On Fri, Apr 16, 2021 at 07:18:48PM +0200, Peter Zijlstra wrote: > On Fri, Apr 16, 2021 at 07:10:17PM +0200, Miguel Ojeda wrote: > > > Of course, UB is only a subset of errors, but it is a major one, and > > particularly critical for privileged code. > > I've seen relatively few UBSAN warnings that weren't due to UBSAN being > broken. Lucky you. 84c34df158cf215b0cd1475ab3b8e6f212f81f23 (i'd argue this is C being broken; promoting only as far as int, when assigning to an unsigned long is Bad, but until/unless either GCC fixes that or the language committee realises that being stuck in the 1970s is Bad, people are going to keep making this kind of mistake)
