src/patches/bash/bash50-016

   1                              BASH PATCH REPORT
   2                              =================
   3
   4 Bash-Release:   5.0
   5 Patch-ID:       bash50-016
   6
   7 Bug-Reported-by:        sunnycemetery@gmail.com
   8 Bug-Reference-ID:       <20190316041534.GB22884@midnight>
   9 Bug-Reference-URL:      https://lists.gnu.org/archive/html/bug-bash/2019-03/msg00070.html
  10
  11 Bug-Description:
  12
  13 Bash waits too long to reap /dev/fd process substitutions used as redirections
  14 with loops and group commands, which can lead to file descriptor exhaustion.
  15
  16 Patch (apply with `patch -p0'):
  17
  18 *** ../bash-5.0-patched/execute_cmd.c   2019-04-19 15:46:36.000000000 -0400
  19 --- execute_cmd.c       2019-07-01 16:45:49.000000000 -0400
  20 ***************
  21 *** 1104,1107 ****
  22 --- 1085,1104 ----
  23         discard_unwind_frame ("internal_fifos");
  24       }
  25 + # if defined (HAVE_DEV_FD)
  26 +   /* Reap process substitutions at the end of loops */
  27 +   switch (command->type)
  28 +     {
  29 +     case cm_while:
  30 +     case cm_until:
  31 +     case cm_for:
  32 +     case cm_group:
  33 + #    if defined (ARITH_FOR_COMMAND)
  34 +     case cm_arith_for:
  35 + #    endif
  36 +       reap_procsubs ();
  37 +     default:
  38 +       break;
  39 +     }
  40 + #  endif /* HAVE_DEV_FD */
  41   #endif
  42
  43
  44 *** ../bash-5.0/patchlevel.h    2016-06-22 14:51:03.000000000 -0400
  45 --- patchlevel.h        2016-10-01 11:01:28.000000000 -0400
  46 ***************
  47 *** 26,30 ****
  48      looks for to find the patch level (for the sccs version string). */
  49
  50 ! #define PATCHLEVEL 15
  51
  52   #endif /* _PATCHLEVEL_H_ */
  53 --- 26,30 ----
  54      looks for to find the patch level (for the sccs version string). */
  55
  56 ! #define PATCHLEVEL 16
  57
  58   #endif /* _PATCHLEVEL_H_ */