[ OK ] Finished Update UTMP about System Runlevel Changes. [ 24.286667] BUG: Bad rss-counter state mm:000000006c4cc4fb type:MM_FILEPAGES val:33 [ 24.286700] BUG: Bad rss-counter state mm:000000006c4cc4fb type:MM_ANONPAGES val:22 [ 24.798876] ================================================================== [ 24.799819] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0 [ 24.800795] Read of size 8 at addr ffff888016467df0 by task sshd/221 [ 24.801753] [ 24.801976] CPU: 1 PID: 221 Comm: sshd Not tainted 6.4.0-rc7-next-20230619 #1 [ 24.802862] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 24.803884] Call Trace: [ 24.804210] [ 24.804501] dump_stack_lvl+0x91/0xf0 [ 24.805023] print_report+0xcc/0x620 [ 24.805529] ? __virt_addr_valid+0x102/0x340 [ 24.806101] ? vma_interval_tree_remove+0xc75/0xec0 [ 24.806759] ? vma_interval_tree_remove+0xc75/0xec0 [ 24.807380] kasan_report+0xbe/0xf0 [ 24.807876] ? vma_interval_tree_remove+0xc75/0xec0 [ 24.808501] vma_interval_tree_remove+0xc75/0xec0 [ 24.809123] vma_prepare+0xc54/0x11a0 [ 24.809622] __split_vma+0x5af/0x950 [ 24.810100] ? __pfx___split_vma+0x10/0x10 [ 24.810666] ? find_held_lock+0x2c/0x110 [ 24.811186] do_vmi_align_munmap+0x2ba/0x11f0 [ 24.811765] ? lock_is_held_type+0x9f/0x120 [ 24.812307] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 24.812941] ? mtree_range_walk+0x632/0x900 [ 24.813494] ? mas_walk+0x5c7/0x7c0 [ 24.813976] do_vmi_munmap+0x1f1/0x2b0 [ 24.814486] mmap_region+0x1f9/0x2660 [ 24.814978] ? vm_mmap_pgoff+0x15c/0x3a0 [ 24.815497] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 24.816227] ? __pfx_lock_acquire+0x10/0x10 [ 24.816770] ? __pfx_mmap_region+0x10/0x10 [ 24.817302] ? security_mmap_addr+0x7d/0xa0 [ 24.817866] ? get_unmapped_area+0x1f5/0x3f0 [ 24.818444] do_mmap+0x854/0xf00 [ 24.818910] vm_mmap_pgoff+0x1a6/0x3a0 [ 24.819421] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 24.820008] ksys_mmap_pgoff+0x3af/0x500 [ 24.820523] do_syscall_64+0x3f/0x90 [ 24.821022] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 24.821708] RIP: 0033:0x7f4de7968d82 [ 24.822170] 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 [ 24.824343] RSP: 002b:00007ffd7eb83508 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 24.825261] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f4de7968d82 [ 24.826136] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f4de6da2000 [ 24.827028] RBP: 00007f4de6da2000 R08: 0000000000000009 R09: 0000000000001000 [ 24.827892] R10: 0000000000000812 R11: 0000000000000206 R12: 000055ba2fbc1d90 [ 24.828748] R13: 00007ffd7eb83520 R14: 00007ffd7eb83550 R15: 00007ffd7eb838b0 [ 24.829613] [ 24.829912] [ 24.830130] Allocated by task 206: [ 24.830592] kasan_save_stack+0x22/0x50 [ 24.831118] kasan_set_track+0x25/0x30 [ 24.831639] __kasan_slab_alloc+0x59/0x70 [ 24.832167] kmem_cache_alloc+0x16b/0x370 [ 24.832699] vm_area_dup+0x20/0x160 [ 24.833157] __split_vma+0x170/0x950 [ 24.833637] split_vma+0xc6/0x110 [ 24.834083] mprotect_fixup+0x8d2/0xb30 [ 24.834621] do_mprotect_pkey+0x87e/0xd40 [ 24.835146] __x64_sys_mprotect+0x78/0xc0 [ 24.835691] do_syscall_64+0x3f/0x90 [ 24.836167] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 24.836846] [ 24.837062] Freed by task 204: [ 24.837467] kasan_save_stack+0x22/0x50 [ 24.838001] kasan_set_track+0x25/0x30 [ 24.838529] kasan_save_free_info+0x2b/0x50 [ 24.839107] __kasan_slab_free+0x10a/0x190 [ 24.839673] kmem_cache_free+0x10d/0x4d0 [ 24.840191] rcu_core+0x8c8/0x2860 [ 24.840672] __do_softirq+0x1b7/0x7d4 [ 24.841159] [ 24.841377] Last potentially related work creation: [ 24.841980] kasan_save_stack+0x22/0x50 [ 24.842506] __kasan_record_aux_stack+0x8e/0xa0 [ 24.843167] __call_rcu_common.constprop.0+0x6a/0xb90 [ 24.843828] remove_vma+0x139/0x170 [ 24.844281] do_vmi_align_munmap+0xd4a/0x11f0 [ 24.844917] do_vmi_munmap+0x1f1/0x2b0 [ 24.845430] __vm_munmap+0x138/0x3a0 [ 24.845947] __x64_sys_munmap+0x59/0x80 [ 