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BUG: KASAN: slab-use-after-free in __xfrm_state_delete+0x696/0xca0
Write of size 8 at addr ffff888112cde430 by task syz-executor/5846

CPU: 1 UID: 0 PID: 5846 Comm: syz-executor Not tainted 6.16.0-syzkaller-12063-g37816488247d-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <IRQ>
 dump_stack_lvl+0x189/0x250
 print_report+0xca/0x240
 kasan_report+0x118/0x150
 __xfrm_state_delete+0x696/0xca0
 xfrm_timer_handler+0x18f/0xa00
 __hrtimer_run_queues+0x52c/0xc60
 hrtimer_run_softirq+0x187/0x2b0
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_call_function_single+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_call_function_single+0x1a/0x20
RIP: 0010:tomoyo_check_acl+0xd0/0x400
Code: 00 00 4c 8b 75 00 49 39 ee 0f 84 e6 01 00 00 4d 8d 7e 18 4c 89 f8 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 09 01 00 00 45 0f b6 3f <31> ff 44 89 fe e8 56 d7 42 fd 45 85 ff 74 0a e8 4c d4 42 fd e9 b4
RSP: 0018:ffffc9000364f908 EFLAGS: 00000246
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff888020779cc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888109b55187
RBP: ffff888104a60010 R08: ffff888020779cc0 R09: 0000000000000003
R10: 0000000000000009 R11: 0000000000000000 R12: 0000000000000007
R13: 0000000000000000 R14: ffff888109b55f80 R15: 0000000000000000
 tomoyo_path_permission+0x1b4/0x380
 tomoyo_path_perm+0x392/0x4b0
 security_inode_getattr+0x12f/0x330
 vfs_statx+0x18e/0x550
 vfs_fstatat+0x118/0x170
 __x64_sys_newfstatat+0x116/0x190
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6b9598d3fa
Code: 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 0b 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 90 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 c7 c2 a8 ff ff ff f7
RSP: 002b:00007ffcd94d6d08 EFLAGS: 00000286 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6b9598d3fa
RDX: 00007ffcd94d6d30 RSI: 00007ffcd94d6dc0 RDI: 00000000ffffff9c
RBP: 00007ffcd94d6dc0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000286 R12: 00007ffcd94d7e50
R13: 00007f6b95a11c05 R14: 00000000000334ec R15: 00007ffcd94d7e90
 </TASK>

Allocated by task 15470:
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 xfrm_state_alloc+0x24/0x2f0
 pfkey_add+0x6e4/0x2e00
 pfkey_sendmsg+0xbfe/0x1090
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 24:
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x5b/0x80
 kmem_cache_free+0x18f/0x400
 xfrm_state_gc_task+0x52d/0x6b0
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30

The buggy address belongs to the object at ffff888112cde400
 which belongs to the cache xfrm_state of size 928
The buggy address is located 48 bytes inside of
 freed 928-byte region [ffff888112cde400, ffff888112cde7a0)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888112cde400 pfn:0x112cdc
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x57ff00000000040(head|node=1|zone=2|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 057ff00000000040 ffff88801cba33c0 dead000000000122 0000000000000000
raw: ffff888112cde400 00000000800e0008 00000000f5000000 0000000000000000
head: 057ff00000000040 ffff88801cba33c0 dead000000000122 0000000000000000
head: ffff888112cde400 00000000800e0008 00000000f5000000 0000000000000000
head: 057ff00000000002 ffffea00044b3701 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0x52820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 6215, tgid 6214 (syz.2.121), ts 61738222622, free_ts 56632460827
 post_alloc_hook+0x240/0x2a0
 get_page_from_freelist+0x21e4/0x22c0
 __alloc_frozen_pages_noprof+0x181/0x370
 alloc_pages_mpol+0x232/0x4a0
 allocate_slab+0x8a/0x370
 ___slab_alloc+0xbeb/0x1410
 kmem_cache_alloc_noprof+0x283/0x3c0
 xfrm_state_alloc+0x24/0x2f0
 xfrm_add_sa+0x17d1/0x4070
 xfrm_user_rcv_msg+0x7a3/0xab0
 netlink_rcv_skb+0x208/0x470
 xfrm_netlink_rcv+0x79/0x90
 netlink_unicast+0x82f/0x9e0
 netlink_sendmsg+0x805/0xb30
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
page last free pid 3722 tgid 3722 stack trace:
 __free_frozen_pages+0xbc4/0xd30
 __slab_free+0x303/0x3c0
 qlist_free_all+0x97/0x140
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 kmem_cache_alloc_node_noprof+0x1bb/0x3c0
 __alloc_skb+0x112/0x2d0
 cfg80211_new_sta+0x119/0x3d0
 sta_info_insert_rcu+0x1393/0x1940
 ieee80211_ibss_finish_sta+0x293/0x380
 ieee80211_ibss_rx_queued_mgmt+0x1783/0x2ae0
 ieee80211_iface_work+0x85f/0x12d0
 cfg80211_wiphy_work+0x2bb/0x470
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0

Memory state around the buggy address:
 ffff888112cde300: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888112cde380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888112cde400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                     ^
 ffff888112cde480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888112cde500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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