# CVE-2026-90295: cpufreq: imx6q: fix out-of-bounds write when probed more than once

CVE-2026-90295 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-90295, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-90295
- Priority: High
- CVSS: 7.8 (Important)
- EPSS: 0.0021
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 17, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-90295

## Description

In the Linux kernel, the following vulnerability has been resolved:  cpufreq: imx6q: fix out-of-bounds write when probed more than once  imx6_soc_volt is allocated fresh on every probe, sized to the number of ARM OPPs:  	imx6_soc_volt = devm_kcalloc(cpu_dev, num, sizeof(*imx6_soc_volt), 				     GFP_KERNEL);  but it is filled through soc_opp_count, which has static storage and is never reset. A second bind after an unbind keeps indexing from where the first one stopped, and writes past the end of the new array.  Unbinding and rebinding the driver on qemu's mcimx6ul-evk, under KASAN:    BUG: KASAN: slab-out-of-bounds in imx6q_cpufreq_probe+0x3b0/0xa34   Write of size 4 at addr c5e90480 by task binder/73    imx6q_cpufreq_probe from platform_probe+0x88/0xe4    platform_probe from really_probe+0x108/0x384    bind_store from kernfs_fop_write_iter+0x1b4/0x28c  The write lands one u32 past the end of the allocation.  soc_opp_count is only read a few lines below the loop that fills it, so it never needed static storage. Make it a local.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.190-1 | [DEBIAN-CVE-2026-90295](https://patchblox.com/security/data/fix/linux/debian-cve-2026-90295.md) | Sep 23, 2026 |
| Linux | linux Debian 13.5 (trixie) | 6.12.111-1 | [DEBIAN-CVE-2026-90295](https://patchblox.com/security/data/fix/linux/debian-cve-2026-90295.md) | Sep 23, 2026 |
| Linux | linux Debian 14 | 7.2.6-1 | [DEBIAN-CVE-2026-90295](https://patchblox.com/security/data/fix/linux/debian-cve-2026-90295.md) | Sep 23, 2026 |
| Linux | linux-6.12 Debian 12.15 (bookworm) | 6.12.111-1~deb12u1 | [DEBIAN-CVE-2026-90295](https://patchblox.com/security/data/fix/linux/debian-cve-2026-90295.md) | Sep 23, 2026 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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