syzkaller login: [ 31.994839] BUG: Bad rss-counter state mm:00000000d7c8fcad type:MM_FILEPAGES val:33
[ 31.996013] BUG: Bad rss-counter state mm:00000000d7c8fcad type:MM_ANONPAGES val:22
[ 32.035083] ==================================================================
[ 32.036048] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0
[ 32.037077] Read of size 8 at addr ffff88800d9b0a50 by task sshd/221
[ 32.037911]
[ 32.038122] CPU: 1 PID: 221 Comm: sshd Not tainted 6.4.0-rc7-next-20230619 #1
[ 32.038973] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 32.039915] Call Trace:
[ 32.040230]
[ 32.040509] dump_stack_lvl+0x91/0xf0
[ 32.040981] print_report+0xcc/0x620
[ 32.041450] ? __virt_addr_valid+0x102/0x340
[ 32.041986] ? vma_interval_tree_remove+0xc75/0xec0
[ 32.042599] ? vma_interval_tree_remove+0xc75/0xec0
[ 32.043196] kasan_report+0xbe/0xf0
[ 32.043664] ? vma_interval_tree_remove+0xc75/0xec0
[ 32.044417] vma_interval_tree_remove+0xc75/0xec0
[ 32.045015] vma_prepare+0xc54/0x11a0
[ 32.045498] __split_vma+0x5af/0x950
[ 32.045966] ? __pfx___split_vma+0x10/0x10
[ 32.046518] ? find_held_lock+0x2c/0x110
[ 32.047041] do_vmi_align_munmap+0x2ba/0x11f0
[ 32.047608] ? lock_is_held_type+0x9f/0x120
[ 32.048144] ? __pfx_do_vmi_align_munmap+0x10/0x10
[ 32.048754] ? mtree_range_walk+0x632/0x900
[ 32.049301] ? mas_walk+0x5c7/0x7c0
[ 32.049774] do_vmi_munmap+0x1f1/0x2b0
[ 32.050280] mmap_region+0x1f9/0x2660
[ 32.050766] ? vm_mmap_pgoff+0x15c/0x3a0
[ 32.051277] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[ 32.051994] ? __pfx_lock_acquire+0x10/0x10
[ 32.052528] ? __pfx_mmap_region+0x10/0x10
[ 32.053056] ? security_mmap_addr+0x7d/0xa0
[ 32.053585] ? get_unmapped_area+0x1f5/0x3f0
[ 32.054129] do_mmap+0x854/0xf00
[ 32.054594] vm_mmap_pgoff+0x1a6/0x3a0
[ 32.055098] ? __pfx_vm_mmap_pgoff+0x10/0x10
[ 32.055659] ksys_mmap_pgoff+0x3af/0x500
[ 32.056166] do_syscall_64+0x3f/0x90
[ 32.056644] entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[ 32.057289] RIP: 0033:0x7f4a2d66ed82
[ 32.057742] 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
[ 32.059880] RSP: 002b:00007ffc86786b08 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[ 32.060790] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f4a2d66ed82
[ 32.061644] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f4a2caa8000
[ 32.062503] RBP: 00007f4a2caa8000 R08: 0000000000000009 R09: 0000000000001000
[ 32.063350] R10: 0000000000000812 R11: 0000000000000206 R12: 0000560584acaec0
[ 32.064185] R13: 00007ffc86786b20 R14: 00007ffc86786b50 R15: 00007ffc86786eb0
[ 32.065047]
[ 32.065339]
[ 32.065555] Allocated by task 214:
[ 32.065980] kasan_save_stack+0x22/0x50
[ 32.066497] kasan_set_track+0x25/0x30
[ 32.066991] __kasan_slab_alloc+0x59/0x70
[ 32.067511] kmem_cache_alloc+0x16b/0x370
[ 32.068026] vm_area_dup+0x20/0x160
[ 32.068481] __split_vma+0x170/0x950
[ 32.068947] split_vma+0xc6/0x110
[ 32.069385] mprotect_fixup+0x8d2/0xb30
[ 32.069881] do_mprotect_pkey+0x87e/0xd40
[ 32.070409] __x64_sys_mprotect+0x78/0xc0
[ 32.070924] do_syscall_64+0x3f/0x90
