[ OK ] Finished Update UTMP about System Runlevel Changes. [ 23.595774] BUG: Bad rss-counter state mm:00000000d0c81da4 type:MM_FILEPAGES val:33 [ 23.596963] BUG: Bad rss-counter state mm:00000000d0c81da4 type:MM_ANONPAGES val:22 [ 23.902240] ================================================================== [ 23.903138] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0 [ 23.903849] Read of size 8 at addr ffff88801ab2c3f8 by task sshd/221 [ 23.904616] [ 23.904782] CPU: 1 PID: 221 Comm: sshd Not tainted 6.4.0-rc7-next-20230620 #1 [ 23.905439] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 23.906177] Call Trace: [ 23.906431] [ 23.906649] dump_stack_lvl+0x91/0xf0 [ 23.907024] print_report+0xcc/0x620 [ 23.907392] ? __virt_addr_valid+0x102/0x340 [ 23.907813] ? vma_interval_tree_remove+0xc75/0xec0 [ 23.908282] ? vma_interval_tree_remove+0xc75/0xec0 [ 23.908751] kasan_report+0xbe/0xf0 [ 23.909117] ? vma_interval_tree_remove+0xc75/0xec0 [ 23.909592] vma_interval_tree_remove+0xc75/0xec0 [ 23.910053] vma_prepare+0xc54/0x11a0 [ 23.910427] __split_vma+0x5af/0x950 [ 23.910790] ? __pfx___split_vma+0x10/0x10 [ 23.911197] ? find_held_lock+0x2c/0x110 [ 23.911595] do_vmi_align_munmap+0x2ba/0x11f0 [ 23.912028] ? lock_is_held_type+0x9f/0x120 [ 23.912440] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 23.912902] ? mtree_range_walk+0x632/0x900 [ 23.913327] ? mas_walk+0x5c7/0x7c0 [ 23.913700] do_vmi_munmap+0x1f1/0x2b0 [ 23.914076] mmap_region+0x1f9/0x2660 [ 23.914466] ? vm_mmap_pgoff+0x15c/0x3a0 [ 23.914848] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 23.915259] ? __pfx_lock_acquire+0x10/0x10 [ 23.915574] ? __pfx_mmap_region+0x10/0x10 [ 23.915886] ? security_mmap_addr+0x7d/0xa0 [ 23.916193] ? get_unmapped_area+0x1f5/0x3f0 [ 23.916521] do_mmap+0x854/0xf00 [ 23.916787] vm_mmap_pgoff+0x1a6/0x3a0 [ 23.917069] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 23.917400] ksys_mmap_pgoff+0x3af/0x500 [ 23.917697] do_syscall_64+0x3f/0x90 [ 23.917976] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 23.918361] RIP: 0033:0x7f939a817d82 [ 23.918635] 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 [ 23.919892] RSP: 002b:00007ffeafd338d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 23.920430] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f939a817d82 [ 23.920929] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f9399c51000 [ 23.921426] RBP: 00007f9399c51000 R08: 0000000000000009 R09: 0000000000001000 [ 23.921920] R10: 0000000000000812 R11: 0000000000000206 R12: 000056375af02d90 [ 23.922424] R13: 00007ffeafd338f0 R14: 00007ffeafd33920 R15: 00007ffeafd33c80 [ 23.922926] [ 23.923094] [ 23.923217] Allocated by task 203: [ 23.923469] kasan_save_stack+0x22/0x50 [ 23.923767] kasan_set_track+0x25/0x30 [ 23.924048] __kasan_slab_alloc+0x59/0x70 [ 23.924346] kmem_cache_alloc+0x16b/0x370 [ 23.924640] vm_area_dup+0x20/0x160 [ 23.924908] __split_vma+0x170/0x950 [ 23.925176] split_vma+0xc6/0x110 [ 23.925426] mprotect_fixup+0x8d2/0xb30 [ 23.925719] do_mprotect_pkey+0x87e/0xd40 [ 23.926023] __x64_sys_mprotect+0x78/0xc0 [ 23.926346] do_syscall_64+0x3f/0x90 [ 23.926631] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 23.927012] [ 23.927140] Freed by task 19: [ 23.927361] kasan_save_stack+0x22/0x50 [ 23.927660] kasan_set_track+0x25/0x30 [ 23.927944] kasan_save_free_info+0x2b/0x50 [ 23.928251] __kasan_slab_free+0x10a/0x190 [ 23.928564] kmem_cache_free+0x10d/0x4d0 [ 23.928861] rcu_core+0x8c8/0x2860 [ 23.929120] __do_softirq+0x1b7/0x7d4 [ 23.929396] [ 23.929518] Last potentially related work creation: [ 23.929864] kasan_save_stack+0x22/0x50 [ 23.930154] __kasan_record_aux_stack+0x8e/0xa0 [ 23.930497] __call_rcu_common.constprop.0+0x6a/0xb90 [ 23.930876] remove_vma+0x139/0x170 [ 