In the Linux kernel, the following vulnerability has been resolved:
fs/ntfs3: Fix NULL pointer dereference in 'ni_write_inode'
Syzbot found the following issue:
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000016
Mem abort info:
ESR = 0x0000000096000006
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x06: level 2 translation fault
Data abort info:
ISV = 0, ISS = 0x00000006
CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=000000010af56000
[0000000000000016] pgd=08000001090da003, p4d=08000001090da003, pud=08000001090ce003, pmd=0000000000000000
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 3036 Comm: syz-executor206 Not tainted 6.0.0-rc6-syzkaller-17739-g16c9f284e746 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : is_rec_inuse fs/ntfs3/ntfs.h:313 [inline]
pc : ni_write_inode+0xac/0x798 fs/ntfs3/frecord.c:3232
lr : ni_write_inode+0xa0/0x798 fs/ntfs3/frecord.c:3226
sp : ffff8000126c3800
x29: ffff8000126c3860 x28: 0000000000000000 x27: ffff0000c8b02000
x26: ffff0000c7502320 x25: ffff0000c7502288 x24: 0000000000000000
x23: ffff80000cbec91c x22: ffff0000c8b03000 x21: ffff0000c8b02000
x20: 0000000000000001 x19: ffff0000c75024d8 x18: 00000000000000c0
x17: ffff80000dd1b198 x16: ffff80000db59158 x15: ffff0000c4b6b500
x14: 00000000000000b8 x13: 0000000000000000 x12: ffff0000c4b6b500
x11: ff80800008be1b60 x10: 0000000000000000 x9 : ffff0000c4b6b500
x8 : 0000000000000000 x7 : ffff800008be1b50 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
is_rec_inuse fs/ntfs3/ntfs.h:313 [inline]
ni_write_inode+0xac/0x798 fs/ntfs3/frecord.c:3232
ntfs_evict_inode+0x54/0x84 fs/ntfs3/inode.c:1744
evict+0xec/0x334 fs/inode.c:665
iput_final fs/inode.c:1748 [inline]
iput+0x2c4/0x324 fs/inode.c:1774
ntfs_new_inode+0x7c/0xe0 fs/ntfs3/fsntfs.c:1660
ntfs_create_inode+0x20c/0xe78 fs/ntfs3/inode.c:1278
ntfs_create+0x54/0x74 fs/ntfs3/namei.c:100
lookup_open fs/namei.c:3413 [inline]
open_last_lookups fs/namei.c:3481 [inline]
path_openat+0x804/0x11c4 fs/namei.c:3688
do_filp_open+0xdc/0x1b8 fs/namei.c:3718
do_sys_openat2+0xb8/0x22c fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__arm64_sys_openat+0xb0/0xe0 fs/open.c:1338
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
el0t_64_sync+0x18c/0x190
Code: 97dafee4 340001b4 f9401328 2a1f03e0 (79402d14)
---[ end trace 0000000000000000 ]---
Above issue may happens as follows:
ntfs_new_inode
mi_init
mi->mrec = kmalloc(sbi->record_size, GFP_NOFS); -->failed to allocate memory
if (!mi->mrec)
return -ENOMEM;
iput
iput_final
evict
ntfs_evict_inode
ni_write_inode
is_rec_inuse(ni->mi.mrec)-> As 'ni->mi.mrec' is NULL trigger NULL-ptr-deref
To solve above issue if new inode failed make inode bad before call 'iput()' in
'ntfs_new_inode()'.
fs/ntfs3: Fix NULL pointer dereference in 'ni_write_inode'
Syzbot found the following issue:
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000016
Mem abort info:
ESR = 0x0000000096000006
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x06: level 2 translation fault
Data abort info:
ISV = 0, ISS = 0x00000006
CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=000000010af56000
[0000000000000016] pgd=08000001090da003, p4d=08000001090da003, pud=08000001090ce003, pmd=0000000000000000
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 3036 Comm: syz-executor206 Not tainted 6.0.0-rc6-syzkaller-17739-g16c9f284e746 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : is_rec_inuse fs/ntfs3/ntfs.h:313 [inline]
pc : ni_write_inode+0xac/0x798 fs/ntfs3/frecord.c:3232
lr : ni_write_inode+0xa0/0x798 fs/ntfs3/frecord.c:3226
sp : ffff8000126c3800
x29: ffff8000126c3860 x28: 0000000000000000 x27: ffff0000c8b02000
x26: ffff0000c7502320 x25: ffff0000c7502288 x24: 0000000000000000
x23: ffff80000cbec91c x22: ffff0000c8b03000 x21: ffff0000c8b02000
x20: 0000000000000001 x19: ffff0000c75024d8 x18: 00000000000000c0
x17: ffff80000dd1b198 x16: ffff80000db59158 x15: ffff0000c4b6b500
x14: 00000000000000b8 x13: 0000000000000000 x12: ffff0000c4b6b500
x11: ff80800008be1b60 x10: 0000000000000000 x9 : ffff0000c4b6b500
x8 : 0000000000000000 x7 : ffff800008be1b50 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
is_rec_inuse fs/ntfs3/ntfs.h:313 [inline]
ni_write_inode+0xac/0x798 fs/ntfs3/frecord.c:3232
ntfs_evict_inode+0x54/0x84 fs/ntfs3/inode.c:1744
evict+0xec/0x334 fs/inode.c:665
iput_final fs/inode.c:1748 [inline]
iput+0x2c4/0x324 fs/inode.c:1774
ntfs_new_inode+0x7c/0xe0 fs/ntfs3/fsntfs.c:1660
ntfs_create_inode+0x20c/0xe78 fs/ntfs3/inode.c:1278
ntfs_create+0x54/0x74 fs/ntfs3/namei.c:100
lookup_open fs/namei.c:3413 [inline]
open_last_lookups fs/namei.c:3481 [inline]
path_openat+0x804/0x11c4 fs/namei.c:3688
do_filp_open+0xdc/0x1b8 fs/namei.c:3718
do_sys_openat2+0xb8/0x22c fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__arm64_sys_openat+0xb0/0xe0 fs/open.c:1338
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
el0t_64_sync+0x18c/0x190
Code: 97dafee4 340001b4 f9401328 2a1f03e0 (79402d14)
---[ end trace 0000000000000000 ]---
Above issue may happens as follows:
ntfs_new_inode
mi_init
mi->mrec = kmalloc(sbi->record_size, GFP_NOFS); -->failed to allocate memory
if (!mi->mrec)
return -ENOMEM;
iput
iput_final
evict
ntfs_evict_inode
ni_write_inode
is_rec_inuse(ni->mi.mrec)-> As 'ni->mi.mrec' is NULL trigger NULL-ptr-deref
To solve above issue if new inode failed make inode bad before call 'iput()' in
'ntfs_new_inode()'.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux | unaffected |
|
|||||||||||||||||||||
| Linux | Linux | affected |
|
No data.
