# CVE-2024-42282: linux: In the Linux kernel, the following vulnerability has been resolved:  net: mediatek: Fix potential NULL pointer derefe...

CVE-2024-42282 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-42282, released August 17, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-42282
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0022
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 17, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  net: mediatek: Fix potential NULL pointer dereference in dummy net_device handling  Move the freeing of the dummy net_device from mtk_free_dev() to mtk_remove().  Previously, if alloc_netdev_dummy() failed in mtk_probe(), eth->dummy_dev would be NULL. The error path would then call mtk_free_dev(), which in turn called free_netdev() assuming dummy_dev was allocated (but it was not), potentially causing a NULL pointer dereference.  By moving free_netdev() to mtk_remove(), we ensure it's only called when mtk_probe() has succeeded and dummy_dev is fully allocated. This addresses a potential NULL pointer dereference detected by Smatch[1].

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.10.3-1 | [DEBIAN-CVE-2024-42282](https://patchblox.com/security/data/fix/linux/debian-cve-2024-42282.md) | Aug 17, 2024 |
| Linux | linux Debian 14 | 6.10.3-1 | [DEBIAN-CVE-2024-42282](https://patchblox.com/security/data/fix/linux/debian-cve-2024-42282.md) | Aug 17, 2024 |

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