Re: [PATCH smatch] check_idr_alloc: Add a new check to detect start values < 0
Dan Carpenter <[email protected]> Fri, 27 Feb 2026 13:10:16 +0300
| Newsgroups | org.kernel.vger.smatch |
|---|---|
| Message-ID | <[email protected]> |
On Thu, Feb 26, 2026 at 05:21:37AM -0800, Harshit Mogalapalli wrote: > Motivation: https://lore.kernel.org/all/2026021413-CVE-2026-23149-8329@gregkh/ > > When user controlled data can pass start values < 0 to idr_alloc() > kernel hits a WARN_ON in run time. This check is to catch that using > static analysis. > > Signed-off-by: Harshit Mogalapalli <[email protected]> > --- Applied. Thanks, Harshit! regads, dan carpenter