[ 29.571180] BUG: Bad rss-counter state mm:000000001549bb46 type:MM_FILEPAGES val:33 [ 29.572382] BUG: Bad rss-counter state mm:000000001549bb46 type:MM_ANONPAGES val:22 [ 29.617904] ================================================================== [ 29.618785] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0 [ 29.620003] Read of size 8 at addr ffff88800d8b46b0 by task sshd/220 [ 29.620858] [ 29.621121] CPU: 1 PID: 220 Comm: sshd Not tainted 6.4.0-rc7-next-20230619 #1 [ 29.622226] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 29.623469] Call Trace: [ 29.623858] [ 29.624200] dump_stack_lvl+0x91/0xf0 [ 29.624800] print_report+0xcc/0x620 [ 29.625388] ? __virt_addr_valid+0x102/0x340 [ 29.626069] ? vma_interval_tree_remove+0xc75/0xec0 [ 29.626830] ? vma_interval_tree_remove+0xc75/0xec0 [ 29.627590] kasan_report+0xbe/0xf0 [ 29.628176] ? vma_interval_tree_remove+0xc75/0xec0 [ 29.628906] vma_interval_tree_remove+0xc75/0xec0 [ 29.629476] vma_prepare+0xc54/0x11a0 [ 29.629935] __split_vma+0x5af/0x950 [ 29.630408] ? __pfx___split_vma+0x10/0x10 [ 29.630909] ? find_held_lock+0x2c/0x110 [ 29.631403] do_vmi_align_munmap+0x2ba/0x11f0 [ 29.631940] ? lock_is_held_type+0x9f/0x120 [ 29.632456] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 29.633028] ? mtree_range_walk+0x632/0x900 [ 29.633563] ? mas_walk+0x5c7/0x7c0 [ 29.634035] do_vmi_munmap+0x1f1/0x2b0 [ 29.634532] mmap_region+0x1f9/0x2660 [ 29.635005] ? vm_mmap_pgoff+0x15c/0x3a0 [ 29.635517] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 29.636227] ? __pfx_lock_acquire+0x10/0x10 [ 29.636762] ? __pfx_mmap_region+0x10/0x10 [ 29.637298] ? security_mmap_addr+0x7d/0xa0 [ 29.637817] ? get_unmapped_area+0x1f5/0x3f0 [ 29.638381] do_mmap+0x854/0xf00 [ 29.638825] vm_mmap_pgoff+0x1a6/0x3a0 [ 29.639320] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 29.639882] ksys_mmap_pgoff+0x3af/0x500 [ 29.640388] do_syscall_64+0x3f/0x90 [ 29.640870] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 29.641523] RIP: 0033:0x7f5978367d82 [ 29.641987] 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 [ 29.644110] RSP: 002b:00007ffe5f7e4748 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 29.645031] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f5978367d82 [ 29.645884] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f59777a1000 [ 29.646756] RBP: 00007f59777a1000 R08: 0000000000000009 R09: 0000000000001000 [ 29.647600] R10: 0000000000000812 R11: 0000000000000206 R12: 000055cd1cfb1ec0 [ 29.648450] R13: 00007ffe5f7e4760 R14: 00007ffe5f7e4790 R15: 00007ffe5f7e4af0 [ 29.649304] [ 29.649598] [ 29.649818] Allocated by task 212: [ 29.650263] kasan_save_stack+0x22/0x50 [ 29.650772] kasan_set_track+0x25/0x30 [ 29.651260] __kasan_slab_alloc+0x59/0x70 [ 29.651781] kmem_cache_alloc+0x16b/0x370 [ 29.652283] vm_area_dup+0x20/0x160 [ 29.652733] __split_vma+0x170/0x950 [ 29.653196] split_vma+0xc6/0x110 [ 29.653633] mprotect_fixup+0x8d2/0xb30 [ 29.654139] do_mprotect_pkey+0x87e/0xd40 [ 29.654667] __x64_sys_mprotect+0x78/0xc0 [ 29.655181] do_syscall_64+0x3f/0x90 [ 29.655639] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 29.656281] [ 29.656502] Freed by task 212: [ 29.656897] kasan_save_stack+0x22/0x50 [ 29.657406] kasan_set_track+0x25/0x30 [ 29.657897] kasan_save_free_info+0x2b/0x50 [ 29.658439] __kasan_slab_free+0x10a/0x190 [ 29.658969] kmem_cache_free+0x10d/0x4d0 [ 29.659470] rcu_core+0x8c8/0x2860 [ 29.659917] __do_softirq+0x1b7/0x7d4 [ 29.660388] [ 29.660601] Last potentially related work creation: [ 29.661182] kasan_save_stack+0x22/0x50 [ 29.661692] __kasan_record_aux_stack+0x8e/0xa0 [ 29.662259] __call_rcu_common.constprop.0+0x6a/0xb90 [ 29.662907] remove_vma+0x139/0x170 [ 29.663444] do_vmi_align_munmap+0xd4a/0x11f0 [ 29.664011] do_vmi_munmap+0x1f1/0x2b0 [ 29.664498] __vm_munmap+0x138/0x3a0 [ 29.664958] __x64_sys_munmap+0x59/0x80 [ 29.665450] do_syscall_64+0x3f/0x90 [ 29.665914] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 29.666562] [ 29.666772] Second to last potentially related work creation: [ 29.667456] kasan_save_stack+0x22/0x50 [ 29.667967] __kasan_record_aux_stack+0x8e/0xa0 [ 29.668542] __call_rcu_common.constprop.0+0x6a/0xb90 [ 29.669186] remove_vma+0x139/0x170 [ 29.669634] do_vmi_align_munmap+0xd4a/0x11f0 [ 29.670182] do_vmi_munmap+0x1f1/0x2b0 [ 