syzkaller login: [   67.041347] BUG: Bad rss-counter state mm:00000000a46c3d7b type:MM_FILEPAGES val:33
[   67.042596] BUG: Bad rss-counter state mm:00000000a46c3d7b type:MM_ANONPAGES val:22
[   67.080216] ==================================================================
[   67.081476] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0
[   67.082630] Read of size 8 at addr ffff888019d59ed8 by task sshd/219
[   67.083581] 
[   67.083852] CPU: 1 PID: 219 Comm: sshd Not tainted 6.4.0-rc7-next-20230619 #1
[   67.084923] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   67.086126] Call Trace:
[   67.086522]  <TASK>
[   67.086874]  dump_stack_lvl+0x91/0xf0
[   67.087470]  print_report+0xcc/0x620
[   67.088045]  ? __virt_addr_valid+0x102/0x340
[   67.088724]  ? vma_interval_tree_remove+0xc75/0xec0
[   67.089480]  ? vma_interval_tree_remove+0xc75/0xec0
[   67.090234]  kasan_report+0xbe/0xf0
[   67.090839]  ? vma_interval_tree_remove+0xc75/0xec0
[   67.091604]  vma_interval_tree_remove+0xc75/0xec0
[   67.092350]  vma_prepare+0xc54/0x11a0
[   67.092933]  __split_vma+0x5af/0x950
[   67.093515]  ? __pfx___split_vma+0x10/0x10
[   67.094165]  ? find_held_lock+0x2c/0x110
[   67.094810]  do_vmi_align_munmap+0x2ba/0x11f0
[   67.095508]  ? lock_is_held_type+0x9f/0x120
[   67.096168]  ? __pfx_do_vmi_align_munmap+0x10/0x10
[   67.096920]  ? mtree_range_walk+0x632/0x900
[   67.097593]  ? mas_walk+0x5c7/0x7c0
[   67.098177]  do_vmi_munmap+0x1f1/0x2b0
[   67.098810]  mmap_region+0x1f9/0x2660
[   67.099403]  ? vm_mmap_pgoff+0x15c/0x3a0
[   67.100023]  ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[   67.100898]  ? __pfx_lock_acquire+0x10/0x10
[   67.101555]  ? __pfx_mmap_region+0x10/0x10
[   67.102193]  ? security_mmap_addr+0x7d/0xa0
[   67.102859]  ? get_unmapped_area+0x1f5/0x3f0
[   67.103538]  do_mmap+0x854/0xf00
[   67.104077]  vm_mmap_pgoff+0x1a6/0x3a0
[   67.104675]  ? __pfx_vm_mmap_pgoff+0x10/0x10
[   67.105370]  ksys_mmap_pgoff+0x3af/0x500
[   67.106173]  do_syscall_64+0x3f/0x90
[   67.106785]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   67.107580] RIP: 0033:0x7f60fb760d82
[   67.108159] 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
[   67.110755] RSP: 002b:00007ffd2e5f5ab8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[   67.111703] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f60fb760d82
[   67.112549] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f60fab9a000
[   67.113392] RBP: 00007f60fab9a000 R08: 0000000000000009 R09: 0000000000001000
[   67.114241] R10: 0000000000000812 R11: 0000000000000206 R12: 0000559a02f64b20
[   67.115103] R13: 00007ffd2e5f5ad0 R14: 00007ffd2e5f5b00 R15: 00007ffd2e5f5e60
[   67.115994]  </TASK>
[   67.116290] 
[   67.116499] Allocated by task 212:
[   67.116924]  kasan_save_stack+0x22/0x50
[   67.117437]  kasan_set_track+0x25/0x30
[   67.117927]  __kasan_slab_alloc+0x59/0x70
[   67.118447]  kmem_cache_alloc+0x16b/0x370
[   67.118984]  vm_area_dup+0x20/0x160
[   67.119477]  __split_vma+0x170/0x950
[   67.119954]  split_vma+0xc6/0x110
[   67.120430]  mprotect_fixup+0x8d2/0xb30
[   67.120971]  do_mprotect_pkey+0x87e/0xd40
[   67.121501]  __x64_sys_mprotect+0x78/0xc0
[   67.122008]  do_syscall_64+0x3f/0x90
[   67.122480]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   67.123130] 
[   67.123338] Freed by task 212:
[   67.123729]  kasan_save_stack+0x22/0x50
[   67.124224]  kasan_set_track+0x25/0x30
[   67.124870]  kasan_save_free_info+0x2b/0x50
[   67.125624]  __kasan_slab_free+0x10a/0x190
[   67.126255]  kmem_cache_free+0x10d/0x4d0
[   67.126972]  rcu_core+0x8c8/0x2860
[   67.127482]  __do_softirq+0x1b7/0x7d4
[   67.128010] 
[   67.128308] Last potentially related work creation:
[   67.129112]  kasan_save_stack+0x22/0x50
[   67.129672]  __kasan_record_aux_stack+0x8e/0xa0
[   67.130356]  __call_rcu_common.constprop.0+0x6a/0xb90
[   67.131236]  remove_vma+0x139/0x170
[   67.131716]  do_vmi_align_munmap+0xd4a/0x11f0
[   67.132446]  do_vmi_munmap+0x1f1/0x2b0
[   67.133114]  __vm_munmap+0x138/0x3a0
[   67.133631]  __x64_sys_munmap+0x59/0x80
[   67.134233]  do_syscall_64+0x3f/0x90