23.931146] do_vmi_align_munmap+0xd4a/0x11f0 [ 23.931475] do_vmi_munmap+0x1f1/0x2b0 [ 23.931765] __vm_munmap+0x138/0x3a0 [ 23.932045] __x64_sys_munmap+0x59/0x80 [ 23.932326] do_syscall_64+0x3f/0x90 [ 23.932608] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 23.932980] [ 23.933106] The buggy address belongs to the object at ffff88801ab2c3a0 [ 23.933106] which belongs to the cache vm_area_struct of size 168 [ 23.933981] The buggy address is located 88 bytes inside of [ 23.933981] freed 168-byte region [ffff88801ab2c3a0, ffff88801ab2c448) [ 23.934814] [ 23.934939] The buggy address belongs to the physical page: [ 23.935321] page:00000000cbe90f6b refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1ab2c [ 23.935959] memcg:ffff88801aa2da01 [ 23.936205] flags: 0x100000000000200(slab|node=0|zone=1) [ 23.936586] page_type: 0xffffffff() [ 23.936856] raw: 0100000000000200 ffff8880087a0c80 dead000000000122 0000000000000000 [ 23.937399] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff88801aa2da01 [ 23.937939] page dumped because: kasan: bad access detected [ 23.938322] [ 23.938449] Memory state around the buggy address: [ 23.938793] ffff88801ab2c280: fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 00 [ 23.939302] ffff88801ab2c300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [ 23.939805] >ffff88801ab2c380: fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb [ 23.940301] ^ [ 23.940800] ffff88801ab2c400: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 23.941302] ffff88801ab2c480: fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.941808] ================================================================== [ 23.942398] Disabling lock debugging due to kernel taint Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 25.914758] BUG: Bad rss-counter state mm:00000000de282816 type:MM_FILEPAGES val:33 [ 25.915924] BUG: Bad rss-counter state mm:00000000de282816 type:MM_ANONPAGES val:22 [ 26.278436] BUG: Bad rss-counter state mm:00000000ddf3f213 type:MM_FILEPAGES val:33 [ 26.279635] BUG: Bad rss-counter state mm:00000000ddf3f213 type:MM_ANONPAGES val:22 Warning: Permanently added '[localhost]:37521' (ECDSA) to the list of known hosts. [ 26.358281] general protection fault, probably for non-canonical address 0xe0877c0120000001: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 26.359371] KASAN: maybe wild-memory-access in range [0x043c000900000008-0x043c00090000000f] [ 26.360136] CPU: 0 PID: 237 Comm: sshd Tainted: G B 6.4.0-rc7-next-20230620 #1 [ 26.360909] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 26.361653] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0 [ 26.362151] 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 [ 26.363768] RSP: 0018:ffff888018e4f8a8 EFLAGS: 00010212 [ 26.364251] RAX: ffff888018b4ad70 RBX: ffff88801bd15868 RCX: ffffffff844d49f9 [ 26.364889] RDX: 0087800120000001 RSI: 0000000000000008 RDI: ffff88800e205d18 [ 26.365522] RBP: ffff888016194a00 R08: ffff88800e205d18 R09: 0000000000000000 [ 26.366165] R10: 0000000000000000 R11: 00000000000b6a61 R12: ffff88800e205d10 [ 26.366821] R13: dffffc0000000000 R14: 043c000900000009 R15: ffffffff816e6340 [ 26.367460] FS: 00007fb86b0af900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 26.368186] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.368706] CR2: 00007fb86b05b000 CR3: 000000001bcb6000 CR4: 0000000000350ef0 [ 26.369349] Call Trace: [ 26.369586] [ 26.369802] ? die_addr+0x3c/0xa0 [ 26.370138] ? exc_general_protection+0x125/0x220 [ 26.370618] ? asm_exc_general_protection+0x26/0x30 [ 26.371091] ? __pfx_vma_interval_tree_augment_rotate+0x10/0x10 [ 26.371646] ? __rb_insert_augmented+0x5e9/0x8b0 [ 26.372098] ? __rb_insert_augmented+0x9d/0x8b0 [ 26.372545] ? __rb_insert_augmented+0x5e9/0x8b0 [ 