syzkaller login: [   33.392541] BUG: Bad rss-counter state mm:00000000e9d8d791 type:MM_FILEPAGES val:33
[   33.393772] BUG: Bad rss-counter state mm:00000000e9d8d791 type:MM_ANONPAGES val:22
[   33.564599] ==================================================================
[   33.565577] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0
[   33.566628] Read of size 8 at addr ffff88800e3504e0 by task sshd/219
[   33.567553] 
[   33.567793] CPU: 1 PID: 219 Comm: sshd Not tainted 6.4.0-rc7-next-20230619 #1
[   33.568729] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   33.569804] Call Trace:
[   33.570153]  <TASK>
[   33.570459]  dump_stack_lvl+0x91/0xf0
[   33.570991]  print_report+0xcc/0x620
[   33.571509]  ? __virt_addr_valid+0x102/0x340
[   33.572101]  ? vma_interval_tree_remove+0xc75/0xec0
[   33.572797]  ? vma_interval_tree_remove+0xc75/0xec0
[   33.573456]  kasan_report+0xbe/0xf0
[   33.573983]  ? vma_interval_tree_remove+0xc75/0xec0
[   33.574670]  vma_interval_tree_remove+0xc75/0xec0
[   33.575336]  vma_prepare+0xc54/0x11a0
[   33.575868]  __split_vma+0x5af/0x950
[   33.576401]  ? __pfx___split_vma+0x10/0x10
[   33.576988]  ? find_held_lock+0x2c/0x110
[   33.577574]  do_vmi_align_munmap+0x2ba/0x11f0
[   33.578199]  ? lock_is_held_type+0x9f/0x120
[   33.578796]  ? __pfx_do_vmi_align_munmap+0x10/0x10
[   33.579473]  ? mtree_range_walk+0x632/0x900
[   33.580083]  ? mas_walk+0x5c7/0x7c0
[   33.580619]  do_vmi_munmap+0x1f1/0x2b0
[   33.581166]  mmap_region+0x1f9/0x2660
[   33.581701]  ? vm_mmap_pgoff+0x15c/0x3a0
[   33.582272]  ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[   33.583065]  ? __pfx_lock_acquire+0x10/0x10
[   33.583656]  ? __pfx_mmap_region+0x10/0x10
[   33.584263]  ? security_mmap_addr+0x7d/0xa0
[   33.584851]  ? get_unmapped_area+0x1f5/0x3f0
[   33.585461]  do_mmap+0x854/0xf00
[   33.585943]  vm_mmap_pgoff+0x1a6/0x3a0
[   33.586494]  ? __pfx_vm_mmap_pgoff+0x10/0x10
[   33.587116]  ksys_mmap_pgoff+0x3af/0x500
[   33.587678]  do_syscall_64+0x3f/0x90
[   33.588219]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   33.588937] RIP: 0033:0x7fb84cf6ed82
[   33.589444] 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
[   33.591820] RSP: 002b:00007ffc962f1078 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[   33.592814] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fb84cf6ed82
[   33.593755] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007fb84c3a8000
[   33.594696] RBP: 00007fb84c3a8000 R08: 0000000000000009 R09: 0000000000001000
[   33.595635] R10: 0000000000000812 R11: 0000000000000206 R12: 0000562eff317ec0
[   33.596585] R13: 00007ffc962f1090 R14: 00007ffc962f10c0 R15: 00007ffc962f1420
[   33.597539]  </TASK>
[   33.597862] 
[   33.598097] Allocated by task 211:
[   33.598576]  kasan_save_stack+0x22/0x50
[   33.599131]  kasan_set_track+0x25/0x30
[   33.599678]  __kasan_slab_alloc+0x59/0x70
[   33.600262]  kmem_cache_alloc+0x16b/0x370
[   33.600834]  vm_area_dup+0x20/0x160
[   33.601336]  __split_vma+0x170/0x950
[   33.601851]  split_vma+0xc6/0x110
[   33.602336]  mprotect_fixup+0x8d2/0xb30
[   33.602892]  do_mprotect_pkey+0x87e/0xd40
[   33.603467]  __x64_sys_mprotect+0x78/0xc0
[   33.604041]  do_syscall_64+0x3f/0x90
[   33.604576]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   33.605287] 
[   33.605526] Freed by task 206:
[   33.605955]  kasan_save_stack+0x22/0x50
[   33.606516]  kasan_set_track+0x25/0x30
[   33.607068]  kasan_save_free_info+0x2b/0x50
