[ 28.767564] BUG: Bad rss-counter state mm:00000000e3e072bd type:MM_FILEPAGES val:33 [ 28.768752] BUG: Bad rss-counter state mm:00000000e3e072bd type:MM_ANONPAGES val:22 [ 28.937585] ================================================================== [ 28.938488] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0 [ 28.939430] Read of size 8 at addr ffff888019528df0 by task sshd/222 [ 28.940248] [ 28.940466] CPU: 1 PID: 222 Comm: sshd Not tainted 6.4.0-rc7-next-20230620 #1 [ 28.941454] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 28.942427] Call Trace: [ 28.942745] [ 28.943035] dump_stack_lvl+0x91/0xf0 [ 28.943545] print_report+0xcc/0x620 [ 28.944054] ? __virt_addr_valid+0x102/0x340 [ 28.944620] ? vma_interval_tree_remove+0xc75/0xec0 [ 28.945245] ? vma_interval_tree_remove+0xc75/0xec0 [ 28.945866] kasan_report+0xbe/0xf0 [ 28.946343] ? vma_interval_tree_remove+0xc75/0xec0 [ 28.946967] vma_interval_tree_remove+0xc75/0xec0 [ 28.947619] vma_prepare+0xc54/0x11a0 [ 28.948112] __split_vma+0x5af/0x950 [ 28.948586] ? __pfx___split_vma+0x10/0x10 [ 28.949120] ? find_held_lock+0x2c/0x110 [ 28.949654] do_vmi_align_munmap+0x2ba/0x11f0 [ 28.950227] ? lock_is_held_type+0x9f/0x120 [ 28.950771] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 28.951386] ? mtree_range_walk+0x632/0x900 [ 28.951982] ? mas_walk+0x5c7/0x7c0 [ 28.952463] do_vmi_munmap+0x1f1/0x2b0 [ 28.952960] mmap_region+0x1f9/0x2660 [ 28.953445] ? vm_mmap_pgoff+0x15c/0x3a0 [ 28.953964] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 28.954682] ? __pfx_lock_acquire+0x10/0x10 [ 28.955224] ? __pfx_mmap_region+0x10/0x10 [ 28.955800] ? security_mmap_addr+0x7d/0xa0 [ 28.956338] ? get_unmapped_area+0x1f5/0x3f0 [ 28.956889] do_mmap+0x854/0xf00 [ 28.957333] vm_mmap_pgoff+0x1a6/0x3a0 [ 28.957833] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 28.958399] ksys_mmap_pgoff+0x3af/0x500 [ 28.958912] do_syscall_64+0x3f/0x90 [ 28.959393] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 28.960069] RIP: 0033:0x7fde54a45d82 [ 28.960530] 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 [ 28.962674] RSP: 002b:00007ffeb83dbca8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 28.963594] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fde54a45d82 [ 28.964452] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007fde53e7f000 [ 28.965302] RBP: 00007fde53e7f000 R08: 0000000000000009 R09: 0000000000001000 [ 28.966155] R10: 0000000000000812 R11: 0000000000000206 R12: 000055d683922980 [ 28.967006] R13: 00007ffeb83dbcc0 R14: 00007ffeb83dbcf0 R15: 00007ffeb83dc050 [ 28.967885] [ 28.968195] [ 28.968412] Allocated by task 213: [ 28.968844] kasan_save_stack+0x22/0x50 [ 28.969358] kasan_set_track+0x25/0x30 [ 28.969853] __kasan_slab_alloc+0x59/0x70 [ 28.970381] kmem_cache_alloc+0x16b/0x370 [ 28.970904] vm_area_dup+0x20/0x160 [ 28.971360] __split_vma+0x170/0x950 [ 28.971857] split_vma+0xc6/0x110 [ 28.972297] mprotect_fixup+0x8d2/0xb30 [ 28.972798] do_mprotect_pkey+0x87e/0xd40 [ 28.973323] __x64_sys_mprotect+0x78/0xc0 [ 28.973854] do_syscall_64+0x3f/0x90 [ 28.974332] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 28.974974] [ 28.975193] Freed by task 213: [ 28.975600] kasan_save_stack+0x22/0x50 [ 28.976111] kasan_set_track+0x25/0x30 [ 28.976606] kasan_save_free_info+0x2b/0x50 [ 28.977146] __kasan_slab_free+0x10a/0x190 [ 28.977683] kmem_cache_free+0x10d/0x4d0 [ 28.978194] rcu_core+0x8c8/0x2860 [ 28.978641] __do_softirq+0x1b7/0x7d4 [ 28.979124] [ 28.979341] Last potentially related work creation: [ 28.979952] kasan_save_stack+0x22/0x50 [ 28.980465] __kasan_record_aux_stack+0x8e/0xa0 [ 28.981049] __call_rcu_common.constprop.0+0x6a/0xb90 [ 28.981700] remove_vma+0x139/0x170 [ 28.982204] do_vmi_align_munmap+0xd4a/0x11f0 [ 28.982775] do_vmi_munmap+0x1f1/0x2b0 [ 28.983268] __vm_munmap+0x138/0x3a0 [ 28.983758] __x64_sys_munmap+0x59/0x80 [ 28.984276] do_syscall_64+0x3f/0x90 [ 28.984769] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 28.985420] [ 28.985641] Second to last potentially related work creation: [ 28.986338] kasan_save_stack+0x22/0x50 [ 28.986839] __kasan_record_aux_stack+0x8e/0xa0 [ 28.987428] __call_rcu_common.constprop.0+0x6a/0xb90 [ 28.988085] remove_vma+0x139/0x170 [ 28.988538] do_vmi_align_munmap+0xd4a/0x11f0 [ 28.989100] do_vmi_munmap+0x1f1/0x2b0 [ 28.989591] mmap_region+0x1f9/0x2660 [ 28.990077] do_mmap+0x854/0xf00 [ 28.990508] vm_mmap_pgoff+0x1a6/0x3a0 [ 28.991003] ksys_mmap_pgoff+0x3af/0x500 [ 28.991535] do_syscall_64+0x3f/0x90 [ 28.992022] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 28.992677] [ 28.992894] The buggy address belongs to the object at ffff888019528d98 [ 28.992894] which belongs to the cache vm_area_struct of size 168 [ 28.994388] The buggy address is located 88 bytes inside of [ 28.994388] freed 168-byte region [ffff888019528d98, ffff888019528e40) [ 28.995837] [ 28.996055] The buggy address belongs to the physical page: [ 28.996729] page:00000000522a4e46 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x19528 [ 28.997842] memcg:ffff88800f682a01 [ 28.998271] anon flags: 0x100000000000200(slab|node=0|zone=1) [ 28.998983] page_type: 0xffffffff() [ 28.999440] raw: 0100000000000200 ffff8880087a0c80 0000000000000000 0000000000000001 [ 29.000367] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff88800f682a01 [ 29.001283] page dumped because: kasan: bad access detected [ 29.001949] [ 29.002170] Memory state around the buggy address: [ 29.002753] ffff888019528c80: fc fc fc fc fc fc 00 00 00 00 00 00 00 00 00 00 [ 29.003628] ffff888019528d00: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc [ 29.004501] >ffff888019528d80: fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb fb [ 29.005361] ^ [ 29.006174] ffff888019528e00: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 29.007046] ffff888019528e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 29.007919] ================================================================== [ 29.008843] Disabling lock debugging due to kernel taint [ 30.855375] BUG: Bad rss-counter state mm:000000002fe5e7bd type:MM_FILEPAGES val:33 [ 30.856424] BUG: Bad rss-counter state mm:000000002fe5e7bd type:MM_ANONPAGES val:22 [ 31.354005] BUG: Bad rss-counter state mm:00000000e9a32459 type:MM_FILEPAGES val:33 [ 31.355109] BUG: Bad rss-counter state mm:00000000e9a32459 type:MM_ANONPAGES val:22 Warning: Permanently added '[localhost]:48919' (ECDSA) to the list of known hosts. 2023/06/20 14:23:11 fuzzer started 2023/06/20 14:23:11 dialing manager at localhost:36067 2023/06/20 14:23:11 checking machine... 2023/06/20 14:23:11 checking revisions... [ 32.100987] kmemleak: Automatic memory scanning thread ended 2023/06/20 14:23:11 testing simple program... [ 32.154088] cgroup: Unknown subsys name 'net' [ 32.191615] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program VM DIAGNOSIS: 14:23:11 Registers: info registers vcpu 0 RAX=00000000000013a5 RBX=00007f6bff23d240 RCX=0000000000000000 RDX=0000000000000000 RSI=00007fffdc48b3b8 RDI=0000000000000000 RBP=00007fffdc48b3f0 RSP=00007fffdc48aea0 R8 =00000000ffffffff R9 =0000000000000009 R10=0000000000000000 R11=0000000000000000 R12=00007fffdc48b410 R13=0000560a65858f08 R14=00007fffdc48b590 R15=0000000000000069 RIP=00007f6bff122e6f RFL=00000246 [---Z-P-] CPL=3 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0033 0000000000000000 ffffffff 00a0fb00 DPL=3 CS64 [-RA] SS =002b 0000000000000000 ffffffff 00c0f300 DPL=3 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 00007f6bfe8ee900 00000000 00000000 GS =0000 0000000000000000 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=00007f9b42c04650 CR3=000000000d694000 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=25252525252525252525252525252525 XMM01=00000000ff00ff000000000000000000 XMM02=00000000ff0000000000000000000000 XMM03=006c616e72756f6a2f646d6574737973 XMM04=a780ab38f81d792000000000000ae988 XMM05=4a4930989f665eba0000000000134570 XMM06=c291bd5c70af25b90000000000133360 XMM07=fb795ef6d657705600000000001219e8 XMM08=4c5359530069253d595449524f495250 XMM09=00000000000000000000000000000000 XMM10=20200000000020202020202020200000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=ffff88806cf35000 RBX=0000000000000001 RCX=ffffffff8451250e RDX=ffffed100d9e6a01 RSI=0000000000000004 RDI=ffffffff81288ac5 RBP=dffffc0000000000 RSP=ffff888008e07e70 R8 =0000000000000000 R9 =ffffed100d9e6a00 R10=ffff88806cf35003 R11=0000000000000001 R12=ffffffff85d3d350 R13=1ffff110011c0fd3 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 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=00007ffe7aaf4568 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=00007ff35141e510000055a2227c7790 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