Pipe segfault on master branch

[Gilles Espinasse]

Just looking to check my modprobe patch on master branch and I found some
segfaults there
lsmod | grep dummy;echo $?
Segmentation fault
Segmentation fault
139

lsmod work and grep dummy /proc/modules too
If I suppress echo $?, I still have the 2 segfault (but no more 139).

I find nothing written when I try
strace -o lsmod.log -f lsmod | grep dummy

.config attached

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