==================================================================
BUG: KASAN: double-free in slab_free mm/slub.c:3687 [inline]
BUG: KASAN: double-free in __kmem_cache_free+0xb6/0x200 mm/slub.c:3700
Free of addr ffff88802fad4180 by task syz.1.467/7318

CPU: 1 PID: 7318 Comm: syz.1.467 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:316 [inline]
 print_report+0xa8/0x210 mm/kasan/report.c:420
 kasan_report_invalid_free+0xdd/0x100 mm/kasan/report.c:489
 ____kasan_slab_free+0x149/0x1f0 mm/kasan/common.c:-1
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1729 [inline]
 slab_free_freelist_hook+0x133/0x1b0 mm/slub.c:1755
 slab_free mm/slub.c:3687 [inline]
 __kmem_cache_free+0xb6/0x200 mm/slub.c:3700
 dm_ima_measure_on_device_resume+0x2c9/0xba0 drivers/md/dm-ima.c:393
 do_resume drivers/md/dm-ioctl.c:1211 [inline]
 dev_suspend+0x49f/0x700 drivers/md/dm-ioctl.c:1241
 ctl_ioctl drivers/md/dm-ioctl.c:2055 [inline]
 dm_ctl_ioctl+0xa9c/0xec0 drivers/md/dm-ioctl.c:2077
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb67339f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb674315028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fb673626180 RCX: 00007fb67339f559
RDX: 0000200000000b00 RSI: 00000000c138fd06 RDI: 0000000000000007
RBP: 00007fb673436b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb673626218 R14: 00007fb673626180 R15: 00007ffe01d79d58
 </TASK>

Allocated by task 4690:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 ____kasan_kmalloc mm/kasan/common.c:375 [inline]
 __kasan_kmalloc+0x8e/0xa0 mm/kasan/common.c:384
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __do_kmalloc_node mm/slab_common.c:936 [inline]
 __kmalloc+0xb3/0x240 mm/slab_common.c:949
 kmalloc include/linux/slab.h:568 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 cfg80211_inform_single_bss_frame_data net/wireless/scan.c:2488 [inline]
 cfg80211_inform_bss_frame_data+0x728/0x1390 net/wireless/scan.c:2549
 ieee80211_bss_info_update+0x6ef/0xbf0 net/mac80211/scan.c:190
 ieee80211_rx_bss_info net/mac80211/ibss.c:1120 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x1931/0x2eb0 net/mac80211/ibss.c:1638
 ieee80211_iface_process_skb net/mac80211/iface.c:1711 [inline]
 ieee80211_iface_work+0x72c/0xc70 net/mac80211/iface.c:1765
 cfg80211_wiphy_work+0x224/0x260 net/wireless/core.c:433
 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Freed by task 5280:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0x126/0x1f0 mm/kasan/common.c:237
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1729 [inline]
 slab_free_freelist_hook+0x133/0x1b0 mm/slub.c:1755
 slab_free mm/slub.c:3687 [inline]
 kmem_cache_free_bulk+0x364/0x480 mm/slub.c:3805
 kfree_bulk include/linux/slab.h:475 [inline]
 kfree_rcu_work+0x35c/0xa20 kernel/rcu/tree.c:3091
 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Last potentially related work creation:
 kasan_save_stack+0x3a/0x60 mm/kasan/common.c:46
 __kasan_record_aux_stack+0xb2/0xc0 mm/kasan/generic.c:486
 kvfree_call_rcu+0x103/0x890 kernel/rcu/tree.c:3405
 cfg80211_update_known_bss+0x184/0xb60 net/wireless/scan.c:-1
 cfg80211_bss_update+0x156/0x21f0 net/wireless/scan.c:1847
 cfg80211_inform_single_bss_frame_data net/wireless/scan.c:2516 [inline]
 cfg80211_inform_bss_frame_data+0xa77/0x1390 net/wireless/scan.c:2549
 ieee80211_bss_info_update+0x6ef/0xbf0 net/mac80211/scan.c:190
 ieee80211_rx_bss_info net/mac80211/ibss.c:1120 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x1931/0x2eb0 net/mac80211/ibss.c:1638
 ieee80211_iface_process_skb net/mac80211/iface.c:1711 [inline]
 ieee80211_iface_work+0x72c/0xc70 net/mac80211/iface.c:1765
 cfg80211_wiphy_work+0x224/0x260 net/wireless/core.c:433
 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Second to last potentially related work creation:
 kasan_save_stack+0x3a/0x60 mm/kasan/common.c:46
 __kasan_record_aux_stack+0xb2/0xc0 mm/kasan/generic.c:486
 kvfree_call_rcu+0x103/0x890 kernel/rcu/tree.c:3405
 cfg80211_update_known_bss+0x184/0xb60 net/wireless/scan.c:-1
 cfg80211_bss_update+0x156/0x21f0 net/wireless/scan.c:1847
 cfg80211_inform_single_bss_frame_data net/wireless/scan.c:2516 [inline]
 cfg80211_inform_bss_frame_data+0xa77/0x1390 net/wireless/scan.c:2549
 ieee80211_bss_info_update+0x6ef/0xbf0 net/mac80211/scan.c:190
 ieee80211_rx_bss_info net/mac80211/ibss.c:1120 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x1931/0x2eb0 net/mac80211/ibss.c:1638
 ieee80211_iface_process_skb net/mac80211/iface.c:1711 [inline]
 ieee80211_iface_work+0x72c/0xc70 net/mac80211/iface.c:1765
 cfg80211_wiphy_work+0x224/0x260 net/wireless/core.c:433
 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

