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

Vulnerability from cvelistv5 – Published: 2026-08-10 12:02 – Updated: 2026-08-17 05:02
VLAI
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
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4ab17e762b34c847478f694932c4cd4b1ac2c343 , < f1557e0a64736b63aed24e285108a7bc3b7de294 (git)
Affected: 4ab17e762b34c847478f694932c4cd4b1ac2c343 , < 47e20d4b3da97ef3881d1e55e43545c22424f3fc (git)
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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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          "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"
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        },
        {
          "url": "https://git.kernel.org/stable/c/47e20d4b3da97ef3881d1e55e43545c22424f3fc"
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      ],
      "title": "LoongArch: BPF: Fix memory leak in bpf_jit_free()",
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    "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"
  },
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      "date": "2026-08-20",
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      "percentile": "0.05943"
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    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-08-11T15:34:22+00:00",
      "cve": "CVE-2026-68285",
      "id": "CVE-2026-68285",
      "initial_release_date": "2026-08-10T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: LoongArch: BPF: Fix memory leak in bpf_jit_free()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68285.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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