{"id":"CVE-2024-26622","state":"PUBLISHED","title":"tomoyo: fix UAF write bug in tomoyo_write_control()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntomoyo: fix UAF write bug in tomoyo_write_control()\n\nSince tomoyo_write_control() updates head->write_buf when write()\nof long lines is requested, we need to fetch head->write_buf after\nhead->io_sem is held.  Otherwise, concurrent write() requests can\ncause use-after-free-write and double-free problems.","publishedAt":"2024-03-04T06:40:01.754Z","updatedAt":"2026-05-11T20:00:58.869Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"bd03a3e4c9a9df0c6b007045fa7fc8889111a478","status":"affected","lessThan":"a23ac1788e2c828c097119e9a3178f0b7e503fee","versionType":"git"},{"version":"bd03a3e4c9a9df0c6b007045fa7fc8889111a478","status":"affected","lessThan":"7d930a4da17958f869ef679ee0e4a8729337affc","versionType":"git"},{"version":"bd03a3e4c9a9df0c6b007045fa7fc8889111a478","status":"affected","lessThan":"3bfe04c1273d30b866f4c7c238331ed3b08e5824","versionType":"git"},{"version":"bd03a3e4c9a9df0c6b007045fa7fc8889111a478","status":"affected","lessThan":"2caa605079488da9601099fbda460cfc1702839f","versionType":"git"},{"version":"bd03a3e4c9a9df0c6b007045fa7fc8889111a478","status":"affected","lessThan":"6edefe1b6c29a9932f558a898968a9fcbeec5711","versionType":"git"},{"version":"bd03a3e4c9a9df0c6b007045fa7fc8889111a478","status":"affected","lessThan":"2f03fc340cac9ea1dc63cbf8c93dd2eb0f227815","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/tomoyo/common.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.1","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.1","versionType":"semver"},{"version":"5.10.212","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.151","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.81","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.21","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7.9","status":"unaffected","lessThanOrEqual":"6.7.*","versionType":"semver"},{"version":"6.8","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/tomoyo/common.c"]}],"references":["https://git.kernel.org/stable/c/a23ac1788e2c828c097119e9a3178f0b7e503fee","https://git.kernel.org/stable/c/7d930a4da17958f869ef679ee0e4a8729337affc","https://git.kernel.org/stable/c/3bfe04c1273d30b866f4c7c238331ed3b08e5824","https://git.kernel.org/stable/c/2caa605079488da9601099fbda460cfc1702839f","https://git.kernel.org/stable/c/6edefe1b6c29a9932f558a898968a9fcbeec5711","https://git.kernel.org/stable/c/2f03fc340cac9ea1dc63cbf8c93dd2eb0f227815","https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IVVYSTEVMPYGF6GDSOD44MUXZXAZHOHB/"],"weaknesses":[],"ingestedAt":"2026-10-29T20:07:10.607Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/26xxx/CVE-2024-26622.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-26622","state":"PUBLISHED","datePublished":"2024-03-04T06:40:01.754Z","dateUpdated":"2026-05-11T20:00:58.869Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-02-19T14:20:24.134Z"},"containers":{"cna":{"title":"tomoyo: fix UAF write bug in tomoyo_write_control()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ntomoyo: fix UAF write bug in tomoyo_write_control()\n\nSince tomoyo_write_control() updates head->write_buf when write()\nof long lines is requested, we need to fetch head->write_buf after\nhead->io_sem is held.  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