From 04af9ae3fcf0ad44a4214725c8e351a70341ad4d Mon Sep 17 00:00:00 2001
From: Peiyuan Song <squallatf@gmail.com>
Date: Mon, 8 Sep 2025 17:18:32 +0800
Subject: [PATCH] fix(emulation): handle fs.ErrNotExist in registeredBinfmtMisc

When `/proc/sys/fs/binfmt_misc` is not mounted, filepath.WalkDir may return
fs.ErrNotExist errors. These should be handled gracefully and return nil
instead of causing a panic.

Signed-off-by: Peiyuan Song <squallatf@gmail.com>
---
 pkg/emulation/binfmtmisc_linux.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkg/emulation/binfmtmisc_linux.go b/pkg/emulation/binfmtmisc_linux.go
index a67de0525c..90fc665690 100644
--- a/pkg/emulation/binfmtmisc_linux.go
+++ b/pkg/emulation/binfmtmisc_linux.go
@@ -27,7 +27,10 @@ func registeredBinfmtMisc() ([]string, error) {
 		if filepath.Base(path) == "register" { // skip this one
 			return nil
 		}
-		if err != nil && !errors.Is(err, os.ErrNotExist) {
+		if err != nil {
+			if errors.Is(err, fs.ErrNotExist) {
+				return nil
+			}
 			return err
 		}
 		info, err := d.Info()