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curl: fix memory leak when -h is used in config file

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Reported-by: antypanty on hackerone

Add test 748 to reproduce and verify fix

Closes #17306
This commit is contained in:
Daniel Stenberg 2025-05-09 23:43:22 +02:00
parent cd7904f5a9
commit 13032ff75c
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GPG key ID: 5CC908FDB71E12C2
7 changed files with 43 additions and 14 deletions
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9
src/tool_getparam.c
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@ -37,6 +37,7 @@
#include "tool_parsecfg.h"
#include "tool_main.h"
#include "tool_stderr.h"
#include "tool_help.h"
#include "var.h"
#include <memdebug.h> /* keep this as LAST include */
@ -2750,13 +2751,7 @@ ParameterError getparameter(const char *flag, /* f or -long-flag */
break;
case C_HELP: /* --help */
if(toggle) {
if(*nextarg) {
global->help_category = strdup(nextarg);
if(!global->help_category) {
err = PARAM_NO_MEM;
break;
}
}
tool_help((nextarg && *nextarg) ? nextarg : NULL);
err = PARAM_HELP_REQUESTED;
}
/* we now actually support --no-help too! */