{"id":"DEBIAN-CVE-2025-21800","details":"In the Linux kernel, the following vulnerability has been resolved:  net/mlx5: HWS, fix definer's HWS_SET32 macro for negative offset  When bit offset for HWS_SET32 macro is negative, UBSAN complains about the shift-out-of-bounds:    UBSAN: shift-out-of-bounds in   drivers/net/ethernet/mellanox/mlx5/core/steering/hws/definer.c:177:2   shift exponent -8 is negative","modified":"2026-09-01T20:05:42.392999137Z","published":"2025-02-27T20:16:02.660Z","upstream":["CVE-2025-21800"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-21800"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.13-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-21800.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.13-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-21800.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"}]}