loop5: detected capacity change from 0 to 4096
==================================================================
BUG: KASAN: slab-use-after-free in ntfs_write_bh+0x6b9/0x6e0 fs/ntfs3/fsntfs.c:1401
Read of size 8 at addr ffff888034656000 by task syz-executor.5/22013
CPU: 1 PID: 22013 Comm: syz-executor.5 Not tainted 6.6.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:364 [inline]
print_report+0xc4/0x620 mm/kasan/report.c:475
kasan_report+0xda/0x110 mm/kasan/report.c:588
ntfs_write_bh+0x6b9/0x6e0 fs/ntfs3/fsntfs.c:1401
mi_write+0xc0/0x1e0 fs/ntfs3/record.c:346
ni_write_inode+0x102c/0x2810 fs/ntfs3/frecord.c:3360
write_inode fs/fs-writeback.c:1456 [inline]
__writeback_single_inode+0xa81/0xe70 fs/fs-writeback.c:1668
writeback_single_inode+0x2af/0x590 fs/fs-writeback.c:1724
sync_inode_metadata+0xa5/0xe0 fs/fs-writeback.c:2786
ntfs_set_state+0x3f0/0x6e0 fs/ntfs3/fsntfs.c:995
ntfs_create_inode+0x317/0x4290 fs/ntfs3/inode.c:1307
ntfs_atomic_open+0x4d2/0x650 fs/ntfs3/namei.c:422
atomic_open fs/namei.c:3358 [inline]
lookup_open.isra.0+0xc44/0x1360 fs/namei.c:3466
open_last_lookups fs/namei.c:3563 [inline]
path_openat+0x931/0x29c0 fs/namei.c:3793
do_filp_open+0x1de/0x430 fs/namei.c:3823
do_sys_openat2+0x176/0x1e0 fs/open.c:1422
do_sys_open fs/open.c:1437 [inline]
__do_sys_open fs/open.c:1445 [inline]
__se_sys_open fs/open.c:1441 [inline]
__x64_sys_open+0x154/0x1e0 fs/open.c:1441
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f541527cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5415ff60c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f541539bf80 RCX: 00007f541527cae9
RDX: 0000000000000000 RSI: 0000000000060142 RDI: 0000000020000000
RBP: 00007f54152c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f541539bf80 R15: 00007ffdc347fc48
Allocated by task 4491:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
__kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook mm/slab.h:762 [inline]
slab_alloc_node mm/slub.c:3478 [inline]
slab_alloc mm/slub.c:3486 [inline]
__kmem_cache_alloc_lru mm/slub.c:3493 [inline]
kmem_cache_alloc+0x172/0x3b0 mm/slub.c:3502
getname_flags.part.0+0x50/0x4d0 fs/namei.c:140
getname_flags+0x9c/0xf0 include/linux/audit.h:321
vfs_fstatat+0x9a/0x140 fs/stat.c:331
__do_sys_newfstatat+0x98/0x110 fs/stat.c:502
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Freed by task 4491:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522
____kasan_slab_free mm/kasan/common.c:236 [inline]
____kasan_slab_free+0x15b/0x1b0 mm/kasan/common.c:200
kasan_slab_free include/linux/kasan.h:164 [inline]
slab_free_hook mm/slub.c:1800 [inline]
slab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826
slab_free mm/slub.c:3809 [inline]
kmem_cache_free+0xf0/0x480 mm/slub.c:3831
putname fs/namei.c:273 [inline]
putname+0x101/0x140 fs/namei.c:259
vfs_fstatat+0xbd/0x140 fs/stat.c:333
__do_sys_newfstatat+0x98/0x110 fs/stat.c:502
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
The buggy address belongs to the object at ffff888034655500
which belongs to the cache names_cache of size 4096
The buggy address is located 2816 bytes inside of
freed 4096-byte region [ffff888034655500, ffff888034656500)
The buggy address belongs to the physical page:
page:ffffea0000d19400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x34650
head:ffffea0000d19400 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000840 ffff888140008780 ffffea000078f000 dead000000000002
raw: 0000000000000000 0000000000070007 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 4491, tgid 4491 (udevd), ts 460154330020, free_ts 460043765961
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x2cf/0x340 mm/page_alloc.c:1536
prep_new_page mm/page_alloc.c:1543 [inline]
get_page_from_freelist+0xee0/0x2f20 mm/page_alloc.c:3170
__alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4426
alloc_pages+0x1a9/0x270 mm/mempolicy.c:2298
alloc_slab_page mm/slub.c:1870 [inline]
allocate_slab+0x251/0x380 mm/slub.c:2017
new_slab mm/slub.c:2070 [inline]
___slab_alloc+0x8be/0x1570 mm/slub.c:3223
__slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3322
__slab_alloc_node mm/slub.c:3375 [inline]
slab_alloc_node mm/slub.c:3468 [inline]
slab_alloc mm/slub.c:3486 [inline]
__kmem_cache_alloc_lru mm/slub.c:3493 [inline]
kmem_cache_alloc+0x392/0x3b0 mm/slub.c:3502
getname_flags.part.0+0x50/0x4d0 fs/namei.c:140
getname_flags+0x9c/0xf0 include/linux/audit.h:321
user_path_at_empty+0x2c/0x60 fs/namei.c:2909
do_readlinkat+0xdd/0x2f0 fs/stat.c:533
__do_sys_readlink fs/stat.c:566 [inline]
__se_sys_readlink fs/stat.c:563 [inline]
__x64_sys_readlink+0x78/0xb0 fs/stat.c:563
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1136 [inline]
