security: Restrict CONFIG_ZERO_CALL_USED_REGS to gcc or clang > 15.0.6

{
  "id": "e767a63749b6ed974332717583f884f18468bf1bdfbf0e38775c4e163781e9d1",
  "url": "https://osv.dev/vulnerability/CVE-2022-50812",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "security: Restrict CONFIG_ZERO_CALL_USED_REGS to gcc or clang > 15.0.6",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: security: Restrict CONFIG_ZERO_CALL_USED_REGS to gcc or clang > 15.0.6 A bad bug in clang's implementation of -fzero-call-used-regs can result in NULL pointer dereferences (see the links above the check for more information). Restrict CONFIG_CC_HAS_ZERO_CALL_USED_REGS to either a supported GCC version or a clang newer than 15.0.6, which will catch both a theoretical 15.0.7 and the upcoming 16.0.0, which will both have the bug fixed.",
    "evidence": "osv:CVE-2022-50812",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.86",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.0.16",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-50812",
      "aliases": [
        "CVE-2022-50812"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "a82adfd5c7cb4b8bb37ef439aed954f9972bb618"
                },
                {
                  "fixed": "8a4236456a3a402f6bb92aa7b75e7a3b4ef7a72c"
                },
                {
                  "fixed": "0b202dfedb5aa2e7d07d849be33fa3a48c026926"
                },
                {
                  "fixed": "21ca0bfa11bbb9a9207f5d2104f47d3d71b4616e"
                },
                {
                  "fixed": "d6a9fb87e9d18f3394a9845546bbe868efdccfd2"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50812.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.15.0"
                },
                {
                  "fixed": "5.15.86"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.0.16"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.1.0"
                },
                {
                  "fixed": "6.1.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50812.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.887606720Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0b202dfedb5aa2e7d07d849be33fa3a48c026926",
        "https://git.kernel.org/stable/c/21ca0bfa11bbb9a9207f5d2104f47d3d71b4616e",
        "https://git.kernel.org/stable/c/8a4236456a3a402f6bb92aa7b75e7a3b4ef7a72c",
        "https://git.kernel.org/stable/c/d6a9fb87e9d18f3394a9845546bbe868efdccfd2",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50812.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-50812",
        "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/2022/50xxx/CVE-2022-50812.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-50812",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 501156,
  "published_at": "2025-12-30T12:08:29.434+00:00"
}