[ OK ] Finished Update UTMP about System Runlevel Changes. [ 32.352205] BUG: Bad rss-counter state mm:00000000acd01df4 type:MM_FILEPAGES val:33 [ 32.352238] BUG: Bad rss-counter state mm:00000000acd01df4 type:MM_ANONPAGES val:22 [ 32.701615] ================================================================== [ 32.702534] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0 [ 32.703486] Read of size 8 at addr ffff88801abb86b0 by task sshd/219 [ 32.704269] [ 32.704584] CPU: 1 PID: 219 Comm: sshd Not tainted 6.4.0-rc7-next-20230619 #1 [ 32.705500] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 32.706475] Call Trace: [ 32.706794] [ 32.707102] dump_stack_lvl+0x91/0xf0 [ 32.707633] print_report+0xcc/0x620 [ 32.708121] ? __virt_addr_valid+0x102/0x340 [ 32.708680] ? vma_interval_tree_remove+0xc75/0xec0 [ 32.709303] ? vma_interval_tree_remove+0xc75/0xec0 [ 32.709923] kasan_report+0xbe/0xf0 [ 32.710400] ? vma_interval_tree_remove+0xc75/0xec0 [ 32.711020] vma_interval_tree_remove+0xc75/0xec0 [ 32.711635] vma_prepare+0xc54/0x11a0 [ 32.712125] __split_vma+0x5af/0x950 [ 32.712603] ? __pfx___split_vma+0x10/0x10 [ 32.713133] ? find_held_lock+0x2c/0x110 [ 32.713659] do_vmi_align_munmap+0x2ba/0x11f0 [ 32.714223] ? lock_is_held_type+0x9f/0x120 [ 32.714767] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 32.715378] ? mtree_range_walk+0x632/0x900 [ 32.715942] ? mas_walk+0x5c7/0x7c0 [ 32.716417] do_vmi_munmap+0x1f1/0x2b0 [ 32.716918] mmap_region+0x1f9/0x2660 [ 32.717406] ? vm_mmap_pgoff+0x15c/0x3a0 [ 32.717929] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 32.718642] ? __pfx_lock_acquire+0x10/0x10 [ 32.719180] ? __pfx_mmap_region+0x10/0x10 [ 32.719746] ? security_mmap_addr+0x7d/0xa0 [ 32.720294] ? get_unmapped_area+0x1f5/0x3f0 [ 32.720856] do_mmap+0x854/0xf00 [ 32.721307] vm_mmap_pgoff+0x1a6/0x3a0 [ 32.721812] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 32.722380] ksys_mmap_pgoff+0x3af/0x500 [ 32.722896] do_syscall_64+0x3f/0x90 [ 32.723386] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 32.724051] RIP: 0033:0x7fbd02287d82 [ 32.724522] 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 [ 32.726704] RSP: 002b:00007ffc9f402c78 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 32.727668] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fbd02287d82 [ 32.728536] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007fbd016c1000 [ 32.729402] RBP: 00007fbd016c1000 R08: 0000000000000009 R09: 0000000000001000 [ 32.730261] R10: 0000000000000812 R11: 0000000000000206 R12: 0000564b1e7a0b20 [ 32.731116] R13: 00007ffc9f402c90 R14: 00007ffc9f402cc0 R15: 00007ffc9f403020 [ 32.732003] [ 32.732302] [ 32.732520] Allocated by task 208: [ 32.732954] kasan_save_stack+0x22/0x50 [ 32.733468] kasan_set_track+0x25/0x30 [ 32.733965] __kasan_slab_alloc+0x59/0x70 [ 32.734500] kmem_cache_alloc+0x16b/0x370 [ 32.735019] vm_area_dup+0x20/0x160 [ 32.735484] __split_vma+0x170/0x950 [ 32.735970] split_vma+0xc6/0x110 [ 32.736421] mprotect_fixup+0x8d2/0xb30 [ 32.736926] do_mprotect_pkey+0x87e/0xd40 [ 32.737455] __x64_sys_mprotect+0x78/0xc0 [ 32.737984] do_syscall_64+0x3f/0x90 [ 32.738457] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 32.739105] [ 32.739323] Freed by task 19: [ 32.739722] kasan_save_stack+0x22/0x50 [ 32.740234] kasan_set_track+0x25/0x30 [ 32.740732] kasan_save_free_info+0x2b/0x50 [ 32.741270] __kasan_slab_free+0x10a/0x190 [ 32.741804] kmem_cache_free+0x10d/0x4d0 [ 32.742314] rcu_core+0x8c8/0x2860 [ 32.742772] __do_softirq+0x1b7/0x7d4 [ 32.743259] [ 32.743480] Last potentially related work creation: [ 32.744074] kasan_save_stack+0x22/0x50 [ 32.744580] __kasan_record_aux_stack+0x8e/0xa0 [ 32.745161] __call_rcu_common.constprop.0+0x6a/0xb90 [ 32.745812] remove_vma+0x139/0x170 [ 32.746324] do_vmi_align_munmap+0xd4a/0x11f0 [ 32.746894] do_vmi_munmap+0x1f1/0x2b0 [ 32.747395] __vm_munmap+0x138/0x3a0 [ 32.747882] __x64_sys_munmap+0x59/0x80 [ 