24.846476] do_syscall_64+0x3f/0x90 [ 24.846974] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 24.847624] [ 24.847839] The buggy address belongs to the object at ffff888016467d98 [ 24.847839] which belongs to the cache vm_area_struct of size 168 [ 24.849330] The buggy address is located 88 bytes inside of [ 24.849330] freed 168-byte region [ffff888016467d98, ffff888016467e40) [ 24.850823] [ 24.851044] The buggy address belongs to the physical page: [ 24.851719] page:000000006fafa63a refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x16467 [ 24.852821] memcg:ffff888016e9c201 [ 24.853249] flags: 0x100000000000200(slab|node=0|zone=1) [ 24.853922] page_type: 0xffffffff() [ 24.854391] raw: 0100000000000200 ffff88800879fc80 dead000000000122 0000000000000000 [ 24.855324] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff888016e9c201 [ 24.856239] page dumped because: kasan: bad access detected [ 24.856920] [ 24.857138] Memory state around the buggy address: [ 24.857743] ffff888016467c80: fc fc fc fc fc fc 00 00 00 00 00 00 00 00 00 00 [ 24.858635] ffff888016467d00: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc [ 24.859489] >ffff888016467d80: fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb fb [ 24.860345] ^ [ 24.861174] ffff888016467e00: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 24.862063] ffff888016467e80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.862962] ================================================================== [ 24.863900] Disabling lock debugging due to kernel taint Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 26.574099] BUG: Bad rss-counter state mm:00000000edf03571 type:MM_FILEPAGES val:33 [ 26.574701] BUG: Bad rss-counter state mm:00000000edf03571 type:MM_ANONPAGES val:22 [ 27.000610] BUG: Bad rss-counter state mm:0000000089f772f7 type:MM_FILEPAGES val:33 [ 27.001805] BUG: Bad rss-counter state mm:0000000089f772f7 type:MM_ANONPAGES val:22 Warning: Permanently added '[localhost]:26509' (ECDSA) to the list of known hosts. [ 27.123193] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 27.124720] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 27.125647] CPU: 0 PID: 238 Comm: sshd Tainted: G B 6.4.0-rc7-next-20230619 #1 [ 27.126769] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 27.127782] RIP: 0010:__rb_insert_augmented+0x78/0x8b0 [ 27.128462] 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 [ 27.130657] RSP: 0018:ffff88800f9078a8 EFLAGS: 00010212 [ 27.131315] RAX: ffff88801933f2c8 RBX: ffff88800e936780 RCX: ffffffff844ce9df [ 27.132200] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff888015f873e0 [ 27.133084] RBP: ffff888015f873e0 R08: 0000000000000008 R09: 0000000000000000 [ 27.133974] R10: 0000000000000000 R11: 00000000000b6996 R12: 0000000000000000 [ 27.134877] R13: dffffc0000000000 R14: ffff88800f907988 R15: ffffffff816e61c0 [ 27.135760] FS: 00007f98203a5900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 27.136776] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.137481] CR2: 00007f982035b000 CR3: 000000000c426000 CR4: 0000000000350ef0 [ 27.138358] Call Trace: [ 27.138696] [ 27.138998] ? die_addr+0x3c/0xa0 [ 27.139473] ? exc_general_protection+0x125/0x220 [ 27.140135] ? asm_exc_general_protection+0x26/0x30 [ 27.140798] ? __pfx_vma_interval_tree_augment_rotate+0x10/0x10 [ 27.141612] ? __rb_insert_augmented+0x5cf/0x8b0 [ 27.142253] ? __rb_insert_augmented+0x78/0x8b0 [ 27.142882] ? __rb_insert_augmented+0x5cf/0x8b0 [ 27.143529] vma_prepare+0xa1a/0x11a0 [ 27.144045] __split_vma+0x5af/0x950 [ 27.144546] ? __pfx___split_vma+0x10/0x10 [ 27.145118] ? lock_acquire+0x434/0x4c0 [ 27.145660] do_vmi_align_munmap+0x361/0x11f0 [ 27.146309] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 27.146981] ? mtree_range_walk+0x632/0x900 [ 27.147584] ? mas_walk+0x5c7/0x7c0 [ 27.148103] do_vmi_munmap+0x1f1/0x2b0 [ 27.148654] mmap_region+0x1f9/0x2660 [ 