[ 23.484229] BUG: Bad rss-counter state mm:0000000089cac952 type:MM_FILEPAGES val:33 [ 23.485858] BUG: Bad rss-counter state mm:0000000089cac952 type:MM_ANONPAGES val:22 [[0;32m OK [0m] Finished [0;1;39mUpdate UTMP about System Runlevel Changes[0m. [ 23.860904] ================================================================== [ 23.862093] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0 [ 23.863247] Read of size 8 at addr ffff888019aeed08 by task sshd/219 [ 23.864366] [ 23.864652] CPU: 1 PID: 219 Comm: sshd Not tainted 6.4.0-rc7-next-20230620 #1 [ 23.865531] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 23.866609] Call Trace: [ 23.866917] <TASK> [ 23.867186] dump_stack_lvl+0x91/0xf0 [ 23.867653] print_report+0xcc/0x620 [ 23.868112] ? __virt_addr_valid+0x102/0x340 [ 23.868655] ? vma_interval_tree_remove+0xc75/0xec0 [ 23.869249] ? vma_interval_tree_remove+0xc75/0xec0 [ 23.869840] kasan_report+0xbe/0xf0 [ 23.870292] ? vma_interval_tree_remove+0xc75/0xec0 [ 23.870886] vma_interval_tree_remove+0xc75/0xec0 [ 23.871458] vma_prepare+0xc54/0x11a0 [ 23.871911] __split_vma+0x5af/0x950 [ 23.872361] ? __pfx___split_vma+0x10/0x10 [ 23.872889] ? find_held_lock+0x2c/0x110 [ 23.873383] do_vmi_align_munmap+0x2ba/0x11f0 [ 23.873923] ? lock_is_held_type+0x9f/0x120 [ 23.874445] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 23.875023] ? mtree_range_walk+0x632/0x900 [ 23.875549] ? mas_walk+0x5c7/0x7c0 [ 23.876067] do_vmi_munmap+0x1f1/0x2b0 [ 23.876658] mmap_region+0x1f9/0x2660 [ 23.877221] ? vm_mmap_pgoff+0x15c/0x3a0 [ 23.877829] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 23.878666] ? __pfx_lock_acquire+0x10/0x10 [ 23.879287] ? __pfx_mmap_region+0x10/0x10 [ 23.879916] ? security_mmap_addr+0x7d/0xa0 [ 23.880555] ? get_unmapped_area+0x1f5/0x3f0 [ 23.881201] do_mmap+0x854/0xf00 [ 23.881715] vm_mmap_pgoff+0x1a6/0x3a0 [ 23.882294] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 23.882960] ksys_mmap_pgoff+0x3af/0x500 [ 23.883560] do_syscall_64+0x3f/0x90 [ 23.884133] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 23.884933] RIP: 0033:0x7fe456af2d82 [ 23.885477] 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 [ 23.888053] RSP: 002b:00007ffd461a56d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 23.889157] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fe456af2d82 [ 23.890170] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007fe455f2c000 [ 23.891197] RBP: 00007fe455f2c000 R08: 0000000000000009 R09: 0000000000001000 [ 23.892209] R10: 0000000000000812 R11: 0000000000000206 R12: 000056064bf4eec0 [ 23.893250] R13: 00007ffd461a56f0 R14: 00007ffd461a5720 R15: 00007ffd461a5a80 [ 23.894283] </TASK> [ 23.894631] [ 23.894889] Allocated by task 206: [ 23.895409] kasan_save_stack+0x22/0x50 [ 23.896025] kasan_set_track+0x25/0x30 [ 23.896641] __kasan_slab_alloc+0x59/0x70 [ 23.897268] kmem_cache_alloc+0x16b/0x370 [ 23.897897] vm_area_dup+0x20/0x160 [ 23.898443] __split_vma+0x170/0x950 [ 23.899007] split_vma+0xc6/0x110 [ 23.899541] mprotect_fixup+0x8d2/0xb30 [ 23.900159] do_mprotect_pkey+0x87e/0xd40 [ 23.900810] __x64_sys_mprotect+0x78/0xc0 [ 23.901437] do_syscall_64+0x3f/0x90 [ 23.902015] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 23.902792] [ 23.903046] Freed by task 206: [ 23.903515] kasan_save_stack+0x22/0x50 [ 23.904213] kasan_set_track+0x25/0x30 [ 23.904833] kasan_save_free_info+0x2b/0x50 [ 23.905484] __kasan_slab_free+0x10a/0x190 [ 23.906136] kmem_cache_free+0x10d/0x4d0 [ 23.906760] rcu_core+0x8c8/0x2860 [ 23.907300] __do_softirq+0x1b7/0x7d4 [ 23.907885] [ 23.908145] Last potentially related work creation: [ 23.908812] kasan_save_stack+0x22/0x50 [ 23.909367] __kasan_record_aux_stack+0x8e/0xa0 [ 23.909994] __call_rcu_common.constprop.0+0x6a/0xb90 [ 23.910698] remove_vma+0x139/0x170 [ 23.911206] do_vmi_align_munmap+0xd4a/0x11f0 [ 23.911828] do_vmi_munmap+0x1f1/0x2b0 [ 23.912366] __vm_munmap+0x138/0x3a0 [ 23.912910] __x64_sys_munmap+0x59/0x80 [ 23.913459] do_syscall_64+0x3f/0x90 [ 23.913990] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 23.914699] [ 23.914944] The buggy address belongs to the object at ffff888019aeecb0 [ 23.914944] which belongs to the cache vm_area_struct of size 168 [ 23.916581] The buggy address is located 88 bytes inside of [ 23.916581] freed 168-byte region [ffff888019aeecb0, ffff888019aeed58) [ 23.918155] [ 23.918420] The buggy address belongs to the physical page: [ 23.919166] page:0000000074d65789 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x19aee [ 23.920260] memcg:ffff888019aa5f01 [ 23.920707] flags: 0x100000000000200(slab|node=0|zone=1) [ 23.921352] page_type: 0xffffffff() [ 23.921810] raw: 0100000000000200 ffff8880087a0c80 dead000000000122 0000000000000000 [ 23.922714] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff888019aa5f01 [ 23.923620] page dumped because: kasan: bad access detected [ 23.924288] [ 23.924513] Memory state around the buggy address: [ 23.925094] ffff888019aeec00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc [ 23.925946] ffff888019aeec80: fc fc fc fc fc fc fa fb fb fb fb fb fb fb fb fb [ 23.926787] >ffff888019aeed00: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc [ 23.927641] ^ [ 23.928079] ffff888019aeed80: fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb fb [ 23.928939] ffff888019aeee00: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 23.929788] ================================================================== [ 23.930812] Disabling lock debugging due to kernel taint Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 25.279545] BUG: Bad rss-counter state mm:0000000043e4acf5 type:MM_FILEPAGES val:33 [ 25.280101] BUG: Bad rss-counter state mm:0000000043e4acf5 type:MM_ANONPAGES val:22 [ 25.733718] BUG: Bad rss-counter state mm:000000004eeee93c type:MM_FILEPAGES val:33 [ 25.734774] BUG: Bad rss-counter state mm:000000004eeee93c type:MM_ANONPAGES val:22 Warning: Permanently added '[localhost]:26427' (ECDSA) to the list of known hosts. [ 25.853403] general protection fault, probably for non-canonical address 0xe0db1c23e000001d: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 25.854838] KASAN: maybe wild-memory-access in range [0x06d9011f000000e8-0x06d9011f000000ef] [ 25.855953] CPU: 0 PID: 237 Comm: sshd Tainted: G B 6.4.0-rc7-next-20230620 #1 [ 25.857015] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 25.858022] RIP: 0010:vma_interval_tree_insert+0x114/0x400 [ 25.858729] 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 [ 25.860915] RSP: 0018:ffff888009d478a8 EFLAGS: 00010217 [ 25.861566] RAX: 00db2023e000001d RBX: 06d9011f000000d5 RCX: 0000000000000000 [ 25.862442] RDX: ffff888016198000 RSI: ffffffff816e6c79 RDI: 06d9011f000000ed [ 25.863318] RBP: dffffc0000000000 R08: 0000000000000006 R09: 0000000000000002 [ 25.864184] R10: 0000000000000000 R11: 00000000000b6a61 R12: 0000000000000004 [ 25.865069] R13: 0000000000000002 R14: ffff88801c992d98 R15: ffff88800db69cb8 [ 25.865955] FS: 00007f212852d900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 25.866949] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.867678] CR2: 00007f21284f9000 CR3: 000000000e128000 CR4: 0000000000350ef0 [ 25.868578] Call Trace: [ 25.868906] <TASK> [ 25.869202] ? die_addr+0x3c/0xa0 [ 25.869667] ? exc_general_protection+0x125/0x220 [ 25.870319] ? asm_exc_general_protection+0x26/0x30 [ 25.870956] ? vma_interval_tree_insert+0x109/0x400 [ 25.871590] ? vma_interval_tree_insert+0x114/0x400 [ 25.872245] ? vma_interval_tree_insert+0x109/0x400 [ 25.872892] vma_prepare+0xa1a/0x11a0 [ 25.873378] __split_vma+0x5af/0x950 [ 25.873862] ? __pfx___split_vma+0x10/0x10 [ 25.874398] ? lock_acquire+0x434/0x4c0 [ 25.874913] do_vmi_align_munmap+0x361/0x11f0 [ 