[jsinterp] Handle NaN in bitwise operators

Closes #6131
2025-08-10 18:59:39 +00:00 · 2023-05-20 02:57:59 +05:30
parent f7f7a877bf
commit 1d7656184c
3 changed files with 20 additions and 1 deletions
--- a/yt_dlp/jsinterp.py
+++ b/yt_dlp/jsinterp.py
@@ -20,7 +20,12 @@ from .utils import (

 def _js_bit_op(op):
    def zeroise(x):
-        return 0 if x in (None, JS_Undefined) else x
+        if x in (None, JS_Undefined):
+            return 0
+        with contextlib.suppress(TypeError):
+            if math.isnan(x):  # NB: NaN cannot be checked by membership
+                return 0
+        return x

    def wrapped(a, b):
        return op(zeroise(a), zeroise(b)) & 0xffffffff