BUG: KASAN: use-after-free in __hlist_del include/linux/list.h:835 [inline]
BUG: KASAN: use-after-free in hlist_del include/linux/list.h:852 [inline]
BUG: KASAN: use-after-free in __cpuhp_state_remove_instance+0x58b/0x5b0 kernel/cpu.c:2002
Read of size 8 at addr ffff88801b30bb98 by task syz-executor.3/9803

CPU: 1 PID: 9803 Comm: syz-executor.3 Not tainted 5.12.0-rc1-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0xfa/0x151 lib/dump_stack.c:120
 print_address_description.constprop.0.cold+0x5b/0x2c6 mm/kasan/report.c:232
 __kasan_report mm/kasan/report.c:399 [inline]
 kasan_report.cold+0x7c/0xd8 mm/kasan/report.c:416
 __hlist_del include/linux/list.h:835 [inline]
 hlist_del include/linux/list.h:852 [inline]
 __cpuhp_state_remove_instance+0x58b/0x5b0 kernel/cpu.c:2002
 cpuhp_state_remove_instance_nocalls include/linux/cpuhotplug.h:407 [inline]
 io_wq_create+0x6ca/0xbf0 fs/io-wq.c:1056
 io_init_wq_offload fs/io_uring.c:7792 [inline]
 io_uring_alloc_task_context+0x1bf/0x6a0 fs/io_uring.c:7811
 io_sq_offload_create fs/io_uring.c:7930 [inline]
 io_uring_create fs/io_uring.c:9486 [inline]
 io_uring_setup+0x1dcb/0x2be0 fs/io_uring.c:9571
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x465f69
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2c44758188 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465f69
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000006dee
RBP: 00000000004bfa8f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffc1df09b9f R14: 00007f2c44758300 R15: 0000000000022000

