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In the Linux kernel, the following vulnerability has been resolved:
RDMA/rxe: Fix responder length checking for UD request packets
According to the IBA specification: If a UD request packet is detected with an invalid length, the request shall be an invalid request and it shall be silently dropped by the responder. The responder then waits for a new request packet.
commit 689c5421bfe0 ("RDMA/rxe: Fix incorrect responder length checking") defers responder length check for UD QPs in function `copy_data`. But it introduces a regression issue for UD QPs.
When the packet size is too large to fit in the receive buffer. `copy_data` will return error code -EINVAL. Then `send_data_in` will return RESPST_ERR_MALFORMED_WQE. UD QP will transfer into ERROR state.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jul 12, 2024 |
| Suse | — | Upgrade kernel-rt_debugUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-64kb-optionalUpgrade kernel-source-vanillaUpgrade cluster-md-kmp-64kbUpgrade dtb-amdUpgrade kernel-symsUpgrade dtb-marvellUpgrade dtb-mediatekUpgrade dtb-caviumUpgrade gfs2-kmp-defaultUpgrade kernel-default-livepatch-develUpgrade kernel-defaultUpgrade kernel-debug-vdsoUpgrade kernel-default-baseUpgrade kernel-rt_debug-develUpgrade dtb-socionextUpgrade ocfs2-kmp-azureUpgrade dlm-kmp-defaultUpgrade kernel-64kb-extraUpgrade dtb-sprdUpgrade dtb-appleUpgrade kernel-rt-develUpgrade dtb-nvidiaUpgrade kernel-develUpgrade gfs2-kmp-azureUpgrade kernel-azureUpgrade kernel-default-optionalUpgrade kselftests-kmp-azureUpgrade kernel-rt-extraUpgrade reiserfs-kmp-defaultUpgrade kernel-kvmsmall-livepatch-develUpgrade dlm-kmp-rtUpgrade ocfs2-kmp-defaultUpgrade kernel-debugUpgrade kernel-devel-rtUpgrade dtb-alteraUpgrade kernel-64kb-develUpgrade kselftests-kmp-rtUpgrade dtb-xilinxUpgrade cluster-md-kmp-rtUpgrade kernel-azure-optionalUpgrade kernel-docsUpgrade kernel-debug-develUpgrade reiserfs-kmp-rtUpgrade dtb-allwinnerUpgrade dtb-renesasUpgrade dtb-hisiliconUpgrade kernel-azure-extraUpgrade kernel-rtUpgrade kernel-macrosUpgrade kernel-azure-develUpgrade dtb-amlogicUpgrade kernel-syms-rtUpgrade kernel-azure-livepatch-develUpgrade dtb-lgUpgrade kernel-sourceUpgrade dtb-qcomUpgrade cluster-md-kmp-defaultUpgrade kernel-default-extraUpgrade gfs2-kmp-rtUpgrade kernel-obs-buildUpgrade kernel-64kb-livepatch-develUpgrade kernel-source-azureUpgrade dtb-broadcomUpgrade kernel-obs-qaUpgrade kernel-default-vdsoUpgrade kernel-64kbUpgrade gfs2-kmp-64kbUpgrade dtb-rockchipUpgrade kernel-rt_debug-vdsoUpgrade ocfs2-kmp-64kbUpgrade kernel-azure-vdsoUpgrade reiserfs-kmp-64kbUpgrade kselftests-kmp-64kbUpgrade kernel-zfcpdumpUpgrade kernel-source-rtUpgrade kernel-rt-vdsoUpgrade kernel-docs-htmlUpgrade kernel-devel-azureUpgrade kernel-default-livepatchUpgrade dlm-kmp-azureUpgrade reiserfs-kmp-azureUpgrade dlm-kmp-64kbUpgrade ocfs2-kmp-rtUpgrade kernel-syms-azureUpgrade dtb-exynosUpgrade kernel-rt-livepatch-develUpgrade kernel-rt-optionalUpgrade cluster-md-kmp-azureUpgrade dtb-armUpgrade kernel-default-develUpgrade kernel-kvmsmallUpgrade dtb-apmUpgrade kernel-default-base-rebuildUpgrade kselftests-kmp-defaultUpgrade kernel-kvmsmall-vdsoUpgrade kernel-kvmsmall-develUpgrade kernel-debug-livepatch-develUpgrade dtb-freescaleUpgrade dtb-amazon | Dec 5, 2025 | Sep 10, 2024 |
| Ubuntu | — | Upgrade linux-image-oracle-64kUpgrade linux-image-6.8.0-1014-azureUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-azureUpgrade linux-image-oem-22.04cUpgrade linux-image-ibm-classicUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-oem-22.04dUpgrade linux-image-virtualUpgrade linux-image-generic-64kUpgrade linux-image-raspiUpgrade linux-image-6.8.0-1014-azure-fdeUpgrade linux-image-nvidia-64kUpgrade linux-image-kvmUpgrade linux-image-gcpUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.8.0-1013-nvidia-64kUpgrade linux-image-6.8.0-44-lowlatency-64kUpgrade linux-image-6.8.0-45-generic-64kUpgrade linux-image-6.8.0-44-genericUpgrade linux-image-awsUpgrade linux-image-6.8.0-1013-nvidia-lowlatencyUpgrade linux-image-gkeUpgrade linux-image-6.8.0-1012-oemUpgrade linux-image-6.8.0-1013-nvidia-lowlatency-64kUpgrade linux-image-oem-22.04bUpgrade linux-image-6.8.0-1013-nvidiaUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-lowlatencyUpgrade linux-image-6.8.0-1010-gkeUpgrade linux-image-6.8.0-1012-oracle-64kUpgrade linux-image-6.8.0-1011-raspiUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-6.8.0-44-lowlatencyUpgrade linux-image-ibmUpgrade linux-image-nvidiaUpgrade linux-image-6.8.0-1015-awsUpgrade linux-image-oem-22.04aUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-generic-lpaeUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-45-genericUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.8.0-1012-ibmUpgrade linux-image-oracleUpgrade linux-image-nvidia-6.8Upgrade linux-image-azure-fdeUpgrade linux-image-6.8.0-1012-oracleUpgrade linux-image-genericUpgrade linux-image-lowlatency-64kUpgrade linux-image-6.8.0-44-generic-64kUpgrade linux-image-oem-22.04Upgrade linux-image-6.8.0-1014-gcp | Sep 12, 2024 | Jul 12, 2024 |
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