RLSA-2026:86033

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Source
https://errata.rockylinux.org/RLSA-2026:86033
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:86033.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2026:86033
Upstream
CVE (15)
Published
2026-10-22T00:04:07Z
Modified
2026-10-22T00:30:04Z
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: openvswitch: defer tunnel netdev_put to RCU release (CVE-2026-31678)

  • kernel: xfrm: espintcp: do not reuse an in-progress partial send (CVE-2026-52935)

  • kernel: USB: serial: mxuport: fix memory corruption with small endpoint (CVE-2026-63899)

  • kernel: bridge: mcast: Fix a possible use-after-free when removing a bridge port (CVE-2026-64032)

  • kernel: tcp: fix stale per-CPU tcp_tw_isn leak enabling ISN prediction (CVE-2026-64024)

  • kernel: usb: typec: tcpm: bound altmode_desc[] per iteration in svdm_consume_modes() (CVE-2026-63962)

  • kernel: Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close (CVE-2026-63974)

  • kernel: ipv4: raw: reject IP_HDRINCL packets with ihl < 5 (CVE-2026-64114)

  • kernel: ipv4: fib: free fib_alias with kfree_rcu() on insert error path (CVE-2026-64572)

  • kernel: Bluetooth: hci_sync: Fix advertising data UAFs (CVE-2026-74509)

  • kernel: Linux kernel: Denial of Service due to incorrect GSO state handling in network fragment reassembly (CVE-2026-80590)

  • kernel: smb: client: fix OOB read/write from unvalidated DataOffset in coalesce_t2() (CVE-2026-89633)

  • kernel: perf: Fix addr_filter_ranges lifetime (CVE-2026-93817)

  • kernel: kernel: strparser: use-after-free via msg_timer_work rearm after strp_done() cancellation ()

  • kernel: exec: Cleanup POSIX timers right after de_thread() (CVE-2026-98260)

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

Bug Fix(es) and Enhancement(s):

  • Batch: z-stream xfrm - rhel-9.8.z (NST-Core-26W38) (JIRA:Rocky Linux-256697)

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-2026:86033"
}
References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:9 / kernel

Package

Name
kernel
Purl
pkg:rpm/rocky-linux/kernel?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:5.14.0-687.59.1.el9_8
Database specific
Show details 
{
    "yum_repository":  "BaseOS"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:86033.json"