Starting Update UTMP about System Runlevel Changes... [ 23.590526] BUG: Bad rss-counter state mm:00000000e4f82c29 type:MM_FILEPAGES val:33 [ 23.591471] BUG: Bad rss-counter state mm:00000000e4f82c29 type:MM_ANONPAGES val:22 [ OK ] Finished Update UTMP about System Runlevel Changes. [ 23.903947] ================================================================== [ 23.903964] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0 [ 23.904012] Read of size 8 at addr ffff88801a1c13f8 by task sshd/219 [ 23.904034] [ 23.904040] CPU: 0 PID: 219 Comm: sshd Not tainted 6.4.0-rc7-next-20230620 #1 [ 23.904070] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 23.904085] Call Trace: [ 23.904093] [ 23.904102] dump_stack_lvl+0x91/0xf0 [ 23.904146] print_report+0xcc/0x620 [ 23.904192] ? __virt_addr_valid+0x102/0x340 [ 23.904225] ? vma_interval_tree_remove+0xc75/0xec0 [ 23.904261] ? vma_interval_tree_remove+0xc75/0xec0 [ 23.904296] kasan_report+0xbe/0xf0 [ 23.904343] ? vma_interval_tree_remove+0xc75/0xec0 [ 23.904383] vma_interval_tree_remove+0xc75/0xec0 [ 23.904423] vma_prepare+0xc54/0x11a0 [ 23.904455] __split_vma+0x5af/0x950 [ 23.904490] ? __pfx___split_vma+0x10/0x10 [ 23.904532] ? find_held_lock+0x2c/0x110 [ 23.904578] do_vmi_align_munmap+0x2ba/0x11f0 [ 23.904617] ? lock_is_held_type+0x9f/0x120 [ 23.904656] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 23.904696] ? mtree_range_walk+0x632/0x900 [ 23.904748] ? mas_walk+0x5c7/0x7c0 [ 23.904796] do_vmi_munmap+0x1f1/0x2b0 [ 23.904833] mmap_region+0x1f9/0x2660 [ 23.904869] ? vm_mmap_pgoff+0x15c/0x3a0 [ 23.904907] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 23.904942] ? __pfx_lock_acquire+0x10/0x10 [ 23.904974] ? __pfx_mmap_region+0x10/0x10 [ 23.905013] ? security_mmap_addr+0x7d/0xa0 [ 23.905043] ? get_unmapped_area+0x1f5/0x3f0 [ 23.905076] do_mmap+0x854/0xf00 [ 23.905114] vm_mmap_pgoff+0x1a6/0x3a0 [ 23.905154] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 23.905199] ksys_mmap_pgoff+0x3af/0x500 [ 23.905233] do_syscall_64+0x3f/0x90 [ 23.905301] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 23.905350] RIP: 0033:0x7fe2d8f48d82 [ 23.905371] 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 [ 23.905399] RSP: 002b:00007ffcd54dd778 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 23.905427] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fe2d8f48d82 [ 23.905447] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007fe2d8382000 [ 23.905465] RBP: 00007fe2d8382000 R08: 0000000000000009 R09: 0000000000001000 [ 23.905484] R10: 0000000000000812 R11: 0000000000000206 R12: 000055cadab40d90 [ 23.905502] R13: 00007ffcd54dd790 R14: 00007ffcd54dd7c0 R15: 00007ffcd54ddb20 [ 23.905531] [ 23.905539] [ 23.905543] Allocated by task 205: [ 23.905554] kasan_save_stack+0x22/0x50 [ 23.905595] kasan_set_track+0x25/0x30 [ 23.905633] __kasan_slab_alloc+0x59/0x70 [ 23.905675] kmem_cache_alloc+0x16b/0x370 [ 23.905709] vm_area_dup+0x20/0x160 [ 23.905735] __split_vma+0x170/0x950 [ 23.905764] split_vma+0xc6/0x110 [ 23.905793] mprotect_fixup+0x8d2/0xb30 [ 23.905831] do_mprotect_pkey+0x87e/0xd40 [ 23.905869] __x64_sys_mprotect+0x78/0xc0 [ 23.905908] do_syscall_64+0x3f/0x90 [ 23.905947] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 23.905992] [ 23.905996] Freed by task 218: [ 23.906007] kasan_save_stack+0x22/0x50 [ 23.906046] kasan_set_track+0x25/0x30 [ 23.906085] kasan_save_free_info+0x2b/0x50 [ 23.906116] __kasan_slab_free+0x10a/0x190 [ 23.906158] kmem_cache_free+0x10d/0x4d0 [ 23.906193] rcu_core+0x8c8/0x2860 [ 23.906218] __do_softirq+0x1b7/0x7d4 [ 23.906250] [ 23.906254] Last potentially related work creation: [ 23.906261] kasan_save_stack+0x22/0x50 [ 23.906300] __kasan_record_aux_stack+0x8e/0xa0 [ 23.906329] __call_rcu_common.constprop.0+0x6a/0xb90 [ 23.906374] remove_vma+0x139/0x170 [ 23.906397] do_vmi_align_munmap+0xd4a/0x11f0 [ 23.906429] do_vmi_munmap+0x1f1/0x2b0 [ 23.906460] __vm_munmap+0x138/0x3a0 [ 23.906490] __x64_sys_munmap+0x59/0x80 [ 23.906523] do_syscall_64+0x3f/0x90 [ 23.906561] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 23.906606] [ 23.906610] The buggy address belongs to the object at ffff88801a1c13a0 [ 23.906610] which belongs to the cache vm_area_struct of size 168 [ 23.906632] The buggy address is located 88 bytes inside of [ 23.906632] freed 168-byte region [ffff88801a1c13a0, ffff88801a1c1448) [ 23.906660] [ 23.906664] The buggy address belongs to the physical page: [ 23.906672] page:00000000a5bb13c5 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1a1c1 [ 23.906702] memcg:ffff88801a119a01 [ 23.906711] flags: 0x100000000000200(slab|node=0|zone=1) [ 23.906732] page_type: 0xffffffff() [ 23.906756] raw: 0100000000000200 ffff8880087a0c80 dead000000000122 0000000000000000 [ 23.906783] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff88801a119a01 [ 23.906798] page dumped because: kasan: bad access detected [ 23.906807] [ 23.906811] Memory state around the buggy address: [ 23.906822] ffff88801a1c1280: fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 00 [ 23.906841] ffff88801a1c1300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [ 23.906859] >ffff88801a1c1380: fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb [ 23.906873] ^ [ 23.906888] ffff88801a1c1400: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 23.906906] ffff88801a1c1480: fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.906920] ================================================================== [ 23.907069] Disabling lock debugging due to kernel taint Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 25.568748] BUG: Bad rss-counter state mm:00000000ceeea641 type:MM_FILEPAGES val:33 [ 25.569453] BUG: Bad rss-counter state mm:00000000ceeea641 type:MM_ANONPAGES val:22 [ 25.993525] BUG: Bad rss-counter state mm:00000000aff6d57d type:MM_FILEPAGES val:33 [ 25.994455] BUG: Bad rss-counter state mm:00000000aff6d57d type:MM_ANONPAGES val:22 Warning: Permanently added '[localhost]:43825' (ECDSA) to the list of known hosts. [ 26.120076] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 26.121496] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 26.122390] CPU: 0 PID: 237 Comm: sshd Tainted: G B 6.4.0-rc7-next-20230620 #1 [ 26.123416] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 26.124509] RIP: 0010:__rb_insert_augmented+0x78/0x8b0 [ 26.125175] Code: ea 48 c1 ea 03 42 80 3c 2a 00 0f 85 65 05 00 00 4c 8b 65 00 41 f6 c4 01 0f 85 18 05 00 00 4d 8d 44 24 08 4c 89 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 [ 26.127337] RSP: 0018:ffff88801a39f8a8 EFLAGS: 00010212 [ 26.127980] RAX: ffff888019bb0fb8 RBX: ffff88801a1cbb20 RCX: 1ffff11003439764 [ 26.128834] RDX: 0000000000000001 RSI: ffff888019bb0fb8 RDI: ffff88801a1cbb20 [ 26.129695] RBP: ffff88801a1c13e0 R08: 0000000000000008 R09: 0000000000000000 [ 26.130554] R10: 0000000000000000 R11: 00000000000b6a61 R12: 0000000000000000 [ 26.131402] R13: dffffc0000000000 R14: ffff88801a39f988 R15: ffffffff816e6340 [ 26.132260] FS: 00007f95a3c7a900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 26.133225] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.133953] CR2: 00007f95a3c4d000 CR3: 000000000e996000 CR4: 0000000000350ef0 [ 26.134827] Call Trace: [ 26.135150] [ 26.135439] ? die_addr+0x3c/0xa0 [ 26.135885] ? exc_general_protection+0x125/0x220 [ 26.136507] ? asm_exc_general_protection+0x26/0x30 [ 26.137147] ? __pfx_vma_interval_tree_augment_rotate+0x10/0x10 [ 26.137898] ? __rb_insert_augmented+0x78/0x8b0 [ 26.138498] ? vma_interval_tree_insert+0x23a/0x400 [ 26.139124] vma_prepare+0xa1a/0x11a0 [ 26.139607] __split_vma+0x5af/0x950 [ 26.140082] ? __pfx___split_vma+0x10/0x10 [ 26.140619] ? lock_acquire+0x434/0x4c0 [ 26.141118] do_vmi_align_munmap+0x361/0x11f0 [ 26.141697] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 26.142309] ? mtree_range_walk+0x632/0x900 [ 26.142874] ? mas_walk+0x5c7/0x7c0 [ 26.143348] do_vmi_munmap+0x1f1/0x2b0 [ 26.143847] mmap_region+0x1f9/0x2660 [ 26.144331] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 26.145043] ? __pfx_lock_acquire+0x10/0x10 [ 26.145602] ? __pfx_mmap_region+0x10/0x10 [ 26.146135] ? security_mmap_addr+0x7d/0xa0 [ 26.146675] ? get_unmapped_area+0x1f5/0x3f0 [ 26.147220] do_mmap+0x854/0xf00 [ 26.147665] vm_mmap_pgoff+0x1a6/0x3a0 [ 26.148166] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 26.148739] ksys_mmap_pgoff+0x3af/0x500 [ 26.149247] do_syscall_64+0x3f/0x90 [ 26.149740] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 26.150388] RIP: 0033:0x7f95a480cd82 [ 26.150848] 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 [ 26.152987] RSP: 002b:00007ffef97d1268 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 26.153913] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f95a480cd82 [ 26.154761] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f95a3c46000 [ 26.155617] RBP: 00007f95a3c46000 R08: 0000000000000009 R09: 0000000000001000 [ 26.156460] R10: 0000000000000812 R11: 0000000000000206 R12: 000055f724f97d90 [ 26.157309] R13: 00007ffef97d1280 R14: 00007ffef97d12b0 R15: 00007ffef97d1610 [ 26.158166] [ 26.158456] Modules linked in: [ 26.159158] ---[ end trace 0000000000000000 ]--- [ 26.159788] RIP: 0010:__rb_insert_augmented+0x78/0x8b0 [ 26.160442] Code: ea 48 c1 ea 03 42 80 3c 2a 00 0f 85 65 05 00 00 4c 8b 65 00 41 f6 c4 01 0f 85 18 05 00 00 4d 8d 44 24 08 4c 89 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 [ 26.163003] RSP: 0018:ffff88801a39f8a8 EFLAGS: 00010212 [ 26.164006] RAX: ffff888019bb0fb8 RBX: ffff88801a1cbb20 RCX: 1ffff11003439764 [ 26.165013] RDX: 0000000000000001 RSI: ffff888019bb0fb8 RDI: ffff88801a1cbb20 [ 26.166065] RBP: ffff88801a1c13e0 R08: 0000000000000008 R09: 0000000000000000 [ 26.167034] R10: 0000000000000000 R11: 00000000000b6a61 R12: 0000000000000000 [ 26.167907] R13: dffffc0000000000 R14: ffff88801a39f988 R15: ffffffff816e6340 [ 26.168784] FS: 00007f95a3c7a900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 26.169781] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.170478] CR2: 00007f95a3c4d000 CR3: 000000000e996000 CR4: 0000000000350ef0 VM DIAGNOSIS: 17:53:40 Registers: info registers vcpu 0 RAX=dffffc0000000000 RBX=ffff888016578a70 RCX=0000000000000001 RDX=0000000000000001 RSI=0000000000000000 RDI=ffff888016578ae0 RBP=ffff888015b2d1c1 RSP=ffff88800fd67e28 R8 =0000000000000001 R9 =0000000000000000 R10=ffff888016578a7f R11=0000000000000000 R12=1ffff11001facfc8 R13=ffff888016578a78 R14=ffff888015b2d1c0 R15=ffff888016578940 RIP=ffffffff812d8e6e RFL=00000246 [---Z-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 00007fe78be6d900 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=00007fe78c9c1044 CR3=0000000008c5c000 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=00000000000000000000000000000000 XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000 XMM06=313d6563636120322e322e202e30313d XMM07=672065736f6c635f6e6f69737365733a XMM08=652075253d64692073253d706f000000 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=00007fa37beb8df0 CR3=000000000cab8000 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=3605401f0e5994807e414a128dc44cad XMM02=000000000011b518eff9b2d0a8fce9cb XMM03=000000000011b5e82c67c8bc2e329bc3 XMM04=b3efb6e24663d32500000000000ae988 XMM05=dfcdbad4f1609c370000000000131488 XMM06=983500c365ff3f980000000000130640 XMM07=e042d86d42eb936e000000000011cd48 XMM08=75a3ac6977c885a0000000000011b5e8 XMM09=00000000000000000000000000000000 XMM10=20200000000020202020202020200000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000