syzkaller login: [   50.634409] BUG: Bad rss-counter state mm:0000000062e16427 type:MM_FILEPAGES val:33
[   50.635575] BUG: Bad rss-counter state mm:0000000062e16427 type:MM_ANONPAGES val:22
[   50.792631] ==================================================================
[   50.793516] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0
[   50.794459] Read of size 8 at addr ffff88800dda4ed8 by task sshd/220
[   50.795232] 
[   50.795518] CPU: 0 PID: 220 Comm: sshd Not tainted 6.4.0-rc7-next-20230619 #1
[   50.796416] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   50.797374] Call Trace:
[   50.797734]  <TASK>
[   50.798021]  dump_stack_lvl+0x91/0xf0
[   50.798519]  print_report+0xcc/0x620
[   50.799002]  ? __virt_addr_valid+0x102/0x340
[   50.799553]  ? vma_interval_tree_remove+0xc75/0xec0
[   50.800168]  ? vma_interval_tree_remove+0xc75/0xec0
[   50.800773]  kasan_report+0xbe/0xf0
[   50.801290]  ? vma_interval_tree_remove+0xc75/0xec0
[   50.801933]  vma_interval_tree_remove+0xc75/0xec0
[   50.802548]  vma_prepare+0xc54/0x11a0
[   50.803035]  __split_vma+0x5af/0x950
[   50.803510]  ? __pfx___split_vma+0x10/0x10
[   50.804045]  ? find_held_lock+0x2c/0x110
[   50.804565]  do_vmi_align_munmap+0x2ba/0x11f0
[   50.805179]  ? lock_is_held_type+0x9f/0x120
[   50.805741]  ? __pfx_do_vmi_align_munmap+0x10/0x10
[   50.806365]  ? mtree_range_walk+0x632/0x900
[   50.806922]  ? mas_walk+0x5c7/0x7c0
[   50.807413]  do_vmi_munmap+0x1f1/0x2b0
[   50.807902]  mmap_region+0x1f9/0x2660
[   50.808400]  ? vm_mmap_pgoff+0x15c/0x3a0
[   50.808918]  ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[   50.809662]  ? __pfx_lock_acquire+0x10/0x10
[   50.810196]  ? __pfx_mmap_region+0x10/0x10
[   50.810719]  ? security_mmap_addr+0x7d/0xa0
[   50.811254]  ? get_unmapped_area+0x1f5/0x3f0
[   50.811795]  do_mmap+0x854/0xf00
[   50.812233]  vm_mmap_pgoff+0x1a6/0x3a0
[   50.812722]  ? __pfx_vm_mmap_pgoff+0x10/0x10
[   50.813290]  ksys_mmap_pgoff+0x3af/0x500
[   50.813807]  do_syscall_64+0x3f/0x90
[   50.814280]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   50.814924] RIP: 0033:0x7fe15f286d82
[   50.815375] 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
[   50.817494] RSP: 002b:00007ffe2446d478 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[   50.818418] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fe15f286d82
[   50.819258] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007fe15e6c0000
[   50.820113] RBP: 00007fe15e6c0000 R08: 0000000000000009 R09: 0000000000001000
[   50.820957] R10: 0000000000000812 R11: 0000000000000206 R12: 000056338bb1fec0
[   50.821811] R13: 00007ffe2446d490 R14: 00007ffe2446d4c0 R15: 00007ffe2446d820
[   50.822665]  </TASK>
[   50.822958] 
[   50.823174] Allocated by task 213:
[   50.823605]  kasan_save_stack+0x22/0x50
[   50.824108]  kasan_set_track+0x25/0x30
[   50.824597]  __kasan_slab_alloc+0x59/0x70
[   50.825117]  kmem_cache_alloc+0x16b/0x370
[   50.825633]  vm_area_dup+0x20/0x160
[   50.826091]  __split_vma+0x170/0x950
[   50.826560]  split_vma+0xc6/0x110
[   50.826993]  mprotect_fixup+0x8d2/0xb30
[   50.827494]  do_mprotect_pkey+0x87e/0xd40
[   50.828012]  __x64_sys_mprotect+0x78/0xc0
[   50.828542]  do_syscall_64+0x3f/0x90
[   50.829016]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   50.829679] 
[   50.829893] Freed by task 13:
[   50.830276]  kasan_save_stack+0x22/0x50
