{"id":"RLSA-2026:19568","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: net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit (CVE-2025-39766)\n\n* kernel: scsi: qla2xxx: Fix improper freeing of purex item (CVE-2025-68741)\n\n* kernel: libceph: make decode_pool() more resilient against corrupted osdmaps (CVE-2025-71116)\n\n* kernel: libceph: prevent potential out-of-bounds reads in handle_auth_done() (CVE-2026-22984)\n\n* kernel: libceph: replace overzealous BUG_ON in osdmap_apply_incremental() (CVE-2026-22990)\n\n* kernel: Linux kernel: Denial of Service in libceph OSD client due to unreset sparse-read state (CVE-2026-23136)\n\n* kernel: net/sched: cls_u32: use skb_header_pointer_careful() (CVE-2026-23204)\n\n* kernel: Linux kernel: Use-after-free in traffic control (act_ct) may lead to denial of service or privilege escalation (CVE-2026-23270)\n\n* kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling (CVE-2026-23401)\n\n* kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)\n\n* kernel: can: raw: fix ro-\u003euniq use-after-free in raw_rcv() (CVE-2026-31532)\n\n* kernel: usbip: validate number_of_packets in usbip_pack_ret_submit() (CVE-2026-31607)\n\n* kernel: md/bitmap: fix GPF in write_page caused by resize race (CVE-2026-43163)\n\n* kernel: RDMA/umem: Fix double dma_buf_unpin in failure path (CVE-2026-43128)\n\n* kernel: \"Dirty Frag\" is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-43284)\n\n* kernel: \"Fragnesia\" is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-46300)\n\n* kernel: Read root-owned files as an unprivileged user (CVE-2026-46333)\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":"2026-05-28T16:00:31.683843220Z","published":"2026-05-28T15:43:06.024531Z","upstream":["CVE-2025-39766","CVE-2025-68741","CVE-2025-71116","CVE-2026-22984","CVE-2026-22990","CVE-2026-23136","CVE-2026-23204","CVE-2026-23270","CVE-2026-23401","CVE-2026-31402","CVE-2026-31532","CVE-2026-31607","CVE-2026-43128","CVE-2026-43163","CVE-2026-43284","CVE-2026-46300","CVE-2026-46333"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:19568"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2394648"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2425046"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2429602"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2432389"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2432400"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2439852"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2439931"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2448745"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2453803"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2454844"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2461107"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2461521"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2467059"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2467144"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2467771"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2477015"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2477802"}],"affected":[{"package":{"name":"kernel","ecosystem":"Rocky Linux:9","purl":"pkg:rpm/rocky-linux/kernel?distro=rocky-linux-9&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.14.0-687.10.1.el9_8.0.1"}],"database_specific":{"yum_repository":"BaseOS"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:19568.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}