sysfs: cannot create duplicate filename '/class/ieee80211/)5æ.‡m•ëõ¨¨–¶]”uË!"'
CPU: 0 PID: 5046 Comm: syz-executor.1 Not tainted 6.0.0-rc1-next-20220819-syzkaller #0
BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1521
in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 5046, name: syz-executor.1
preempt_count: 0, expected: 0
RCU nest depth: 0, expected: 0
3 locks held by syz-executor.1/5046:
 #0: ffffffff8d84a4b0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
 #1: ffffffff8d84a568 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
 #1: ffffffff8d84a568 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x3e0/0x580 net/netlink/genetlink.c:790
 #2: ffffffff8d7b1e28 (rtnl_mutex){+.+.}-{3:3}, at: wiphy_register+0x1ee0/0x2a40 net/wireless/core.c:927
irq event stamp: 506
hardirqs last  enabled at (505): [<ffffffff81533e15>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1352 [inline]
hardirqs last  enabled at (505): [<ffffffff81533e15>] finish_lock_switch kernel/sched/core.c:4956 [inline]
hardirqs last  enabled at (505): [<ffffffff81533e15>] finish_task_switch.isra.0+0x2b5/0xc70 kernel/sched/core.c:5074
hardirqs last disabled at (506): [<ffffffff894c1738>] dump_stack_lvl+0x2e/0x134 lib/dump_stack.c:139
softirqs last  enabled at (100): [<ffffffff856b2e49>] spin_unlock_bh include/linux/spinlock.h:394 [inline]
softirqs last  enabled at (100): [<ffffffff856b2e49>] mac80211_hwsim_new_radio+0x149/0x4dd0 drivers/net/wireless/mac80211_hwsim.c:3796
softirqs last disabled at (98): [<ffffffff856b2e1d>] spin_lock_bh include/linux/spinlock.h:354 [inline]
softirqs last disabled at (98): [<ffffffff856b2e1d>] mac80211_hwsim_new_radio+0x11d/0x4dd0 drivers/net/wireless/mac80211_hwsim.c:3794
CPU: 0 PID: 5046 Comm: syz-executor.1 Not tainted 6.0.0-rc1-next-20220819-syzkaller #0
syz-executor.1[5046] cmdline: /root/syz-executor.1 exec
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:122 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:140
 __might_resched.cold+0x222/0x26b kernel/sched/core.c:9896
 down_read_killable+0x75/0x490 kernel/locking/rwsem.c:1521
 mmap_read_lock_killable include/linux/mmap_lock.h:126 [inline]
 __access_remote_vm+0xac/0x6f0 mm/memory.c:5461
 get_mm_cmdline.part.0+0x217/0x620 fs/proc/base.c:299
 get_mm_cmdline fs/proc/base.c:367 [inline]
 get_task_cmdline_kernel+0x1d9/0x220 fs/proc/base.c:367
 dump_stack_print_cmdline.part.0+0x82/0x150 lib/dump_stack.c:61
 dump_stack_print_cmdline lib/dump_stack.c:89 [inline]
 dump_stack_print_info+0x185/0x190 lib/dump_stack.c:97
 __dump_stack lib/dump_stack.c:121 [inline]
 dump_stack_lvl+0xc1/0x134 lib/dump_stack.c:140
 sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30
 sysfs_do_create_link_sd+0x11e/0x140 fs/sysfs/symlink.c:51
 sysfs_do_create_link fs/sysfs/symlink.c:80 [inline]
 sysfs_create_link+0x5f/0xc0 fs/sysfs/symlink.c:92
 device_add_class_symlinks drivers/base/core.c:3259 [inline]
 device_add+0x700/0x1e90 drivers/base/core.c:3465
 wiphy_register+0x1ee8/0x2a40 net/wireless/core.c:928
 ieee80211_register_hw+0x22a3/0x3eb0 net/mac80211/main.c:1379
 mac80211_hwsim_new_radio+0x255f/0x4dd0 drivers/net/wireless/mac80211_hwsim.c:4129
 hwsim_new_radio_nl+0xa05/0x10f0 drivers/net/wireless/mac80211_hwsim.c:4724
 genl_family_rcv_msg_doit+0x228/0x320 net/netlink/genetlink.c:731
 genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]
 genl_rcv_msg+0x328/0x580 net/netlink/genetlink.c:792
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2501
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:803
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:734
 ____sys_sendmsg+0x6eb/0x810 net/socket.c:2482
 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536
 __sys_sendmsg+0xf3/0x1c0 net/socket.c:2565
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6c64089279
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6c65122168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f6c6419bf80 RCX: 00007f6c64089279
RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007f6c640e3189 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff965ed4ef R14: 00007f6c65122300 R15: 0000000000022000
 </TASK>
syz-executor.1[5046] cmdline: /root/syz-executor.1 exec
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:122 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:140
 sysfs_warn_dup.cold+0x1c/0x29 fs/sysfs/dir.c:30
 sysfs_do_create_link_sd+0x11e/0x140 fs/sysfs/symlink.c:51
 sysfs_do_create_link fs/sysfs/symlink.c:80 [inline]
 sysfs_create_link+0x5f/0xc0 fs/sysfs/symlink.c:92
 device_add_class_symlinks drivers/base/core.c:3259 [inline]
 device_add+0x700/0x1e90 drivers/base/core.c:3465
 wiphy_register+0x1ee8/0x2a40 net/wireless/core.c:928
 ieee80211_register_hw+0x22a3/0x3eb0 net/mac80211/main.c:1379
 mac80211_hwsim_new_radio+0x255f/0x4dd0 drivers/net/wireless/mac80211_hwsim.c:4129
 hwsim_new_radio_nl+0xa05/0x10f0 drivers/net/wireless/mac80211_hwsim.c:4724
 genl_family_rcv_msg_doit+0x228/0x320 net/netlink/genetlink.c:731
 genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]
 genl_rcv_msg+0x328/0x580 net/netlink/genetlink.c:792
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2501
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:803
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:734
 ____sys_sendmsg+0x6eb/0x810 net/socket.c:2482
 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536
 __sys_sendmsg+0xf3/0x1c0 net/socket.c:2565
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6c64089279
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6c65122168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f6c6419bf80 RCX: 00007f6c64089279
RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007f6c640e3189 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff965ed4ef R14: 00007f6c65122300 R15: 0000000000022000
 </TASK>