Vulnerability · Published Aug 10, 2026 · Assigned by Linux

CVE-2026-68257drm/amdkfd: fix 32-bit overflow in CWSR total size calculation

High 7.8

In plain English

A high-severity integer overflow 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 32-bit overflow in CWSR total size calculation total_cwsr_size was computed in 32-bit before being used as a BO/SVM allocation size. With large ctx_save_restore_area_size and debug_memory_size multiplied by the XCC count, the product can wrap, yielding an undersized CWSR save area that firmware later overruns. Promote total_cwsr_size to u64 and use check_add_overflow()/ check_mul_overflow() in both kfd_queue_acquire_buffers() and kfd_queue_release_buffers(). (cherry picked from commit 319f7e13423ae3f486b9aea82f9ad2d6af0ee608)

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:10kernel6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-64k6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-64k5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-64k-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-64k-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-64k-debug6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-64k-debug5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-64k-debug-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-64k-debug-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-64k-debug-devel6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-64k-debug-devel5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-64k-debug-devel-matched6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-64k-debug-devel-matched5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-64k-debug-modules6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-64k-debug-modules5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-64k-debug-modules-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-64k-debug-modules-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-64k-debug-modules-extra6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-64k-debug-modules-extra5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-64k-devel6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-64k-devel5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-64k-devel-matched6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-64k-devel-matched5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-64k-modules6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-64k-modules5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-64k-modules-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-64k-modules-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-64k-modules-extra6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-64k-modules-extra5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-abi-stablelists6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-abi-stablelists5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-cross-headers6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-cross-headers5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-debug6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-debug5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-debug-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-debug-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-debug-devel6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-debug-devel5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-debug-devel-matched6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-debug-devel-matched5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-debug-modules6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-debug-modules5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-debug-modules-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-debug-modules-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-debug-modules-extra6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-debug-modules-extra5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-debug-uki-virt6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-debug-uki-virt5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-devel6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-devel5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-devel-matched6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-devel-matched5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-doc6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-doc5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-headers6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-headers5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-modules6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-modules5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-modules-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-modules-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-modules-extra6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-modules-extra5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-modules-extra-matched6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:10kernel-rt6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-64k6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-64k5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-64k-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-64k-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-64k-debug6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-64k-debug5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-64k-debug-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-64k-debug-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-64k-debug-devel6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-64k-debug-devel5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-64k-debug-modules6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-64k-debug-modules5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-64k-debug-modules-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-64k-debug-modules-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-64k-debug-modules-extra6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-64k-debug-modules-extra5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-64k-devel6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-64k-devel5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-64k-modules6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-64k-modules5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-64k-modules-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-64k-modules-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-64k-modules-extra6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-64k-modules-extra5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-debug6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-debug5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-debug-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-debug-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-debug-devel6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-debug-devel5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-debug-modules6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-debug-modules5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-debug-modules-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-debug-modules-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-debug-modules-extra6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-devel6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-devel5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-modules6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-modules5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-modules-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-modules-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-rt-modules-extra6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-rt-modules-extra5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-tools6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-tools5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-tools-libs6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-tools-libs5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-tools-libs-devel6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-tools-libs-devel5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-uki-virt6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-uki-virt5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-uki-virt-addons6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-uki-virt-addons5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-zfcpdump6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-zfcpdump5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-zfcpdump-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-zfcpdump-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-zfcpdump-devel6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-zfcpdump-devel5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-zfcpdump-devel-matched6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-zfcpdump-modules6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-zfcpdump-modules5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-zfcpdump-modules-core6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-zfcpdump-modules-core5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10kernel-zfcpdump-modules-extra6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10libperf6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9libperf5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10perf6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9perf5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10python3-perf6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9python3-perf5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10rtla6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9rtla5.14.0-687.52.1.el9_8ALSA-2026:71700
AlmaLinux:10rv6.12.0-211.60.1.el10_2ALSA-2026:71602
AlmaLinux:9rv5.14.0-687.52.1.el9_8ALSA-2026:71700
Debian:13linux6.12.101-1DEBIAN-CVE-2026-68257
Debian:14linux7.1.6-1DEBIAN-CVE-2026-68257
Debian:12linux-6.126.12.101-1~deb12u1DEBIAN-CVE-2026-68257
Rocky Linux:10kernel0:6.12.0-211.60.1.el10_2RLSA-2026:71602
Rocky Linux:9kernel0:5.14.0-687.52.1.el9_8RLSA-2026:71700
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-68257
Ubuntu:26.04:LTSlinux7.0.0-38.38UBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-68257
Ubuntu:26.04:LTSlinux-aws7.0.0-1014.14UBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-aws-7.07.0.0-1014.14~24.04.1UBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-68257
Ubuntu:26.04:LTSlinux-azure7.0.0-1017.17UBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-azure-7.07.0.0-1017.17~24.04.1UBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-68257
Ubuntu:26.04:LTSlinux-azure-fde7.0.0-1016.16UBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-azure-fde-7.07.0.0-1016.16~24.04.1UBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-68257
Ubuntu:26.04:LTSlinux-gcp7.0.0-1014.14UBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-68257
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-68257
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-68257

Affected products (as reported)

VendorProductVersions
Linux Linux 325aa07165394b8e866ffe9ec1d4c99d9195b2f2 – before b88ffe6593607364a8c06a48c6f29e55437cdf8ed15deafab5d722afb9e2f83c5edcdef9d9d98bd1 – before abce3276c57e36c955627307469b9f009057a467d15deafab5d722afb9e2f83c5edcdef9d9d98bd1 – before 865532d54eb57b660b1cb1b0e1755776ce21b849d15deafab5d722afb9e2f83c5edcdef9d9d98bd1 – before 2b0386d4293920e690c0e017708f999b93cc729b63600103d2ac5c09fdeec5b931b396e4e0efd5d86.12.59 – before 6.12.1016.17.9 – before 6.18
Linux Linux 6.18

Weakness: CWE-190 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References