RLSA-2026:89083

Описание

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: tcp: restrict SO_ATTACH_FILTER to priv users (CVE-2026-53236)

• kernel: fuse: re-lock request before replacing page cache folio (CVE-2026-53388)

• kernel: writeback: fix race between cgroup_writeback_umount() and inode_switch_wbs() (CVE-2026-64378)

• kernel: net: gro: fix double aggregation of flush-marked skbs (CVE-2026-68136)

• kernel: net/packet: avoid fanout hook re-registration after unregister (CVE-2026-68338)

• kernel: net/iucv: fix use-after-free of a severed iucv_path (CVE-2026-68140)

• kernel: net/sched: serialize qdisc_rtab_list against concurrent get/put (CVE-2026-68138)

• kernel: ipvs: reload ip header after head reallocation (CVE-2026-68476)

• kernel: mptcp: options: reset DSS fields in case of unexpected size (CVE-2026-80586)

• kernel: usb: usbfs: fix use-after-free of usb_device in usbdev_release() (CVE-2026-80824)

• kernel: smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions (CVE-2026-89638)

• kernel: net/iucv: filter frames in afiucv_hs_rcv() by ingress device (CVE-2026-81003)

• kernel: ipv4: validate checksum_start before completing checksum (CVE-2026-99999)

Bug Fix(es) and Enhancement(s):

• Backport 6785011f8b16 ("ipv4: validate checksum_start before completing checksum") [rhel-8.10.z] (JIRA:Rocky Linux-280584)

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.