syzkaller login: [   33.207095] BUG: Bad rss-counter state mm:00000000d5db5e1e type:MM_FILEPAGES val:33
[   33.208474] BUG: Bad rss-counter state mm:00000000d5db5e1e type:MM_ANONPAGES val:22
[   33.358185] ==================================================================
[   33.359152] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0
[   33.360097] Read of size 8 at addr ffff88800dca9798 by task sshd/221
[   33.360987] 
[   33.361204] CPU: 0 PID: 221 Comm: sshd Not tainted 6.4.0-rc7-next-20230619 #1
[   33.362060] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   33.363033] Call Trace:
[   33.363353]  <TASK>
[   33.363634]  dump_stack_lvl+0x91/0xf0
[   33.364121]  print_report+0xcc/0x620
[   33.364596]  ? __virt_addr_valid+0x102/0x340
[   33.365143]  ? vma_interval_tree_remove+0xc75/0xec0
[   33.365753]  ? vma_interval_tree_remove+0xc75/0xec0
[   33.366362]  kasan_report+0xbe/0xf0
[   33.366851]  ? vma_interval_tree_remove+0xc75/0xec0
[   33.367470]  vma_interval_tree_remove+0xc75/0xec0
[   33.368063]  vma_prepare+0xc54/0x11a0
[   33.368533]  __split_vma+0x5af/0x950
[   33.369003]  ? __pfx___split_vma+0x10/0x10
[   33.369532]  ? find_held_lock+0x2c/0x110
[   33.370050]  do_vmi_align_munmap+0x2ba/0x11f0
[   33.370634]  ? lock_is_held_type+0x9f/0x120
[   33.371173]  ? __pfx_do_vmi_align_munmap+0x10/0x10
[   33.371780]  ? mtree_range_walk+0x632/0x900
[   33.372332]  ? mas_walk+0x5c7/0x7c0
[   33.372812]  do_vmi_munmap+0x1f1/0x2b0
[   33.373309]  mmap_region+0x1f9/0x2660
[   33.373791]  ? vm_mmap_pgoff+0x15c/0x3a0
[   33.374300]  ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[   33.375018]  ? __pfx_lock_acquire+0x10/0x10
[   33.375546]  ? __pfx_mmap_region+0x10/0x10
[   33.376072]  ? security_mmap_addr+0x7d/0xa0
[   33.376600]  ? get_unmapped_area+0x1f5/0x3f0
[   33.377152]  do_mmap+0x854/0xf00
[   33.377589]  vm_mmap_pgoff+0x1a6/0x3a0
[   33.378082]  ? __pfx_vm_mmap_pgoff+0x10/0x10
[   33.378662]  ksys_mmap_pgoff+0x3af/0x500
[   33.379164]  do_syscall_64+0x3f/0x90
[   33.379643]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   33.380284] RIP: 0033:0x7f0638a67d82
[   33.380744] 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
[   33.382906] RSP: 002b:00007ffd30c97328 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[   33.383806] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f0638a67d82
[   33.384659] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f0637ea1000
[   33.385514] RBP: 00007f0637ea1000 R08: 0000000000000009 R09: 0000000000001000
[   33.386371] R10: 0000000000000812 R11: 0000000000000206 R12: 0000561775254f60
[   33.387218] R13: 00007ffd30c97340 R14: 00007ffd30c97370 R15: 00007ffd30c976d0
[   33.388083]  </TASK>
[   33.388370] 
[   33.388582] Allocated by task 214:
[   33.389009]  kasan_save_stack+0x22/0x50
[   33.389514]  kasan_set_track+0x25/0x30
[   33.390003]  __kasan_slab_alloc+0x59/0x70
[   33.390519]  kmem_cache_alloc+0x16b/0x370
[   33.391054]  vm_area_dup+0x20/0x160
[   33.391503]  __split_vma+0x170/0x950
[   33.391969]  split_vma+0xc6/0x110
[   33.392415]  mprotect_fixup+0x8d2/0xb30
[   33.392909]  do_mprotect_pkey+0x87e/0xd40
[   33.393428]  __x64_sys_mprotect+0x78/0xc0
[   33.393955]  do_syscall_64+0x3f/0x90