26.372989] vma_prepare+0xa1a/0x11a0 [ 26.373345] __split_vma+0x5af/0x950 [ 26.373695] ? __pfx___split_vma+0x10/0x10 [ 26.374089] ? lock_acquire+0x434/0x4c0 [ 26.374478] do_vmi_align_munmap+0x361/0x11f0 [ 26.374903] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 26.375363] ? mtree_range_walk+0x632/0x900 [ 26.375773] ? mas_walk+0x5c7/0x7c0 [ 26.376127] do_vmi_munmap+0x1f1/0x2b0 [ 26.376497] mmap_region+0x1f9/0x2660 [ 26.376859] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 26.377389] ? __pfx_lock_acquire+0x10/0x10 [ 26.377789] ? __pfx_mmap_region+0x10/0x10 [ 26.378191] ? security_mmap_addr+0x7d/0xa0 [ 26.378608] ? get_unmapped_area+0x1f5/0x3f0 [ 26.379015] do_mmap+0x854/0xf00 [ 26.379341] vm_mmap_pgoff+0x1a6/0x3a0 [ 26.379711] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 26.380131] ksys_mmap_pgoff+0x3af/0x500 [ 26.380513] do_syscall_64+0x3f/0x90 [ 26.380873] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 26.381358] RIP: 0033:0x7fb86bc41d82 [ 26.381705] 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 [ 26.383315] RSP: 002b:00007ffc98eef7a8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 26.383992] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fb86bc41d82 [ 26.384619] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007fb86b056000 [ 26.385249] RBP: 00007fb86b056000 R08: 0000000000000008 R09: 0000000000001000 [ 26.385875] R10: 0000000000000812 R11: 0000000000000206 R12: 0000560baf05a120 [ 26.386527] R13: 00007ffc98eef7c0 R14: 00007ffc98eef7f0 R15: 00007ffc98eefb50 [ 26.387168] [ 26.387383] Modules linked in: [ 26.387815] ---[ end trace 0000000000000000 ]--- [ 26.388244] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0 [ 26.389018] 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 [ 26.390718] RSP: 0018:ffff888018e4f8a8 EFLAGS: 00010212 [ 26.391200] RAX: ffff888018b4ad70 RBX: ffff88801bd15868 RCX: ffffffff844d49f9 [ 26.391966] RDX: 0087800120000001 RSI: 0000000000000008 RDI: ffff88800e205d18 [ 26.392955] RBP: ffff888016194a00 R08: ffff88800e205d18 R09: 0000000000000000 [ 26.393852] R10: 0000000000000000 R11: 00000000000b6a61 R12: ffff88800e205d10 [ 26.394784] R13: dffffc0000000000 R14: 043c000900000009 R15: ffffffff816e6340 [ 26.395561] FS: 00007fb86b0af900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 26.396270] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.397018] CR2: 00007fb86b05b000 CR3: 000000001bcb6000 CR4: 0000000000350ef0 VM DIAGNOSIS: 04:24:11 Registers: info registers vcpu 0 RAX=0000000080000000 RBX=0000000000000004 RCX=ffffffff8113b544 RDX=ffff888018e351c0 RSI=0000000000000000 RDI=0000000000000007 RBP=ffff88801aaf7f58 RSP=ffff88801aaf7ed0 R8 =0000000000000007 R9 =0000000000000000 R10=0000000000000004 R11=0000000000000000 R12=0000000000000006 R13=00007fff3d4d4f7c R14=00007fff3d4d4f7c R15=ffff88800845e5c0 RIP=ffffffff814c0261 RFL=00000046 [---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 00007f17d046e900 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=00007fff3d4d4f7c CR3=000000000e3c2000 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=35e56290a66339ff5d2475d0c7046b7a XMM05=00000000000000000000000000000000 XMM06=357362636363393d5d24722068046b3d 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=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=00007fa37e749f70 CR3=00000000090d2000 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=df96d916767ad18bab47c1c578a1d3a5 XMM02=2c67c8bc2e329bc3000000000011ace0 XMM03=fb795ef6d6577056000000000011db68 XMM04=f28de8b9d11d418600000000000ae988 XMM05=808ab78ee2c79f1d0000000000131a70 XMM06=806171799158d96700000000001311e0 XMM07=e042d86d42eb936e000000000011f4e0 XMM08=996fae71fe216dcf000000000011ad40 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000