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CVE-2026-43260 is a logic flaw in the Linux kernel's bnxt_en network driver affecting deletion of RSS contexts. The driver should free the corresponding firmware VNIC each time an RSS context is deleted. A prior change introduced a condition that only deleted the firmware VNIC when netif_running() was true. As a result, when the network interface was closed while RSS contexts were still active, the associated firmware VNIC resources were not released, causing a resource leak in firmware. On a subsequent interface open, the driver could attempt to restore RSS contexts by creating additional VNICs that had not been reserved, and firmware could reject those requests. The fix removes the unnecessary netif_running() check because the underlying HWRM delete path already safely handles repeated deletion attempts for resources that were already freed.
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A Linux kernel vulnerability in the bnxt_en driver related to RSS context delete logic.
A Linux kernel vulnerability in the bnxt_en driver RSS context deletion logic that could leak firmware VNIC resources when RSS contexts are deleted while the interface is down, potentially causing failures restoring active RSS contexts on subsequent interface open.
A Linux kernel vulnerability in the bnxt_en driver related to RSS context delete logic.
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Cross-references every affected SKU, including bundled OEM variants.
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