Re: [PATCH 04/11] evm: Check size of security.evm before using it

From: Mimi Zohar
Date: Mon Aug 24 2020 - 08:15:05 EST


On Thu, 2020-06-18 at 18:01 +0200, Roberto Sassu wrote:
> This patch checks the size for the EVM_IMA_XATTR_DIGSIG and
> EVM_XATTR_PORTABLE_DIGSIG types to ensure that the algorithm is read from
> the buffer returned by vfs_getxattr_alloc().
>
> Cc: stable@xxxxxxxxxxxxxxx # 4.19.x
> Fixes: 5feeb61183dde ("evm: Allow non-SHA1 digital signatures")
> Signed-off-by: Roberto Sassu <roberto.sassu@xxxxxxxxxx>

Reviewed-by: Mimi Zohar <zohar@xxxxxxxxxxxxx>