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CVE-2023-52754

Disclosure Date: May 21, 2024 •
CVE-2023-52754
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Description

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

media: imon: fix access to invalid resource for the second interface

imon driver probes two USB interfaces, and at the probe of the second
interface, the driver assumes blindly that the first interface got
bound with the same imon driver. It’s usually true, but it’s still
possible that the first interface is bound with another driver via a
malformed descriptor. Then it may lead to a memory corruption, as
spotted by syzkaller; imon driver accesses the data from drvdata as
struct imon_context object although it’s a completely different one
that was assigned by another driver.

This patch adds a sanity check — whether the first interface is
really bound with the imon driver or not — for avoiding the problem
above at the probe time.

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CVSS V3 Severity and Metrics
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General Information

Offensive Application
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OS
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Vulnerable Versions
Linux 0f5068519f89
Linux not down converted
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Vendors

  • Linux

Products

  • Linux
Technical Analysis