{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93222","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-17T16:02:15.094Z","datePublished":"2026-09-24T15:21:04.961Z","dateUpdated":"2026-09-24T15:21:04.961Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-24T15:21:04.961Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsignal: avoid shared siginfo namespace rewrites\n\nsend_signal_locked() rewrites sender ids for the target namespace.  Group\nsends reuse the same siginfo, so one recipient can affect the next.\n\nCopy the siginfo before changing it."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/signal.c"],"versions":[{"version":"7a0cf094944e2540758b7f957eb6846d5126f535","lessThan":"e015d1ac6b43a23c52c5163299414ae77d7d4ae0","status":"affected","versionType":"git"},{"version":"7a0cf094944e2540758b7f957eb6846d5126f535","lessThan":"4ee7c4e4719a825052f42f02ec159b5b42b68fbc","status":"affected","versionType":"git"},{"version":"7a0cf094944e2540758b7f957eb6846d5126f535","lessThan":"148b0dae2a1755beb873a2aab51fb191414f068c","status":"affected","versionType":"git"},{"version":"7a0cf094944e2540758b7f957eb6846d5126f535","lessThan":"6b1de022304ef85284c5933a5fb8492f6f54efc9","status":"affected","versionType":"git"},{"version":"7a0cf094944e2540758b7f957eb6846d5126f535","lessThan":"03c8761e75d1619906bb503686f9cc1dfc6a67f4","status":"affected","versionType":"git"},{"version":"7a0cf094944e2540758b7f957eb6846d5126f535","lessThan":"a246da20c8e4ae4319511c698b9f26ad0ad1769f","status":"affected","versionType":"git"},{"version":"7a0cf094944e2540758b7f957eb6846d5126f535","lessThan":"b655c2040ce836afad5643842543567b31f8c11d","status":"affected","versionType":"git"},{"version":"7a0cf094944e2540758b7f957eb6846d5126f535","lessThan":"d19cdc167e696714509e87d3f7ae765b6e164589","status":"affected","versionType":"git"},{"version":"e897dd22800f02bd48aefb1511fff0b2ce96e94c","status":"affected","versionType":"git"},{"version":"2f0e9eed11ca778d0ec5507a739c28472fd4ca20","status":"affected","versionType":"git"},{"version":"5.1.20","lessThan":"5.2","status":"affected","versionType":"semver"},{"version":"5.2.3","lessThan":"5.3","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/signal.c"],"versions":[{"version":"5.3","status":"affected"},{"version":"0","lessThan":"5.3","status":"unaffected","versionType":"semver"},{"version":"5.10.270","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.221","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.188","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.157","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.109","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.50","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.4","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"5.10.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"5.15.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"6.12.109"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"6.18.50"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"7.2.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"7.3-rc1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1.20"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/e015d1ac6b43a23c52c5163299414ae77d7d4ae0"},{"url":"https://git.kernel.org/stable/c/4ee7c4e4719a825052f42f02ec159b5b42b68fbc"},{"url":"https://git.kernel.org/stable/c/148b0dae2a1755beb873a2aab51fb191414f068c"},{"url":"https://git.kernel.org/stable/c/6b1de022304ef85284c5933a5fb8492f6f54efc9"},{"url":"https://git.kernel.org/stable/c/03c8761e75d1619906bb503686f9cc1dfc6a67f4"},{"url":"https://git.kernel.org/stable/c/a246da20c8e4ae4319511c698b9f26ad0ad1769f"},{"url":"https://git.kernel.org/stable/c/b655c2040ce836afad5643842543567b31f8c11d"},{"url":"https://git.kernel.org/stable/c/d19cdc167e696714509e87d3f7ae765b6e164589"}],"title":"signal: avoid shared siginfo namespace rewrites","x_generator":{"engine":"bippy-1.2.0"}}}}