# CVE-2026-90405: linux: In the Linux kernel, the following vulnerability has been resolved:  media: stm32: dcmi: fix some error handling bugs...

CVE-2026-90405 is fixed in linux on 1 platform by DEBIAN-CVE-2026-90405 (version 7.2.6-1), released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-90405
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0020
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 17, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  media: stm32: dcmi: fix some error handling bugs in probe()  There are a few issues here:  1) After we assign:         chan = dma_request_chan(&pdev->dev, "tx");    Then the error paths need to clean up before returning.  The first    error path does a direct return. 2) The error paths check "dcmi->mdma_chan" but that is not assigned    until later so it results in memory leaks.  Test "mdma_chan"    instead. 3) The error handling calls dma_release_channel(dcmi->dma_chan) before    "dcmi->dma_chan" has been assigned which leads to a NULL pointer    dereference.  Use the "chan" variable instead.  I also moved the call to dma_release_channel() after the call to dma_release_channel() so it mirrors the allocation code better.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.2.6-1 | [DEBIAN-CVE-2026-90405](https://patchblox.com/security/data/fix/linux/debian-cve-2026-90405.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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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