syzkaller login: [   31.197176] BUG: Bad rss-counter state mm:000000001607ed8f type:MM_FILEPAGES val:33
[   31.198420] BUG: Bad rss-counter state mm:000000001607ed8f type:MM_ANONPAGES val:22
[   31.339952] ==================================================================
[   31.341030] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0
[   31.342206] Read of size 8 at addr ffff88800df543f8 by task sshd/220
[   31.343155] 
[   31.343431] CPU: 1 PID: 220 Comm: sshd Not tainted 6.4.0-rc7-next-20230620 #1
[   31.344443] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   31.345554] Call Trace:
[   31.345922]  <TASK>
[   31.346249]  dump_stack_lvl+0x91/0xf0
[   31.346821]  print_report+0xcc/0x620
[   31.347392]  ? __virt_addr_valid+0x102/0x340
[   31.348055]  ? vma_interval_tree_remove+0xc75/0xec0
[   31.348775]  ? vma_interval_tree_remove+0xc75/0xec0
[   31.349490]  kasan_report+0xbe/0xf0
[   31.350037]  ? vma_interval_tree_remove+0xc75/0xec0
[   31.350761]  vma_interval_tree_remove+0xc75/0xec0
[   31.351475]  vma_prepare+0xc54/0x11a0
[   31.352032]  __split_vma+0x5af/0x950
[   31.352579]  ? __pfx___split_vma+0x10/0x10
[   31.353203]  ? find_held_lock+0x2c/0x110
[   31.353800]  do_vmi_align_munmap+0x2ba/0x11f0
[   31.354463]  ? lock_is_held_type+0x9f/0x120
[   31.355085]  ? __pfx_do_vmi_align_munmap+0x10/0x10
[   31.355798]  ? mtree_range_walk+0x632/0x900
[   31.356438]  ? mas_walk+0x5c7/0x7c0
[   31.356992]  do_vmi_munmap+0x1f1/0x2b0
[   31.357559]  mmap_region+0x1f9/0x2660
[   31.358131]  ? vm_mmap_pgoff+0x15c/0x3a0
[   31.358735]  ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[   31.359578]  ? __pfx_lock_acquire+0x10/0x10
[   31.360200]  ? __pfx_mmap_region+0x10/0x10
[   31.360812]  ? security_mmap_addr+0x7d/0xa0
[   31.361420]  ? get_unmapped_area+0x1f5/0x3f0
[   31.362056]  do_mmap+0x854/0xf00
[   31.362560]  vm_mmap_pgoff+0x1a6/0x3a0
[   31.363133]  ? __pfx_vm_mmap_pgoff+0x10/0x10
[   31.363803]  ksys_mmap_pgoff+0x3af/0x500
[   31.364440]  do_syscall_64+0x3f/0x90
[   31.365032]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   31.365808] RIP: 0033:0x7ff66b7b2d82
[   31.366331] 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
[   31.368785] RSP: 002b:00007ffde816f278 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[   31.369818] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007ff66b7b2d82
[   31.370788] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007ff66abec000
[   31.371755] RBP: 00007ff66abec000 R08: 0000000000000009 R09: 0000000000001000
[   31.372727] R10: 0000000000000812 R11: 0000000000000206 R12: 000056092f2f9ec0
[   31.373703] R13: 00007ffde816f290 R14: 00007ffde816f2c0 R15: 00007ffde816f620
[   31.374720]  </TASK>
[   31.375066] 
[   31.375334] Allocated by task 213:
[   31.375823]  kasan_save_stack+0x22/0x50
[   31.376407]  kasan_set_track+0x25/0x30
[   31.376997]  __kasan_slab_alloc+0x59/0x70
[   31.377622]  kmem_cache_alloc+0x16b/0x370
[   31.378226]  vm_area_dup+0x20/0x160
[   31.378767]  __split_vma+0x170/0x950
[   31.379333]  split_vma+0xc6/0x110
[   31.379853]  mprotect_fixup+0x8d2/0xb30
[   31.380458]  do_mprotect_pkey+0x87e/0xd40
[   31.381093]  __x64_sys_mprotect+0x78/0xc0
[   31.381722]  do_syscall_64+0x3f/0x90
[   31.382291]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   31.383059] 
[   31.383326] Freed by task 203:
[   31.383850]  kasan_save_stack+0x22/0x50
[   31.384464]  kasan_set_track+0x25/0x30
[   31.385047]  kasan_save_free_info+0x2b/0x50
[   31.385657]  __kasan_slab_free+0x10a/0x190
[   31.386264]  kmem_cache_free+0x10d/0x4d0
[   31.386850]  rcu_core+0x8c8/0x2860
[   31.387382]  __do_softirq+0x1b7/0x7d4
[   31.387930] 
[   31.388179] Last potentially related work creation:
[   31.388842]  kasan_save_stack+0x22/0x50
[   31.389416]  __kasan_record_aux_stack+0x8e/0xa0
[   31.390074]  __call_rcu_common.constprop.0+0x6a/0xb90
[   31.390802]  remove_vma+0x139/0x170
[   31.391329]  do_vmi_align_munmap+0xd4a/0x11f0
[   31.392016]  do_vmi_munmap+0x1f1/0x2b0
[   31.392622]  __vm_munmap+0x138/0x3a0
[   31.393199]  __x64_sys_munmap+0x59/0x80
[   31.393814]  do_syscall_64+0x3f/0x90
[   31.394409]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   31.395226] 
[   31.395496] The buggy address belongs to the object at ffff88800df543a0
