{"id":"CVE-2022-50812","state":"PUBLISHED","title":"security: Restrict CONFIG_ZERO_CALL_USED_REGS to gcc or clang > 15.0.6","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsecurity: Restrict CONFIG_ZERO_CALL_USED_REGS to gcc or clang > 15.0.6\n\nA bad bug in clang's 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.","publishedAt":"2025-12-30T12:08:29.434Z","updatedAt":"2026-05-11T19:25:35.722Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"a82adfd5c7cb4b8bb37ef439aed954f9972bb618","status":"affected","lessThan":"8a4236456a3a402f6bb92aa7b75e7a3b4ef7a72c","versionType":"git"},{"version":"a82adfd5c7cb4b8bb37ef439aed954f9972bb618","status":"affected","lessThan":"0b202dfedb5aa2e7d07d849be33fa3a48c026926","versionType":"git"},{"version":"a82adfd5c7cb4b8bb37ef439aed954f9972bb618","status":"affected","lessThan":"21ca0bfa11bbb9a9207f5d2104f47d3d71b4616e","versionType":"git"},{"version":"a82adfd5c7cb4b8bb37ef439aed954f9972bb618","status":"affected","lessThan":"d6a9fb87e9d18f3394a9845546bbe868efdccfd2","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/Kconfig.hardening"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"5.15.86","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/Kconfig.hardening"]}],"references":["https://git.kernel.org/stable/c/8a4236456a3a402f6bb92aa7b75e7a3b4ef7a72c","https://git.kernel.org/stable/c/0b202dfedb5aa2e7d07d849be33fa3a48c026926","https://git.kernel.org/stable/c/21ca0bfa11bbb9a9207f5d2104f47d3d71b4616e","https://git.kernel.org/stable/c/d6a9fb87e9d18f3394a9845546bbe868efdccfd2"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50812.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50812","state":"PUBLISHED","datePublished":"2025-12-30T12:08:29.434Z","dateUpdated":"2026-05-11T19:25:35.722Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-30T12:06:07.130Z"},"containers":{"cna":{"title":"security: Restrict CONFIG_ZERO_CALL_USED_REGS to gcc or clang > 15.0.6","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 > 15.0.6\n\nA bad bug in clang's 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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"a82adfd5c7cb4b8bb37ef439aed954f9972bb618","status":"affected","lessThan":"8a4236456a3a402f6bb92aa7b75e7a3b4ef7a72c","versionType":"git"},{"version":"a82adfd5c7cb4b8bb37ef439aed954f9972bb618","status":"affected","lessThan":"0b202dfedb5aa2e7d07d849be33fa3a48c026926","versionType":"git"},{"version":"a82adfd5c7cb4b8bb37ef439aed954f9972bb618","status":"affected","lessThan":"21ca0bfa11bbb9a9207f5d2104f47d3d71b4616e","versionType":"git"},{"version":"a82adfd5c7cb4b8bb37ef439aed954f9972bb618","status":"affected","lessThan":"d6a9fb87e9d18f3394a9845546bbe868efdccfd2","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/Kconfig.hardening"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"5.15.86","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/Kconfig.hardening"]}],"references":[{"url":"https://git.kernel.org/stable/c/8a4236456a3a402f6bb92aa7b75e7a3b4ef7a72c"},{"url":"https://git.kernel.org/stable/c/0b202dfedb5aa2e7d07d849be33fa3a48c026926"},{"url":"https://git.kernel.org/stable/c/21ca0bfa11bbb9a9207f5d2104f47d3d71b4616e"},{"url":"https://git.kernel.org/stable/c/d6a9fb87e9d18f3394a9845546bbe868efdccfd2"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:25:35.722Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"5.15.86"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.0.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.1.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}