[   23.941059] BUG: Bad rss-counter state mm:00000000f28c7b00 type:MM_FILEPAGES val:33
[   23.942312] BUG: Bad rss-counter state mm:00000000f28c7b00 type:MM_ANONPAGES val:22
[   24.288051] ==================================================================
[   24.288911] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0
[   24.289809] Read of size 8 at addr ffff88800ec6c968 by task sshd/219
[   24.290539] 
[   24.290745] CPU: 1 PID: 219 Comm: sshd Not tainted 6.4.0-rc7-next-20230620 #1
[   24.291748] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   24.292672] Call Trace:
[   24.292980]  <TASK>
[   24.293253]  dump_stack_lvl+0x91/0xf0
[   24.293763]  print_report+0xcc/0x620
[   24.294230]  ? __virt_addr_valid+0x102/0x340
[   24.294749]  ? vma_interval_tree_remove+0xc75/0xec0
[   24.295333]  ? vma_interval_tree_remove+0xc75/0xec0
[   24.295916]  kasan_report+0xbe/0xf0
[   24.296367]  ? vma_interval_tree_remove+0xc75/0xec0
[   24.296954]  vma_interval_tree_remove+0xc75/0xec0
[   24.297530]  vma_prepare+0xc54/0x11a0
[   24.298017]  __split_vma+0x5af/0x950
[   24.298479]  ? __pfx___split_vma+0x10/0x10
[   24.299004]  ? find_held_lock+0x2c/0x110
[   24.299522]  do_vmi_align_munmap+0x2ba/0x11f0
[   24.300082]  ? lock_is_held_type+0x9f/0x120
[   24.300623]  ? __pfx_do_vmi_align_munmap+0x10/0x10
[   24.301232]  ? mtree_range_walk+0x632/0x900
[   24.301787]  ? mas_walk+0x5c7/0x7c0
[   24.302263]  do_vmi_munmap+0x1f1/0x2b0
[   24.302754]  mmap_region+0x1f9/0x2660
[   24.303233]  ? vm_mmap_pgoff+0x15c/0x3a0
[   24.303744]  ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[   24.304454]  ? __pfx_lock_acquire+0x10/0x10
[   24.304998]  ? __pfx_mmap_region+0x10/0x10
[   24.305553]  ? security_mmap_addr+0x7d/0xa0
[   24.306083]  ? get_unmapped_area+0x1f5/0x3f0
[   24.306633]  do_mmap+0x854/0xf00
[   24.307074]  vm_mmap_pgoff+0x1a6/0x3a0
[   24.307564]  ? __pfx_vm_mmap_pgoff+0x10/0x10
[   24.308121]  ksys_mmap_pgoff+0x3af/0x500
[   24.308629]  do_syscall_64+0x3f/0x90
[   24.309109]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   24.309770] RIP: 0033:0x7f8eaa9bbd82
[   24.310229] 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
[   24.312356] RSP: 002b:00007ffc236baed8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[   24.313260] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f8eaa9bbd82
[   24.314114] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f8ea9df5000
[   24.314965] RBP: 00007f8ea9df5000 R08: 0000000000000009 R09: 0000000000001000
[   24.315806] R10: 0000000000000812 R11: 0000000000000206 R12: 000056024c986ec0
[   24.316651] R13: 00007ffc236baef0 R14: 00007ffc236baf20 R15: 00007ffc236bb280
[   24.317536]  </TASK>
[   24.317829] 
[   24.318045] Allocated by task 207:
[   24.318476]  kasan_save_stack+0x22/0x50
[   24.318981]  kasan_set_track+0x25/0x30
[   24.319480]  __kasan_slab_alloc+0x59/0x70
[   24.320008]  kmem_cache_alloc+0x16b/0x370
[   24.320521]  vm_area_dup+0x20/0x160
[   24.320982]  __split_vma+0x170/0x950
[   24.321446]  split_vma+0xc6/0x110
[   24.321883]  mprotect_fixup+0x8d2/0xb30
[   24.322392]  do_mprotect_pkey+0x87e/0xd40