[   33.394421]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   33.395068] 
[   33.395285] Freed by task 214:
[   33.395672]  kasan_save_stack+0x22/0x50
[   33.396173]  kasan_set_track+0x25/0x30
[   33.396663]  kasan_save_free_info+0x2b/0x50
[   33.397192]  __kasan_slab_free+0x10a/0x190
[   33.397719]  kmem_cache_free+0x10d/0x4d0
[   33.398227]  rcu_core+0x8c8/0x2860
[   33.398689]  __do_softirq+0x1b7/0x7d4
[   33.399168] 
[   33.399387] Last potentially related work creation:
[   33.399973]  kasan_save_stack+0x22/0x50
[   33.400480]  __kasan_record_aux_stack+0x8e/0xa0
[   33.401063]  __call_rcu_common.constprop.0+0x6a/0xb90
[   33.401707]  remove_vma+0x139/0x170
[   33.402158]  do_vmi_align_munmap+0xd4a/0x11f0
[   33.402718]  do_vmi_munmap+0x1f1/0x2b0
[   33.403204]  __vm_munmap+0x138/0x3a0
[   33.403666]  __x64_sys_munmap+0x59/0x80
[   33.404157]  do_syscall_64+0x3f/0x90
[   33.404630]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   33.405279] 
[   33.405491] The buggy address belongs to the object at ffff88800dca9740
[   33.405491]  which belongs to the cache vm_area_struct of size 168
[   33.406943] The buggy address is located 88 bytes inside of
[   33.406943]  freed 168-byte region [ffff88800dca9740, ffff88800dca97e8)
[   33.408327] 
[   33.408541] The buggy address belongs to the physical page:
[   33.409191] page:00000000cf331c59 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xdca9
[   33.410262] memcg:ffff88800dcb9001
[   33.410706] flags: 0x100000000000200(slab|node=0|zone=1)
[   33.411353] page_type: 0xffffffff()
[   33.411797] raw: 0100000000000200 ffff88800879fc80 ffffea00003a3a00 dead000000000004
[   33.412703] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff88800dcb9001
[   33.413600] page dumped because: kasan: bad access detected
[   33.414259] 
[   33.414472] Memory state around the buggy address:
[   33.415066]  ffff88800dca9680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   33.415924]  ffff88800dca9700: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
[   33.416770] >ffff88800dca9780: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc
[   33.417623]                             ^
[   33.418116]  ffff88800dca9800: fc fc fc fc fc 00 00 00 00 00 00 00 00 00 00 00
[   33.418980]  ffff88800dca9880: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc
[   33.419893] ==================================================================
[   33.421057] Disabling lock debugging due to kernel taint
[   35.950609] BUG: Bad rss-counter state mm:00000000c5810c7d type:MM_FILEPAGES val:33
[   35.951605] BUG: Bad rss-counter state mm:00000000c5810c7d type:MM_ANONPAGES val:22
[   36.475146] BUG: Bad rss-counter state mm:00000000cbb58467 type:MM_FILEPAGES val:33
[   36.476291] BUG: Bad rss-counter state mm:00000000cbb58467 type:MM_ANONPAGES val:22
Warning: Permanently added '[localhost]:33567' (ECDSA) to the list of known hosts.
2023/06/20 06:24:59 fuzzer started
2023/06/20 06:24:59 dialing manager at localhost:44161
2023/06/20 06:24:59 checking machine...
2023/06/20 06:24:59 checking revisions...
[   37.094525] kmemleak: Automatic memory scanning thread ended
2023/06/20 06:24:59 testing simple program...
