CVE-2026-68427

gpu: host1x: Fix use-after-free in host1x_bo_clear_cached_mappings

CVE-2026-68427 is fixed in 52 products on 1 platform, first by DEBIAN-CVE-2026-68427, released August 11, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.8
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0013
2nd percentile

In the Linux kernel, the following vulnerability has been resolved: gpu: host1x: Fix use-after-free in host1x_bo_clear_cached_mappings __host1x_bo_unpin() drops the last reference to the mapping and frees it, so we can't dereference mapping afterwards. The cache itself outlives the mapping, so use the cache local variable instead.

Where it's fixed

ProductFixed inFixReleased
Linux
dtb-aarch64 · opensuse-leap 16.0 6.12.0-160000.38.1 OPENSUSE-SU-2026:21910-1 Sep 22, 2026
kernel-64kb · opensuse-leap 16.0 6.12.0-160000.38.1 OPENSUSE-SU-2026:21910-1 Sep 22, 2026
kernel-64kb · sles 15.7 6.4.0-150700.53.81.1 SUSE-SU-2026:4254-1 Oct 7, 2026
kernel-64kb · sles 16.0 6.12.0-160000.38.1 SUSE-SU-2026:23902-1 Sep 22, 2026
kernel-azure · opensuse-leap 16.0 6.12.0-160000.38.1 OPENSUSE-SU-2026:21910-1 Sep 22, 2026
kernel-azure · sles 15.7 6.4.0-150700.53.81.1 SUSE-SU-2026:4254-1 Oct 7, 2026
kernel-azure · sles 16.0 6.12.0-160000.38.1 SUSE-SU-2026:23902-1 Sep 22, 2026
kernel-default · opensuse-leap 16.0 6.12.0-160000.38.1 OPENSUSE-SU-2026:21910-1 Sep 22, 2026
kernel-default · sles 15.7 6.4.0-150700.53.81.1 SUSE-SU-2026:4254-1 Oct 7, 2026
kernel-default · sles 16.0 6.12.0-160000.38.1 SUSE-SU-2026:23902-1 Sep 22, 2026
kernel-default-base · opensuse-leap 16.0 6.12.0-160000.38.1.160000.2.22 OPENSUSE-SU-2026:21910-1 Sep 22, 2026
kernel-default-base · sles 15.7 6.4.0-150700.53.81.1.150700.17.45.1 SUSE-SU-2026:4254-1 Oct 7, 2026
kernel-default-base · sles 16.0 6.12.0-160000.38.1.160000.2.23 SUSE-SU-2026:23902-1 Sep 22, 2026
kernel-docs · opensuse-leap 16.0 6.12.0-160000.38.1 OPENSUSE-SU-2026:21910-1 Sep 22, 2026
kernel-docs · sles 15.7 6.4.0-150700.53.81.1 SUSE-SU-2026:4254-1 Oct 7, 2026
kernel-docs · sles 16.0 6.12.0-160000.38.1 SUSE-SU-2026:23902-1 Sep 22, 2026
kernel-kvmsmall · opensuse-leap 16.0 6.12.0-160000.38.1 OPENSUSE-SU-2026:21910-1 Sep 22, 2026
kernel-kvmsmall · sles 16.0 6.12.0-160000.38.1 SUSE-SU-2026:23902-1 Sep 22, 2026
kernel-livepatch-SLE15-SP7-RT_Update_20 · sles 15.7 1-150700.1.3.1 SUSE-SU-2026:4120-1 Sep 10, 2026
kernel-livepatch-SLE15-SP7_Update_21 · sles 15.7 1-150700.15.3.1 SUSE-SU-2026:4254-1 Oct 7, 2026
kernel-obs-build · opensuse-leap 16.0 6.12.0-160000.38.1 OPENSUSE-SU-2026:21910-1 Sep 22, 2026
kernel-obs-build · sles 15.7 6.4.0-150700.53.81.1 SUSE-SU-2026:4254-1 Oct 7, 2026
kernel-obs-qa · opensuse-leap 16.0 6.12.0-160000.38.1 OPENSUSE-SU-2026:21910-1 Sep 22, 2026
kernel-obs-qa · sles 16.0 6.12.0-160000.38.1 SUSE-SU-2026:23902-1 Sep 22, 2026
kernel-rt · opensuse-leap 16.0 6.12.0-160000.38.1 OPENSUSE-SU-2026:21910-1 Sep 22, 2026
kernel-source · opensuse-leap 16.0 6.12.0-160000.38.1 OPENSUSE-SU-2026:21910-1 Sep 22, 2026
kernel-source · sles 15.7 6.4.0-150700.53.81.1 SUSE-SU-2026:4254-1 Oct 7, 2026
kernel-source · sles 16.0 6.12.0-160000.38.1 SUSE-SU-2026:23902-1 Sep 22, 2026
kernel-syms · opensuse-leap 16.0 6.12.0-160000.38.1 OPENSUSE-SU-2026:21910-1 Sep 22, 2026
kernel-syms · sles 15.7 6.4.0-150700.53.81.1 SUSE-SU-2026:4254-1 Oct 7, 2026
kernel-syms · sles 16.0 6.12.0-160000.38.1 SUSE-SU-2026:23902-1 Sep 22, 2026
kernel-uek · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-core · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-core · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-core · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-core · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-devel · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-devel · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-modules · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-modules · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-modules-core · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-modules-core · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-modules-deprecated · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-modules-deprecated · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-modules-desktop · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-modules-desktop · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-modules-extra · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-modules-extra · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-modules-extra-netfilter · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-modules-extra-netfilter · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-modules-usb · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-modules-usb · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-modules-wireless · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-debug-modules-wireless · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-devel · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-devel · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-doc · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-doc · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-modules · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-modules · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-modules-core · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-modules-core · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-modules-deprecated · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-modules-deprecated · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-modules-desktop · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-modules-desktop · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-modules-extra · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-modules-extra · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-modules-extra-netfilter · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-modules-extra-netfilter · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-modules-usb · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-modules-usb · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-modules-wireless · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-modules-wireless · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-tools · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek-tools · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-core · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-core · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-devel · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-devel · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-modules · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-modules · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-modules-core · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-modules-core · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-modules-deprecated · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-modules-deprecated · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-modules-desktop · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-modules-desktop · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-modules-extra · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-modules-extra · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-modules-extra-netfilter · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-modules-extra-netfilter · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-modules-usb · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-modules-usb · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-modules-wireless · ol 10 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-uek64k-modules-wireless · ol 9 0:6.12.0-206.104.3.3.el9uek ELSA-2026-500248 Sep 4, 2026
kernel-zfcpdump · opensuse-leap 16.0 6.12.0-160000.38.1 OPENSUSE-SU-2026:21910-1 Sep 22, 2026
kernel-zfcpdump · sles 15.7 6.4.0-150700.53.81.1 SUSE-SU-2026:4254-1 Oct 7, 2026
kernel-zfcpdump · sles 16.0 6.12.0-160000.38.1 SUSE-SU-2026:23902-1 Sep 22, 2026
linux · Debian 12.15 (bookworm) 6.1.187-1 DEBIAN-CVE-2026-68427 Aug 11, 2026
linux · Debian 13.5 (trixie) 6.12.101-1 DEBIAN-CVE-2026-68427 Aug 11, 2026
linux · Debian 14 7.1.6-1 DEBIAN-CVE-2026-68427 Aug 11, 2026
linux-6.12 · Debian 12.15 (bookworm) 6.12.101-1~deb12u1 DEBIAN-CVE-2026-68427 Aug 11, 2026

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