CVE-2022-50858 mmc: alcor: fix return value check of mmc_add_host()

🗓️ 30 Dec 2025 12:15:32Reported by LinuxType

Fix memory leak by checking mmc_add_host return value and freeing host in the error path.

Reporter	Title	Published	Views	Family All 297
AstraLinux	Astra Linux - уязвимость в linux-5.10, linux	20 May 202605:53	–	astralinux
CNNVD	Linux kernel 安全漏洞	30 Dec 202500:00	–	cnnvd
CVE	CVE-2022-50858	30 Dec 202512:15	–	cve
Debian CVE	CVE-2022-50858	30 Dec 202512:15	–	debiancve
EUVD	EUVD-2022-55840	30 Dec 202515:30	–	euvd
NVD	CVE-2022-50858	30 Dec 202513:16	–	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-2022-50858 mmc: alcor: fix return value check of mmc_add_host()	30 Dec 202512:15	–	osv
OSV	DEBIAN-CVE-2022-50858	30 Dec 202513:16	–	osv

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/mmc/host/alcor.c"
    ],
    "versions": [
      {
        "version": "c5413ad815a675b5c98a002353d8e96b44b164e9",
        "lessThan": "289c964fe182ce755044a6cd57698072e12ffa6f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c5413ad815a675b5c98a002353d8e96b44b164e9",
        "lessThan": "4a6e5d0222804a3eaf2ea4cf893f412e7cf98cb2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c5413ad815a675b5c98a002353d8e96b44b164e9",
        "lessThan": "29c5b4da41f35108136d843c7432885c78cf8272",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c5413ad815a675b5c98a002353d8e96b44b164e9",
        "lessThan": "48dc06333d75f41c2ce9ba954bc3231324b45914",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c5413ad815a675b5c98a002353d8e96b44b164e9",
        "lessThan": "60fafcf2fb7ee9a4125dc9a86eeb9d490acf23e2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c5413ad815a675b5c98a002353d8e96b44b164e9",
        "lessThan": "e93d1468f429475a753d6baa79b853b7ee5ef8c0",
        "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/mmc/host/alcor.c"
    ],
    "versions": [
      {
        "version": "5.0",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.0",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.229",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.163",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.86",
        "lessThanOrEqual": "5.15.*",
        "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/289c964fe182ce755044a6cd57698072e12ffa6f
git	www.git.kernel.org/stable/c/4a6e5d0222804a3eaf2ea4cf893f412e7cf98cb2
git	www.git.kernel.org/stable/c/29c5b4da41f35108136d843c7432885c78cf8272
git	www.git.kernel.org/stable/c/e93d1468f429475a753d6baa79b853b7ee5ef8c0
git	www.git.kernel.org/stable/c/60fafcf2fb7ee9a4125dc9a86eeb9d490acf23e2
git	www.git.kernel.org/stable/c/48dc06333d75f41c2ce9ba954bc3231324b45914

11 May 2026 19:26Current

EPSS0.0004