Copy_from_user on 64-bit versions of the Linux kernel...
Moderate severity
Unreviewed
Published
Jul 6, 2023
to the GitHub Advisory Database
•
Updated Apr 11, 2024
Description
Published by the National Vulnerability Database
May 25, 2023
Published to the GitHub Advisory Database
Jul 6, 2023
Last updated
Apr 11, 2024
Copy_from_user on 64-bit versions of the Linux kernel does not implement the __uaccess_begin_nospec allowing a user to bypass the "access_ok" check and pass a kernel pointer to copy_from_user(). This would allow an attacker to leak information. We recommend upgrading beyond commit 74e19ef0ff8061ef55957c3abd71614ef0f42f47
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