[   50.830780]  kasan_set_track+0x25/0x30
[   50.831272]  kasan_save_free_info+0x2b/0x50
[   50.831808]  __kasan_slab_free+0x10a/0x190
[   50.832336]  kmem_cache_free+0x10d/0x4d0
[   50.832840]  rcu_core+0x8c8/0x2860
[   50.833282]  __do_softirq+0x1b7/0x7d4
[   50.833768] 
[   50.833983] Last potentially related work creation:
[   50.834565]  kasan_save_stack+0x22/0x50
[   50.835066]  __kasan_record_aux_stack+0x8e/0xa0
[   50.835632]  __call_rcu_common.constprop.0+0x6a/0xb90
[   50.836266]  remove_vma+0x139/0x170
[   50.836715]  do_vmi_align_munmap+0xd4a/0x11f0
[   50.837264]  do_vmi_munmap+0x1f1/0x2b0
[   50.837763]  __vm_munmap+0x138/0x3a0
[   50.838228]  __x64_sys_munmap+0x59/0x80
[   50.838722]  do_syscall_64+0x3f/0x90
[   50.839189]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   50.839826] 
[   50.840043] Second to last potentially related work creation:
[   50.840725]  kasan_save_stack+0x22/0x50
[   50.841229]  __kasan_record_aux_stack+0x8e/0xa0
[   50.841805]  __call_rcu_common.constprop.0+0x6a/0xb90
[   50.842452]  remove_vma+0x139/0x170
[   50.842900]  do_vmi_align_munmap+0xd4a/0x11f0
[   50.843459]  do_vmi_munmap+0x1f1/0x2b0
[   50.843941]  mmap_region+0x1f9/0x2660
[   50.844416]  do_mmap+0x854/0xf00
[   50.844846]  vm_mmap_pgoff+0x1a6/0x3a0
[   50.845337]  ksys_mmap_pgoff+0x3af/0x500
[   50.845860]  do_syscall_64+0x3f/0x90
[   50.846335]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   50.846966] 
[   50.847180] The buggy address belongs to the object at ffff88800dda4e80
[   50.847180]  which belongs to the cache vm_area_struct of size 168
[   50.848640] The buggy address is located 88 bytes inside of
[   50.848640]  freed 168-byte region [ffff88800dda4e80, ffff88800dda4f28)
[   50.850043] 
[   50.850258] The buggy address belongs to the physical page:
[   50.850916] page:00000000cbfc023b refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xdda4
[   50.851991] memcg:ffff88800e22a401
[   50.852414] flags: 0x100000000000200(slab|node=0|zone=1)
[   50.853049] page_type: 0xffffffff()
[   50.853493] raw: 0100000000000200 ffff88800879fc80 ffffea0000380f00 dead000000000004
[   50.854413] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff88800e22a401
[   50.855308] page dumped because: kasan: bad access detected
[   50.855964] 
[   50.856177] Memory state around the buggy address:
[   50.856751]  ffff88800dda4d80: fc fc fc 00 00 00 00 00 00 00 00 00 00 00 00 00
[   50.857623]  ffff88800dda4e00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
[   50.858480] >ffff88800dda4e80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   50.859330]                                                     ^
[   50.860057]  ffff88800dda4f00: fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc
[   50.860908]  ffff88800dda4f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   50.861763] ==================================================================
[   50.862733] Disabling lock debugging due to kernel taint
[   52.610282] BUG: Bad rss-counter state mm:00000000f8d4ee85 type:MM_FILEPAGES val:33
[   52.610979] BUG: Bad rss-counter state mm:00000000f8d4ee85 type:MM_ANONPAGES val:22
[   53.034594] BUG: Bad rss-counter state mm:0000000095808de7 type:MM_FILEPAGES val:33
[   53.036402] BUG: Bad rss-counter state mm:0000000095808de7 type:MM_ANONPAGES val:22
Warning: Permanently added '[localhost]:63708' (ECDSA) to the list of known hosts.
