CVE-2022-50811 erofs: fix missing unmap if z_erofs_get_extent_compressedlen() fails

🗓️ 30 Dec 2025 12:08:28Reported by LinuxType

Erofs fix to unmap on failure of z_erofs_get_extent_compressedlen to prevent meta buffer leaks.

Reporter	Title	Published	Views	Family All 20
AstraLinux	Astra Linux – Vulnerability in Linux 5.10	20 May 202605:53	–	astralinux
BDU FSTEC	The vulnerability of the `z_erofs_do_map_blocks()` function in the `fs/erofs/zmap.c` file of the EROFS Enhanced ReadOnly File System file system in the Linux operating system allows a hacker to trigger a service failure.	10 Jul 202600:00	–	bdu_fstec
Circl	CVE-2022-50811	19 Mar 202600:00	–	circl
CNNVD	Linux kernel 安全漏洞	30 Dec 202500:00	–	cnnvd
CVE	CVE-2022-50811	30 Dec 202512:08	–	cve
Debian CVE	CVE-2022-50811	30 Dec 202512:08	–	debiancve
EUVD	EUVD-2022-55887	30 Dec 202515:30	–	euvd
NVD	CVE-2022-50811	30 Dec 202513:15	–	nvd
OSV	CVE-2022-50811 erofs: fix missing unmap if z_erofs_get_extent_compressedlen() fails	30 Dec 202512:08	–	osv
OSV	DEBIAN-CVE-2022-50811	30 Dec 202513:15	–	osv

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/erofs/zmap.c"
    ],
    "versions": [
      {
        "version": "cec6e93beadfd145758af2c0854fcc2abb8170cb",
        "lessThan": "091a8ca572a2e48554427feda78aa503e98c1028",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cec6e93beadfd145758af2c0854fcc2abb8170cb",
        "lessThan": "373b6f350aecf5dca2e7474f0b4ec8cca659f2f0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cec6e93beadfd145758af2c0854fcc2abb8170cb",
        "lessThan": "d5d188b8f8b38d3d71dd05993874b4fc9284ce95",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/erofs/zmap.c"
    ],
    "versions": [
      {
        "version": "5.13",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.13",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.0.16",
        "lessThanOrEqual": "6.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.2",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/d5d188b8f8b38d3d71dd05993874b4fc9284ce95
git	www.git.kernel.org/stable/c/373b6f350aecf5dca2e7474f0b4ec8cca659f2f0
git	www.git.kernel.org/stable/c/091a8ca572a2e48554427feda78aa503e98c1028

11 May 2026 19:25Current

EPSS0.00198