[   37.154542] cgroup: Unknown subsys name 'net'
[   37.207520] cgroup: Unknown subsys name 'rlimit'
[   38.782811] general protection fault, probably for non-canonical address 0xe0c61c2c80000014: 0000 [#1] PREEMPT SMP KASAN NOPTI
[   38.784143] KASAN: maybe wild-memory-access in range [0x06310164000000a0-0x06310164000000a7]
[   38.785074] CPU: 0 PID: 265 Comm: cron Tainted: G    B              6.4.0-rc7-next-20230619 #1
[   38.786031] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   38.786962] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0
[   38.787584] 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
[   38.789584] RSP: 0018:ffff88801921f8a8 EFLAGS: 00010217
[   38.790188] RAX: ffff8880197eb758 RBX: ffff88800fcc05b0 RCX: ffffffff844ce9f9
[   38.791000] RDX: 00c6202c80000014 RSI: 0000000000000008 RDI: ffff888016a91008
[   38.791792] RBP: ffff88800fe56f00 R08: ffff888016a91008 R09: 0000000000000000
[   38.792594] R10: 0000000000000000 R11: 00000000000b6996 R12: ffff888016a91000
[   38.793421] R13: dffffc0000000000 R14: 06310164000000a7 R15: ffffffff816e61c0
[   38.794256] FS:  00007f1e4bf24840(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[   38.795215] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   38.795893] CR2: 0000563b5d09e2e8 CR3: 000000000cae2000 CR4: 0000000000350ef0
[   38.796710] Call Trace:
[   38.797019]  <TASK>
[   38.797293]  ? die_addr+0x3c/0xa0
[   38.797721]  ? exc_general_protection+0x125/0x220
[   38.798319]  ? asm_exc_general_protection+0x26/0x30
[   38.798953]  ? __pfx_vma_interval_tree_augment_rotate+0x10/0x10
[   38.799659]  ? __rb_insert_augmented+0x5e9/0x8b0
[   38.800232]  ? __rb_insert_augmented+0x9d/0x8b0
[   38.800801]  ? __rb_insert_augmented+0x5e9/0x8b0
[   38.801371]  vma_prepare+0xa1a/0x11a0
[   38.801841]  __split_vma+0x5af/0x950
[   38.802308]  ? __pfx___split_vma+0x10/0x10
[   38.802879]  ? lock_acquire+0x434/0x4c0
[   38.803368]  do_vmi_align_munmap+0x361/0x11f0
[   38.803927]  ? __pfx_do_vmi_align_munmap+0x10/0x10
[   38.804513]  ? mtree_range_walk+0x632/0x900
[   38.805046]  ? mas_walk+0x5c7/0x7c0
[   38.805505]  do_vmi_munmap+0x1f1/0x2b0
[   38.805990]  mmap_region+0x1f9/0x2660
[   38.806456]  ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[   38.807166]  ? __pfx_lock_acquire+0x10/0x10
[   38.807693]  ? __pfx_mmap_region+0x10/0x10
[   38.808195]  ? security_mmap_addr+0x7d/0xa0
[   38.808701]  ? get_unmapped_area+0x1f5/0x3f0
[   38.809240]  do_mmap+0x854/0xf00
[   38.809667]  vm_mmap_pgoff+0x1a6/0x3a0
[   38.810162]  ? __pfx_vm_mmap_pgoff+0x10/0x10
[   38.810716]  ksys_mmap_pgoff+0x3af/0x500
[   38.811222]  do_syscall_64+0x3f/0x90
[   38.811686]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   38.812314] RIP: 0033:0x7f1e4c246d82
[   38.812758] 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
[   38.814812] RSP: 002b:00007ffe76a9a5e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[   38.815698] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f1e4c246d82
[   38.816533] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f1e4bb00000
[   38.817348] RBP: 00007f1e4bb00000 R08: 0000000000000009 R09: 0000000000001000
[   38.818167] R10: 0000000000000812 R11: 0000000000000206 R12: 0000563b5d09de00
[   38.819003] R13: 00007ffe76a9a600 R14: 00007ffe76a9a630 R15: 00007ffe76a9a990
