I noticed chpst -n didn't work and found this fix. I just patched it in Void, other distros may want to apply this too.
Fix UB which breaks -n with negative nice values. Ensure optarg is incremented strictly before it is read from. --- runit-2.1.2/src/chpst.c.orig +++ runit-2.1.2/src/chpst.c @@ -308,7 +308,7 @@ case 'n': switch (*optarg) { case '-': - if (optarg[scan_ulong(++optarg, &ul)]) usage(); nicelvl =ul; + ++optarg; if (optarg[scan_ulong(optarg, &ul)]) usage(); nicelvl =ul; nicelvl *=-1; break; case '+': ++optarg; -- Leah Neukirchen <l...@vuxu.org> https://leahneukirchen.org/