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Vulnerability record · CVE-2023-53541 · published 4 October 2025

CVE-2023-53541: Linux kernel out-of-bounds write vulnerability

Linux · Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: brcmnand: Fix potential out-of-bounds access in oob write When the oob buffer length is not in multiple of words, the oob write function does out-of-bounds read on the oob source buffer at the last iteration. Fix that by always checking length limit on the oob buffer read and fill with 0xff when reaching the end of the buffer to the oob registers.

7.8 CVSS 3.1 High EPSS 0.16% · top 95.0% CWE-787 · Out-of-bounds write
7.8CVSS 3.1 base score
0.16%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: brcmnand: Fix potential out-of-bounds access in oob write When the oob buffer length is not in multiple of words, the oob write function does out-of-bounds read on the oob source buffer at the last iteration. Fix that by always checking length limit on the oob buffer read and fill with 0xff when reaching the end of the buffer to the oob registers.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/14b1d00520b4d6a4818364334ce472b79cfc8976 Patch
https://git.kernel.org/stable/c/2353b7bb61e45e7cfd21505d0c6747ac8c9496a1 Patch
https://git.kernel.org/stable/c/2bc3d6ac704ea7263175ea3da663fdbbb7f3dd8b Patch
https://git.kernel.org/stable/c/45fe4ad7f439799ee1b7b5f80bf82e8b34a98d25 Patch
https://git.kernel.org/stable/c/5d53244186c9ac58cb88d76a0958ca55b83a15cd Patch
https://git.kernel.org/stable/c/648d1150a688698e37f7aaf302860180901cb30e Patch
https://git.kernel.org/stable/c/aae45746f4aee9818296e0500e0703e9d8caa5b8 Patch
https://git.kernel.org/stable/c/d00b031266514a9395124704630b056a5185ec17 Patch

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Source: NIST National Vulnerability Database (record CVE-2023-53541), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.