[ 44.077407] BUG: Bad rss-counter state mm:00000000bbf61c6f type:MM_FILEPAGES val:33
[ 44.077991] BUG: Bad rss-counter state mm:00000000bbf61c6f type:MM_ANONPAGES val:22
[[0;32m OK [0m] Started [0;1;39mSerial Getty on ttyS0[0m.
[[0;32m OK [0m] Reached target [0;1;39mLogin Prompts[0m.
[[0;32m OK [0m] Reached target [0;1;39mMulti-User System[0m.
[[0;32m OK [0m] Reached target [0;1;39mGraphical Interface[0m.
Starting [0;1;39mUpdate UTMP about System Runlevel Changes[0m...
[ 44.186804] ==================================================================
[ 44.187314] BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0
[ 44.187829] Read of size 8 at addr ffff888019cb3880 by task sshd/219
[ 44.188255]
[ 44.188377] CPU: 0 PID: 219 Comm: sshd Not tainted 6.4.0-rc7-next-20230619 #1
[ 44.188855] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 44.189396] Call Trace:
[ 44.189576]
[ 44.189731] dump_stack_lvl+0x91/0xf0
[ 44.189999] print_report+0xcc/0x620
[ 44.190267] ? __virt_addr_valid+0x102/0x340
[ 44.190573] ? vma_interval_tree_remove+0xc75/0xec0
[ 44.190915] ? vma_interval_tree_remove+0xc75/0xec0
[ 44.191256] kasan_report+0xbe/0xf0
[ 44.191519] ? vma_interval_tree_remove+0xc75/0xec0
[ 44.191954] vma_interval_tree_remove+0xc75/0xec0
[ 44.192289] vma_prepare+0xc54/0x11a0
[ 44.192550] __split_vma+0x5af/0x950
[ 44.192815] ? __pfx___split_vma+0x10/0x10
[ 44.193102] ? find_held_lock+0x2c/0x110
[ 44.193403] do_vmi_align_munmap+0x2ba/0x11f0
[ 44.193715] ? lock_is_held_type+0x9f/0x120
[ 44.194015] ? __pfx_do_vmi_align_munmap+0x10/0x10
[ 44.194352] ? mtree_range_walk+0x632/0x900
[ 44.194657] ? mas_walk+0x5c7/0x7c0
[ 44.194916] do_vmi_munmap+0x1f1/0x2b0
[ 44.195191] mmap_region+0x1f9/0x2660
[ 44.195459] ? vm_mmap_pgoff+0x15c/0x3a0
[ 44.195743] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[ 44.196177] ? __pfx_lock_acquire+0x10/0x10
[ 44.196488] ? __pfx_mmap_region+0x10/0x10
[ 44.196797] ? security_mmap_addr+0x7d/0xa0
[ 44.197114] ? get_unmapped_area+0x1f5/0x3f0
[ 44.197449] do_mmap+0x854/0xf00
[ 44.197702] vm_mmap_pgoff+0x1a6/0x3a0
[ 44.197994] ? __pfx_vm_mmap_pgoff+0x10/0x10
[ 44.198335] ksys_mmap_pgoff+0x3af/0x500
[ 44.198639] do_syscall_64+0x3f/0x90
[ 44.198917] entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[ 44.199298] RIP: 0033:0x7f8d17dc9d82
[ 44.199570] 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
[ 44.200833] RSP: 002b:00007ffca0996bc8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[ 44.201367] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f8d17dc9d82
[ 44.201860] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f8d17203000
[ 44.202361] RBP: 00007f8d17203000 R08: 0000000000000009 R09: 0000000000001000
[ 44.202863] R10: 0000000000000812 R11: 0000000000000206 R12: 00005633bc012ec0
[ 44.203375] R13: 00007ffca0996be0 R14: 00007ffca0996c10 R15: 00007ffca0996f70
[ 44.203885]
[ 44.204055]
[ 44.204180] Allocated by task 204:
[ 44.204435] kasan_save_stack+0x22/0x50
[ 44.204729] kasan_set_track+0x25/0x30
[ 44.205021] __kasan_slab_alloc+0x59/0x70
[ 44.205343] kmem_cache_alloc+0x16b/0x370
[ 44.205647] vm_area_dup+0x20/0x160
[ 44.205912] __split_vma+0x170/0x950
[ 44.206188] split_vma+0xc6/0x110
[ 44.206443] mprotect_fixup+0x8d2/0xb30
[ 44.206737] do_mprotect_pkey+0x87e/0xd40
[ 44.207040] __x64_sys_mprotect+0x78/0xc0
[ 44.207344] do_syscall_64+0x3f/0x90
[ 44.207623] entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[ 44.207990]
[ 44.208116] Freed by task 204:
[ 44.208347] kasan_save_stack+0x22/0x50
[ 44.208645] kasan_set_track+0x25/0x30
[ 44.208937] kasan_save_free_info+0x2b/0x50
[ 44.209247] __kasan_slab_free+0x10a/0x190
[ 44.209562] kmem_cache_free+0x10d/0x4d0
[ 44.209856] rcu_core+0x8c8/0x2860
[ 44.210109] __do_softirq+0x1b7/0x7d4
[ 44.210391]
[ 44.210517] Last potentially related work creation:
[ 44.210867] kasan_save_stack+0x22/0x50
[ 44.211164] __kasan_record_aux_stack+0x8e/0xa0
[ 44.211499] __call_rcu_common.constprop.0+0x6a/0xb90
