FKIE_CVE-2022-50812

Vulnerability from fkie_nvd - Published: 2025-12-30 13:15 - Updated: 2026-06-17 05:24
Severity
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0b202dfedb5aa2e7d07d849be33fa3a48c026926
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/21ca0bfa11bbb9a9207f5d2104f47d3d71b4616e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8a4236456a3a402f6bb92aa7b75e7a3b4ef7a72c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d6a9fb87e9d18f3394a9845546bbe868efdccfd2
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "security/Kconfig.hardening"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8a4236456a3a402f6bb92aa7b75e7a3b4ef7a72c",
              "status": "affected",
              "version": "a82adfd5c7cb4b8bb37ef439aed954f9972bb618",
              "versionType": "git"
            },
            {
              "lessThan": "0b202dfedb5aa2e7d07d849be33fa3a48c026926",
              "status": "affected",
              "version": "a82adfd5c7cb4b8bb37ef439aed954f9972bb618",
              "versionType": "git"
            },
            {
              "lessThan": "21ca0bfa11bbb9a9207f5d2104f47d3d71b4616e",
              "status": "affected",
              "version": "a82adfd5c7cb4b8bb37ef439aed954f9972bb618",
              "versionType": "git"
            },
            {
              "lessThan": "d6a9fb87e9d18f3394a9845546bbe868efdccfd2",
              "status": "affected",
              "version": "a82adfd5c7cb4b8bb37ef439aed954f9972bb618",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "security/Kconfig.hardening"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.86",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsecurity: Restrict CONFIG_ZERO_CALL_USED_REGS to gcc or clang \u003e 15.0.6\n\nA bad bug in clang\u0027s implementation of -fzero-call-used-regs can result\nin NULL pointer dereferences (see the links above the check for more\ninformation). Restrict CONFIG_CC_HAS_ZERO_CALL_USED_REGS to either a\nsupported GCC version or a clang newer than 15.0.6, which will catch\nboth a theoretical 15.0.7 and the upcoming 16.0.0, which will both have\nthe bug fixed."
    }
  ],
  "id": "CVE-2022-50812",
  "lastModified": "2026-06-17T05:24:13.920",
  "metrics": {},
  "published": "2025-12-30T13:15:55.537",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0b202dfedb5aa2e7d07d849be33fa3a48c026926"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/21ca0bfa11bbb9a9207f5d2104f47d3d71b4616e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8a4236456a3a402f6bb92aa7b75e7a3b4ef7a72c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d6a9fb87e9d18f3394a9845546bbe868efdccfd2"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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