In the Linux kernel, the following vulnerability has been resolved:
null_blk: fix validation of block size
Block size should be between 512 and PAGE_SIZE and be a power of 2. The current check does not validate this, so update the check.
Without this patch, null_blk would Oops due to a null pointer deref when loaded with bs=1536 [1].
[axboe: remove unnecessary braces and != 0 check]
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-livepatch-5.15.164-108.161Upgrade kernel-tools-develUpgrade bpftoolUpgrade kernel-develUpgrade kernelUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-5.10.223-211.872Upgrade perf-debuginfoUpgrade kernel-debuginfoUpgrade perfUpgrade kernel-tools-debuginfoUpgrade python-perfUpgrade kernel-debuginfo-common-x86_64Upgrade bpftool-debuginfoUpgrade kernel-headersUpgrade kernel-toolsUpgrade python-perf-debuginfo | Dec 12, 2024 | Jul 29, 2024 |
| Amazon_linux_2023 | — | Upgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade python3-perfUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-libbpfUpgrade kernel-toolsUpgrade kernel-develUpgrade perf-debuginfoUpgrade perfUpgrade bpftoolUpgrade kernel-modules-extraUpgrade kernel-modules-extra-commonUpgrade kernel-livepatch-6.1.102-108.177Upgrade python3-perf-debuginfoUpgrade kernel-libbpf-staticUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade kernel-headersUpgrade bpftool-debuginfoUpgrade kernel-libbpf-devel | Feb 17, 2025 | Jul 29, 2024 |
| Debian | — | Upgrade linux-6.1Upgrade linux | Aug 14, 2024 | Jul 29, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade python3-perfUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade bpftool | Nov 5, 2024 | Jul 29, 2024 |
| Oracle_linux | — | Upgrade kernel-uek | Nov 21, 2024 | Jul 29, 2024 |
| Redhat_linux | — | No solution existsUpgrade kernelUpgrade kernel-rt | Dec 5, 2024 | Jul 29, 2024 |
| Suse | — | Upgrade kernel-debug-vdsoUpgrade kernel-default-extraUpgrade kernel-kvmsmall-develUpgrade gfs2-kmp-64kbUpgrade dtb-freescaleUpgrade dlm-kmp-defaultUpgrade kernel-docsUpgrade cluster-md-kmp-64kbUpgrade dtb-socionextUpgrade dtb-lgUpgrade kernel-obs-buildUpgrade kernel-azure-extraUpgrade kernel-kvmsmall-vdsoUpgrade dtb-appleUpgrade kernel-obs-qaUpgrade dtb-amlogicUpgrade kernel-macrosUpgrade kselftests-kmp-defaultUpgrade kernel-debug-develUpgrade dlm-kmp-azureUpgrade dlm-kmp-rtUpgrade cluster-md-kmp-defaultUpgrade dtb-amdUpgrade kernel-default-develUpgrade kernel-rt-extraUpgrade kernel-source-azureUpgrade kernel-default-livepatch-develUpgrade dtb-broadcomUpgrade kernel-docs-htmlUpgrade dtb-amazonUpgrade kernel-source-vanillaUpgrade dtb-apmUpgrade kernel-source-rtUpgrade kernel-default-livepatchUpgrade kernel-64kbUpgrade kernel-64kb-extraUpgrade reiserfs-kmp-rtUpgrade dtb-hisiliconUpgrade kernel-zfcpdumpUpgrade dtb-marvellUpgrade kernel-rt-vdsoUpgrade reiserfs-kmp-defaultUpgrade kernel-defaultUpgrade kselftests-kmp-rtUpgrade kernel-rt_debugUpgrade ocfs2-kmp-64kbUpgrade kernel-rt-livepatch-develUpgrade reiserfs-kmp-64kbUpgrade kernel-azure-vdsoUpgrade kernel-64kb-optionalUpgrade dtb-renesasUpgrade kernel-azureUpgrade kernel-rt-optionalUpgrade kernel-rt_debug-vdsoUpgrade kernel-debugUpgrade kernel-syms-rtUpgrade kselftests-kmp-azureUpgrade kernel-rt_debug-develUpgrade kernel-default-baseUpgrade cluster-md-kmp-azureUpgrade dtb-sprdUpgrade dtb-alteraUpgrade dtb-caviumUpgrade kernel-develUpgrade dtb-allwinnerUpgrade dlm-kmp-64kbUpgrade kernel-kvmsmallUpgrade dtb-armUpgrade reiserfs-kmp-azureUpgrade dtb-mediatekUpgrade ocfs2-kmp-defaultUpgrade kernel-default-vdsoUpgrade gfs2-kmp-rtUpgrade gfs2-kmp-defaultUpgrade gfs2-kmp-azureUpgrade kernel-syms-azureUpgrade kernel-sourceUpgrade ocfs2-kmp-azureUpgrade kernel-azure-optionalUpgrade dtb-xilinxUpgrade kernel-azure-develUpgrade kernel-64kb-develUpgrade ocfs2-kmp-rtUpgrade kselftests-kmp-64kbUpgrade kernel-rt-develUpgrade kernel-default-base-rebuildUpgrade kernel-devel-rtUpgrade kernel-devel-azureUpgrade kernel-default-optionalUpgrade dtb-rockchipUpgrade dtb-nvidiaUpgrade cluster-md-kmp-rtUpgrade kernel-symsUpgrade dtb-qcomUpgrade kernel-rtUpgrade dtb-exynos | Dec 5, 2025 | Jun 12, 2025 |
