riscv: uprobes: Add missing fence.i after building the XOL buffer

{
  "id": "6d808284fe3ee94fdf7294f07b8ef9d0ade401e5c3537668caa8c927a739fab0",
  "url": "https://osv.dev/vulnerability/CVE-2025-37822",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "riscv: uprobes: Add missing fence.i after building the XOL buffer",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: riscv: uprobes: Add missing fence.i after building the XOL buffer The XOL (execute out-of-line) buffer is used to single-step the replaced instruction(s) for uprobes. The RISC-V port was missing a proper fence.i (i$ flushing) after constructing the XOL buffer, which can result in incorrect execution of stale/broken instructions. This was found running the BPF selftests \"test_progs: uprobe_autoattach, attach_probe\" on the Spacemit K1/X60, where the uprobes tests randomly blew up.",
    "evidence": "osv:CVE-2025-37822",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.200",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.163",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.121",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.26",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.14.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-37822",
      "aliases": [
        "CVE-2025-37822"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "introduced": "74784081aac8a0f3636965fc230e2d3b7cc123c6"
                },
                {
                  "fixed": "be6d98766ac952d38241d5a5b213f363afa421c3"
                },
                {
                  "fixed": "b6d8d4d01ca8514fa89b05355f296758a91e2297"
                },
                {
                  "fixed": "77c956152a3a7c7a18b68f3654f70565b2181d03"
                },
                {
                  "fixed": "bcf6d3158c5902d92b6d62335af4422b7bf7c4e2"
                },
                {
                  "fixed": "1dbb95a36499374c51b47ee8ae258a8862c20978"
                },
                {
                  "fixed": "7d1d19a11cfbfd8bae1d89cc010b2cc397cd0c48"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37822.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.12.0"
                },
                {
                  "fixed": "5.15.200"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.163"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
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                {
                  "fixed": "6.6.121"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
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                {
                  "fixed": "6.12.26"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.14.5"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37822.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.579422379Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1dbb95a36499374c51b47ee8ae258a8862c20978",
        "https://git.kernel.org/stable/c/77c956152a3a7c7a18b68f3654f70565b2181d03",
        "https://git.kernel.org/stable/c/7d1d19a11cfbfd8bae1d89cc010b2cc397cd0c48",
        "https://git.kernel.org/stable/c/b6d8d4d01ca8514fa89b05355f296758a91e2297",
        "https://git.kernel.org/stable/c/bcf6d3158c5902d92b6d62335af4422b7bf7c4e2",
        "https://git.kernel.org/stable/c/be6d98766ac952d38241d5a5b213f363afa421c3",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37822.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-37822",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37822.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-37822",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 518699,
  "published_at": "2025-05-08T06:26:16.209+00:00"
}