[   33.607668]  __kasan_slab_free+0x10a/0x190
[   33.608257]  kmem_cache_free+0x10d/0x4d0
[   33.608820]  rcu_core+0x8c8/0x2860
[   33.609316]  __do_softirq+0x1b7/0x7d4
[   33.609842] 
[   33.610081] Last potentially related work creation:
[   33.610727]  kasan_save_stack+0x22/0x50
[   33.611287]  __kasan_record_aux_stack+0x8e/0xa0
[   33.611920]  __call_rcu_common.constprop.0+0x6a/0xb90
[   33.612649]  remove_vma+0x139/0x170
[   33.613152]  do_vmi_align_munmap+0xd4a/0x11f0
[   33.613767]  do_vmi_munmap+0x1f1/0x2b0
[   33.614305]  __vm_munmap+0x138/0x3a0
[   33.614819]  __x64_sys_munmap+0x59/0x80
[   33.615375]  do_syscall_64+0x3f/0x90
[   33.615901]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   33.616618] 
[   33.616871] Second to last potentially related work creation:
[   33.617631]  kasan_save_stack+0x22/0x50
[   33.618190]  __kasan_record_aux_stack+0x8e/0xa0
[   33.618830]  __call_rcu_common.constprop.0+0x6a/0xb90
[   33.619546]  remove_vma+0x139/0x170
[   33.620046]  do_vmi_align_munmap+0xd4a/0x11f0
[   33.620666]  do_vmi_munmap+0x1f1/0x2b0
[   33.621188]  mmap_region+0x1f9/0x2660
[   33.621714]  do_mmap+0x854/0xf00
[   33.622184]  vm_mmap_pgoff+0x1a6/0x3a0
[   33.622708]  ksys_mmap_pgoff+0x3af/0x500
[   33.623249]  do_syscall_64+0x3f/0x90
[   33.623767]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   33.624470] 
[   33.624700] The buggy address belongs to the object at ffff88800e350488
[   33.624700]  which belongs to the cache vm_area_struct of size 168
[   33.626280] The buggy address is located 88 bytes inside of
[   33.626280]  freed 168-byte region [ffff88800e350488, ffff88800e350530)
[   33.627801] 
[   33.628035] The buggy address belongs to the physical page:
[   33.628749] page:00000000d9d0605f refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xe350
[   33.629913] memcg:ffff88800dbe2b01
[   33.630371] flags: 0x100000000000200(slab|node=0|zone=1)
[   33.631080] page_type: 0xffffffff()
[   33.631584] raw: 0100000000000200 ffff88800879fc80 ffffea00003ad640 dead000000000006
[   33.632619] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff88800dbe2b01
[   33.633626] page dumped because: kasan: bad access detected
[   33.634360] 
[   33.634598] Memory state around the buggy address:
[   33.635226]  ffff88800e350380: fc fc fc fc 00 00 00 00 00 00 00 00 00 00 00 00
[   33.636149]  ffff88800e350400: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
[   33.637064] >ffff88800e350480: fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   33.637982]                                                        ^
[   33.638798]  ffff88800e350500: fb fb fb fb fb fb fc fc fc fc fc fc fc fc 00 00
[   33.639709]  ffff88800e350580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   33.640627] ==================================================================
[   33.642102] Disabling lock debugging due to kernel taint
[   35.996111] BUG: Bad rss-counter state mm:00000000a498c39f type:MM_FILEPAGES val:33
[   35.997195] BUG: Bad rss-counter state mm:00000000a498c39f type:MM_ANONPAGES val:22
[   36.493605] BUG: Bad rss-counter state mm:00000000eb969178 type:MM_FILEPAGES val:33
[   36.494818] BUG: Bad rss-counter state mm:00000000eb969178 type:MM_ANONPAGES val:22
Warning: Permanently added '[localhost]:64344' (ECDSA) to the list of known hosts.
2023/06/20 01:16:57 fuzzer started
2023/06/20 01:16:57 dialing manager at localhost:44161
2023/06/20 01:16:57 checking machine...
2023/06/20 01:16:57 checking revisions...
