CVE-2026-43260

High

Description

In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Fix RSS context delete logic We need to free the corresponding RSS context VNIC in FW everytime an RSS context is deleted in driver. Commit 667ac333dbb7 added a check to delete the VNIC in FW only when netif_running() is true to help delete RSS contexts with interface down. Having that condition will make the driver leak VNICs in FW whenever close() happens with active RSS contexts. On the subsequent open(), as part of RSS context restoration, we will end up trying to create extra VNICs for which we did not make any reservation. FW can fail this request, thereby making us lose active RSS contexts. Suppose an RSS context is deleted already and we try to process a delete request again, then the HWRM functions will check for validity of the request and they simply return if the resource is already freed. So, even for delete-when-down cases, netif_running() check is not necessary. Remove the netif_running() condition check when deleting an RSS context.

SeverityHigh
CVSS7.8
Exploit probability—
ProductLinux Kernel
PublishedMay 6, 2026
First seenMay 6, 2026
Weakness typeCWE-415CWE-415

How to fix

Affected products

ProductAffected versionsFixed in
linux linux_kernel6.11 ≤ v < 6.12.75, 6.13 ≤ v < 6.18.16, 6.19 ≤ v < 6.19.6, 7.06.12.75, 6.18.16, 6.19.6

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.