sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock() (CVE-2025-40149) * kernel: Linux kernel: Denial of Service in qla2xxx SCSI driver due to improper command handling after chip reset (CVE-2025-68745) * kernel: drm/xe: Open-code GGTT MMIO access protection (CVE-2026-23466) * kernel: drm/xe: always keep track of remap prev/next (CVE-2026-31479) * kernel: drm/amdgpu: Fix fence put before wait in amdgpu_amdkfd_submit_ib (CVE-2026-31566) * kernel: xfrm: hold dev ref until after transport_finish NF_HOOK (CVE-2026-31663) * kernel: drm/i915/gt: fix refcount underflow in intel_engine_park_heartbeat (CVE-2026-31656) * kernel: smb: smbdirect: introduce smbdirect_socket.recv_io.credits.available (CVE-2026-31539) * kernel: vhost: move vdpa group bound check to vhost_vdpa (CVE-2026-43248) * kernel: drm/i915: Fix potential overflow of shmem scatterlist length (CVE-2026-43368) * kernel: drm/amdgpu: Fix use-after-free race in VM acquire (CVE-2026-43370) * kernel: scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() (CVE-2026-46149) * kernel: sctp: purge outqueue on stale COOKIE-ECHO handling (CVE-2026-52924) * kernel: netfilter: require Ethernet MAC header before using eth_hdr() (CVE-2026-53131) * kernel: sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing (CVE-2026-53246) * kernel: xfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx() (CVE-2026-53239) * kernel: af_unix: Set gc_in_progress to true in unix_gc() (CVE-2026-53361) * kernel: scsi: scsi_transport_fc: Widen FPIN pname walker counter to u32 (CVE-2026-63889) * kernel: ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate() (CVE-2026-63921) * kernel: xfrm: input: hold netns during deferred transport reinjection (CVE-2026-63919) * kernel: ip6: vti: Use ip6_tnl.net in vti6_changelink() (CVE-2026-63917) * kernel: lsm: hold cred_guard_mutex for lsm_set_self_attr() (CVE-2026-64111) * kernel: drm/xe/pt: Reset current_op in xe_pt_update_ops_init() (CVE-2026-68264) * kernel: xfrm: fix stale skb->prev after async crypto steals a GSO segment (CVE-2026-68426) * kernel: scsi: libiscsi_tcp: Bound SCSI Response data segment to the connection buffer (CVE-2026-74556) Bug Fix(es) and Enhancement(s): * [almalinux-10.2.z]- Backport MSHV patches for hypervisor OOM handling (JIRA:AlmaLinux-245035) * RHIVOS - [backport] S32G Driver Enablement - ADC (JIRA:AlmaLinux-255233) * [AlmaLinux10.2z] watchdog: System can panic during reboot when pretimeout is disabled (0) (JIRA:AlmaLinux-255348) * [usb/xhci] kdump on Arrow Lake systems hangs system with dracut-initqueue Timed out errors [AlmaLinux-10.2.z] (JIRA:AlmaLinux-256731) * RHIVOS - [backport] S32G Driver Update - ADC, I2C, and eDMA (JIRA:AlmaLinux-256890) 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.

Where it's fixed