CVE-2026-74706

bnge: Fix NULL pointer dereference in aux device release

N/A
Published: August 22, 2026 at 03:33 PM UTC
Updated: October 14, 2026 at 01:10 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.198ac050ec3b1c0dcb5e89cf86fe2ebe0afcc73554
Vendor states this is fixed in 1cb4298810e27e037d3ca07286ecbb97e89ba58d (fixed)
Vendor states this is fixed in 83ef2f3cab7fe6dd9155cd598dc64be524d963a9 (fixed)
Vendor states this is fixed in 6.19 (unaffected)
Vendor states this is fixed in 7.1.9 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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