Allocated by task 9803:
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:427 [inline]
 ____kasan_kmalloc mm/kasan/common.c:506 [inline]
 ____kasan_kmalloc mm/kasan/common.c:465 [inline]
 __kasan_kmalloc+0x96/0xc0 mm/kasan/common.c:515
 kasan_kmalloc include/linux/kasan.h:233 [inline]
 kmem_cache_alloc_trace+0x1ef/0x430 mm/slab.c:3570
 kmalloc include/linux/slab.h:554 [inline]
 kzalloc include/linux/slab.h:684 [inline]
 io_wq_create+0xc0/0xbf0 fs/io-wq.c:1002
 io_init_wq_offload fs/io_uring.c:7792 [inline]
 io_uring_alloc_task_context+0x1bf/0x6a0 fs/io_uring.c:7811
 io_sq_offload_create fs/io_uring.c:7930 [inline]
 io_uring_create fs/io_uring.c:9486 [inline]
 io_uring_setup+0x1dcb/0x2be0 fs/io_uring.c:9571
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Freed by task 9803:
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
 kasan_set_track+0x1c/0x30 mm/kasan/common.c:46
 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:357
 ____kasan_slab_free mm/kasan/common.c:360 [inline]
 ____kasan_slab_free mm/kasan/common.c:325 [inline]
 __kasan_slab_free+0xc7/0x100 mm/kasan/common.c:367
 kasan_slab_free include/linux/kasan.h:199 [inline]
 __cache_free mm/slab.c:3440 [inline]
 kfree+0x104/0x2a0 mm/slab.c:3796
 io_wq_destroy fs/io-wq.c:1091 [inline]
 io_wq_put+0x4d0/0x6d0 fs/io-wq.c:1098
 io_wq_create+0x92d/0xbf0 fs/io-wq.c:1053
 io_init_wq_offload fs/io_uring.c:7792 [inline]
 io_uring_alloc_task_context+0x1bf/0x6a0 fs/io_uring.c:7811
 io_sq_offload_create fs/io_uring.c:7930 [inline]
 io_uring_create fs/io_uring.c:9486 [inline]
 io_uring_setup+0x1dcb/0x2be0 fs/io_uring.c:9571
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Last potentially related work creation:
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
 kasan_record_aux_stack+0xa4/0xd0 mm/kasan/generic.c:345
 insert_work+0x48/0x370 kernel/workqueue.c:1331
 __queue_work+0x5c1/0xf00 kernel/workqueue.c:1497
 queue_work_on+0xae/0xc0 kernel/workqueue.c:1524
 queue_work include/linux/workqueue.h:507 [inline]
 call_usermodehelper_exec+0x1f0/0x4c0 kernel/umh.c:433
 kobject_uevent_env+0xf9f/0x1680 lib/kobject_uevent.c:617
 rx_queue_add_kobject net/core/net-sysfs.c:1020 [inline]
 net_rx_queue_update_kobjects+0xee/0x450 net/core/net-sysfs.c:1060
 register_queue_kobjects net/core/net-sysfs.c:1742 [inline]
 netdev_register_kobject+0x275/0x430 net/core/net-sysfs.c:1990
 register_netdevice+0xd33/0x14a0 net/core/dev.c:10178
 cfg80211_register_netdevice+0x157/0x370 net/wireless/core.c:1350
 ieee80211_if_add+0xfb8/0x18f0 net/mac80211/iface.c:1990
 ieee80211_register_hw+0x331a/0x3c70 net/mac80211/main.c:1285
 mac80211_hwsim_new_radio+0x20d9/0x4910 drivers/net/wireless/mac80211_hwsim.c:3333
 hwsim_new_radio_nl+0x9d6/0x1140 drivers/net/wireless/mac80211_hwsim.c:3894
 genl_family_rcv_msg_doit+0x228/0x320 net/netlink/genetlink.c:739
 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]
 genl_rcv_msg+0x328/0x580 net/netlink/genetlink.c:800
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2502
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811
 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338
 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927
 sock_sendmsg_nosec net/socket.c:654 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:674
 __sys_sendto+0x21c/0x320 net/socket.c:1977
 __do_sys_sendto net/socket.c:1989 [inline]
 __se_sys_sendto net/socket.c:1985 [inline]
 __x64_sys_sendto+0xdd/0x1b0 net/socket.c:1985
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Second to last potentially related work creation:
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
 kasan_record_aux_stack+0xa4/0xd0 mm/kasan/generic.c:345
 insert_work+0x48/0x370 kernel/workqueue.c:1331
 __queue_work+0x5c1/0xf00 kernel/workqueue.c:1497
 queue_work_on+0xae/0xc0 kernel/workqueue.c:1524
 queue_work include/linux/workqueue.h:507 [inline]
 netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:658 [inline]
 netdevice_event+0x3aa/0x720 drivers/infiniband/core/roce_gid_mgmt.c:801
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2063
 call_netdevice_notifiers_extack net/core/dev.c:2075 [inline]
 call_netdevice_notifiers+0x79/0xa0 net/core/dev.c:2089
 ipvlan_device_event+0x915/0xc10 drivers/net/ipvlan/ipvlan_main.c:790
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2063
 call_netdevice_notifiers_extack net/core/dev.c:2075 [inline]
 call_netdevice_notifiers net/core/dev.c:2089 [inline]
 dev_set_mac_address+0x2d5/0x3e0 net/core/dev.c:8918
 dev_set_mac_address_user+0x2d/0x50 net/core/dev.c:8932
 do_setlink+0x1695/0x3a70 net/core/rtnetlink.c:2663
 __rtnl_newlink+0xdc6/0x1710 net/core/rtnetlink.c:3376
 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3491
 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5553
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2502
 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338
 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927
 sock_sendmsg_nosec net/socket.c:654 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:674
 __sys_sendto+0x21c/0x320 net/socket.c:1977
 __do_sys_sendto net/socket.c:1989 [inline]
 __se_sys_sendto net/socket.c:1985 [inline]
 __x64_sys_sendto+0xdd/0x1b0 net/socket.c:1985
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae

The buggy address belongs to the object at ffff88801b30bb00
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 152 bytes inside of
 192-byte region [ffff88801b30bb00, ffff88801b30bbc0)
The buggy address belongs to the page:
page:000000002b7d91ae refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1b30b
flags: 0xfff00000000200(slab)
raw: 00fff00000000200 ffffea0000820f48 ffffea00004d2bc8 ffff888010840000
raw: 0000000000000000 ffff88801b30b000 0000000100000010 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff88801b30ba80: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88801b30bb00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88801b30bb80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
                            ^
 ffff88801b30bc00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88801b30bc80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
==================================================================