27.149184] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 27.149968] ? __pfx_lock_acquire+0x10/0x10 [ 27.150564] ? __pfx_mmap_region+0x10/0x10 [ 27.151150] ? security_mmap_addr+0x7d/0xa0 [ 27.151734] ? get_unmapped_area+0x1f5/0x3f0 [ 27.152305] do_mmap+0x854/0xf00 [ 27.152745] vm_mmap_pgoff+0x1a6/0x3a0 [ 27.153236] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 27.153799] ksys_mmap_pgoff+0x3af/0x500 [ 27.154316] do_syscall_64+0x3f/0x90 [ 27.154789] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 27.155419] RIP: 0033:0x7f9820f37d82 [ 27.155866] 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 [ 27.157965] RSP: 002b:00007fff61750c18 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 27.158860] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f9820f37d82 [ 27.159703] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f9820356000 [ 27.160540] RBP: 00007f9820356000 R08: 0000000000000008 R09: 0000000000001000 [ 27.161381] R10: 0000000000000812 R11: 0000000000000206 R12: 000055b63d5befe0 [ 27.162232] R13: 00007fff61750c30 R14: 00007fff61750c60 R15: 00007fff61750fc0 [ 27.163076] [ 27.163368] Modules linked in: [ 27.164454] ---[ end trace 0000000000000000 ]--- [ 27.165041] RIP: 0010:__rb_insert_augmented+0x78/0x8b0 [ 27.165905] 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 [ 27.168058] RSP: 0018:ffff88800f9078a8 EFLAGS: 00010212 [ 27.168781] RAX: ffff88801933f2c8 RBX: ffff88800e936780 RCX: ffffffff844ce9df [ 27.169837] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff888015f873e0 [ 27.170872] RBP: ffff888015f873e0 R08: 0000000000000008 R09: 0000000000000000 [ 27.171830] R10: 0000000000000000 R11: 00000000000b6996 R12: 0000000000000000 [ 27.172689] R13: dffffc0000000000 R14: ffff88800f907988 R15: ffffffff816e61c0 [ 27.173585] FS: 00007f98203a5900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 27.174580] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.175273] CR2: 00007f982035b000 CR3: 000000000c426000 CR4: 0000000000350ef0 VM DIAGNOSIS: 21:17:19 Registers: info registers vcpu 0 RAX=ffff88806ce35000 RBX=0000000000000000 RCX=ffffffff8450c50e RDX=ffffed100d9c6a01 RSI=0000000000000004 RDI=ffffffff812889a5 RBP=dffffc0000000000 RSP=ffffffff85407e10 R8 =0000000000000000 R9 =ffffed100d9c6a00 R10=ffff88806ce35003 R11=0000000000000001 R12=ffffffff85d3bed0 R13=1ffffffff0a80fc7 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 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=000055ed5029d290 CR3=0000000005482000 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=00007f757fccf510000055a74b58f790 XMM02=6f6974707972636e6561737268746977 XMM03=00000000000000000000000000777074 XMM04=40404040404040404040404040404040 XMM05=5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a XMM06=20202020202020202020202020202020 XMM07=ffffffffffff00ffffff00ffffff00ff XMM08=00002000000000202020002020200000 XMM09=ffffffffffff00ffffff00ffffff00ff XMM10=00002000000000202020002020200000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000080000000 RBX=0000000000000008 RCX=ffffffff8449eeda RDX=00007f889b7e6044 RSI=00007f889acc6fff RDI=0000000000000006 RBP=ffff88800b3a8408 RSP=ffff88800eb7fcc0 R8 =0000000000000006 R9 =00007f889acc6fff R10=00007f889b7e6044 R11=0000000000000000 R12=0000000000000000 R13=0000000000000002 R14=00007f889b7e6044 R15=00007f889acc6fff RIP=ffffffff814c01d0 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 00007f889ac92900 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=00007f889b7e6044 CR3=0000000013a66000 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=00000000000000000000000000000000 XMM02=000000000000000000000000000000ff XMM03=c6f1b5dadec14fc735cabe6e42e6f5fd XMM04=59c9d850446fa116ffaf7097fdd41589 XMM05=000000000000000000000000000000ff XMM06=59c9b550446f4f1635af706e42d41589 XMM07=672065736f6c635f6e6f69737365733a XMM08=652075253d64692073253d706f000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000