syzkaller login: [   30.564174] BUG: Bad rss-counter state mm:00000000ce211165 type:MM_FILEPAGES val:33
[   30.565556] BUG: Bad rss-counter state mm:00000000ce211165 type:MM_ANONPAGES val:22
[   30.735256] ==================================================================
[   30.736256] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0
[   30.737284] Read of size 8 at addr ffff88800eb90ed8 by task sshd/220
[   30.738243] 
[   30.738481] CPU: 0 PID: 220 Comm: sshd Not tainted 6.4.0-rc7-next-20230620 #1
[   30.739452] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   30.740552] Call Trace:
[   30.740899]  <TASK>
[   30.741219]  dump_stack_lvl+0x91/0xf0
[   30.741757]  print_report+0xcc/0x620
[   30.742287]  ? __virt_addr_valid+0x102/0x340
[   30.742907]  ? vma_interval_tree_remove+0xc75/0xec0
[   30.743628]  ? vma_interval_tree_remove+0xc75/0xec0
[   30.744303]  kasan_report+0xbe/0xf0
[   30.744829]  ? vma_interval_tree_remove+0xc75/0xec0
[   30.745542]  vma_interval_tree_remove+0xc75/0xec0
[   30.746227]  vma_prepare+0xc54/0x11a0
[   30.746814]  __split_vma+0x5af/0x950
[   30.747474]  ? __pfx___split_vma+0x10/0x10
[   30.748202]  ? find_held_lock+0x2c/0x110
[   30.748883]  do_vmi_align_munmap+0x2ba/0x11f0
[   30.749664]  ? lock_is_held_type+0x9f/0x120
[   30.750360]  ? __pfx_do_vmi_align_munmap+0x10/0x10
[   30.751168]  ? mtree_range_walk+0x632/0x900
[   30.751880]  ? mas_walk+0x5c7/0x7c0
[   30.752469]  do_vmi_munmap+0x1f1/0x2b0
[   30.753019]  mmap_region+0x1f9/0x2660
[   30.753546]  ? vm_mmap_pgoff+0x15c/0x3a0
[   30.754106]  ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[   30.754889]  ? __pfx_lock_acquire+0x10/0x10
[   30.755481]  ? __pfx_mmap_region+0x10/0x10
[   30.756090]  ? security_mmap_addr+0x7d/0xa0
[   30.756679]  ? get_unmapped_area+0x1f5/0x3f0
[   30.757285]  do_mmap+0x854/0xf00
[   30.757777]  vm_mmap_pgoff+0x1a6/0x3a0
[   30.758325]  ? __pfx_vm_mmap_pgoff+0x10/0x10
[   30.758943]  ksys_mmap_pgoff+0x3af/0x500
[   30.759509]  do_syscall_64+0x3f/0x90
[   30.760058]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   30.760775] RIP: 0033:0x7f9cce45dd82
[   30.761278] 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
[   30.763652] RSP: 002b:00007ffe8d2d7928 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[   30.764661] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f9cce45dd82
[   30.765586] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f9ccd897000
[   30.766518] RBP: 00007f9ccd897000 R08: 0000000000000009 R09: 0000000000001000
[   30.767469] R10: 0000000000000812 R11: 0000000000000206 R12: 000055c7d2d22ec0
[   30.768407] R13: 00007ffe8d2d7940 R14: 00007ffe8d2d7970 R15: 00007ffe8d2d7cd0
[   30.769368]  </TASK>
[   30.769699] 
[   30.769933] Allocated by task 213:
[   30.770397]  kasan_save_stack+0x22/0x50
[   30.770954]  kasan_set_track+0x25/0x30
[   30.771535]  __kasan_slab_alloc+0x59/0x70
[   30.772112]  kmem_cache_alloc+0x16b/0x370
[   30.772695]  vm_area_dup+0x20/0x160
[   30.773191]  __split_vma+0x170/0x950
[   30.773715]  split_vma+0xc6/0x110
[   30.774186]  mprotect_fixup+0x8d2/0xb30
[   30.774748]  do_mprotect_pkey+0x87e/0xd40
[   30.775326]  __x64_sys_mprotect+0x78/0xc0
[   30.775913]  do_syscall_64+0x3f/0x90
[   30.776445]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   30.777162] 
[   30.777399] Freed by task 210:
[   30.777850]  kasan_save_stack+0x22/0x50
[   30.778412]  kasan_set_track+0x25/0x30
[   30.778963]  kasan_save_free_info+0x2b/0x50
[   30.779589]  __kasan_slab_free+0x10a/0x190
[   30.780185]  kmem_cache_free+0x10d/0x4d0
[   30.780803]  rcu_core+0x8c8/0x2860
[   30.781314]  __do_softirq+0x1b7/0x7d4
[   30.781854] 
[   30.782088] Last potentially related work creation:
[   30.782752]  kasan_save_stack+0x22/0x50
[   30.783314]  __kasan_record_aux_stack+0x8e/0xa0
[   30.783955]  __call_rcu_common.constprop.0+0x6a/0xb90
[   30.784679]  remove_vma+0x139/0x170
[   30.785190]  do_vmi_align_munmap+0xd4a/0x11f0
[   30.785831]  do_vmi_munmap+0x1f1/0x2b0
[   30.786379]  __vm_munmap+0x138/0x3a0
[   30.786919]  __x64_sys_munmap+0x59/0x80
[   30.787494]  do_syscall_64+0x3f/0x90
[   30.788056]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   30.788788] 
