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Vulnerability DatabaseCVE-2022-49780
CVE-2022-49780:
Linux Kernel vulnerability analysis and mitigation
Overview
A vulnerability (CVE-2022-49780) was identified in the Linux kernel's SCSI target subsystem, specifically in the tcm_loop module. The issue was discovered and disclosed on May 1, 2025, affecting the Linux kernel's SCSI target functionality (NVD, Wiz).
Technical details
The vulnerability occurs in the tcm_loop_setup_hba_bus() function when device_register() fails. In this scenario, the name allocated by dev_set_name() needs to be freed. According to the device_register() documentation, put_device() should be used to release the reference in the error path. The fix involves calling put_device() to ensure the name can be freed in kobject_cleanup(). The 'tl_hba' component is handled separately and freed in tcm_loop_release_adapter() (NVD).
Impact
The vulnerability could lead to a memory leak in the Linux kernel's SCSI target subsystem, potentially affecting system resource management (Wiz).
Mitigation and workarounds
The issue has been resolved through a patch that properly implements the cleanup process using put_device() in the error path of tcm_loop_setup_hba_bus() (Wiz).
Additional resources
Source: This report was generated using AI
Related Linux Kernel vulnerabilities:
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