2023/06/20 01:16:58 fuzzer started
2023/06/20 01:16:58 dialing manager at localhost:44161
2023/06/20 01:16:58 checking machine...
2023/06/20 01:16:58 checking revisions...
[   53.700352] kmemleak: Automatic memory scanning thread ended
2023/06/20 01:16:58 testing simple program...
[   53.744439] cgroup: Unknown subsys name 'net'
[   53.789531] cgroup: Unknown subsys name 'rlimit'
[   56.375725] general protection fault, probably for non-canonical address 0xe0921c2ca0000017: 0000 [#1] PREEMPT SMP KASAN NOPTI
[   56.377205] KASAN: maybe wild-memory-access in range [0x04910165000000b8-0x04910165000000bf]
[   56.378293] CPU: 1 PID: 265 Comm: cron Tainted: G    B              6.4.0-rc7-next-20230619 #1
[   56.379397] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   56.380435] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0
[   56.381146] 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
[   56.383451] RSP: 0018:ffff88801818f8a8 EFLAGS: 00010216
[   56.384138] RAX: ffff888018f42d70 RBX: ffff88800dd48210 RCX: ffffffff844ce9f9
[   56.385051] RDX: 0092202ca0000017 RSI: 0000000000000008 RDI: ffff888016ffd008
[   56.385972] RBP: ffff888015bdd340 R08: ffff888016ffd008 R09: 0000000000000000
[   56.386879] R10: 0000000000000000 R11: 00000000000b6996 R12: ffff888016ffd000
[   56.387792] R13: dffffc0000000000 R14: 04910165000000b9 R15: ffffffff816e61c0
[   56.388703] FS:  00007f50f41da840(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[   56.389734] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   56.390485] CR2: 00007f50f3db1000 CR3: 000000000ea48000 CR4: 0000000000350ee0
[   56.391398] Call Trace:
[   56.391737]  <TASK>
[   56.392042]  ? die_addr+0x3c/0xa0
[   56.392517]  ? exc_general_protection+0x125/0x220
[   56.393166]  ? asm_exc_general_protection+0x26/0x30
[   56.393842]  ? __pfx_vma_interval_tree_augment_rotate+0x10/0x10
[   56.394619]  ? __rb_insert_augmented+0x5e9/0x8b0
[   56.395245]  ? __rb_insert_augmented+0x9d/0x8b0
[   56.395870]  ? __rb_insert_augmented+0x5e9/0x8b0
[   56.396492]  vma_prepare+0xa1a/0x11a0
[   56.396999]  __split_vma+0x5af/0x950
[   56.397498]  ? __pfx___split_vma+0x10/0x10
[   56.398064]  ? lock_acquire+0x434/0x4c0
[   56.398595]  do_vmi_align_munmap+0x361/0x11f0
[   56.399191]  ? __pfx_do_vmi_align_munmap+0x10/0x10
[   56.399827]  ? mtree_range_walk+0x632/0x900
[   56.400413]  ? mas_walk+0x5c7/0x7c0
[   56.400913]  do_vmi_munmap+0x1f1/0x2b0
[   56.401432]  mmap_region+0x1f9/0x2660
[   56.401961]  ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[   56.402714]  ? __pfx_lock_acquire+0x10/0x10
[   56.403273]  ? __pfx_mmap_region+0x10/0x10
[   56.403828]  ? security_mmap_addr+0x7d/0xa0
[   56.404381]  ? get_unmapped_area+0x1f5/0x3f0
[   56.404966]  do_mmap+0x854/0xf00
[   56.405429]  vm_mmap_pgoff+0x1a6/0x3a0
[   56.405959]  ? __pfx_vm_mmap_pgoff+0x10/0x10
[   56.406544]  ksys_mmap_pgoff+0x3af/0x500
[   56.407085]  do_syscall_64+0x3f/0x90
[   56.407586]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   56.408256] RIP: 0033:0x7f50f44fcd82
[   56.408734] 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
[   56.410961] RSP: 002b:00007ffc808a3a38 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[   56.411903] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f50f44fcd82
[   56.412778] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f50f3dac000