[   38.819840]  </TASK>
[   38.820129] Modules linked in:
[   38.820638] ---[ end trace 0000000000000000 ]---
[   38.821217] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0
[   38.821849] 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
[   38.823968] RSP: 0018:ffff88801921f8a8 EFLAGS: 00010217
[   38.824602] RAX: ffff8880197eb758 RBX: ffff88800fcc05b0 RCX: ffffffff844ce9f9
[   38.825453] RDX: 00c6202c80000014 RSI: 0000000000000008 RDI: ffff888016a91008
[   38.826309] RBP: ffff88800fe56f00 R08: ffff888016a91008 R09: 0000000000000000
[   38.827190] R10: 0000000000000000 R11: 00000000000b6996 R12: ffff888016a91000
[   38.828037] R13: dffffc0000000000 R14: 06310164000000a7 R15: ffffffff816e61c0
[   38.828873] FS:  00007f1e4bf24840(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[   38.829819] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   38.830526] CR2: 0000563b5d09e2e8 CR3: 000000000cae2000 CR4: 0000000000350ef0
executing program
executing program
executing program

VM DIAGNOSIS:
06:24:57  Registers:
info registers vcpu 0
RAX=0000000000000000 RBX=0000000000000001 RCX=ffffffff8364f49c RDX=ffff888018028000
RSI=0000000000000000 RDI=0000000000000005 RBP=ffff88801920d000 RSP=ffff888016be79f8
R8 =0000000000000005 R9 =0000000000000000 R10=0000000000000001 R11=00000000000b6996
R12=0000000000000300 R13=ffff88801920d274 R14=0000000000034000 R15=dffffc0000000000
RIP=ffffffff814c01fc 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 00007f436f595900 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=00007f436fb4a650 CR3=0000000015da4000 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=000000000000000000000000000000ff
XMM02=000000000000000000000000000000ff XMM03=5320444f4854454d5f54505952434e45
XMM04=40404040404040404040404040404040 XMM05=5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a
XMM06=20202020202020202020202020202020 XMM07=00000000000000000000000000000000
XMM08=ffbc64ffffbc44ffffbc34ffffbc9f00 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000
info registers vcpu 1
RAX=00007f7e3c007130 RBX=0000000000000000 RCX=0000000000000280 RDX=0000000000000094
RSI=0000000000021000 RDI=0000000000000209 RBP=0000000000001fb0 RSP=00007f7e4a274620
R8 =0000000000000000 R9 =00007f7e3c000080 R10=00007f7e3c0073b0 R11=0000000000000000
R12=00007f7e3c000020 R13=00007f7e3c0008d0 R14=fffffffffffffee0 R15=00007f7e4a34b840
RIP=00007f7e4a6919e7 RFL=00000202 [-------] CPL=3 II=0 A20=1 SMM=0 HLT=0
ES =0000 0000000000000000 00000000 00000000
CS =0033 0000000000000000 ffffffff 00a0fb00 DPL=3 CS64 [-RA]
SS =002b 0000000000000000 ffffffff 00c0f300 DPL=3 DS   [-WA]
DS =0000 0000000000000000 00000000 00000000
FS =0000 00007f7e4a278700 00000000 00000000
GS =0000 0000000000000000 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=00007f436fb4d0b0 CR3=0000000015e92000 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=34323a3630203032206e754a3e38333c XMM01=6d6f72662064657463656e6e6f637369
XMM02=2e303120746f6f722072657375206d6f XMM03=3a5d3033325b646873732038353a3432
XMM04=6456774875434142334f726f59427469 XMM05=485320415352203a3268737320303030
XMM06=206d6f726620746f6f7220726f662079 XMM07=00000000000000000000000000000000
XMM08=3a677562656420676f6c737973720000 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000