wlan0 speed is unknown, defaulting to 1000
==================================================================
BUG: KASAN: use-after-free in siw_query_port+0x342/0x430 drivers/infiniband/sw/siw/siw_verbs.c:177
Read of size 4 at addr ffff888056ab00e0 by task kworker/0:2/951

CPU: 0 PID: 951 Comm: kworker/0:2 Not tainted 6.1.132-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: infiniband ib_cache_event_task
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:316 [inline]
 print_report+0x15f/0x4f0 mm/kasan/report.c:427
 kasan_report+0x136/0x160 mm/kasan/report.c:531
 siw_query_port+0x342/0x430 drivers/infiniband/sw/siw/siw_verbs.c:177
 ib_cache_update+0x1a8/0xaf0 drivers/infiniband/core/cache.c:1483
 ib_cache_event_task+0xef/0x1e0 drivers/infiniband/core/cache.c:1557
 process_one_work+0x917/0x1260 kernel/workqueue.c:2292
 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>

Allocated by task 9143:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 ____kasan_kmalloc mm/kasan/common.c:374 [inline]
 __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __do_kmalloc_node mm/slab_common.c:936 [inline]
 __kmalloc_node_track_caller+0xb1/0x220 mm/slab_common.c:956
 kmalloc_reserve net/core/skbuff.c:446 [inline]
 __alloc_skb+0x12a/0x2c0 net/core/skbuff.c:515
 alloc_skb include/linux/skbuff.h:1271 [inline]
 alloc_uevent_skb+0x74/0x220 lib/kobject_uevent.c:290
 uevent_net_broadcast_tagged lib/kobject_uevent.c:351 [inline]
 kobject_uevent_net_broadcast+0x17d/0x560 lib/kobject_uevent.c:412
 kobject_uevent_env+0x576/0x8c0 lib/kobject_uevent.c:608
 __kobject_del+0xd3/0x310 lib/kobject.c:593
 kobject_cleanup lib/kobject.c:672 [inline]
 kobject_release lib/kobject.c:712 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x238/0x460 lib/kobject.c:729
 netdev_queue_update_kobjects+0x3db/0x480 net/core/net-sysfs.c:1731
 netif_set_real_num_tx_queues+0x18c/0x910 net/core/dev.c:2951
 veth_init_queues+0x82/0x180 drivers/net/veth.c:1650
 veth_newlink+0xa3a/0xc70 drivers/net/veth.c:1773
 rtnl_newlink_create net/core/rtnetlink.c:3419 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3639 [inline]
 rtnl_newlink+0x14ed/0x2060 net/core/rtnetlink.c:3652
 rtnetlink_rcv_msg+0x822/0x1000 net/core/rtnetlink.c:6150
 netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2493
 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
 netlink_unicast+0x7e2/0x970 net/netlink/af_netlink.c:1337
 netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1859
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 __sys_sendto+0x480/0x600 net/socket.c:2153
 __do_sys_sendto net/socket.c:2165 [inline]
 __se_sys_sendto net/socket.c:2161 [inline]
 __x64_sys_sendto+0xda/0xf0 net/socket.c:2161
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

Freed by task 9143:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1724 [inline]
 slab_free_freelist_hook mm/slub.c:1750 [inline]
 slab_free mm/slub.c:3661 [inline]
 __kmem_cache_free+0x25c/0x3c0 mm/slub.c:3674
 skb_free_head net/core/skbuff.c:762 [inline]
 skb_release_data+0x5de/0x7a0 net/core/skbuff.c:791
 skb_release_all net/core/skbuff.c:856 [inline]
 __kfree_skb net/core/skbuff.c:870 [inline]
 consume_skb+0xa3/0x140 net/core/skbuff.c:1035
 netlink_broadcast+0xfe5/0x1110 net/netlink/af_netlink.c:1508
 uevent_net_broadcast_tagged lib/kobject_uevent.c:372 [inline]
 kobject_uevent_net_broadcast+0x4c5/0x560 lib/kobject_uevent.c:412
 kobject_uevent_env+0x576/0x8c0 lib/kobject_uevent.c:608
 __kobject_del+0xd3/0x310 lib/kobject.c:593
 kobject_cleanup lib/kobject.c:672 [inline]
 kobject_release lib/kobject.c:712 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x238/0x460 lib/kobject.c:729
 netdev_queue_update_kobjects+0x3db/0x480 net/core/net-sysfs.c:1731
 netif_set_real_num_tx_queues+0x18c/0x910 net/core/dev.c:2951
 veth_init_queues+0x82/0x180 drivers/net/veth.c:1650
 veth_newlink+0xa3a/0xc70 drivers/net/veth.c:1773
 rtnl_newlink_create net/core/rtnetlink.c:3419 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3639 [inline]
 rtnl_newlink+0x14ed/0x2060 net/core/rtnetlink.c:3652
 rtnetlink_rcv_msg+0x822/0x1000 net/core/rtnetlink.c:6150
 netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2493
 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
 netlink_unicast+0x7e2/0x970 net/netlink/af_netlink.c:1337
 netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1859
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 __sys_sendto+0x480/0x600 net/socket.c:2153
 __do_sys_sendto net/socket.c:2165 [inline]
 __se_sys_sendto net/socket.c:2161 [inline]
 __x64_sys_sendto+0xda/0xf0 net/socket.c:2161
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

