Messages in this thread | | | Subject | Re: [PATCH 1/1] vt_ioctl: prevent VT_RESIZEX font height change from causing potential out-of-bounds access | From | George Kennedy <> | Date | Wed, 29 Jul 2020 14:50:22 -0400 |
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Hi Greg,
I will re-work this patch based on comments from Dan.
Thank you, George
On 7/29/2020 8:53 AM, Greg KH wrote: > On Wed, Jul 29, 2020 at 08:39:41AM -0400, George Kennedy wrote: >> Add a VT_RESIZEX check to ensure that changing the font height will not >> cause a potential out-of-bounds access. The candidate font height contained >> in "v_clin", though below the max, could still result in accesses beyond >> the allocated font data size. >> >> Signed-off-by: George Kennedy <george.kennedy@oracle.com> >> Reported-by: syzbot+38a3699c7eaf165b97a6@syzkaller.appspotmail.com > Did syzbot also test this that it fixes the reported issue? > > What commit does this fix? Should it go back farther to stable releases > too? > > thanks, > > greg k-h
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