syzkaller login: [   31.027029] BUG: Bad rss-counter state mm:000000009d4ae90e type:MM_FILEPAGES val:33
[   31.028291] BUG: Bad rss-counter state mm:000000009d4ae90e type:MM_ANONPAGES val:22
[   31.064570] ==================================================================
[   31.065530] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0
[   31.066511] Read of size 8 at addr ffff88800e5474e0 by task sshd/220
[   31.067303] 
[   31.067532] CPU: 0 PID: 220 Comm: sshd Not tainted 6.4.0-rc7-next-20230620 #1
[   31.068430] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   31.069421] Call Trace:
[   31.069753]  <TASK>
[   31.070049]  dump_stack_lvl+0x91/0xf0
[   31.070555]  print_report+0xcc/0x620
[   31.071082]  ? __virt_addr_valid+0x102/0x340
[   31.071634]  ? vma_interval_tree_remove+0xc75/0xec0
[   31.072289]  ? vma_interval_tree_remove+0xc75/0xec0
[   31.072923]  kasan_report+0xbe/0xf0
[   31.073407]  ? vma_interval_tree_remove+0xc75/0xec0
[   31.074053]  vma_interval_tree_remove+0xc75/0xec0
[   31.074657]  vma_prepare+0xc54/0x11a0
[   31.075149]  __split_vma+0x5af/0x950
[   31.075619]  ? __pfx___split_vma+0x10/0x10
[   31.076200]  ? find_held_lock+0x2c/0x110
[   31.076731]  do_vmi_align_munmap+0x2ba/0x11f0
[   31.077317]  ? lock_is_held_type+0x9f/0x120
[   31.077878]  ? __pfx_do_vmi_align_munmap+0x10/0x10
[   31.078493]  ? mtree_range_walk+0x632/0x900
[   31.079058]  ? mas_walk+0x5c7/0x7c0
[   31.079540]  do_vmi_munmap+0x1f1/0x2b0
[   31.080063]  mmap_region+0x1f9/0x2660
[   31.080571]  ? vm_mmap_pgoff+0x15c/0x3a0
[   31.081100]  ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[   31.081850]  ? __pfx_lock_acquire+0x10/0x10
[   31.082382]  ? __pfx_mmap_region+0x10/0x10
[   31.082922]  ? security_mmap_addr+0x7d/0xa0
[   31.083456]  ? get_unmapped_area+0x1f5/0x3f0
[   31.084014]  do_mmap+0x854/0xf00
[   31.084471]  vm_mmap_pgoff+0x1a6/0x3a0
[   31.085000]  ? __pfx_vm_mmap_pgoff+0x10/0x10
[   31.085570]  ksys_mmap_pgoff+0x3af/0x500
[   31.086108]  do_syscall_64+0x3f/0x90
[   31.086587]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   31.087244] RIP: 0033:0x7fa2834f6d82
[   31.087698] 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
[   31.089913] RSP: 002b:00007ffded913c68 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[   31.090851] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fa2834f6d82
[   31.091847] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007fa282930000
[   31.092748] RBP: 00007fa282930000 R08: 0000000000000009 R09: 0000000000001000
[   31.093620] R10: 0000000000000812 R11: 0000000000000206 R12: 00005591f64efb20
[   31.094505] R13: 00007ffded913c80 R14: 00007ffded913cb0 R15: 00007ffded914010
[   31.095386]  </TASK>
[   31.095681] 
[   31.095921] Allocated by task 213:
[   31.096385]  kasan_save_stack+0x22/0x50
[   31.096911]  kasan_set_track+0x25/0x30
[   31.097407]  __kasan_slab_alloc+0x59/0x70
[   31.097967]  kmem_cache_alloc+0x16b/0x370
[   31.098482]  vm_area_dup+0x20/0x160
[   31.098963]  __split_vma+0x170/0x950
[   31.099433]  split_vma+0xc6/0x110
[   31.099895]  mprotect_fixup+0x8d2/0xb30
[   31.100418]  do_mprotect_pkey+0x87e/0xd40
[   31.100972]  __x64_sys_mprotect+0x78/0xc0
[   31.101499]  do_syscall_64+0x3f/0x90
[   31.101990]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   31.102634] 
[   31.102862] Freed by task 213:
[   31.103259]  kasan_save_stack+0x22/0x50
[   31.103774]  kasan_set_track+0x25/0x30
[   31.104284]  kasan_save_free_info+0x2b/0x50
[   31.104846]  __kasan_slab_free+0x10a/0x190
[   31.105384]  kmem_cache_free+0x10d/0x4d0
[   31.105910]  rcu_core+0x8c8/0x2860
[   31.106364]  __do_softirq+0x1b7/0x7d4
[   31.106861] 
[   31.107076] Last potentially related work creation:
[   31.107660]  kasan_save_stack+0x22/0x50
[   31.108328]  __kasan_record_aux_stack+0x8e/0xa0
[   31.109119]  __call_rcu_common.constprop.0+0x6a/0xb90
[   31.109940]  remove_vma+0x139/0x170
[   31.110500]  do_vmi_align_munmap+0xd4a/0x11f0
[   31.111203]  do_vmi_munmap+0x1f1/0x2b0
[   31.111808]  __vm_munmap+0x138/0x3a0
