github - ghsa-c8r4-j2q4-mjgj

ghsa-c8r4-j2q4-mjgj

Vulnerability from github

Published

2025-05-01 15:31

Modified

2025-05-01 15:31

Details

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

bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE

When using bpftool to pin {PROG, MAP, LINK} without FILE, segmentation fault will occur. The reson is that the lack of FILE will cause strlen to trigger NULL pointer dereference. The corresponding stacktrace is shown below:

do_pin do_pin_any do_pin_fd mount_bpffs_for_pin strlen(name) <- NULL pointer dereference

Fix it by adding validation to the common process.

Show details on source website

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2022-49875"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-01T15:16:12Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE\n\nWhen using bpftool to pin {PROG, MAP, LINK} without FILE,\nsegmentation fault will occur. The reson is that the lack\nof FILE will cause strlen to trigger NULL pointer dereference.\nThe corresponding stacktrace is shown below:\n\ndo_pin\n  do_pin_any\n    do_pin_fd\n      mount_bpffs_for_pin\n        strlen(name) \u003c- NULL pointer dereference\n\nFix it by adding validation to the common process.",
  "id": "GHSA-c8r4-j2q4-mjgj",
  "modified": "2025-05-01T15:31:51Z",
  "published": "2025-05-01T15:31:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49875"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/34de8e6e0e1f66e431abf4123934a2581cb5f133"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6dcdd1b68b7f9333d48d48fc77b75e7f235f6a4a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8c80b2fca4112d724dde477aed13f7b0510a2792"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da5161ba94c5e9182c301dd4f09c94f715c068bd"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2022-49875

Vulnerability from cvelistv5

Published

2025-05-01 14:10

Modified

2025-05-01 14:10

Severity ?

Summary

bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE

References

▼	URL	Tags
	https://git.kernel.org/stable/c/8c80b2fca4112d724dde477aed13f7b0510a2792
	https://git.kernel.org/stable/c/6dcdd1b68b7f9333d48d48fc77b75e7f235f6a4a
	https://git.kernel.org/stable/c/da5161ba94c5e9182c301dd4f09c94f715c068bd
	https://git.kernel.org/stable/c/34de8e6e0e1f66e431abf4123934a2581cb5f133

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "tools/bpf/bpftool/common.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8c80b2fca4112d724dde477aed13f7b0510a2792",
              "status": "affected",
              "version": "75a1e792c335b5c6d7fdb1014da47aeb64c5944f",
              "versionType": "git"
            },
            {
              "lessThan": "6dcdd1b68b7f9333d48d48fc77b75e7f235f6a4a",
              "status": "affected",
              "version": "75a1e792c335b5c6d7fdb1014da47aeb64c5944f",
              "versionType": "git"
            },
            {
              "lessThan": "da5161ba94c5e9182c301dd4f09c94f715c068bd",
              "status": "affected",
              "version": "75a1e792c335b5c6d7fdb1014da47aeb64c5944f",
              "versionType": "git"
            },
            {
              "lessThan": "34de8e6e0e1f66e431abf4123934a2581cb5f133",
              "status": "affected",
              "version": "75a1e792c335b5c6d7fdb1014da47aeb64c5944f",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "tools/bpf/bpftool/common.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.7"
            },
            {
              "lessThan": "5.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.155",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.79",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE\n\nWhen using bpftool to pin {PROG, MAP, LINK} without FILE,\nsegmentation fault will occur. The reson is that the lack\nof FILE will cause strlen to trigger NULL pointer dereference.\nThe corresponding stacktrace is shown below:\n\ndo_pin\n  do_pin_any\n    do_pin_fd\n      mount_bpffs_for_pin\n        strlen(name) \u003c- NULL pointer dereference\n\nFix it by adding validation to the common process."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-01T14:10:24.427Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8c80b2fca4112d724dde477aed13f7b0510a2792"
        },
        {
          "url": "https://git.kernel.org/stable/c/6dcdd1b68b7f9333d48d48fc77b75e7f235f6a4a"
        },
        {
          "url": "https://git.kernel.org/stable/c/da5161ba94c5e9182c301dd4f09c94f715c068bd"
        },
        {
          "url": "https://git.kernel.org/stable/c/34de8e6e0e1f66e431abf4123934a2581cb5f133"
        }
      ],
      "title": "bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE",
      "x_generator": {
        "engine": "bippy-1.1.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49875",
    "datePublished": "2025-05-01T14:10:24.427Z",
    "dateReserved": "2025-05-01T14:05:17.238Z",
    "dateUpdated": "2025-05-01T14:10:24.427Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Log in or create an account to share your comment.

Tags

Taxonomy of the tags.

All sightings related to this event Export sightings related to this event

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.