BUG: Bad rss-counter state mm:00000000883b7e58 type:MM_FILEPAGES val:33
BUG: Bad rss-counter state mm:00000000883b7e58 type:MM_ANONPAGES val:22
==================================================================
BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0
Read of size 8 at addr ffff88800e127880 by task sshd/221
CPU: 1 PID: 221 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: 0033:0x7fc6c1dabd82
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:00007fffc97193b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fc6c1dabd82
RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007fc6c11e5000
RBP: 00007fc6c11e5000 R08: 0000000000000009 R09: 0000000000001000
R10: 0000000000000812 R11: 0000000000000206 R12: 000055e46d60bec0
R13: 00007fffc97193d0 R14: 00007fffc9719400 R15: 00007fffc9719760
Allocated by task 214:
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 214:
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
Second to 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 ffff88800e127828
which belongs to the cache vm_area_struct of size 168
The buggy address is located 88 bytes inside of
freed 168-byte region [ffff88800e127828, ffff88800e1278d0)
The buggy address belongs to the physical page:
page:000000000985affc refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xe127
memcg:ffff88800f2b9e01
anon flags: 0x100000000000200(slab|node=0|zone=1)
page_type: 0xffffffff()
raw: 0100000000000200 ffff8880087a0c80 ffffea00003afc40 dead00000000000d
raw: 0000000000000000 0000000000110011 00000001ffffffff ffff88800f2b9e01
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff88800e127780: 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc
ffff88800e127800: fc fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb
>ffff88800e127880: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc
^
ffff88800e127900: fc fc 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88800e127980: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc 00
==================================================================
BUG: Bad rss-counter state mm:0000000064155120 type:MM_FILEPAGES val:33
BUG: Bad rss-counter state mm:0000000064155120 type:MM_ANONPAGES val:22
BUG: Bad rss-counter state mm:00000000f32d0c0f type:MM_FILEPAGES val:33
BUG: Bad rss-counter state mm:00000000f32d0c0f type:MM_ANONPAGES val:22
general protection fault, probably for non-canonical address 0xe0ac7c268000000d: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: maybe wild-memory-access in range [0x0564013400000068-0x056401340000006f]
CPU: 1 PID: 240 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+0x9d/0x8b0
Code: 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 01 00 00 4d 85 f6 74 1c 4c 89 f2 48 c1 ea 03 <42> 80 3c 2a 00 0f 85 61 05 00 00 41 f6 06 01 0f 84 7a 04 00 00 48
RSP: 0018:ffff88801462f948 EFLAGS: 00010213
RAX: ffff88801937a388 RBX: ffff88800df07698 RCX: ffffffff844d49f9
RDX: 00ac80268000000d RSI: 0000000000000008 RDI: ffff88800cec0588
RBP: ffff8880168e0000 R08: ffff88800cec0588 R09: 0000000000000000
R10: 0000000000000003 R11: 00000000000b6a61 R12: ffff88800cec0580
R13: dffffc0000000000 R14: 056401340000006e R15: ffffffff816e6340
FS: 00007fc2a8eaf900(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005600de5a51c0 CR3: 000000000e84a000 CR4: 0000000000350ee0
Call Trace:
dup_mmap+0xc45/0x1770
copy_process+0x3e68/0x7320
kernel_clone+0xeb/0x7d0
__do_sys_clone+0xba/0x100
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7fc2a936e4bb
Code: ed 0f 85 f8 00 00 00 64 4c 8b 0c 25 10 00 00 00 45 31 c0 4d 8d 91 d0 02 00 00 31 d2 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 91 00 00 00 41 89 c5 85 c0 0f 85 9e 00 00
RSP: 002b:00007ffc975fa9c0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 000000000000c2dc RCX: 00007fc2a936e4bb
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fc2a8eaf900
R10: 00007fc2a8eafbd0 R11: 0000000000000246 R12: 0000000000000000
R13: 00005600de5b2bd0 R14: 00005600de5b5650 R15: 00007ffc975faa40
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__rb_insert_augmented+0x9d/0x8b0
Code: 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 01 00 00 4d 85 f6 74 1c 4c 89 f2 48 c1 ea 03 <42> 80 3c 2a 00 0f 85 61 05 00 00 41 f6 06 01 0f 84 7a 04 00 00 48
RSP: 0018:ffff88801462f948 EFLAGS: 00010213
RAX: ffff88801937a388 RBX: ffff88800df07698 RCX: ffffffff844d49f9
RDX: 00ac80268000000d RSI: 0000000000000008 RDI: ffff88800cec0588
RBP: ffff8880168e0000 R08: ffff88800cec0588 R09: 0000000000000000
R10: 0000000000000003 R11: 00000000000b6a61 R12: ffff88800cec0580
R13: dffffc0000000000 R14: 056401340000006e R15: ffffffff816e6340
FS: 00007fc2a8eaf900(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005600de5a51c0 CR3: 000000000e84a000 CR4: 0000000000350ee0
----------------
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 55 05 00 00 jne 0x564
f: 4d 8b 74 24 08 mov 0x8(%r12),%r14
14: 49 39 ee cmp %rbp,%r14
17: 0f 84 77 01 00 00 je 0x194
1d: 4d 85 f6 test %r14,%r14
20: 74 1c je 0x3e
22: 4c 89 f2 mov %r14,%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 61 05 00 00 jne 0x595
34: 41 f6 06 01 testb $0x1,(%r14)
38: 0f 84 7a 04 00 00 je 0x4b8
3e: 48 rex.W