[ OK ] Finished Update UTMP about System Runlevel Changes. [ 23.809375] BUG: Bad rss-counter state mm:0000000021225e05 type:MM_FILEPAGES val:33 [ 23.809407] BUG: Bad rss-counter state mm:0000000021225e05 type:MM_ANONPAGES val:22 [ 24.274336] ================================================================== [ 24.275268] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0 [ 24.276229] Read of size 8 at addr ffff88801a24bc20 by task sshd/221 [ 24.277005] [ 24.277388] CPU: 1 PID: 221 Comm: sshd Not tainted 6.4.0-rc7-next-20230620 #1 [ 24.278282] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 24.279265] Call Trace: [ 24.279585] [ 24.279883] dump_stack_lvl+0x91/0xf0 [ 24.280391] print_report+0xcc/0x620 [ 24.280889] ? __virt_addr_valid+0x102/0x340 [ 24.281445] ? vma_interval_tree_remove+0xc75/0xec0 [ 24.282068] ? vma_interval_tree_remove+0xc75/0xec0 [ 24.282700] kasan_report+0xbe/0xf0 [ 24.283196] ? vma_interval_tree_remove+0xc75/0xec0 [ 24.283833] vma_interval_tree_remove+0xc75/0xec0 [ 24.284471] vma_prepare+0xc54/0x11a0 [ 24.284963] __split_vma+0x5af/0x950 [ 24.285443] ? __pfx___split_vma+0x10/0x10 [ 24.285984] ? find_held_lock+0x2c/0x110 [ 24.286509] do_vmi_align_munmap+0x2ba/0x11f0 [ 24.287085] ? lock_is_held_type+0x9f/0x120 [ 24.287642] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 24.288269] ? mtree_range_walk+0x632/0x900 [ 24.288824] ? mas_walk+0x5c7/0x7c0 [ 24.289307] do_vmi_munmap+0x1f1/0x2b0 [ 24.289801] mmap_region+0x1f9/0x2660 [ 24.290291] ? vm_mmap_pgoff+0x15c/0x3a0 [ 24.290808] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 24.291535] ? __pfx_lock_acquire+0x10/0x10 [ 24.292085] ? __pfx_mmap_region+0x10/0x10 [ 24.292624] ? security_mmap_addr+0x7d/0xa0 [ 24.293165] ? get_unmapped_area+0x1f5/0x3f0 [ 24.293726] do_mmap+0x854/0xf00 [ 24.294171] vm_mmap_pgoff+0x1a6/0x3a0 [ 24.294670] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 24.295239] ksys_mmap_pgoff+0x3af/0x500 [ 24.295749] do_syscall_64+0x3f/0x90 [ 24.296256] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 24.296905] RIP: 0033:0x7fdff1318d82 [ 24.297363] 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 [ 24.299493] RSP: 002b:00007ffeb6216dc8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 24.300411] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fdff1318d82 [ 24.301260] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007fdff0752000 [ 24.302117] RBP: 00007fdff0752000 R08: 0000000000000009 R09: 0000000000001000 [ 24.302966] R10: 0000000000000812 R11: 0000000000000206 R12: 000055611c547ec0 [ 24.303813] R13: 00007ffeb6216de0 R14: 00007ffeb6216e10 R15: 00007ffeb6217170 [ 24.304685] [ 24.304980] [ 24.305198] Allocated by task 205: [ 24.305631] kasan_save_stack+0x22/0x50 [ 24.306140] kasan_set_track+0x25/0x30 [ 24.306646] __kasan_slab_alloc+0x59/0x70 [ 24.307176] kmem_cache_alloc+0x16b/0x370 [ 24.307699] vm_area_dup+0x20/0x160 [ 24.308177] __split_vma+0x170/0x950 [ 24.308645] split_vma+0xc6/0x110 [ 24.309088] mprotect_fixup+0x8d2/0xb30 [ 24.309591] do_mprotect_pkey+0x87e/0xd40 [ 24.310117] __x64_sys_mprotect+0x78/0xc0 [ 24.310640] do_syscall_64+0x3f/0x90 [ 24.311124] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 24.311770] [ 24.312002] Freed by task 203: [ 24.312393] kasan_save_stack+0x22/0x50 [ 24.312896] kasan_set_track+0x25/0x30 [ 24.313400] kasan_save_free_info+0x2b/0x50 [ 24.313932] __kasan_slab_free+0x10a/0x190 [ 24.314468] kmem_cache_free+0x10d/0x4d0 [ 24.314980] rcu_core+0x8c8/0x2860 [ 24.315431] __do_softirq+0x1b7/0x7d4 [ 24.315929] [ 24.316151] Last potentially related work creation: [ 24.316744] kasan_save_stack+0x22/0x50 [ 24.317247] __kasan_record_aux_stack+0x8e/0xa0 [ 24.317819] __call_rcu_common.constprop.0+0x6a/0xb90 [ 24.318526] remove_vma+0x139/0x170 [ 24.319010] do_vmi_align_munmap+0xd4a/0x11f0 [ 24.319574] do_vmi_munmap+0x1f1/0x2b0 [ 24.320076] __vm_munmap+0x138/0x3a0 [ 24.320550] __x64_sys_munmap+0x59/0x80 [ 24.321047] do_syscall_64+0x3f/0x90 [ 24.321531] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 24.322177] [ 24.322395] The buggy address belongs to the object at ffff88801a24bbc8 [ 24.322395] which belongs to the cache vm_area_struct of size 168 [ 24.323887] The buggy address is located 88 bytes inside of [ 24.323887] freed 168-byte region [ffff88801a24bbc8, ffff88801a24bc70) [ 24.325307] [ 24.325525] The buggy address belongs to the physical page: [ 24.326192] page:000000000138d44f refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1a24b [ 24.327283] memcg:ffff888019d57301 [ 24.327720] flags: 0x100000000000200(slab|node=0|zone=1) [ 24.328373] page_type: 0xffffffff() [ 24.328832] raw: 0100000000000200 ffff8880087a0c80 dead000000000122 0000000000000000 [ 24.329761] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff888019d57301 [ 24.330681] page dumped because: kasan: bad access detected [ 24.331351] [ 24.331573] Memory state around the buggy address: [ 24.332173] ffff88801a24bb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 24.333033] ffff88801a24bb80: 00 fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb [ 24.333911] >ffff88801a24bc00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc [ 24.334761] ^ [ 24.335292] ffff88801a24bc80: fc fc fc fc fc fc fa fb fb fb fb fb fb fb fb fb [ 24.336166] ffff88801a24bd00: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc [ 24.337022] ================================================================== [ 24.338005] Disabling lock debugging due to kernel taint Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 26.212660] BUG: Bad rss-counter state mm:0000000096afc393 type:MM_FILEPAGES val:33 [ 26.213419] BUG: Bad rss-counter state mm:0000000096afc393 type:MM_ANONPAGES val:22 [ 26.634023] BUG: Bad rss-counter state mm:00000000dd8f8067 type:MM_FILEPAGES val:33 [ 26.634784] BUG: Bad rss-counter state mm:00000000dd8f8067 type:MM_ANONPAGES val:22 Warning: Permanently added '[localhost]:32235' (ECDSA) to the list of known hosts. [ 26.737767] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 26.738774] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 26.739439] CPU: 0 PID: 237 Comm: sshd Tainted: G B 6.4.0-rc7-next-20230620 #1 [ 26.740207] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 26.740928] RIP: 0010:__rb_insert_augmented+0x78/0x8b0 [ 26.741418] 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 [ 26.743102] RSP: 0018:ffff88800c6778a8 EFLAGS: 00010212 [ 26.743580] RAX: ffff888019be3758 RBX: ffff888013ef72f8 RCX: 1ffff110027dee5f [ 26.744243] RDX: 0000000000000001 RSI: ffff888019be3758 RDI: ffff888013ef72f8 [ 26.744881] RBP: ffff88801a2573e0 R08: 0000000000000008 R09: 0000000000000000 [ 26.745536] R10: 0000000000000000 R11: 00000000000b6a61 R12: 0000000000000000 [ 26.746185] R13: dffffc0000000000 R14: ffff88800c677988 R15: ffffffff816e6340 [ 26.746840] FS: 00007f10ec012900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 26.747564] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.748105] CR2: 00007f10ebfde000 CR3: 000000000c484000 CR4: 0000000000350ef0 [ 26.748748] Call Trace: [ 26.748990] [ 26.749204] ? die_addr+0x3c/0xa0 [ 26.749538] ? exc_general_protection+0x125/0x220 [ 26.750011] ? asm_exc_general_protection+0x26/0x30 [ 26.750488] ? __pfx_vma_interval_tree_augment_rotate+0x10/0x10 [ 26.751065] ? __rb_insert_augmented+0x78/0x8b0 [ 26.751516] ? vma_interval_tree_insert+0x23a/0x400 [ 26.752004] vma_prepare+0xa1a/0x11a0 [ 26.752367] __split_vma+0x5af/0x950 [ 26.752721] ? __pfx___split_vma+0x10/0x10 [ 26.753122] ? lock_acquire+0x434/0x4c0 [ 26.753506] do_vmi_align_munmap+0x361/0x11f0 [ 26.753944] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 26.754404] ? mtree_range_walk+0x632/0x900 [ 26.754832] ? mas_walk+0x5c7/0x7c0 [ 26.755197] do_vmi_munmap+0x1f1/0x2b0 [ 26.755574] mmap_region+0x1f9/0x2660 [ 