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CVE-2026-43260

Full vulnerability record from the local CVENow database.

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.

Severity
HIGH
CVSS score
7.8 (v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-05-06 12:16:46.883000
Last modified
2026-11-06 16:18:30.107000
View original CVE JSON 
{
  "id": "CVE-2026-43260",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-05-06T12:16:46.883",
  "lastModified": "2026-11-06T16:18:30.107",
  "vulnStatus": "Analyzed",
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    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Fix RSS context delete logic\n\nWe need to free the corresponding RSS context VNIC\nin FW everytime an RSS context is deleted in driver.\nCommit 667ac333dbb7 added a check to delete the VNIC\nin FW only when netif_running() is true to help delete\nRSS contexts with interface down.\n\nHaving that condition will make the driver leak VNICs\nin FW whenever close() happens with active RSS contexts.\nOn the subsequent open(), as part of RSS context restoration,\nwe will end up trying to create extra VNICs for which we\ndid not make any reservation. FW can fail this request,\nthereby making us lose active RSS contexts.\n\nSuppose an RSS context is deleted already and we try to\nprocess a delete request again, then the HWRM functions\nwill check for validity of the request and they simply\nreturn if the resource is already freed. So, even for\ndelete-when-down cases, netif_running() check is not\nnecessary.\n\nRemove the netif_running() condition check when deleting\nan RSS context."
    }
  ],
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