BUG: Bad rss-counter state mm:00000000d82fe932 type:MM_FILEPAGES val:33
BUG: Bad rss-counter state mm:00000000d82fe932 type:MM_ANONPAGES val:22
==================================================================
BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0
Read of size 8 at addr ffff888019a3e5c8 by task sshd/219
CPU: 0 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: 0033:0x7faec3edad82
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:00007ffca4eadf48 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007faec3edad82
RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007faec3314000
RBP: 00007faec3314000 R08: 0000000000000009 R09: 0000000000001000
R10: 0000000000000812 R11: 0000000000000206 R12: 0000560ed6d38ec0
R13: 00007ffca4eadf60 R14: 00007ffca4eadf90 R15: 00007ffca4eae2f0
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 ffff888019a3e570
which belongs to the cache vm_area_struct of size 168
The buggy address is located 88 bytes inside of
freed 168-byte region [ffff888019a3e570, ffff888019a3e618)
The buggy address belongs to the physical page:
page:00000000d276290d refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x19a3e
memcg:ffff888010087701
flags: 0x100000000000200(slab|node=0|zone=1)
page_type: 0xffffffff()
raw: 0100000000000200 ffff8880087a0c80 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000110011 00000001ffffffff ffff888010087701
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff888019a3e480: fc 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff888019a3e500: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fa fb
>ffff888019a3e580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888019a3e600: fb fb fb fc fc fc fc fc fc fc fc fa fb fb fb fb
ffff888019a3e680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
BUG: Bad rss-counter state mm:00000000e0d3cc84 type:MM_FILEPAGES val:33
BUG: Bad rss-counter state mm:00000000e0d3cc84 type:MM_ANONPAGES val:22
BUG: Bad rss-counter state mm:000000009e0fa3e9 type:MM_FILEPAGES val:33
BUG: Bad rss-counter state mm:000000009e0fa3e9 type:MM_ANONPAGES val:22
general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 238 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:__rb_insert_augmented+0x78/0x8b0
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
RSP: 0018:ffff88800f9c78a8 EFLAGS: 00010212
RAX: ffff888018bb4b28 RBX: ffff88800f1f9868 RCX: 1ffff11001e3f30d
RDX: 0000000000000001 RSI: ffff888018bb4b28 RDI: ffff88800f1f9868
RBP: ffff888019a484c8 R08: 0000000000000008 R09: 0000000000000000
R10: 0000000000000000 R11: 00000000000b6a61 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88800f9c7988 R15: ffffffff816e6340
FS: 00007f98ce304900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f98ce2cb000 CR3: 0000000019926000 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: 0033:0x7f98cee96d82
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:00007ffd50a68e08 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f98cee96d82
RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f98ce2c6000
RBP: 00007f98ce2c6000 R08: 0000000000000008 R09: 0000000000001000
R10: 0000000000000812 R11: 0000000000000206 R12: 000055818e7ae630
R13: 00007ffd50a68e20 R14: 00007ffd50a68e50 R15: 00007ffd50a691b0
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__rb_insert_augmented+0x78/0x8b0
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
RSP: 0018:ffff88800f9c78a8 EFLAGS: 00010212
RAX: ffff888018bb4b28 RBX: ffff88800f1f9868 RCX: 1ffff11001e3f30d
RDX: 0000000000000001 RSI: ffff888018bb4b28 RDI: ffff88800f1f9868
RBP: ffff888019a484c8 R08: 0000000000000008 R09: 0000000000000000
R10: 0000000000000000 R11: 00000000000b6a61 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88800f9c7988 R15: ffffffff816e6340
FS: 00007f98ce304900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f98ce2cb000 CR3: 0000000019926000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 48 c1 ea 03 shr $0x3,%rdx
4: 42 80 3c 2a 00 cmpb $0x0,(%rdx,%r13,1)
9: 0f 85 65 05 00 00 jne 0x574
f: 4c 8b 65 00 mov 0x0(%rbp),%r12
13: 41 f6 c4 01 test $0x1,%r12b
17: 0f 85 18 05 00 00 jne 0x535
1d: 4d 8d 44 24 08 lea 0x8(%r12),%r8
22: 4c 89 c2 mov %r8,%rdx
25: 48 c1 ea 03 shr $0x3,%rdx
* 29: 42 80 3c 2a 00 cmpb $0x0,(%rdx,%r13,1) <-- trapping instruction
2e: 0f 85 55 05 00 00 jne 0x589
34: 4d 8b 74 24 08 mov 0x8(%r12),%r14
39: 49 39 ee cmp %rbp,%r14
3c: 0f .byte 0xf
3d: 84 .byte 0x84
3e: 77 .byte 0x77