In the Linux kernel, the following vulnerability has been resolved:
blk-mq: check kobject state_in_sysfs before deleting in blk_mq_unregister_hctx
In __blk_mq_update_nr_hw_queues() the return value of blk_mq_sysfs_register_hctxs() is not checked. If sysfs creation for hctx fails, later changing the number of hw_queues or removing disk will trigger the following warning:
kernfs: can not remove 'nr_tags', no directory WARNING: CPU: 2 PID: 637 at fs/kernfs/dir.c:1707 kernfs_remove_by_name_ns+0x13f/0x160 Call Trace: remove_files.isra.1+0x38/0xb0 sysfs_remove_group+0x4d/0x100 sysfs_remove_groups+0x31/0x60 __kobject_del+0x23/0xf0 kobject_del+0x17/0x40 blk_mq_unregister_hctx+0x5d/0x80 blk_mq_sysfs_unregister_hctxs+0x94/0xd0 blk_mq_update_nr_hw_queues+0x124/0x760 nullb_update_nr_hw_queues+0x71/0xf0 [null_blk] nullb_device_submit_queues_store+0x92/0x120 [null_blk]
kobjct_del() was called unconditionally even if sysfs creation failed. Fix it by checkig the kobject creation statusbefore deleting it.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-livepatch-5.10.247-246.989Upgrade kernel-debuginfoUpgrade perf-debuginfoUpgrade python-perfUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade perfUpgrade python-perf-debuginfoUpgrade kernel-livepatch-5.15.195-136.216Upgrade kernel-debuginfo-common-aarch64Upgrade bpftoolUpgrade bpftool-debuginfoUpgrade kernel-tools-develUpgrade kernel-toolsUpgrade kernel-develUpgrade kernelUpgrade kernel-tools-debuginfo | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-tools-debuginfoUpgrade perfUpgrade kernel-livepatch-6.1.156-177.286Upgrade kernel6.12Upgrade bpftool-debuginfoUpgrade python3-perf6.12Upgrade kernel6.12-modules-extra-commonUpgrade kernel6.12-develUpgrade perf6.12Upgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel6.12-modules-extraUpgrade kernel-modules-extraUpgrade kernel-develUpgrade kernel6.12-headersUpgrade kernel-headersUpgrade kernel-libbpfUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel6.12-libbpf-debuginfoUpgrade bpftool6.12-debuginfoUpgrade kernel-libbpf-debuginfoUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfoUpgrade python3-perfUpgrade python3-perf-debuginfoUpgrade bpftoolUpgrade kernel-livepatch-6.12.53-69.119Upgrade perf6.12-debuginfoUpgrade kernel6.12-libbpf-staticUpgrade kernel-modules-extra-commonUpgrade kernel-libbpf-staticUpgrade bpftool6.12Upgrade kernel6.12-tools-debuginfoUpgrade kernel-libbpf-develUpgrade kernel6.12-tools-develUpgrade kernel-tools-develUpgrade kernel-toolsUpgrade kernelUpgrade python3-perf6.12-debuginfoUpgrade kernel6.12-toolsUpgrade kernel6.12-debuginfoUpgrade kernel6.12-libbpf-develUpgrade kernel6.12-libbpfUpgrade kernel-debuginfo-common-x86_64 | Dec 9, 2025 | Nov 12, 2025 |
| Debian | — | Upgrade linux-6.1Upgrade linux | Nov 13, 2025 | Nov 13, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade python3-perfUpgrade bpftoolUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade kernel-tools-libs | Mar 17, 2026 | Mar 17, 2026 |
| Huawei Euleros 2_0_sp12 | — | Upgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libsUpgrade bpftoolUpgrade kernelUpgrade kernel-tools | Mar 17, 2026 | Mar 17, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade python3-perfUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel-tools-libs | Mar 10, 2026 | Mar 10, 2026 |
| Oracle_linux | — | Upgrade kernel-uek | Dec 15, 2025 | Nov 12, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Nov 12, 2025 |
| Ubuntu | — | Upgrade linux-image-5.15.0-1096-gkeUpgrade linux-image-5.15.0-170-genericUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-5.15.0-1100-awsUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-6.8.0-106-fipsUpgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-oem-20.04dUpgrade linux-image-xilinxUpgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-5.15.0-1097-raspiUpgrade linux-image-raspi-realtimeUpgrade linux-image-realtime-6.17Upgrade linux-image-nvidia-64kUpgrade linux-image-5.15.0-1064-xilinx-zynqmpUpgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-gkeop-6.8Upgrade linux-image-5.15.0-1095-intel-iotgUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-5.15.0-1099-realtimeUpgrade linux-image-5.15.0-1109-azureUpgrade linux-image-gke-6.8Upgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-5.15.0-1110-azureUpgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-generic-64kUpgrade linux-image-generic-6.17Upgrade linux-image-azure-6.8Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-oem-20.04cUpgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-aws-6.17Upgrade linux-image-nvidia-5.15Upgrade linux-image-oem-22.04bUpgrade linux-image-azure-lts-24.04Upgrade linux-image-ibmUpgrade linux-image-nvidia-tegraUpgrade linux-image-lowlatencyUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-azure-6.17Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-gkeopUpgrade linux-image-oem-20.04bUpgrade linux-image-5.15.0-1092-kvmUpgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-realtimeUpgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-ibm-classicUpgrade