lkml.org 
[lkml]   [2024]   [Feb]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: CVE-2021-46934: i2c: validate user data in compat ioctl
On Tue, Feb 27, 2024 at 02:33:50PM +0100, Carlos López wrote:
> Hi,
>
> On 27/2/24 10:48, Greg Kroah-Hartman wrote:
> > Description
> > ===========
> >
> > In the Linux kernel, the following vulnerability has been resolved:
> >
> > i2c: validate user data in compat ioctl
> >
> > Wrong user data may cause warning in i2c_transfer(), ex: zero msgs.
> > Userspace should not be able to trigger warnings, so this patch adds
> > validation checks for user data in compact ioctl to prevent reported
> > warnings
>
> What's the security impact here exactly?

Userspace should never be able to trigger kernel warnings.

\
 
 \ /
  Last update: 2024-05-27 15:24    [W:0.043 / U:1.300 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site