In the Linux kernel, the following vulnerability has been...
Unreviewed
Published
Apr 3, 2024
to the GitHub Advisory Database
•
Updated Jun 27, 2024
Description
Published by the National Vulnerability Database
Apr 3, 2024
Published to the GitHub Advisory Database
Apr 3, 2024
Last updated
Jun 27, 2024
In the Linux kernel, the following vulnerability has been resolved:
dm-crypt: don't modify the data when using authenticated encryption
It was said that authenticated encryption could produce invalid tag when
the data that is being encrypted is modified [1]. So, fix this problem by
copying the data into the clone bio first and then encrypt them inside the
clone bio.
This may reduce performance, but it is needed to prevent the user from
corrupting the device by writing data with O_DIRECT and modifying them at
the same time.
[1] https://lore.kernel.org/all/20240207004723.GA35324@sol.localdomain/T/
References