Vulnerability · Published May 6, 2026 · Assigned by Linux

CVE-2026-43206drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set()

High 7.8

In plain English

A high-severity out-of-bounds write in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.1%top 96.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set() The kfd_event_page_set() function writes KFD_SIGNAL_EVENT_LIMIT * 8 bytes via memset without checking the buffer size parameter. This allows unprivileged userspace to trigger an out-of bounds kernel memory write by passing a small buffer, leading to potential privilege escalation.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:10kernel6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-64k6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-64k5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-64k-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-64k-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-64k-debug6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-64k-debug5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-64k-debug-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-64k-debug-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-64k-debug-devel6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-64k-debug-devel5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-64k-debug-devel-matched6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-64k-debug-devel-matched5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-64k-debug-modules6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-64k-debug-modules5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-64k-debug-modules-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-64k-debug-modules-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-64k-debug-modules-extra6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-64k-debug-modules-extra5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-64k-devel6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-64k-devel5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-64k-devel-matched6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-64k-devel-matched5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-64k-modules6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-64k-modules5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-64k-modules-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-64k-modules-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-64k-modules-extra6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-64k-modules-extra5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-abi-stablelists6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-abi-stablelists4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-abi-stablelists5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-core4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-cross-headers6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-cross-headers4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-cross-headers5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-debug6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-debug4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-debug5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-debug-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-debug-core4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-debug-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-debug-devel6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-debug-devel4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-debug-devel5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-debug-devel-matched6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-debug-devel-matched5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-debug-modules6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-debug-modules4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-debug-modules5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-debug-modules-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-debug-modules-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-debug-modules-extra6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-debug-modules-extra5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-debug-uki-virt6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-debug-uki-virt5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-devel6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-devel4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-devel5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-devel-matched6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-devel-matched5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-doc6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-doc4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-doc5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-headers6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-headers4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-headers5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-modules6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-modules4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-modules5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-modules-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-modules-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-modules-extra6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-modules-extra4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-modules-extra5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-modules-extra-matched6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:10kernel-rt6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-rt4.18.0-553.156.1.rt7.497.el8_10ALSA-2026:55765
AlmaLinux:9kernel-rt5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-64k6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-rt-64k5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-64k-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-rt-64k-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-64k-debug6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-rt-64k-debug5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-64k-debug-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-rt-64k-debug-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-64k-debug-devel6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-rt-64k-debug-devel5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-64k-debug-modules6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-rt-64k-debug-modules5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-64k-debug-modules-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-rt-64k-debug-modules-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-64k-debug-modules-extra6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-rt-64k-debug-modules-extra5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-64k-devel6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-rt-64k-devel5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-64k-modules6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-rt-64k-modules5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-64k-modules-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-rt-64k-modules-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-64k-modules-extra6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-rt-64k-modules-extra5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-rt-core4.18.0-553.156.1.rt7.497.el8_10ALSA-2026:55765