[   24.322912]  __x64_sys_mprotect+0x78/0xc0
[   24.323430]  do_syscall_64+0x3f/0x90
[   24.323912]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   24.324542] 
[   24.324760] Freed by task 13:
[   24.325147]  kasan_save_stack+0x22/0x50
[   24.325656]  kasan_set_track+0x25/0x30
[   24.326155]  kasan_save_free_info+0x2b/0x50
[   24.326687]  __kasan_slab_free+0x10a/0x190
[   24.327230]  kmem_cache_free+0x10d/0x4d0
[   24.327741]  rcu_core+0x8c8/0x2860
[   24.328191]  __do_softirq+0x1b7/0x7d4
[   24.328665] 
[   24.328881] Last potentially related work creation:
[   24.329482]  kasan_save_stack+0x22/0x50
[   24.329983]  __kasan_record_aux_stack+0x8e/0xa0
[   24.330553]  __call_rcu_common.constprop.0+0x6a/0xb90
[   24.331191]  remove_vma+0x139/0x170
[   24.331649]  do_vmi_align_munmap+0xd4a/0x11f0
[   24.332203]  do_vmi_munmap+0x1f1/0x2b0
[   24.332728]  __vm_munmap+0x138/0x3a0
[   24.333197]  __x64_sys_munmap+0x59/0x80
[   24.333704]  do_syscall_64+0x3f/0x90
[   24.334184]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   24.334823] 
[   24.335039] The buggy address belongs to the object at ffff88800ec6c910
[   24.335039]  which belongs to the cache vm_area_struct of size 168
[   24.336481] The buggy address is located 88 bytes inside of
[   24.336481]  freed 168-byte region [ffff88800ec6c910, ffff88800ec6c9b8)
[   24.337906] 
[   24.338119] The buggy address belongs to the physical page:
[   24.338779] page:00000000838d2aa0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xec6c
[   24.339860] memcg:ffff888009a2a401
[   24.340286] anon flags: 0x100000000000200(slab|node=0|zone=1)
[   24.340988] page_type: 0xffffffff()
[   24.341443] raw: 0100000000000200 ffff8880087a0c80 0000000000000000 dead000000000001
[   24.342356] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff888009a2a401
[   24.343274] page dumped because: kasan: bad access detected
[   24.343935] 
[   24.344155] Memory state around the buggy address:
[   24.344741]  ffff88800ec6c800: fc fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb
[   24.345627]  ffff88800ec6c880: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc
[   24.346491] >ffff88800ec6c900: fc fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb
[   24.347343]                                                           ^
[   24.348125]  ffff88800ec6c980: fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc 00
[   24.348979]  ffff88800ec6ca00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   24.349825] ==================================================================
[   24.350741] Disabling lock debugging due to kernel taint

Debian GNU/Linux 11 syzkaller ttyS0

syzkaller login: [   26.771918] BUG: Bad rss-counter state mm:0000000007eb8023 type:MM_FILEPAGES val:33
[   26.772899] BUG: Bad rss-counter state mm:0000000007eb8023 type:MM_ANONPAGES val:22
[   27.240181] BUG: Bad rss-counter state mm:00000000f788037f type:MM_FILEPAGES val:33
[   27.241191] BUG: Bad rss-counter state mm:00000000f788037f type:MM_ANONPAGES val:22
Warning: Permanently added '[localhost]:22128' (ECDSA) to the list of known hosts.
