VYPR
High severity7.8NVD Advisory· Published Feb 22, 2024· Updated Jun 17, 2026

CVE-2023-52445

CVE-2023-52445

Description

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

media: pvrusb2: fix use after free on context disconnection

Upon module load, a kthread is created targeting the pvr2_context_thread_func function, which may call pvr2_context_destroy and thus call kfree() on the context object. However, that might happen before the usb hub_event handler is able to notify the driver. This patch adds a sanity check before the invalid read reported by syzbot, within the context disconnection call stack.

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Affected products

241

Patches

Vulnerability mechanics

References

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