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Vulnerability · Published Apr 16, 2025 · Assigned by Linux

CVE-2025-22068ublk: make sure ubq->canceling is set when queue is frozen

High 7.8

In plain English

A high-severity use-after-free 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 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 89.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: ublk: make sure ubq->canceling is set when queue is frozen Now ublk driver depends on `ubq->canceling` for deciding if the request can be dispatched via uring_cmd & io_uring_cmd_complete_in_task(). Once ubq->canceling is set, the uring_cmd can be done via ublk_cancel_cmd() and io_uring_cmd_done(). So set ubq->canceling when queue is frozen, this way makes sure that the flag can be observed from ublk_queue_rq() reliably, and avoids use-after-free on uring_cmd.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:10kernel-abi-stablelists6.12.0-124.16.1.el10_1ALSA-2025:22395
AlmaLinux:10kernel-abi-stablelists6.12.0-55.33.1.el10_0ALSA-2025:15782
AlmaLinux:10kernel-doc6.12.0-124.16.1.el10_1ALSA-2025:22395
AlmaLinux:10kernel-doc6.12.0-55.33.1.el10_0ALSA-2025:15782
Debian:13linux6.12.25-1DEBIAN-CVE-2025-22068
Debian:14linux6.12.25-1DEBIAN-CVE-2025-22068
Rocky Linux:10kernel0:6.12.0-124.16.1.el10_1RLSA-2025:22395
Ubuntu:24.04:LTSlinux6.8.0-86.87UBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux6.8.0-86.87USN-7835-1
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-aws6.8.0-1041.43UBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-aws6.8.0-1041.43USN-7835-1
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1041.43~22.04.1UBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1041.43~22.04.1USN-7835-6
Ubuntu:24.04:LTSlinux-azure6.8.0-1041.47USN-7835-1
Ubuntu:24.04:LTSlinux-azure6.8.0-1041.47UBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1018.18~24.04.1UBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1041.47~22.04.1USN-7835-1
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1041.47~22.04.1UBUNTU-CVE-2025-22068
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1029.32USN-7940-2
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1029.32UBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-gcp6.8.0-1042.45USN-7835-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1042.45UBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1016.16~24.04.1UBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1042.45~22.04.1USN-7835-3
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1042.45~22.04.1UBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-gke6.8.0-1038.43UBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-gke6.8.0-1038.43USN-7835-3
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1025.28USN-7835-1
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1025.28UBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-hwe-6.116.11.0-28.28~24.04.1UBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-86.87~22.04.1USN-7835-4
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-86.87~22.04.1UBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-ibm6.8.0-1039.39USN-7835-1
Ubuntu:24.04:LTSlinux-ibm6.8.0-1039.39UBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1039.39~22.04.1USN-7835-1
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1039.39~22.04.1UBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-86.87.1UBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-86.87.1USN-7835-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.116.11.0-1015.16~24.04.2UBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-86.87.1~22.04.1USN-7835-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-86.87.1~22.04.1UBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1041.44UBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1041.44USN-7835-3
Ubuntu:24.04:LTSlinux-nvidia-6.116.11.0-1012.12UBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1041.44~22.04.2UBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1041.44~22.04.2USN-7835-3
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1041.44.1USN-7835-3
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1041.44.1UBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1012.12UBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-oem-6.116.11.0-1024.24UBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-oracle6.8.0-1038.39UBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-oracle6.8.0-1038.39USN-7835-1
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1038.39~22.04.1UBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1038.39~22.04.1USN-7835-5
Ubuntu:24.04:LTSlinux-raspi6.8.0-1041.45USN-7887-2
Ubuntu:24.04:LTSlinux-raspi6.8.0-1041.45UBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-86.87~22.04.1UBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-22068
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-22068
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1018.19UBUNTU-CVE-2025-22068

Affected products (as reported)

VendorProductVersions
Linux Linux 216c8f5ef0f209a3797292c487bdaa6991ab4b92 – before 7e3497d7dacb5aee69dd9be842b778083cae0e75216c8f5ef0f209a3797292c487bdaa6991ab4b92 – before 5491400589e7572c2d2627ed6384302f7672aa1d216c8f5ef0f209a3797292c487bdaa6991ab4b92 – before 9158359015f0eda00e521e35b7bc7ebce176aebf216c8f5ef0f209a3797292c487bdaa6991ab4b92 – before 8741d0737921ec1c03cf59aebf4d01400c2b461a
Linux Linux 6.7

Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References