CVE-2023-54063fs/ntfs3: Fix OOB read in indx_insert_into_buffer
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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().
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Deferred
- Record last updated
- Aug 5, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 82cae269cfa953032fbb8980a7d554d60fb00b17 before cd7e1d67924081717c5c96ead758a1a77867689a; from 82cae269cfa953032fbb8980a7d554d60fb00b17 before 17048287ac79abd33b275ac3b5738285d406481b; from 82cae269cfa953032fbb8980a7d554d60fb00b17 before a7e5dba10ba1402dd6c2f961a70320770865c4a5; 82cae269cfa953032fbb8980a7d554d60fb00b17 builds before 4bf3b564e27a518f158a83d5e1a50064ed6136a0; from 82cae269cfa953032fbb8980a7d554d60fb00b17 before b8c44949044e5f7f864525fdffe8e95135ce9ce5 | CNA record |
References
- https://git.kernel.org/stable/c/cd7e1d67924081717c5c96ead758a1a77867689a
- https://git.kernel.org/stable/c/17048287ac79abd33b275ac3b5738285d406481b
- https://git.kernel.org/stable/c/a7e5dba10ba1402dd6c2f961a70320770865c4a5
- https://git.kernel.org/stable/c/4bf3b564e27a518f158a83d5e1a50064ed6136a0
- https://git.kernel.org/stable/c/b8c44949044e5f7f864525fdffe8e95135ce9ce5
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.