[   27.354643] general protection fault, probably for non-canonical address 0xe0837c0120000019: 0000 [#1] PREEMPT SMP KASAN NOPTI
[   27.356051] KASAN: maybe wild-memory-access in range [0x041c0009000000c8-0x041c0009000000cf]
[   27.357075] CPU: 0 PID: 237 Comm: sshd Tainted: G    B              6.4.0-rc7-next-20230620 #1
[   27.358114] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   27.359213] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0
[   27.359992] Code: c2 48 c1 ea 03 42 80 3c 2a 00 0f 85 55 05 00 00 4d 8b 74 24 08 49 39 ee 0f 84 77 01 00 00 4d 85 f6 74 1c 4c 89 f2 48 c1 ea 03 <42> 80 3c 2a 00 0f 85 61 05 00 00 41 f6 06 01 0f 84 7a 04 00 00 48
[   27.362371] RSP: 0018:ffff8880163078a8 EFLAGS: 00010213
[   27.363135] RAX: ffff8880187fa388 RBX: ffff888019948cf0 RCX: ffffffff844d49f9
[   27.364152] RDX: 0083800120000019 RSI: 0000000000000008 RDI: ffff88800eb84e48
[   27.365161] RBP: ffff8880161cc0c0 R08: ffff88800eb84e48 R09: 0000000000000000
[   27.366196] R10: 0000000000000000 R11: 00000000000b6a61 R12: ffff88800eb84e40
[   27.367232] R13: dffffc0000000000 R14: 041c0009000000cc R15: ffffffff816e6340
[   27.368259] FS:  00007f883a1e8900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[   27.369412] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.370284] CR2: 00007f883a1bb000 CR3: 000000000e844000 CR4: 0000000000350ef0
[   27.371123] Call Trace:
[   27.371430]  <TASK>
[   27.371703]  ? die_addr+0x3c/0xa0
[   27.372134]  ? exc_general_protection+0x125/0x220
[   27.372732]  ? asm_exc_general_protection+0x26/0x30
[   27.373346]  ? __pfx_vma_interval_tree_augment_rotate+0x10/0x10
[   27.374067]  ? __rb_insert_augmented+0x5e9/0x8b0
[   27.374644]  ? __rb_insert_augmented+0x9d/0x8b0
[   27.375212]  ? __rb_insert_augmented+0x5e9/0x8b0
[   27.375789]  vma_prepare+0xa1a/0x11a0
[   27.376252]  __split_vma+0x5af/0x950
[   27.376710]  ? __pfx___split_vma+0x10/0x10
[   27.377224]  ? lock_acquire+0x434/0x4c0
[   27.377715]  do_vmi_align_munmap+0x361/0x11f0
[   27.378269]  ? __pfx_do_vmi_align_munmap+0x10/0x10
[   27.378864]  ? mtree_range_walk+0x632/0x900
[   27.379400]  ? mas_walk+0x5c7/0x7c0
[   27.379862]  do_vmi_munmap+0x1f1/0x2b0
[   27.380335]  mmap_region+0x1f9/0x2660
[   27.380809]  ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[   27.381523]  ? __pfx_lock_acquire+0x10/0x10
[   27.382041]  ? __pfx_mmap_region+0x10/0x10
[   27.382557]  ? security_mmap_addr+0x7d/0xa0
[   27.383079]  ? get_unmapped_area+0x1f5/0x3f0
[   27.383620]  do_mmap+0x854/0xf00
[   27.384048]  vm_mmap_pgoff+0x1a6/0x3a0
[   27.384542]  ? __pfx_vm_mmap_pgoff+0x10/0x10
[   27.385085]  ksys_mmap_pgoff+0x3af/0x500
[   27.385581]  do_syscall_64+0x3f/0x90
[   27.386046]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   27.386667] RIP: 0033:0x7f883ad7ad82
[   27.387119] 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
[   27.389178] RSP: 002b:00007ffed8ef2828 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[   27.390068] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f883ad7ad82
[   27.390890] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f883a1b4000
[   27.391714] RBP: 00007f883a1b4000 R08: 0000000000000009 R09: 0000000000001000
[   27.392541] R10: 0000000000000812 R11: 0000000000000206 R12: 000055e24cd77d90
[   27.393367] R13: 00007ffed8ef2840 R14: 00007ffed8ef2870 R15: 00007ffed8ef2bd0
[   27.394216]  </TASK>
[   27.394501] Modules linked in:
[   27.394991] ---[ end trace 0000000000000000 ]---
[   27.395545] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0
[   27.396654] Code: c2 48 c1 ea 03 42 80 3c 2a 00 0f 85 55 05 00 00 4d 8b 74 24 08 49 39 ee 0f 84 77 01 00 00 4d 85 f6 74 1c 4c 89 f2 48 c1 ea 03 <42> 80 3c 2a 00 0f 85 61 05 00 00 41 f6 06 01 0f 84 7a 04 00 00 48
