From 5aaa79ce96997825b4dcdcf5be10d8f955fb3339 Mon Sep 17 00:00:00 2001 From: Yu Watanabe Date: Sat, 10 Dec 2022 11:32:24 +0900 Subject: [PATCH] binfmt-util: also check if binfmt is mounted in read-write --- src/shared/binfmt-util.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/shared/binfmt-util.c b/src/shared/binfmt-util.c index e813c3ebcb..51fc245c01 100644 --- a/src/shared/binfmt-util.c +++ b/src/shared/binfmt-util.c @@ -8,6 +8,7 @@ #include "errno-util.h" #include "fd-util.h" #include "fileio.h" +#include "fs-util.h" #include "missing_magic.h" #include "stat-util.h" @@ -25,7 +26,7 @@ static int binfmt_mounted(void) { if (r <= 0) return r; - return true; + return access_fd(fd, W_OK) >= 0; } int disable_binfmt(void) { @@ -41,7 +42,7 @@ int disable_binfmt(void) { if (r < 0) return log_warning_errno(r, "Failed to determine whether binfmt_misc is mounted: %m"); if (r == 0) { - log_debug("binfmt_misc is not mounted, not detaching entries."); + log_debug("binfmt_misc is not mounted in read-write mode, not detaching entries."); return 0; }