CVE-2021-46948 sfc: farch: fix TX queue lookup in TX event handling

🗓️ 27 Feb 2024 18:40:32Reported by LinuxType

Resolve vulnerability in Linux kernel TX event handlin

Reporter	Title	Published	Views	Family All 18
ATTACKERKB	CVE-2021-46948	27 Feb 202419:04	–	attackerkb
BDU FSTEC	Vulnerability of the efx_farch_handle_tx_event() function in the drivers/net/ethernet/sfc/farch.c module – a driver for supporting Ethernet network adapters in the Linux kernel, which allows an attacker to cause a service failure.	18 Mar 202500:00	–	bdu_fstec
Circl	CVE-2021-46948	28 Feb 202409:27	–	circl
CNNVD	Linux kernel security vulnerabilities	27 Feb 202400:00	–	cnnvd
CVE	CVE-2021-46948	27 Feb 202418:40	–	cve
Debian CVE	CVE-2021-46948	27 Feb 202418:40	–	debiancve
NVD	CVE-2021-46948	27 Feb 202419:04	–	nvd
OSV	DEBIAN-CVE-2021-46948	27 Feb 202419:04	–	osv
OSV	UBUNTU-CVE-2021-46948	27 Feb 202419:04	–	osv
Prion	Spoofing	27 Feb 202419:04	–	prion

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/ethernet/sfc/farch.c"
    ],
    "versions": [
      {
        "version": "12804793b17c0e19115a90d98f2f3df0cb79e233",
        "lessThan": "bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "12804793b17c0e19115a90d98f2f3df0cb79e233",
        "lessThan": "35c7a83ad1bb1d48ae249346e61b1132bcbf9052",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "12804793b17c0e19115a90d98f2f3df0cb79e233",
        "lessThan": "e531db1ea6f98c9612cb2de093a107c7eadfb96c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "12804793b17c0e19115a90d98f2f3df0cb79e233",
        "lessThan": "83b09a1807415608b387c7bc748d329fefc5617e",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/ethernet/sfc/farch.c"
    ],
    "versions": [
      {
        "version": "5.10",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.10",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.36",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.11.20",
        "lessThanOrEqual": "5.11.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.12.3",
        "lessThanOrEqual": "5.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.13",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/35c7a83ad1bb1d48ae249346e61b1132bcbf9052
git	www.git.kernel.org/stable/c/83b09a1807415608b387c7bc748d329fefc5617e
git	www.git.kernel.org/stable/c/e531db1ea6f98c9612cb2de093a107c7eadfb96c
git	www.git.kernel.org/stable/c/bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253

11 May 2026 13:44Current

5.5Medium risk

Vulners AI Score5.5

EPSS0.00222