What is CVE-2023-54063?

CVE-2023-54063 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 5.15 onward and patched in 5.15.111, 6.1.28, 6.2.15 and others. CVE-2023-54063 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-54063?

CVE-2023-54063 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2023-54063?

Yes, CVE-2023-54063 has been patched. Fixed versions include 5.15.111, 6.1.28, 6.2.15 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-54063 actively exploited?

CVE-2023-54063 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-54063

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().

Package Linux Kernel

Published 2025-12-24

Last modified 2026-04-15

Patch available

Yes

Affected versions

Linux kernel versions 5.15 and later are affected. Fixed in 5.15.111, 6.1.28, 6.2.15, 6.3.2, 6.4 and their respective stable series.

Affected from

≥ 5.15

Fixed in

✓ 5.15.111 5.15.x ✓ 6.1.28 6.1.x ✓ 6.2.15 6.2.x ✓ 6.3.2 6.3.x ✓ 6.4

References

The following references provide additional information about CVE-2023-54063 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/17048287ac79abd33b275ac3b5738285d406481b
Patch
Kernel patch commit
https://git.kernel.org/stable/c/4bf3b564e27a518f158a83d5e1a50064ed6136a0
Patch
Kernel patch commit
https://git.kernel.org/stable/c/a7e5dba10ba1402dd6c2f961a70320770865c4a5
Patch

5 patch commits total View all on NVD

Frequently asked questions

What is CVE-2023-54063?

CVE-2023-54063 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.15 onward and has been patched in 5.15.111, 6.1.28, 6.2.15 and others. CVE-2023-54063 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2023-54063?

Yes — CVE-2023-54063 has been patched. Fixed versions include 5.15.111, 6.1.28, 6.2.15 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-54063 actively exploited?

No — CVE-2023-54063 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.