free_unref_page_prepare+0x476/0xa40 mm/page_alloc.c:2312
free_unref_page+0x33/0x3b0 mm/page_alloc.c:2405
__unfreeze_partials+0x21d/0x240 mm/slub.c:2655
qlink_free mm/kasan/quarantine.c:166 [inline]
qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:185
kasan_quarantine_reduce+0x18b/0x1d0 mm/kasan/quarantine.c:292
__kasan_slab_alloc+0x65/0x90 mm/kasan/common.c:305
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook mm/slab.h:762 [inline]
slab_alloc_node mm/slub.c:3478 [inline]
slab_alloc mm/slub.c:3486 [inline]
__kmem_cache_alloc_lru mm/slub.c:3493 [inline]
kmem_cache_alloc+0x172/0x3b0 mm/slub.c:3502
getname_flags.part.0+0x50/0x4d0 fs/namei.c:140
getname_flags+0x9c/0xf0 include/linux/audit.h:321
user_path_at_empty+0x2c/0x60 fs/namei.c:2909
user_path_at include/linux/namei.h:57 [inline]
__do_sys_chdir fs/open.c:551 [inline]
__se_sys_chdir fs/open.c:545 [inline]
__x64_sys_chdir+0xce/0x270 fs/open.c:545
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Memory state around the buggy address:
ffff888034655f00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888034655f80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888034656000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888034656080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888034656100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 0 PID: 22013 Comm: syz-executor.5 Tainted: G B 6.6.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
RIP: 0010:ntfs_write_bh+0x5b/0x6e0 fs/ntfs3/fsntfs.c:1402
Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 6e 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 1b 48 8d 7b 18 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 42 06 00 00 8b 43 18 89 44 24 48 48 8b 44 24 10
RSP: 0018:ffffc9000360f218 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc900098c1000
RDX: 0000000000000003 RSI: ffffffff81dd7197 RDI: 0000000000000018
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88803bf1807c
R13: ffff888034656000 R14: ffff88803bf18250 R15: ffff88803bf18290
FS: 00007f5415ff66c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9e0d490000 CR3: 0000000029fdb000 CR4: 0000000000350ef0
Call Trace:
mi_write+0xc0/0x1e0 fs/ntfs3/record.c:346
ni_write_inode+0x102c/0x2810 fs/ntfs3/frecord.c:3360
write_inode fs/fs-writeback.c:1456 [inline]
__writeback_single_inode+0xa81/0xe70 fs/fs-writeback.c:1668
writeback_single_inode+0x2af/0x590 fs/fs-writeback.c:1724
sync_inode_metadata+0xa5/0xe0 fs/fs-writeback.c:2786
ntfs_set_state+0x3f0/0x6e0 fs/ntfs3/fsntfs.c:995
ntfs_create_inode+0x317/0x4290 fs/ntfs3/inode.c:1307
ntfs_atomic_open+0x4d2/0x650 fs/ntfs3/namei.c:422
atomic_open fs/namei.c:3358 [inline]
lookup_open.isra.0+0xc44/0x1360 fs/namei.c:3466
open_last_lookups fs/namei.c:3563 [inline]
path_openat+0x931/0x29c0 fs/namei.c:3793
do_filp_open+0x1de/0x430 fs/namei.c:3823
do_sys_openat2+0x176/0x1e0 fs/open.c:1422
do_sys_open fs/open.c:1437 [inline]
__do_sys_open fs/open.c:1445 [inline]
__se_sys_open fs/open.c:1441 [inline]
__x64_sys_open+0x154/0x1e0 fs/open.c:1441
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f541527cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5415ff60c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f541539bf80 RCX: 00007f541527cae9
RDX: 0000000000000000 RSI: 0000000000060142 RDI: 0000000020000000
RBP: 00007f54152c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f541539bf80 R15: 00007ffdc347fc48
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ntfs_write_bh+0x5b/0x6e0 fs/ntfs3/fsntfs.c:1402
Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 6e 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 1b 48 8d 7b 18 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 42 06 00 00 8b 43 18 89 44 24 48 48 8b 44 24 10
RSP: 0018:ffffc9000360f218 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc900098c1000
RDX: 0000000000000003 RSI: ffffffff81dd7197 RDI: 0000000000000018
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88803bf1807c
R13: ffff888034656000 R14: ffff88803bf18250 R15: ffff88803bf18290
FS: 00007f5415ff66c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9e0d490000 CR3: 0000000029fdb000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess), 4 bytes skipped:
0: 48 c1 ea 03 shr $0x3,%rdx
4: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
8: 0f 85 6e 06 00 00 jne 0x67c
e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
15: fc ff df
18: 48 8b 1b mov (%rbx),%rbx
1b: 48 8d 7b 18 lea 0x18(%rbx),%rdi
1f: 48 89 fa mov %rdi,%rdx
22: 48 c1 ea 03 shr $0x3,%rdx
* 26: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction
2a: 0f 85 42 06 00 00 jne 0x672
30: 8b 43 18 mov 0x18(%rbx),%eax
33: 89 44 24 48 mov %eax,0x48(%rsp)
37: 48 8b 44 24 10 mov 0x10(%rsp),%rax