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In the Linux kernel, the following vulnerability has been resolved:
efi: stmm: Fix incorrect buffer allocation method
The communication buffer allocated by setup_mm_hdr() is later on passed to tee_shm_register_kernel_buf(). The latter expects those buffers to be contiguous pages, but setup_mm_hdr() just uses kmalloc(). That can cause various corruptions or BUGs, specifically since commit 9aec2fb0fd5e ("slab: allocate frozen pages"), though it was broken before as well.
Fix this by using alloc_pages_exact() instead of kmalloc().
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Suse | — | Upgrade dtb-rockchipUpgrade dtb-hisiliconUpgrade gfs2-kmp-defaultUpgrade dtb-mediatekUpgrade kernel-docsUpgrade dtb-appleUpgrade kernel-defaultUpgrade kernel-obs-buildUpgrade kernel-rt-extraUpgrade kernel-64kb-extraUpgrade dtb-sprdUpgrade kernel-default-livepatch-develUpgrade cluster-md-kmp-64kbUpgrade kernel-rt-livepatch-develUpgrade kernel-64kb-develUpgrade kselftests-kmp-rtUpgrade kernel-docs-htmlUpgrade dlm-kmp-rtUpgrade dtb-socionextUpgrade dlm-kmp-defaultUpgrade dtb-armUpgrade dtb-marvellUpgrade kselftests-kmp-defaultUpgrade dtb-amdUpgrade dtb-nvidiaUpgrade dtb-renesasUpgrade kernel-kvmsmall-vdsoUpgrade cluster-md-kmp-defaultUpgrade dtb-alteraUpgrade dtb-freescaleUpgrade dtb-caviumUpgrade kernel-rt-develUpgrade kernel-kvmsmallUpgrade kernel-default-develUpgrade kernel-default-optionalUpgrade kernel-64kb-optionalUpgrade kernel-rt-optionalUpgrade kernel-develUpgrade dtb-xilinxUpgrade dtb-allwinnerUpgrade kselftests-kmp-64kbUpgrade dtb-lgUpgrade kernel-obs-qaUpgrade kernel-source-vanillaUpgrade kernel-macrosUpgrade dtb-qcomUpgrade dtb-amlogicUpgrade dtb-amazonUpgrade dlm-kmp-64kbUpgrade kernel-symsUpgrade cluster-md-kmp-rtUpgrade gfs2-kmp-64kbUpgrade dtb-exynosUpgrade kernel-sourceUpgrade kernel-default-vdsoUpgrade kernel-default-extraUpgrade kernel-kvmsmall-develUpgrade kernel-zfcpdumpUpgrade kernel-rt-livepatchUpgrade kernel-64kbUpgrade ocfs2-kmp-defaultUpgrade ocfs2-kmp-64kbUpgrade kernel-rtUpgrade dtb-broadcomUpgrade kernel-default-livepatchUpgrade gfs2-kmp-rtUpgrade dtb-apmUpgrade ocfs2-kmp-rtUpgrade kernel-rt-vdso | Dec 5, 2025 | Nov 6, 2025 |
| Ubuntu | — | Upgrade linux-image-gke-6.8Upgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-oracle-64kUpgrade linux-image-gke-64k-6.8Upgrade linux-image-aws-6.8Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-oem-22.04dUpgrade linux-image-kvmUpgrade linux-image-realtime-6.8.1Upgrade linux-image-gcpUpgrade linux-image-gkeopUpgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-aws-fips-6.8Upgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-aws-64k-6.8Upgrade linux-image-generic-64kUpgrade linux-image-oracle-6.8Upgrade linux-image-nvidia-6.8Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-oem-22.04cUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-raspiUpgrade linux-image-raspi-6.8Upgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-genericUpgrade linux-image-aws-lts-24.04Upgrade linux-image-gcp-64kUpgrade linux-image-nvidia-64kUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-xilinx-6.8Upgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-gcp-fipsUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-intel-iotgUpgrade linux-image-oem-22.04bUpgrade linux-image-virtual-6.8Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.8.0-106-genericUpgrade linux-image-6.8.0-106-fipsUpgrade linux-image-gke-64kUpgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-azureUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-raspi-realtimeUpgrade linux-image-ibm-6.8Upgrade linux-image-ibm-classicUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-realtimeUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-gcp-6.8Upgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-virtualUpgrade linux-image-oem-22.04aUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-azure-fipsUpgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-lowlatency-64kUpgrade linux-image-lowlatency-6.8Upgrade linux-image-azure-fips-6.8Upgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-azure-lts-24.04Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-lowlatencyUpgrade linux-image-generic-lpaeUpgrade linux-image-6.8.0-1050-awsUpgrade linux-image-awsUpgrade linux-image-6.8.0-1051-azureUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-ibmUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-gkeUpgrade linux-image-generic-64k-6.8Upgrade linux-image-aws-fipsUpgrade linux-image-fips-6.8Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-fipsUpgrade linux-image-xilinxUpgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-generic-6.8Upgrade linux-image-azure-6.8Upgrade linux-image-oracleUpgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-aws-64kUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-oem-22.04Upgrade linux-image-nvidiaUpgrade linux-image-gkeop-6.8Upgrade linux-image-6.8.0-1048-gke-64k | Mar 17, 2026 | Sep 16, 2025 |
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