[ OK ] Finished Update UTMP about System Runlevel Changes. [ 23.621703] BUG: Bad rss-counter state mm:00000000c4ebdc2c type:MM_FILEPAGES val:33 [ 23.621722] BUG: Bad rss-counter state mm:00000000c4ebdc2c type:MM_ANONPAGES val:22 [ 23.848303] ================================================================== [ 23.849001] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0 [ 23.849709] Read of size 8 at addr ffff88801aab7ed8 by task sshd/221 [ 23.850299] [ 23.850467] CPU: 1 PID: 221 Comm: sshd Not tainted 6.4.0-rc7-next-20230620 #1 [ 23.851282] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 23.852043] Call Trace: [ 23.852292] [ 23.852512] dump_stack_lvl+0x91/0xf0 [ 23.852896] print_report+0xcc/0x620 [ 23.853274] ? __virt_addr_valid+0x102/0x340 [ 23.853701] ? vma_interval_tree_remove+0xc75/0xec0 [ 23.854179] ? vma_interval_tree_remove+0xc75/0xec0 [ 23.854651] kasan_report+0xbe/0xf0 [ 23.855021] ? vma_interval_tree_remove+0xc75/0xec0 [ 23.855513] vma_interval_tree_remove+0xc75/0xec0 [ 23.855982] vma_prepare+0xc54/0x11a0 [ 23.856350] __split_vma+0x5af/0x950 [ 23.856717] ? __pfx___split_vma+0x10/0x10 [ 23.857128] ? find_held_lock+0x2c/0x110 [ 23.857533] do_vmi_align_munmap+0x2ba/0x11f0 [ 23.857967] ? lock_is_held_type+0x9f/0x120 [ 23.858383] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 23.858860] ? mtree_range_walk+0x632/0x900 [ 23.859285] ? mas_walk+0x5c7/0x7c0 [ 23.859679] do_vmi_munmap+0x1f1/0x2b0 [ 23.860069] mmap_region+0x1f9/0x2660 [ 23.860358] ? vm_mmap_pgoff+0x15c/0x3a0 [ 23.860649] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 23.861049] ? __pfx_lock_acquire+0x10/0x10 [ 23.861353] ? __pfx_mmap_region+0x10/0x10 [ 23.861649] ? security_mmap_addr+0x7d/0xa0 [ 23.861947] ? get_unmapped_area+0x1f5/0x3f0 [ 23.862259] do_mmap+0x854/0xf00 [ 23.862507] vm_mmap_pgoff+0x1a6/0x3a0 [ 23.862790] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 23.863115] ksys_mmap_pgoff+0x3af/0x500 [ 23.863403] do_syscall_64+0x3f/0x90 [ 23.863698] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 23.864062] RIP: 0033:0x7fe309568d82 [ 23.864318] 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 [ 23.865520] RSP: 002b:00007ffdb23c96c8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 23.866026] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fe309568d82 [ 23.866506] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007fe3089a2000 [ 23.866982] RBP: 00007fe3089a2000 R08: 0000000000000009 R09: 0000000000001000 [ 23.867479] R10: 0000000000000812 R11: 0000000000000206 R12: 0000560687809f60 [ 23.867960] R13: 00007ffdb23c96e0 R14: 00007ffdb23c9710 R15: 00007ffdb23c9a70 [ 23.868445] [ 23.868612] [ 23.868733] Allocated by task 206: [ 23.868977] kasan_save_stack+0x22/0x50 [ 23.869265] kasan_set_track+0x25/0x30 [ 23.869541] __kasan_slab_alloc+0x59/0x70 [ 23.869832] kmem_cache_alloc+0x16b/0x370 [ 23.870120] vm_area_dup+0x20/0x160 [ 23.870376] __split_vma+0x170/0x950 [ 23.870638] split_vma+0xc6/0x110 [ 23.870888] mprotect_fixup+0x8d2/0xb30 [ 23.871173] do_mprotect_pkey+0x87e/0xd40 [ 23.871474] __x64_sys_mprotect+0x78/0xc0 [ 23.871773] do_syscall_64+0x3f/0x90 [ 23.872041] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 23.872410] [ 23.872530] Freed by task 19: [ 23.872747] kasan_save_stack+0x22/0x50 [ 23.873027] kasan_set_track+0x25/0x30 [ 23.873303] kasan_save_free_info+0x2b/0x50 [ 23.873605] __kasan_slab_free+0x10a/0x190 [ 23.873907] kmem_cache_free+0x10d/0x4d0 [ 23.874192] rcu_core+0x8c8/0x2860 [ 23.874445] __do_softirq+0x1b7/0x7d4 [ 23.874716] [ 23.874836] Last potentially related work creation: [ 23.875163] kasan_save_stack+0x22/0x50 [ 23.875447] __kasan_record_aux_stack+0x8e/0xa0 [ 23.875772] __call_rcu_common.constprop.0+0x6a/0xb90 [ 23.876133] remove_vma+0x139/0x170 [ 23.876385] do_vmi_align_munmap+0xd4a/0x11f0 [ 23.876702] do_vmi_munmap+0x1f1/0x2b0 [ 23.876971] __vm_munmap+0x138/0x3a0 [ 