[ OK ] Finished Update UTMP about System Runlevel Changes. [ 23.964879] BUG: Bad rss-counter state mm:00000000b38af173 type:MM_FILEPAGES val:33 [ 23.964910] BUG: Bad rss-counter state mm:00000000b38af173 type:MM_ANONPAGES val:22 [ 24.324192] ================================================================== [ 24.324867] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0 [ 24.325579] Read of size 8 at addr ffff888019a6cc20 by task sshd/220 [ 24.326148] [ 24.326307] CPU: 1 PID: 220 Comm: sshd Not tainted 6.4.0-rc7-next-20230620 #1 [ 24.326945] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 24.327671] Call Trace: [ 24.327951] [ 24.328225] dump_stack_lvl+0x91/0xf0 [ 24.328597] print_report+0xcc/0x620 [ 24.328956] ? __virt_addr_valid+0x102/0x340 [ 24.329368] ? vma_interval_tree_remove+0xc75/0xec0 [ 24.329825] ? vma_interval_tree_remove+0xc75/0xec0 [ 24.330290] kasan_report+0xbe/0xf0 [ 24.330648] ? vma_interval_tree_remove+0xc75/0xec0 [ 24.331111] vma_interval_tree_remove+0xc75/0xec0 [ 24.331568] vma_prepare+0xc54/0x11a0 [ 24.331927] __split_vma+0x5af/0x950 [ 24.332281] ? __pfx___split_vma+0x10/0x10 [ 24.332677] ? find_held_lock+0x2c/0x110 [ 24.333069] do_vmi_align_munmap+0x2ba/0x11f0 [ 24.333510] ? lock_is_held_type+0x9f/0x120 [ 24.333918] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 24.334367] ? mtree_range_walk+0x632/0x900 [ 24.334776] ? mas_walk+0x5c7/0x7c0 [ 24.335126] do_vmi_munmap+0x1f1/0x2b0 [ 24.335486] mmap_region+0x1f9/0x2660 [ 24.335833] ? vm_mmap_pgoff+0x15c/0x3a0 [ 24.336201] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 24.336725] ? __pfx_lock_acquire+0x10/0x10 [ 24.337118] ? __pfx_mmap_region+0x10/0x10 [ 24.337507] ? security_mmap_addr+0x7d/0xa0 [ 24.337895] ? get_unmapped_area+0x1f5/0x3f0 [ 24.338292] do_mmap+0x854/0xf00 [ 24.338612] vm_mmap_pgoff+0x1a6/0x3a0 [ 24.338974] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 24.339384] ksys_mmap_pgoff+0x3af/0x500 [ 24.339754] do_syscall_64+0x3f/0x90 [ 24.340098] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 24.340563] RIP: 0033:0x7fcc24182d82 [ 24.340900] 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 [ 24.342453] RSP: 002b:00007fffa80caf18 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 24.343113] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fcc24182d82 [ 24.343723] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007fcc235bc000 [ 24.344328] RBP: 00007fcc235bc000 R08: 0000000000000009 R09: 0000000000001000 [ 24.344936] R10: 0000000000000812 R11: 0000000000000206 R12: 000055a42b08aec0 [ 24.345551] R13: 00007fffa80caf30 R14: 00007fffa80caf60 R15: 00007fffa80cb2c0 [ 24.346167] [ 24.346376] [ 24.346532] Allocated by task 207: [ 24.346851] kasan_save_stack+0x22/0x50 [ 24.347213] kasan_set_track+0x25/0x30 [ 24.347572] __kasan_slab_alloc+0x59/0x70 [ 24.347949] kmem_cache_alloc+0x16b/0x370 [ 24.348321] vm_area_dup+0x20/0x160 [ 24.348653] __split_vma+0x170/0x950 [ 24.348995] split_vma+0xc6/0x110 [ 24.349317] mprotect_fixup+0x8d2/0xb30 [ 24.349691] do_mprotect_pkey+0x87e/0xd40 [ 24.350075] __x64_sys_mprotect+0x78/0xc0 [ 24.350452] do_syscall_64+0x3f/0x90 [ 24.350797] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 24.351270] [ 24.351423] Freed by task 26: [ 24.351696] kasan_save_stack+0x22/0x50 [ 24.352053] kasan_set_track+0x25/0x30 [ 24.352405] kasan_save_free_info+0x2b/0x50 [ 24.352785] __kasan_slab_free+0x10a/0x190 [ 24.353175] kmem_cache_free+0x10d/0x4d0 [ 24.353541] rcu_core+0x8c8/0x2860 [ 24.353858] __do_softirq+0x1b7/0x7d4 [ 24.354197] [ 24.354350] Last potentially related work creation: [ 24.354765] kasan_save_stack+0x22/0x50 [ 24.355123] __kasan_record_aux_stack+0x8e/0xa0 [ 24.355531] __call_rcu_common.constprop.0+0x6a/0xb90 [ 24.355993] remove_vma+0x139/0x170 [ 24.356314] do_vmi_align_munmap+0xd4a/0x11f0 [ 24.356710] do_vmi_munmap+0x1f1/0x2b0 [ 24.357055] __vm_munmap+0x138/0x3a0 [ 24.357389] __x64_sys_munmap+0x59/0x80 [ 24.357749] do_syscall_64+0x3f/0x90 [ 24.358088] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 24.358547] [ 24.358699] The buggy address belongs to the object at ffff888019a6cbc8 [ 24.358699] which belongs to the cache vm_area_struct of size 168 [ 24.359749] The buggy address is located 88 bytes inside of [ 24.359749] freed 168-byte region [ffff888019a6cbc8, ffff888019a6cc70) [ 24.360742] [ 24.360896] The buggy address belongs to the physical page: [ 24.361373] page:0000000055c155ee refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x19a6c [ 24.362160] memcg:ffff888019a41801 [ 24.362465] flags: 0x100000000000200(slab|node=0|zone=1) [ 24.362923] page_type: 0xffffffff() [ 24.363372] raw: 0100000000000200 ffff8880087a0c80 dead000000000122 0000000000000000 [ 24.364046] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff888019a41801 [ 24.364716] page dumped because: kasan: bad access detected [ 24.365207] [ 24.365368] Memory state around the buggy address: [ 24.365792] ffff888019a6cb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 24.366417] ffff888019a6cb80: 00 fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb [ 24.367049] >ffff888019a6cc00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc [ 24.367672] ^ [ 24.368069] ffff888019a6cc80: fc fc fc fc fc fc fa fb fb fb fb fb fb fb fb fb [ 24.368680] ffff888019a6cd00: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc [ 24.369299] ================================================================== [ 24.370114] Disabling lock debugging due to kernel taint Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 26.223748] BUG: Bad rss-counter state mm:00000000411613d5 type:MM_FILEPAGES val:33 [ 26.224772] BUG: Bad rss-counter state mm:00000000411613d5 type:MM_ANONPAGES val:22 [ 26.731826] BUG: Bad rss-counter state mm:00000000e05a91a4 type:MM_FILEPAGES val:33 [ 26.733017] BUG: Bad rss-counter state mm:00000000e05a91a4 type:MM_ANONPAGES val:22 Warning: Permanently added '[localhost]:56454' (ECDSA) to the list of known hosts. [ 26.846969] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 26.848488] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 26.849422] CPU: 0 PID: 238 Comm: sshd Tainted: G B 6.4.0-rc7-next-20230620 #1 [ 26.850438] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 26.851437] RIP: 0010:__rb_insert_augmented+0x78/0x8b0 [ 26.852117] 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 [ 26.854301] RSP: 0018:ffff8880159578a8 EFLAGS: 00010212 [ 26.854961] RAX: ffff8880192ddef8 RBX: ffff8880143a8cf0 RCX: 1ffff1100287519e [ 26.855834] RDX: 0000000000000001 RSI: ffff8880192ddef8 RDI: ffff8880143a8cf0 [ 26.856702] RBP: ffff888019b6bb20 R08: 0000000000000008 R09: 0000000000000000 [ 26.857619] R10: 0000000000000000 R11: 00000000000b6a61 R12: 0000000000000000 [ 26.858517] R13: dffffc0000000000 R14: ffff888015957988 R15: ffffffff816e6340 [ 26.859417] FS: 00007f12a8c6d900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 26.860428] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.861181] CR2: 00007f12a8c34000 CR3: 0000000016b66000 CR4: 0000000000350ef0 [ 26.862078] Call Trace: [ 26.862414] [ 26.862715] ? die_addr+0x3c/0xa0 [ 26.863187] ? exc_general_protection+0x125/0x220 [ 26.863832] ? asm_exc_general_protection+0x26/0x30 [ 26.864459] ? __pfx_vma_interval_tree_augment_rotate+0x10/0x10 [ 26.865191] ? __rb_insert_augmented+0x78/0x8b0 [ 26.865782] ? vma_interval_tree_insert+0x23a/0x400 [ 26.866395] vma_prepare+0xa1a/0x11a0 [ 26.866884] __split_vma+0x5af/0x950 [ 26.867386] ? __pfx___split_vma+0x10/0x10 [ 26.867939] ? lock_acquire+0x434/0x4c0 [ 26.868459] do_vmi_align_munmap+0x361/0x11f0 [ 26.869042] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 26.869680] ? mtree_range_walk+0x632/0x900 [ 26.870243] ? mas_walk+0x5c7/0x7c0 [ 26.870725] do_vmi_munmap+0x1f1/0x2b0 [ 26.871231] mmap_region+0x1f9/0x2660 [ 26.871732] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 26.872478] ? __pfx_lock_acquire+0x10/0x10 [ 26.873002] ? __pfx_mmap_region+0x10/0x10 [ 26.873531] ? security_mmap_addr+0x7d/0xa0 [ 26.874061] ? get_unmapped_area+0x1f5/0x3f0 [ 26.874609] do_mmap+0x854/0xf00 [ 26.875045] vm_mmap_pgoff+0x1a6/0x3a0 [ 26.875534] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 26.876085] ksys_mmap_pgoff+0x3af/0x500 [ 26.876584] do_syscall_64+0x3f/0x90 [ 26.877076] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 26.877743] RIP: 0033:0x7f12a97ffd82 [ 26.878193] 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 [ 26.880305] RSP: 002b:00007ffc9d2bf568 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 26.881219] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f12a97ffd82 [ 26.882071] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f12a8c2f000 [ 26.882909] RBP: 00007f12a8c2f000 R08: 0000000000000008 R09: 0000000000001000 [ 26.883753] R10: 0000000000000812 R11: 0000000000000206 R12: 0000558934c7d800 [ 26.884593] R13: 00007ffc9d2bf580 R14: 00007ffc9d2bf5b0 R15: 00007ffc9d2bf910 [ 26.885453] [ 26.885743] Modules linked in: [ 26.886333] ---[ end trace 0000000000000000 ]--- [ 26.887309] RIP: 0010:__rb_insert_augmented+0x78/0x8b0 [ 26.888216] 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 [ 26.890643] RSP: 0018:ffff8880159578a8 EFLAGS: 00010212 [ 26.891568] RAX: ffff8880192ddef8 RBX: ffff8880143a8cf0 RCX: 1ffff1100287519e [ 26.892611] RDX: 0000000000000001 RSI: ffff8880192ddef8 RDI: ffff8880143a8cf0 [ 26.893584] RBP: ffff888019b6bb20 R08: 0000000000000008 R09: 0000000000000000 [ 26.894613] R10: 0000000000000000 R11: 00000000000b6a61 R12: 0000000000000000 [ 26.895592] R13: dffffc0000000000 R14: ffff888015957988 R15: ffffffff816e6340 [ 26.896460] FS: 00007f12a8c6d900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 26.897466] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.898182] CR2: 00007f12a8c34000 CR3: 0000000016b66000 CR4: 0000000000350ef0 VM DIAGNOSIS: 00:57:50 Registers: info registers vcpu 0 RAX=dffffc0000000000 RBX=ffff888018723700 RCX=ffffffff8125b699 RDX=1ffff1100d9c72e6 RSI=0000000000000008 RDI=ffff88806ce39730 RBP=ffff88806ce395c0 RSP=ffff88806ce09da0 R8 =0000000000000000 R9 =0000000000000000 R10=ffffffff85d3d357 R11=ffff88806ce09ff8 R12=ffff88806ce395c0 R13=dffffc0000000000 R14=ffffffff852bfe00 R15=ffff888014173700 RIP=ffffffff8125236e 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 =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 00007fa0fe7f1900 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=00007fa0feda90b0 CR3=000000000f31a000 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=25252525252525252525252525252525 XMM01=000000000000000000000000000000ff XMM02=000000000000000000000000000000ff XMM03=5320444f4854454d5f54505952434e45 XMM04=40404040404040404040404040404040 XMM05=5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a XMM06=20202020202020202020202020202020 XMM07=00000000000000000000000000000000 XMM08=662079726f6d656d20666f2074756f00 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=ffff888008c04400 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=00007fd376933000 CR3=000000000c6bc000 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=d49bd67f7ba972b20648db7d744ea592 XMM02=000000000011a080ec2efd57dc4c00df XMM03=000000000011d3402c51c8bcbacb817e XMM04=4ed9e882daf9d56200000000000ae988 XMM05=19e9129bd510f2350000000000130a00 XMM06=9f5456d7ff2e1e32000000000012fbd8 XMM07=e042d86d42eb936e000000000011d5c0 XMM08=2c51c8bcbacb817e000000000011a0e0 XMM09=00000000000000000000000000000000 XMM10=20200000000020202020202020200000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000