[   30.789030] The buggy address belongs to the object at ffff88800eb90e80
[   30.789030]  which belongs to the cache vm_area_struct of size 168
[   30.790729] The buggy address is located 88 bytes inside of
[   30.790729]  freed 168-byte region [ffff88800eb90e80, ffff88800eb90f28)
[   30.792381] 
[   30.792630] The buggy address belongs to the physical page:
[   30.793381] page:00000000ba6702e1 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xeb90
[   30.794625] memcg:ffff88800baba301
[   30.795126] flags: 0x100000000000200(slab|node=0|zone=1)
[   30.795877] page_type: 0xffffffff()
[   30.796390] raw: 0100000000000200 ffff8880087a0c80 ffffea000039e000 dead000000000004
[   30.797453] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff88800baba301
[   30.798500] page dumped because: kasan: bad access detected
[   30.799281] 
[   30.799537] Memory state around the buggy address:
[   30.800194]  ffff88800eb90d80: fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb fb
[   30.801198]  ffff88800eb90e00: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   30.802195] >ffff88800eb90e80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   30.803193]                                                     ^
[   30.804048]  ffff88800eb90f00: fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc
[   30.805042]  ffff88800eb90f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   30.806029] ==================================================================
[   30.807247] Disabling lock debugging due to kernel taint
[   32.761639] BUG: Bad rss-counter state mm:000000007821a460 type:MM_FILEPAGES val:33
[   32.762608] BUG: Bad rss-counter state mm:000000007821a460 type:MM_ANONPAGES val:22
[   33.195195] BUG: Bad rss-counter state mm:000000001ea64fa4 type:MM_FILEPAGES val:33
[   33.195932] BUG: Bad rss-counter state mm:000000001ea64fa4 type:MM_ANONPAGES val:22
Warning: Permanently added '[localhost]:3883' (ECDSA) to the list of known hosts.
2023/06/20 15:16:58 fuzzer started
2023/06/20 15:16:58 dialing manager at localhost:36067
2023/06/20 15:16:58 checking machine...
2023/06/20 15:16:58 checking revisions...
[   33.870097] kmemleak: Automatic memory scanning thread ended
2023/06/20 15:16:58 testing simple program...
[   33.921024] cgroup: Unknown subsys name 'net'
[   33.965118] cgroup: Unknown subsys name 'rlimit'
[   36.608147] general protection fault, probably for non-canonical address 0xe0877c0120000003: 0000 [#1] PREEMPT SMP KASAN NOPTI
[   36.609545] KASAN: maybe wild-memory-access in range [0x043c000900000018-0x043c00090000001f]
[   36.610578] CPU: 1 PID: 265 Comm: cron Tainted: G    B              6.4.0-rc7-next-20230620 #1
[   36.611669] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   36.612689] RIP: 0010:vma_interval_tree_insert+0x114/0x400
[   36.613399] 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 9b 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
[   36.615619] RSP: 0018:ffff888016e278a8 EFLAGS: 00010216
[   36.616288] RAX: 0087800120000003 RBX: 043c000900000000 RCX: 0000000000000000
[   36.617171] RDX: ffff8880146c3680 RSI: ffffffff816e6c79 RDI: 043c000900000018
[   36.618055] RBP: dffffc0000000000 R08: 0000000000000006 R09: 0000000000000002
[   36.618934] R10: 0000000000000001 R11: 00000000000b6a61 R12: 0000000000000004
[   36.619837] R13: 0000000000000002 R14: ffff888018f570e8 R15: ffff88800eb90da0
[   36.620721] FS:  00007f8837dd7840(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[   36.621716] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.622449] CR2: 0000564bf980a2e8 CR3: 000000000f1d8000 CR4: 0000000000350ee0
[   36.623340] Call Trace:
[   36.623671]  <TASK>
[   36.623967]  ? die_addr+0x3c/0xa0
[   36.624421]  ? exc_general_protection+0x125/0x220
[   36.625060]  ? asm_exc_general_protection+0x26/0x30
[   36.625729]  ? vma_interval_tree_insert+0x109/0x400
[   36.626364]  ? vma_interval_tree_insert+0x114/0x400
[   36.627001]  ? vma_interval_tree_insert+0x109/0x400
[   36.627650]  vma_prepare+0xa1a/0x11a0
[   36.628142]  __split_vma+0x5af/0x950
[   36.628624]  ? __pfx___split_vma+0x10/0x10
[   36.629173]  ? lock_acquire+0x434/0x4c0
