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action: fix UAF when using prompt during reconfigure

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Reported-by: @jlindgren90

Fixes #3106
This commit is contained in:
Johan Malm 2025-09-26 20:42:31 +01:00 • committed by Johan Malm
parent c9030dcc5b
commit 94c980c6be
3 changed files with 13 additions and 0 deletions
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1
include/action.h
View file

@ -50,6 +50,7 @@ bool actions_contain_toggle_keybinds(struct wl_list *action_list);
void actions_run(struct view *activator, struct server *server,
struct wl_list *actions, struct cursor_context *ctx);
void action_prompts_destroy(void);
bool action_check_prompt_result(pid_t pid, int exit_code);
void action_free(struct action *action);

9
src/action.c
View file

@ -867,6 +867,15 @@ cleanup:
buf_reset(&command);
}
void
action_prompts_destroy(void)
{
struct action_prompt *prompt, *tmp;
wl_list_for_each_safe(prompt, tmp, &prompts, link) {
action_prompt_destroy(prompt);
}
}
bool
action_check_prompt_result(pid_t pid, int exit_code)
{

3
src/server.c
View file

@ -78,6 +78,9 @@
static void
reload_config_and_theme(struct server *server)
{
/* Avoid UAF when dialog client is used during reconfigure */
action_prompts_destroy();
scaled_buffer_invalidate_sharing();
rcxml_finish();
rcxml_read(rc.config_file);