CVE-2026-53203
Published: June 27, 2026Last modified: July 6, 2026
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.1 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Not affected (6.1.33-r0) |
| 25 LTS | linux-lts | Fixed (6.12.95-r0) | |
| Stream | linux-lts | Fixed (6.18.38-r0) |
References
- https://access.redhat.com/security/cve/CVE-2026-53203
- https://bugzilla.redhat.com/show_bug.cgi?id=2492798
- https://git.kernel.org/stable/c/4e5047cc94bea1cc7b670b7f503358e9af0542df
- https://git.kernel.org/stable/c/d3c12ed33e8923f3090909a1738f3e59292996a6
- https://git.kernel.org/stable/c/fa598556ecef412edcb391f144b7642e18fdfd45
- https://git.kernel.org/stable/c/fb176425837693f50c5c9fc8db6fbb04af22bd0a
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53203.json