In the Linux kernel, the following vulnerability has been resolved:
scsi: libiscsi: Initialize iscsi_conn->dd_data only if memory is allocated
In case of an ib_fast_reg_mr allocation failure during iSER setup, the machine hits a panic because iscsi_conn->dd_data is initialized unconditionally, even when no memory is allocated (dd_size == 0). This leads invalid pointer dereference during connection teardown.
Fix by setting iscsi_conn->dd_data only if memory is actually allocated.
Panic trace: ------------ iser: iser_create_fastreg_desc: Failed to allocate ib_fast_reg_mr err=-12 iser: iser_alloc_rx_descriptors: failed allocating rx descriptors / data buffers BUG: unable to handle page fault for address: fffffffffffffff8 RIP: 0010:swake_up_locked.part.5+0xa/0x40 Call Trace: complete+0x31/0x40 iscsi_iser_conn_stop+0x88/0xb0 [ib_iser] iscsi_stop_conn+0x66/0xc0 [scsi_transport_iscsi] iscsi_if_stop_conn+0x14a/0x150 [scsi_transport_iscsi] iscsi_if_rx+0x1135/0x1834 [scsi_transport_iscsi] ? netlink_lookup+0x12f/0x1b0 ? netlink_deliver_tap+0x2c/0x200 netlink_unicast+0x1ab/0x280 netlink_sendmsg+0x257/0x4f0 ? _copy_from_user+0x29/0x60 sock_sendmsg+0x5f/0x70
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade perf-debuginfoUpgrade kernel-toolsUpgrade perfUpgrade python-perf-debuginfoUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-4.14.355-280.695Upgrade kernel-headersUpgrade kernelUpgrade kernel-livepatch-5.10.242-239.961Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-develUpgrade bpftoolUpgrade bpftool-debuginfoUpgrade python-perf | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-tools-develUpgrade kernel6.12-debuginfoUpgrade kernel-develUpgrade kernel-modules-extraUpgrade kernel6.12-headersUpgrade kernel-libbpf-staticUpgrade kernel6.12-toolsUpgrade python3-perf6.12Upgrade perfUpgrade kernel6.12-develUpgrade bpftoolUpgrade kernel6.12Upgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade python3-perf-debuginfoUpgrade kernel-libbpfUpgrade kernel6.12-tools-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-debuginfoUpgrade perf6.12-debuginfoUpgrade python3-perfUpgrade kernel6.12-modules-extra-commonUpgrade kernel-toolsUpgrade perf6.12Upgrade kernel6.12-debuginfo-common-aarch64Upgrade bpftool6.12-debuginfoUpgrade python3-perf6.12-debuginfoUpgrade kernel-modules-extra-commonUpgrade bpftool6.12Upgrade kernel6.12-libbpf-staticUpgrade kernel-livepatch-6.1.150-174.273Upgrade kernel-libbpf-develUpgrade kernel6.12-tools-debuginfoUpgrade kernel6.12-libbpf-debuginfoUpgrade kernel-libbpf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade bpftool-debuginfoUpgrade kernel6.12-libbpfUpgrade perf-debuginfoUpgrade kernel-livepatch-6.12.46-66.121Upgrade kernel6.12-libbpf-develUpgrade kernel6.12-modules-extraUpgrade kernel-headers | Sep 30, 2025 | Sep 4, 2025 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Sep 25, 2025 | Sep 25, 2025 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade python3-perf | Nov 12, 2025 | Nov 6, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernelUpgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade python3-perfUpgrade kernel-tools-libsUpgrade bpftool | Mar 17, 2026 | Mar 17, 2026 |
| Huawei Euleros 2_0_sp12 | — | Upgrade python3-perfUpgrade bpftoolUpgrade kernelUpgrade kernel-tools-libsUpgrade kernel-abi-stablelistsUpgrade kernel-tools | Mar 17, 2026 | Mar 17, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-abi-stablelistsUpgrade kernel-tools-libsUpgrade kernelUpgrade kernel-toolsUpgrade python3-perfUpgrade bpftool | Feb 3, 2026 | Jan 30, 2026 |
| Oracle_linux | — | Upgrade kernel-uek | Oct 14, 2025 | Sep 4, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Sep 4, 2025 |
