In the Linux kernel, the following vulnerability has been resolved:
do_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak
syzbot identified a kernel information leak vulnerability in do_sys_name_to_handle() and issued the following report [1].
[1] "BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline] BUG: KMSAN: kernel-infoleak in _copy_to_user+0xbc/0x100 lib/usercopy.c:40 instrument_copy_to_user include/linux/instrumented.h:114 [inline] _copy_to_user+0xbc/0x100 lib/usercopy.c:40 copy_to_user include/linux/uaccess.h:191 [inline] do_sys_name_to_handle fs/fhandle.c:73 [inline] __do_sys_name_to_handle_at fs/fhandle.c:112 [inline] __se_sys_name_to_handle_at+0x949/0xb10 fs/fhandle.c:94 __x64_sys_name_to_handle_at+0xe4/0x140 fs/fhandle.c:94 ...
Uninit was created at: slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768 slab_alloc_node mm/slub.c:3478 [inline] __kmem_cache_alloc_node+0x5c9/0x970 mm/slub.c:3517 __do_kmalloc_node mm/slab_common.c:1006 [inline] __kmalloc+0x121/0x3c0 mm/slab_common.c:1020 kmalloc include/linux/slab.h:604 [inline] do_sys_name_to_handle fs/fhandle.c:39 [inline] __do_sys_name_to_handle_at fs/fhandle.c:112 [inline] __se_sys_name_to_handle_at+0x441/0xb10 fs/fhandle.c:94 __x64_sys_name_to_handle_at+0xe4/0x140 fs/fhandle.c:94 ...
Bytes 18-19 of 20 are uninitialized Memory access of size 20 starts at ffff888128a46380 Data copied to user address 0000000020000240"
Per Chuck Lever's suggestion, use kzalloc() instead of kmalloc() to solve the problem.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-debug-develUpgrade kernel-rt-debug-coreUpgrade perfUpgrade python3-perfUpgrade kernel-rt-modules-extraUpgrade kernel-rt-kvmUpgrade kernel-headersUpgrade kernel-develUpgrade kernel-rt-coreUpgrade kernel-tools-libs-develUpgrade kernelUpgrade bpftoolUpgrade kernel-cross-headersUpgrade kernel-rt-debugUpgrade kernel-debug-coreUpgrade kernel-rtUpgrade kernel-rt-debug-modules-extraUpgrade kernel-abi-stablelistsUpgrade kernel-rt-modulesUpgrade kernel-rt-develUpgrade kernel-rt-debug-kvmUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-rt-debug-develUpgrade kernel-toolsUpgrade kernel-zfcpdumpUpgrade kernel-zfcpdump-develUpgrade kernel-modules-extraUpgrade kernel-modulesUpgrade kernel-debugUpgrade kernel-tools-libsUpgrade kernel-debug-modulesUpgrade kernel-docUpgrade kernel-rt-debug-modulesUpgrade kernel-zfcpdump-modulesUpgrade kernel-zfcpdump-coreUpgrade kernel-debug-modules-extraUpgrade kernel-core | Jun 6, 2024 | Apr 17, 2024 |
| Amazon Linux Ami 2 | — | Upgrade python-perfUpgrade kernel-tools-develUpgrade bpftoolUpgrade kernel-debuginfo-common-aarch64Upgrade kernelUpgrade kernel-livepatch-5.10.214-202.855Upgrade perfUpgrade kernel-toolsUpgrade bpftool-debuginfoUpgrade kernel-debuginfoUpgrade kernel-livepatch-4.14.343-259.562Upgrade kernel-livepatch-5.15.153-100.162Upgrade python-perf-debuginfoUpgrade perf-debuginfoUpgrade kernel-headersUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-tools-debuginfoUpgrade kernel-devel | Aug 19, 2024 | Apr 17, 2024 |
