{"api_version":"1","generated_at":"2026-11-05T23:41:19+00:00","cve":"CVE-2026-99245","urls":{"html":"https://cve.report/CVE-2026-99245","api":"https://cve.report/api/cve/CVE-2026-99245.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-99245","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-99245"},"summary":{"title":"KEYS: Fix key_reject_and_link() race with keyring restriction","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKEYS: Fix key_reject_and_link() race with keyring restriction\n\nThe restrict_link check in key_reject_and_link() is done before taking\nthe keyring semaphore, racing with a concurrent keyring_restrict()\nthat installs the restriction while holding the semaphore in write\nmode.\n\nMove the check to after __key_link_lock(), so it is done under the\nsemaphore, matching the pattern used in __key_create_or_update().","state":"PUBLISHED","assigner":"Linux","published_at":"2026-11-03 12:17:30","updated_at":"2026-11-03 20:18:30"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/72f367417a6aee56821d0b0114cfd2b080008b63","name":"https://git.kernel.org/stable/c/72f367417a6aee56821d0b0114cfd2b080008b63","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/23a9163cc40b4996ba1e20533b1210a1a0bee416","name":"https://git.kernel.org/stable/c/23a9163cc40b4996ba1e20533b1210a1a0bee416","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/19dfc37c9deefa69dc805d01d35d1f2fd7902e33","name":"https://git.kernel.org/stable/c/19dfc37c9deefa69dc805d01d35d1f2fd7902e33","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6fc0c818b1cac66003e937c8a0d3bfb23fd3f130","name":"https://git.kernel.org/stable/c/6fc0c818b1cac66003e937c8a0d3bfb23fd3f130","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5787887eba0f0979a8c86d03a8e891395d5c24ad","name":"https://git.kernel.org/stable/c/5787887eba0f0979a8c86d03a8e891395d5c24ad","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/01835d3a3709be508ae5209f806640336c48e395","name":"https://git.kernel.org/stable/c/01835d3a3709be508ae5209f806640336c48e395","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0b157166e612b70f98a332b6c7be7eac6f8e9593","name":"https://git.kernel.org/stable/c/0b157166e612b70f98a332b6c7be7eac6f8e9593","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c7956ec99ad0e173720d95de9fa788bb077809f2","name":"https://git.kernel.org/stable/c/c7956ec99ad0e173720d95de9fa788bb077809f2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2c3d907dd15f4e30d4c35b9f7a7a5078de6a1b1f","name":"https://git.kernel.org/stable/c/2c3d907dd15f4e30d4c35b9f7a7a5078de6a1b1f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-99245","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-99245","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c c7956ec99ad0e173720d95de9fa788bb077809f2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c 2c3d907dd15f4e30d4c35b9f7a7a5078de6a1b1f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c 72f367417a6aee56821d0b0114cfd2b080008b63 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c 19dfc37c9deefa69dc805d01d35d1f2fd7902e33 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["security/keys/key.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c7956ec99ad0e173720d95de9fa788bb077809f2","status":"affected","version":"5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c","versionType":"git"},{"lessThan":"2c3d907dd15f4e30d4c35b9f7a7a5078de6a1b1f","status":"affected","version":"5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c","versionType":"git"},{"lessThan":"72f367417a6aee56821d0b0114cfd2b080008b63","status":"affected","version":"5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c","versionType":"git"},{"lessThan":"19dfc37c9deefa69dc805d01d35d1f2fd7902e33","status":"affected","version":"5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c","versionType":"git"},{"lessThan":"5787887eba0f0979a8c86d03a8e891395d5c24ad","status":"affected","version":"5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c","versionType":"git"},{"lessThan":"01835d3a3709be508ae5209f806640336c48e395","status":"affected","version":"5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c","versionType":"git"},{"lessThan":"6fc0c818b1cac66003e937c8a0d3bfb23fd3f130","status":"affected","version":"5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c","versionType":"git"},{"lessThan":"23a9163cc40b4996ba1e20533b1210a1a0bee416","status":"affected","version":"5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c","versionType":"git"},{"lessThan":"0b157166e612b70f98a332b6c7be7eac6f8e9593","status":"affected","version":"5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["security/keys/key.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.7"},{"lessThan":"4.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.273","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.224","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.191","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.161","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.115","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.60","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.14","versionType":"semver"},{"lessThanOrEqual":"7.3.*","status":"unaffected","version":"7.3.1","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.4-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.273","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.224","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.191","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.161","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.115","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.60","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.14","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3.1","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.4-rc1","versionStartIncluding":"4.7","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nKEYS: Fix key_reject_and_link() race with keyring restriction\n\nThe restrict_link check in key_reject_and_link() is done before taking\nthe keyring semaphore, racing with a concurrent keyring_restrict()\nthat installs the restriction while holding the semaphore in write\nmode.\n\nMove the check to after __key_link_lock(), so it is done under the\nsemaphore, matching the pattern used in __key_create_or_update()."}],"providerMetadata":{"dateUpdated":"2026-11-03T19:13:10.812Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/c7956ec99ad0e173720d95de9fa788bb077809f2"},{"url":"https://git.kernel.org/stable/c/2c3d907dd15f4e30d4c35b9f7a7a5078de6a1b1f"},{"url":"https://git.kernel.org/stable/c/72f367417a6aee56821d0b0114cfd2b080008b63"},{"url":"https://git.kernel.org/stable/c/19dfc37c9deefa69dc805d01d35d1f2fd7902e33"},{"url":"https://git.kernel.org/stable/c/5787887eba0f0979a8c86d03a8e891395d5c24ad"},{"url":"https://git.kernel.org/stable/c/01835d3a3709be508ae5209f806640336c48e395"},{"url":"https://git.kernel.org/stable/c/6fc0c818b1cac66003e937c8a0d3bfb23fd3f130"},{"url":"https://git.kernel.org/stable/c/23a9163cc40b4996ba1e20533b1210a1a0bee416"},{"url":"https://git.kernel.org/stable/c/0b157166e612b70f98a332b6c7be7eac6f8e9593"}],"title":"KEYS: Fix key_reject_and_link() race with keyring restriction","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-99245","datePublished":"2026-11-03T11:15:15.050Z","dateReserved":"2026-09-25T10:25:14.403Z","dateUpdated":"2026-11-03T19:13:10.812Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-11-03 12:17:30","lastModifiedDate":"2026-11-03 20:18:30","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"99245","Ordinal":"1","Title":"KEYS: Fix key_reject_and_link() race with keyring restriction","CVE":"CVE-2026-99245","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"99245","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nKEYS: Fix key_reject_and_link() race with keyring restriction\n\nThe restrict_link check in key_reject_and_link() is done before taking\nthe keyring semaphore, racing with a concurrent keyring_restrict()\nthat installs the restriction while holding the semaphore in write\nmode.\n\nMove the check to after __key_link_lock(), so it is done under the\nsemaphore, matching the pattern used in __key_create_or_update().","Type":"Description","Title":"KEYS: Fix key_reject_and_link() race with keyring restriction"}]}}}