The buggy address belongs to the object at ffff88802fad4180
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 0 bytes inside of
 96-byte region [ffff88802fad4180, ffff88802fad41e0)

The buggy address belongs to the physical page:
page:ffffea0000beb500 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88802fad4f00 pfn:0x2fad4
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 ffffea0000becb88 ffffea0000c7db48 ffff888018441780
raw: ffff88802fad4f00 000000000020001e 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY), pid 4368, tgid 4368 (kworker/1:4), ts 76009807768, free_ts 75908584697
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2560
 prep_new_page mm/page_alloc.c:2567 [inline]
 get_page_from_freelist+0x206b/0x2180 mm/page_alloc.c:4358
 __alloc_pages+0x1ec/0x4f0 mm/page_alloc.c:5658
 alloc_slab_page+0x5d/0x180 mm/slub.c:1799
 allocate_slab mm/slub.c:1944 [inline]
 new_slab+0x87/0x2d0 mm/slub.c:1997
 ___slab_alloc+0xbc5/0x1240 mm/slub.c:3154
 __slab_alloc mm/slub.c:3240 [inline]
 slab_alloc_node mm/slub.c:3325 [inline]
 __kmem_cache_alloc_node+0x126/0x270 mm/slub.c:3398
 kmalloc_trace+0x26/0xe0 mm/slab_common.c:1026
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 nsim_fib_event_schedule_work drivers/net/netdevsim/fib.c:990 [inline]
 nsim_fib_event_nb+0xd8/0x1040 drivers/net/netdevsim/fib.c:1043
 notifier_call_chain kernel/notifier.c:87 [inline]
 atomic_notifier_call_chain+0x17a/0x2b0 kernel/notifier.c:225
 call_fib_notifiers+0x2d/0x60 net/core/fib_notifier.c:35
 call_fib6_entry_notifiers net/ipv6/ip6_fib.c:402 [inline]
 fib6_add_rt2node net/ipv6/ip6_fib.c:1231 [inline]
 fib6_add+0x1bfd/0x3ed0 net/ipv6/ip6_fib.c:1489
 __ip6_ins_rt net/ipv6/route.c:1350 [inline]
 ip6_ins_rt+0xd3/0x130 net/ipv6/route.c:1360
 __ipv6_ifa_notify+0x4e7/0xe60 net/ipv6/addrconf.c:6229
 ipv6_ifa_notify net/ipv6/addrconf.c:6268 [inline]
 addrconf_dad_completed+0x19e/0xd90 net/ipv6/addrconf.c:4272
 addrconf_dad_work+0xc68/0x1500 net/ipv6/addrconf.c:-1
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1487 [inline]
 free_pcp_prepare mm/page_alloc.c:1537 [inline]
 free_unref_page_prepare+0x8e5/0x9e0 mm/page_alloc.c:3414
 free_unref_page+0x2e/0x3f0 mm/page_alloc.c:3509
 free_slab mm/slub.c:2036 [inline]
 discard_slab mm/slub.c:2042 [inline]
 __unfreeze_partials+0x188/0x1e0 mm/slub.c:2591
 put_cpu_partial+0x17c/0x250 mm/slub.c:2667
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x144/0x160 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x1e/0x80 mm/kasan/common.c:306
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook+0x4b/0x490 mm/slab.h:737
 slab_alloc_node mm/slub.c:3359 [inline]
 __kmem_cache_alloc_node+0x19d/0x270 mm/slub.c:3398
 kmalloc_trace+0x26/0xe0 mm/slab_common.c:1026
 kmalloc include/linux/slab.h:563 [inline]
 netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:643 [inline]
 netdevice_event+0x325/0x900 drivers/infiniband/core/roce_gid_mgmt.c:802
 notifier_call_chain kernel/notifier.c:87 [inline]
 raw_notifier_call_chain+0xcb/0x160 kernel/notifier.c:455
 call_netdevice_notifiers_extack net/core/dev.c:2052 [inline]
 call_netdevice_notifiers net/core/dev.c:2066 [inline]
 __dev_notify_flags+0x1a7/0x310 net/core/dev.c:8716
 dev_change_flags+0xda/0x1a0 net/core/dev.c:8754
 do_setlink+0xbc7/0x29c0 net/core/rtnetlink.c:2845
 __rtnl_newlink net/core/rtnetlink.c:3622 [inline]
 rtnl_newlink+0x16e4/0x1f90 net/core/rtnetlink.c:3669

Memory state around the buggy address:
 ffff88802fad4080: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
 ffff88802fad4100: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
>ffff88802fad4180: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
                   ^
 ffff88802fad4200: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
 ffff88802fad4280: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
==================================================================