Date: Wed, 10 Jun 2026 04:01:04 +0000 From: Kyle Evans <kevans@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 0de1f3a8aa7f - stable/14 - fexecve(2): call out a scenario where you want !O_EXEC Message-ID: <6a28e180.26769.25413336@gitrepo.freebsd.org>
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The branch stable/14 has been updated by kevans: URL: https://cgit.FreeBSD.org/src/commit/?id=0de1f3a8aa7f5e99aa63bcd76dfa3fd7e017d295 commit 0de1f3a8aa7f5e99aa63bcd76dfa3fd7e017d295 Author: Kyle Evans <kevans@FreeBSD.org> AuthorDate: 2026-05-01 03:02:55 +0000 Commit: Kyle Evans <kevans@FreeBSD.org> CommitDate: 2026-06-10 04:00:46 +0000 fexecve(2): call out a scenario where you want !O_EXEC We note a reason why you might need it, but there's an equally important reason you may need to omit it: interpreted programs. Add a note accordingly, along with the workaround configuration if there's reason you can't help it. PR: 294780 Reviewed by: Jan Bramkamp <crest_freebsd_rlwinm.de>, kib (cherry picked from commit 9c18d55a768a3e60ecaba1325e9a3e00a25dee26) --- lib/libc/sys/execve.2 | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/lib/libc/sys/execve.2 b/lib/libc/sys/execve.2 index ca5dbd09beee..22ffa268b220 100644 --- a/lib/libc/sys/execve.2 +++ b/lib/libc/sys/execve.2 @@ -27,7 +27,7 @@ .\" .\" @(#)execve.2 8.5 (Berkeley) 6/1/94 .\" -.Dd January 26, 2022 +.Dd June 8, 2026 .Dt EXECVE 2 .Os .Sh NAME @@ -231,6 +231,17 @@ is to use the .Dv O_EXEC flag when opening .Fa fd . +Opening without +.Dv O_EXEC +may be necessary in the case of executing an interpreted program, as the +interpreter will not be able to acquire a descriptor to the script for reading +without mounting +.Xr fdescfs 4 +on +.Pa /dev/fd +with the +.Cm nodup +option. Note that the file to be executed can not be open for writing. .Sh RETURN VALUES As thehome | help
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