RHSA-2026:59473HighCVSS 7.1

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Published
August 25, 2026
Last Modified
August 26, 2026

🔗 CVE IDs covered (5)

CVE-2026-63888 →CVE-2026-31411 →CVE-2026-43051 →CVE-2026-46054 →CVE-2026-53016 →

📋 Description

CVE-2026-31411 — kernel: net: atm: fix crash due to unvalidated vcc pointer in sigd_send() CVE-2026-43051 — kernel: HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq CVE-2026-46054 — kernel: selinux: fix overlayfs mmap() and mprotect() access checks CVE-2026-53016 — kernel: crypto: ccp - copy IV using skcipher ivsize CVE-2026-63888 — kernel: scsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd()

🎯 Affected products52

  • Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • bpftool-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • bpftool-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • bpftool-debuginfo-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • bpftool-debuginfo-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-0:4.18.0-372.208.1.el8_6.src as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-0:4.18.0-372.208.1.el8_6.src as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-abi-stablelists-0:4.18.0-372.208.1.el8_6.noarch as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-abi-stablelists-0:4.18.0-372.208.1.el8_6.noarch as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-core-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-core-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-core-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-core-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-debuginfo-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-debuginfo-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-devel-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-devel-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-modules-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-modules-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-modules-extra-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-modules-extra-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debuginfo-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debuginfo-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debuginfo-common-x86_64-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debuginfo-common-x86_64-0:4.18.0-372.208.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • +22 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Red Hat recommends treating all kernel errata as security-relevant. Given the kernel's fundamental role, any bug has a higher chance of impacting system security, even if that impact only becomes clear after a fix is published. Therefore, Red Hat prioritizes delivering fixes that improve our customers' overall security posture. Because of this proactive approach, a patch may be associated with a CVE assignment at a future date. Retroactive CVE assignments are always documented in the corresponding errata and on Red Hat's CVE pages. We strongly advise against delaying updates, as doing so may leave your system exposed when protections are already available. Workaround: To mitigate this issue, prevent module ccp-crypto from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.

🔗 References (8)