CVE-2026-53202
Published: June 27, 2026Last modified: July 6, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Fix signed integer truncation in IPC receive Fix potential buffer overflow where firmware-supplied data_size is cast to signed int before being used in min_t(). Large unsigned values (>= 0x80000000) become negative, causing unsigned wraparound and oversized memcpy operations that can overflow the stack buffer. Change min_t(int, ...) to min() as both values are unsigned and can be handled by min() without explicit cast.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-2026-53202
- https://bugzilla.redhat.com/show_bug.cgi?id=2492823
- https://git.kernel.org/stable/c/2821bf2b79e47f87e1dbdd9d25c78240965a97d6
- https://git.kernel.org/stable/c/45cb105b8642c65e9be286f7058e92314efe7ea3
- https://git.kernel.org/stable/c/4788556d4dd9d717037e385de178974e9649231d
- https://git.kernel.org/stable/c/d9faef564438d1e4579c692c046603e7ada7bdf4
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53202.json