| Amazon_linux_2023 | — | Upgrade python3-perfUpgrade kernel-modules-extra-commonUpgrade kernel-libbpf-staticUpgrade kernel-libbpf-develUpgrade kernel-headersUpgrade kernel-tools-develUpgrade perfUpgrade kernel-toolsUpgrade kernel-livepatch-6.1.84-99.169Upgrade perf-debuginfoUpgrade kernelUpgrade kernel-libbpfUpgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade python3-perf-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-develUpgrade kernel-modules-extraUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade bpftool | Feb 17, 2025 | Apr 17, 2024 |
| Debian | — | Upgrade linux | May 8, 2024 | Apr 17, 2024 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade kernelUpgrade python3-perfUpgrade kernel-tools-libs | Jul 16, 2024 | Apr 17, 2024 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernel-abi-stablelistsUpgrade python3-perfUpgrade bpftoolUpgrade kernel | Jun 26, 2024 | Apr 17, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade python3-perfUpgrade bpftoolUpgrade kernelUpgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libs | Oct 8, 2024 | Apr 17, 2024 |
| Huawei Euleros 2_0_sp8 | — | Upgrade kernel-toolsUpgrade kernel-develUpgrade kernelUpgrade kernel-tools-libsUpgrade python3-perfUpgrade bpftoolUpgrade perfUpgrade kernel-headersUpgrade python-perf | Jul 23, 2024 | Apr 17, 2024 |
| Huawei Euleros 2_0_sp9 | — | Upgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernelUpgrade python3-perf | Jul 17, 2024 | Apr 17, 2024 |
| Oracle_linux | — | Upgrade kernel | Jun 6, 2024 | Apr 17, 2024 |
| Redhat_linux | — | Upgrade kernel-rtNo solution existsUpgrade kernel | Jun 6, 2024 | Apr 17, 2024 |
| Rocky_linux | — | Upgrade kernel-rtUpgrade perfUpgrade bpftoolUpgrade kernel-rt-develUpgrade kernel-rt-debugUpgrade bpftool-debuginfoUpgrade kernel-tools-libsUpgrade kernel-rt-modules-extraUpgrade kernel-rt-modulesUpgrade python3-perf-debuginfoUpgrade kernel-tools-libs-develUpgrade kernel-rt-debug-coreUpgrade kernel-rt-debuginfoUpgrade kernel-rt-debug-debuginfoUpgrade kernel-debug-modules-extraUpgrade kernel-rt-kvmUpgrade kernel-toolsUpgrade kernel-debug-develUpgrade kernel-debug-debuginfoUpgrade kernel-debuginfoUpgrade kernel-debugUpgrade kernel-debug-modulesUpgrade kernel-tools-debuginfoUpgrade kernel-rt-debug-modules-extraUpgrade kernel-rt-debug-kvmUpgrade kernel-develUpgrade kernel-coreUpgrade python3-perfUpgrade kernel-rt-debug-develUpgrade kernel-modules-extraUpgrade kernel-modulesUpgrade kernel-headersUpgrade kernel-rt-debuginfo-common-x86_64Upgrade kernel-rt-coreUpgrade kernel-debug-coreUpgrade kernel-cross-headersUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade perf-debuginfoUpgrade kernel-rt-debug-modules | Jun 17, 2024 | Apr 17, 2024 |
| Suse | — | Upgrade dtb-rockchipUpgrade kselftests-kmp-azureUpgrade kernel-default-baseUpgrade dtb-socionextUpgrade kernel-rt-livepatchUpgrade kernel-debug-vdsoUpgrade kernel-defaultUpgrade dtb-caviumUpgrade dtb-renesasUpgrade dtb-appleUpgrade kernel-debugUpgrade ocfs2-kmp-64kbUpgrade cluster-md-kmp-64kbUpgrade reiserfs-kmp-rtUpgrade reiserfs-kmp-64kbUpgrade kernel-docs-htmlUpgrade dtb-allwinnerUpgrade cluster-md-kmp-rtUpgrade dlm-kmp-defaultUpgrade kernel-source-rtUpgrade kernel-source-vanillaUpgrade kernel-default-livepatchUpgrade kernel-rt_debug-livepatch-develUpgrade dtb-xilinxUpgrade gfs2-kmp-defaultUpgrade kernel-64kb-develUpgrade kernel-rt_debug-develUpgrade kselftests-kmp-rtUpgrade reiserfs-kmp-azureUpgrade kernel-rt-develUpgrade dlm-kmp-rtUpgrade