| Suse | — | Upgrade dtb-renesasUpgrade cluster-md-kmp-64kbUpgrade dtb-nvidiaUpgrade kernel-rt-extraUpgrade dtb-marvellUpgrade reiserfs-kmp-defaultUpgrade ocfs2-kmp-defaultUpgrade dlm-kmp-defaultUpgrade kernel-source-vanillaUpgrade dtb-amdUpgrade dtb-appleUpgrade dtb-rockchipUpgrade dtb-sprdUpgrade kernel-64kb-extraUpgrade gfs2-kmp-defaultUpgrade kernel-obs-buildUpgrade dlm-kmp-rtUpgrade kernel-docsUpgrade dtb-armUpgrade kernel-rt-livepatch-develUpgrade kselftests-kmp-rtUpgrade kernel-rt-vdsoUpgrade dtb-socionextUpgrade kernel-defaultUpgrade dtb-allwinnerUpgrade dtb-mediatekUpgrade kernel-rt-develUpgrade kselftests-kmp-defaultUpgrade kernel-default-baseUpgrade kernel-default-livepatch-develUpgrade dtb-exynosUpgrade kernel-rtUpgrade kernel-default-vdsoUpgrade dtb-alteraUpgrade dlm-kmp-64kbUpgrade kernel-kvmsmall-develUpgrade kernel-docs-htmlUpgrade kernel-default-livepatchUpgrade kernel-obs-qaUpgrade dtb-lgUpgrade kernel-rt-optionalUpgrade kernel-rt-livepatchUpgrade kernel-64kbUpgrade dtb-hisiliconUpgrade kernel-develUpgrade ocfs2-kmp-64kbUpgrade kernel-default-develUpgrade kernel-default-optionalUpgrade kernel-64kb-develUpgrade dtb-caviumUpgrade dtb-apmUpgrade dtb-amazonUpgrade gfs2-kmp-64kbUpgrade dtb-amlogicUpgrade gfs2-kmp-rtUpgrade kernel-sourceUpgrade kselftests-kmp-64kbUpgrade kernel-kvmsmall-vdsoUpgrade kernel-macrosUpgrade kernel-default-extraUpgrade cluster-md-kmp-rtUpgrade dtb-qcomUpgrade kernel-symsUpgrade kernel-kvmsmallUpgrade dtb-broadcomUpgrade cluster-md-kmp-defaultUpgrade kernel-zfcpdumpUpgrade dtb-xilinxUpgrade dtb-freescaleUpgrade kernel-64kb-optionalUpgrade ocfs2-kmp-rt | Dec 5, 2025 | Nov 6, 2025 |
| Ubuntu | — | Upgrade linux-image-aws-lts-24.04Upgrade linux-image-gkeUpgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-realtimeUpgrade linux-image-raspi-nolpaeUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-xilinx-6.8Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-6.8.0-1047-raspiUpgrade linux-image-oem-20.04Upgrade linux-image-5.15.0-163-generic-64kUpgrade linux-image-intelUpgrade linux-image-realtime-5.15Upgrade linux-image-raspi-6.8Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-aws-5.15Upgrade linux-image-generic-64k-5.15Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-intel-iotgUpgrade linux-image-generic-lpae-5.15Upgrade linux-image-5.15.0-1038-nvidia-tegra-igxUpgrade linux-image-6.8.0-1044-ibmUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-6.8.0-1030-gkeopUpgrade linux-image-5.15.0-1061-xilinx-zynqmpUpgrade linux-image-gcp-fips-5.15Upgrade linux-image-raspi-5.15Upgrade linux-image-5.15.0-1092-intel-iotgUpgrade linux-image-realtime-6.8.1Upgrade linux-image-nvidia-6.8Upgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-5.15.0-1093-gkeUpgrade linux-image-gcp-6.8Upgrade linux-image-ibm-5.15Upgrade linux-image-5.15.0-1091-ibmUpgrade linux-image-5.15.0-1097-aws-64kUpgrade linux-image-6.8.0-1046-nvidiaUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-awsUpgrade linux-image-oracle-6.8Upgrade linux-image-virtual-5.15Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-aws-fips-6.8Upgrade linux-image-azure-5.15Upgrade linux-image-kvmUpgrade linux-image-aws-fips-5.15Upgrade linux-image-6.8.0-100-fipsUpgrade linux-image-6.8.0-2037-raspi-realtimeUpgrade linux-image-azure-fips-5.15Upgrade linux-image-virtualUpgrade linux-image-oracleUpgrade linux-image-gke-64k-6.8Upgrade linux-image-5.15.0-1097-aws-fipsUpgrade linux-image-oem-22.04dUpgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-aws-fipsUpgrade linux-image-nvidia-tegra-igxUpgrade linux-image-5.15.0-163-genericUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-aws-64k-5.15Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-gcp-5.15Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-5.15.0-1101-azure-fipsUpgrade linux-image-5.15.0-1092-nvidiaUpgrade linux-image-6.8.0-1047-gcpUpgrade linux-image-aws-64kUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-generic-5.15Upgrade linux-image-azure-cvmUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-lowlatency-6.8Upgrade