In the Linux kernel, the following vulnerability has been resolved:
net: mctp: unshare packets when reassembling
Ensure that the frag_list used for reassembly isn't shared with other packets. This avoids incorrect reassembly when packets are cloned, and prevents a memory leak due to circular references between fragments and their skb_shared_info.
The upcoming MCTP-over-USB driver uses skb_clone which can trigger the problem - other MCTP drivers don't share SKBs.
A kunit test is added to reproduce the issue.
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 |
|---|---|---|---|---|
| Debian | debian-upgrade-linuxno-fix-debian-deb-package | May 15, 2025 | Apr 1, 2025 | |
| Suse | — | suse-upgrade-cluster-md-kmp-64kbsuse-upgrade-cluster-md-kmp-azuresuse-upgrade-cluster-md-kmp-defaultsuse-upgrade-cluster-md-kmp-rtsuse-upgrade-dlm-kmp-64kbsuse-upgrade-dlm-kmp-azuresuse-upgrade-dlm-kmp-defaultsuse-upgrade-dlm-kmp-rtsuse-upgrade-dtb-allwinnersuse-upgrade-dtb-alterasuse-upgrade-dtb-amazonsuse-upgrade-dtb-amdsuse-upgrade-dtb-amlogicsuse-upgrade-dtb-apmsuse-upgrade-dtb-applesuse-upgrade-dtb-armsuse-upgrade-dtb-broadcomsuse-upgrade-dtb-caviumsuse-upgrade-dtb-exynossuse-upgrade-dtb-freescalesuse-upgrade-dtb-hisiliconsuse-upgrade-dtb-lgsuse-upgrade-dtb-marvellsuse-upgrade-dtb-mediateksuse-upgrade-dtb-nvidiasuse-upgrade-dtb-qcomsuse-upgrade-dtb-renesassuse-upgrade-dtb-rockchipsuse-upgrade-dtb-socionextsuse-upgrade-dtb-sprdsuse-upgrade-dtb-xilinxsuse-upgrade-gfs2-kmp-64kbsuse-upgrade-gfs2-kmp-azuresuse-upgrade-gfs2-kmp-defaultsuse-upgrade-gfs2-kmp-rtsuse-upgrade-kernel-64kbsuse-upgrade-kernel-64kb-develsuse-upgrade-kernel-64kb-extrasuse-upgrade-kernel-64kb-optionalsuse-upgrade-kernel-azuresuse-upgrade-kernel-azure-develsuse-upgrade-kernel-azure-extrasuse-upgrade-kernel-azure-optionalsuse-upgrade-kernel-azure-vdsosuse-upgrade-kernel-debugsuse-upgrade-kernel-debug-develsuse-upgrade-kernel-debug-vdsosuse-upgrade-kernel-defaultsuse-upgrade-kernel-default-basesuse-upgrade-kernel-default-base-rebuildsuse-upgrade-kernel-default-develsuse-upgrade-kernel-default-extrasuse-upgrade-kernel-default-livepatchsuse-upgrade-kernel-default-livepatch-develsuse-upgrade-kernel-default-optionalsuse-upgrade-kernel-default-vdsosuse-upgrade-kernel-develsuse-upgrade-kernel-devel-azuresuse-upgrade-kernel-devel-rtsuse-upgrade-kernel-docssuse-upgrade-kernel-docs-htmlsuse-upgrade-kernel-kvmsmallsuse-upgrade-kernel-kvmsmall-develsuse-upgrade-kernel-kvmsmall-vdsosuse-upgrade-kernel-macrossuse-upgrade-kernel-obs-buildsuse-upgrade-kernel-obs-qasuse-upgrade-kernel-rtsuse-upgrade-kernel-rt-develsuse-upgrade-kernel-rt-extrasuse-upgrade-kernel-rt-livepatch-develsuse-upgrade-kernel-rt-optionalsuse-upgrade-kernel-rt-vdsosuse-upgrade-kernel-rt_debugsuse-upgrade-kernel-rt_debug-develsuse-upgrade-kernel-rt_debug-vdsosuse-upgrade-kernel-sourcesuse-upgrade-kernel-source-azuresuse-upgrade-kernel-source-rtsuse-upgrade-kernel-source-