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Fix: DEREF_AFTER_NULL.EX.COND phpdbg: add NULL check for param in PHPDBG_LIST(lines) #24040

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Fix: DEREF_AFTER_NULL.EX.COND phpdbg: add NULL check for param in PHPDBG_LIST(lines) #24040

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5 changes: 5 additions & 0 deletions sapi/phpdbg/phpdbg_list.c
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,11 @@ const phpdbg_command_t phpdbg_list_commands[] = {

PHPDBG_LIST(lines) /* {{{ */
{
if (!param) {
phpdbg_error("A line number or file is required");
return SUCCESS;
}

if (!PHPDBG_G(exec) && !zend_is_executing()) {
phpdbg_error("Not executing, and execution context not set");
return SUCCESS;
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