[ OK ] Finished Update UTMP about System Runlevel Changes. [ 23.506747] BUG: Bad rss-counter state mm:000000008568a971 type:MM_FILEPAGES val:33 [ 23.506770] BUG: Bad rss-counter state mm:000000008568a971 type:MM_ANONPAGES val:22 [ 23.898410] ================================================================== [ 23.899317] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0 [ 23.900273] Read of size 8 at addr ffff888019a11798 by task sshd/220 [ 23.901071] [ 23.901288] CPU: 0 PID: 220 Comm: sshd Not tainted 6.4.0-rc7-next-20230620 #1 [ 23.902370] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 23.903353] Call Trace: [ 23.903683] [ 23.903987] dump_stack_lvl+0x91/0xf0 [ 23.904479] print_report+0xcc/0x620 [ 23.904982] ? __virt_addr_valid+0x102/0x340 [ 23.905531] ? vma_interval_tree_remove+0xc75/0xec0 [ 23.906152] ? vma_interval_tree_remove+0xc75/0xec0 [ 23.906790] kasan_report+0xbe/0xf0 [ 23.907269] ? vma_interval_tree_remove+0xc75/0xec0 [ 23.907890] vma_interval_tree_remove+0xc75/0xec0 [ 23.908504] vma_prepare+0xc54/0x11a0 [ 23.908996] __split_vma+0x5af/0x950 [ 23.909468] ? __pfx___split_vma+0x10/0x10 [ 23.909997] ? find_held_lock+0x2c/0x110 [ 23.910532] do_vmi_align_munmap+0x2ba/0x11f0 [ 23.911095] ? lock_is_held_type+0x9f/0x120 [ 23.911639] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 23.912241] ? mtree_range_walk+0x632/0x900 [ 23.912816] ? mas_walk+0x5c7/0x7c0 [ 23.913289] do_vmi_munmap+0x1f1/0x2b0 [ 23.913780] mmap_region+0x1f9/0x2660 [ 23.914266] ? vm_mmap_pgoff+0x15c/0x3a0 [ 23.914778] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 23.915503] ? __pfx_lock_acquire+0x10/0x10 [ 23.916045] ? __pfx_mmap_region+0x10/0x10 [ 23.916597] ? security_mmap_addr+0x7d/0xa0 [ 23.917138] ? get_unmapped_area+0x1f5/0x3f0 [ 23.917704] do_mmap+0x854/0xf00 [ 23.918157] vm_mmap_pgoff+0x1a6/0x3a0 [ 23.918662] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 23.919231] ksys_mmap_pgoff+0x3af/0x500 [ 23.919744] do_syscall_64+0x3f/0x90 [ 23.920230] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 23.920902] RIP: 0033:0x7f5fd0691d82 [ 23.921367] 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 [ 23.923521] RSP: 002b:00007fff0bdfe5f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 23.924438] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f5fd0691d82 [ 23.925302] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f5fcfacb000 [ 23.926151] RBP: 00007f5fcfacb000 R08: 0000000000000009 R09: 0000000000001000 [ 23.927000] R10: 0000000000000812 R11: 0000000000000206 R12: 0000555b70de3ec0 [ 23.927841] R13: 00007fff0bdfe610 R14: 00007fff0bdfe640 R15: 00007fff0bdfe9a0 [ 23.928705] [ 23.928998] [ 23.929213] Allocated by task 205: [ 23.929645] kasan_save_stack+0x22/0x50 [ 23.930153] kasan_set_track+0x25/0x30 [ 23.930655] __kasan_slab_alloc+0x59/0x70 [ 23.931174] kmem_cache_alloc+0x16b/0x370 [ 23.931693] vm_area_dup+0x20/0x160 [ 23.932145] __split_vma+0x170/0x950 [ 23.932617] split_vma+0xc6/0x110 [ 23.933055] mprotect_fixup+0x8d2/0xb30 [ 23.933554] do_mprotect_pkey+0x87e/0xd40 [ 23.934070] __x64_sys_mprotect+0x78/0xc0 [ 23.934588] do_syscall_64+0x3f/0x90 [ 23.935070] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 23.935709] [ 23.935927] Freed by task 202: [ 23.936354] kasan_save_stack+0x22/0x50 [ 23.936888] kasan_set_track+0x25/0x30 [ 23.937380] kasan_save_free_info+0x2b/0x50 [ 23.937912] __kasan_slab_free+0x10a/0x190 [ 23.938452] kmem_cache_free+0x10d/0x4d0 [ 23.938972] rcu_core+0x8c8/0x2860 [ 23.939422] __do_softirq+0x1b7/0x7d4 [ 23.939911] [ 23.940127] Last potentially related work creation: [ 23.940731] kasan_save_stack+0x22/0x50 [ 23.941234] __kasan_record_aux_stack+0x8e/0xa0 [ 23.941808] __call_rcu_common.constprop.0+0x6a/0xb90 [ 23.942470] remove_vma+0x139/0x170 [ 23.942929] do_vmi_align_munmap+0xd4a/0x11f0 [ 23.943498] do_vmi_munmap+0x1f1/0x2b0 [ 23.944001] __vm_munmap+0x138/0x3a0 [ 23.944468] __x64_sys_munmap+0x59/0x80 [ 23.944982] do_syscall_64+0x3f/0x90 [ 23.945465] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 23.946107] [ 23.946320] The