vanillasuse-upgrade-kernel-symssuse-upgrade-kernel-syms-azuresuse-upgrade-kernel-syms-rtsuse-upgrade-kernel-zfcpdumpsuse-upgrade-kselftests-kmp-64kbsuse-upgrade-kselftests-kmp-azuresuse-upgrade-kselftests-kmp-defaultsuse-upgrade-kselftests-kmp-rtsuse-upgrade-ocfs2-kmp-64kbsuse-upgrade-ocfs2-kmp-azuresuse-upgrade-ocfs2-kmp-defaultsuse-upgrade-ocfs2-kmp-rtsuse-upgrade-reiserfs-kmp-64kbsuse-upgrade-reiserfs-kmp-azuresuse-upgrade-reiserfs-kmp-defaultsuse-upgrade-reiserfs-kmp-rt | Dec 5, 2025 | May 21, 2025 |
| Ubuntu | ubuntu-upgrade-linux-image-6-11-0-1011-realtimeubuntu-upgrade-linux-image-6-11-0-1014-raspiubuntu-upgrade-linux-image-6-11-0-1015-awsubuntu-upgrade-linux-image-6-11-0-1015-lowlatencyubuntu-upgrade-linux-image-6-11-0-1015-lowlatency-64kubuntu-upgrade-linux-image-6-11-0-1016-gcpubuntu-upgrade-linux-image-6-11-0-1016-gcp-64kubuntu-upgrade-linux-image-6-11-0-1017-oracleubuntu-upgrade-linux-image-6-11-0-1017-oracle-64kubuntu-upgrade-linux-image-6-11-0-1018-azureubuntu-upgrade-linux-image-6-11-0-1018-azure-fdeubuntu-upgrade-linux-image-6-11-0-1024-oemubuntu-upgrade-linux-image-6-11-0-28-genericubuntu-upgrade-linux-image-6-11-0-28-generic-64kubuntu-upgrade-linux-image-6-8-0-1023-gkeopubuntu-upgrade-linux-image-6-8-0-1025-azure-nvidiaubuntu-upgrade-linux-image-6-8-0-1036-azureubuntu-upgrade-linux-image-6-8-0-1036-azure-fdeubuntu-upgrade-linux-image-6-8-0-1036-gkeubuntu-upgrade-linux-image-6-8-0-1036-gke-64kubuntu-upgrade-linux-image-6-8-0-1037-ibmubuntu-upgrade-linux-image-6-8-0-1037-oracleubuntu-upgrade-linux-image-6-8-0-1037-oracle-64kubuntu-upgrade-linux-image-6-8-0-1038-azureubuntu-upgrade-linux-image-6-8-0-1038-azure-fdeubuntu-upgrade-linux-image-6-8-0-1039-awsubuntu-upgrade-linux-image-6-8-0-1039-aws-64kubuntu-upgrade-linux-image-6-8-0-1039-nvidiaubuntu-upgrade-linux-image-6-8-0-1039-nvidia-64kubuntu-upgrade-linux-image-6-8-0-1039-nvidia-lowlatencyubuntu-upgrade-linux-image-6-8-0-1039-nvidia-lowlatency-64kubuntu-upgrade-linux-image-6-8-0-1039-raspiubuntu-upgrade-linux-image-6-8-0-1040-gcpubuntu-upgrade-linux-image-6-8-0-1040-gcp-64kubuntu-upgrade-linux-image-6-8-0-2031-raspi-realtimeubuntu-upgrade-linux-image-6-8-0-84-genericubuntu-upgrade-linux-image-6-8-0-84-generic-64kubuntu-upgrade-linux-image-6-8-0-84-lowlatencyubuntu-upgrade-linux-image-6-8-0-84-lowlatency-64kubuntu-upgrade-linux-image-6-8-0-85-genericubuntu-upgrade-linux-image-6-8-0-85-generic-64kubuntu-upgrade-linux-image-6-8-1-1034-realtimeubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-aws-6-8ubuntu-upgrade-linux-image-aws-64kubuntu-upgrade-linux-image-aws-64k-6-8ubuntu-upgrade-linux-image-aws-64k-lts-24-04ubuntu-upgrade-linux-image-aws-lts-24-04ubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-azure-6-11ubuntu-upgrade-linux-image-azure-6-8ubuntu-upgrade-linux-image-azure-fdeubuntu-upgrade-linux-image-azure-fde-6-11ubuntu-upgrade-linux-image-azure-fde-6-8ubuntu-upgrade-linux-image-azure-fde-