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

Vulnerability from cvelistv5 – Published: 2025-12-24 10:32 – Updated: 2026-05-11 21:51
VLAI
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 CNA under the mitre root
CNA scorecard D 53/100 over 7061 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: baefdbdf6812e120c9fba9cfb101d3656f478026 , < f0022551745d72fc0e7bc8601234d690dee2178d (git)
Affected: baefdbdf6812e120c9fba9cfb101d3656f478026 , < 688b745401ab16e2e1a3b504863f0a45fd345638 (git)
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Linux Linux Affected: 6.18
Unaffected: 0 , < 6.18 (semver)
Unaffected: 6.18.2 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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      "affected": [
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          "product": "Linux",
          "programFiles": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
                },
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          "value": "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"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:51:36.018Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f0022551745d72fc0e7bc8601234d690dee2178d"
        },
        {
          "url": "https://git.kernel.org/stable/c/688b745401ab16e2e1a3b504863f0a45fd345638"
        }
      ],
      "title": "bpf: Fix exclusive map memory leak",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68355",
    "datePublished": "2025-12-24T10:32:45.505Z",
    "dateReserved": "2025-12-16T14:48:05.300Z",
    "dateUpdated": "2026-05-11T21:51:36.018Z",
    "state": "PUBLISHED"
  },
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      "date": "2026-10-23",
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      "percentile": "0.08583"
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    "nvd": {
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                "product": "Linux",
                "programFiles": [
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                ],
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                    "versionType": "git"
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                    "version": "0",
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            ],
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          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "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"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nbpf: Correcci\u00f3n de la fuga de memoria de mapa exclusivo\n\nCuando excl_prog_hash es 0 y excl_prog_hash_size no es cero, el mapa tambi\u00e9n necesita ser liberado. De lo contrario, la memoria del mapa no ser\u00e1 recuperada, al igual que el problema de fuga de memoria reportado por syzbot [1].\n\nsyzbot report\u00f3:\nBUG: fuga de memoria\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": "CVE-2025-68355",
        "lastModified": "2026-10-13T11:10:00.203",
        "metrics": {},
        "published": "2025-12-24T11:15:58.863",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/688b745401ab16e2e1a3b504863f0a45fd345638"
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            "url": "https://git.kernel.org/stable/c/f0022551745d72fc0e7bc8601234d690dee2178d"
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Deferred"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-30T10:20:49+00:00",
      "cve": "CVE-2025-68355",
      "id": "CVE-2025-68355",
      "initial_release_date": "2025-12-24T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: bpf: Fix exclusive map memory leak",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68355.json",
      "version": "3"
    }
  }
}



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