linux-image-intelUpgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-5.15.0-1052-nvidia-tegra-rtUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-fips-5.15Upgrade linux-image-azure-lts-22.04Upgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-aws-fips-6.8Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-6.8.0-1050-awsUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-kvm-5.15Upgrade linux-image-oem-20.04Upgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-aws-64kUpgrade linux-image-5.15.0-170-generic-lpaeUpgrade linux-image-5.15.0-1109-azure-fipsUpgrade linux-image-6.17.0-1008-azureUpgrade linux-image-fips-6.8Upgrade linux-image-5.15.0-1100-aws-fipsUpgrade linux-image-5.15.0-1100-gcpUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-raspi-6.17Upgrade linux-image-aws-lts-22.04Upgrade linux-image-azure-fips-6.8Upgrade linux-image-kvmUpgrade linux-image-generic-6.8Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-gkeUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-genericUpgrade linux-image-gke-5.15Upgrade linux-image-gcp-6.8Upgrade linux-image-oracleUpgrade linux-image-5.15.0-1083-gkeopUpgrade linux-image-aws-lts-24.04Upgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-oem-22.04cUpgrade linux-image-virtual-6.17Upgrade linux-image-ibm-6.8Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-intel-iotgUpgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-aws-64k-6.8Upgrade linux-image-virtualUpgrade linux-image-5.15.0-1094-ibmUpgrade linux-image-aws-5.15Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-oem-22.04aUpgrade linux-image-raspi-5.15Upgrade linux-image-realtime-5.15Upgrade linux-image-6.17.0-1011-oemUpgrade linux-image-gcpUpgrade linux-image-oracle-64kUpgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-gcp-fips-5.15Upgrade linux-image-azure-cvmUpgrade linux-image-6.17.0-1008-raspiUpgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-oracle-64k-6.17Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-gcp-fipsUpgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-aws-64k-6.17Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-azure-fipsUpgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-6.8.0-106-genericUpgrade linux-image-5.15.0-1097-oracleUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-gke-64kUpgrade linux-image-aws-fips-5.15Upgrade linux-image-awsUpgrade linux-image-realtime-6.8.1Upgrade linux-image-5.15.0-170-lowlatencyUpgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-aws-fipsUpgrade linux-image-aws-6.8Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-5.15.0-1095-nvidiaUpgrade linux-image-5.15.0-1092-intel-iot-realtimeUpgrade linux-image-5.15.0-170-fipsUpgrade linux-image-5.15.0-1041-nvidia-tegra-igxUpgrade linux-image-raspi-6.8Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-oracle-5.15Upgrade linux-image-ibm-5.15Upgrade linux-image-generic-64k-6.8Upgrade linux-image-gcp-64k-6.17Upgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-5.15.0-1100-aws-64kUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-xilinx-6.8Upgrade linux-image-oracle-6.17Upgrade linux-image-nvidiaUpgrade linux-image-lowlatency-5.15Upgrade linux-image-generic-64k-5.15Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-gcp-64kUpgrade linux-image-gcp-5.15Upgrade linux-image-generic-5.15Upgrade linux-image-gkeop-5.15Upgrade linux-image-gke-64k-6.8Upgrade linux-image-generic-64k-6.17Upgrade linux-image-lowlatency-64kUpgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-intel-iotg-5.15Upgrade linux-image-5.15.0-1100-gcp-fipsUpgrade linux-image-oem-22.04Upgrade linux-image-nvidia-tegra-igxUpgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-virtual-5.15Upgrade linux-image-aws-64k-5.15Upgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-nvidia-6.8Upgrade linux-image-6.17.0-14-genericUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-virtual-6.8Upgrade linux-image-oracle-6.8Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-azure-fips-5.15Upgrade linux-image-gcp-6.17Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-lowlatency-6.8Upgrade linux-image-5.15.0-170-lowlatency-64kUpgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-generic-lpaeUpgrade linux-image-azureUpgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-azure-5.15Upgrade linux-image-5.15.0-1095-nvidia-lowlatencyUpgrade linux-image-5.15.0-1052-nvidia-tegraUpgrade linux-image-raspi-nolpaeUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-oem-22.04dUpgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-fipsUpgrade linux-image-6.17.0-1007-awsUpgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-5.15.0-170-generic-64kUpgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-raspiUpgrade linux-image-5.15.0-1041-nvidia-tegra-igx-rtUpgrade linux-image-oem-6.17 | Feb 13, 2026 | Feb 12, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Nov 12, 2025 |
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