BASH PATCH REPORT ================= Bash-Release: 5.1 Patch-ID: bash51-006 Bug-Reported-by: oguzismailuysal@gmail.com Bug-Reference-ID: Bug-Reference-URL: https://lists.gnu.org/archive/html/bug-bash/2020-12/msg00108.html Bug-Description: Make sure child processes forked to run command substitutions are in the proper process group. Patch (apply with `patch -p0'): *** ../bash-5.1-patched/subst.c 2020-12-16 17:01:32.000000000 -0500 --- subst.c 2020-12-25 19:20:25.000000000 -0500 *************** *** 6413,6416 **** --- 6413,6423 ---- interactive = 0; + #if defined (JOB_CONTROL) + /* Invariant: in child processes started to run command substitutions, + pipeline_pgrp == shell_pgrp. Other parts of the shell assume this. */ + if (pipeline_pgrp > 0 && pipeline_pgrp != shell_pgrp) + shell_pgrp = pipeline_pgrp; + #endif + set_sigint_handler (); /* XXX */ *** ../bash-5.1/patchlevel.h 2020-06-22 14:51:03.000000000 -0400 --- patchlevel.h 2020-10-01 11:01:28.000000000 -0400 *************** *** 26,30 **** looks for to find the patch level (for the sccs version string). */ ! #define PATCHLEVEL 5 #endif /* _PATCHLEVEL_H_ */ --- 26,30 ---- looks for to find the patch level (for the sccs version string). */ ! #define PATCHLEVEL 6 #endif /* _PATCHLEVEL_H_ */