[ OK ] Finished Update UTMP about System Runlevel Changes. [ 30.072601] BUG: Bad rss-counter state mm:000000009041886d type:MM_FILEPAGES val:33 [ 30.072643] BUG: Bad rss-counter state mm:000000009041886d type:MM_ANONPAGES val:22 [ 30.091068] sshd (205) used greatest stack depth: 24120 bytes left [ 30.338787] ================================================================== [ 30.339846] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0 [ 30.341032] Read of size 8 at addr ffff88800fe3a3f8 by task sshd/220 [ 30.341803] [ 30.341922] CPU: 0 PID: 220 Comm: sshd Not tainted 6.4.0-rc7-next-20230619 #1 [ 30.342391] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 30.342924] Call Trace: [ 30.343098] [ 30.343270] dump_stack_lvl+0x91/0xf0 [ 30.343536] print_report+0xcc/0x620 [ 30.343797] ? __virt_addr_valid+0x102/0x340 [ 30.344094] ? vma_interval_tree_remove+0xc75/0xec0 [ 30.344425] ? vma_interval_tree_remove+0xc75/0xec0 [ 30.344759] kasan_report+0xbe/0xf0 [ 30.345015] ? vma_interval_tree_remove+0xc75/0xec0 [ 30.345350] vma_interval_tree_remove+0xc75/0xec0 [ 30.345696] vma_prepare+0xc54/0x11a0 [ 30.345956] __split_vma+0x5af/0x950 [ 30.346210] ? __pfx___split_vma+0x10/0x10 [ 30.346496] ? find_held_lock+0x2c/0x110 [ 30.346776] do_vmi_align_munmap+0x2ba/0x11f0 [ 30.347077] ? lock_is_held_type+0x9f/0x120 [ 30.347366] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 30.347695] ? mtree_range_walk+0x632/0x900 [ 30.348009] ? mas_walk+0x5c7/0x7c0 [ 30.348272] do_vmi_munmap+0x1f1/0x2b0 [ 30.348556] mmap_region+0x1f9/0x2660 [ 30.348836] ? vm_mmap_pgoff+0x15c/0x3a0 [ 30.349128] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 30.349548] ? __pfx_lock_acquire+0x10/0x10 [ 30.349874] ? __pfx_mmap_region+0x10/0x10 [ 30.350174] ? security_mmap_addr+0x7d/0xa0 [ 30.350484] ? get_unmapped_area+0x1f5/0x3f0 [ 30.350795] do_mmap+0x854/0xf00 [ 30.351054] vm_mmap_pgoff+0x1a6/0x3a0 [ 30.351347] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 30.351679] ksys_mmap_pgoff+0x3af/0x500 [ 30.351970] do_syscall_64+0x3f/0x90 [ 30.352251] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 30.352625] RIP: 0033:0x7f3c37f4bd82 [ 30.352892] 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 [ 30.354135] RSP: 002b:00007ffcfec86dd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 30.354670] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f3c37f4bd82 [ 30.355166] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f3c37385000 [ 30.355656] RBP: 00007f3c37385000 R08: 0000000000000009 R09: 0000000000001000 [ 30.356154] R10: 0000000000000812 R11: 0000000000000206 R12: 0000560938305ec0 [ 30.356650] R13: 00007ffcfec86df0 R14: 00007ffcfec86e20 R15: 00007ffcfec87180 [ 30.357139] [ 30.357312] [ 30.357430] Allocated by task 205: [ 30.357690] kasan_save_stack+0x22/0x50 [ 30.357978] kasan_set_track+0x25/0x30 [ 30.358264] __kasan_slab_alloc+0x59/0x70 [ 30.358563] kmem_cache_alloc+0x16b/0x370 [ 30.358868] vm_area_dup+0x20/0x160 [ 30.359129] __split_vma+0x170/0x950 [ 30.359395] split_vma+0xc6/0x110 [ 30.359649] mprotect_fixup+0x8d2/0xb30 [ 30.359945] do_mprotect_pkey+0x87e/0xd40 [ 30.360246] __x64_sys_mprotect+0x78/0xc0 [ 30.360550] do_syscall_64+0x3f/0x90 [ 30.360822] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 30.361196] [ 30.361320] Freed by task 105: [ 30.361555] kasan_save_stack+0x22/0x50 [ 30.361848] kasan_set_track+0x25/0x30 [ 30.362136] kasan_save_free_info+0x2b/0x50 [ 30.362446] __kasan_slab_free+0x10a/0x190 [ 30.362749] kmem_cache_free+0x10d/0x4d0 [ 30.363046] rcu_core+0x8c8/0x2860 [ 30.363306] __do_softirq+0x1b7/0x7d4 [ 30.363593] [ 30.363716] Last potentially related work creation: [ 30.364047] kasan_save_stack+0x22/0x50 [ 30.364338] __kasan_record_aux_stack+0x8e/0xa0 [ 30.364673] __call_rcu_common.constprop.0+0x6a/0xb90 [ 30.365036] remove_vma+0x139/0x170 [ 30.365294] do_vmi_align_munmap+0xd4a/0x11f0 [ 30.365612] do_vmi_munmap+0x1f1/0x2b0 [ 30.365903] __vm_munmap+0x138/0x3a0 [ 30.366173] __x64_sys_munmap+0x59/0x80 [ 30.366459] do_syscall_64+0x3f/0x90 [ 30.366736] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 30.367114] [ 30.367240] The buggy address belongs to the object at ffff88800fe3a3a0 [ 30.367240] which belongs to the cache vm_area_struct of size 168 [ 30.368109] The buggy address is located 88 bytes inside of [ 30.368109] freed 168-byte region [ffff88800fe3a3a0, ffff88800fe3a448) [ 30.368935] [ 30.369064] The buggy address belongs to the physical page: [ 30.369446] page:00000000a98e8219 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xfe3a [ 30.370098] memcg:ffff888016bc1c01 [ 30.370338] flags: 0x100000000000200(slab|node=0|zone=1) [ 30.370722] page_type: 0xffffffff() [ 30.370992] raw: 0100000000000200 ffff88800879fc80 dead000000000122 0000000000000000 [ 30.371529] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff888016bc1c01 [ 30.372057] page dumped because: kasan: bad access detected [ 30.372436] [ 30.372563] Memory state around the buggy address: [ 30.372904] ffff88800fe3a280: fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 00 [ 30.373366] ffff88800fe3a300: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [ 30.373830] >ffff88800fe3a380: fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb [ 30.374288] ^ [ 30.374741] ffff88800fe3a400: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 30.375198] ffff88800fe3a480: fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.375659] ================================================================== [ 30.376224] Disabling lock debugging due to kernel taint Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 32.432783] BUG: Bad rss-counter state mm:00000000b97b1e23 type:MM_FILEPAGES val:33 [ 32.433952] BUG: Bad rss-counter state mm:00000000b97b1e23 type:MM_ANONPAGES val:22 [ 32.774509] BUG: Bad rss-counter state mm:00000000c1ab90ee type:MM_FILEPAGES val:33 [ 32.775525] BUG: Bad rss-counter state mm:00000000c1ab90ee type:MM_ANONPAGES val:22 Warning: Permanently added '[localhost]:48116' (ECDSA) to the list of known hosts. [ 32.899856] general protection fault, probably for non-canonical address 0xe0827c0120000002: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 32.901459] KASAN: maybe wild-memory-access in range [0x0414000900000010-0x0414000900000017] [ 32.902708] CPU: 0 PID: 238 Comm: sshd Tainted: G B 6.4.0-rc7-next-20230619 #1 [ 32.903891] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 32.905012] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0 [ 32.905795] 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 [ 32.907956] RSP: 0018:ffff888016e7f8a8 EFLAGS: 00010212 [ 32.908584] RAX: ffff888018ea5510 RBX: ffff88801bfa1c08 RCX: ffffffff844ce9f9 [ 32.909412] RDX: 0082800120000002 RSI: 0000000000000008 RDI: ffff888009b05858 [ 32.910249] RBP: ffff8880165d1bc0 R08: ffff888009b05858 R09: 0000000000000000 [ 32.911076] R10: 0000000000000000 R11: 00000000000b6996 R12: ffff888009b05850 [ 32.911903] R13: dffffc0000000000 R14: 0414000900000013 R15: ffffffff816e61c0 [ 32.912733] FS: 00007fe830399900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 32.913664] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.914368] CR2: 00007fe830365000 CR3: 0000000019b00000 CR4: 0000000000350ef0 [ 32.915194] Call Trace: [ 32.915508] [ 32.915781] ? die_addr+0x3c/0xa0 [ 32.916214] ? exc_general_protection+0x125/0x220 [ 32.916816] ? asm_exc_general_protection+0x26/0x30 [ 32.917428] ? __pfx_vma_interval_tree_augment_rotate+0x10/0x10 [ 32.918153] ? __rb_insert_augmented+0x5e9/0x8b0 [ 32.918731] ? __rb_insert_augmented+0x9d/0x8b0 [ 32.919301] ? __rb_insert_augmented+0x5e9/0x8b0 [ 32.919881] vma_prepare+0xa1a/0x11a0 [ 32.920349] __split_vma+0x5af/0x950 [ 32.920820] ? __pfx___split_vma+0x10/0x10 [ 