[ 44.211878] remove_vma+0x139/0x170
[ 44.212143] do_vmi_align_munmap+0xd4a/0x11f0
[ 44.212466] do_vmi_munmap+0x1f1/0x2b0
[ 44.212752] __vm_munmap+0x138/0x3a0
[ 44.213027] __x64_sys_munmap+0x59/0x80
[ 44.213331] do_syscall_64+0x3f/0x90
[ 44.213603] entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[ 44.213981]
[ 44.214107] The buggy address belongs to the object at ffff888019cb3828
[ 44.214107] which belongs to the cache vm_area_struct of size 168
[ 44.214973] The buggy address is located 88 bytes inside of
[ 44.214973] freed 168-byte region [ffff888019cb3828, ffff888019cb38d0)
[ 44.215801]
[ 44.215923] The buggy address belongs to the physical page:
[ 44.216294] page:000000001b2cc682 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x19cb3
[ 44.216888] memcg:ffff888019ca2201
[ 44.217122] flags: 0x100000000000200(slab|node=0|zone=1)
[ 44.217485] page_type: 0xffffffff()
[ 44.217730] raw: 0100000000000200 ffff88800879fc80 dead000000000122 0000000000000000
[ 44.218247] raw: 0000000000000000 0000000000110011 00000001ffffffff ffff888019ca2201
[ 44.218752] page dumped because: kasan: bad access detected
[ 44.219124]
[ 44.219244] Memory state around the buggy address:
[ 44.219563] ffff888019cb3780: 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc
[ 44.220036] ffff888019cb3800: fc fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb
[ 44.220503] >ffff888019cb3880: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc
[ 44.220971] ^
[ 44.221199] ffff888019cb3900: fc fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 44.221675] ffff888019cb3980: fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc 00
[ 44.222143] ==================================================================
[ 44.222660] Disabling lock debugging due to kernel taint
[[0;32m OK [0m] Finished [0;1;39mUpdate UTMP about System Runlevel Changes[0m.
Debian GNU/Linux 11 syzkaller ttyS0
syzkaller login: [ 46.288970] BUG: Bad rss-counter state mm:00000000794af431 type:MM_FILEPAGES val:33
[ 46.290001] BUG: Bad rss-counter state mm:00000000794af431 type:MM_ANONPAGES val:22
[ 46.817606] BUG: Bad rss-counter state mm:00000000cd55ee49 type:MM_FILEPAGES val:33
[ 46.818764] BUG: Bad rss-counter state mm:00000000cd55ee49 type:MM_ANONPAGES val:22
Warning: Permanently added '[localhost]:30515' (ECDSA) to the list of known hosts.
[ 46.856804] general protection fault, probably for non-canonical address 0xe0f91c010000001c: 0000 [#1] PREEMPT SMP KASAN NOPTI
[ 46.858479] KASAN: maybe wild-memory-access in range [0x07c90008000000e0-0x07c90008000000e7]
[ 46.859664] CPU: 1 PID: 236 Comm: sshd Tainted: G B 6.4.0-rc7-next-20230619 #1
[ 46.860988] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 46.861975] RIP: 0010:vma_interval_tree_insert+0x114/0x400
[ 46.862662] 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 9c 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
[ 46.864817] RSP: 0018:ffff88800fe578a8 EFLAGS: 00010213
[ 46.865477] RAX: 00f920010000001c RBX: 07c90008000000cc RCX: 0000000000000000
[ 46.866349] RDX: ffff88800d8c8000 RSI: ffffffff816e6af9 RDI: 07c90008000000e4
[ 46.867216] RBP: dffffc0000000000 R08: 0000000000000006 R09: 0000000000000002
[ 46.868072] R10: 0000000000000000 R11: 00000000000b6996 R12: 0000000000000004
[ 46.868926] R13: 0000000000000002 R14: ffff888018db09f8 R15: ffff888019cb3008
[ 46.869811] FS: 00007faa2db02900(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[ 46.870783] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 46.871491] CR2: 00007faa2dad5000 CR3: 0000000019e3e000 CR4: 0000000000350ee0
[ 46.872354] Call Trace:
[ 46.872674]
[ 46.872962] ? die_addr+0x3c/0xa0
[ 46.873413] ? exc_general_protection+0x125/0x220
[ 46.874034] ? asm_exc_general_protection+0x26/0x30
[ 46.874672] ? vma_interval_tree_insert+0x109/0x400
[ 46.875286] ? vma_interval_tree_insert+0x114/0x400
[ 46.875914] ? vma_interval_tree_insert+0x109/0x400
[ 46.876529] vma_prepare+0xa1a/0x11a0