[ 32.071393] entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[ 32.072031]
[ 32.072243] Freed by task 214:
[ 32.072631] kasan_save_stack+0x22/0x50
[ 32.073128] kasan_set_track+0x25/0x30
[ 32.073624] kasan_save_free_info+0x2b/0x50
[ 32.074151] __kasan_slab_free+0x10a/0x190
[ 32.074692] kmem_cache_free+0x10d/0x4d0
[ 32.075198] rcu_core+0x8c8/0x2860
[ 32.075637] __do_softirq+0x1b7/0x7d4
[ 32.076115]
[ 32.076331] Last potentially related work creation:
[ 32.076915] kasan_save_stack+0x22/0x50
[ 32.077414] __kasan_record_aux_stack+0x8e/0xa0
[ 32.077982] __call_rcu_common.constprop.0+0x6a/0xb90
[ 32.078639] remove_vma+0x139/0x170
[ 32.079169] do_vmi_align_munmap+0xd4a/0x11f0
[ 32.079724] do_vmi_munmap+0x1f1/0x2b0
[ 32.080209] __vm_munmap+0x138/0x3a0
[ 32.080678] __x64_sys_munmap+0x59/0x80
[ 32.081170] do_syscall_64+0x3f/0x90
[ 32.081641] entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[ 32.082282]
[ 32.082497] The buggy address belongs to the object at ffff88800d9b09f8
[ 32.082497] which belongs to the cache vm_area_struct of size 168
[ 32.083953] The buggy address is located 88 bytes inside of
[ 32.083953] freed 168-byte region [ffff88800d9b09f8, ffff88800d9b0aa0)
[ 32.085343]
[ 32.085559] The buggy address belongs to the physical page:
[ 32.086215] page:00000000e32c09d9 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xd9b0
[ 32.087305] memcg:ffff88800e4dd201
[ 32.087734] flags: 0x100000000000200(slab|node=0|zone=1)
[ 32.088371] page_type: 0xffffffff()
[ 32.088815] raw: 0100000000000200 ffff88800879fc80 ffffea00003ac380 dead000000000006
[ 32.089732] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff88800e4dd201
[ 32.090670] page dumped because: kasan: bad access detected
[ 32.091330]
[ 32.091547] Memory state around the buggy address:
[ 32.092121] ffff88800d9b0900: fc fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 32.092978] ffff88800d9b0980: fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc fa
[ 32.093831] >ffff88800d9b0a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 32.094687] ^
[ 32.095380] ffff88800d9b0a80: fb fb fb fb fc fc fc fc fc fc fc fc 00 00 00 00
[ 32.096238] ffff88800d9b0b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 32.097083] ==================================================================
[ 32.097999] Disabling lock debugging due to kernel taint
[ 34.606157] BUG: Bad rss-counter state mm:0000000086ce4df2 type:MM_FILEPAGES val:33
[ 34.607488] BUG: Bad rss-counter state mm:0000000086ce4df2 type:MM_ANONPAGES val:22
[ 35.059892] BUG: Bad rss-counter state mm:00000000a9e18f32 type:MM_FILEPAGES val:33
[ 35.060901] BUG: Bad rss-counter state mm:00000000a9e18f32 type:MM_ANONPAGES val:22
Warning: Permanently added '[localhost]:23100' (ECDSA) to the list of known hosts.
2023/06/19 21:16:55 fuzzer started
2023/06/19 21:16:56 dialing manager at localhost:44161
2023/06/19 21:16:56 checking machine...
2023/06/19 21:16:56 checking revisions...
[ 35.753920] kmemleak: Automatic memory scanning thread ended
2023/06/19 21:16:56 testing simple program...