[   31.112427]  __x64_sys_munmap+0x59/0x80
[   31.113055]  do_syscall_64+0x3f/0x90
[   31.113645]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   31.114453] 
[   31.114744] The buggy address belongs to the object at ffff88800e547488
[   31.114744]  which belongs to the cache vm_area_struct of size 168
[   31.116541] The buggy address is located 88 bytes inside of
[   31.116541]  freed 168-byte region [ffff88800e547488, ffff88800e547530)
[   31.117977] 
[   31.118197] The buggy address belongs to the physical page:
[   31.118889] page:00000000070c4eb9 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xe547
[   31.120000] memcg:ffff88800c540301
[   31.120450] flags: 0x100000000000200(slab|node=0|zone=1)
[   31.121122] page_type: 0xffffffff()
[   31.121570] raw: 0100000000000200 ffff8880087a0c80 dead000000000122 0000000000000000
[   31.122503] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff88800c540301
[   31.123425] page dumped because: kasan: bad access detected
[   31.124116] 
[   31.124339] Memory state around the buggy address:
[   31.124937]  ffff88800e547380: fc fc fc fc 00 00 00 00 00 00 00 00 00 00 00 00
[   31.125810]  ffff88800e547400: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
[   31.126668] >ffff88800e547480: fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.127537]                                                        ^
[   31.128337]  ffff88800e547500: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fa fb
[   31.129224]  ffff88800e547580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.130089] ==================================================================
[   31.131186] Disabling lock debugging due to kernel taint
[   33.452716] BUG: Bad rss-counter state mm:000000008f3e9b7f type:MM_FILEPAGES val:33
[   33.453713] BUG: Bad rss-counter state mm:000000008f3e9b7f type:MM_ANONPAGES val:22
[   33.923452] BUG: Bad rss-counter state mm:00000000ce586738 type:MM_FILEPAGES val:33
[   33.924630] BUG: Bad rss-counter state mm:00000000ce586738 type:MM_ANONPAGES val:22
Warning: Permanently added '[localhost]:50752' (ECDSA) to the list of known hosts.
2023/06/20 16:16:53 fuzzer started
2023/06/20 16:16:54 dialing manager at localhost:36067
2023/06/20 16:16:54 checking machine...
2023/06/20 16:16:54 checking revisions...
[   34.694122] kmemleak: Automatic memory scanning thread ended
2023/06/20 16:16:54 testing simple program...
[   34.755887] cgroup: Unknown subsys name 'net'
[   34.795379] cgroup: Unknown subsys name 'rlimit'
executing program
executing program
[   42.178199] general protection fault, probably for non-canonical address 0xe0f6dc2700000014: 0000 [#1] PREEMPT SMP KASAN NOPTI
[   42.179133] KASAN: maybe wild-memory-access in range [0x07b70138000000a0-0x07b70138000000a7]
[   42.179814] CPU: 0 PID: 265 Comm: cron Tainted: G    B              6.4.0-rc7-next-20230620 #1
[   42.180520] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   42.181176] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0
[   42.181624] 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
[   42.183068] RSP: 0018:ffff88801988f8a8 EFLAGS: 00010217
[   42.183507] RAX: ffff888018f85ef8 RBX: ffff88800ec40b20 RCX: ffffffff844d49f9
[   42.184082] RDX: 00f6e02700000014 RSI: 0000000000000008 RDI: ffff888018f94270
[   42.184672] RBP: ffff888009095c80 R08: ffff888018f94270 R09: 0000000000000000
[   42.185245] R10: 0000000000000000 R11: 00000000000b6a61 R12: ffff888018f94268
[   42.185820] R13: dffffc0000000000 R14: 07b70138000000a5 R15: ffffffff816e6340
[   42.186394] FS:  00007ff2ca7d4840(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[   42.187043] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.187510] CR2: 00007ff2ca3b0000 CR3: 000000000e338000 CR4: 0000000000350ef0
[   42.188080] Call Trace:
[   42.188424]  <TASK>
[   42.188768]  ? die_addr+0x3c/0xa0
[   42.189307]  ? exc_general_protection+0x125/0x220
[   42.190052]  ? asm_exc_general_protection+0x26/0x30