[ 46.877003] __split_vma+0x5af/0x950
[ 46.877493] ? __pfx___split_vma+0x10/0x10
[ 46.878026] ? lock_acquire+0x434/0x4c0
[ 46.878531] do_vmi_align_munmap+0x361/0x11f0
[ 46.879111] ? __pfx_do_vmi_align_munmap+0x10/0x10
[ 46.879727] ? mtree_range_walk+0x632/0x900
[ 46.880283] ? mas_walk+0x5c7/0x7c0
[ 46.880768] do_vmi_munmap+0x1f1/0x2b0
[ 46.881267] mmap_region+0x1f9/0x2660
[ 46.881764] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[ 46.882487] ? __pfx_lock_acquire+0x10/0x10
[ 46.883026] ? __pfx_mmap_region+0x10/0x10
[ 46.883563] ? security_mmap_addr+0x7d/0xa0
[ 46.884100] ? get_unmapped_area+0x1f5/0x3f0
[ 46.884653] do_mmap+0x854/0xf00
[ 46.885091] vm_mmap_pgoff+0x1a6/0x3a0
[ 46.885621] ? __pfx_vm_mmap_pgoff+0x10/0x10
[ 46.886206] ksys_mmap_pgoff+0x3af/0x500
[ 46.886711] do_syscall_64+0x3f/0x90
[ 46.887187] entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[ 46.887827] RIP: 0033:0x7faa2e694d82
[ 46.888282] 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
[ 46.890413] RSP: 002b:00007fff09561368 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[ 46.891316] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007faa2e694d82
[ 46.892157] RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007faa2dace000
[ 46.892999] RBP: 00007faa2dace000 R08: 0000000000000009 R09: 0000000000001000
[ 46.893856] R10: 0000000000000812 R11: 0000000000000206 R12: 000055aa94649ec0
[ 46.894734] R13: 00007fff09561380 R14: 00007fff095613b0 R15: 00007fff09561710
[ 46.895601]
[ 46.895895] Modules linked in:
[ 46.896446] ---[ end trace 0000000000000000 ]---
[ 46.897024] RIP: 0010:vma_interval_tree_insert+0x114/0x400
[ 46.897883] 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 9c 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
[ 46.900210] RSP: 0018:ffff88800fe578a8 EFLAGS: 00010213
[ 46.900988] RAX: 00f920010000001c RBX: 07c90008000000cc RCX: 0000000000000000
[ 46.902118] RDX: ffff88800d8c8000 RSI: ffffffff816e6af9 RDI: 07c90008000000e4
[ 46.903078] RBP: dffffc0000000000 R08: 0000000000000006 R09: 0000000000000002
[ 46.903945] R10: 0000000000000000 R11: 00000000000b6996 R12: 0000000000000004
[ 46.904828] R13: 0000000000000002 R14: ffff888018db09f8 R15: ffff888019cb3008
[ 46.905764] FS: 00007faa2db02900(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[ 46.906762] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 46.907506] CR2: 00007faa2dad5000 CR3: 0000000019e3e000 CR4: 0000000000350ee0
VM DIAGNOSIS:
11:26:56 Registers:
info registers vcpu 0
RAX=ffffffff86137543 RBX=0000000000000001 RCX=ffffffff8613753e RDX=0000000000000000
RSI=1ffffffff0c26ea8 RDI=ffffffff85dfc9fc RBP=ffff8880195078a0 RSP=ffff8880195077d8
R8 =ffffffff86137508 R9 =ffff888019507888 R10=0000000000038001 R11=0000000000020d8a
R12=ffff8880195078a8 R13=ffff888019507890 R14=ffff888019507889 R15=ffff888019507848
RIP=ffffffff81130a5b RFL=00000212 [----A--] 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 00007f163f597900 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=00007f163fb4e618 CR3=000000001bd7a000 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=ffff88806cf35000 RBX=0000000000000001 RCX=ffffffff8450c50e RDX=ffffed100d9e6a01
RSI=0000000000000004 RDI=ffffffff812889a5 RBP=dffffc0000000000 RSP=ffff888008e27e70
R8 =0000000000000000 R9 =ffffed100d9e6a00 R10=ffff88806cf35003 R11=ffff888008c58400
R12=ffffffff85d3bed0 R13=1ffff110011c4fd3 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 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=00007faf16bb5000 CR3=000000000c79a000 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=a4792efc5c14f889844d780de472eaed
XMM02=ec2efd57dc4c00df000000000011bc90 XMM03=b53abce7c8e8a855000000000011bd60
XMM04=a2291b43df5466c400000000000ae988 XMM05=751b9502027dc0b90000000000132708
XMM06=52726aabda624f170000000000131178 XMM07=e042d86d42eb936e000000000011e7b8
XMM08=b53abce7c8e8a855000000000011bd60 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000