In the Linux kernel, the following vulnerability has been...
High severity
Unreviewed
Published
Feb 22, 2024
to the GitHub Advisory Database
•
Updated Jun 27, 2024
Description
Published by the National Vulnerability Database
Feb 22, 2024
Published to the GitHub Advisory Database
Feb 22, 2024
Last updated
Jun 27, 2024
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.
References