bug#55212: GNU Linux "sort -g" can hang indefinitely when run on standard input if NaNs are involved

Thanks for the bug report. This bug is entertaining, as it comes from GCC now being so smart that it optimizes away a memset that cleared padding bits. We added the memset in coreutils 8.14 (2011) to try to fix the sort -g infinite loop bug (introduced in 1999), but the memset isn't guaranteed

bug#55212: GNU Linux "sort -g" can hang indefinitely when run on standard input if NaNs are involved

As explained here , when running "sort -g" from standard input, if NaNs are involved, this can cause "sort -g" to hang indefinitely while consuming 100% of the CPU. This seem