25.875493] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 25.876111] ? mtree_range_walk+0x632/0x900 [ 25.876700] ? mas_walk+0x5c7/0x7c0 [ 25.877191] do_vmi_munmap+0x1f1/0x2b0 [ 25.877693] mmap_region+0x1f9/0x2660 [ 25.878191] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 25.878922] ? __pfx_lock_acquire+0x10/0x10 [ 25.879460] ? __pfx_mmap_region+0x10/0x10 [ 25.879999] ? security_mmap_addr+0x7d/0xa0 [ 25.880548] ? get_unmapped_area+0x1f5/0x3f0 [ 25.881123] do_mmap+0x854/0xf00 [ 25.881580] vm_mmap_pgoff+0x1a6/0x3a0 [ 25.882104] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 25.882688] ksys_mmap_pgoff+0x3af/0x500 [ 25.883214] do_syscall_64+0x3f/0x90 [ 25.883714] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 25.884388] RIP: 0033:0x7f21290bfd82 [ 25.884892] 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 [ 25.887105] RSP: 002b:00007ffde8961598 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 25.888039] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f21290bfd82 [ 25.888927] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f21284f4000 [ 25.889807] RBP: 00007f21284f4000 R08: 0000000000000009 R09: 0000000000001000 [ 25.890685] R10: 0000000000000812 R11: 0000000000000206 R12: 00005603cd5473a0 [ 25.891556] R13: 00007ffde89615b0 R14: 00007ffde89615e0 R15: 00007ffde8961940 [ 25.892455] </TASK> [ 25.892760] Modules linked in: [ 25.893325] ---[ end trace 0000000000000000 ]--- [ 25.894163] RIP: 0010:vma_interval_tree_insert+0x114/0x400 [ 25.895269] 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 [ 25.897697] RSP: 0018:ffff888009d478a8 EFLAGS: 00010217 [ 25.898551] RAX: 00db2023e000001d RBX: 06d9011f000000d5 RCX: 0000000000000000 [ 25.899616] RDX: ffff888016198000 RSI: ffffffff816e6c79 RDI: 06d9011f000000ed [ 25.900727] RBP: dffffc0000000000 R08: 0000000000000006 R09: 0000000000000002 [ 25.901719] R10: 0000000000000000 R11: 00000000000b6a61 R12: 0000000000000004 [ 25.902569] R13: 0000000000000002 R14: ffff88801c992d98 R15: ffff88800db69cb8 [ 25.903445] FS: 00007f212852d900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 25.904446] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.905169] CR2: 00007f21284f9000 CR3: 000000000e128000 CR4: 0000000000350ef0 VM DIAGNOSIS: 01:15:27 Registers: info registers vcpu 0 RAX=dffffc0000000000 RBX=ffffffff84536004 RCX=ffffffff864bce01 RDX=1ffff1100d9c135e RSI=0000000000000000 RDI=ffffffff84536004 RBP=ffffffff84536004 RSP=ffff88806ce09a50 R8 =ffffffff864bce30 R9 =ffff88806ce09ad8 R10=0000000000038001 R11=00000000000b6d7d R12=ffff88806ce09b60 R13=0000000000000000 R14=ffff888016ac51c0 R15=ffff88800dfed670 RIP=ffffffff811fc6f0 RFL=00000292 [--S-A--] 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 00007eff742c1900 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=00007eff74876650 CR3=000000000eea0000 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=00000000000000000000000000000000 XMM01=000000000000000000000000000000ff XMM02=000000000000000000000000000000ff XMM03=5320444f4854454d5f54505952434e45 XMM04=40404040404040404040404040404040 XMM05=5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a XMM06=20202020202020202020202020202020 XMM07=00000000000000000000000000000000 XMM08=ffbc64ffffbc44ffffbc34ffffbc9f00 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 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=ffff888008c04400 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=00007fc7ab190fc0 CR3=000000000d69a000 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=61bb6216ae5abca9874d9b8fa7747249 XMM02=2c67c8bc2e329bc3000000000011be30 XMM03=fb795ef6d6577056000000000011fb88 XMM04=3dcdc23d9761cda900000000000ae988 XMM05=e4cb8bb95a7664b60000000000131cb8 XMM06=e6ada0c406f066750000000000130e90 XMM07=e042d86d42eb936e0000000000121250 XMM08=235e4c95b10e704c000000000011be90 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000