Vulnerability-Lookup

GHSA-5H94-R5C3-XC8M

Vulnerability from github – Published: 2026-08-10 15:33 – Updated: 2026-08-10 15:33

Details

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

LoongArch: BPF: Fix memory leak in bpf_jit_free()

When bpf_int_jit_compile() is called for subprograms, it returns early during the first pass (!prog->is_func || extra_pass is false), keeping ctx->offset alive for the subsequent extra pass.

If JIT compilation fails for a later subprogram, the BPF core aborts and calls bpf_jit_free() to clean up the first subprogram. However, bpf_jit_free() fails to free jit_data->ctx.offset, which causes a memory leak of the JIT context offsets array.

So fix this by adding the missing kvfree(jit_data->ctx.offset) in bpf_jit_free().

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{
  "affected": [],
  "aliases": [
    "CVE-2026-68285"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-10T13:20:17Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: BPF: Fix memory leak in bpf_jit_free()\n\nWhen bpf_int_jit_compile() is called for subprograms, it returns early\nduring the first pass (!prog-\u003eis_func || extra_pass is false), keeping\nctx-\u003eoffset alive for the subsequent extra pass.\n\nIf JIT compilation fails for a later subprogram, the BPF core aborts and\ncalls bpf_jit_free() to clean up the first subprogram. However,\nbpf_jit_free() fails to free jit_data-\u003ectx.offset, which causes a memory\nleak of the JIT context offsets array.\n\nSo fix this by adding the missing kvfree(jit_data-\u003ectx.offset) in\nbpf_jit_free().",
  "id": "GHSA-5h94-r5c3-xc8m",
  "modified": "2026-08-10T15:33:44Z",
  "published": "2026-08-10T15:33:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68285"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/47e20d4b3da97ef3881d1e55e43545c22424f3fc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f1557e0a64736b63aed24e285108a7bc3b7de294"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-68285 (GCVE-0-2026-68285)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:02 – Updated: 2026-08-17 05:02

Title

LoongArch: BPF: Fix memory leak in bpf_jit_free()

Summary

In the Linux kernel, the following vulnerability has been resolved: LoongArch: BPF: Fix memory leak in bpf_jit_free() When bpf_int_jit_compile() is called for subprograms, it returns early during the first pass (!prog->is_func || extra_pass is false), keeping ctx->offset alive for the subsequent extra pass. If JIT compilation fails for a later subprogram, the BPF core aborts and calls bpf_jit_free() to clean up the first subprogram. However, bpf_jit_free() fails to free jit_data->ctx.offset, which causes a memory leak of the JIT context offsets array. So fix this by adding the missing kvfree(jit_data->ctx.offset) in bpf_jit_free().

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/f1557e0a64736b63a…
https://git.kernel.org/stable/c/47e20d4b3da97ef38…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 4ab17e762b34c847478f694932c4cd4b1ac2c343 , < f1557e0a64736b63aed24e285108a7bc3b7de294 (git) Affected: 4ab17e762b34c847478f694932c4cd4b1ac2c343 , < 47e20d4b3da97ef3881d1e55e43545c22424f3fc (git)
Linux	Linux	Affected: 7.0 Unaffected: 0 , < 7.0 (semver) Unaffected: 7.1.6 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/loongarch/net/bpf_jit.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f1557e0a64736b63aed24e285108a7bc3b7de294",
              "status": "affected",
              "version": "4ab17e762b34c847478f694932c4cd4b1ac2c343",
              "versionType": "git"
            },
            {
              "lessThan": "47e20d4b3da97ef3881d1e55e43545c22424f3fc",
              "status": "affected",
              "version": "4ab17e762b34c847478f694932c4cd4b1ac2c343",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/loongarch/net/bpf_jit.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.0"
            },
            {
              "lessThan": "7.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.6",
                  "versionStartIncluding": "7.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "7.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: BPF: Fix memory leak in bpf_jit_free()\n\nWhen bpf_int_jit_compile() is called for subprograms, it returns early\nduring the first pass (!prog-\u003eis_func || extra_pass is false), keeping\nctx-\u003eoffset alive for the subsequent extra pass.\n\nIf JIT compilation fails for a later subprogram, the BPF core aborts and\ncalls bpf_jit_free() to clean up the first subprogram. However,\nbpf_jit_free() fails to free jit_data-\u003ectx.offset, which causes a memory\nleak of the JIT context offsets array.\n\nSo fix this by adding the missing kvfree(jit_data-\u003ectx.offset) in\nbpf_jit_free()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:02:20.327Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f1557e0a64736b63aed24e285108a7bc3b7de294"
        },
        {
          "url": "https://git.kernel.org/stable/c/47e20d4b3da97ef3881d1e55e43545c22424f3fc"
        }
      ],
      "title": "LoongArch: BPF: Fix memory leak in bpf_jit_free()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68285",
    "datePublished": "2026-08-10T12:02:18.074Z",
    "dateReserved": "2026-07-30T09:28:09.379Z",
    "dateUpdated": "2026-08-17T05:02:20.327Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

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GHSA-5H94-R5C3-XC8M

CVE-2026-68285 (GCVE-0-2026-68285)

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Sightings

Nomenclature