linux: In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Flush shmem writes before mapping b...
CVE-2025-40276 is fixed in 18 products on 1 platform, first by DEBIAN-CVE-2025-40276, released December 6, 2025. It is not reported as exploited. Patch Radar priority: High.
In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Flush shmem writes before mapping buffers CPU-uncached The shmem layer zeroes out the new pages using cached mappings, and if we don't CPU-flush we might leave dirty cachelines behind, leading to potential data leaks and/or asynchronous buffer corruption when dirty cachelines are evicted.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| dtb-aarch64 · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-64kb · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-64kb · sles 15.7 | 6.4.0-150700.53.28.1 | SUSE-SU-2026:0315-1 | Jan 28, 2026 |
| kernel-64kb · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-azure · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-azure · sles 15.7 | 6.4.0-150700.20.24.1 | SUSE-SU-2026:0281-1 | Jan 23, 2026 |
| kernel-azure · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-default · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-default · sles 15.7 | 6.4.0-150700.53.28.1 | SUSE-SU-2026:0315-1 | Jan 28, 2026 |
| kernel-default · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-default-base · opensuse-leap 16.0 | 6.12.0-160000.9.1.160000.2.6 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-default-base · sles 15.7 | 6.4.0-150700.53.28.1.150700.17.19.1 | SUSE-SU-2026:0315-1 | Jan 28, 2026 |
| kernel-default-base · sles 16.0 | 6.12.0-160000.9.1.160000.2.6 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-docs · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-docs · sles 15.7 | 6.4.0-150700.53.28.1 | SUSE-SU-2026:0315-1 | Jan 28, 2026 |
| kernel-docs · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-kvmsmall · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-kvmsmall · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-livepatch-SLE15-SP7-RT_Update_8 · sles 15.7 | 1-150700.1.3.1 | SUSE-SU-2026:0278-1 | Jan 23, 2026 |
| kernel-livepatch-SLE15-SP7_Update_8 · sles 15.7 | 1-150700.15.3.1 | SUSE-SU-2026:0315-1 | Jan 28, 2026 |
| kernel-obs-build · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-obs-build · sles 15.7 | 6.4.0-150700.53.28.1 | SUSE-SU-2026:0315-1 | Jan 28, 2026 |
| kernel-obs-qa · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-obs-qa · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-rt · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-source · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-source · sles 15.7 | 6.4.0-150700.53.28.1 | SUSE-SU-2026:0315-1 | Jan 28, 2026 |
| kernel-source · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-source-azure · sles 15.7 | 6.4.0-150700.20.24.1 | SUSE-SU-2026:0281-1 | Jan 23, 2026 |
| kernel-syms · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-syms · sles 15.7 | 6.4.0-150700.53.28.1 | SUSE-SU-2026:0315-1 | Jan 28, 2026 |
| kernel-syms · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-syms-azure · sles 15.7 | 6.4.0-150700.20.24.1 | SUSE-SU-2026:0281-1 | Jan 23, 2026 |
| kernel-zfcpdump · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-zfcpdump · sles 15.7 | 6.4.0-150700.53.28.1 | SUSE-SU-2026:0315-1 | Jan 28, 2026 |
| kernel-zfcpdump · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.69-1 | DEBIAN-CVE-2025-40276 | Dec 6, 2025 |
| linux · Debian 14 | 6.17.9-1 | DEBIAN-CVE-2025-40276 | Dec 6, 2025 |
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