[   67.134913]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   67.135603] 
[   67.135817] The buggy address belongs to the object at ffff888019d59e80
[   67.135817]  which belongs to the cache vm_area_struct of size 168
[   67.137712] The buggy address is located 88 bytes inside of
[   67.137712]  freed 168-byte region [ffff888019d59e80, ffff888019d59f28)
[   67.139427] 
[   67.139701] The buggy address belongs to the physical page:
[   67.140607] page:00000000a6b1364d refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x19d59
[   67.141860] memcg:ffff8880102b9501
[   67.142450] flags: 0x100000000000200(slab|node=0|zone=1)
[   67.143168] page_type: 0xffffffff()
[   67.143641] raw: 0100000000000200 ffff88800879fc80 dead000000000122 0000000000000000
[   67.144818] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff8880102b9501
[   67.145807] page dumped because: kasan: bad access detected
[   67.146737] 
[   67.147035] Memory state around the buggy address:
[   67.147670]  ffff888019d59d80: fc fc fc 00 00 00 00 00 00 00 00 00 00 00 00 00
[   67.148764]  ffff888019d59e00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
[   67.149874] >ffff888019d59e80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   67.150944]                                                     ^
[   67.151662]  ffff888019d59f00: fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc
[   67.152575]  ffff888019d59f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   67.153416] ==================================================================
[   67.154638] Disabling lock debugging due to kernel taint
[   69.437211] BUG: Bad rss-counter state mm:00000000d4c4ace1 type:MM_FILEPAGES val:33
[   69.438342] BUG: Bad rss-counter state mm:00000000d4c4ace1 type:MM_ANONPAGES val:22
[   69.844585] BUG: Bad rss-counter state mm:000000007a5444c6 type:MM_FILEPAGES val:33
[   69.845823] BUG: Bad rss-counter state mm:000000007a5444c6 type:MM_ANONPAGES val:22
Warning: Permanently added '[localhost]:20063' (ECDSA) to the list of known hosts.
2023/06/20 07:16:55 fuzzer started
2023/06/20 07:16:55 dialing manager at localhost:44161
2023/06/20 07:16:55 checking machine...
2023/06/20 07:16:55 checking revisions...
[   70.543055] kmemleak: Automatic memory scanning thread ended
2023/06/20 07:16:55 testing simple program...
[   70.589881] cgroup: Unknown subsys name 'net'
[   70.627393] cgroup: Unknown subsys name 'rlimit'
executing program
executing program
[   76.741635] general protection fault, probably for non-canonical address 0xe0827c012000001d: 0000 [#1] PREEMPT SMP KASAN NOPTI
[   76.743141] KASAN: maybe wild-memory-access in range [0x04140009000000e8-0x04140009000000ef]
[   76.744206] CPU: 0 PID: 265 Comm: cron Tainted: G    B              6.4.0-rc7-next-20230619 #1
[   76.745298] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   76.746335] RIP: 0010:vma_interval_tree_insert+0x114/0x400
[   76.747083] 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
[   76.749361] RSP: 0018:ffff8880103278a8 EFLAGS: 00010217
[   76.750049] RAX: 008280012000001d RBX: 04140009000000d4 RCX: 0000000000000000
[   76.750955] RDX: ffff88800ff19b40 RSI: ffffffff816e6af9 RDI: 04140009000000ec
[   76.751902] RBP: dffffc0000000000 R08: 0000000000000006 R09: 0000000000000002
[   76.752863] R10: 0000000000000000 R11: 00000000000b6996 R12: 0000000000000004
[   76.753825] R13: 0000000000000002 R14: ffff8880167a4910 R15: ffff888019d59660
[   76.754807] FS:  00007f97aa562840(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[   76.755890] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.756683] CR2: 000055f4613842e8 CR3: 0000000016498000 CR4: 0000000000350ef0
[   76.757638] Call Trace:
[   76.757995]  <TASK>
[   76.758313]  ? die_addr+0x3c/0xa0
[   76.758819]  ? exc_general_protection+0x125/0x220
[   76.759507]  ? asm_exc_general_protection+0x26/0x30
[   76.760193]  ? vma_interval_tree_insert+0x109/0x400
[   76.760868]  ? vma_interval_tree_insert+0x114/0x400
[   76.761536]  ? vma_interval_tree_insert+0x109/0x400
[   76.762219]  vma_prepare+0xa1a/0x11a0
[   76.762752]  __split_vma+0x5af/0x950
