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Vulnerability DatabaseCVE-2023-53207
CVE-2023-53207:
Linux Kernel vulnerability analysis and mitigation
Overview
In the Linux kernel, a vulnerability (CVE-2023-53207) was identified related to the ublk (userspace block) device recovery mechanism. The issue was discovered and disclosed on September 15, 2025. The vulnerability affects the Linux kernel's block device subsystem, specifically in the ublkctrlend_recovery() function (NVD).
Technical details
The vulnerability occurs in the ublkctrlendrecovery() function when waitforcompletioninterruptible() is interrupted by a signal. In this scenario, queues aren't set up successfully, but the function fails to properly handle this case, which can lead to a kernel oops condition (NVD).
Impact
If exploited, this vulnerability can trigger a kernel oops, potentially leading to system instability or denial of service conditions (NVD).
Mitigation and workarounds
According to Ubuntu's security advisory, many of their distributions are marked as 'Not affected' by this vulnerability, including Ubuntu 22.04 LTS, 20.04 LTS, and other versions (Ubuntu Security).
Additional resources
Source: This report was generated using AI
Related Linux Kernel vulnerabilities:
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