{"id":"CVE-2023-40791","details":"extract_user_to_sg in lib/scatterlist.c in the Linux kernel before 6.4.12 fails to unpin pages in a certain situation, as demonstrated by a WARNING for try_grab_page.","modified":"2026-03-15T22:47:18.806505Z","published":"2023-10-16T03:15:09.273Z","references":[{"type":"ADVISORY","url":"https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.12"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20231110-0009/"},{"type":"FIX","url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f443fd5af5dbd531f880d3645d5dd36976cf087f"},{"type":"FIX","url":"https://lore.kernel.org/linux-crypto/20571.1690369076%40warthog.procyon.org.uk/"},{"type":"EVIDENCE","url":"https://lkml.org/lkml/2023/8/3/323"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-40791.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"6.4.12"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H"}]}