The buggy address belongs to the object at ffff888056ab0000
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 224 bytes inside of
 512-byte region [ffff888056ab0000, ffff888056ab0200)

The buggy address belongs to the physical page:
page:ffffea00015aac00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x56ab0
head:ffffea00015aac00 order:2 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 0000000000000000 dead000000000122 ffff888017c41c80
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 9143, tgid 9143 (syz-executor), ts 471429474321, free_ts 471427237107
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2532
 prep_new_page mm/page_alloc.c:2539 [inline]
 get_page_from_freelist+0x3731/0x38d0 mm/page_alloc.c:4328
 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5606
 alloc_slab_page+0x6a/0x150 mm/slub.c:1794
 allocate_slab mm/slub.c:1939 [inline]
 new_slab+0x84/0x2d0 mm/slub.c:1992
 ___slab_alloc+0xc20/0x1270 mm/slub.c:3180
 __slab_alloc mm/slub.c:3279 [inline]
 slab_alloc_node mm/slub.c:3364 [inline]
 __kmem_cache_alloc_node+0x19f/0x260 mm/slub.c:3437
 __do_kmalloc_node mm/slab_common.c:935 [inline]
 __kmalloc_node_track_caller+0xa0/0x220 mm/slab_common.c:956
 kmalloc_reserve net/core/skbuff.c:446 [inline]
 __alloc_skb+0x12a/0x2c0 net/core/skbuff.c:515
 alloc_skb include/linux/skbuff.h:1271 [inline]
 alloc_uevent_skb+0x74/0x220 lib/kobject_uevent.c:290
 uevent_net_broadcast_tagged lib/kobject_uevent.c:351 [inline]
 kobject_uevent_net_broadcast+0x17d/0x560 lib/kobject_uevent.c:412
 kobject_uevent_env+0x576/0x8c0 lib/kobject_uevent.c:608
 __kobject_del+0xd3/0x310 lib/kobject.c:593
 kobject_cleanup lib/kobject.c:672 [inline]
 kobject_release lib/kobject.c:712 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x238/0x460 lib/kobject.c:729
 netdev_queue_update_kobjects+0x3db/0x480 net/core/net-sysfs.c:1731
 netif_set_real_num_tx_queues+0x18c/0x910 net/core/dev.c:2951
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1459 [inline]
 free_pcp_prepare mm/page_alloc.c:1509 [inline]
 free_unref_page_prepare+0x12a6/0x15b0 mm/page_alloc.c:3384
 free_unref_page+0x33/0x3e0 mm/page_alloc.c:3479
 free_large_kmalloc+0xfb/0x190 mm/slab_common.c:913
 device_release+0x91/0x1c0 drivers/base/core.c:-1
 kobject_cleanup lib/kobject.c:681 [inline]
 kobject_release lib/kobject.c:712 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x224/0x460 lib/kobject.c:729
 netdev_run_todo+0xe19/0xf20 net/core/dev.c:10509
 ieee80211_unregister_hw+0xfc/0x290 net/mac80211/main.c:1485
 mac80211_hwsim_del_radio+0x2be/0x4a0 drivers/net/wireless/mac80211_hwsim.c:4683
 hwsim_exit_net+0x5bd/0x660 drivers/net/wireless/mac80211_hwsim.c:5470
 ops_exit_list net/core/net_namespace.c:172 [inline]
 cleanup_net+0x7f1/0xd20 net/core/net_namespace.c:640
 process_one_work+0x917/0x1260 kernel/workqueue.c:2292
 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Memory state around the buggy address:
 ffff888056aaff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888056ab0000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888056ab0080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                       ^
 ffff888056ab0100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888056ab0180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================