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CVE-2025-71270 (GCVE-0-2025-71270)

Vulnerability from cvelistv5 – Published: 2026-03-18 17:40 – Updated: 2026-05-11 21:57
VLAI
Title
LoongArch: Enable exception fixup for specific ADE subcode
Summary
In the Linux kernel, the following vulnerability has been resolved: LoongArch: Enable exception fixup for specific ADE subcode This patch allows the LoongArch BPF JIT to handle recoverable memory access errors generated by BPF_PROBE_MEM* instructions. When a BPF program performs memory access operations, the instructions it executes may trigger ADEM exceptions. The kernel’s built-in BPF exception table mechanism (EX_TYPE_BPF) will generate corresponding exception fixup entries in the JIT compilation phase; however, the architecture-specific trap handling function needs to proactively call the common fixup routine to achieve exception recovery. do_ade(): fix EX_TYPE_BPF memory access exceptions for BPF programs, ensure safe execution. Relevant test cases: illegal address access tests in module_attach and subprogs_extable of selftests/bpf.
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c , < 73ede654d9daa2ee41bdd17bc62946fc5a0258cb (git)
Affected: dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c , < c49a28068363f3dca439aa5fe4d3b1f8159809fe (git)
Affected: dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c , < c2ed4f71e9288f21d5c53ff790270758e60fa5f9 (git)
Affected: dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c , < 9bdc1ab5e4ce6f066119018d8f69631a46f9c5a0 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.6.124 , ≤ 6.6.* (semver)
Unaffected: 6.12.70 , ≤ 6.12.* (semver)
Unaffected: 6.18.10 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Enable exception fixup for specific ADE subcode\n\nThis patch allows the LoongArch BPF JIT to handle recoverable memory\naccess errors generated by BPF_PROBE_MEM* instructions.\n\nWhen a BPF program performs memory access operations, the instructions\nit executes may trigger ADEM exceptions. The kernel\u2019s built-in BPF\nexception table mechanism (EX_TYPE_BPF) will generate corresponding\nexception fixup entries in the JIT compilation phase; however, the\narchitecture-specific trap handling function needs to proactively call\nthe common fixup routine to achieve exception recovery.\n\ndo_ade(): fix EX_TYPE_BPF memory access exceptions for BPF programs,\nensure safe execution.\n\nRelevant test cases: illegal address access tests in module_attach and\nsubprogs_extable of selftests/bpf."
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    "datePublished": "2026-03-18T17:40:59.838Z",
    "dateReserved": "2026-03-17T09:08:18.458Z",
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El mecanismo de tabla de excepciones BPF integrado del kernel (EX_TYPE_BPF) generar\u00e1 entradas de correcci\u00f3n de excepciones correspondientes en la fase de compilaci\u00f3n JIT; sin embargo, la funci\u00f3n de manejo de trampas espec\u00edfica de la arquitectura necesita llamar proactivamente a la rutina de correcci\u00f3n com\u00fan para lograr la recuperaci\u00f3n de la excepci\u00f3n.\\n\\ndo_ade(): corrige las excepciones de acceso a memoria EX_TYPE_BPF para programas BPF, asegura la ejecuci\u00f3n segura.\\n\\nCasos de prueba relevantes: pruebas de acceso a direcciones ilegales en module_attach y subprogs_extable de selftests/bpf.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"arch/loongarch/kernel/traps.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c\",\"lessThan\":\"73ede654d9daa2ee41bdd17bc62946fc5a0258cb\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c\",\"lessThan\":\"c49a28068363f3dca439aa5fe4d3b1f8159809fe\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c\",\"lessThan\":\"c2ed4f71e9288f21d5c53ff790270758e60fa5f9\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c\",\"lessThan\":\"9bdc1ab5e4ce6f066119018d8f69631a46f9c5a0\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"arch/loongarch/kernel/traps.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.2\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.2\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.124\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.70\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.10\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.19\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.124\",\"matchCriteriaId\":\"76183B9F-CABE-4E21-A3E3-F0EBF99DC3C7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.70\",\"matchCriteriaId\":\"F3791390-0628-4808-99EF-1ED8ABF60933\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.18.10\",\"matchCriteriaId\":\"7156C23F-009E-4D05-838C-A2DA417B5B8D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"17B67AA7-40D6-4AFA-8459-F200F3D7CFD1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"C47E4CC9-C826-4FA9-B014-7FE3D9B318B2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"F71D92C0-C023-48BD-B3B6-70B638EEE298\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/73ede654d9daa2ee41bdd17bc62946fc5a0258cb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9bdc1ab5e4ce6f066119018d8f69631a46f9c5a0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c2ed4f71e9288f21d5c53ff790270758e60fa5f9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c49a28068363f3dca439aa5fe4d3b1f8159809fe\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-28T10:59:40+00:00",
      "cve": "CVE-2025-71270",
      "id": "CVE-2025-71270",
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      "title": "kernel: LoongArch: Enable exception fixup for specific ADE subcode",
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      "cve": "CVE-2025-71270",
      "id": "CVE-2025-71270",
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      "product_status:known_not_affected": "441",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-71270",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-71270.json",
      "version": "7"
    }
  }
}



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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.
  • 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.

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