kernel-default-livepatch-develUpgrade kernel-rt-optionalUpgrade dtb-amdUpgrade ocfs2-kmp-defaultUpgrade kernel-64kb-extraUpgrade kernel-azureUpgrade dtb-hisiliconUpgrade dtb-alteraUpgrade reiserfs-kmp-defaultUpgrade dtb-nvidiaUpgrade kernel-docsUpgrade gfs2-kmp-azureUpgrade dtb-sprdUpgrade kernel-rt-vdsoUpgrade dtb-broadcomUpgrade kernel-azure-optionalUpgrade kernel-default-optionalUpgrade ocfs2-kmp-azureUpgrade kernel-obs-buildUpgrade kernel-rt-extraUpgrade kernel-debug-develUpgrade kernel-develUpgrade kernel-debug-livepatch-develUpgrade kernel-default-extraUpgrade dlm-kmp-64kbUpgrade kernel-syms-rtUpgrade kernel-rt-livepatch-develUpgrade kernel-kvmsmallUpgrade dtb-marvellUpgrade dtb-mediatekUpgrade kernel-rt_debugUpgrade kernel-azure-livepatch-develUpgrade kernel-azure-extraUpgrade kselftests-kmp-64kbUpgrade kernel-64kbUpgrade kernel-rtUpgrade kernel-64kb-optionalUpgrade kernel-devel-azureUpgrade kernel-kvmsmall-develUpgrade kernel-macrosUpgrade kernel-symsUpgrade kselftests-kmp-defaultUpgrade kernel-azure-develUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-sourceUpgrade dtb-exynosUpgrade kernel-obs-qaUpgrade kernel-default-vdsoUpgrade kernel-64kb-livepatch-develUpgrade dlm-kmp-azureUpgrade dtb-freescaleUpgrade dtb-amlogicUpgrade dtb-lgUpgrade kernel-zfcpdumpUpgrade dtb-armUpgrade kernel-default-develUpgrade cluster-md-kmp-azureUpgrade kernel-azure-baseUpgrade kernel-source-azureUpgrade gfs2-kmp-64kbUpgrade cluster-md-kmp-defaultUpgrade kernel-kvmsmall-vdsoUpgrade kernel-default-manUpgrade kernel-devel-rtUpgrade kernel-azure-vdsoUpgrade gfs2-kmp-rtUpgrade dtb-apmUpgrade kernel-syms-azureUpgrade kernel-default-base-rebuildUpgrade dtb-qcomUpgrade ocfs2-kmp-rtUpgrade kernel-rt_debug-vdsoUpgrade dtb-amazon | May 15, 2024 | Apr 17, 2024 |
| Ubuntu | — | Upgrade linux-image-4.15.0-227-lowlatencyUpgrade linux-image-gkeop-5.4Upgrade linux-image-aws-lts-18.04Upgrade linux-image-6.8.0-35-lowlatencyUpgrade linux-image-5.15.0-1066-azureUpgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-6.8.0-1006-oemUpgrade linux-image-gkeop-5.15Upgrade linux-image-genericUpgrade linux-image-5.15.0-1058-intel-iotgUpgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-4.15.0-1164-gcpUpgrade linux-image-6.8.0-1009-awsUpgrade linux-image-gkeUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-5.4.0-1127-oracleUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-4.4.0-1134-awsUpgrade linux-image-lowlatency-64kUpgrade linux-image-5.4.0-1128-awsUpgrade linux-image-6.8.0-1004-gkeUpgrade linux-image-oem-20.04cUpgrade linux-image-virtual-lts-xenialUpgrade linux-image-generic-lpaeUpgrade linux-image-generic-64kUpgrade linux-image-oracle-lts-18.04Upgrade linux-image-oem-20.04Upgrade linux-image-raspi-hwe-18.04Upgrade linux-image-gcp-lts-20.04Upgrade linux-image-generic-lts-xenialUpgrade linux-image-5.15.0-1046-gkeopUpgrade linux-image-5.15.0-112-generic-64kUpgrade linux-image-intel-iotgUpgrade linux-image-5.4.0-1133-azureUpgrade linux-image-4.4.0-257-genericUpgrade linux-image-intelUpgrade linux-image-5.15.0-1057-ibmUpgrade linux-image-oem-osp1Upgrade linux-image-6.8.0-35-genericUpgrade linux-image-5.15.0-1060-gkeUpgrade linux-image-5.4.0-1112-raspiUpgrade linux-image-azure-lts-18.04Upgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-gcpUpgrade linux-image-gcp-lts-18.04Upgrade linux-image-oem-24.