{"id":"DEBIAN-CVE-2025-21789","details":"In the Linux kernel, the following vulnerability has been resolved:  LoongArch: csum: Fix OoB access in IP checksum code for negative lengths  Commit 69e3a6aa6be2 (\"LoongArch: Add checksum optimization for 64-bit system\") would cause an undefined shift and an out-of-bounds read.  Commit 8bd795fedb84 (\"arm64: csum: Fix OoB access in IP checksum code for negative lengths\") fixes the same issue on ARM64.","modified":"2026-08-27T23:05:07.298353432Z","published":"2025-02-27T03:15:19.763Z","upstream":["CVE-2025-21789"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-21789"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.16-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-21789.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.16-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-21789.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:N/A:H"}]}