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CVE-2024-26747

Disclosure Date: April 03, 2024 •
CVE-2024-26747
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Description

In the Linux kernel, the following vulnerability has been resolved:

usb: roles: fix NULL pointer issue when put module’s reference

In current design, usb role class driver will get usb_role_switch parent’s
module reference after the user get usb_role_switch device and put the
reference after the user put the usb_role_switch device. However, the
parent device of usb_role_switch may be removed before the user put the
usb_role_switch. If so, then, NULL pointer issue will be met when the user
put the parent module’s reference.

This will save the module pointer in structure of usb_role_switch. Then,
we don’t need to find module by iterating long relations.

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CVSS V3 Severity and Metrics
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Impact Score:
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Attack Vector (AV):
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General Information

Offensive Application
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Utility Class
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Ports
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OS
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Vulnerable Versions
Linux e279bf8e5189
Linux not down converted
Prerequisites
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Discovered By
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Metasploit Module
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Reporter
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Vendors

  • Linux

Products

  • Linux
Technical Analysis