BUG: Bad rss-counter state mm:0000000089cac952 type:MM_FILEPAGES val:33
BUG: Bad rss-counter state mm:0000000089cac952 type:MM_ANONPAGES val:22
==================================================================
BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0
Read of size 8 at addr ffff888019aeed08 by task sshd/219
CPU: 1 PID: 219 Comm: sshd Not tainted 6.4.0-rc7-next-20230620 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0x91/0xf0
print_report+0xcc/0x620
kasan_report+0xbe/0xf0
vma_interval_tree_remove+0xc75/0xec0
vma_prepare+0xc54/0x11a0
__split_vma+0x5af/0x950
do_vmi_align_munmap+0x2ba/0x11f0
do_vmi_munmap+0x1f1/0x2b0
mmap_region+0x1f9/0x2660
do_mmap+0x854/0xf00
vm_mmap_pgoff+0x1a6/0x3a0
ksys_mmap_pgoff+0x3af/0x500
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7fe456af2d82
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
RSP: 002b:00007ffd461a56d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fe456af2d82
RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007fe455f2c000
RBP: 00007fe455f2c000 R08: 0000000000000009 R09: 0000000000001000
R10: 0000000000000812 R11: 0000000000000206 R12: 000056064bf4eec0
R13: 00007ffd461a56f0 R14: 00007ffd461a5720 R15: 00007ffd461a5a80
Allocated by task 206:
kasan_save_stack+0x22/0x50
kasan_set_track+0x25/0x30
__kasan_slab_alloc+0x59/0x70
kmem_cache_alloc+0x16b/0x370
vm_area_dup+0x20/0x160
__split_vma+0x170/0x950
split_vma+0xc6/0x110
mprotect_fixup+0x8d2/0xb30
do_mprotect_pkey+0x87e/0xd40
__x64_sys_mprotect+0x78/0xc0
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
Freed by task 206:
kasan_save_stack+0x22/0x50
kasan_set_track+0x25/0x30
kasan_save_free_info+0x2b/0x50
__kasan_slab_free+0x10a/0x190
kmem_cache_free+0x10d/0x4d0
rcu_core+0x8c8/0x2860
__do_softirq+0x1b7/0x7d4
Last potentially related work creation:
kasan_save_stack+0x22/0x50
__kasan_record_aux_stack+0x8e/0xa0
__call_rcu_common.constprop.0+0x6a/0xb90
remove_vma+0x139/0x170
do_vmi_align_munmap+0xd4a/0x11f0
do_vmi_munmap+0x1f1/0x2b0
__vm_munmap+0x138/0x3a0
__x64_sys_munmap+0x59/0x80
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
The buggy address belongs to the object at ffff888019aeecb0
which belongs to the cache vm_area_struct of size 168
The buggy address is located 88 bytes inside of
freed 168-byte region [ffff888019aeecb0, ffff888019aeed58)
The buggy address belongs to the physical page:
page:0000000074d65789 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x19aee
memcg:ffff888019aa5f01
flags: 0x100000000000200(slab|node=0|zone=1)
page_type: 0xffffffff()
raw: 0100000000000200 ffff8880087a0c80 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000110011 00000001ffffffff ffff888019aa5f01
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff888019aeec00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc
ffff888019aeec80: fc fc fc fc fc fc fa fb fb fb fb fb fb fb fb fb
>ffff888019aeed00: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc
^
ffff888019aeed80: fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb fb
ffff888019aeee00: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
==================================================================
BUG: Bad rss-counter state mm:0000000043e4acf5 type:MM_FILEPAGES val:33
BUG: Bad rss-counter state mm:0000000043e4acf5 type:MM_ANONPAGES val:22
BUG: Bad rss-counter state mm:000000004eeee93c type:MM_FILEPAGES val:33
BUG: Bad rss-counter state mm:000000004eeee93c type:MM_ANONPAGES val:22
general protection fault, probably for non-canonical address 0xe0db1c23e000001d: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: maybe wild-memory-access in range [0x06d9011f000000e8-0x06d9011f000000ef]
CPU: 0 PID: 237 Comm: sshd Tainted: G B 6.4.0-rc7-next-20230620 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:vma_interval_tree_insert+0x114/0x400
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
RSP: 0018:ffff888009d478a8 EFLAGS: 00010217
RAX: 00db2023e000001d RBX: 06d9011f000000d5 RCX: 0000000000000000
RDX: ffff888016198000 RSI: ffffffff816e6c79 RDI: 06d9011f000000ed
RBP: dffffc0000000000 R08: 0000000000000006 R09: 0000000000000002
R10: 0000000000000000 R11: 00000000000b6a61 R12: 0000000000000004
R13: 0000000000000002 R14: ffff88801c992d98 R15: ffff88800db69cb8
FS: 00007f212852d900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f21284f9000 CR3: 000000000e128000 CR4: 0000000000350ef0
Call Trace:
vma_prepare+0xa1a/0x11a0
__split_vma+0x5af/0x950
do_vmi_align_munmap+0x361/0x11f0
do_vmi_munmap+0x1f1/0x2b0
mmap_region+0x1f9/0x2660
do_mmap+0x854/0xf00
vm_mmap_pgoff+0x1a6/0x3a0
ksys_mmap_pgoff+0x3af/0x500
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f21290bfd82
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
RSP: 002b:00007ffde8961598 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f21290bfd82
RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f21284f4000
RBP: 00007f21284f4000 R08: 0000000000000009 R09: 0000000000001000
R10: 0000000000000812 R11: 0000000000000206 R12: 00005603cd5473a0
R13: 00007ffde89615b0 R14: 00007ffde89615e0 R15: 00007ffde8961940
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:vma_interval_tree_insert+0x114/0x400
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
RSP: 0018:ffff888009d478a8 EFLAGS: 00010217
RAX: 00db2023e000001d RBX: 06d9011f000000d5 RCX: 0000000000000000
RDX: ffff888016198000 RSI: ffffffff816e6c79 RDI: 06d9011f000000ed
RBP: dffffc0000000000 R08: 0000000000000006 R09: 0000000000000002
R10: 0000000000000000 R11: 00000000000b6a61 R12: 0000000000000004
R13: 0000000000000002 R14: ffff88801c992d98 R15: ffff88800db69cb8
FS: 00007f212852d900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f21284f9000 CR3: 000000000e128000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess):
0: fa cli
1: 48 c1 ea 03 shr $0x3,%rdx
5: 80 3c 2a 00 cmpb $0x0,(%rdx,%rbp,1)
9: 0f 85 52 02 00 00 jne 0x261
f: 49 8b 17 mov (%r15),%rdx
12: 48 85 d2 test %rdx,%rdx
15: 74 7f je 0x96
17: 48 89 d3 mov %rdx,%rbx
1a: e8 e7 9b dd ff callq 0xffdd9c06
1f: 48 8d 7b 18 lea 0x18(%rbx),%rdi
23: 48 89 f8 mov %rdi,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1) <-- trapping instruction
2e: 0f 85 23 02 00 00 jne 0x257
34: 4c 8b 7b 18 mov 0x18(%rbx),%r15
38: 4c 89 e6 mov %r12,%rsi
3b: 4c 89 ff mov %r15,%rdi
3e: e8 .byte 0xe8
3f: d3 .byte 0xd3