CVE-2023-54063 Details
Description
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix OOB read in indx_insert_into_buffer Syzbot reported a OOB read bug: BUG: KASAN: slab-out-of-bounds in indx_insert_into_buffer+0xaa3/0x13b0 fs/ntfs3/index.c:1755 Read of size 17168 at addr ffff8880255e06c0 by task syz-executor308/3630 Call Trace: <TASK> memmove+0x25/0x60 mm/kasan/shadow.c:54 indx_insert_into_buffer+0xaa3/0x13b0 fs/ntfs3/index.c:1755 indx_insert_entry+0x446/0x6b0 fs/ntfs3/index.c:1863 ntfs_create_inode+0x1d3f/0x35c0 fs/ntfs3/inode.c:1548 ntfs_create+0x3e/0x60 fs/ntfs3/namei.c:100 lookup_open fs/namei.c:3413 [inline] If the member struct INDEX_BUFFER *index of struct indx_node is incorrect, that is, the value of __le32 used is greater than the value of __le32 total in struct INDEX_HDR. Therefore, OOB read occurs when memmove is called in indx_insert_into_buffer(). Fix this by adding a check in hdr_find_e().
A vulnerability allowing an out-of-bounds read has been identified in the Linux kernel's NTFS3 file system implementation. This issue arises in the 'indx_insert_into_buffer' function, where an incorrect index buffer can lead to reading beyond allocated memory. The flaw was reported by Syzbot and is associated with improper handling of index data, which can be exploited to read unauthorized memory areas.
Users can apply the official Linux kernel patches available in the Linux stable Git repository to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Dec 24, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/17048287ac79abd33b275ac3b5738285d406481b | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/4bf3b564e27a518f158a83d5e1a50064ed6136a0 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/a7e5dba10ba1402dd6c2f961a70320770865c4a5 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/b8c44949044e5f7f864525fdffe8e95135ce9ce5 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/cd7e1d67924081717c5c96ead758a1a77867689a | kernel.org | Source CodeVendor |
Weakness Enumeration
No weakness enumeration is available for this CVE.
Affected Products
| Product | Versions |
|---|---|
| Linux kernel | All versions |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 4, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Dec 24, 2025 | New CVE Received | kernel.org |