Common Weakness Enumeration

CWE-401

Allowed

Missing Release of Memory after Effective Lifetime

Abstraction: Variant · Status: Draft

API response cwe.mitre.org

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

2173 vulnerabilities reference this CWE, most recent first.

GHSA-M9C8-445C-MWFR

Vulnerability from github – Published: 2025-09-18 15:30 – Updated: 2025-12-11 21:31
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

mm/mempolicy: fix memory leak in set_mempolicy_home_node system call

When encountering any vma in the range with policy other than MPOL_BIND or MPOL_PREFERRED_MANY, an error is returned without issuing a mpol_put on the policy just allocated with mpol_dup().

This allows arbitrary users to leak kernel memory.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2022-50391"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-18T14:15:38Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/mempolicy: fix memory leak in set_mempolicy_home_node system call\n\nWhen encountering any vma in the range with policy other than MPOL_BIND or\nMPOL_PREFERRED_MANY, an error is returned without issuing a mpol_put on\nthe policy just allocated with mpol_dup().\n\nThis allows arbitrary users to leak kernel memory.",
  "id": "GHSA-m9c8-445c-mwfr",
  "modified": "2025-12-11T21:31:26Z",
  "published": "2025-09-18T15:30:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50391"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0ce4cc6d269ddc448a825955b495f662f5d9e153"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/38ce7c9bdfc228c14d7621ba36d3eebedd9d4f76"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ca0eb6b2f3add8c5daefb726ce57dc95d103d33"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-MC2X-3VPX-WFRG

Vulnerability from github – Published: 2025-10-04 18:31 – Updated: 2026-02-06 15:30
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: ath11k: fix memory leak in WMI firmware stats

Memory allocated for firmware pdev, vdev and beacon statistics are not released during rmmod.

Fix it by calling ath11k_fw_stats_free() function before hardware unregister.

While at it, avoid calling ath11k_fw_stats_free() while processing the firmware stats received in the WMI event because the local list is getting spliced and reinitialised and hence there are no elements in the list after splicing.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2023-53602"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-04T16:15:56Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: fix memory leak in WMI firmware stats\n\nMemory allocated for firmware pdev, vdev and beacon statistics\nare not released during rmmod.\n\nFix it by calling ath11k_fw_stats_free() function before hardware\nunregister.\n\nWhile at it, avoid calling ath11k_fw_stats_free() while processing\nthe firmware stats received in the WMI event because the local list\nis getting spliced and reinitialised and hence there are no elements\nin the list after splicing.\n\nTested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1",
  "id": "GHSA-mc2x-3vpx-wfrg",
  "modified": "2026-02-06T15:30:59Z",
  "published": "2025-10-04T18:31:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53602"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/55248d36beb79d3a61c9fb3122dc377fff523c89"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6aafa1c2d3e3fea2ebe84c018003f2a91722e607"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/86f9330a49d1464849482298dd34d361859183eb"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-MCF4-JWP6-459X

Vulnerability from github – Published: 2022-05-24 19:03 – Updated: 2022-05-24 19:03
VLAI
Details

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak is affected by: memory leak in the link_filter_inouts function in libavfilter/graphparser.c.

Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2020-22042"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-06-01T20:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak is affected by: memory leak in the link_filter_inouts function in libavfilter/graphparser.c.",
  "id": "GHSA-mcf4-jwp6-459x",
  "modified": "2022-05-24T19:03:41Z",
  "published": "2022-05-24T19:03:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-22042"
    },
    {
      "type": "WEB",
      "url": "https://trac.ffmpeg.org/ticket/8267"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-4998"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-MCF6-VHP9-G7JR

Vulnerability from github – Published: 2026-05-11 18:31 – Updated: 2026-08-11 15:31
VLAI
Details

Vulnerability in Wikimedia Foundation Scribunto.

This issue affects Scribunto: from 1.45.0 before 1.45.2.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2.3 (Low)
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-34089"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401",
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-11T16:17:30Z",
    "severity": "LOW"
  },
  "details": "Vulnerability in Wikimedia Foundation Scribunto.\n\nThis issue affects Scribunto: from 1.45.0 before 1.45.2.",
  "id": "GHSA-mcf6-vhp9-g7jr",
  "modified": "2026-08-11T15:31:30Z",
  "published": "2026-05-11T18:31:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34089"
    },
    {
      "type": "WEB",
      "url": "https://phabricator.wikimedia.org/T419168"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-MCXF-4RJ7-VPF7

Vulnerability from github – Published: 2022-05-24 17:47 – Updated: 2022-05-24 17:47
VLAI
Details

Memory leak in the stbl_GetSampleInfos function in MP4Box in GPAC 1.0.1 allows attackers to read memory via a crafted file.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2021-31256"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119",
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-04-19T19:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Memory leak in the stbl_GetSampleInfos function in MP4Box in GPAC 1.0.1 allows attackers to read memory via a crafted file.",
  "id": "GHSA-mcxf-4rj7-vpf7",
  "modified": "2022-05-24T17:47:51Z",
  "published": "2022-05-24T17:47:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-31256"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gpac/gpac/issues/1705"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gpac/gpac/commit/2da2f68bffd51d89b1d272d22aa8cc023c1c066e"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-MF2Q-G3W5-QQ7R