linux-image-azure-6.8Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-lowlatency-5.15Upgrade linux-image-gcp-64kUpgrade linux-image-gkeop-5.15Upgrade linux-image-nvidia-64kUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-5.15.0-1049-nvidia-tegraUpgrade linux-image-gcp-fipsUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-raspiUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-kvm-5.15Upgrade linux-image-5.15.0-1096-realtimeUpgrade linux-image-6.8.0-1046-azure-fipsUpgrade linux-image-azure-fipsUpgrade linux-image-6.8.0-1046-nvidia-lowlatencyUpgrade linux-image-6.8.0-1043-gke-64kUpgrade linux-image-oem-20.04bUpgrade linux-image-5.15.0-1038-nvidia-tegra-igx-rtUpgrade linux-image-6.8.0-1023-xilinxUpgrade linux-image-gcpUpgrade linux-image-fips-5.15Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-6.8.0-1046-aws-fipsUpgrade linux-image-5.15.0-1097-awsUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-6.8.0-1043-gkeUpgrade linux-image-6.8.0-100-lowlatency-64kUpgrade linux-image-generic-64kUpgrade linux-image-aws-lts-22.04Upgrade linux-image-5.15.0-1101-azureUpgrade linux-image-raspi-realtimeUpgrade linux-image-oracle-5.15Upgrade linux-image-azureUpgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-5.15.0-1097-gcp-fipsUpgrade linux-image-gkeopUpgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-gke-6.8Upgrade linux-image-6.8.1-1041-realtimeUpgrade linux-image-oem-20.04cUpgrade linux-image-6.8.0-1047-gcp-fipsUpgrade linux-image-6.8.0-1046-nvidia-lowlatency-64kUpgrade linux-image-5.15.0-163-lowlatencyUpgrade linux-image-nvidia-tegraUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-5.15.0-1049-nvidia-tegra-rtUpgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-gke-64kUpgrade linux-image-generic-lpaeUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-genericUpgrade linux-image-generic-6.8Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-azure-lts-24.04Upgrade linux-image-5.15.0-1094-oracleUpgrade linux-image-5.15.0-1089-kvmUpgrade linux-image-5.15.0-163-generic-lpaeUpgrade linux-image-5.15.0-163-lowlatency-64kUpgrade linux-image-lowlatency-64kUpgrade linux-image-6.8.0-1043-oracle-64kUpgrade linux-image-6.8.0-1051-azureUpgrade linux-image-5.15.0-163-fipsUpgrade linux-image-5.15.0-1102-azureUpgrade linux-image-gkeop-6.8Upgrade linux-image-azure-fips-6.8Upgrade linux-image-6.8.0-100-generic-64kUpgrade linux-image-5.15.0-1092-nvidia-lowlatencyUpgrade linux-image-oem-22.04Upgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-lowlatencyUpgrade linux-image-ibm-classicUpgrade linux-image-fips-6.8Upgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-oem-22.04bUpgrade linux-image-nvidiaUpgrade linux-image-6.8.0-1046-aws-64kUpgrade linux-image-5.15.0-1097-gcpUpgrade linux-image-azure-lts-22.04Upgrade linux-image-ibmUpgrade linux-image-oracle-64kUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-gke-5.15Upgrade linux-image-5.15.0-1080-gkeopUpgrade linux-image-xilinxUpgrade linux-image-oem-22.04aUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-aws-64k-6.8Upgrade linux-image-5.15.0-1091-raspiUpgrade linux-image-6.8.0-1046-awsUpgrade linux-image-fipsUpgrade linux-image-6.8.0-100-genericUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-oem-20.04dUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-intel-iotg-5.15Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-5.15.0-1089-intel-iot-realtimeUpgrade linux-image-ibm-6.8Upgrade linux-image-generic-64k-6.8Upgrade linux-image-aws-6.8Upgrade linux-image-6.8.0-1047-gcp-64kUpgrade linux-image-6.8.0-1046-nvidia-64kUpgrade linux-image-6.8.0-1046-azureUpgrade linux-image-6.8.0-1043-oracleUpgrade linux-image-6.8.0-100-lowlatencyUpgrade linux-image-virtual-6.8Upgrade linux-image-oem-22.04cUpgrade linux-image-nvidia-5.15 | Dec 5, 2025 | Sep 4, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Sep 19, 2025 | Sep 4, 2025 |
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