Date: Tue, 28 Apr 2026 19:47:15 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 294780] fexecve(2) only works for scripts if /dev/fd is mounted with the non-default nodup option. Message-ID: <bug-294780-227-Zb1fsBwhyZ@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-294780-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294780 --- Comment #6 from Jan Bramkamp <crest@bultmann.eu> --- I couldn't sleep and you're right. I had a stupid bug in my faccessat(2) based attempt. I used !! instead of a single ! to convert the return value to bool. Opening the file for reading, checking if it should be executeable with faccessat(O_EMPTY_PATH) then using fexecve() with a read only descriptor works. Sorry for taking up your time with my mistakes. No change to the mutally exclusive nature of O_RDONLY/O_WRONLY/O_RDWR/O_EXEC is needed because the kernel accepts both a O_RDONLY and O_EXEC. A hint not to use O_EXEC unless you really have an executable that isn't also readable to the process opening it would be helpful. -- You are receiving this mail because: You are the assignee for the bug.home | help
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