{"id":"ALSA-2026:93436","summary":"Important: 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: ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo() (CVE-2026-63924)\n  * kernel: ipv6: exthdrs: refresh nh after handling HAO option (CVE-2026-63922)\n  * kernel: af_unix: Fix UAF read of tail-\u003elen in unix_stream_data_wait() (CVE-2026-64109)\n  * kernel: scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE (CVE-2026-72083)\n  * kernel: tipc: require net admin for TIPCv2 netlink mutators (CVE-2026-74283)\n  * kernel: smb: client: bound dirent name against end of SMB response in cifs_filldir (CVE-2026-93787)\n  * kernel: ZDI-CAN-33367: Linux Kernel skbuff skb_zerocopy Improper Ownership Management Local Privilege Escalation Vulnerability ()\n\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.\n","modified":"2026-11-02T23:00:02.535501278Z","published":"2026-11-02T00:00:00Z","related":["CVE-2026-63922","CVE-2026-63924","CVE-2026-64109","CVE-2026-72083","CVE-2026-74283","CVE-2026-93787"],"upstream":["CVE-2026-63922","CVE-2026-63924","CVE-2026-64109","CVE-2026-72083","CVE-2026-74283","CVE-2026-93787"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:93436"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-63922"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-63924"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-64109"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-72083"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-74283"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-93787"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2502326"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2502327"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2502615"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2516579"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2516935"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2540555"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2559835"},{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2026-93436.html"}],"affected":[{"package":{"name":"bpftool","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/bpftool"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.181.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:93436.json"}},{"package":{"name":"kernel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.181.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:93436.json"}},{"package":{"name":"kernel-abi-stablelists","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-abi-stablelists"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.181.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:93436.json"}},{"package":{"name":"kernel-core","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.181.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:93436.json"}},{"package":{"name":"kernel-cross-headers","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-cross-headers"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.181.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:93436.json"}},{"package":{"name":"kernel-debug","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-debug"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.181.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:93436.json"}},{"package":{"name":"kernel-debug-core","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-debug-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.181.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:93436.json"}},{"package":{"name":"kernel-debug-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-debug-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.181.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:93436.json"}},{"package":{"name":"kernel-debug-modules","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-debug-modules"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.181.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:93436.json"}},{"package":{"name":"kernel-debug-modules-extra","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-debug-modules-extra"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.181.1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:93436.json"}},{"package":{"name":"kernel-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-553.181.1.el8_10"}]}],"data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