In the Linux kernel, the following vulnerability has been resolved:
blk-mq: use quiesced elevator switch when reinitializing queues
The hctx's run_work may be racing with the elevator switch when reinitializing hardware queues. The queue is merely frozen in this context, but that only prevents requests from allocating and doesn't stop the hctx work from running. The work may get an elevator pointer that's being torn down, and can result in use-after-free errors and kernel panics (example below). Use the quiesced elevator switch instead, and make the previous one static since it is now only used locally.
nvme nvme0: resetting controller nvme nvme0: 32/0/0 default/read/poll queues BUG: kernel NULL pointer dereference, address: 0000000000000008 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 80000020c8861067 P4D 80000020c8861067 PUD 250f8c8067 PMD 0 Oops: 0000 [#1] SMP PTI Workqueue: kblockd blk_mq_run_work_fn RIP: 0010:kyber_has_work+0x29/0x70
...
Call Trace: __blk_mq_do_dispatch_sched+0x83/0x2b0 __blk_mq_sched_dispatch_requests+0x12e/0x170 blk_mq_sched_dispatch_requests+0x30/0x60 __blk_mq_run_hw_queue+0x2b/0x50 process_one_work+0x1ef/0x380 worker_thread+0x2d/0x3e0
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-livepatch-5.10.258-257.1041Upgrade kernel-tools-develUpgrade kernel-tools-debuginfoUpgrade bpftoolUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-develUpgrade perfUpgrade kernel-toolsUpgrade kernel-debuginfo-common-x86_64Upgrade python-perfUpgrade bpftool-debuginfoUpgrade kernel-livepatch-5.15.209-147.245Upgrade python-perf-debuginfoUpgrade kernelUpgrade perf-debuginfoUpgrade kernel-headersUpgrade kernel-debuginfo | Jun 23, 2026 | Jun 23, 2026 |
| Debian | — | Upgrade linux | Oct 9, 2025 | Oct 9, 2025 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernelUpgrade python3-perfUpgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libs | Jan 15, 2026 | Jan 13, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-tools-libsUpgrade bpftoolUpgrade kernelUpgrade kernel-toolsUpgrade python3-perfUpgrade kernel-abi-stablelists | Feb 3, 2026 | Jan 30, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Oct 7, 2025 |
| Ubuntu | — | Upgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-gkeUpgrade linux-image-5.15.0-1075-xilinx-zynqmpUpgrade linux-image-raspi-5.15Upgrade linux-image-gcp-fipsUpgrade linux-image-oracle-5.15Upgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-ibm-5.15Upgrade linux-image-gcp-fips-5.15Upgrade linux-image-azureUpgrade linux-image-5.15.0-1112-gcp-fipsUpgrade linux-image-azure-5.15Upgrade linux-image-azure-cvmUpgrade linux-image-realtimeUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-5.15.0-1064-nvidia-tegraUpgrade linux-image-5.15.0-1107-nvidia-lowlatencyUpgrade linux-image-aws-5.15Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-aws-fipsUpgrade linux-image-realtime-5.15Upgrade linux-image-gkeop-5.15Upgrade linux-image-5.15.0-1064-nvidia-tegra-rtUpgrade linux-image-raspiUpgrade linux-image-kvmUpgrade linux-image-5.15.0-1107-intel-iotgUpgrade linux-image-nvidia-tegra-igxUpgrade linux-image-5.15.0-1109-oracleUpgrade linux-image-5.15.0-184-lowlatencyUpgrade linux-image-oem-20.04cUpgrade linux-image-generic-5.15Upgrade linux-image-lowlatency-5.15Upgrade linux-image-virtual-5.15Upgrade linux-image-nvidia-5.15Upgrade linux-image-virtual-hwe-20.04Upgrade linux-image-5.15.0-186-fipsUpgrade linux-image-5.15.0-1107-nvidiaUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-aws-fips-5.15Upgrade linux-image-azure-fde-5.15Upgrade linux-image-5.15.0-1106-ibmUpgrade linux-image-awsUpgrade linux-image-5.15.0-1053-nvidia-tegra-igxUpgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-5.15.0-1108-gkeUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-5.15.0-1053-nvidia-tegra-igx-rtUpgrade linux-image-5.15.0-1117-azureUpgrade linux-image-5.15.0-1117-azure-fipsUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-oem-20.04Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-5.15.0-1095-gkeopUpgrade linux-image-azure-fips-5.15Upgrade linux-image-generic-64k-5.15Upgrade linux-image-gcp-5.15Upgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-nvidia-tegraUpgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-5.15.0-1117-azure-fdeUpgrade linux-image-oem-20.04bUpgrade linux-image-5.15.0-1112-gcpUpgrade linux-image-5.15.0-186-genericUpgrade linux-image-kvm-5.15Upgrade linux-image-5.15.0-1104-kvmUpgrade linux-image-raspi-nolpaeUpgrade linux-image-intel-iotgUpgrade linux-image-lowlatencyUpgrade linux-image-aws-lts-22.04Upgrade linux-image-5.15.0-1106-raspiUpgrade linux-image-lowlatency-64kUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-aws-64k-5.15Upgrade linux-image-azure-lts-22.04Upgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-5.15.0-1112-aws-64kUpgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-generic-lpaeUpgrade linux-image-intel-iotg-5.15Upgrade linux-image-5.15.0-1112-aws-fipsUpgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-5.15.0-186-generic-64kUpgrade linux-image-5.15.0-1104-intel-iot-realtimeUpgrade linux-image-azure-fipsUpgrade linux-image-gke-5.15Upgrade linux-image-intelUpgrade linux-image-gkeopUpgrade linux-image-ibmUpgrade linux-image-generic-64kUpgrade linux-image-genericUpgrade linux-image-fips-5.15Upgrade linux-image-5.15.0-1112-awsUpgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-5.15.0-184-lowlatency-64kUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-nvidiaUpgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-fipsUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-azure-fdeUpgrade linux-image-gcpUpgrade linux-image-virtualUpgrade linux-image-5.15.0-1111-realtimeUpgrade linux-image-5.15.0-186-generic-lpaeUpgrade linux-image-oem-20.04dUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-oracle | Jul 20, 2026 | Oct 7, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Oct 7, 2025 |
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