{"id":"CVE-2026-72027","summary":"mm/compaction: handle free_pages_prepare() properly in compaction_free()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/compaction: handle free_pages_prepare() properly in compaction_free()\n\nfree_pages_prepare() can fail but compaction_free() does not handle the\nfailure case.  Failed pages should not be added back to cc-\u003efreepages for\nfuture use, since they can be either PageHWPoison or free_page_is_bad()\nand might cause data corruption.","modified":"2026-08-18T03:56:18.687675038Z","published":"2026-08-15T05:51:51.219Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72027.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/018d7ad26cb8bdfe9842f2ca68a42b0bfdcc82fe"},{"type":"WEB","url":"https://git.kernel.org/stable/c/23afc3786acf359c135093893fb43a436768c832"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7da7d599b8a83271c464adfd5ef160202b470570"},{"type":"WEB","url":"https://git.kernel.org/stable/c/de8577db09039d4950239b01446ab5ead9028ab4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72027.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72027"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"733aea0b3a7bba0451dfc19322665de13a5b7af4"},{"fixed":"de8577db09039d4950239b01446ab5ead9028ab4"},{"fixed":"018d7ad26cb8bdfe9842f2ca68a42b0bfdcc82fe"},{"fixed":"23afc3786acf359c135093893fb43a436768c832"},{"fixed":"7da7d599b8a83271c464adfd5ef160202b470570"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72027.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.9.0"},{"fixed":"6.12.97"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72027.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}