{"id":"MGASA-2021-0225","summary":"Updated kernel-linus packages fix security vulnerability","details":"This kernel-linus update is based on upstream 5.10.41 and fixes at least\nthe following security issue:\n\nkernel/bpf/verifier.c in the Linux kernel through 5.12.7 enforces incorrect\nlimits for pointer arithmetic operations. This can be abused to perform\nout-of-bounds reads and writes in kernel memory, leading to local privilege\nescalation to root. In particular, there is a corner case where the off reg\ncauses a masking direction change, which then results in an incorrect final\naux-\u003ealu_limit (CVE-2021-33200).\n\nFor other upstream fixes, see the referenced changelogs.\n","modified":"2026-02-01T20:10:05.083955Z","published":"2021-05-31T20:31:00Z","related":["CVE-2021-33200"],"references":[{"type":"ADVISORY","url":"https://advisories.mageia.org/MGASA-2021-0225.html"},{"type":"REPORT","url":"https://bugs.mageia.org/show_bug.cgi?id=28981"},{"type":"REPORT","url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.38"},{"type":"REPORT","url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.39"},{"type":"REPORT","url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.40"},{"type":"REPORT","url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.41"}],"affected":[{"package":{"name":"kernel-linus","ecosystem":"Mageia:7","purl":"pkg:rpm/mageia/kernel-linus?arch=source&distro=mageia-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.41-1.mga7"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2021-0225.json"}},{"package":{"name":"kernel-linus","ecosystem":"Mageia:8","purl":"pkg:rpm/mageia/kernel-linus?arch=source&distro=mageia-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.41-1.mga8"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2021-0225.json"}}],"schema_version":"1.7.3","credits":[{"name":"Mageia","contact":["https://wiki.mageia.org/en/Packages_Security_Team"],"type":"COORDINATOR"}]}