5eb/0x893 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6db/0xd30 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:627 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c6b9 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 RSP: 002b:00007f5828e16c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5828e176d4 RCX: 000000000045c6b9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009c9 R14: 00000000004cc6c3 R15: 000000000076bf2c netlink: 'syz-executor.2': attribute type 10 has an invalid length. sysfs: cannot create duplicate filename '/class/ieee80211/!' CPU: 0 PID: 21500 Comm: syz-executor.2 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1d83/0x3df0 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5eb/0x893 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6db/0xd30 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:627 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c6b9 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 RSP: 002b:00007f5828df5c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5828df66d4 RCX: 000000000045c6b9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009c9 R14: 00000000004cc6c3 R15: 000000000076bfcc netlink: 'syz-executor.2': attribute type 10 has an invalid length. sysfs: cannot create duplicate filename '/class/ieee80211/!' CPU: 0 PID: 21629 Comm: syz-executor.2 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1d83/0x3df0 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5eb/0x893 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6db/0xd30 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:627 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c6b9 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 RSP: 002b:00007f5828e16c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5828e176d4 RCX: 000000000045c6b9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009c9 R14: 00000000004cc6c3 R15: 000000000076bf2c netlink: 'syz-executor.2': attribute type 10 has an invalid length. sysfs: cannot create duplicate filename '/class/ieee80211/!' CPU: 1 PID: 21745 Comm: syz-executor.2 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1d83/0x3df0 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5eb/0x893 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6db/0xd30 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:627 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c6b9 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 RSP: 002b:00007f5828df5c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5828df66d4 RCX: 000000000045c6b9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009c9 R14: 00000000004cc6c3 R15: 000000000076bfcc netlink: 'syz-executor.2': attribute type 10 has an invalid length. sysfs: cannot create duplicate filename '/class/ieee80211/!' CPU: 0 PID: 21840 Comm: syz-executor.2 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092 mac80211_hwsim_new_radio+0x1d83/0x3df0 drivers/net/wireless/mac80211_hwsim.c:2896 hwsim_new_radio_nl+0x5eb/0x893 drivers/net/wireless/mac80211_hwsim.c:3374 genl_family_rcv_msg+0x6db/0xd30 net/netlink/genetlink.c:602 genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:627 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 genl_rcv+0x29/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c6b9 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 RSP: 002b:00007f5828e16c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5828e176d4 RCX: 000000000045c6b9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000009c9 R14: 00000000004cc6c3 R15: 000000000076bf2c netlink: 'syz-executor.2': attribute type 10 has an invalid length. sysfs: cannot create duplicate filename '/class/ieee80211/!' CPU: 1 PID: 21943 Comm: syz-executor.2 Not tainted 4.19.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 sysfs_warn_dup.cold+0x1c/0x31 fs/sysfs/dir.c:30 sysfs_do_create_link_sd.isra.0+0x118/0x130 fs/sysfs/symlink.c:50 sysfs_do_create_link fs/sysfs/symlink.c:79 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91 device_add_class_symlinks drivers/base/core.c:1783 [inline] device_add+0x7ce/0x1760 drivers/base/core.c:1985 wiphy_register+0x16fa/0x21d0 net/wireless/core.c:832 ieee80211_register_hw+0x156e/0x3800 net/mac80211/main.c:1092