Vulnerability-Lookup

GHSA-94HW-5J8J-HWQ4

Vulnerability from github – Published: 2026-09-17 18:32 – Updated: 2026-09-17 18:32

Details

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

riscv, 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.

Fix this by adding the missing kfree(jit_data->ctx.offset) in bpf_jit_free().

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{
  "affected": [],
  "aliases": [
    "CVE-2026-92519"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-17T17:17:54Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv, 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\nand calls bpf_jit_free() to clean up the first subprogram. However,\nbpf_jit_free() fails to free jit_data-\u003ectx.offset, which causes a\nmemory leak of the JIT context offsets array.\n\nFix this by adding the missing kfree(jit_data-\u003ectx.offset) in\nbpf_jit_free().",
  "id": "GHSA-94hw-5j8j-hwq4",
  "modified": "2026-09-17T18:32:07Z",
  "published": "2026-09-17T18:32:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92519"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a3a29e90021806ea00527f6458cfd2edb58b42a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/369e4635d04801f394d5bd42556f21029e95ff93"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5cadc66b534fe8140441916200a20c7efb06a388"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b594c23f584ab032a5eae809eee81b809dd27330"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-92519 (GCVE-0-2026-92519)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:10 – Updated: 2026-09-17 16:10

Title

riscv, bpf: Fix memory leak in bpf_jit_free

Summary

In the Linux kernel, the following vulnerability has been resolved: riscv, 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. Fix this by adding the missing kfree(jit_data->ctx.offset) in bpf_jit_free().

Severity

No CVSS data available.

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/b594c23f584ab032a…
https://git.kernel.org/stable/c/5cadc66b534fe8140…
https://git.kernel.org/stable/c/2a3a29e90021806ea…
https://git.kernel.org/stable/c/369e4635d04801f39…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 48a8f78c50bd6f7f08fd40daa62252fd043f2f18 , < b594c23f584ab032a5eae809eee81b809dd27330 (git) Affected: 48a8f78c50bd6f7f08fd40daa62252fd043f2f18 , < 5cadc66b534fe8140441916200a20c7efb06a388 (git) Affected: 48a8f78c50bd6f7f08fd40daa62252fd043f2f18 , < 2a3a29e90021806ea00527f6458cfd2edb58b42a (git) Affected: 48a8f78c50bd6f7f08fd40daa62252fd043f2f18 , < 369e4635d04801f394d5bd42556f21029e95ff93 (git)
Linux	Linux	Affected: 6.6 Unaffected: 0 , < 6.6 (semver) Unaffected: 6.12.110 , ≤ 6.12.* (semver) Unaffected: 6.18.52 , ≤ 6.18.* (semver) Unaffected: 7.2.6 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

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{
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        {
          "defaultStatus": "unaffected",
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          "programFiles": [
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              "versionType": "git"
            },
            {
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              "version": "48a8f78c50bd6f7f08fd40daa62252fd043f2f18",
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          "versions": [
            {
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              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
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              "versionType": "semver"
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            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
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              "versionType": "original_commit_for_fix"
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    "dateReserved": "2026-09-16T12:21:13.874Z",
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}

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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