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BUG: KASAN: slab-use-after-free in rose_timer_expiry+0x471/0x4b0
Read of size 2 at addr ffff8881288f182a by task syz.1.4555/23031

CPU: 0 UID: 0 PID: 23031 Comm: syz.1.4555 Not tainted 6.16.0-rc5-syzkaller-00212-g9f735b6f8a77 #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+0xd2/0x2b0
 kasan_report+0x118/0x150
 rose_timer_expiry+0x471/0x4b0
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:lock_is_held_type+0x137/0x190
Code: 01 75 44 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 4c 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 05 19 43 32 07 <48> 3b 44 24 08 75 43 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc9000349f5d8 EFLAGS: 00000206
RAX: fa5dbc4213432a00 RBX: 0000000000000000 RCX: fa5dbc4213432a00
RDX: 0000000000000000 RSI: ffffffff8db83839 RDI: ffffffff8be28c40
RBP: 00000000ffffffff R08: ffffea0004860007 R09: 1ffffd400090c000
R10: dffffc0000000000 R11: fffff9400090c001 R12: 0000000000000246
R13: ffff888031310000 R14: ffffffff8e13f1c0 R15: 0000000000000003
 __might_resched+0xa6/0x610
 folio_zero_user+0x28c/0x500
 hugetlb_fault+0x1e77/0x29e0
 handle_mm_fault+0x740/0x8e0
 __get_user_pages+0x1af4/0x30b0
 populate_vma_page_range+0x26b/0x340
 __mm_populate+0x24c/0x380
 vm_mmap_pgoff+0x3f0/0x4c0
 ksys_mmap_pgoff+0x587/0x760
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8b7318e9a9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8b74031038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f8b733b6080 RCX: 00007f8b7318e9a9
RDX: 0000000000000003 RSI: 0000000000ff5000 RDI: 0000200000000000
RBP: 00007f8b73210d69 R08: ffffffffffffffff R09: 0000000000000000
R10: 00020000000ec071 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f8b733b6080 R15: 00007fffcb024b28
 </TASK>

Allocated by task 22881:
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_cache_noprof+0x230/0x3d0
 tipc_sub_subscribe+0x118/0x690
 tipc_conn_rcv_sub+0x136/0x350
 tipc_topsrv_kern_subscr+0x17b/0x240
 tipc_group_create+0x364/0x500
 tipc_sk_join+0x24d/0x6b0
 tipc_setsockopt+0x735/0x970
 do_sock_setsockopt+0x17c/0x1b0
 __x64_sys_setsockopt+0x13f/0x1b0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 22880:
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 kfree+0x18e/0x440
 tipc_topsrv_kern_unsubscr+0x12c/0x1a0
 tipc_group_delete+0x40c/0x480
 tipc_sk_leave+0x138/0x4e0
 tipc_release+0x5fc/0x2160
 sock_close+0xc3/0x240
 __fput+0x44c/0xa70
 task_work_run+0x1d4/0x260
 exit_to_user_mode_loop+0xec/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff8881288f1800
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 42 bytes inside of
 freed 512-byte region [ffff8881288f1800, ffff8881288f1a00)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8881288f1000 pfn:0x1288f0
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x57ff00000000240(workingset|head|node=1|zone=2|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 057ff00000000240 ffff88801a441c80 ffffea000422d910 ffffea0004270010
raw: ffff8881288f1000 000000000010000d 00000000f5000000 0000000000000000
head: 057ff00000000240 ffff88801a441c80 ffffea000422d910 ffffea0004270010
head: ffff8881288f1000 000000000010000d 00000000f5000000 0000000000000000
head: 057ff00000000002 ffffea0004a23c01 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 12363, tgid 12362 (syz.1.1709), ts 215509729241, free_ts 206339217807
 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/0x3b0
 ___slab_alloc+0xbfc/0x1480
 __kmalloc_cache_noprof+0x296/0x3d0
 __ipv6_dev_mc_inc+0x420/0xaf0
 ipv6_add_dev+0xe63/0x1370
 addrconf_notify+0x794/0x1010
 notifier_call_chain+0x1b6/0x3e0
 register_netdevice+0x1608/0x1ae0
 hsr_dev_finalize+0x641/0xaa0
 hsr_newlink+0x7d7/0x940
 rtnl_newlink_create+0x310/0xb00
 rtnl_newlink+0x16d6/0x1c70
page last free pid 11987 tgid 11987 stack trace:
 __free_frozen_pages+0xc71/0xe70
 __slab_free+0x326/0x400
 qlist_free_all+0x97/0x140
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 vm_area_dup+0x2b/0x680
 __split_vma+0x1a9/0xa00
 vms_gather_munmap_vmas+0x4ab/0x12b0
 mmap_region+0x678/0x1f30
 do_mmap+0xc45/0x10d0
 vm_mmap_pgoff+0x31b/0x4c0
 ksys_mmap_pgoff+0x51f/0x760
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff8881288f1700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8881288f1780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8881288f1800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                  ^
 ffff8881288f1880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8881288f1900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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