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CVE-2026-53203

accel/ivpu: Add buffer overflow check in MS get_info_ioctl

HIGH
7.1
CVSS Score
Published: June 25, 2026 at 08:39 AM UTC
Updated: October 19, 2026 at 08:19 PM UTC
2 products affected across 2 vendorsLinux KernelEnterprise Linux

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Severity
HIGH7.1
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.11 ≤ v < 6.12.946.13 ≤ v < 6.18.366.19 ≤ v < 7.0.137.17.1 rc17.1 rc27.1 rc37.1 rc47.1 rc57.1 rc6cdfad4db7756563db7d458216d9e3c2651dddc7d
Vendor states this is fixed in 4e5047cc94bea1cc7b670b7f503358e9af0542df (fixed)
Vendor states this is fixed in d3c12ed33e8923f3090909a1738f3e59292996a6 (fixed)
Vendor states this is fixed in fa598556ecef412edcb391f144b7642e18fdfd45 (fixed)
Vendor states this is fixed in fb176425837693f50c5c9fc8db6fbb04af22bd0a (fixed)
Vendor states this is fixed in 6.11 (unaffected)
Vendor states this is fixed in 6.12.94 (unaffected)
Vendor states this is fixed in 6.18.36 (unaffected)
Vendor states this is fixed in 7.0.13 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)
Enterprise Linux· Red Hatrpm
60%
10
Vendor states this is fixed in 6 (unaffected)
Vendor states this is fixed in 7 (unaffected)
Vendor states this is fixed in 8 (unaffected)

References (7)

Patch
Source: cverecord
https://git.kernel.org/stable/c/d3c12ed33e8923f3090909a1738f3e59292996a6
Patch
Source: cverecord
https://git.kernel.org/stable/c/fa598556ecef412edcb391f144b7642e18fdfd45
Patch
Source: cverecord
https://git.kernel.org/stable/c/4e5047cc94bea1cc7b670b7f503358e9af0542df
Patch
Source: cverecord
https://git.kernel.org/stable/c/fb176425837693f50c5c9fc8db6fbb04af22bd0a
Third Party Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://access.redhat.com/security/cve/CVE-2026-53203
Third Party Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://bugzilla.redhat.com/show_bug.cgi?id=2492798
Third Party Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53203.json

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-120CWE-787

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