Vulnerability from github – Published: 2024-10-08 18:33 – Updated: 2025-02-27 21:31
VLAI
Details

Due to a memory leak, a denial-of-service vulnerability exists in the Rockwell Automation affected products. A malicious actor could exploit this vulnerability by performing multiple actions on certain web pages of the product causing the affected products to become fully unavailable and require a power cycle to recover.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2024-8626"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-08T17:15:56Z",
    "severity": "HIGH"
  },
  "details": "Due to a memory leak, a denial-of-service vulnerability exists in the Rockwell Automation affected products. A malicious actor could exploit this vulnerability by performing multiple actions on certain web pages of the product causing the affected products to become fully unavailable and require a power cycle to recover.",
  "id": "GHSA-mf2q-g3w5-qq7r",
  "modified": "2025-02-27T21:31:58Z",
  "published": "2024-10-08T18:33:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-8626"
    },
    {
      "type": "WEB",
      "url": "https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1706.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-MF9Q-63R7-3J6H

Vulnerability from github – Published: 2024-08-21 09:31 – Updated: 2024-09-11 18:31
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

ixgbe: fix pci device refcount leak

As the comment of pci_get_domain_bus_and_slot() says, it returns a PCI device with refcount incremented, when finish using it, the caller must decrement the reference count by calling pci_dev_put().

In ixgbe_get_first_secondary_devfn() and ixgbe_x550em_a_has_mii(), pci_dev_put() is called to avoid leak.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2022-48896"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-21T07:15:05Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nixgbe: fix pci device refcount leak\n\nAs the comment of pci_get_domain_bus_and_slot() says, it\nreturns a PCI device with refcount incremented, when finish\nusing it, the caller must decrement the reference count by\ncalling pci_dev_put().\n\nIn ixgbe_get_first_secondary_devfn() and ixgbe_x550em_a_has_mii(),\npci_dev_put() is called to avoid leak.",
  "id": "GHSA-mf9q-63r7-3j6h",
  "modified": "2024-09-11T18:31:02Z",
  "published": "2024-08-21T09:31:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48896"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/112df4cd2b09acd64bcd18f5ef83ba5d07b34bf0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4c93422a54cd6a349988f42e1c6bf082cf4ea9d8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/53cefa802f070d46c0c518f4865be2c749818a18"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b93fb4405fcb5112c5739c5349afb52ec7f15c07"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c49996c6aa03590e4ef5add8772cb6068d99fd59"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-MFM8-5JQR-JW5C

Vulnerability from github – Published: 2026-07-15 12:32 – Updated: 2026-07-15 12:32
VLAI
Details

ImageMagick before 7.1.2-26 contains a memory leak vulnerability in the TIFF encoder when memory allocation fails. Attackers can trigger allocation failures during TIFF image processing to cause memory exhaustion and denial of service.

Severity
2.9 (Low)
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
2.1 (Low)
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-61867"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-15T12:18:21Z",
    "severity": "LOW"
  },
  "details": "ImageMagick before 7.1.2-26 contains a memory leak vulnerability in the TIFF encoder when memory allocation fails. Attackers can trigger allocation failures during TIFF image processing to cause memory exhaustion and denial of service.",
  "id": "GHSA-mfm8-5jqr-jw5c",
  "modified": "2026-07-15T12:32:05Z",
  "published": "2026-07-15T12:32:05Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-jfq9-q63x-rc63"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-61867"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/imagemagick-before-26-memory-leak-in-tiff-encoder-2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-MFRF-WPM5-GV78

Vulnerability from github – Published: 2025-07-11 18:30 – Updated: 2025-07-11 18:30
VLAI
Details

A Missing Release of Memory after Effective Lifetime vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low privileged user to cause an impact to the availability of the device.

When RIB sharding is enabled and a user executes one of several routing related 'show' commands, a certain amount of memory is leaked. When all available memory has been consumed rpd will crash and restart.

The leak can be monitored with the CLI command:

show task memory detail | match task_shard_mgmt_cookie

where the allocated memory in bytes can be seen to continuously increase with each exploitation.

