{"id":"RLSA-2025:7956","summary":"Moderate: kernel security update","details":"The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: dm-flakey: Fix memory corruption in optional corrupt_bio_byte feature (CVE-2025-21966)\n\n* kernel: iscsi_ibft: Fix UBSAN shift-out-of-bounds warning in ibft_attr_show_nic() (CVE-2025-21993)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","modified":"2025-10-08T17:12:40.489722Z","published":"2025-10-03T19:56:45.270310Z","upstream":["CVE-2025-21966","CVE-2025-21993"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2025:7956"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2356605"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2356908"}],"affected":[{"package":{"name":"kernel","ecosystem":"Rocky Linux:10","purl":"pkg:rpm/rocky-linux/kernel?distro=rocky-linux-10-0&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:6.12.0-55.12.1.el10_0"}],"database_specific":{"yum_repository":"BaseOS"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2025:7956.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}