BUG: Bad rss-counter state mm:0000000026e7470e type:MM_FILEPAGES val:33
BUG: Bad rss-counter state mm:0000000026e7470e type:MM_ANONPAGES val:22
==================================================================
BUG: KASAN: slab-use-after-free in vma_interval_tree_remove+0xc75/0xec0
Read of size 8 at addr ffff88800e3c0c20 by task sshd/219
CPU: 0 PID: 219 Comm: sshd Not tainted 6.4.0-rc7-next-20230619 #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: 0033:0x7f89a25e5d82
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:00007ffe65c39818 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f89a25e5d82
RDX: 0000000000000005 RSI: 0000000000001000 RDI: 00007f89a1a1f000
RBP: 00007f89a1a1f000 R08: 0000000000000009 R09: 0000000000001000
R10: 0000000000000812 R11: 0000000000000206 R12: 0000563ff8226980
R13: 00007ffe65c39830 R14: 00007ffe65c39860 R15: 00007ffe65c39bc0
Allocated by task 211:
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 19:
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
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
The buggy address belongs to the object at ffff88800e3c0bc8
which belongs to the cache vm_area_struct of size 168
The buggy address is located 88 bytes inside of
freed 168-byte region [ffff88800e3c0bc8, ffff88800e3c0c70)
The buggy address belongs to the physical page:
page:0000000052f01297 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xe3c0
memcg:ffff88800df57901
flags: 0x100000000000200(slab|node=0|zone=1)
page_type: 0xffffffff()
raw: 0100000000000200 ffff88800879fc80 ffffea000031ac80 dead000000000006
raw: 0000000000000000 0000000000110011 00000001ffffffff ffff88800df57901
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff88800e3c0b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88800e3c0b80: 00 fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb
>ffff88800e3c0c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc
^
ffff88800e3c0c80: fc fc fc fc fc fc 00 00 00 00 00 00 00 00 00 00
ffff88800e3c0d00: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc
==================================================================
BUG: Bad rss-counter state mm:00000000304c7163 type:MM_FILEPAGES val:33
BUG: Bad rss-counter state mm:00000000304c7163 type:MM_ANONPAGES val:22
BUG: Bad rss-counter state mm:000000009472a9b7 type:MM_FILEPAGES val:33
BUG: Bad rss-counter state mm:000000009472a9b7 type:MM_ANONPAGES val:22
kmemleak: Cannot insert 0xffff88801c042698 into the object search tree (overlaps existing)
CPU: 0 PID: 238 Comm: sshd Tainted: G B 6.4.0-rc7-next-20230619 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0x91/0xf0
__create_object+0x736/0xc90
kmem_cache_alloc+0x20b/0x370
vm_area_dup+0x20/0x160
dup_mmap+0x94e/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: 0033:0x7fc2506114bb
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:00007ffeb7fda290 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 000000000000acd8 RCX: 00007fc2506114bb
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fc250152900
R10: 00007fc250152bd0 R11: 0000000000000246 R12: 0000000000000000
R13: 000056168d86bba0 R14: 000056168d86e3e0 R15: 00007ffeb7fda310
kmemleak: Kernel memory leak detector disabled
kmemleak: Object 0xffff88801c042658 (size 168):
kmemleak: comm "sshd", pid 238, jiffies 4294725634
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x1
kmemleak: checksum = 0
kmemleak: backtrace:
vm_area_dup+0x20/0x160
dup_mmap+0x94e/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
kmemleak: Automatic memory scanning thread ended
general protection fault, probably for non-canonical address 0xdffffc000000000e: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077]
CPU: 1 PID: 246 Comm: sshd Tainted: G B 6.4.0-rc7-next-20230619 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:unlink_anon_vmas+0x63/0x720
Code: ea 03 80 3c 02 00 0f 85 58 06 00 00 48 8b 44 24 08 48 8b 58 60 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 8d 6b f0 48 c1 ea 03 <80> 3c 02 00 0f 85 48 06 00 00 48 8b 03 4c 8d 68 f0 48 39 1c 24 0f
RSP: 0018:ffff888016ee7888 EFLAGS: 00010212
RAX: dffffc0000000000 RBX: 0000000000000071 RCX: 0000000000000000
RDX: 000000000000000e RSI: ffffffff8176902f RDI: ffff88801c042658
RBP: 0000000000000061 R08: 0000000000000001 R09: ffffed1001dfcd29
R10: ffff88800efe694f R11: 00000000000b6996 R12: dffffc0000000000
R13: ffff88801c042740 R14: 0000000000000001 R15: ffff88801c042680
FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056168d889e48 CR3: 000000000f1e8000 CR4: 0000000000350ee0
Call Trace:
free_pgtables+0x314/0x820
exit_mmap+0x2b4/0x940
mmput+0xd5/0x390
begin_new_exec+0x10b9/0x2fe0
load_elf_binary+0x80b/0x5030
bprm_execve+0x803/0x1940
do_execveat_common+0x734/0x8e0
__x64_sys_execve+0x93/0xc0
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7fc2506116c7
Code: Unable to access opcode bytes at 0x7fc25061169d.
RSP: 002b:00007ffeb7fd9b48 EFLAGS: 00000202 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 000056168d86e200 RCX: 00007fc2506116c7
RDX: 000056168d86ce60 RSI: 00007ffeb7fd9bd0 RDI: 000056168d86e200
RBP: 00007ffeb7fd9bd0 R08: 00000000000003ff R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000202 R12: 000056168d86ce60
R13: 000056168d86cb50 R14: 000056168d86bba0 R15: 000056168d87f0b0
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:unlink_anon_vmas+0x63/0x720
Code: ea 03 80 3c 02 00 0f 85 58 06 00 00 48 8b 44 24 08 48 8b 58 60 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 8d 6b f0 48 c1 ea 03 <80> 3c 02 00 0f 85 48 06 00 00 48 8b 03 4c 8d 68 f0 48 39 1c 24 0f
RSP: 0018:ffff888016ee7888 EFLAGS: 00010212
RAX: dffffc0000000000 RBX: 0000000000000071 RCX: 0000000000000000
RDX: 000000000000000e RSI: ffffffff8176902f RDI: ffff88801c042658
RBP: 0000000000000061 R08: 0000000000000001 R09: ffffed1001dfcd29
R10: ffff88800efe694f R11: 00000000000b6996 R12: dffffc0000000000
R13: ffff88801c042740 R14: 0000000000000001 R15: ffff88801c042680
FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc25061169d CR3: 000000000f1e8000 CR4: 0000000000350ee0
BUG: Bad rss-counter state mm:00000000b0a35b92 type:MM_FILEPAGES val:33
BUG: Bad rss-counter state mm:00000000b0a35b92 type:MM_ANONPAGES val:22
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 03 80 3c 02 00 0f add 0xf00023c(%rax),%eax
6: 85 58 06 test %ebx,0x6(%rax)
9: 00 00 add %al,(%rax)
b: 48 8b 44 24 08 mov 0x8(%rsp),%rax
10: 48 8b 58 60 mov 0x60(%rax),%rbx
14: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1b: fc ff df
1e: 48 89 da mov %rbx,%rdx
21: 48 8d 6b f0 lea -0x10(%rbx),%rbp
25: 48 c1 ea 03 shr $0x3,%rdx
* 29: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction
2d: 0f 85 48 06 00 00 jne 0x67b
33: 48 8b 03 mov (%rbx),%rax
36: 4c 8d 68 f0 lea -0x10(%rax),%r13
3a: 48 39 1c 24 cmp %rbx,(%rsp)
3e: 0f .byte 0xf