[ 35.809087] cgroup: Unknown subsys name 'net'
[ 35.851057] cgroup: Unknown subsys name 'rlimit'
executing program
[ 41.477221] general protection fault, probably for non-canonical address 0xe0a0dc2740000016: 0000 [#1] PREEMPT SMP KASAN NOPTI
[ 41.478635] KASAN: maybe wild-memory-access in range [0x0507013a000000b0-0x0507013a000000b7]
[ 41.479637] CPU: 0 PID: 265 Comm: cron Tainted: G B 6.4.0-rc7-next-20230619 #1
[ 41.480684] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 41.481658] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0
[ 41.482350] 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
[ 41.484502] RSP: 0018:ffff88800fbd78a8 EFLAGS: 00010213
[ 41.485145] RAX: ffff888018edc140 RBX: ffff88800fc072f8 RCX: ffffffff844ce9f9
[ 41.485994] RDX: 00a0e02740000016 RSI: 0000000000000008 RDI: ffff888018f2c110
[ 41.486864] RBP: ffff888009aa1bc0 R08: ffff888018f2c110 R09: 0000000000000000
[ 41.487714] R10: 0000000000000000 R11: 00000000000b6996 R12: ffff888018f2c108
[ 41.488583] R13: dffffc0000000000 R14: 0507013a000000b6 R15: ffffffff816e61c0
[ 41.489436] FS: 00007fcd2e21f840(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[ 41.490446] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 41.491146] CR2: 00005634a442a2e8 CR3: 000000000c5e6000 CR4: 0000000000350ef0
[ 41.491989] Call Trace:
[ 41.492307]
[ 41.492594] ? die_addr+0x3c/0xa0
[ 41.493043] ? exc_general_protection+0x125/0x220
[ 41.493654] ? asm_exc_general_protection+0x26/0x30
[ 41.494279] ? __pfx_vma_interval_tree_augment_rotate+0x10/0x10
[ 41.495062] ? __rb_insert_augmented+0x5e9/0x8b0
[ 41.495654] ? __rb_insert_augmented+0x9d/0x8b0
[ 41.496244] ? __rb_insert_augmented+0x5e9/0x8b0
[ 41.496837] vma_prepare+0xa1a/0x11a0
[ 41.497320] __split_vma+0x5af/0x950
[ 41.497793] ? __pfx___split_vma+0x10/0x10
[ 41.498340] ? lock_acquire+0x434/0x4c0
[ 41.498845] do_vmi_align_munmap+0x361/0x11f0
[ 41.499409] ? __pfx_do_vmi_align_munmap+0x10/0x10
[ 41.500018] ? mtree_range_walk+0x632/0x900
[ 41.500564] ? mas_walk+0x5c7/0x7c0
[ 41.501033] do_vmi_munmap+0x1f1/0x2b0
[ 41.501522] mmap_region+0x1f9/0x2660
[ 41.502005] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[ 41.502726] ? __pfx_lock_acquire+0x10/0x10
[ 41.503264] ? __pfx_mmap_region+0x10/0x10
[ 41.503791] ? security_mmap_addr+0x7d/0xa0
[ 41.504322] ? get_unmapped_area+0x1f5/0x3f0
[ 41.504870] do_mmap+0x854/0xf00
[ 41.505312] vm_mmap_pgoff+0x1a6/0x3a0
[ 41.505818] ? __pfx_vm_mmap_pgoff+0x10/0x10
[ 41.506409] ksys_mmap_pgoff+0x3af/0x500
[ 41.506912] do_syscall_64+0x3f/0x90
[ 41.507389] entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[ 41.508045] RIP: 0033:0x7fcd2e541d82
[ 41.508508] 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
[ 41.510666] RSP: 002b:00007ffd00c598c8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[ 41.511577] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fcd2e541d82
[ 41.512432] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007fcd2ddfb000
[ 41.513281] RBP: 00007fcd2ddfb000 R08: 0000000000000009 R09: 0000000000001000
[ 41.514139] R10: 0000000000000812 R11: 0000000000000206 R12: 00005634a4429e00