[   37.264916] kmemleak: Automatic memory scanning thread ended
2023/06/20 01:16:57 testing simple program...
[   37.308912] cgroup: Unknown subsys name 'net'
[   37.354213] cgroup: Unknown subsys name 'rlimit'
executing program
[   41.439532] general protection fault, probably for non-canonical address 0xe0b57c23e000001d: 0000 [#1] PREEMPT SMP KASAN NOPTI
[   41.440857] KASAN: maybe wild-memory-access in range [0x05ac011f000000e8-0x05ac011f000000ef]
[   41.441787] CPU: 0 PID: 264 Comm: cron Tainted: G    B              6.4.0-rc7-next-20230619 #1
[   41.442756] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   41.443669] RIP: 0010:vma_interval_tree_insert+0x114/0x400
[   41.444340] Code: fa 48 c1 ea 03 80 3c 2a 00 0f 85 52 02 00 00 49 8b 17 48 85 d2 74 7f 48 89 d3 e8 e7 9c dd ff 48 8d 7b 18 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 23 02 00 00 4c 8b 7b 18 4c 89 e6 4c 89 ff e8 d3
[   41.446335] RSP: 0018:ffff88800cbb78a8 EFLAGS: 00010217
[   41.446939] RAX: 00b58023e000001d RBX: 05ac011f000000d5 RCX: 0000000000000000
[   41.447743] RDX: ffff88801024d1c0 RSI: ffffffff816e6af9 RDI: 05ac011f000000ed
[   41.448565] RBP: dffffc0000000000 R08: 0000000000000006 R09: 0000000000000003
[   41.449375] R10: 0000000000000000 R11: 00000000000b6996 R12: 0000000000000005
[   41.450165] R13: 0000000000000003 R14: ffff88800e49b3a0 R15: ffff88800e4b0008
[   41.450965] FS:  00007ff9c52d9840(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[   41.451856] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.452518] CR2: 00007ff9c4eab000 CR3: 000000001675e000 CR4: 0000000000350ef0
[   41.453320] Call Trace:
[   41.453619]  <TASK>
[   41.453890]  ? die_addr+0x3c/0xa0
[   41.454305]  ? exc_general_protection+0x125/0x220
[   41.454883]  ? asm_exc_general_protection+0x26/0x30
[   41.455474]  ? vma_interval_tree_insert+0x109/0x400
[   41.456053]  ? vma_interval_tree_insert+0x114/0x400
[   41.456640]  ? vma_interval_tree_insert+0x109/0x400
[   41.457219]  vma_prepare+0xa1a/0x11a0
[   41.457673]  __split_vma+0x5af/0x950
[   41.458120]  ? __pfx___split_vma+0x10/0x10
[   41.458620]  ? lock_acquire+0x434/0x4c0
[   41.459088]  do_vmi_align_munmap+0x361/0x11f0
[   41.459626]  ? __pfx_do_vmi_align_munmap+0x10/0x10
[   41.460197]  ? mtree_range_walk+0x632/0x900
[   41.460734]  ? mas_walk+0x5c7/0x7c0
[   41.461179]  do_vmi_munmap+0x1f1/0x2b0
[   41.461646]  mmap_region+0x1f9/0x2660
[   41.462104]  ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[   41.462786]  ? __pfx_lock_acquire+0x10/0x10
[   41.463289]  ? __pfx_mmap_region+0x10/0x10
[   41.463784]  ? security_mmap_addr+0x7d/0xa0
[   41.464285]  ? get_unmapped_area+0x1f5/0x3f0
[   41.464806]  do_mmap+0x854/0xf00
[   41.465219]  vm_mmap_pgoff+0x1a6/0x3a0
[   41.465683]  ? __pfx_vm_mmap_pgoff+0x10/0x10
[   41.466208]  ksys_mmap_pgoff+0x3af/0x500
[   41.466703]  do_syscall_64+0x3f/0x90
[   41.467153]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   41.467756] RIP: 0033:0x7ff9c55fbd82
[   41.468189] 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
[   41.470182] RSP: 002b:00007ffdb3602688 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[   41.471032] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007ff9c55fbd82
[   41.471828] RDX: 0000000000000005 RSI: 0000000000002000 RDI: 00007ff9c4ea5000
[   41.472665] RBP: 00007ff9c4ea5000 R08: 0000000000000008 R09: 0000000000001000