AlmaLinux:9kernel-rt-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-debug6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-rt-debug4.18.0-553.156.1.rt7.497.el8_10ALSA-2026:55765
AlmaLinux:9kernel-rt-debug5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-debug-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-rt-debug-core4.18.0-553.156.1.rt7.497.el8_10ALSA-2026:55765
AlmaLinux:9kernel-rt-debug-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-debug-devel6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.156.1.rt7.497.el8_10ALSA-2026:55765
AlmaLinux:9kernel-rt-debug-devel5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-debug-modules6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.156.1.rt7.497.el8_10ALSA-2026:55765
AlmaLinux:9kernel-rt-debug-modules5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-debug-modules-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-rt-debug-modules-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-debug-modules-extra6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.156.1.rt7.497.el8_10ALSA-2026:55765
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-devel6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-rt-devel4.18.0-553.156.1.rt7.497.el8_10ALSA-2026:55765
AlmaLinux:9kernel-rt-devel5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-modules6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-rt-modules4.18.0-553.156.1.rt7.497.el8_10ALSA-2026:55765
AlmaLinux:9kernel-rt-modules5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-modules-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-rt-modules-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-rt-modules-extra6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.156.1.rt7.497.el8_10ALSA-2026:55765
AlmaLinux:9kernel-rt-modules-extra5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-tools6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-tools4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-tools5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-tools-libs6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-tools-libs4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-tools-libs5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-tools-libs-devel6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-tools-libs-devel5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-uki-virt6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-uki-virt5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-uki-virt-addons6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-uki-virt-addons5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-zfcpdump6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-zfcpdump4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-zfcpdump5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-zfcpdump-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-zfcpdump-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-zfcpdump-devel6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-zfcpdump-devel5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-zfcpdump-devel-matched6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-zfcpdump-modules6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-zfcpdump-modules5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-zfcpdump-modules-core6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9kernel-zfcpdump-modules-core5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10kernel-zfcpdump-modules-extra6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10libperf6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9libperf5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10perf6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8perf4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9perf5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10python3-perf6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:8python3-perf4.18.0-553.156.1.el8_10ALSA-2026:55764
AlmaLinux:9python3-perf5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10rtla6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9rtla5.14.0-687.41.1.el9_8ALSA-2026:57252
AlmaLinux:10rv6.12.0-211.49.1.el10_2ALSA-2026:57251
AlmaLinux:9rv5.14.0-687.41.1.el9_8ALSA-2026:57252
Alpine:v3.23docker29.5.1-r0ALPINE-CVE-2026-43206
Alpine:v3.24docker29.5.1-r0ALPINE-CVE-2026-43206
Debian:12linux6.1.170-1DEBIAN-CVE-2026-43206
Debian:13linux6.12.85-1DEBIAN-CVE-2026-43206
Debian:14linux6.19.6-1DEBIAN-CVE-2026-43206
Rocky Linux:10kernel0:6.12.0-211.49.1.el10_2RLSA-2026:57251
Rocky Linux:8kernel0:4.18.0-553.156.1.el8_10RLSA-2026:55764
Rocky Linux:9kernel0:5.14.0-687.41.1.el9_8RLSA-2026:57252
Rocky Linux:8kernel-rt0:4.18.0-553.156.1.rt7.497.el8_10RLSA-2026:55765
Ubuntu:22.04:LTSlinux5.15.0-186.196UBUNTU-CVE-2026-43206
Ubuntu:24.04:LTSlinux6.8.0-134.134UBUNTU-CVE-2026-43206
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2026-43206
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-43206
Ubuntu:22.04:LTSlinux-aws5.15.0-1112.119UBUNTU-CVE-2026-43206
Ubuntu:24.04:LTSlinux-aws6.8.0-1060.63UBUNTU-CVE-2026-43206
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2026-43206

Affected products (as reported)

VendorProductVersions
Linux Linux 0fc8011f89feb8b2c3008583b777d097e1974660 – before 3e04bc310d80b46eaf481f1fefcbcb37a187412d0fc8011f89feb8b2c3008583b777d097e1974660 – before de8d7a25cd2eb5875b1d8d4fbc7fe4b4138b781f0fc8011f89feb8b2c3008583b777d097e1974660 – before b4034442cb090e4a980bdcc1540948606cbc951b0fc8011f89feb8b2c3008583b777d097e1974660 – before 4857c37c7ba9aa38b9a4c694e8bd8d0091c879400fc8011f89feb8b2c3008583b777d097e1974660 – before 75fb57efdd7863fffbc39db23e9cad7aafda26ed0fc8011f89feb8b2c3008583b777d097e1974660 – before bfcd6b53e1f4feb182952f4ff9a137c36ceaf20b0fc8011f89feb8b2c3008583b777d097e1974660 – before 4e72f419e4ed44cb3b60506752d8688c20a60a9b0fc8011f89feb8b2c3008583b777d097e1974660 – before 8a70a26c9f34baea6c3199a9862ddaff4554a96d
Linux Linux 4.17

Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References