32.748381] do_syscall_64+0x3f/0x90 [ 32.748867] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 32.749518] [ 32.749737] The buggy address belongs to the object at ffff88801abb8658 [ 32.749737] which belongs to the cache vm_area_struct of size 168 [ 32.751230] The buggy address is located 88 bytes inside of [ 32.751230] freed 168-byte region [ffff88801abb8658, ffff88801abb8700) [ 32.752656] [ 32.752877] The buggy address belongs to the physical page: [ 32.753549] page:0000000083204933 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1abb8 [ 32.754674] memcg:ffff88801ab9c401 [ 32.755114] flags: 0x100000000000200(slab|node=0|zone=1) [ 32.755781] page_type: 0xffffffff() [ 32.756248] raw: 0100000000000200 ffff88800879fc80 dead000000000122 0000000000000000 [ 32.757195] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff88801ab9c401 [ 32.758131] page dumped because: kasan: bad access detected [ 32.758809] [ 32.759029] Memory state around the buggy address: [ 32.759628] ffff88801abb8580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.760494] ffff88801abb8600: 00 00 00 fc fc fc fc fc fc fc fc fa fb fb fb fb [ 32.761350] >ffff88801abb8680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.762202] ^ [ 32.762790] ffff88801abb8700: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 32.763686] ffff88801abb8780: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc [ 32.764545] ================================================================== [ 32.765493] Disabling lock debugging due to kernel taint Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 35.405452] BUG: Bad rss-counter state mm:000000009c8480bb type:MM_FILEPAGES val:33 [ 35.406565] BUG: Bad rss-counter state mm:000000009c8480bb type:MM_ANONPAGES val:22 [ 35.982820] BUG: Bad rss-counter state mm:00000000adcfb035 type:MM_FILEPAGES val:33 [ 35.984003] BUG: Bad rss-counter state mm:00000000adcfb035 type:MM_ANONPAGES val:22 Warning: Permanently added '[localhost]:5628' (ECDSA) to the list of known hosts. [ 36.028205] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 36.029681] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 36.030589] CPU: 0 PID: 237 Comm: sshd Tainted: G B 6.4.0-rc7-next-20230619 #1 [ 36.031616] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 36.032587] RIP: 0010:__rb_insert_augmented+0x78/0x8b0 [ 36.033247] 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 [ 36.035368] RSP: 0018:ffff88800f1178a8 EFLAGS: 00010212 [ 36.036025] RAX: ffff888018f2e8e0 RBX: ffff88801b9fb210 RCX: ffffffff844ce9df [ 36.036882] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88801abc2cf0 [ 36.037734] RBP: ffff88801abc2cf0 R08: 0000000000000008 R09: 0000000000000000 [ 36.038573] R10: 0000000000000000 R11: 00000000000b6996 R12: 0000000000000000 [ 36.039411] R13: dffffc0000000000 R14: ffff88800f117988 R15: ffffffff816e61c0 [ 36.040276] FS: 00007f3867d6c900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 36.041220] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.041914] CR2: 00007f3867d2e000 CR3: 000000000d534000 CR4: 0000000000350ef0 [ 36.042763] Call Trace: [ 36.043077] [ 36.043368] ? die_addr+0x3c/0xa0 [ 36.043821] ? exc_general_protection+0x125/0x220 [ 36.044431] ? asm_exc_general_protection+0x26/0x30 [ 36.045055] ? __pfx_vma_interval_tree_augment_rotate+0x10/0x10 [ 36.045791] ? __rb_insert_augmented+0x5cf/0x8b0 [ 36.046382] ? __rb_insert_augmented+0x78/0x8b0 [ 36.046964] ? __rb_insert_augmented+0x5cf/0x8b0 [ 36.047563] vma_prepare+0xa1a/0x11a0 [ 36.048059] __split_vma+0x5af/0x950 [ 36.048524] ? __pfx___split_vma+0x10/0x10 [ 36.049057] ? lock_acquire+0x434/0x4c0 [ 36.049553] do_vmi_align_munmap+0x361/0x11f0 [ 36.050113] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 36.050718] ? mtree_range_walk+0x632/0x900 [ 36.051261] ? mas_walk+0x5c7/0x7c0 [ 36.051742] do_vmi_munmap+0x1f1/0x2b0 [ 36.052232] mmap_region+0x1f9/0x2660 [ 36.052714] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 