[   31.395496]  which belongs to the cache vm_area_struct of size 168
[   31.397365] The buggy address is located 88 bytes inside of
[   31.397365]  freed 168-byte region [ffff88800df543a0, ffff88800df54448)
[   31.399181] 
[   31.399461] The buggy address belongs to the physical page:
[   31.400283] page:00000000d613ba53 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xdf54
[   31.401664] memcg:ffff888014292c01
[   31.402208] flags: 0x100000000000200(slab|node=0|zone=1)
[   31.403023] page_type: 0xffffffff()
[   31.403599] raw: 0100000000000200 ffff8880087a0c80 dead000000000122 0000000000000000
[   31.404741] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff888014292c01
[   31.405905] page dumped because: kasan: bad access detected
[   31.406754] 
[   31.407020] Memory state around the buggy address:
[   31.407762]  ffff88800df54280: fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 00
[   31.408780]  ffff88800df54300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
[   31.409813] >ffff88800df54380: fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb
[   31.410827]                                                                 ^
[   31.411906]  ffff88800df54400: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc
[   31.412984]  ffff88800df54480: fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.414019] ==================================================================
[   31.415362] Disabling lock debugging due to kernel taint
[   33.821340] BUG: Bad rss-counter state mm:0000000090e71c85 type:MM_FILEPAGES val:33
[   33.822506] BUG: Bad rss-counter state mm:0000000090e71c85 type:MM_ANONPAGES val:22
[   34.315861] BUG: Bad rss-counter state mm:00000000775e8bbf type:MM_FILEPAGES val:33
[   34.317233] BUG: Bad rss-counter state mm:00000000775e8bbf type:MM_ANONPAGES val:22
Warning: Permanently added '[localhost]:5693' (ECDSA) to the list of known hosts.
2023/06/20 12:16:58 fuzzer started
2023/06/20 12:16:58 dialing manager at localhost:36067
2023/06/20 12:16:58 checking machine...
2023/06/20 12:16:58 checking revisions...
[   34.983112] kmemleak: Automatic memory scanning thread ended
2023/06/20 12:16:58 testing simple program...
[   35.034439] cgroup: Unknown subsys name 'net'
[   35.095073] cgroup: Unknown subsys name 'rlimit'
executing program
[   38.072133] general protection fault, probably for non-canonical address 0xe0877c012000001b: 0000 [#1] PREEMPT SMP KASAN NOPTI
[   38.073690] KASAN: maybe wild-memory-access in range [0x043c0009000000d8-0x043c0009000000df]
[   38.074750] CPU: 1 PID: 265 Comm: cron Tainted: G    B              6.4.0-rc7-next-20230620 #1
[   38.075865] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   38.076896] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0
[   38.077612] 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
[   38.079950] RSP: 0018:ffff888016f1f8a8 EFLAGS: 00010217
[   38.080638] RAX: ffff888019b972c8 RBX: ffff88800eac6cf0 RCX: ffffffff844d49f9
[   38.081567] RDX: 008780012000001b RSI: 0000000000000008 RDI: ffff88800f60d5f8
[   38.082513] RBP: ffff88800e60e5c0 R08: ffff88800f60d5f8 R09: 0000000000000000
[   38.083460] R10: 0000000000000000 R11: 00000000000b6a61 R12: ffff88800f60d5f0
[   38.084429] R13: dffffc0000000000 R14: 043c0009000000dc R15: ffffffff816e6340
[   38.085354] FS:  00007f8c694f0840(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[   38.086409] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   38.087174] CR2: 00007f8c690cc000 CR3: 000000000cbf0000 CR4: 0000000000350ee0
[   38.088122] Call Trace:
[   38.088471]  <TASK>
[   38.088770]  ? die_addr+0x3c/0xa0
[   38.089257]  ? exc_general_protection+0x125/0x220
[   38.089908]  ? asm_exc_general_protection+0x26/0x30
[   38.090575]  ? __pfx_vma_interval_tree_augment_rotate+0x10/0x10
[   38.091364]  ? __rb_insert_augmented+0x5e9/0x8b0
[   38.092009]  ? __rb_insert_augmented+0x9d/0x8b0
[   38.092619]  ? __rb_insert_augmented+0x5e9/0x8b0
[   38.093255]  vma_prepare+0xa1a/0x11a0
[   38.093754]  __split_vma+0x5af/0x950
[   38.094258]  ? __pfx___split_vma+0x10/0x10
[   38.094813]  ? lock_acquire+0x434/0x4c0
[   38.095369]  do_vmi_align_munmap+0x361/0x11f0
[   38.095970]  ? trace_hardirqs_on+0x16/0x100
[   38.096550]  ? trace_hardirqs_on+0x16/0x100
[   38.097129]  ? __pfx_do_vmi_align_munmap+0x10/0x10
