FKIE_CVE-2025-68355

Vulnerability from fkie_nvd - Published: 2025-12-24 11:15 - Updated: 2026-06-17 09:58
Severity
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
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/688b745401ab16e2e1a3b504863f0a45fd345638
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f0022551745d72fc0e7bc8601234d690dee2178d
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "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": [
            {
              "lessThan": "f0022551745d72fc0e7bc8601234d690dee2178d",
              "status": "affected",
              "version": "baefdbdf6812e120c9fba9cfb101d3656f478026",
              "versionType": "git"
            },
            {
              "lessThan": "688b745401ab16e2e1a3b504863f0a45fd345638",
              "status": "affected",
              "version": "baefdbdf6812e120c9fba9cfb101d3656f478026",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/syscall.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "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",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "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"
    }
  ],
  "id": "CVE-2025-68355",
  "lastModified": "2026-06-17T09:58:59.417",
  "metrics": {},
  "published": "2025-12-24T11:15:58.863",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/688b745401ab16e2e1a3b504863f0a45fd345638"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f0022551745d72fc0e7bc8601234d690dee2178d"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}


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