CVE-2021-46919 dmaengine: idxd: fix wq size store permission state

🗓️ 27 Feb 2024 06:53:56Reported by LinuxType

Fix permission issue for changing wq size in dmaengine: idxd

Reporter	Title	Published	Views	Family All 130
ATTACKERKB	CVE-2021-46919	27 Feb 202407:15	–	attackerkb
BDU FSTEC	The vulnerability of the idxd component in the Linux operating system’s kernel allows a hacker to execute arbitrary code.	22 Apr 202400:00	–	bdu_fstec
Circl	CVE-2021-46919	27 Feb 202408:32	–	circl
CNNVD	Linux kernel security vulnerabilities	27 Feb 202400:00	–	cnnvd
CVE	CVE-2021-46919	27 Feb 202406:53	–	cve
Debian CVE	CVE-2021-46919	27 Feb 202406:53	–	debiancve
NVD	CVE-2021-46919	27 Feb 202407:15	–	nvd
OpenVAS	openSUSE: Security Advisory for the Linux Kernel (SUSE-SU-2024:1489-1)	20 Aug 202400:00	–	openvas
OpenVAS	SUSE: Security Advisory (SUSE-SU-2024:1489-1)	13 Feb 202500:00	–	openvas
OSV	DEBIAN-CVE-2021-46919	27 Feb 202407:15	–	osv

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/dma/idxd/sysfs.c"
    ],
    "versions": [
      {
        "version": "c52ca478233c172b2d322b5241d6279a8661cbba",
        "lessThan": "4ecf25595273203010bc8318c4aee60ad64037ae",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c52ca478233c172b2d322b5241d6279a8661cbba",
        "lessThan": "05b7791c4c4aa8304368fdc55ae911f6b34e7281",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c52ca478233c172b2d322b5241d6279a8661cbba",
        "lessThan": "0fff71c5a311e1264988179f7dcc217fda15fadd",
        "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/dma/idxd/sysfs.c"
    ],
    "versions": [
      {
        "version": "5.6",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.6",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.32",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.11.16",
        "lessThanOrEqual": "5.11.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.12",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/05b7791c4c4aa8304368fdc55ae911f6b34e7281
git	www.git.kernel.org/stable/c/0fff71c5a311e1264988179f7dcc217fda15fadd
git	www.git.kernel.org/stable/c/4ecf25595273203010bc8318c4aee60ad64037ae

11 May 2026 13:44Current

5.6Medium risk

Vulners AI Score5.6

EPSS0.00222