RHSA-2026:65711HighCVSS 7.8

Red Hat Security Advisory: kernel security update

Published
September 9, 2026
Last Modified
September 9, 2026

🔗 CVE IDs covered (7)

CVE-2026-46056 →CVE-2026-53006 →CVE-2026-53009 →CVE-2026-53071 →CVE-2026-53196 →CVE-2026-64191 →CVE-2026-17523 →

📋 Description

CVE-2026-17523 — kernel: can:bcm: arbitrary kernel code execution leading to escalate privileges CVE-2026-46056 — kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers CVE-2026-53006 — kernel: ipv6: fix possible UAF in icmpv6_rcv() CVE-2026-53009 — kernel: ice: fix double-free of tx_buf skb CVE-2026-53071 — kernel: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp CVE-2026-53196 — kernel: USB: serial: io_ti: fix heap overflow in get_manuf_info() CVE-2026-64191 — kernel: i2c: stub: Reject I2C block transfers with invalid length

🎯 Affected products52

  • Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • bpftool-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • bpftool-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • bpftool-debuginfo-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • bpftool-debuginfo-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-0:4.18.0-372.213.1.el8_6.src as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-0:4.18.0-372.213.1.el8_6.src as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-abi-stablelists-0:4.18.0-372.213.1.el8_6.noarch as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-abi-stablelists-0:4.18.0-372.213.1.el8_6.noarch as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-core-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-core-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-core-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-core-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-debuginfo-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-debuginfo-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-devel-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-devel-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-modules-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-modules-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-modules-extra-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-modules-extra-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debuginfo-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debuginfo-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debuginfo-common-x86_64-0:4.18.0-372.213.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debuginfo-common-x86_64-0:4.18.0-372.213.1.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 vulnerability, prevent the `bcm` kernel module from loading if it is not required. Create a file named `/etc/modprobe.d/blacklist-bcm.conf` with the content `blacklist bcm`. A system reboot is required for this change to take effect. This mitigation may impact functionality that relies on the CAN BCM module. Workaround: To mitigate this issue, prevent module ice from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically. Workaround: To mitigate this issue, prevent module io_ti 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 (11)