[   42.190810]  ? __pfx_vma_interval_tree_augment_rotate+0x10/0x10
[   42.191696]  ? __rb_insert_augmented+0x5e9/0x8b0
[   42.192448]  ? __rb_insert_augmented+0x9d/0x8b0
[   42.193152]  ? __rb_insert_augmented+0x5e9/0x8b0
[   42.193871]  vma_prepare+0xa1a/0x11a0
[   42.194442]  __split_vma+0x5af/0x950
[   42.195008]  ? __pfx___split_vma+0x10/0x10
[   42.195639]  ? lock_acquire+0x434/0x4c0
[   42.196229]  do_vmi_align_munmap+0x361/0x11f0
[   42.196918]  ? trace_hardirqs_on+0x16/0x100
[   42.197581]  ? trace_hardirqs_on+0x16/0x100
[   42.198225]  ? __pfx_do_vmi_align_munmap+0x10/0x10
[   42.198947]  ? mtree_range_walk+0x632/0x900
[   42.199623]  ? mas_walk+0x5c7/0x7c0
[   42.200195]  do_vmi_munmap+0x1f1/0x2b0
[   42.200798]  mmap_region+0x1f9/0x2660
[   42.201378]  ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[   42.202236]  ? __pfx_lock_acquire+0x10/0x10
[   42.202873]  ? __pfx_mmap_region+0x10/0x10
[   42.203518]  ? security_mmap_addr+0x7d/0xa0
[   42.204159]  ? get_unmapped_area+0x1f5/0x3f0
[   42.204810]  do_mmap+0x854/0xf00
[   42.205279]  vm_mmap_pgoff+0x1a6/0x3a0
[   42.205807]  ? __pfx_vm_mmap_pgoff+0x10/0x10
[   42.206420]  ksys_mmap_pgoff+0x3af/0x500
[   42.206958]  do_syscall_64+0x3f/0x90
[   42.207465]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   42.208159] RIP: 0033:0x7ff2caaf6d82
[   42.208657] 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
[   42.210923] RSP: 002b:00007ffcab4cef58 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[   42.211883] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007ff2caaf6d82
[   42.212810] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007ff2ca3ab000
[   42.213724] RBP: 00007ff2ca3ab000 R08: 0000000000000009 R09: 0000000000001000
[   42.214625] R10: 0000000000000812 R11: 0000000000000206 R12: 00005622b2b45580
[   42.215534] R13: 00007ffcab4cef70 R14: 00007ffcab4cefa0 R15: 00007ffcab4cf300
[   42.216450]  </TASK>
[   42.216760] Modules linked in:
[   42.217249] ---[ end trace 0000000000000000 ]---
[   42.217882] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0
[   42.218610] 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
[   42.220926] RSP: 0018:ffff88801988f8a8 EFLAGS: 00010217
[   42.221639] RAX: ffff888018f85ef8 RBX: ffff88800ec40b20 RCX: ffffffff844d49f9
[   42.222580] RDX: 00f6e02700000014 RSI: 0000000000000008 RDI: ffff888018f94270
[   42.223522] RBP: ffff888009095c80 R08: ffff888018f94270 R09: 0000000000000000
[   42.224469] R10: 0000000000000000 R11: 00000000000b6a61 R12: ffff888018f94268
[   42.225377] R13: dffffc0000000000 R14: 07b70138000000a5 R15: ffffffff816e6340
[   42.226313] FS:  00007ff2ca7d4840(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[   42.227357] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.228127] CR2: 00007ff2ca3b0000 CR3: 000000000e338000 CR4: 0000000000350ef0
executing program

VM DIAGNOSIS:
16:16:53  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=00007f9a8d7314c0 CR3=000000000fcc2000 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=2033353a36313a3631203032206e754a XMM01=73732878696e755f6d6170203a5d3033
XMM02=65736f6c63206e6f6973736573203a29 XMM03=755f6d6170203a5d3033325b64687373
XMM04=69662068637573206f4e203a656c6163 XMM05=3a656c696620766e65206e65706f206f
XMM06=65733a6468737328766e655f6d617020 XMM07=6b7a79732033353a36313a3631203032
XMM08=3d656e696c646d632022656369767265 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000
info registers vcpu 1
RAX=fffffbfff0ba7a6a RBX=1ffff110013d0f31 RCX=ffffffff812d8f13 RDX=0000000000000000
RSI=0000000000000008 RDI=ffffffff85d3d350 RBP=fffffbfff0ba7a6a RSP=ffff888009e87958
R8 =0000000000000000 R9 =fffffbfff0ba7a6a R10=ffffffff85d3d357 R11=00000000000b6a61
R12=0000000000000000 R13=0000000000000000 R14=ffff888016bfe540 R15=0000000000000000
RIP=ffffffff8180f09a RFL=00000086 [--S--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 00007f9b9c3f6900 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=00007ffc6da45000 CR3=000000000e618000 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