[ 41.515008] R13: 00007ffd00c598e0 R14: 00007ffd00c59910 R15: 00007ffd00c59c70
[ 41.515870]
[ 41.516161] Modules linked in:
[ 41.516631] ---[ end trace 0000000000000000 ]---
[ 41.517201] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0
[ 41.517879] 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
[ 41.520051] RSP: 0018:ffff88800fbd78a8 EFLAGS: 00010213
[ 41.520719] RAX: ffff888018edc140 RBX: ffff88800fc072f8 RCX: ffffffff844ce9f9
[ 41.521589] RDX: 00a0e02740000016 RSI: 0000000000000008 RDI: ffff888018f2c110
[ 41.522480] RBP: ffff888009aa1bc0 R08: ffff888018f2c110 R09: 0000000000000000
[ 41.523331] R10: 0000000000000000 R11: 00000000000b6996 R12: ffff888018f2c108
[ 41.524211] R13: dffffc0000000000 R14: 0507013a000000b6 R15: ffffffff816e61c0
[ 41.525088] FS: 00007fcd2e21f840(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[ 41.526226] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 41.527136] CR2: 00005634a442a2e8 CR3: 000000000c5e6000 CR4: 0000000000350ef0
executing program
executing program
VM DIAGNOSIS:
21:16:55 Registers:
info registers vcpu 0
RAX=ffff88801830ff58 RBX=0000000000000001 RCX=0000000000000001 RDX=1ffff11003061ebe
RSI=ffffffff846000aa RDI=ffff88801830f5a8 RBP=ffff88801830f600 RSP=ffff88801830f538
R8 =0000000000000001 R9 =ffff88801830f5e8 R10=0000000000038001 R11=00000000000b4fb9
R12=ffff88801830f670 R13=ffff88801830f5f0 R14=ffff888009119b40 R15=ffff88801830f5a8
RIP=ffffffff81130664 RFL=00000282 [--S----] 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 00007f041f8d9900 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=00007f041fe90618 CR3=00000000159e2000 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=563412feff00545000000000000080fe XMM01=6e69676f6c5f6d61702c78756e696c65
XMM02=755f6d61702c74696d7265705f6d6170 XMM03=2c766e655f6d61702c7374696d696c5f
XMM04=6d61702c766e655f6d61702c7374696d XMM05=78696e755f6d61702c74696d7265705f
XMM06=6469756e69676f6c5f6d61702c78756e XMM07=672065736f6c635f6e6f69737365733a
XMM08=61662029286e65706f5f746964756100 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000
info registers vcpu 1
RAX=ffff88806cf35000 RBX=0000000000000001 RCX=ffffffff8450c50e RDX=ffffed100d9e6a01
RSI=0000000000000004 RDI=ffffffff812889a5 RBP=dffffc0000000000 RSP=ffff888008e27e70
R8 =0000000000000000 R9 =ffffed100d9e6a00 R10=ffff88806cf35003 R11=ffff888008c58400
R12=ffffffff85d3bed0 R13=1ffff110011c4fd3 R14=0000000000000000 R15=0000000000000000
RIP=ffffffff8450d49f 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 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=00007fbb8c816470 CR3=0000000009aba000 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=e8cb8478e9056f892f49025d380d5117
XMM02=00000000001221c0ec2efd57dc4c00df XMM03=00000000001252f07fabf2046206c989
XMM04=9d9968d5d83a768800000000000ae988 XMM05=e4cb8bb95a7664b60000000000134df0
XMM06=a3bed95652236bf30000000000133c58 XMM07=e042d86d42eb936e0000000000125cd8
XMM08=7fabf2046206c9890000000000122220 XMM09=00000000000000000000000000000000
XMM10=20200000000020202020202020200000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000