[   38.097776]  ? mtree_range_walk+0x632/0x900
[   38.098362]  ? mas_walk+0x5c7/0x7c0
[   38.098875]  do_vmi_munmap+0x1f1/0x2b0
[   38.099403]  mmap_region+0x1f9/0x2660
[   38.099921]  ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[   38.100663]  ? __pfx_lock_acquire+0x10/0x10
[   38.101223]  ? __pfx_mmap_region+0x10/0x10
[   38.101786]  ? security_mmap_addr+0x7d/0xa0
[   38.102350]  ? get_unmapped_area+0x1f5/0x3f0
[   38.102923]  do_mmap+0x854/0xf00
[   38.103399]  vm_mmap_pgoff+0x1a6/0x3a0
[   38.103925]  ? __pfx_vm_mmap_pgoff+0x10/0x10
[   38.104517]  ksys_mmap_pgoff+0x3af/0x500
[   38.105055]  do_syscall_64+0x3f/0x90
[   38.105565]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   38.106248] RIP: 0033:0x7f8c69812d82
[   38.106732] 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
[   38.108974] RSP: 002b:00007fffc2e4bda8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[   38.109929] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f8c69812d82
[   38.110810] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f8c690c7000
[   38.111706] RBP: 00007f8c690c7000 R08: 0000000000000009 R09: 0000000000001000
[   38.112586] R10: 0000000000000812 R11: 0000000000000206 R12: 00005558f3137580
[   38.113495] R13: 00007fffc2e4bdc0 R14: 00007fffc2e4bdf0 R15: 00007fffc2e4c150
[   38.114398]  </TASK>
[   38.114703] Modules linked in:
[   38.115209] ---[ end trace 0000000000000000 ]---
[   38.115945] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0
[   38.116651] 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
[   38.118951] RSP: 0018:ffff888016f1f8a8 EFLAGS: 00010217
[   38.119644] RAX: ffff888019b972c8 RBX: ffff88800eac6cf0 RCX: ffffffff844d49f9
[   38.120577] RDX: 008780012000001b RSI: 0000000000000008 RDI: ffff88800f60d5f8
[   38.121498] RBP: ffff88800e60e5c0 R08: ffff88800f60d5f8 R09: 0000000000000000
[   38.122421] R10: 0000000000000000 R11: 00000000000b6a61 R12: ffff88800f60d5f0
[   38.123368] R13: dffffc0000000000 R14: 043c0009000000dc R15: ffffffff816e6340
[   38.124305] FS:  00007f8c694f0840(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[   38.125349] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   38.126123] CR2: 00007f8c690cc000 CR3: 000000000cbf0000 CR4: 0000000000350ee0
executing program
executing program

VM DIAGNOSIS:
12:16:58  Registers:
info registers vcpu 0
RAX=0000000000000000 RBX=0000000000000000 RCX=0000000000000000 RDX=ffff888009500000
RSI=ffffffff82243966 RDI=0000000000000006 RBP=0000000000000010 RSP=ffff88800950f930
R8 =0000000000000006 R9 =000000000000000a R10=0000000000000010 R11=0000000000000128
R12=ffff8880142ab4d0 R13=0000000000000001 R14=0000607f92e14190 R15=000000000000000a
RIP=ffffffff814c089b 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 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=00005579dcf00218 CR3=0000000010038000 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=44ae012440ccb7ea827a34c3ca727ff3
XMM02=f51227a1c8db45539a56a25a686403eb XMM03=f655a04d0eadef5e396baa8b5ab6c98b
XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000
XMM06=0d0c0f0e09080b0a0504070601000302 XMM07=0e0d0c0f0a09080b0605040702010003
XMM08=01000000000000000000000000000001 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000
info registers vcpu 1
RAX=000000000c740000 RBX=000000000c740000 RCX=0000000000000000 RDX=000000000001c064
RSI=ffffffff82191f18 RDI=0000000000000007 RBP=ffff888009b30000 RSP=ffff88800a18f7b8
R8 =0000000000000007 R9 =0000000000010000 R10=000000000001c064 R11=0000000000000128
R12=000000000001c064 R13=ffff888009b301a0 R14=ffff888009b30098 R15=dffffc0000000000
RIP=ffffffff82191f1e RFL=00000093 [--S-A-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 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=00007ffc1c06e5d8 CR3=0000000005482000 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=00007faea2d4251000005560265f2790
XMM02=6f6974707972636e6561737268746977 XMM03=00000000000000000000000000777074
XMM04=40404040404040404040404040404040 XMM05=5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a
XMM06=20202020202020202020202020202020 XMM07=ffffffffffff00ffffff00ffffff00ff
XMM08=00002000000000202020002020200000 XMM09=ffffffffffff00ffffff00ffffff00ff
XMM10=00002000000000202020002020200000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000