CVE-2021-47638

🗓️ 26 Feb 2025 01:54:11Reported by LinuxType

Fixed double free vulnerability in Linux kernel UBIFS rename operation for whiteout data

Reporter	Title	Published	Views	Family All 29
AstraLinux	Astra Linux - уязвимость в linux-5.10, linux	20 May 202605:53	–	astralinux
CNNVD	Linux kernel 安全漏洞	26 Feb 202500:00	–	cnnvd
Cvelist	CVE-2021-47638 ubifs: rename_whiteout: Fix double free for whiteout_ui->data	26 Feb 202501:54	–	cvelist
Debian CVE	CVE-2021-47638	26 Feb 202501:54	–	debiancve
EUVD	EUVD-2021-34666	3 Oct 202520:07	–	euvd
NVD	CVE-2021-47638	26 Feb 202506:37	–	nvd
OpenVAS	SUSE: Security Advisory (SUSE-SU-2025:1027-1)	28 Mar 202500:00	–	openvas
OpenVAS	SUSE: Security Advisory (SUSE-SU-2025:1241-1)	16 Apr 202500:00	–	openvas
OSV	DEBIAN-CVE-2021-47638	26 Feb 202506:37	–	osv
OSV	SUSE-SU-2025:1027-1 Security update for the Linux Kernel	26 Mar 202512:12	–	osv

NVD

Vulners

CNA

Node

linux linux_kernelRange4.9–4.14.276

linux linux_kernelRange4.15–4.19.238

linux linux_kernelRange4.20–5.4.189

linux linux_kernelRange5.5–5.10.110

linux linux_kernelRange5.11–5.15.33

linux linux_kernelRange5.16–5.16.19

linux linux_kernelRange5.17–5.17.2

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/ubifs/dir.c"
    ],
    "versions": [
      {
        "version": "9e0a1fff8db56eaaebb74b4a3ef65f86811c4798",
        "lessThan": "8b3c7be16f3f4dfd6e15ac651484e59d3fa36274",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9e0a1fff8db56eaaebb74b4a3ef65f86811c4798",
        "lessThan": "2b3236ecf96db7af5836e1366ce39ace8ce832fa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9e0a1fff8db56eaaebb74b4a3ef65f86811c4798",
        "lessThan": "14276d38c89a170363e90b6ac0a53c3cf61b87fc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9e0a1fff8db56eaaebb74b4a3ef65f86811c4798",
        "lessThan": "a90e2dbe66d2647ff95a0442ad2e86482d977fd8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9e0a1fff8db56eaaebb74b4a3ef65f86811c4798",
        "lessThan": "2ad07009c459e56ebdcc089d850d664660fdb742",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9e0a1fff8db56eaaebb74b4a3ef65f86811c4798",
        "lessThan": "b9a937f096e608b3368c1abc920d4d640ba2c94f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9e0a1fff8db56eaaebb74b4a3ef65f86811c4798",
        "lessThan": "6d7a158a7363c1f6604aa47ae1a280a5c65123dd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9e0a1fff8db56eaaebb74b4a3ef65f86811c4798",
        "lessThan": "40a8f0d5e7b3999f096570edab71c345da812e3e",
        "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/ubifs/dir.c"
    ],
    "versions": [
      {
        "version": "4.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.14.276",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.238",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.189",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.110",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.33",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.16.19",
        "lessThanOrEqual": "5.16.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.17.2",
        "lessThanOrEqual": "5.17.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.18",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/b9a937f096e608b3368c1abc920d4d640ba2c94f
git	www.git.kernel.org/stable/c/8b3c7be16f3f4dfd6e15ac651484e59d3fa36274
git	www.git.kernel.org/stable/c/14276d38c89a170363e90b6ac0a53c3cf61b87fc
git	www.git.kernel.org/stable/c/2ad07009c459e56ebdcc089d850d664660fdb742
git	www.git.kernel.org/stable/c/40a8f0d5e7b3999f096570edab71c345da812e3e
git	www.git.kernel.org/stable/c/6d7a158a7363c1f6604aa47ae1a280a5c65123dd
git	www.git.kernel.org/stable/c/a90e2dbe66d2647ff95a0442ad2e86482d977fd8
git	www.git.kernel.org/stable/c/2b3236ecf96db7af5836e1366ce39ace8ce832fa

11 May 2026 13:58Current

5.5Medium risk

Vulners AI Score5.5

CVSS 3.15.5

EPSS0.00026

SSVC

CWE-415