RLSA-2026:89083

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Source
https://errata.rockylinux.org/RLSA-2026:89083
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:89083.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2026:89083
Upstream
CVE (13)
Published
2026-10-26T12:00:53Z
Modified
2026-10-26T12:30:03Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
Important: kernel security, bug fix, and enhancement update
Details

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.

Database specific 
{
    "license":  "CC-BY-4.0",
    "license_url":  "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory":  "RHSA-2026:89083"
}
References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:8 / kernel

Package

Name
kernel
Purl
pkg:rpm/rocky-linux/kernel?distro=rocky-linux-8&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.178.1.el8_10
Database specific
Show details 
{
    "yum_repository":  "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:89083.json"