buggy address belongs to the object at ffff888019a11740 [ 23.946320] which belongs to the cache vm_area_struct of size 168 [ 23.947777] The buggy address is located 88 bytes inside of [ 23.947777] freed 168-byte region [ffff888019a11740, ffff888019a117e8) [ 23.949186] [ 23.949401] The buggy address belongs to the physical page: [ 23.950054] page:000000002dc63702 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x19a11 [ 23.951142] memcg:ffff888019a0f101 [ 23.951572] flags: 0x100000000000200(slab|node=0|zone=1) [ 23.952213] page_type: 0xffffffff() [ 23.952672] raw: 0100000000000200 ffff8880087a0c80 dead000000000122 0000000000000000 [ 23.953586] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff888019a0f101 [ 23.954484] page dumped because: kasan: bad access detected [ 23.955146] [ 23.955361] Memory state around the buggy address: [ 23.955937] ffff888019a11680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.956803] ffff888019a11700: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 23.957649] >ffff888019a11780: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc [ 23.958504] ^ [ 23.958999] ffff888019a11800: fc fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb [ 23.959857] ffff888019a11880: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 23.960722] ================================================================== [ 23.961823] Disabling lock debugging due to kernel taint Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 25.907386] BUG: Bad rss-counter state mm:0000000058706703 type:MM_FILEPAGES val:33 [ 25.908664] BUG: Bad rss-counter state mm:0000000058706703 type:MM_ANONPAGES val:22 [ 26.458032] BUG: Bad rss-counter state mm:00000000232bd500 type:MM_FILEPAGES val:33 [ 26.459062] BUG: Bad rss-counter state mm:00000000232bd500 type:MM_ANONPAGES val:22 Warning: Permanently added '[localhost]:49939' (ECDSA) to the list of known hosts. [ 26.615930] general protection fault, probably for non-canonical address 0xe0e13c2f40000019: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 26.617323] KASAN: maybe wild-memory-access in range [0x070a017a000000c8-0x070a017a000000cf] [ 26.618329] CPU: 0 PID: 236 Comm: sshd Tainted: G B 6.4.0-rc7-next-20230620 #1 [ 26.619356] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 26.620329] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0 [ 26.621025] 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 [ 26.623179] RSP: 0018:ffff88800e337948 EFLAGS: 00010213 [ 26.623831] RAX: ffff8880190e8fb8 RBX: ffff88800f0b3b20 RCX: ffffffff844d49f9 [ 26.624687] RDX: 00e1402f40000019 RSI: 0000000000000008 RDI: ffff88800e1b4c88 [ 26.625533] RBP: ffff88800fd41bc0 R08: ffff88800e1b4c88 R09: 0000000000000000 [ 26.626424] R10: 0000000000000003 R11: 00000000000b6a61 R12: ffff88800e1b4c80 [ 26.627272] R13: dffffc0000000000 R14: 070a017a000000cf R15: ffffffff816e6340 [ 26.628121] FS: 00007f71bd708900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 26.629079] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.629790] CR2: 000055cf53a2b1c0 CR3: 000000000e9a0000 CR4: 0000000000350ef0 [ 26.630649] Call Trace: [ 26.630972] [ 26.631258] ? die_addr+0x3c/0xa0 [ 26.631705] ? exc_general_protection+0x125/0x220 [ 26.632333] ? asm_exc_general_protection+0x26/0x30 [ 26.632989] ? __pfx_vma_interval_tree_augment_rotate+0x10/0x10 [ 26.633721] ? __rb_insert_augmented+0x5e9/0x8b0 [ 26.634318] ? __rb_insert_augmented+0x9d/0x8b0 [ 26.634912] ? __rb_insert_augmented+0x5e9/0x8b0 [ 26.635502] ? vma_interval_tree_insert_after+0x315/0x390 [ 26.636174] dup_mmap+0xc45/0x1770 [ 26.636652] ? __pfx_dup_mmap+0x10/0x10 [ 26.637150] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 26.637736] ? _raw_spin_unlock_irqrestore+0x2c/0x50 [ 26.638357] ? trace_hardirqs_on+0x16/0x100 [ 26.638906] ? mm_init+0xb4a/0xe70 [ 26.639349] copy_process+0x3e68/0x7320 [ 26.639844] ? lock_acquire+0x434/0x4c0 [ 26.640343] ? __pfx_copy_process+0x10/0x10 [ 26.640910] ? expand_files+0x446/0x8e0 [ 26.641418] kernel_clone+0xeb/0x7d0 [ 26.641891] ? __pfx_kernel_clone+0x10/0x10 [ 26.642427] ? lock_acquire+0x434/0x4c0 [ 26.642923] ? lock_release+0x4d8/0x680 [ 26.643416] ? __pfx_lock_release+0x10/0x10 [ 26.643950] ? __pfx_lock_release+0x10/0x10 [ 26.644481] ? _raw_spin_unlock+0x1e/0x40 [ 26.644998] ? alloc_fd+0x2eb/0x760 [ 26.645464] __do_sys_clone+0xba/0x100 [ 26.645948] ? __pfx___do_sys_clone+0x10/0x10 [ 26.646513] ? fpregs_assert_state_consistent+0xbd/0xe0 [ 26.647164] do_syscall_64+0x3f/0x90 [ 26.647638] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 26.648276] RIP: 0033:0x7f71bdbc74bb [ 26.648742] Code: ed 0f 85 f8 00 00 00 64 4c 8b 0c 25 10 00 00 00 45 31 c0 4d 8d 91 d0 02 00 00 31 d2 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 91 00 00 00 41 89 c5 85 c0 0f 85 9e 00 00 [ 26.650872] RSP: 002b:00007ffcad588640 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 26.651775] RAX: ffffffffffffffda RBX: 0000000000009f16 RCX: 00007f71bdbc74bb [ 26.652642] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 26.653482] RBP: 0000000000000000 R08: 0000000000000000 R09: 00007f71bd708900 [ 26.654321] R10: 00007f71bd708bd0 R11: 0000000000000246 R12: 0000000000000000 [ 26.655164] R13: 000055cf53a38ec0 R14: 000055cf53a492e0 R15: 00007ffcad5886c0 [ 26.656027] [ 26.656315] Modules linked in: [ 26.656775] ---[ end trace 0000000000000000 ]--- [ 26.657355] RIP: 0010:__rb_insert_augmented+0x9d/0x8b0 [ 26.658011] 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 [ 26.660287] RSP: 0018:ffff88800e337948 EFLAGS: 00010213 [ 26.661039] RAX: ffff8880190e8fb8 RBX: ffff88800f0b3b20 RCX: ffffffff844d49f9 [ 26.661971] RDX: 00e1402f40000019 RSI: 0000000000000008 RDI: ffff88800e1b4c88 [ 26.662922] RBP: ffff88800fd41bc0 R08: ffff88800e1b4c88 R09: 0000000000000000 [ 26.663869] R10: 0000000000000003 R11: 00000000000b6a61 R12: ffff88800e1b4c80 [ 26.664821] R13: dffffc0000000000 R14: 070a017a000000cf R15: ffffffff816e6340 [ 26.665788] FS: 00007f71bd708900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 26.666768] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.667497] CR2: 000055cf53a2b1c0 CR3: 000000000e9a0000 CR4: 0000000000350ef0 VM DIAGNOSIS: 18:17:17 Registers: info registers vcpu 0 RAX=0000000000000000 RBX=0000000000000002 RCX=1ffff1100d9c135e RDX=dffffc0000000000 RSI=1ffff1100d9c1355 RDI=ffff88806ce09a98 RBP=ffff88806ce09af0 RSP=ffff88806ce099d8 R8 =0000000000000000 R9 =0000000000000000 R10=ffff88806ce09a98 R11=00000000000b6a61 R12=ffff88806ce09af8 R13=ffff88806ce09ae0 R14=ffff88806ce09ad9 R15=ffff88806ce09a98 RIP=ffffffff81130706 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 00007f7c001fd700 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=00007f52d8a94c60 CR3=0000000016afe000 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=6d6f72662064657463656e6e6f637369 XMM02=2e303120746f6f722072657375206d6f XMM03=3a5d3732325b646873732037313a3731 XMM04=6456774875434142334f726f59427469 XMM05=485320415352203a3268737320303137 XMM06=206d6f726620746f6f7220726f662079 XMM07=00000000000000000000000000000000 XMM08=3a677562656420676f6c737973720000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=dffffc0000000000 RBX=ffff888008da7dc0 RCX=ffffffff812e0135 RDX=1ffffffff0ac301b RSI=0000000000000287 RDI=ffffffff856180e0 RBP=ffff888008da7dc8 RSP=ffff888008da7d28 R8 =0000000000000001 R9 =ffffed10011b4f93 R10=0000000000000003 R11=0000000000000000 R12=ffffffff85618098 R13=ffffffff856180d8 R14=ffffffff856180d8 R15=ffff888008da7dd0 RIP=ffffffff8129ec0f 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 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=00007fffb0dd8c38 CR3=0000000016afe000 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=2037313a37313a3831203032206e754a XMM01=73732878696e755f6d6170203a5d3732 XMM02=65736f6c63206e6f6973736573203a29 XMM03=755f6d6170203a5d3732325b64687373 XMM04=69662068637573206f4e203a656c6163 XMM05=3a656c696620766e65206e65706f206f XMM06=65733a6468737328766e655f6d617020 XMM07=6b7a79732037313a37313a3831203032 XMM08=3d656e696c646d632022656369767265 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000