github - ghsa-j3fw-w5gf-rpg8

GHSA-J3FW-W5GF-RPG8

Vulnerability from github – Published: 2025-12-24 12:30 – Updated: 2025-12-24 12:30

Details

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

bpf: Fix exclusive map memory leak

When excl_prog_hash is 0 and excl_prog_hash_size is non-zero, the map also needs to be freed. Otherwise, the map memory will not be reclaimed, just like the memory leak problem reported by syzbot [1].

syzbot reported: BUG: memory leak backtrace (crc 7b9fb9b4): map_create+0x322/0x11e0 kernel/bpf/syscall.c:1512 __sys_bpf+0x3556/0x3610 kernel/bpf/syscall.c:6131

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{
  "affected": [],
  "aliases": [
    "CVE-2025-68355"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-24T11:15:58Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix exclusive map memory leak\n\nWhen excl_prog_hash is 0 and excl_prog_hash_size is non-zero, the map also\nneeds to be freed. Otherwise, the map memory will not be reclaimed, just\nlike the memory leak problem reported by syzbot [1].\n\nsyzbot reported:\nBUG: memory leak\n  backtrace (crc 7b9fb9b4):\n    map_create+0x322/0x11e0 kernel/bpf/syscall.c:1512\n    __sys_bpf+0x3556/0x3610 kernel/bpf/syscall.c:6131",
  "id": "GHSA-j3fw-w5gf-rpg8",
  "modified": "2025-12-24T12:30:29Z",
  "published": "2025-12-24T12:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68355"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/688b745401ab16e2e1a3b504863f0a45fd345638"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f0022551745d72fc0e7bc8601234d690dee2178d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-68355 (GCVE-0-2025-68355)

Vulnerability from cvelistv5 – Published: 2025-12-24 10:32 – Updated: 2025-12-24 10:32

Title

bpf: Fix exclusive map memory leak

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix exclusive map memory leak When excl_prog_hash is 0 and excl_prog_hash_size is non-zero, the map also needs to be freed. Otherwise, the map memory will not be reclaimed, just like the memory leak problem reported by syzbot [1]. syzbot reported: BUG: memory leak backtrace (crc 7b9fb9b4): map_create+0x322/0x11e0 kernel/bpf/syscall.c:1512 __sys_bpf+0x3556/0x3610 kernel/bpf/syscall.c:6131

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/f0022551745d72fc0…
	https://git.kernel.org/stable/c/688b745401ab16e2e…

Impacted products

Vendor

Product

Version

Linux

Affected: baefdbdf6812e120c9fba9cfb101d3656f478026 , < f0022551745d72fc0e7bc8601234d690dee2178d (git)
Affected: baefdbdf6812e120c9fba9cfb101d3656f478026 , < 688b745401ab16e2e1a3b504863f0a45fd345638 (git)

Linux

Affected: 6.18
Unaffected: 0 , < 6.18 (semver)
Unaffected: 6.18.2 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc1 , ≤ * (original_commit_for_fix)

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  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/syscall.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
              "version": "baefdbdf6812e120c9fba9cfb101d3656f478026",
              "versionType": "git"
            },
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              "lessThan": "688b745401ab16e2e1a3b504863f0a45fd345638",
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              "versionType": "git"
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        },
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          "vendor": "Linux",
          "versions": [
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              "version": "6.18"
            },
            {
              "lessThan": "6.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
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      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.18",
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                },
                {
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        }
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      "providerMetadata": {
        "dateUpdated": "2025-12-24T10:32:45.505Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/f0022551745d72fc0e7bc8601234d690dee2178d"
        },
        {
          "url": "https://git.kernel.org/stable/c/688b745401ab16e2e1a3b504863f0a45fd345638"
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      ],
      "title": "bpf: Fix exclusive map memory leak",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68355",
    "datePublished": "2025-12-24T10:32:45.505Z",
    "dateReserved": "2025-12-16T14:48:05.300Z",
    "dateUpdated": "2025-12-24T10:32:45.505Z",
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-J3FW-W5GF-RPG8

CVE-2025-68355 (GCVE-0-2025-68355)

Tags

Sightings

Nomenclature