Don't print bug report in asan_death_callback when no VM

peterzhu2118 · peterzhu2118 · commit 97f55466760d · 2024-12-20T15:04:08.000-05:00
If we don't have the VM (e.g. printing memory leaks in LSAN after shutdown) then we will crash when we try to print the bug report. This issue was reported in: ruby#12309 (comment)
diff --git a/gc.c b/gc.c
@@ -940,7 +940,9 @@ ruby_modular_gc_init(void)
 static void
 asan_death_callback(void)
 {
-    rb_bug_without_die("ASAN error");
+    if (GET_VM()) {
+        rb_bug_without_die("ASAN error");
+    }
 }
 #endif
 

Original file line number	Diff line number	Diff line change
`@@ -940,7 +940,9 @@ ruby_modular_gc_init(void)`
`940`	`940`	`static void`
`941`	`941`	`asan_death_callback(void)`
`942`	`942`	`{`
`943`		`- rb_bug_without_die("ASAN error");`
	`943`	`+ if (GET_VM()) {`
	`944`	`+ rb_bug_without_die("ASAN error");`
	`945`	`+ }`
`944`	`946`	`}`
`945`	`947`	`#endif`
`946`	`948`