{"id":"CVE-2026-93222","title":"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","summary":"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 recipien…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 7a0cf094944e2540758b7f957eb6846d5126f535 < e015d1ac6b43a23c52c5163299414ae77d7d4ae0","Linux >= 7a0cf094944e2540758b7f957eb6846d5126f535 < 4ee7c4e4719a825052f42f02ec159b5b42b68fbc","Linux >= 7a0cf094944e2540758b7f957eb6846d5126f535 < 148b0dae2a1755beb873a2aab51fb191414f068c","Linux >= 7a0cf094944e2540758b7f957eb6846d5126f535 < 6b1de022304ef85284c5933a5fb8492f6f54efc9","Linux >= 7a0cf094944e2540758b7f957eb6846d5126f535 < 03c8761e75d1619906bb503686f9cc1dfc6a67f4","Linux >= 7a0cf094944e2540758b7f957eb6846d5126f535 < a246da20c8e4ae4319511c698b9f26ad0ad1769f","Linux >= 7a0cf094944e2540758b7f957eb6846d5126f535 < b655c2040ce836afad5643842543567b31f8c11d","Linux >= 7a0cf094944e2540758b7f957eb6846d5126f535 < d19cdc167e696714509e87d3f7ae765b6e164589","Linux e897dd22800f02bd48aefb1511fff0b2ce96e94c","Linux 2f0e9eed11ca778d0ec5507a739c28472fd4ca20","Linux >= 5.1.20 < 5.2","Linux >= 5.2.3 < 5.3","Linux 5.3"],"published":"2026-09-24","updated":"2026-09-24","sourceUpdated":"2026-09-24T16:17:17.437","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93222","references":[{"url":"https://git.kernel.org/stable/c/03c8761e75d1619906bb503686f9cc1dfc6a67f4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/148b0dae2a1755beb873a2aab51fb191414f068c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4ee7c4e4719a825052f42f02ec159b5b42b68fbc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6b1de022304ef85284c5933a5fb8492f6f54efc9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a246da20c8e4ae4319511c698b9f26ad0ad1769f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b655c2040ce836afad5643842543567b31f8c11d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d19cdc167e696714509e87d3f7ae765b6e164589","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e015d1ac6b43a23c52c5163299414ae77d7d4ae0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-24T15:45:56.666Z","slug":"CVE-2026-93222","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}