[   56.413647] RBP: 00007f50f3dac000 R08: 0000000000000008 R09: 0000000000001000
[   56.414545] R10: 0000000000000812 R11: 0000000000000206 R12: 000055e47760abf0
[   56.415423] R13: 00007ffc808a3a50 R14: 00007ffc808a3a80 R15: 00007ffc808a3de0
[   56.416321]  </TASK>
[   56.416623] Modules linked in:
[   56.417225] ---[ end trace 0000000000000000 ]---
[   56.417843] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0
[   56.418654] 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
[   56.421019] RSP: 0018:ffff88801818f8a8 EFLAGS: 00010216
[   56.421699] RAX: ffff888018f42d70 RBX: ffff88800dd48210 RCX: ffffffff844ce9f9
[   56.422611] RDX: 0092202ca0000017 RSI: 0000000000000008 RDI: ffff888016ffd008
[   56.423522] RBP: ffff888015bdd340 R08: ffff888016ffd008 R09: 0000000000000000
[   56.424429] R10: 0000000000000000 R11: 00000000000b6996 R12: ffff888016ffd000
[   56.425340] R13: dffffc0000000000 R14: 04910165000000b9 R15: ffffffff816e61c0
[   56.426265] FS:  00007f50f41da840(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[   56.427293] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   56.428043] CR2: 00007f50f3db1000 CR3: 000000000ea48000 CR4: 0000000000350ee0
executing program
executing program
executing program

VM DIAGNOSIS:
01:16:31  Registers:
info registers vcpu 0
RAX=ffffed1002869ea2 RBX=ffff88801434f508 RCX=0000000000000250 RDX=0000000000039500
RSI=0000000000039500 RDI=ffff88806cf39660 RBP=0000000000000001 RSP=ffff88801434f420
R8 =dffffc0000000000 R9 =0000000000000000 R10=ffff888008deb180 R11=000000000002a800
R12=ffff88806cf39500 R13=0000000000000001 R14=0000000000000000 R15=ffff88806cf00000
RIP=ffffffff81269e47 RFL=00000046 [---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 00007f64bffe5900 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=00007f64bf47c410 CR3=000000000c686000 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=d994116c780847803a46dd83a5efa4e3
XMM02=2c67c8bc2e329bc30000000000121050 XMM03=fb795ef6d65770560000000000123e28
XMM04=70dc2ab7fd0a1fed00000000000ae988 XMM05=b34ea8bee362b16300000000001351d0
XMM06=4fda316b135da52b0000000000134940 XMM07=e042d86d42eb936e00000000001240a8
XMM08=eb3b603f87ac71e300000000001210b0 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000
info registers vcpu 1
RAX=dffffc0000000000 RBX=0000000000000001 RCX=ffffffff86137736 RDX=0000000000000008
RSI=ffff888016c77e10 RDI=ffff888016c77aa8 RBP=ffff888016c77b00 RSP=ffff888016c77a18
R8 =0000000000000001 R9 =ffff888016c77ae8 R10=0000000000038001 R11=0000000000020de7
R12=ffff888016c77b08 R13=ffff888016c77af0 R14=ffff888016c77e10 R15=ffff888016c77aa8
RIP=ffffffff81130400 RFL=00000283 [--S---C] 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 00007fb8d4579900 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=00007fb8d4945328 CR3=0000000009068000 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=00000000000000000000000000000000 XMM01=652022746f6f72223d74636361207469
XMM02=3d6c616e696d72657420322e322e302e XMM03=3d656d616e74736f682022646873732f
XMM04=40404040404040404040404040404040 XMM05=5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a
XMM06=20202020202020202020202020202020 XMM07=00000000000000000000000000000000
XMM08=652075253d64692073253d706f000000 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000