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Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 31 Dec 2025 12:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Tue, 30 Dec 2025 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix NULL pointer dereference in 'ni_write_inode' Syzbot found the following issue: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000016 Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=000000010af56000 [0000000000000016] pgd=08000001090da003, p4d=08000001090da003, pud=08000001090ce003, pmd=0000000000000000 Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 3036 Comm: syz-executor206 Not tainted 6.0.0-rc6-syzkaller-17739-g16c9f284e746 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : is_rec_inuse fs/ntfs3/ntfs.h:313 [inline] pc : ni_write_inode+0xac/0x798 fs/ntfs3/frecord.c:3232 lr : ni_write_inode+0xa0/0x798 fs/ntfs3/frecord.c:3226 sp : ffff8000126c3800 x29: ffff8000126c3860 x28: 0000000000000000 x27: ffff0000c8b02000 x26: ffff0000c7502320 x25: ffff0000c7502288 x24: 0000000000000000 x23: ffff80000cbec91c x22: ffff0000c8b03000 x21: ffff0000c8b02000 x20: 0000000000000001 x19: ffff0000c75024d8 x18: 00000000000000c0 x17: ffff80000dd1b198 x16: ffff80000db59158 x15: ffff0000c4b6b500 x14: 00000000000000b8 x13: 0000000000000000 x12: ffff0000c4b6b500 x11: ff80800008be1b60 x10: 0000000000000000 x9 : ffff0000c4b6b500 x8 : 0000000000000000 x7 : ffff800008be1b50 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: is_rec_inuse fs/ntfs3/ntfs.h:313 [inline] ni_write_inode+0xac/0x798 fs/ntfs3/frecord.c:3232 ntfs_evict_inode+0x54/0x84 fs/ntfs3/inode.c:1744 evict+0xec/0x334 fs/inode.c:665 iput_final fs/inode.c:1748 [inline] iput+0x2c4/0x324 fs/inode.c:1774 ntfs_new_inode+0x7c/0xe0 fs/ntfs3/fsntfs.c:1660 ntfs_create_inode+0x20c/0xe78 fs/ntfs3/inode.c:1278 ntfs_create+0x54/0x74 fs/ntfs3/namei.c:100 lookup_open fs/namei.c:3413 [inline] open_last_lookups fs/namei.c:3481 [inline] path_openat+0x804/0x11c4 fs/namei.c:3688 do_filp_open+0xdc/0x1b8 fs/namei.c:3718 do_sys_openat2+0xb8/0x22c fs/open.c:1311 do_sys_open fs/open.c:1327 [inline] __do_sys_openat fs/open.c:1343 [inline] __se_sys_openat fs/open.c:1338 [inline] __arm64_sys_openat+0xb0/0xe0 fs/open.c:1338 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 Code: 97dafee4 340001b4 f9401328 2a1f03e0 (79402d14) ---[ end trace 0000000000000000 ]--- Above issue may happens as follows: ntfs_new_inode mi_init mi->mrec = kmalloc(sbi->record_size, GFP_NOFS); -->failed to allocate memory if (!mi->mrec) return -ENOMEM; iput iput_final evict ntfs_evict_inode ni_write_inode is_rec_inuse(ni->mi.mrec)-> As 'ni->mi.mrec' is NULL trigger NULL-ptr-deref To solve above issue if new inode failed make inode bad before call 'iput()' in 'ntfs_new_inode()'. | |
| Title | fs/ntfs3: Fix NULL pointer dereference in 'ni_write_inode' | |
| First Time appeared |
Linux
Linux linux Kernel |
|
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
|
| References |
|
Projects
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MITRE
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-01-05T10:51:26.508Z
Reserved: 2025-12-30T12:06:44.498Z
Link: CVE-2023-54196
Vulnrichment
No data.
NVD
Status : Awaiting Analysis
Published: 2025-12-30T13:16:07.653
Modified: 2025-12-31T20:43:05.160
Link: CVE-2023-54196
Redhat
OpenCVE Enrichment
No data.
Weaknesses
No weakness.