[   76.763268]  ? __pfx___split_vma+0x10/0x10
[   76.763847]  ? lock_acquire+0x434/0x4c0
[   76.764391]  do_vmi_align_munmap+0x361/0x11f0
[   76.765009]  ? __pfx_do_vmi_align_munmap+0x10/0x10
[   76.765672]  ? mtree_range_walk+0x632/0x900
[   76.766270]  ? mas_walk+0x5c7/0x7c0
[   76.766803]  do_vmi_munmap+0x1f1/0x2b0
[   76.767341]  mmap_region+0x1f9/0x2660
[   76.767869]  ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[   76.768645]  ? __pfx_lock_acquire+0x10/0x10
[   76.769221]  ? __pfx_mmap_region+0x10/0x10
[   76.769810]  ? security_mmap_addr+0x7d/0xa0
[   76.770387]  ? get_unmapped_area+0x1f5/0x3f0
[   76.770999]  do_mmap+0x854/0xf00
[   76.771477]  vm_mmap_pgoff+0x1a6/0x3a0
[   76.772015]  ? __pfx_vm_mmap_pgoff+0x10/0x10
[   76.772633]  ksys_mmap_pgoff+0x3af/0x500
[   76.773180]  do_syscall_64+0x3f/0x90
[   76.773706]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   76.774409] RIP: 0033:0x7f97aa884d82
[   76.774914] 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
[   76.777243] RSP: 002b:00007ffd6a3057e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[   76.778236] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f97aa884d82
[   76.779181] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f97aa13e000
[   76.780105] RBP: 00007f97aa13e000 R08: 0000000000000009 R09: 0000000000001000
[   76.781028] R10: 0000000000000812 R11: 0000000000000206 R12: 000055f461383e00
[   76.781953] R13: 00007ffd6a305800 R14: 00007ffd6a305830 R15: 00007ffd6a305b90
[   76.782900]  </TASK>
[   76.783221] Modules linked in:
[   76.783830] ---[ end trace 0000000000000000 ]---
[   76.784670] RIP: 0010:vma_interval_tree_insert+0x114/0x400
[   76.785427] 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
[   76.787948] RSP: 0018:ffff8880103278a8 EFLAGS: 00010217
[   76.788869] RAX: 008280012000001d RBX: 04140009000000d4 RCX: 0000000000000000
[   76.790008] RDX: ffff88800ff19b40 RSI: ffffffff816e6af9 RDI: 04140009000000ec
[   76.791151] RBP: dffffc0000000000 R08: 0000000000000006 R09: 0000000000000002
[   76.792217] R10: 0000000000000000 R11: 00000000000b6996 R12: 0000000000000004
[   76.793335] R13: 0000000000000002 R14: ffff8880167a4910 R15: ffff888019d59660
[   76.794424] FS:  00007f97aa562840(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[   76.795730] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.796504] CR2: 000055f4613842e8 CR3: 0000000016498000 CR4: 0000000000350ef0
executing program

VM DIAGNOSIS:
07:16:48  Registers:
info registers vcpu 0
RAX=dffffc0000000000 RBX=ffff888016fb0000 RCX=0000000000000000 RDX=0000000000000000
RSI=ffffffff814c84fa RDI=ffff888016fb03f4 RBP=ffff888016fb0000 RSP=ffff8880146a75e0
R8 =0000000000000005 R9 =0000000000000000 R10=0000000000000000 R11=00000000000b6996
R12=ffff888016fb0000 R13=0000000000000000 R14=ffffffff85652a88 R15=0000000000000001
RIP=ffffffff8137454d RFL=00000217 [----APC] 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 00007faded441900 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=00007fffaa534000 CR3=0000000019c50000 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=635f6e6f69737365733a4d41503d706f XMM01=6f6c5f6d61702c78756e696c65735f6d
XMM02=61702c74696d7265705f6d61702c7469 XMM03=655f6d61702c7374696d696c5f6d6170
XMM04=3d6c616e696d72657420322e322e302e XMM05=3d656d616e74736f682022646873732f
XMM06=746f6f72223d746363612078756e696c XMM07=6e655f6d61702c7374696d696c5f6d61
XMM08=652075253d64692073253d706f000000 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 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=ffff888008c58400
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=00007fcb002ccca0 CR3=0000000018f18000 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=2034353a36313a3730203032206e754a XMM01=73732878696e755f6d6170203a5d3832
XMM02=65736f6c63206e6f6973736573203a29 XMM03=755f6d6170203a5d3832325b64687373
XMM04=69662068637573206f4e203a656c6163 XMM05=3a656c696620766e65206e65706f206f
XMM06=65733a6468737328766e655f6d617020 XMM07=6b7a79732034353a36313a3730203032
XMM08=3d656e696c646d632022656369767265 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000