Threats Tagged 'cve-2026-64515'

This Red Hat security advisory addresses multiple vulnerabilities and bug fixes in the Linux kernel packages for Red Hat Enterprise Linux 8 and 9. It includes a denial of service vulnerability in the qla2xxx SCSI driver (CVE-2025-68745) and several other security issues affecting Bluetooth, DRM, SCTP, Wi-Fi, and other kernel subsystems. The update is rated as important by Red Hat and requires a system reboot to apply. The advisory also contains non-security bug fixes and enhancements.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation (CVE-2026-43133) * kernel: ipv6: prevent possible UaF in addrconf_permanent_addr() (CVE-2026-43339) * kernel: crypto: pcrypt - Fix handling of MAY_BACKLOG requests (CVE-2026-43493) * kernel: tcp: call sk_data_ready() after listener migration (CVE-2026-46015) * kernel: scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() (CVE-2026-46149) * kernel: inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP (CVE-2026-46266) * kernel: flow_dissector: do not dissect PPPoE PFC frames (CVE-2026-46306) * kernel: Revert "net/smc: Introduce TCP ULP support" (CVE-2026-46330) * kernel: netfilter: conntrack: remove sprintf usage (CVE-2026-53002) * kernel: net: guard timestamp cmsgs to real error queue skbs (CVE-2026-53223) * kernel: ipv6: mcast: Fix use-after-free when processing MLD queries (CVE-2026-53275) * kernel: ipv4: account for fraggap on the paged allocation path (CVE-2026-53366) * kernel: net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer (CVE-2026-64034) * kernel: rhashtable: clear stale iter->p on table restart (CVE-2026-64563) * kernel: smb: client: fix double-free in SMB2_close() replay (CVE-2026-64597) * kernel: nvmet-rdma: handle inline data with a nonzero offset (CVE-2026-72129) * kernel: net: bridge: stop fast-leave after deleting a port group (CVE-2026-74480) Bug Fix(es) and Enhancement(s): * KSM to deduplicate only zero pages [rhel-9.8.z] (JIRA:RHEL-249161) For 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.

A vulnerability in the Linux kernel's mac80211 WiFi subsystem related to MLE defragmentation has been fixed. The flaw involved incorrect handling of multi-link elements (MLE) in non-transmitted profiles, causing improper defragmentation pointer usage that could lead to heap overruns or incorrect data parsing. This issue affects multiple Linux kernel versions prior to 7.0.0-28.28 and related builds. The vulnerability has a CVSS score of 8.3, indicating high impact on confidentiality and availability. A patch is available and included in updated Linux kernel packages. Users should update to the fixed versions to mitigate the risk. No known exploits are reported in the wild.