[ OK ] Finished Update UTMP about System Runlevel Changes. [ 23.855567] BUG: Bad rss-counter state mm:00000000fb0e2b22 type:MM_FILEPAGES val:33 [ 23.855598] BUG: Bad rss-counter state mm:00000000fb0e2b22 type:MM_ANONPAGES val:22 [ 24.170632] ================================================================== [ 24.171955] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0 [ 24.173183] Read of size 8 at addr ffff88801a979058 by task sshd/218 [ 24.174232] [ 24.174493] CPU: 1 PID: 218 Comm: sshd Not tainted 6.4.0-rc7-next-20230620 #1 [ 24.175515] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 24.176811] Call Trace: [ 24.177195] [ 24.177536] dump_stack_lvl+0x91/0xf0 [ 24.178205] print_report+0xcc/0x620 [ 24.178948] ? __virt_addr_valid+0x102/0x340 [ 24.179622] ? vma_interval_tree_remove+0xc75/0xec0 [ 24.180461] ? vma_interval_tree_remove+0xc75/0xec0 [ 24.181122] kasan_report+0xbe/0xf0 [ 24.181614] ? vma_interval_tree_remove+0xc75/0xec0 [ 24.182250] vma_interval_tree_remove+0xc75/0xec0 [ 24.182864] vma_prepare+0xc54/0x11a0 [ 24.183347] __split_vma+0x5af/0x950 [ 24.183827] ? __pfx___split_vma+0x10/0x10 [ 24.184428] ? find_held_lock+0x2c/0x110 [ 24.184962] do_vmi_align_munmap+0x2ba/0x11f0 [ 24.185541] ? lock_is_held_type+0x9f/0x120 [ 24.186095] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 24.186714] ? mtree_range_walk+0x632/0x900 [ 24.187275] ? mas_walk+0x5c7/0x7c0 [ 24.187765] do_vmi_munmap+0x1f1/0x2b0 [ 24.188309] mmap_region+0x1f9/0x2660 [ 24.188788] ? vm_mmap_pgoff+0x15c/0x3a0 [ 24.189297] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 24.190008] ? __pfx_lock_acquire+0x10/0x10 [ 24.190537] ? __pfx_mmap_region+0x10/0x10 [ 24.191069] ? security_mmap_addr+0x7d/0xa0 [ 24.191607] ? get_unmapped_area+0x1f5/0x3f0 [ 24.192201] do_mmap+0x854/0xf00 [ 24.192643] vm_mmap_pgoff+0x1a6/0x3a0 [ 24.193140] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 24.193716] ksys_mmap_pgoff+0x3af/0x500 [ 24.194244] do_syscall_64+0x3f/0x90 [ 24.194748] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 24.195430] RIP: 0033:0x7f2b27209d82 [ 24.195910] 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 [ 24.198202] RSP: 002b:00007fff42b287c8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 24.199158] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f2b27209d82 [ 24.200057] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f2b26643000 [ 24.200952] RBP: 00007f2b26643000 R08: 0000000000000009 R09: 0000000000001000 [ 24.201841] R10: 0000000000000812 R11: 0000000000000206 R12: 00005640eee2bec0 [ 24.202726] R13: 00007fff42b287e0 R14: 00007fff42b28810 R15: 00007fff42b28b70 [ 24.203625] [ 24.203948] [ 24.204176] Allocated by task 205: [ 24.204624] kasan_save_stack+0x22/0x50 [ 24.205154] kasan_set_track+0x25/0x30 [ 24.205672] __kasan_slab_alloc+0x59/0x70 [ 24.206220] kmem_cache_alloc+0x16b/0x370 [ 24.206756] vm_area_dup+0x20/0x160 [ 24.207231] __split_vma+0x170/0x950 [ 24.207718] split_vma+0xc6/0x110 [ 24.208185] mprotect_fixup+0x8d2/0xb30 [ 24.208716] do_mprotect_pkey+0x87e/0xd40 [ 24.209256] __x64_sys_mprotect+0x78/0xc0 [ 24.209795] do_syscall_64+0x3f/0x90 [ 24.210290] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 24.210969] [ 24.211191] Freed by task 202: [ 24.211601] kasan_save_stack+0x22/0x50 [ 24.212152] kasan_set_track+0x25/0x30 [ 24.212669] kasan_save_free_info+0x2b/0x50 [ 24.213228] __kasan_slab_free+0x10a/0x190 [ 24.213785] kmem_cache_free+0x10d/0x4d0 [ 24.214318] rcu_core+0x8c8/0x2860 [ 24.214853] __do_softirq+0x1b7/0x7d4 [ 24.215353] [ 24.215573] Last potentially related work creation: [ 24.216212] kasan_save_stack+0x22/0x50 [ 24.216741] __kasan_record_aux_stack+0x8e/0xa0 [ 24.217337] __call_rcu_common.constprop.0+0x6a/0xb90 [ 24.218010] remove_vma+0x139/0x170 [ 24.218481] do_vmi_align_munmap+0xd4a/0x11f0 [ 24.219056] do_vmi_munmap+0x1f1/0x2b0 [ 24.219572] __vm_munmap+0x138/0x3a0 [ 24.220090] __x64_sys_munmap+0x59/0x80 [ 24.220614] do_syscall_64+0x3f/0x90 [ 24.221112] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 24.221783] [ 24.222001] The buggy address belongs to the object at ffff88801a979000 [ 24.222001] which belongs to the cache vm_area_struct of size 168 [ 24.223519] The buggy address is located 88 bytes inside of [ 24.223519] freed 168-byte region [ffff88801a979000, ffff88801a9790a8) [ 24.225011] [ 24.225239] The buggy address belongs to the physical page: [ 24.225919] page:0000000046573f52 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1a979 [ 24.227056] memcg:ffff88801a95f401 [ 24.227516] flags: 0x100000000000200(slab|node=0|zone=1) [ 24.228225] page_type: 0xffffffff() [ 24.228704] raw: 0100000000000200 ffff8880087a0c80 dead000000000122 0000000000000000 [ 24.229666] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff88801a95f401 [ 24.230618] page dumped because: kasan: bad access detected [ 24.231310] [ 24.231532] Memory state around the buggy address: [ 24.232181] ffff88801a978f00: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc [ 24.233079] ffff88801a978f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.233989] >ffff88801a979000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.234885] ^ [ 24.235641] ffff88801a979080: fb fb fb fb fb fc fc fc fc fc fc fc fc fa fb fb [ 24.236567] ffff88801a979100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.237464] ================================================================== [ 24.238464] Disabling lock debugging due to kernel taint Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 26.266306] BUG: Bad rss-counter state mm:00000000bb54ea69 type:MM_FILEPAGES val:33 [ 26.268207] BUG: Bad rss-counter state mm:00000000bb54ea69 type:MM_ANONPAGES val:22 [ 26.784197] BUG: Bad rss-counter state mm:0000000077599429 type:MM_FILEPAGES val:33 [ 26.785847] BUG: Bad rss-counter state mm:0000000077599429 type:MM_ANONPAGES val:22 Warning: Permanently added '[localhost]:2973' (ECDSA) to the list of known hosts. [ 26.918804] general protection fault, probably for non-canonical address 0xe0ab7c23e0000019: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 26.920161] KASAN: maybe wild-memory-access in range [0x055c011f000000c8-0x055c011f000000cf] [ 26.921098] CPU: 1 PID: 236 Comm: sshd Tainted: G B 6.4.0-rc7-next-20230620 #1 [ 26.922060] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 26.922963] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0 [ 26.923590] 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 [ 26.925617] RSP: 0018:ffff88800f7778a8 EFLAGS: 00010213 [ 26.926221] RAX: ffff888018f43758 RBX: ffff88800c590128 RCX: ffffffff844d49f9 [ 26.927018] RDX: 00ab8023e0000019 RSI: 0000000000000008 RDI: ffff88800db71e08 [ 26.927826] RBP: ffff888015f640c0 R08: ffff88800db71e08 R09: 0000000000000000 [ 26.928729] R10: 0000000000000000 R11: 00000000000b6a61 R12: ffff88800db71e00 [ 26.929579] R13: dffffc0000000000 R14: 055c011f000000cd R15: ffffffff816e6340 [ 26.930439] FS: 00007ffa68a5a900(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 26.931389] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.932127] CR2: 00007ffa68a01000 CR3: 000000001ca96000 CR4: 0000000000350ee0 [ 26.932977] Call Trace: [ 26.933299] [ 26.933591] ? die_addr+0x3c/0xa0 [ 26.934036] ? exc_general_protection+0x125/0x220 [ 26.934651] ? asm_exc_general_protection+0x26/0x30 [ 26.935293] ? __pfx_vma_interval_tree_augment_rotate+0x10/0x10 [ 26.936073] ? __rb_insert_augmented+0x5e9/0x8b0 [ 26.936678] ? __rb_insert_augmented+0x9d/0x8b0 [ 26.937276] ? __rb_insert_augmented+0x5e9/0x8b0 [ 26.938000] vma_prepare+0xa1a/0x11a0 [ 26.938589] __split_vma+0x5af/0x950 [ 26.939175] ? __pfx___split_vma+0x10/0x10 [ 26.939831] ? lock_acquire+0x434/0x4c0 [ 26.940485] do_vmi_align_munmap+0x361/0x11f0 [ 26.941191] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 26.941944] ? mtree_range_walk+0x632/0x900 [ 26.942627] ? mas_walk+0x5c7/0x7c0 [ 26.943211] do_vmi_munmap+0x1f1/0x2b0 [ 26.943817] mmap_region+0x1f9/0x2660 [ 26.944435] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 26.945328] ? __pfx_lock_acquire+0x10/0x10 [ 26.945991] ? __pfx_mmap_region+0x10/0x10 [ 26.946650] ? security_mmap_addr+0x7d/0xa0 [ 26.947316] ? get_unmapped_area+0x1f5/0x3f0 [ 26.948020] do_mmap+0x854/0xf00 [ 26.948567] vm_mmap_pgoff+0x1a6/0x3a0 [ 26.949179] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 26.949884] ksys_mmap_pgoff+0x3af/0x500 [ 26.950521] do_syscall_64+0x3f/0x90 [ 26.951114] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 26.951924] RIP: 0033:0x7ffa695ecd82 [ 26.952512] 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 [ 26.955154] RSP: 002b:00007ffd497e33a8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 26.956305] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007ffa695ecd82 [ 26.957369] RDX: 0000000000000005 RSI: 0000000000003000 RDI: 00007ffa689fa000 [ 26.958429] RBP: 00007ffa689fa000 R08: 0000000000000008 R09: 0000000000002000 [ 26.959503] R10: 0000000000000812 R11: 0000000000000206 R12: 000055b3e99bcf00 [ 26.960592] R13: 00007ffd497e33c0 R14: 00007ffd497e33f0 R15: 00007ffd497e3750 [ 26.961666] [ 26.962034] Modules linked in: [ 26.962812] ---[ end trace 0000000000000000 ]--- [ 26.963656] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0 [ 26.964578] 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 [ 26.967785] RSP: 0018:ffff88800f7778a8 EFLAGS: 00010213 [ 26.968613] RAX: ffff888018f43758 RBX: ffff88800c590128 RCX: ffffffff844d49f9 [ 26.969522] RDX: 00ab8023e0000019 RSI: 0000000000000008 RDI: ffff88800db71e08 [ 26.970413] RBP: ffff888015f640c0 R08: ffff88800db71e08 R09: 0000000000000000 [ 26.971219] R10: 0000000000000000 R11: 00000000000b6a61 R12: ffff88800db71e00 [ 26.972168] R13: dffffc0000000000 R14: 055c011f000000cd R15: ffffffff816e6340 [ 26.973183] FS: 00007ffa68a5a900(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 26.974213] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.975038] CR2: 00007ffa68a01000 CR3: 000000001ca96000 CR4: 0000000000350ee0 VM DIAGNOSIS: 11:08:29 Registers: info registers vcpu 0 RAX=0000000000000007 RBX=ffff88801017e7a0 RCX=0000000000000000 RDX=0000000000000000 RSI=ffffffff818f779a RDI=ffff88801017e8ac RBP=0000000000000000 RSP=ffff888015c77a98 R8 =0000000000000000 R9 =fffffbfff0ba7a6a R10=ffffffff85d3d357 R11=00000000000b6a61 R12=ffff88801017e780 R13=dffffc0000000000 R14=0000000000000001 R15=ffff888015c77df0 RIP=ffffffff818f77d1 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 =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 00007fae48120900 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=00007fae475762c0 CR3=000000000cb4c000 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=ffffffffffffffffffffffffffffffff XMM01=30306234386136303638616663356134 XMM02=38303062343861363036386166633561 XMM03=2f6c616e72756f6a2f676f6c2f6e7572 XMM04=190aa79b7839497700000000000ae988 XMM05=e77aa5c7e46683ad0000000000133580 XMM06=9a4087a907c89d490000000000131fe8 XMM07=00000000000000000000000000000000 XMM08=415453454d49545f454d49544c414552 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000000 RBX=ffff8880169f7ca8 RCX=0000000000000006 RDX=ffff88800fc88000 RSI=ffffffff844c7d3e RDI=ffff8880169f7b60 RBP=1ffff11002d3ef62 RSP=ffff8880169f7b10 R8 =0000000000000001 R9 =ffffed100352b97a R10=ffff88801a95cbd7 R11=0000000000000000 R12=ffff88801a9799f8 R13=0000000000000cc0 R14=ffff8880169f7cc0 R15=dffffc0000000000 RIP=ffffffff844c7d4f 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 =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 00007fc7ca3a3900 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=00007fc7ca36d008 CR3=000000000f014000 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=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