edgeubuntu-upgrade-linux-image-azure-fde-lts-24-04ubuntu-upgrade-linux-image-azure-lts-24-04ubuntu-upgrade-linux-image-azure-nvidiaubuntu-upgrade-linux-image-azure-nvidia-6-8ubuntu-upgrade-linux-image-azure-nvidia-lts-24-04ubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-gcp-6-8ubuntu-upgrade-linux-image-gcp-64kubuntu-upgrade-linux-image-gcp-64k-6-8ubuntu-upgrade-linux-image-gcp-64k-lts-24-04ubuntu-upgrade-linux-image-gcp-lts-24-04ubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-6-8ubuntu-upgrade-linux-image-generic-64kubuntu-upgrade-linux-image-generic-64k-6-8ubuntu-upgrade-linux-image-generic-64k-hwe-22-04ubuntu-upgrade-linux-image-generic-64k-hwe-24-04ubuntu-upgrade-linux-image-generic-hwe-22-04ubuntu-upgrade-linux-image-generic-hwe-24-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-gke-6-8ubuntu-upgrade-linux-image-gke-64kubuntu-upgrade-linux-image-gke-64k-6-8ubuntu-upgrade-linux-image-gkeopubuntu-upgrade-linux-image-gkeop-6-8ubuntu-upgrade-linux-image-ibmubuntu-upgrade-linux-image-ibm-6-8ubuntu-upgrade-linux-image-ibm-classicubuntu-upgrade-linux-image-ibm-lts-24-04ubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-6-11ubuntu-upgrade-linux-image-lowlatency-6-8ubuntu-upgrade-linux-image-lowlatency-64kubuntu-upgrade-linux-image-lowlatency-64k-6-11ubuntu-upgrade-linux-image-lowlatency-64k-6-8ubuntu-upgrade-linux-image-lowlatency-64k-hwe-22-04ubuntu-upgrade-linux-image-lowlatency-64k-hwe-24-04ubuntu-upgrade-linux-image-lowlatency-hwe-22-04ubuntu-upgrade-linux-image-lowlatency-hwe-24-04ubuntu-upgrade-linux-image-nvidiaubuntu-upgrade-linux-image-nvidia-6-8ubuntu-upgrade-linux-image-nvidia-64kubuntu-upgrade-linux-image-nvidia-64k-6-8ubuntu-upgrade-linux-image-nvidia-64k-hwe-22-04ubuntu-upgrade-linux-image-nvidia-hwe-22-04ubuntu-upgrade-linux-image-nvidia-lowlatencyubuntu-upgrade-linux-image-nvidia-lowlatency-6-8ubuntu-upgrade-linux-image-nvidia-lowlatency-64kubuntu-upgrade-linux-image-nvidia-lowlatency-64k-6-8ubuntu-upgrade-linux-image-oem-22-04ubuntu-upgrade-linux-image-oem-22-04aubuntu-upgrade-linux-image-oem-22-04bubuntu-upgrade-linux-image-oem-22-04cubuntu-upgrade-linux-image-oem-22-04dubuntu-upgrade-linux-image-oem-24-04bubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-oracle-6-8ubuntu-upgrade-linux-image-oracle-64kubuntu-upgrade-linux-image-oracle-64k-6-8ubuntu-upgrade-linux-image-oracle-64k-lts-24-04ubuntu-upgrade-linux-image-oracle-lts-24-04ubuntu-upgrade-linux-image-raspiubuntu-upgrade-linux-image-raspi-6-8ubuntu-upgrade-linux-image-raspi-realtimeubuntu-upgrade-linux-image-raspi-realtime-6-8ubuntu-upgrade-linux-image-realtimeubuntu-upgrade-linux-image-realtime-6-8-1ubuntu-upgrade-linux-image-realtime-hwe-22-04ubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-6-8ubuntu-upgrade-linux-image-virtual-hwe-22-04ubuntu-upgrade-linux-image-virtual-hwe-24-04 | Jun 26, 2025 | Apr 1, 2025 |
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