29.670674] mmap_region+0x1f9/0x2660 [ 29.671150] do_mmap+0x854/0xf00 [ 29.671579] vm_mmap_pgoff+0x1a6/0x3a0 [ 29.672074] ksys_mmap_pgoff+0x3af/0x500 [ 29.672580] do_syscall_64+0x3f/0x90 [ 29.673048] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 29.673670] [ 29.673890] The buggy address belongs to the object at ffff88800d8b4658 [ 29.673890] which belongs to the cache vm_area_struct of size 168 [ 29.675396] The buggy address is located 88 bytes inside of [ 29.675396] freed 168-byte region [ffff88800d8b4658, ffff88800d8b4700) [ 29.676794] [ 29.677016] The buggy address belongs to the physical page: [ 29.677688] page:00000000cd46406b refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xd8b4 [ 29.678792] memcg:ffff88800e02cf01 [ 29.679226] anon flags: 0x100000000000200(slab|node=0|zone=1) [ 29.679932] page_type: 0xffffffff() [ 29.680389] raw: 0100000000000200 ffff88800879fc80 ffffea0000398bc0 dead000000000007 [ 29.681312] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff88800e02cf01 [ 29.682229] page dumped because: kasan: bad access detected [ 29.682925] [ 29.683147] Memory state around the buggy address: [ 29.683750] ffff88800d8b4580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.684623] ffff88800d8b4600: fb fb fb fc fc fc fc fc fc fc fc fa fb fb fb fb [ 29.685515] >ffff88800d8b4680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.686402] ^ [ 29.686997] ffff88800d8b4700: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 29.687880] ffff88800d8b4780: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc [ 29.688748] ================================================================== [ 29.689687] Disabling lock debugging due to kernel taint [ 32.079784] BUG: Bad rss-counter state mm:00000000ead23e49 type:MM_FILEPAGES val:33 [ 32.081057] BUG: Bad rss-counter state mm:00000000ead23e49 type:MM_ANONPAGES val:22 [ 32.548590] BUG: Bad rss-counter state mm:0000000047519efd type:MM_FILEPAGES val:33 [ 32.550043] BUG: Bad rss-counter state mm:0000000047519efd type:MM_ANONPAGES val:22 Warning: Permanently added '[localhost]:35189' (ECDSA) to the list of known hosts. 2023/06/19 22:19:20 fuzzer started 2023/06/19 22:19:20 dialing manager at localhost:44161 2023/06/19 22:19:20 checking machine... 2023/06/19 22:19:20 checking revisions... [ 33.306756] kmemleak: Automatic memory scanning thread ended 2023/06/19 22:19:21 testing simple program... [ 33.353174] cgroup: Unknown subsys name 'net' [ 33.414120] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program VM DIAGNOSIS: 22:19:19 Registers: info registers vcpu 0 RAX=ffff88800d17a528 RBX=ffff88800f1f7200 RCX=ffffffff812e00e5 RDX=dffffc0000000000 RSI=ffffffff87b86f80 RDI=ffff88800d29d1a8 RBP=ffff88800d29d130 RSP=ffff88800f8b7528 R8 =0000000000000001 R9 =ffffed1001f16e9d R10=0000000000000003 R11=00000000000c0000 R12=0000000000000287 R13=ffff88800d29d198 R14=ffff88800d215b18 R15=ffffffff87b86f80 RIP=ffffffff844cc22a 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 00007fc62655d900 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=00007fc625999aa0 CR3=0000000008eda000 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=ffffffffffffffffffffffffffffffff XMM01=30306234386136303638616663356134 XMM02=38303062343861363036386166633561 XMM03=2f6c616e72756f6a2f676f6c2f6e7572 XMM04=20ba2f11d87f835600000000000ae988 XMM05=096b4b92fcab9e860000000000136330 XMM06=061ec676a761ba8400000000001350d0 XMM07=00000000000000000000000000000000 XMM08=415453454d49545f454d49544c414552 XMM09=00000000000000000000000000000000 XMM10=20200000000020202020202020200000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000005 RBX=ffffffff85dfcf2c RCX=ffffffff8180ee7d RDX=0000000000000005 RSI=ffffffff86137cac RDI=ffffffff85dfcf14 RBP=ffffffff85dfcf14 RSP=ffff88806cf099b8 R8 =ffffffff86137cac R9 =ffff88806cf09ab0 R10=0000000000038001 R11=0000000000020ed0 R12=ffffffff85dfcf28 R13=ffffffff85dfcf14 R14=ffffffff85dfcf14 R15=dffffc0000000000 RIP=ffffffff8112fc6b RFL=00000206 [-----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 =0000 0000000000000000 00000000 00000000 DS =0000 0000000000000000 00000000 00000000 FS =0000 00007f19d604d900 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=00007f19d67c030c CR3=000000000ed5c000 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