CVE-2026-17523

bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: m...

CVE-2026-17523 is fixed in 38 products on 1 platform, first by DEBIAN-CVE-2026-17523, released July 27, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.8
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0017
5th percentile

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: mm/slub: avoid accessing metadata when pointer is invalid in object_err() (CVE-2025-39902) * kernel: drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set() (CVE-2026-43206) * kernel: crypto: ccp - copy IV using skcipher ivsize (CVE-2026-53016) * kernel: drm/amd/display: Clamp VBIOS HDMI retimer register count to array size (CVE-2026-53136) * kernel: drm/amd/display: Use krealloc_array() in dal_vector_reserve() (CVE-2026-53329) * kernel: drm/amdgpu: zero-initialize GART table on allocation (CVE-2026-53374) * kernel: drm/i915: Fix potential UAF in TTM object purge (CVE-2026-63884) * kernel: drm/amdgpu: fix amdgpu_hmm_range_get_pages (CVE-2026-63879) * kernel: drm/amd/display: Validate payload length and link_index in dc_process_dmub_aux_transfer_async (CVE-2026-64219) * kernel: can:bcm: arbitrary kernel code execution leading to escalate privileges (CVE-2026-17523) Bug Fix(es) and Enhancement(s): * Backport "sched/deadline: Fix bandwidth reclaim equation in GRUB" to RHEL 8.10 (JIRA:RHEL-189997) * vhost: reset the vring metadata cache on vring reconfiguration [rhel-8.10.z] (JIRA:RHEL-224556) 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.

Where it's fixed

ProductFixed inFixReleased
Linux
bpftool · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
bpftool · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
bpftool · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel · rocky 8 0:4.18.0-553.156.1.el8_10 RLSA-2026:55764 Aug 18, 2026
kernel-abi-stablelists · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-abi-stablelists · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-abi-stablelists · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel-core · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-core · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-core · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel-cross-headers · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-cross-headers · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel-debug · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-debug · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-debug · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel-debug-core · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-debug-core · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-debug-core · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel-debug-devel · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-debug-devel · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-debug-devel · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel-debug-modules · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-debug-modules · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-debug-modules · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel-debug-modules-extra · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-debug-modules-extra · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-debug-modules-extra · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel-devel · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-devel · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-devel · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel-doc · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-doc · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-doc · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel-headers · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-headers · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel-modules · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-modules · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-modules · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel-modules-extra · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-modules-extra · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-modules-extra · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel-rt · RHEL 8 0:4.18.0-553.156.1.rt7.497.el8_10 RHSA-2026:55765 Aug 19, 2026
kernel-rt · almalinux 8 4.18.0-553.156.1.rt7.497.el8_10 ALSA-2026:55765 Aug 17, 2026
kernel-rt · rocky 8 0:4.18.0-553.156.1.rt7.497.el8_10 RLSA-2026:55765 Aug 18, 2026
kernel-rt-core · RHEL 8 0:4.18.0-553.156.1.rt7.497.el8_10 RHSA-2026:55765 Aug 19, 2026
kernel-rt-core · almalinux 8 4.18.0-553.156.1.rt7.497.el8_10 ALSA-2026:55765 Aug 17, 2026
kernel-rt-debug · RHEL 8 0:4.18.0-553.156.1.rt7.497.el8_10 RHSA-2026:55765 Aug 19, 2026
kernel-rt-debug · almalinux 8 4.18.0-553.156.1.rt7.497.el8_10 ALSA-2026:55765 Aug 17, 2026
kernel-rt-debug-core · RHEL 8 0:4.18.0-553.156.1.rt7.497.el8_10 RHSA-2026:55765 Aug 19, 2026
kernel-rt-debug-core · almalinux 8 4.18.0-553.156.1.rt7.497.el8_10 ALSA-2026:55765 Aug 17, 2026
kernel-rt-debug-devel · RHEL 8 0:4.18.0-553.156.1.rt7.497.el8_10 RHSA-2026:55765 Aug 19, 2026
kernel-rt-debug-devel · almalinux 8 4.18.0-553.156.1.rt7.497.el8_10 ALSA-2026:55765 Aug 17, 2026
kernel-rt-debug-kvm · RHEL 8 0:4.18.0-553.156.1.rt7.497.el8_10 RHSA-2026:55765 Aug 19, 2026
kernel-rt-debug-modules · RHEL 8 0:4.18.0-553.156.1.rt7.497.el8_10 RHSA-2026:55765 Aug 19, 2026
kernel-rt-debug-modules · almalinux 8 4.18.0-553.156.1.rt7.497.el8_10 ALSA-2026:55765 Aug 17, 2026
kernel-rt-debug-modules-extra · RHEL 8 0:4.18.0-553.156.1.rt7.497.el8_10 RHSA-2026:55765 Aug 19, 2026
kernel-rt-debug-modules-extra · almalinux 8 4.18.0-553.156.1.rt7.497.el8_10 ALSA-2026:55765 Aug 17, 2026
kernel-rt-devel · RHEL 8 0:4.18.0-553.156.1.rt7.497.el8_10 RHSA-2026:55765 Aug 19, 2026
kernel-rt-devel · almalinux 8 4.18.0-553.156.1.rt7.497.el8_10 ALSA-2026:55765 Aug 17, 2026
kernel-rt-kvm · RHEL 8 0:4.18.0-553.156.1.rt7.497.el8_10 RHSA-2026:55765 Aug 19, 2026
kernel-rt-modules · RHEL 8 0:4.18.0-553.156.1.rt7.497.el8_10 RHSA-2026:55765 Aug 19, 2026
kernel-rt-modules · almalinux 8 4.18.0-553.156.1.rt7.497.el8_10 ALSA-2026:55765 Aug 17, 2026
kernel-rt-modules-extra · RHEL 8 0:4.18.0-553.156.1.rt7.497.el8_10 RHSA-2026:55765 Aug 19, 2026
kernel-rt-modules-extra · almalinux 8 4.18.0-553.156.1.rt7.497.el8_10 ALSA-2026:55765 Aug 17, 2026
kernel-tools · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-tools · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-tools · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel-tools-libs · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-tools-libs · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-tools-libs · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel-tools-libs-devel · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-tools-libs-devel · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-tools-libs-devel · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
kernel-zfcpdump · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-zfcpdump · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-zfcpdump-core · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-zfcpdump-core · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-zfcpdump-devel · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-zfcpdump-devel · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-zfcpdump-modules · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-zfcpdump-modules · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
kernel-zfcpdump-modules-extra · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
kernel-zfcpdump-modules-extra · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
linux · Debian 12.15 (bookworm) 5.4.6-1 DEBIAN-CVE-2026-17523 Jul 27, 2026
linux · Debian 13.5 (trixie) 5.4.6-1 DEBIAN-CVE-2026-17523 Jul 27, 2026
linux · Debian 14 5.4.6-1 DEBIAN-CVE-2026-17523 Jul 27, 2026
perf · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
perf · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
perf · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026
python3-perf · RHEL 8 0:4.18.0-553.156.1.el8_10 RHSA-2026:55764 Aug 19, 2026
python3-perf · almalinux 8 4.18.0-553.156.1.el8_10 ALSA-2026:55764 Aug 17, 2026
python3-perf · ol 8 0:4.18.0-553.156.1.el8_10 ELSA-2026-55764 Aug 20, 2026

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