🛡️ SUSE-SU-2026:0496-1 — kernel-rt (CVE-2022-50697 +51 more)

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2022-50697: mrp: introduce active flags to prevent UAF when applicant uninit (bsc#1255594).
• CVE-2023-54142: gtp: Fix use-after-free in __gtp_encap_destroy() (bsc#1256095).
• CVE-2023-54243: netfilter: ebtables: fix table blob use-after-free (bsc#1255908).
• CVE-2025-38068: crypto: lzo - Fix compression buffer overrun (bsc#1245210).
• CVE-2025-38129: page_pool: fix inconsistency for page_pool_ring_lock() (bsc#1245723).
• CVE-2025-38159: wifi: rtw88: fix the 'para' buffer size to avoid reading out of bounds (bsc#1245751).
• CVE-2025-38375: virtio-net: ensure the received length does not exceed allocated size (bsc#1247177).
• CVE-2025-40257: mptcp: fix a race in mptcp_pm_del_add_timer() (bsc#1254842).
• CVE-2025-40300: Documentation/hw-vuln: Add VMSCAPE documentation (bsc#1247483).
• CVE-2025-68183: ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr (bsc#1255251).
• CVE-2025-68284: libceph: prevent potential out-of-bounds writes in handle_auth_session_key() (bsc#1255377).
• CVE-2025-68285: libceph: fix potential use-after-free in have_mon_and_osd_map() (bsc#1255401).
• CVE-2025-68312: usbnet: Prevents free active kevent (bsc#1255171).
• CVE-2025-68771: ocfs2: fix kernel BUG in ocfs2_find_victim_chain (bsc#1256582).
• CVE-2025-68813: ipvs: fix ipv4 null-ptr-deref in route error path (bsc#1256641).
• CVE-2025-71085: ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr() (bsc#1256623).
• CVE-2025-71089: iommu: disable SVA when CONFIG_X86 is set (bsc#1256612).
• CVE-2025-71112: net: hns3: add VLAN id validation before using (bsc#1256726).
• CVE-2025-71116: libceph: make decode_pool() more resilient against corrupted osdmaps (bsc#1256744).
• CVE-2025-71120: SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf (bsc#1256779).
• CVE-2026-22999: net/sched: sch_qfq: do not free existing class in qfq_change_class() (bsc#1257236).
• CVE-2026-23001: macvlan: fix possible UAF in macvlan_forward_source() (bsc#1257232).
• CVE-2023-53215: sched/fair: Don't balance task to its current running CPU (bsc#1250397).
• CVE-2024-44987: ipv6: prevent UAF in ip6_send_skb() (bsc#1230185).

The following non security issues were fixed:

• Revert 'ocfs2: fix kernel BUG in ocfs2_find_victim_chain (bsc#1256582)'.
• mm, page_alloc, thp: prevent reclaim for __GFP_THISNODE THP allocations (bsc#1253087 bsc#1254447).
• net: hv_netvsc: reject RSS hash key programming without RX indirection table (bsc#1257473).
• net: tcp: allow zero-window ACK update the window (bsc#1254767).
• net: tcp: send zero-window ACK when no memory (bsc#1254767).
• scsi: storvsc: Process unsupported MODE_SENSE_10 (bsc#1257296).
• tcp: correct handling of extreme memory squeeze (bsc#1254767).
• x86: make page fault handling disable interrupts properly (git-fixes).