CVE-2026-43260

HIGH EPSS 3.6%
Published May 6, 20261mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published May 6, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
3.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-415

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥6.11  –  <6.12.75
linuxlinux_kernel*≥6.13  –  <6.18.16
linuxlinux_kernel*≥6.19  –  <6.19.6
linuxlinux_kernel7.0any

References 4

  • git.kernel.org https://git.kernel.org/stable/c/079986d6db1f8e3d50c55f400cf998ac9690d2c8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/348a5f8d06c7bdf954e13c17ad5f80b59a075604
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9a9b89eea4a9cc7726702946ff688d716962fabd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e123d9302d223767bd910bfbcfe607bae909f8ac
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/079986d6db1f8e3d50c55f400cf998ac9690d2c8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/348a5f8d06c7bdf954e13c17ad5f80b59a075604
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9a9b89eea4a9cc7726702946ff688d716962fabd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e123d9302d223767bd910bfbcfe607bae909f8ac
    Patch