23.877231] __x64_sys_munmap+0x59/0x80 [ 23.877512] do_syscall_64+0x3f/0x90 [ 23.877779] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 23.878140] [ 23.878261] The buggy address belongs to the object at ffff88801aab7e80 [ 23.878261] which belongs to the cache vm_area_struct of size 168 [ 23.879092] The buggy address is located 88 bytes inside of [ 23.879092] freed 168-byte region [ffff88801aab7e80, ffff88801aab7f28) [ 23.879915] [ 23.880035] The buggy address belongs to the physical page: [ 23.880408] page:00000000b585943d refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1aab7 [ 23.881020] memcg:ffff88801aab8001 [ 23.881258] flags: 0x100000000000200(slab|node=0|zone=1) [ 23.881625] page_type: 0xffffffff() [ 23.881880] raw: 0100000000000200 ffff8880087a0c80 dead000000000122 0000000000000000 [ 23.882415] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff88801aab8001 [ 23.882929] page dumped because: kasan: bad access detected [ 23.883305] [ 23.883424] Memory state around the buggy address: [ 23.883757] ffff88801aab7d80: fc fc fc 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.884245] ffff88801aab7e00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 23.884733] >ffff88801aab7e80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.885218] ^ [ 23.885632] ffff88801aab7f00: fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc [ 23.886113] ffff88801aab7f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.886594] ================================================================== [ 23.887160] Disabling lock debugging due to kernel taint Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 25.824331] BUG: Bad rss-counter state mm:000000002caf4250 type:MM_FILEPAGES val:33 [ 25.825486] BUG: Bad rss-counter state mm:000000002caf4250 type:MM_ANONPAGES val:22 [ 26.210829] BUG: Bad rss-counter state mm:00000000dcc230d3 type:MM_FILEPAGES val:33 [ 26.212094] BUG: Bad rss-counter state mm:00000000dcc230d3 type:MM_ANONPAGES val:22 Warning: Permanently added '[localhost]:19700' (ECDSA) to the list of known hosts. [ 26.302145] general protection fault, probably for non-canonical address 0xe0837c0120000005: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 26.303551] KASAN: maybe wild-memory-access in range [0x041c000900000028-0x041c00090000002f] [ 26.304548] CPU: 1 PID: 237 Comm: sshd Tainted: G B 6.4.0-rc7-next-20230620 #1 [ 26.305575] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 26.306543] RIP: 0010:vma_interval_tree_insert+0x114/0x400 [ 26.307396] Code: fa 48 c1 ea 03 80 3c 2a 00 0f 85 52 02 00 00 49 8b 17 48 85 d2 74 7f 48 89 d3 e8 e7 9b dd ff 48 8d 7b 18 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 23 02 00 00 4c 8b 7b 18 4c 89 e6 4c 89 ff e8 d3 [ 26.309545] RSP: 0018:ffff88800f64f8a8 EFLAGS: 00010216 [ 26.310193] RAX: 0083800120000005 RBX: 041c000900000013 RCX: 0000000000000000 [ 26.311041] RDX: ffff888018e31b40 RSI: ffffffff816e6c79 RDI: 041c00090000002b [ 26.311905] RBP: dffffc0000000000 R08: 0000000000000006 R09: 0000000000000002 [ 26.312751] R10: 0000000000000000 R11: 00000000000b6a61 R12: 0000000000000004 [ 26.313614] R13: 0000000000000002 R14: ffff88800f624910 R15: ffff88801aab7660 [ 26.314472] FS: 00007f7af27cf900(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 26.315430] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.316153] CR2: 00007f7af27a2000 CR3: 000000001be8a000 CR4: 0000000000350ee0 [ 26.317006] Call Trace: [ 26.317324] [ 26.317608] ? die_addr+0x3c/0xa0 [ 26.318053] ? exc_general_protection+0x125/0x220 [ 26.318677] ? asm_exc_general_protection+0x26/0x30 [ 26.319334] ? vma_interval_tree_insert+0x109/0x400 [ 26.319959] ? vma_interval_tree_insert+0x114/0x400 [ 26.320583] ? vma_interval_tree_insert+0x109/0x400 [ 26.321211] vma_prepare+0xa1a/0x11a0 [ 26.321688] __split_vma+0x5af/0x950 [ 26.322171] ? __pfx___split_vma+0x10/0x10 [ 26.322698] ? lock_acquire+0x434/0x4c0 [ 