CVE-2026-74706: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: bnge: Fix NULL pointer dereference in aux device release If allocation of auxr_dev fails during auxiliary device setup, the error path calls auxiliary_device_uninit(), which eventually invokes bnge_aux_dev_release(). The release callback unconditionally dereferences aux_priv->auxr_dev->pdev to retrieve the parent bnge_dev. Since auxr_dev has not yet been allocated on this failure path, the dereference results in a NULL pointer exception Retrieve the parent bnge_dev from the auxiliary device's parent instead of auxr_dev, and free auxr_dev only when it was successfully allocated. This allows the release callback to correctly clean up partially initialized auxiliary devices.

Засегнати продукти

• Linux Linux: 8ac050ec3b1c0dcb5e89cf86fe2ebe0afcc73554 преди 83ef2f3cab7fe6dd9155cd598dc64be524d963a9; 8ac050ec3b1c0dcb5e89cf86fe2ebe0afcc73554 преди 1cb4298810e27e037d3ca07286ecbb97e89ba58d
• Linux Linux: 6.19; преди 6.19; 7.1.9 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-74706
• https://nvd.nist.gov/vuln/detail/CVE-2026-74706
• https://git.kernel.org/stable/c/83ef2f3cab7fe6dd9155cd598dc64be524d963a9
• https://git.kernel.org/stable/c/1cb4298810e27e037d3ca07286ecbb97e89ba58d