CVE-2021-46933 usb: gadget: f_fs: Clear ffs_eventfd in ffs_data_clear.

🗓️ 27 Feb 2024 09:44:00Reported by LinuxType

CVE-2021-46933 usb: gadget: f_fs vulnerability fi

Reporter	Title	Published	Views	Family All 274
ATTACKERKB	CVE-2021-46933	27 Feb 202410:15	–	attackerkb
AstraLinux	Astra Linux – Vulnerability in Linux, Linux 5.10	3 May 202623:59	–	astralinux
BDU FSTEC	The vulnerability of the ffs_data_clear() function in the Linux kernel’s gadget component, which allows a hacker to cause a service failure	21 Aug 202400:00	–	bdu_fstec
Circl	CVE-2021-46933	27 Feb 202411:32	–	circl
CNNVD	Linux kernel security vulnerabilities	27 Feb 202400:00	–	cnnvd
CVE	CVE-2021-46933	27 Feb 202409:44	–	cve
Debian CVE	CVE-2021-46933	27 Feb 202409:44	–	debiancve
EUVD	EUVD-2021-33581	3 Oct 202520:07	–	euvd
NVD	CVE-2021-46933	27 Feb 202410:15	–	nvd
OpenVAS	openSUSE Security Advisory (SUSE-SU-2024:1322-1)	19 Apr 202400:00	–	openvas

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/usb/gadget/function/f_fs.c"
    ],
    "versions": [
      {
        "version": "5e33f6fdf735cda1d4580fe6f1878da05718fe73",
        "lessThan": "f976dd7011150244a7ba820f2c331e9fb253befa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5e33f6fdf735cda1d4580fe6f1878da05718fe73",
        "lessThan": "cc8c8028c21b2a3842a1e98e99e55028df275919",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5e33f6fdf735cda1d4580fe6f1878da05718fe73",
        "lessThan": "52500239e3f2d6fc77b6f58632a9fb98fe74ac09",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5e33f6fdf735cda1d4580fe6f1878da05718fe73",
        "lessThan": "33f6a0cbb7772146e1c11f38028fffbfed14728b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5e33f6fdf735cda1d4580fe6f1878da05718fe73",
        "lessThan": "240fc586e83d645912accce081a48aa63a45f6ee",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5e33f6fdf735cda1d4580fe6f1878da05718fe73",
        "lessThan": "1c4ace3e6b8575745c50dca9e76e0021e697d645",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5e33f6fdf735cda1d4580fe6f1878da05718fe73",
        "lessThan": "ebef2aa29f370b5096c16020c104e393192ef684",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5e33f6fdf735cda1d4580fe6f1878da05718fe73",
        "lessThan": "b1e0887379422975f237d43d8839b751a6bcf154",
        "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/usb/gadget/function/f_fs.c"
    ],
    "versions": [
      {
        "version": "4.0",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.0",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.4.298",
        "lessThanOrEqual": "4.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.9.296",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.14.261",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.224",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.170",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.90",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.13",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.16",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/33f6a0cbb7772146e1c11f38028fffbfed14728b
git	www.git.kernel.org/stable/c/240fc586e83d645912accce081a48aa63a45f6ee
git	www.git.kernel.org/stable/c/1c4ace3e6b8575745c50dca9e76e0021e697d645
git	www.git.kernel.org/stable/c/ebef2aa29f370b5096c16020c104e393192ef684
git	www.git.kernel.org/stable/c/b1e0887379422975f237d43d8839b751a6bcf154
git	www.git.kernel.org/stable/c/52500239e3f2d6fc77b6f58632a9fb98fe74ac09
git	www.git.kernel.org/stable/c/f976dd7011150244a7ba820f2c331e9fb253befa
git	www.git.kernel.org/stable/c/cc8c8028c21b2a3842a1e98e99e55028df275919

11 May 2026 13:44Current

6.3Medium risk

Vulners AI Score6.3

EPSS0.00233