26.323194] do_vmi_align_munmap+0x361/0x11f0 [ 26.323782] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 26.324390] ? mtree_range_walk+0x632/0x900 [ 26.324939] ? mas_walk+0x5c7/0x7c0 [ 26.325410] do_vmi_munmap+0x1f1/0x2b0 [ 26.325901] mmap_region+0x1f9/0x2660 [ 26.326380] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 26.327082] ? __pfx_lock_acquire+0x10/0x10 [ 26.327615] ? __pfx_mmap_region+0x10/0x10 [ 26.328148] ? security_mmap_addr+0x7d/0xa0 [ 26.328688] ? get_unmapped_area+0x1f5/0x3f0 [ 26.329249] do_mmap+0x854/0xf00 [ 26.329690] vm_mmap_pgoff+0x1a6/0x3a0 [ 26.330196] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 26.330763] ksys_mmap_pgoff+0x3af/0x500 [ 26.331272] do_syscall_64+0x3f/0x90 [ 26.331772] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 26.332424] RIP: 0033:0x7f7af3361d82 [ 26.332900] 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 [ 26.335059] RSP: 002b:00007ffcbe8758d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 26.335970] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f7af3361d82 [ 26.336832] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f7af279b000 [ 26.337669] RBP: 00007f7af279b000 R08: 0000000000000009 R09: 0000000000001000 [ 26.338513] R10: 0000000000000812 R11: 0000000000000206 R12: 0000556b31a24d90 [ 26.339354] R13: 00007ffcbe8758f0 R14: 00007ffcbe875920 R15: 00007ffcbe875c80 [ 26.340212] [ 26.340500] Modules linked in: [ 26.340951] ---[ end trace 0000000000000000 ]--- [ 26.341519] RIP: 0010:vma_interval_tree_insert+0x114/0x400 [ 26.342228] Code: fa 48 c1 ea 03 80 3c 2a 00 0f 85 52 02 00 00 49 8b 17 48 85 d2 74 7f 48 89 d3 e8 e7 9b dd ff 48 8d 7b 18 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 23 02 00 00 4c 8b 7b 18 4c 89 e6 4c 89 ff e8 d3 [ 26.344500] RSP: 0018:ffff88800f64f8a8 EFLAGS: 00010216 [ 26.345370] RAX: 0083800120000005 RBX: 041c000900000013 RCX: 0000000000000000 [ 26.346340] RDX: ffff888018e31b40 RSI: ffffffff816e6c79 RDI: 041c00090000002b [ 26.347317] RBP: dffffc0000000000 R08: 0000000000000006 R09: 0000000000000002 [ 26.348255] R10: 0000000000000000 R11: 00000000000b6a61 R12: 0000000000000004 [ 26.349127] R13: 0000000000000002 R14: ffff88800f624910 R15: ffff88801aab7660 [ 26.349994] FS: 00007f7af27cf900(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 26.350966] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.351694] CR2: 00007f7af27a2000 CR3: 000000001be8a000 CR4: 0000000000350ee0 VM DIAGNOSIS: 03:49:43 Registers: info registers vcpu 0 RAX=ffffffff863b92d1 RBX=0000000000000001 RCX=ffffffff863b92cc RDX=0000000000000002 RSI=0000000000000001 RDI=ffffffff85fa8d78 RBP=ffff88800fce7570 RSP=ffff88800fce74a8 R8 =ffffffff863b9296 R9 =ffff88800fce7558 R10=0000000000038001 R11=000000000008b8ed R12=ffff88800fce7578 R13=ffff88800fce7560 R14=ffff88800fce7559 R15=ffff88800fce7518 RIP=ffffffff81130a72 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 00007efc14a11900 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=00007efc14fc6650 CR3=000000001605c000 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=000000000000000000000000000000ff XMM02=000000000000000000000000000000ff XMM03=5320444f4854454d5f54505952434e45 XMM04=40404040404040404040404040404040 XMM05=5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a XMM06=20202020202020202020202020202020 XMM07=00000000000000000000000000000000 XMM08=ffbc64ffffbc44ffffbc34ffffbc9f00 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=00007fc1751446f0 CR3=0000000010316000 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=ca2d4eb722581b883446fbca0a94827f XMM02=2c67c8bc2e329bc3000000000011a458 XMM03=fb795ef6d6577056000000000011d050 XMM04=a02bc5c704cb4e5500000000000ae988 XMM05=dfcdbad4f1609c370000000000130958 XMM06=f0cfaf3451b05d2d000000000012fb30 XMM07=e042d86d42eb936e000000000011dd80 XMM08=2e9f51209f8d0b51000000000011a4b8 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000