| Ubuntu | — | Upgrade linux-image-intelUpgrade linux-image-5.15.0-125-generic-lpaeUpgrade linux-image-oem-24.04Upgrade linux-image-6.8.0-1015-oracle-64kUpgrade linux-image-5.15.0-1067-intel-iotgUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-aws-lts-22.04Upgrade linux-image-5.15.0-1065-raspiUpgrade linux-image-6.8.0-1017-gcpUpgrade linux-image-oem-22.04bUpgrade linux-image-virtualUpgrade linux-image-oracle-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-5.15.0-125-lowlatency-64kUpgrade linux-image-6.8.0-48-genericUpgrade linux-image-6.8.0-48-generic-64kUpgrade linux-image-5.15.0-1072-awsUpgrade linux-image-oem-20.04Upgrade linux-image-6.8.0-1017-nvidia-64kUpgrade linux-image-oem-24.04aUpgrade linux-image-6.8.0-1002-gkeopUpgrade linux-image-gkeopUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-5.15.0-1038-xilinx-zynqmpUpgrade linux-image-5.15.0-1069-kvmUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-5.15.0-1067-nvidiaUpgrade linux-image-6.8.0-1016-azure-fdeUpgrade linux-image-gcpUpgrade linux-image-5.15.0-125-lowlatencyUpgrade linux-image-6.8.0-1018-awsUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-6.8.0-1016-oemUpgrade linux-image-6.8.0-1015-oracleUpgrade linux-image-gkeUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-generic-64kUpgrade linux-image-oem-20.04cUpgrade linux-image-6.8.0-1014-raspiUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-ibmUpgrade linux-image-5.15.0-1075-azureUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-lowlatency-64k-hwe-24.04Upgrade linux-image-5.15.0-1070-oracleUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-ibm-classicUpgrade linux-image-oem-20.04dUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.8.0-1017-nvidia-lowlatencyUpgrade linux-image-intel-iotgUpgrade linux-image-6.8.0-1014-ibmUpgrade linux-image-kvmUpgrade linux-image-6.8.0-48-lowlatency-64kUpgrade linux-image-oem-22.04cUpgrade linux-image-oem-22.04dUpgrade linux-image-6.8.0-1017-azure-fdeUpgrade linux-image-6.8.0-1013-gkeUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.8.0-1017-nvidiaUpgrade linux-image-azureUpgrade linux-image-nvidia-64kUpgrade linux-image-generic-lpaeUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-raspiUpgrade linux-image-oracleUpgrade linux-image-oem-20.04bUpgrade linux-image-5.15.0-1067-nvidia-lowlatencyUpgrade linux-image-5.15.0-125-generic-64kUpgrade linux-image-6.8.0-48-lowlatencyUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-lowlatencyUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-5.15.0-1071-gcpUpgrade linux-image-5.15.0-125-genericUpgrade linux-image-6.8.0-1017-nvidia-lowlatency-64kUpgrade linux-image-azure-cvmUpgrade linux-image-azure-fdeUpgrade linux-image-genericUpgrade linux-image-lowlatency-64kUpgrade linux-image-gke-5.15Upgrade linux-image-6.8.0-1017-azureUpgrade linux-image-5.15.0-1069-gkeUpgrade linux-image-nvidiaUpgrade linux-image-5.15.0-1065-ibmUpgrade linux-image-gkeop-6.8Upgrade linux-image-5.15.0-1078-azureUpgrade linux-image-raspi-nolpaeUpgrade linux-image-6.8.0-1016-gcpUpgrade linux-image-5.15.0-1055-gkeopUpgrade linux-image-oem-22.04aUpgrade linux-image-lowlatency-hwe-24.04Upgrade linux-image-azure-lts-22.04Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-nvidia-6.8Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-oem-22.04Upgrade linux-image-gkeop-5.15Upgrade linux-image-6.8.0-1016-azureUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-awsUpgrade linux-image-oracle-lts-22.04 | Nov 4, 2024 | Jul 29, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 13, 2025 | Jul 29, 2024 |
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