26.755949] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 26.756487] ? __pfx_lock_acquire+0x10/0x10 [ 26.756905] ? __pfx_mmap_region+0x10/0x10 [ 26.757306] ? security_mmap_addr+0x7d/0xa0 [ 26.757711] ? get_unmapped_area+0x1f5/0x3f0 [ 26.758124] do_mmap+0x854/0xf00 [ 26.758458] vm_mmap_pgoff+0x1a6/0x3a0 [ 26.758845] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 26.759277] ksys_mmap_pgoff+0x3af/0x500 [ 26.759666] do_syscall_64+0x3f/0x90 [ 26.760040] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 26.760548] RIP: 0033:0x7f10ecba4d82 [ 26.760899] 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 [ 26.762514] RSP: 002b:00007ffd316afc88 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 26.763213] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f10ecba4d82 [ 26.763862] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f10ebfd9000 [ 26.764533] RBP: 00007f10ebfd9000 R08: 0000000000000009 R09: 0000000000001000 [ 26.765174] R10: 0000000000000812 R11: 0000000000000206 R12: 00005571f59373a0 [ 26.765813] R13: 00007ffd316afca0 R14: 00007ffd316afcd0 R15: 00007ffd316b0030 [ 26.766475] [ 26.766695] Modules linked in: [ 26.767079] ---[ end trace 0000000000000000 ]--- [ 26.767509] RIP: 0010:__rb_insert_augmented+0x78/0x8b0 [ 26.768155] 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 [ 26.770033] RSP: 0018:ffff88800c6778a8 EFLAGS: 00010212 [ 26.770543] RAX: ffff888019be3758 RBX: ffff888013ef72f8 RCX: 1ffff110027dee5f [ 26.771432] RDX: 0000000000000001 RSI: ffff888019be3758 RDI: ffff888013ef72f8 [ 26.772304] RBP: ffff88801a2573e0 R08: 0000000000000008 R09: 0000000000000000 [ 26.773204] R10: 0000000000000000 R11: 00000000000b6a61 R12: 0000000000000000 [ 26.774036] R13: dffffc0000000000 R14: ffff88800c677988 R15: ffffffff816e6340 [ 26.774694] FS: 00007f10ec012900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 26.775432] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.776001] CR2: 00007f10ebfde000 CR3: 000000000c484000 CR4: 0000000000350ef0 VM DIAGNOSIS: 14:26:07 Registers: info registers vcpu 0 RAX=ffffffff863b941f RBX=0000000000000001 RCX=ffffffff863b941c RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff863b941e RBP=ffff88800e5d7600 RSP=ffff88800e5d7538 R8 =0000000000000001 R9 =ffff88800e5d75e8 R10=0000000000038001 R11=000000000008b92e R12=ffff88800e5d7608 R13=ffff88800e5d75f0 R14=ffff88800e5d79c0 R15=ffff88800e5d75a8 RIP=ffffffff811311e5 RFL=00000297 [--S-APC] 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 00007f3a75d93900 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=00007f3a7634a618 CR3=000000000c484000 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=6e69676f6c5f6d61702c78756e696c65 XMM02=755f6d61702c74696d7265705f6d6170 XMM03=2c766e655f6d61702c7374696d696c5f XMM04=6d61702c766e655f6d61702c7374696d XMM05=78696e755f6d61702c74696d7265705f XMM06=6469756e69676f6c5f6d61702c78756e XMM07=672065736f6c635f6e6f69737365733a XMM08=61662029286e65706f5f746964756100 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=ffffffff860b9c92 RBX=0000000000000001 RCX=ffffffff81288ac4 RDX=0000000000000000 RSI=ffffffff860b9c62 RDI=ffffffff85da9400 RBP=ffff88806cf09af0 RSP=ffff88806cf09a28 R8 =ffffffff860b9c62 R9 =ffff88806cf09ad8 R10=0000000000038001 R11=000000000000ba8f R12=ffff88806cf09af8 R13=ffff88806cf09ae0 R14=ffff88806cf09ad9 R15=ffff88806cf09a98 RIP=ffffffff81130881 RFL=00000286 [--S--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=00007fa43036fcc0 CR3=0000000016ed4000 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=2037303a36323a3431203032206e754a XMM01=73732878696e755f6d6170203a5d3832 XMM02=65736f6c63206e6f6973736573203a29 XMM03=755f6d6170203a5d3832325b64687373 XMM04=69662068637573206f4e203a656c6163 XMM05=3a656c696620766e65206e65706f206f XMM06=65733a6468737328766e655f6d617020 XMM07=6b7a79732037303a36323a3431203032 XMM08=69767265733d7373616c63742030733a XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000