36.053429] ? __pfx_lock_acquire+0x10/0x10 [ 36.053959] ? __pfx_mmap_region+0x10/0x10 [ 36.054482] ? security_mmap_addr+0x7d/0xa0 [ 36.055009] ? get_unmapped_area+0x1f5/0x3f0 [ 36.055558] do_mmap+0x854/0xf00 [ 36.056014] vm_mmap_pgoff+0x1a6/0x3a0 [ 36.056508] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 36.057064] ksys_mmap_pgoff+0x3af/0x500 [ 36.057567] do_syscall_64+0x3f/0x90 [ 36.058037] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 36.058675] RIP: 0033:0x7f38688fed82 [ 36.059125] 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 [ 36.061251] RSP: 002b:00007fffd3c49aa8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 36.062156] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f38688fed82 [ 36.063000] RDX: 0000000000000005 RSI: 0000000000002000 RDI: 00007f3867d28000 [ 36.063848] RBP: 00007f3867d28000 R08: 0000000000000008 R09: 0000000000002000 [ 36.064696] R10: 0000000000000812 R11: 0000000000000206 R12: 000055da1c947fb0 [ 36.065540] R13: 00007fffd3c49ac0 R14: 00007fffd3c49af0 R15: 00007fffd3c49e50 [ 36.066394] [ 36.066687] Modules linked in: [ 36.067212] ---[ end trace 0000000000000000 ]--- [ 36.067995] RIP: 0010:__rb_insert_augmented+0x78/0x8b0 [ 36.068785] 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 [ 36.071078] RSP: 0018:ffff88800f1178a8 EFLAGS: 00010212 [ 36.071900] RAX: ffff888018f2e8e0 RBX: ffff88801b9fb210 RCX: ffffffff844ce9df [ 36.072895] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88801abc2cf0 [ 36.073887] RBP: ffff88801abc2cf0 R08: 0000000000000008 R09: 0000000000000000 [ 36.074936] R10: 0000000000000000 R11: 00000000000b6996 R12: 0000000000000000 [ 36.075933] R13: dffffc0000000000 R14: ffff88800f117988 R15: ffffffff816e61c0 [ 36.076816] FS: 00007f3867d6c900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 36.077791] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.078484] CR2: 00007f3867d2e000 CR3: 000000000d534000 CR4: 0000000000350ef0 VM DIAGNOSIS: 12:14:01 Registers: info registers vcpu 0 RAX=0000000080000000 RBX=00007f6da7e8c477 RCX=ffffffff81007b62 RDX=ffff888017edb680 RSI=0000000000000000 RDI=0000000000000005 RBP=0000000000000001 RSP=ffff888019007848 R8 =0000000000000005 R9 =0000000000000002 R10=0000000000000001 R11=00000000000b6996 R12=ffff888019007990 R13=0000000000000000 R14=ffff888017edb680 R15=0000000000092c40 RIP=ffffffff814c07eb RFL=00000297 [--S-APC] 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 00007f6da7999900 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=00007f6da7f50618 CR3=000000000dcae000 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=6e69676f6c5f6d61702c78756e696c65 XMM02=755f6d61702c74696d7265705f6d6170 XMM03=2c766e655f6d61702c7374696d696c5f XMM04=6d61702c766e655f6d61702c7374696d XMM05=78696e755f6d61702c74696d7265705f XMM06=6469756e69676f6c5f6d61702c78756e XMM07=672065736f6c635f6e6f69737365733a XMM08=61662029286e65706f5f746964756100 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=ffff88806cf35000 RBX=0000000000000001 RCX=ffffffff8450c50e RDX=ffffed100d9e6a01 RSI=0000000000000004 RDI=ffffffff812889a5 RBP=dffffc0000000000 RSP=ffff888008e27e70 R8 =0000000000000000 R9 =ffffed100d9e6a00 R10=ffff88806cf35003 R11=0000000000000001 R12=ffffffff85d3bed0 R13=1ffff110011c4fd3 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff8450d49f 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=00007f991163a900 CR3=000000000c968000 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=b80b5ea9b998b6b73b492e7a813d5430 XMM02=2c67c8bc2e329bc3000000000011c980 XMM03=fb795ef6d6577056000000000011fdd8 XMM04=430d17809f5e865200000000000ae988 XMM05=dfcdbad4f1609c370000000000132528 XMM06=f764b3fe39d0f03e0000000000131da8 XMM07=e042d86d42eb936e00000000001206e0 XMM08=8d2b22333fd907f8000000000011c9e0 XMM09=00000000000000000000000000000000 XMM10=20200000000020202020202020200000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000