* Re: CVE-2021-46934: i2c: validate user data in compat ioctl [not found] <2024022750-CVE-2021-46934-79c8@gregkh> @ 2024-02-27 13:33 ` Carlos López 2024-02-27 14:06 ` Greg Kroah-Hartman 0 siblings, 1 reply; 2+ messages in thread From: Carlos López @ 2024-02-27 13:33 UTC (permalink / raw) To: cve, linux-kernel; +Cc: Greg Kroah-Hartman 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? -- Carlos López Security Engineer SUSE Software Solutions ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: CVE-2021-46934: i2c: validate user data in compat ioctl 2024-02-27 13:33 ` CVE-2021-46934: i2c: validate user data in compat ioctl Carlos López @ 2024-02-27 14:06 ` Greg Kroah-Hartman 0 siblings, 0 replies; 2+ messages in thread From: Greg Kroah-Hartman @ 2024-02-27 14:06 UTC (permalink / raw) To: Carlos López; +Cc: cve, linux-kernel 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. ^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2024-02-27 14:31 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
[not found] <2024022750-CVE-2021-46934-79c8@gregkh>
2024-02-27 13:33 ` CVE-2021-46934: i2c: validate user data in compat ioctl Carlos López
2024-02-27 14:06 ` Greg Kroah-Hartman
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox