BUG: Bad rss-counter state mm:00000000fc935d6d type:MM_FILEPAGES val:33
BUG: Bad rss-counter state mm:00000000fc935d6d type:MM_ANONPAGES val:22
==================================================================
BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0
Read of size 8 at addr ffff888015aa5968 by task sshd/220

CPU: 1 PID: 220 Comm: sshd Not tainted 6.4.0-rc7-next-20230620 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x91/0xf0
 print_report+0xcc/0x620
 kasan_report+0xbe/0xf0
 vma_interval_tree_remove+0xc75/0xec0
 vma_prepare+0xc54/0x11a0
 __split_vma+0x5af/0x950
 do_vmi_align_munmap+0x2ba/0x11f0
 do_vmi_munmap+0x1f1/0x2b0
 mmap_region+0x1f9/0x2660
 do_mmap+0x854/0xf00
 vm_mmap_pgoff+0x1a6/0x3a0
 ksys_mmap_pgoff+0x3af/0x500
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f3999ab4d82
Code: eb aa 66 0f 1f 44 00 00 41 f7 c1 ff 0f 00 00 75 27 55 48 89 fd 53 89 cb 48 85 ff 74 33 41 89 da 48 89 ef b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 56 5b 5d c3 0f 1f 00 c7 05 ae 03 01 00 16 00
RSP: 002b:00007ffd1d5d26b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f3999ab4d82
RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f3998eee000
RBP: 00007f3998eee000 R08: 0000000000000009 R09: 0000000000001000
R10: 0000000000000812 R11: 0000000000000206 R12: 0000561f2538ab20
R13: 00007ffd1d5d26d0 R14: 00007ffd1d5d2700 R15: 00007ffd1d5d2a60
 </TASK>

Allocated by task 213:
 kasan_save_stack+0x22/0x50
 kasan_set_track+0x25/0x30
 __kasan_slab_alloc+0x59/0x70
 kmem_cache_alloc+0x16b/0x370
 vm_area_dup+0x20/0x160
 __split_vma+0x170/0x950
 split_vma+0xc6/0x110
 mprotect_fixup+0x8d2/0xb30
 do_mprotect_pkey+0x87e/0xd40
 __x64_sys_mprotect+0x78/0xc0
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x6e/0xd8

Freed by task 213:
 kasan_save_stack+0x22/0x50
 kasan_set_track+0x25/0x30
 kasan_save_free_info+0x2b/0x50
 __kasan_slab_free+0x10a/0x190
 kmem_cache_free+0x10d/0x4d0
 rcu_core+0x8c8/0x2860
 __do_softirq+0x1b7/0x7d4

Last potentially related work creation:
 kasan_save_stack+0x22/0x50
 __kasan_record_aux_stack+0x8e/0xa0
 __call_rcu_common.constprop.0+0x6a/0xb90
 remove_vma+0x139/0x170
 do_vmi_align_munmap+0xd4a/0x11f0
 do_vmi_munmap+0x1f1/0x2b0
 __vm_munmap+0x138/0x3a0
 __x64_sys_munmap+0x59/0x80
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x6e/0xd8

The buggy address belongs to the object at ffff888015aa5910
 which belongs to the cache vm_area_struct of size 168
The buggy address is located 88 bytes inside of
 freed 168-byte region [ffff888015aa5910, ffff888015aa59b8)

The buggy address belongs to the physical page:
page:0000000073e74800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x15aa5
memcg:ffff88801a39b301
flags: 0x100000000000200(slab|node=0|zone=1)
page_type: 0xffffffff()
raw: 0100000000000200 ffff8880087a0c80 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000110011 00000001ffffffff ffff88801a39b301
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888015aa5800: fc fc fc fc fc 00 00 00 00 00 00 00 00 00 00 00
 ffff888015aa5880: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc
>ffff888015aa5900: fc fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                          ^
 ffff888015aa5980: fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc fa
 ffff888015aa5a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
BUG: Bad rss-counter state mm:0000000089eaa328 type:MM_FILEPAGES val:33
BUG: Bad rss-counter state mm:0000000089eaa328 type:MM_ANONPAGES val:22
BUG: Bad rss-counter state mm:000000004db71ad3 type:MM_FILEPAGES val:33
BUG: Bad rss-counter state mm:000000004db71ad3 type:MM_ANONPAGES val:22
kmemleak: Automatic memory scanning thread ended
cgroup: Unknown subsys name 'net'
cgroup: Unknown subsys name 'rlimit'