[   36.629693]  do_vmi_align_munmap+0x361/0x11f0
[   36.630284]  ? __pfx_do_vmi_align_munmap+0x10/0x10
[   36.630909]  ? mtree_range_walk+0x632/0x900
[   36.631487]  ? mas_walk+0x5c7/0x7c0
[   36.631969]  do_vmi_munmap+0x1f1/0x2b0
[   36.632481]  mmap_region+0x1f9/0x2660
[   36.632984]  ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[   36.633734]  ? __pfx_lock_acquire+0x10/0x10
[   36.634283]  ? __pfx_mmap_region+0x10/0x10
[   36.634834]  ? security_mmap_addr+0x7d/0xa0
[   36.635389]  ? get_unmapped_area+0x1f5/0x3f0
[   36.635950]  do_mmap+0x854/0xf00
[   36.636404]  vm_mmap_pgoff+0x1a6/0x3a0
[   36.636915]  ? __pfx_vm_mmap_pgoff+0x10/0x10
[   36.637490]  ksys_mmap_pgoff+0x3af/0x500
[   36.638013]  do_syscall_64+0x3f/0x90
[   36.638508]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   36.639192] RIP: 0033:0x7f88380f9d82
[   36.639658] 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
[   36.641868] RSP: 002b:00007fff933afd58 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[   36.642800] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f88380f9d82
[   36.643688] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f88379b3000
[   36.644573] RBP: 00007f88379b3000 R08: 0000000000000009 R09: 0000000000001000
[   36.645448] R10: 0000000000000812 R11: 0000000000000206 R12: 0000564bf9809e00
[   36.646321] R13: 00007fff933afd70 R14: 00007fff933afda0 R15: 00007fff933b0100
[   36.647225]  </TASK>
[   36.647528] Modules linked in:
[   36.648491] ---[ end trace 0000000000000000 ]---
[   36.649884] RIP: 0010:vma_interval_tree_insert+0x114/0x400
[   36.650680] 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 9b 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
[   36.652847] RSP: 0018:ffff888016e278a8 EFLAGS: 00010216
[   36.653503] RAX: 0087800120000003 RBX: 043c000900000000 RCX: 0000000000000000
[   36.654373] RDX: ffff8880146c3680 RSI: ffffffff816e6c79 RDI: 043c000900000018
[   36.655255] RBP: dffffc0000000000 R08: 0000000000000006 R09: 0000000000000002
[   36.656130] R10: 0000000000000001 R11: 00000000000b6a61 R12: 0000000000000004
[   36.656995] R13: 0000000000000002 R14: ffff888018f570e8 R15: ffff88800eb90da0
[   36.657840] FS:  00007f8837dd7840(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[   36.658802] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.659525] CR2: 0000564bf980a2e8 CR3: 000000000f1d8000 CR4: 0000000000350ee0
executing program
executing program
executing program

VM DIAGNOSIS:
15:16:57  Registers:
info registers vcpu 0
RAX=ffff88806ce35000 RBX=0000000000000000 RCX=ffffffff8451250e RDX=ffffed100d9c6a01
RSI=0000000000000004 RDI=ffffffff81288ac5 RBP=dffffc0000000000 RSP=ffffffff85407e10
R8 =0000000000000000 R9 =ffffed100d9c6a00 R10=ffff88806ce35003 R11=ffff888008c04000
R12=ffffffff85d3d350 R13=1ffffffff0a80fc7 R14=0000000000000000 R15=0000000000000000
RIP=ffffffff8451349f 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 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=00007fb2ea43b9f0 CR3=000000000e07a000 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=2037353a36313a3531203032206e754a XMM01=73732878696e755f6d6170203a5d3932
XMM02=65736f6c63206e6f6973736573203a29 XMM03=755f6d6170203a5d3932325b64687373
XMM04=69662068637573206f4e203a656c6163 XMM05=3a656c696620766e65206e65706f206f
XMM06=65733a6468737328766e655f6d617020 XMM07=6b7a79732037353a36313a3531203032
XMM08=3d656e696c646d632022656369767265 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000
info registers vcpu 1
RAX=0000000000000000 RBX=0000000000000001 RCX=ffffffff860d8256 RDX=1ffff1100d9e134e
RSI=0000000000000000 RDI=0000000000000001 RBP=ffff88806cf09ac8 RSP=ffff88806cf09a00
R8 =ffffffff860d825a R9 =ffff88806cf09ab0 R10=0000000000038001 R11=0000000000010b8d
R12=ffff88806cf09ad0 R13=ffff88806cf09ab8 R14=ffff888016f3f830 R15=ffff88806cf09a70
RIP=ffffffff81131271 RFL=00000216 [----AP-] 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 00007f07d8cb3900 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=00007ffc9e6ac000 CR3=000000000dd9e000 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=6720646572637465733a4d41503d706f 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