{"schema_version":"1.7.5","id":"SUSE-SU-2026:0961-1","published":"2026-03-23T09:08:52Z","modified":"2026-03-24T08:45:06.658916Z","related":["CVE-2023-53794","CVE-2023-53827","CVE-2025-21738","CVE-2025-38224","CVE-2025-38375","CVE-2025-68285","CVE-2025-71066","CVE-2026-23004","CVE-2026-23060","CVE-2026-23074","CVE-2026-23089","CVE-2026-23191","CVE-2026-23204","CVE-2026-23268","CVE-2026-23269"],"upstream":["CVE-2023-53794","CVE-2023-53827","CVE-2025-21738","CVE-2025-38224","CVE-2025-38375","CVE-2025-68285","CVE-2025-71066","CVE-2026-23004","CVE-2026-23060","CVE-2026-23074","CVE-2026-23089","CVE-2026-23191","CVE-2026-23204","CVE-2026-23268","CVE-2026-23269"],"summary":"Security update for the Linux Kernel","details":"\nThe SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various security bugfixes.\n\n\nThe following security bugs were fixed:\n\n- CVE-2023-53794: cifs: fix session state check in reconnect to avoid use-after-free issue (bsc#1255163).\n- CVE-2023-53827: Bluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp} (bsc#1255049).\n- CVE-2025-21738: ata: libata-sff: Ensure that we cannot write outside the allocated buffer (bsc#1238917).\n- CVE-2025-38224: can: kvaser_pciefd: refine error prone echo_skb_max handling logic (bsc#1246166).\n- CVE-2025-38375: virtio-net: ensure the received length does not exceed allocated size (bsc#1247177).\n- CVE-2025-68285: libceph: fix potential use-after-free in have_mon_and_osd_map() (bsc#1255401).\n- CVE-2025-71066: net/sched: ets: Always remove class from active list before deleting in ets_qdisc_change (bsc#1256645).\n- CVE-2026-23004: dst: fix races in rt6_uncached_list_del() and rt_del_uncached_list() (bsc#1257231).\n- CVE-2026-23060: crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec (bsc#1257735).\n- CVE-2026-23074: net/sched: Enforce that teql can only be used as root qdisc (bsc#1257749).\n- CVE-2026-23089: ALSA: usb-audio: Fix use-after-free in snd_usb_mixer_free() (bsc#1257790).\n- CVE-2026-23191: ALSA: aloop: Fix racy access at PCM trigger (bsc#1258395).\n- CVE-2026-23204: net/sched: cls_u32: use skb_header_pointer_careful() (bsc#1258340).\n- CVE-2026-23268: apparmor: fix unprivileged local user can do privileged policy management\n- CVE-2026-23269: apparmor: validate DFA start states are in bounds in unpack_pdb\n\nThe following non-security bugs were fixed:\n\n- Disable CONFIG_NET_SCH_ATM (jsc#PED-12836).\n- apparmor: Fix double free of ns_name in aa_replace_profiles() (bsc#1258849).\n- apparmor: fix differential encoding verification (bsc#1258849).\n- apparmor: fix memory leak in verify_header (bsc#1258849).\n- apparmor: fix missing bounds check on DEFAULT table in verify_dfa() (bsc#1258849).\n- apparmor: fix side-effect bug in match_char() macro usage (bsc#1258849).\n- apparmor: fix unprivileged local user can do privileged policy management (bsc#1258849).\n- apparmor: fix: limit the number of levels of policy namespaces (bsc#1258849).\n- apparmor: replace recursive profile removal with iterative approach (bsc#1258849).\n- apparmor: validate DFA start states are in bounds in unpack_pdb (bsc#1258849).\n","affected":[{"package":{"name":"kernel-rt","ecosystem":"SUSE:Linux Enterprise Micro 5.2","purl":"pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.3.18-150300.238.1"}]}],"ecosystem_specific":{"binaries":[{"kernel-rt":"5.3.18-150300.238.1","kernel-source-rt":"5.3.18-150300.238.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0961-1.json"}},{"package":{"name":"kernel-source-rt","ecosystem":"SUSE:Linux Enterprise Micro 5.2","purl":"pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.3.18-150300.238.1"}]}],"ecosystem_specific":{"binaries":[{"kernel-rt":"5.3.18-150300.238.1","kernel-source-rt":"5.3.18-150300.238.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:0961-1.json"}}],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2026/suse-su-20260961-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1238917"},{"type":"REPORT","url":"https://bugzilla.suse.com/1246166"},{"type":"REPORT","url":"https://bugzilla.suse.com/1247177"},{"type":"REPORT","url":"https://bugzilla.suse.com/1255049"},{"type":"REPORT","url":"https://bugzilla.suse.com/1255163"},{"type":"REPORT","url":"https://bugzilla.suse.com/1255401"},{"type":"REPORT","url":"https://bugzilla.suse.com/1256645"},{"type":"REPORT","url":"https://bugzilla.suse.com/1257231"},{"type":"REPORT","url":"https://bugzilla.suse.com/1257735"},{"type":"REPORT","url":"https://bugzilla.suse.com/1257749"},{"type":"REPORT","url":"https://bugzilla.suse.com/1257790"},{"type":"REPORT","url":"https://bugzilla.suse.com/1258340"},{"type":"REPORT","url":"https://bugzilla.suse.com/1258395"},{"type":"REPORT","url":"https://bugzilla.suse.com/1258849"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2023-53794"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2023-53827"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-21738"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-38224"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-38375"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-68285"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-71066"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-23004"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-23060"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-23074"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-23089"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-23191"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-23204"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-23268"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-23269"}]}