Log in Start free

Vulnerability · Published Nov 12, 2025 · Assigned by Linux

CVE-2025-40146blk-mq: fix potential deadlock while nr_requests grown

Unrated

In plain English

A security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 84.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix potential deadlock while nr_requests grown Allocate and free sched_tags while queue is freezed can deadlock[1], this is a long term problem, hence allocate memory before freezing queue and free memory after queue is unfreezed. [1] https://lore.kernel.org/all/0659ea8d-a463-47c8-9180-43c719e106eb@linux.ibm.com/

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2025-40146
Debian:13linuxno fix listedDEBIAN-CVE-2025-40146
Debian:14linux6.17.6-1DEBIAN-CVE-2025-40146
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2025-40146
Ubuntu:25.10linux6.17.0-14.14UBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2025-40146
Ubuntu:25.10linux-aws6.17.0-1007.7UBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-aws-6.176.17.0-1007.7~24.04.1UBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2025-40146
Ubuntu:25.10linux-azure6.17.0-1008.8UBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2025-40146
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2025-40146
Ubuntu:25.10linux-gcp6.17.0-1007.7UBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1008.8~24.04.1UBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1008.8UBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1011.11UBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2025-40146
Ubuntu:25.10linux-oracle6.17.0-1007.7UBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-oracle-6.176.17.0-1007.7~24.04.1UBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2025-40146
Ubuntu:25.10linux-raspi6.17.0-1008.8UBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-40146
Ubuntu:25.10linux-realtime6.17.0-1006.7UBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-40146
Ubuntu:25.10linux-riscv6.17.0-14.14.1UBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2025-40146
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2025-40146
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2025-40146

Affected products (as reported)

VendorProductVersions
Linux Linux e3a2b3f931f59d5284abd13faf8bded726884ffd – before 8d26acf8477174d8ef690eb6affe13a630f586aee3a2b3f931f59d5284abd13faf8bded726884ffd – before b86433721f46d934940528f28d49c1dedb690df1
Linux Linux 3.16

References