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wifi: libertas: fix memory leak in helper_firmware_cb()

Type: advisorySource: OSV1 source record

In the Linux kernel, the following vulnerability has been resolved: wifi: libertas: fix memory leak in helper_firmware_cb() helper_firmware_cb() neglects to free the single-stage firmware image after a successful async load, leading to a memory leak in the USB firmware-download path. Fix this memory leak by calling release_firmware() immediately after lbs_fw_loaded() returns. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in the current wireless tree. An x86_64 allyesconfig build showed no new warnings. As we do not have compatible Libertas USB hardware for exercising this firmware-download path, no runtime testing was able to be performed.

Announced Source revision 1
Original source ↗

CVE-2026-68410

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:CVE-2026-68410

Kernel

Source reference: /affected/1/package/name

Affected versions
Not stated in this record
Fixed versions
5.10.265

Source reference: /affected/1/ranges

5.15.216

Source reference: /affected/1/ranges

6.1.183

Source reference: /affected/1/ranges

6.6.148

Source reference: /affected/1/ranges

6.12.101

Source reference: /affected/1/ranges

6.18.42

Source reference: /affected/1/ranges

7.1.6

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
        "type": "GIT",
        "events": [
          {
            "introduced": "1dfba3060fe7ee03ccec25a91d35085142dfc295"
          },
          {
            "fixed": "6c1f54a04813676c5a2150d99331c8d21f199374"
          },
          {
            "fixed": "7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06"
          },
          {
            "fixed": "ce829286f4935f1eb6b5dcb64da02910ce149c76"
          },
          {
            "fixed": "d497b7566e74920acfe283dd6b2cbf1682890796"
          },
          {
            "fixed": "eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c"
          },
          {
            "fixed": "6cda91bbb8dc3d22ef0323008a12dcf73a5129da"
          },
          {
            "fixed": "644640cde2fb216e6567de5eee780a38dbc95928"
          },
          {
            "fixed": "63c2391deefb31e1b801b7f32bd502ca4808639b"
          }
        ]
      }
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68410.json"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "3.13.0"
          },
          {
            "fixed": "5.10.265"
          }
        ]
      },
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "5.11.0"
          },
          {
            "fixed": "5.15.216"
          }
        ]
      },
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "5.16.0"
          },
          {
            "fixed": "6.1.183"
          }
        ]
      },
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "6.2.0"
          },
          {
            "fixed": "6.6.148"
          }
        ]
      },
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "6.7.0"
          },
          {
            "fixed": "6.12.101"
          }
        ]
      },
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "6.13.0"
          },
          {
            "fixed": "6.18.42"
          }
        ]
      },
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "6.19.0"
          },
          {
            "fixed": "7.1.6"
          }
        ]
      }
    ],
    "package": {
      "name": "Kernel",
      "ecosystem": "Linux"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68410.json"
    }
  }
]
Related CVEs
CVE-2026-68410

Source reference: /id

Publisher severity

No explicit severity was provided.

Event
#50850 · Revision 1
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Publisher date
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