[   27.399108] RSP: 0018:ffff8880163078a8 EFLAGS: 00010213
[   27.399736] RAX: ffff8880187fa388 RBX: ffff888019948cf0 RCX: ffffffff844d49f9
[   27.400755] RDX: 0083800120000019 RSI: 0000000000000008 RDI: ffff88800eb84e48
[   27.401757] RBP: ffff8880161cc0c0 R08: ffff88800eb84e48 R09: 0000000000000000
[   27.402704] R10: 0000000000000000 R11: 00000000000b6a61 R12: ffff88800eb84e40
[   27.403576] R13: dffffc0000000000 R14: 041c0009000000cc R15: ffffffff816e6340
[   27.404431] FS:  00007f883a1e8900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[   27.405374] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.406097] CR2: 00007f883a1bb000 CR3: 000000000e844000 CR4: 0000000000350ef0

VM DIAGNOSIS:
22:54:31  Registers:
info registers vcpu 0
RAX=ffff88806ce35000 RBX=0000000000000000 RCX=ffffffff8451250e RDX=ffffed100d9c6a01
RSI=0000000000000004 RDI=ffffffff81288ac5 RBP=dffffc0000000000 RSP=ffffffff85407e10
R8 =0000000000000000 R9 =ffffed100d9c6a00 R10=ffff88806ce35003 R11=ffff888008c04000
R12=ffffffff85d3d350 R13=1ffffffff0a80fc7 R14=0000000000000000 R15=0000000000000000
RIP=ffffffff8451349f RFL=00000246 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=1
ES =0000 0000000000000000 00000000 00000000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS   [-WA]
DS =0000 0000000000000000 00000000 00000000
FS =0000 0000000000000000 00000000 00000000
GS =0000 ffff88806ce00000 00000000 00000000
LDT=0000 fffffe0000000000 00000000 00000000
TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy
GDT=     fffffe0000001000 0000007f
IDT=     fffffe0000000000 00000fff
CR0=80050033 CR2=00007ffc7198abb8 CR3=0000000018e86000 CR4=00350ef0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 
DR6=00000000ffff0ff0 DR7=0000000000000400
EFER=0000000000000d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
XMM00=2031333a34353a3232203032206e754a XMM01=657463656e6e6f63736944203a5d3832
XMM02=302e303120746f6f722072657375206d XMM03=203a5d3832325b646873732072656c6c
XMM04=69662068637573206f4e203a656c6163 XMM05=3a656c696620766e65206e65706f206f
XMM06=65733a6468737328766e655f6d617020 XMM07=6b7a79732031333a34353a3232203032
XMM08=3d656e696c646d632022656369767265 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000
info registers vcpu 1
RAX=dffffc0000000000 RBX=ffffffff846000aa RCX=0000000000000001 RDX=1ffff1100286ff5e
RSI=ffff88801437ff48 RDI=ffffffff846000aa RBP=ffffffff846000aa RSP=ffff88801437fa40
R8 =0000000000000001 R9 =ffff88801437fad8 R10=0000000000038001 R11=00000000000b5080
R12=ffff88801437fb60 R13=0000000000000000 R14=ffff888014211b40 R15=ffff88800e4edb80
RIP=ffffffff811fc6f7 RFL=00000292 [--S-A--] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0000 0000000000000000 00000000 00000000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS   [-WA]
DS =0000 0000000000000000 00000000 00000000
FS =0000 00007f60b8a4e900 00000000 00000000
GS =0000 ffff88806cf00000 00000000 00000000
LDT=0000 fffffe0000000000 00000000 00000000
TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy
GDT=     fffffe0000048000 0000007f
IDT=     fffffe0000000000 00000fff
CR0=80050033 CR2=00007f60fcdde650 CR3=000000000d890000 CR4=00350ee0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 
DR6=00000000ffff0ff0 DR7=0000000000000400
EFER=0000000000000d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
XMM00=ffffffffffffffffffffffffffffffff XMM01=30306234386136303638616663356134
XMM02=38303062343861363036386166633561 XMM03=2f6c616e72756f6a2f676f6c2f6e7572
XMM04=65b2a16182fb51d100000000000ae988 XMM05=60973acb179e8a020000000000132880
XMM06=806171799158d9670000000000131030 XMM07=00000000000000000000000000000000
XMM08=415453454d49545f454d49544c414552 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000