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Vulnerability record · CVE-2026-53203 · published 25 June 2026

CVE-2026-53203: Linux kernel out-of-bounds write vulnerability

Linux · Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Add buffer overflow check in MS get_info_ioctl Add validation that the info size returned from the metric stream info query is not exceeded when checked against the allocated buffer size. If the firmware returns a size larger than the buffer, reject the operation with -EOVERFLOW instead of proceeding with an incorrect buffer copy.

7.1 CVSS 3.1 High EPSS 0.14% · top 97.0% CWE-787 · Out-of-bounds writeCWE-120 · Classic buffer overflow
7.1CVSS 3.1 base score
0.14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References
15 Jul 2026Last modified by NVD

Description

In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Add buffer overflow check in MS get_info_ioctl Add validation that the info size returned from the metric stream info query is not exceeded when checked against the allocated buffer size. If the firmware returns a size larger than the buffer, reject the operation with -EOVERFLOW instead of proceeding with an incorrect buffer copy.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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/4e5047cc94bea1cc7b670b7f503358e9af0542df Patch
https://git.kernel.org/stable/c/d3c12ed33e8923f3090909a1738f3e59292996a6 Patch
https://git.kernel.org/stable/c/fa598556ecef412edcb391f144b7642e18fdfd45 Patch
https://git.kernel.org/stable/c/fb176425837693f50c5c9fc8db6fbb04af22bd0a Patch
https://access.redhat.com/security/cve/CVE-2026-53203 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2492798 Third Party Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53203.json Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-53203), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.