32.921334] ? lock_acquire+0x434/0x4c0 [ 32.921829] do_vmi_align_munmap+0x361/0x11f0 [ 32.922381] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 32.922971] ? mtree_range_walk+0x632/0x900 [ 32.923513] ? mas_walk+0x5c7/0x7c0 [ 32.923972] do_vmi_munmap+0x1f1/0x2b0 [ 32.924452] mmap_region+0x1f9/0x2660 [ 32.924925] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 32.925623] ? __pfx_lock_acquire+0x10/0x10 [ 32.926299] ? __pfx_mmap_region+0x10/0x10 [ 32.926833] ? security_mmap_addr+0x7d/0xa0 [ 32.927358] ? get_unmapped_area+0x1f5/0x3f0 [ 32.927907] do_mmap+0x854/0xf00 [ 32.928342] vm_mmap_pgoff+0x1a6/0x3a0 [ 32.928843] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 32.929398] ksys_mmap_pgoff+0x3af/0x500 [ 32.929910] do_syscall_64+0x3f/0x90 [ 32.930384] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 32.931027] RIP: 0033:0x7fe830f2bd82 [ 32.931478] 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 [ 32.933583] RSP: 002b:00007fff307bef78 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 32.934483] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fe830f2bd82 [ 32.935320] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007fe830360000 [ 32.936159] RBP: 00007fe830360000 R08: 0000000000000009 R09: 0000000000001000 [ 32.937001] R10: 0000000000000812 R11: 0000000000000206 R12: 0000559a2ea02450 [ 32.937863] R13: 00007fff307bef90 R14: 00007fff307befc0 R15: 00007fff307bf320 [ 32.938706] [ 32.938992] Modules linked in: [ 32.939638] ---[ end trace 0000000000000000 ]--- [ 32.940210] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0 [ 32.940886] 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 [ 32.943526] RSP: 0018:ffff888016e7f8a8 EFLAGS: 00010212 [ 32.944349] RAX: ffff888018ea5510 RBX: ffff88801bfa1c08 RCX: ffffffff844ce9f9 [ 32.945321] RDX: 0082800120000002 RSI: 0000000000000008 RDI: ffff888009b05858 [ 32.946351] RBP: ffff8880165d1bc0 R08: ffff888009b05858 R09: 0000000000000000 [ 32.947288] R10: 0000000000000000 R11: 00000000000b6996 R12: ffff888009b05850 [ 32.948164] R13: dffffc0000000000 R14: 0414000900000013 R15: ffffffff816e61c0 [ 32.949034] FS: 00007fe830399900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 32.949997] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.950706] CR2: 00007fe830365000 CR3: 0000000019b00000 CR4: 0000000000350ef0 VM DIAGNOSIS: 17:31:08 Registers: info registers vcpu 0 RAX=0000000000000000 RBX=0000000000000000 RCX=0000000000000000 RDX=ffff8880164151c0 RSI=ffffffff814c84fa RDI=0000000000000005 RBP=0000000000000000 RSP=ffff888016ef70e0 R8 =0000000000000005 R9 =0000000000000000 R10=0000000000000000 R11=00000000000b6996 R12=0000000000000000 R13=0000000000000000 R14=ffffffff85652a88 R15=ffff88800ee00980 RIP=ffffffff81374460 RFL=00000293 [--S-A-C] 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 00007f137dcbd900 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=00007f137dc9c020 CR3=00000000164f4000 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=652022746f6f72223d74636361207469 XMM02=3d6c616e696d72657420322e322e302e XMM03=3d656d616e74736f682022646873732f XMM04=40404040404040404040404040404040 XMM05=5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a XMM06=20202020202020202020202020202020 XMM07=00000000000000000000000000000000 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=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=00007ff5090b4530 CR3=000000000d87e000 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=2034313a31333a3731203931206e754a XMM01=73732878696e755f6d6170203a5d3932 XMM02=65736f6c63206e6f6973736573203a29 XMM03=755f6d6170203a5d3932325b64687373 XMM04=69662068637573206f4e203a656c6163 XMM05=3a656c696620766e65206e65706f206f XMM06=65733a6468737328766e655f6d617020 XMM07=6b7a79732034313a31333a3731203931 XMM08=3d656e696c646d632022656369767265 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000