CVE-2022-50819 udmabuf: Set ubuf->sg = NULL if the creation of sg table fails

🗓️ 30 Dec 2025 12:08:34Reported by LinuxType

CVE-2022-50819: udmabuf sets ubuf sg to NULL if sg table creation fails to prevent release crash.

Reporter	Title	Published	Views	Family All 301
AstraLinux	Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15	19 Jun 202611:10	–	astralinux
BDU FSTEC	The vulnerability of the `begin_cpu_udmabuf()` function in the `drivers/dma-buf/udmabuf.c` module of the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.	3 Feb 202600:00	–	bdu_fstec
CNNVD	Linux kernel 安全漏洞	30 Dec 202500:00	–	cnnvd
CVE	CVE-2022-50819	30 Dec 202512:08	–	cve
Debian CVE	CVE-2022-50819	30 Dec 202512:08	–	debiancve
EUVD	EUVD-2022-55879	30 Dec 202515:30	–	euvd
NVD	CVE-2022-50819	30 Dec 202513:15	–	nvd
OpenVAS	SUSE: Security Advisory (SUSE-SU-2026:0317-1)	2 Feb 202600:00	–	openvas
OpenVAS	SUSE: Security Advisory (SUSE-SU-2026:0617-1)	26 Feb 202600:00	–	openvas
OSV	CVE-2022-50819 udmabuf: Set ubuf->sg = NULL if the creation of sg table fails	30 Dec 202512:08	–	osv

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/dma-buf/udmabuf.c"
    ],
    "versions": [
      {
        "version": "284562e1f34874e267d4f499362c3816f8f6bc3f",
        "lessThan": "bbe2f6f90310b3a0b5de4e0dc022b36faabfd718",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "284562e1f34874e267d4f499362c3816f8f6bc3f",
        "lessThan": "dfbed8c92eb853929f4fa676ba493391dab47be4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "284562e1f34874e267d4f499362c3816f8f6bc3f",
        "lessThan": "fc285549f454c0f50f87ec945fc0bf44719c0fa4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "284562e1f34874e267d4f499362c3816f8f6bc3f",
        "lessThan": "9861e43f097a50678041f973347b3a88f2da09cf",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "284562e1f34874e267d4f499362c3816f8f6bc3f",
        "lessThan": "d9c04a1b7a15b5e74b2977461d9511e497f05d8f",
        "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-buf/udmabuf.c"
    ],
    "versions": [
      {
        "version": "5.6",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.6",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.150",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.75",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.19.17",
        "lessThanOrEqual": "5.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.0.3",
        "lessThanOrEqual": "6.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/9861e43f097a50678041f973347b3a88f2da09cf
git	www.git.kernel.org/stable/c/bbe2f6f90310b3a0b5de4e0dc022b36faabfd718
git	www.git.kernel.org/stable/c/fc285549f454c0f50f87ec945fc0bf44719c0fa4
git	www.git.kernel.org/stable/c/d9c04a1b7a15b5e74b2977461d9511e497f05d8f
git	www.git.kernel.org/stable/c/dfbed8c92eb853929f4fa676ba493391dab47be4

11 May 2026 19:25Current

EPSS0.00201