RLSA-2026:63013

See a problem?
Please try reporting it to the source first.
Source
https://errata.rockylinux.org/RLSA-2026:63013
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:63013.json
JSON Data
https://api.test.osv.dev/v1/vulns/RLSA-2026:63013
Upstream
  • CVE-2026-63800
  • CVE-2026-74581
Published
2026-09-04T12:02:30Z
Modified
2026-09-04T12:30:02Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Important: kernel-rt security, bug fix, and enhancement 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: s390/cpum_sf: Handle CPU hotplug remove during sampling (CVE-2024-57849)

  • kernel: smc91x: fix broken irq-context in PREEMPT_RT (CVE-2025-71132)

  • kernel: bonding: alb: fix UAF in rlb_arp_recv during bond up/down (CVE-2026-45970)

  • kernel: zram: fix use-after-free in zram_bvec_write_partial() (CVE-2026-53185)

  • kernel: pNFS: Fix use-after-free in pnfs_update_layout() (CVE-2026-63800)

  • kernel: nfsd: fix posix_acl leak on SETACL decode failure (CVE-2026-53397)

  • kernel: nfsd: release layout stid on setlease failure (CVE-2026-53399)

  • kernel: NFSv4/flexfiles: reject zero filehandle version count (CVE-2026-53392)

  • kernel: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr (CVE-2026-53391)

  • kernel: net: mana: validate rx_req_idx to prevent out-of-bounds array access (CVE-2026-64018)

  • kernel: Kernel: Remote out-of-bounds write in RDMA/siw (CVE-2026-64268)

  • kernel: NFSv4: include MAY_WRITE in open permission mask for O_TRUNC (CVE-2026-64298)

  • kernel: AMD-SN-7061: Safe RET Interrupt Vulnerability (CVE-2026-68480)

  • kernel: net: ipv6: use-after-free in fib6_rule_suppress due to stale res->rt6 pointer (CVE-2026-74581)

Bug Fix(es) and Enhancement(s):

  • qede: build_skb failure causes off-by-one BD ring corruption and kernel panic [rhel-8.10.z] (JIRA:Rocky Linux-193045)

  • powerpc/pseries: lparcfg - fix kbuf[] underflow (JIRA:Rocky Linux-240144)

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-2026:63013"
}
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
0:4.18.0-553.159.1.rt7.500.el8_10
Database specific
Show details 
{
    "yum_repository":  "NFV"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:63013.json"