On Wed, Aug 31, 2016 at 02:50:20PM -0700, John Stultz wrote: > UBSAN: Undefined behaviour in kernel/time/time.c:783:2 > signed integer overflow: > 5273 + 9223372036854771711 cannot be represented in type 'long int'
... > Line 783 is this: > > 783 set_normalized_timespec64(&res, lhs.tv_sec + rhs.tv_sec, > 784 lhs.tv_nsec + rhs.tv_nsec); ... > Note that this is not currently a huge concern since the kernel should be > built with -fno-strict-overflow by default, but could be a problem in the > future, a problem with older compilers, or other compilers than gcc. Is this really a concern at all? The value 9223372036854771711 is a huge number of seconds. Thanks, Richard