[   41.473494] R10: 0000000000000812 R11: 0000000000000206 R12: 00005601d2d7b550
[   41.474323] R13: 00007ffdb36026a0 R14: 00007ffdb36026d0 R15: 00007ffdb3602a30
[   41.475190]  </TASK>
[   41.475474] Modules linked in:
[   41.475903] ---[ end trace 0000000000000000 ]---
[   41.476445] RIP: 0010:vma_interval_tree_insert+0x114/0x400
[   41.477118] Code: fa 48 c1 ea 03 80 3c 2a 00 0f 85 52 02 00 00 49 8b 17 48 85 d2 74 7f 48 89 d3 e8 e7 9c dd ff 48 8d 7b 18 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 23 02 00 00 4c 8b 7b 18 4c 89 e6 4c 89 ff e8 d3
[   41.479129] RSP: 0018:ffff88800cbb78a8 EFLAGS: 00010217
[   41.479750] RAX: 00b58023e000001d RBX: 05ac011f000000d5 RCX: 0000000000000000
[   41.480577] RDX: ffff88801024d1c0 RSI: ffffffff816e6af9 RDI: 05ac011f000000ed
[   41.481370] RBP: dffffc0000000000 R08: 0000000000000006 R09: 0000000000000003
[   41.482184] R10: 0000000000000000 R11: 00000000000b6996 R12: 0000000000000005
[   41.482994] R13: 0000000000000003 R14: ffff88800e49b3a0 R15: ffff88800e4b0008
[   41.483808] FS:  00007ff9c52d9840(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[   41.484728] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.485383] CR2: 00007ff9c4eab000 CR3: 000000001675e000 CR4: 0000000000350ef0
executing program
executing program

VM DIAGNOSIS:
01:16:52  Registers:
info registers vcpu 0
RAX=1ffff11001b49fb1 RBX=ffff88800da4fd88 RCX=0000000000000000 RDX=0000000000000001
RSI=ffff88800da4fda8 RDI=ffff88800c55ee40 RBP=ffff88800c55ee40 RSP=ffff88800da4fc80
R8 =0000000000000005 R9 =0000000000000000 R10=0000000000000000 R11=0000000000000000
R12=ffff88800c55ee58 R13=ffff88800c55ee60 R14=dffffc0000000000 R15=ffff88800da4fd88
RIP=ffffffff8199b712 RFL=00000246 [---Z-P-] 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 00007f16f97c5900 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=00007f16f8c40fe0 CR3=000000000b3ac000 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=00000000000000000000000000000000 XMM01=a385c069c4f8af8f7646424e662399ba
XMM02=2c67c8bc2e329bc30000000000121a00 XMM03=fb795ef6d65770560000000000124308
XMM04=3cc899d42d88791b00000000000ae988 XMM05=19e9129bd510f23500000000001358a8
XMM06=d9ef6cd2988f32b00000000000134710 XMM07=e042d86d42eb936e0000000000124588
XMM08=f77bab6e50d58d180000000000121a60 XMM09=00000000000000000000000000000000
XMM10=20200000000020202020202020200000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000
info registers vcpu 1
RAX=ffff88806cf35000 RBX=0000000000000001 RCX=ffffffff8450c50e RDX=ffffed100d9e6a01
RSI=0000000000000004 RDI=ffffffff812889a5 RBP=dffffc0000000000 RSP=ffff888008e27e70
R8 =0000000000000000 R9 =ffffed100d9e6a00 R10=ffff88806cf35003 R11=0000000000000001
R12=ffffffff85d3bed0 R13=1ffff110011c4fd3 R14=0000000000000000 R15=0000000000000000
RIP=ffffffff8450d49f 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 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=00007ffc988f0c18 CR3=0000000009636000 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=36313a3130203032206e754a3e36383c XMM01=7365733a646873732878696e755f6d61
XMM02=736f6c63206e6f6973736573203a296e XMM03=5f6d6170203a5d3932325b6468737320
XMM04=6456774875434142334f726f59427469 XMM05=485320415352203a3268737320363832
XMM06=206d6f726620746f6f7220726f662079 XMM07=00000000000000000000000000000000
XMM08=3a677562656420676f6c737973720000 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000