helpThe GNU Bourne-Again SHell - Support: sr #110008, memory leak detected in bash-5.0

 
 

sr #110008: memory leak detected in bash-5.0

Submitted by:  Ilya Shipitsin <chipitsine>
Submitted on:  Sun 15 Sep 2019 08:00:15 PM UTC  
 
Category:  None Priority:  5 - Normal
Severity:  3 - Normal Status:  Need Info
Privacy:  Public Assigned to:  None
Open/Closed:  Open Operating System:  None

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Wed 30 Oct 2019 01:11:50 PM UTC, comment #1: 

If you can send an example I can use to reproduce this, I'd appreciate it. It's going to be difficult to investigate without one.

Chet Ramey <chet>
Project Administrator
Sun 15 Sep 2019 08:00:15 PM UTC, original submission:  

I was investigating some app using valgrind. It spawned bash, and occasionely some leaks were detected in bash. It is Fedora 30, bash is pretty recent, i.e. 5.0, please have a look at findings

```

  •    diag  0.0 ==13498== 2 bytes in 1 blocks are still reachable in loss record 17 of 899^M
  •    diag  0.0 ==13498==    at 0x483880B: malloc (vg_replace_malloc.c:309)^M
  •    diag  0.0 ==13498==    by 0x198823: xmalloc (xmalloc.c:114)^M
  •    diag  0.0 ==13498==    by 0x156F71: make_variable_value (variables.c:2996)^M
  •    diag  0.0 ==13498==    by 0x15824D: bind_variable_internal (variables.c:3129)^M
  •    diag  0.0 ==13498==    by 0x15AE0A: initialize_shell_variables (variables.c:545)^M
  •    diag  0.0 ==13498==    by 0x138E09: shell_initialize (shell.c:1900)^M
  •    diag  0.0 ==13498==    by 0x137581: main (shell.c:576)^M
  •    diag  0.0 ==13498== ^M

```

and second one

```

  •    diag  0.0 ==13498== 2 bytes in 1 blocks are still reachable in loss record 21 of 899^M
  •    diag  0.0 ==13498==    at 0x483880B: malloc (vg_replace_malloc.c:309)^M
  •    diag  0.0 ==13498==    by 0x198823: xmalloc (xmalloc.c:114)^M
  •    diag  0.0 ==13498==    by 0x183753: array_create_element (array.c:523)^M
  •    diag  0.0 ==13498==    by 0x183C67: array_insert (array.c:563)^M
  •    diag  0.0 ==13498==    by 0x15B13E: make_vers_array (variables.c:984)^M
  •    diag  0.0 ==13498==    by 0x15B13E: initialize_shell_variables (variables.c:569)^M
  •    diag  0.0 ==13498==    by 0x138E09: shell_initialize (shell.c:1900)^M
  •    diag  0.0 ==13498==    by 0x137581: main (shell.c:576)^M
  •    diag  0.0 ==13498== ^M

```

Ilya Shipitsin <chipitsine>

 

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