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-6.8.0-35-lowlatency-64kUpgrade linux-image-bluefieldUpgrade linux-image-4.4.0-257-lowlatencyUpgrade linux-image-4.15.0-1170-awsUpgrade linux-image-5.15.0-1058-raspiUpgrade linux-image-oemUpgrade linux-image-5.15.0-1060-kvmUpgrade linux-image-nvidiaUpgrade linux-image-generic-hwe-16.04Upgrade linux-image-oracle-64kUpgrade linux-image-virtual-hwe-18.04Upgrade linux-image-5.4.0-1088-bluefieldUpgrade linux-image-oracleUpgrade linux-image-gkeopUpgrade linux-image-lowlatency-hwe-16.04Upgrade linux-image-5.15.0-1030-xilinx-zynqmpUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-oracle-lts-20.04Upgrade linux-image-azure-lts-22.04Upgrade linux-image-virtualUpgrade linux-image-oem-24.04aUpgrade linux-image-4.15.0-1133-oracleUpgrade linux-image-6.8.0-1006-oracle-64kUpgrade linux-image-5.4.0-189-genericUpgrade linux-image-6.8.0-1006-ibmUpgrade linux-image-kvmUpgrade linux-image-5.15.0-1065-azure-fdeUpgrade linux-image-lowlatencyUpgrade linux-image-ibmUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-5.4.0-189-lowlatencyUpgrade linux-image-5.15.0-1063-awsUpgrade linux-image-awsUpgrade linux-image-5.15.0-112-generic-lpaeUpgrade linux-image-gke-5.15Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-4.4.0-1172-awsUpgrade linux-image-azure-fdeUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-4.15.0-1154-kvmUpgrade linux-image-5.15.0-1058-nvidiaUpgrade linux-image-5.15.0-112-genericUpgrade linux-image-raspi2Upgrade linux-image-5.15.0-113-generic-64kUpgrade linux-image-aws-hweUpgrade linux-image-6.8.0-1006-oracleUpgrade linux-image-5.15.0-1061-oracleUpgrade linux-image-raspi-nolpaeUpgrade linux-image-aws-lts-20.04Upgrade linux-image-azureUpgrade linux-image-azure-lts-20.04Upgrade linux-image-5.4.0-1075-ibmUpgrade linux-image-5.15.0-1058-nvidia-lowlatencyUpgrade linux-image-generic-hwe-18.04Upgrade linux-image-6.8.0-1008-azureUpgrade linux-image-4.15.0-1179-azureUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-5.15.0-110-lowlatency-64kUpgrade linux-image-5.4.0-1040-iotUpgrade linux-image-5.4.0-1047-xilinx-zynqmpUpgrade linux-image-ibm-lts-20.04Upgrade linux-image-ibm-classicUpgrade linux-image-oem-20.04dUpgrade linux-image-5.4.0-189-generic-lpaeUpgrade linux-image-lowlatency-lts-xenialUpgrade linux-image-4.15.0-227-genericUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-6.8.0-1005-raspiUpgrade linux-image-5.15.0-1062-gcpUpgrade linux-image-virtual-hwe-16.04Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-6.8.0-35-generic-64kUpgrade linux-image-4.4.0-1135-kvmUpgrade linux-image-oem-20.04bUpgrade linux-image-6.8.0-1008-azure-fdeUpgrade linux-image-5.15.0-113-genericUpgrade linux-image-raspiUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-5.4.0-1116-kvmUpgrade linux-image-5.4.0-1132-gcpUpgrade linux-image-aws-lts-22.04Upgrade linux-image-5.15.0-113-generic-lpaeUpgrade linux-image-6.8.0-1008-gcpUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-5.15.0-110-lowlatencyUpgrade linux-image-5.4.0-1095-gkeopUpgrade linux-image-5.15.0-1056-ibm | Jul 1, 2024 | Apr 17, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Apr 17, 2024 |
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