CVE-2025-71203 (GCVE-0-2025-71203)

Vulnerability from cvelistv5 – Published: 2026-02-14 16:27 – Updated: 2026-02-16 08:58
VLAI?
Title
riscv: Sanitize syscall table indexing under speculation
Summary
In the Linux kernel, the following vulnerability has been resolved: riscv: Sanitize syscall table indexing under speculation The syscall number is a user-controlled value used to index into the syscall table. Use array_index_nospec() to clamp this value after the bounds check to prevent speculative out-of-bounds access and subsequent data leakage via cache side channels.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: f0bddf50586da81360627a772be0e355b62f071e , < c45848936ebdb4fcab92f8c39510db83c16d0239 (git)
Affected: f0bddf50586da81360627a772be0e355b62f071e , < 8b44e753795107a22ba31495686e83f4aca48f36 (git)
Affected: f0bddf50586da81360627a772be0e355b62f071e , < 25fd7ee7bf58ac3ec7be3c9f82ceff153451946c (git)
Create a notification for this product.
    Linux Linux Affected: 6.4
Unaffected: 0 , < 6.4 (semver)
Unaffected: 6.12.70 , ≤ 6.12.* (semver)
Unaffected: 6.18.10 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/riscv/kernel/traps.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c45848936ebdb4fcab92f8c39510db83c16d0239",
              "status": "affected",
              "version": "f0bddf50586da81360627a772be0e355b62f071e",
              "versionType": "git"
            },
            {
              "lessThan": "8b44e753795107a22ba31495686e83f4aca48f36",
              "status": "affected",
              "version": "f0bddf50586da81360627a772be0e355b62f071e",
              "versionType": "git"
            },
            {
              "lessThan": "25fd7ee7bf58ac3ec7be3c9f82ceff153451946c",
              "status": "affected",
              "version": "f0bddf50586da81360627a772be0e355b62f071e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/riscv/kernel/traps.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "lessThan": "6.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.70",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.70",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.10",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: Sanitize syscall table indexing under speculation\n\nThe syscall number is a user-controlled value used to index into the\nsyscall table. Use array_index_nospec() to clamp this value after the\nbounds check to prevent speculative out-of-bounds access and subsequent\ndata leakage via cache side channels."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-16T08:58:40.050Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c45848936ebdb4fcab92f8c39510db83c16d0239"
        },
        {
          "url": "https://git.kernel.org/stable/c/8b44e753795107a22ba31495686e83f4aca48f36"
        },
        {
          "url": "https://git.kernel.org/stable/c/25fd7ee7bf58ac3ec7be3c9f82ceff153451946c"
        }
      ],
      "title": "riscv: Sanitize syscall table indexing under speculation",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-71203",
    "datePublished": "2026-02-14T16:27:02.513Z",
    "dateReserved": "2026-01-31T11:36:51.194Z",
    "dateUpdated": "2026-02-16T08:58:40.050Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.