{"id":"CVE-2024-36031","state":"PUBLISHED","title":"keys: Fix overwrite of key expiration on instantiation","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nkeys: Fix overwrite of key expiration on instantiation\n\nThe expiry time of a key is unconditionally overwritten during\ninstantiation, defaulting to turn it permanent. This causes a problem\nfor DNS resolution as the expiration set by user-space is overwritten to\nTIME64_MAX, disabling further DNS updates. Fix this by restoring the\ncondition that key_set_expiry is only called when the pre-parser sets a\nspecific expiry.","publishedAt":"2024-05-30T15:23:46.831Z","updatedAt":"2026-05-23T15:46:34.970Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"97be1e865e70e5a0ad0a5b5f5dca5031ca0b53ac","status":"affected","lessThan":"ad2011ea787928b2accb5134f1e423b11fe80a8a","versionType":"git"},{"version":"2552b32b0b349df160a509fe49f5f308cb922f2b","status":"affected","lessThan":"ed79b93f725cd0da39a265dc23d77add1527b9be","versionType":"git"},{"version":"791d5409cdb974c31a1bc7a903ea729ddc7d83df","status":"affected","lessThan":"e4519a016650e952ad9eb27937f8c447d5a4e06d","versionType":"git"},{"version":"afc360e8a1256acb7579a6f5b6f2c30b85b39301","status":"affected","lessThan":"25777f3f4e1f371d16a594925f31e37ce07b6ec7","versionType":"git"},{"version":"39299bdd2546688d92ed9db4948f6219ca1b9542","status":"affected","lessThan":"939a08bcd4334bad4b201e60bd0ae1f278d71d41","versionType":"git"},{"version":"39299bdd2546688d92ed9db4948f6219ca1b9542","status":"affected","lessThan":"cc219cb8afbc40ec100c0de941047bb29373126a","versionType":"git"},{"version":"39299bdd2546688d92ed9db4948f6219ca1b9542","status":"affected","lessThan":"9da27fb65a14c18efd4473e2e82b76b53ba60252","versionType":"git"},{"version":"5.10.206","status":"affected","lessThan":"5.10.217","versionType":"semver"},{"version":"5.15.146","status":"affected","lessThan":"5.15.159","versionType":"semver"},{"version":"6.1.70","status":"affected","lessThan":"6.1.91","versionType":"semver"},{"version":"6.6.9","status":"affected","lessThan":"6.6.31","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/keys/key.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.7","versionType":"semver"},{"version":"5.10.217","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.159","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.91","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.31","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.8.10","status":"unaffected","lessThanOrEqual":"6.8.*","versionType":"semver"},{"version":"6.9.1","status":"unaffected","lessThanOrEqual":"6.9.*","versionType":"semver"},{"version":"6.10","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/keys/key.c"]}],"references":["https://git.kernel.org/stable/c/ad2011ea787928b2accb5134f1e423b11fe80a8a","https://git.kernel.org/stable/c/ed79b93f725cd0da39a265dc23d77add1527b9be","https://git.kernel.org/stable/c/e4519a016650e952ad9eb27937f8c447d5a4e06d","https://git.kernel.org/stable/c/25777f3f4e1f371d16a594925f31e37ce07b6ec7","https://git.kernel.org/stable/c/939a08bcd4334bad4b201e60bd0ae1f278d71d41","https://git.kernel.org/stable/c/cc219cb8afbc40ec100c0de941047bb29373126a","https://git.kernel.org/stable/c/9da27fb65a14c18efd4473e2e82b76b53ba60252","https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html"],"weaknesses":["CWE-324"],"ingestedAt":"2026-10-29T20:07:30.303Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/36xxx/CVE-2024-36031.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-36031","state":"PUBLISHED","datePublished":"2024-05-30T15:23:46.831Z","dateUpdated":"2026-05-23T15:46:34.970Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-05-17T13:50:33.160Z"},"containers":{"cna":{"title":"keys: Fix overwrite of key expiration on instantiation","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nkeys: Fix overwrite of key expiration on instantiation\n\nThe expiry time of a key is unconditionally overwritten during\ninstantiation, defaulting to turn it permanent. 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