RLSA-2026:68532

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Source
https://errata.rockylinux.org/RLSA-2026:68532
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:68532.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2026:68532
Upstream
Published
2026-09-19T06:02:23Z
Modified
2026-09-19T06:30:02Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Important: kernel-rt security update
Details

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

  • kernel: ipvlan: Make the addrs_lock be per port (CVE-2026-23103)

  • kernel: xfrm: hold dev ref until after transport_finish NF_HOOK (CVE-2026-31663)

  • kernel: netfilter: nf_conntrack_h323: fix OOB read in decode_choice() (CVE-2026-43233)

  • kernel: ipv6: prevent possible UaF in addrconf_permanent_addr() (CVE-2026-43339)

  • kernel: inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP (CVE-2026-46266)

  • kernel: flow_dissector: do not dissect PPPoE PFC frames (CVE-2026-46306)

  • kernel: netfilter: xt_policy: fix strict mode inbound policy matching (CVE-2026-52920)

  • kernel: ppp: require CAP_NET_ADMIN in target netns for unattached ioctls (CVE-2026-53075)

  • kernel: ipv6: sit: reload inner IPv6 header after GSO offloads (CVE-2026-53228)

  • kernel: IB/isert: Reject login PDUs shorter than ISER_HEADERS_LEN (CVE-2026-53176)

  • kernel: netfilter: require Ethernet MAC header before using eth_hdr() (CVE-2026-53131)

  • kernel: netfilter: conntrack_irc: fix possible out-of-bounds read (CVE-2026-53268)

  • kernel: xfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx() (CVE-2026-53239)

  • kernel: ALSA: timer: Fix UAF at snd_timer_user_params() (CVE-2026-53192)

  • kernel: net: guard timestamp cmsgs to real error queue skbs (CVE-2026-53223)

  • kernel: ipv6: mcast: Fix use-after-free when processing MLD queries (CVE-2026-53275)

  • kernel: ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table() (CVE-2026-64002)

  • 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: Linux kernel SLIP: Out-of-bounds write due to race condition during MTU change (CVE-2026-68143)

  • kernel: xfrm: fix stale skb->prev after async crypto steals a GSO segment (CVE-2026-68426)

  • kernel: net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post() (CVE-2026-72298)

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-2026:68532"
}
References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:8 / kernel-rt

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.164.1.rt7.505.el8_10
Database specific
Show details 
{
    "yum_repository": "NFV"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:68532.json"