This issue affects:

Junos OS:

  • all versions before 21.2R3-S9,
  • 21.4 versions before 21.4R3-S11,
  • 22.2 versions before 22.2R3-S7,
  • 22.4 versions before 22.4R3-S7,
  • 23.2 versions before 23.2R2-S4, 
  • 23.4 versions before 23.4R2-S4,
  • 24.2 versions before 24.2R2,
  • 24.4 versions before 24.4R1-S2, 24.4R2;

Junos OS Evolved:

  • all versions before 22.2R3-S7-EVO
  • 22.4-EVO versions before 22.4R3-S7-EVO,
  • 23.2-EVO versions before 23.2R2-S4-EVO,
  • 23.4-EVO versions before 23.4R2-S4-EVO,
  • 24.2-EVO versions before 24.2R2-EVO, 
  • 24.4-EVO versions before 24.4R2-EVO.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-52986"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-11T16:15:26Z",
    "severity": "MODERATE"
  },
  "details": "A Missing Release of Memory after Effective Lifetime vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low privileged user to cause an impact to the availability of the device.\n\nWhen RIB sharding is enabled and a user executes one of several routing related \u0027show\u0027 commands, a certain amount of memory is leaked. When all available memory has been consumed rpd will crash and restart.\n\nThe leak can be monitored with the CLI command:\n\n\n\nshow task memory detail | match task_shard_mgmt_cookie\n\n\n\nwhere the allocated memory in bytes can be seen to continuously increase with each exploitation.\n\n\n\nThis issue affects:\n\nJunos OS:\n\n  *  all versions before 21.2R3-S9,\n  *  21.4 versions before 21.4R3-S11,\n  *  22.2 versions before 22.2R3-S7,\n  *  22.4 versions before 22.4R3-S7,\n  *  23.2 versions before 23.2R2-S4,\u00a0\n  *  23.4 versions before 23.4R2-S4,\n  *  24.2 versions before 24.2R2,\n  *  24.4 versions before 24.4R1-S2, 24.4R2;\n\n\nJunos OS Evolved:\n\n  *  all versions before 22.2R3-S7-EVO\n  *  22.4-EVO versions before 22.4R3-S7-EVO,\n  *  23.2-EVO versions before 23.2R2-S4-EVO,\n  *  23.4-EVO versions before 23.4R2-S4-EVO,\n  *  24.2-EVO versions before 24.2R2-EVO,\u00a0\n  *  24.4-EVO versions before 24.4R2-EVO.",
  "id": "GHSA-mfrf-wpm5-gv78",
  "modified": "2025-07-11T18:30:33Z",
  "published": "2025-07-11T18:30:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-52986"
    },
    {
      "type": "WEB",
      "url": "https://supportportal.juniper.net/JSA100092"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:X/RE:M/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-MFVG-PVV5-35G8

Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-19 15:31
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak

For some sev ioctl interfaces, input may be passed that is less than or equal to SEV_FW_BLOB_MAX_SIZE, but larger than the data that PSP firmware returns. In this case, kmalloc will allocate memory that is the size of the input rather than the size of the data. Since PSP firmware doesn't fully overwrite the buffer, the sev ioctl interfaces with the issue may return uninitialized slab memory.

Currently, all of the ioctl interfaces in the ccp driver are safe, but to prevent future problems, change all ioctl interfaces that allocate memory with kmalloc to use kzalloc and memset the data buffer to zero in sev_ioctl_do_platform_status.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2022-50226"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:53Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak\n\nFor some sev ioctl interfaces, input may be passed that is less than or\nequal to SEV_FW_BLOB_MAX_SIZE, but larger than the data that PSP\nfirmware returns. In this case, kmalloc will allocate memory that is the\nsize of the input rather than the size of the data. Since PSP firmware\ndoesn\u0027t fully overwrite the buffer, the sev ioctl interfaces with the\nissue may return uninitialized slab memory.\n\nCurrently, all of the ioctl interfaces in the ccp driver are safe, but\nto prevent future problems, change all ioctl interfaces that allocate\nmemory with kmalloc to use kzalloc and memset the data buffer to zero\nin sev_ioctl_do_platform_status.",
  "id": "GHSA-mfvg-pvv5-35g8",
  "modified": "2025-11-19T15:31:31Z",
  "published": "2025-06-18T12:30:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50226"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/13dc15a3f5fd7f884e4bfa8c011a0ae868df12ae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4c5300f6f5e18b11c02a92f136e69b98fddba15e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/caa395aa16e7c9193fd7fa6cde462dd8229d4953"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e11fb0a3a39bb42da35fa662c46ce7391f277436"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f2a920daa780956b987c14b9f23de7c3c8915bf2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}
Mitigation MIT-41
Implementation

Strategy: Libraries or Frameworks

  • Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone.
  • For example, glibc in Linux provides protection against free of invalid pointers.
  • When using Xcode to target OS X or iOS, enable automatic reference counting (ARC) [REF-391].
  • To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std::auto_ptr (defined by ISO/IEC ISO/IEC 14882:2003), std::shared_ptr and std::unique_ptr (specified by an upcoming revision of the C++ standard, informally referred to as C++ 1x), or equivalent solutions such as Boost.
Mitigation
Architecture and Design

Use an abstraction library to abstract away risky APIs. Not a complete solution.

Mitigation
Architecture and Design Build and Compilation

Consider using the Boehm-Demers-Weiser garbage collector (bdwgc), which can help avoid leaks.

No CAPEC attack patterns related to this CWE.

← Back to the CWE list