CVE-2026-74706

Unknown

Description

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.

SeverityUnknown
CVSS—
Exploit probability—
ProductLinux
PublishedAug 22, 2026
First seenAug 22, 2026

How to fix

Update
  • Linux Linux83ef2f3cab7fe6dd9155cd598dc64be524d963a9, 1cb4298810e27e037d3ca07286ecbb97e89ba58d or later

Affected products

ProductAffected versionsFixed in
Linux Linux8ac050ec3b1c0dcb5e89cf86fe2ebe0afcc73554 ≤ v < 83ef2f3cab7fe6dd9155cd598dc64be524d963a9, 8ac050ec3b1c0dcb5e89cf86fe2ebe0afcc73554 ≤ v < 1cb4298810e27e037d3ca07286ecbb97e89ba58d, 6.1983ef2f3cab7fe6dd9155cd598dc64be524d963a9, 1cb4298810e27e037d3ca07286ecbb97e89ba58d

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