diff --git a/Documentation/admin-guide/sysctl/fs.rst b/Documentation/admin-guide/sysctl/fs.rst
index 2a501c9ddc55..e364d6c45790 100644
--- a/Documentation/admin-guide/sysctl/fs.rst
+++ b/Documentation/admin-guide/sysctl/fs.rst
@@ -48,6 +48,7 @@ Currently, these files are in /proc/sys/fs:
 - suid_dumpable
 - super-max
 - super-nr
+- trusted_for_policy
 
 
 aio-nr & aio-max-nr
@@ -382,3 +383,52 @@ Each "watch" costs roughly 90 bytes on a 32bit kernel, and roughly 160 bytes
 on a 64bit one.
 The current default value for  max_user_watches  is the 1/25 (4%) of the
 available low memory, divided for the "watch" cost in bytes.
+
+
+trusted_for_policy
+------------------
+
+An interpreter can call :manpage:`trusted_for(2)` with a
+``TRUSTED_FOR_EXECUTION`` usage to check that opened regular files are expected
+to be executable.  If the file is not identified as executable, then the
+syscall returns -EACCES.  This may allow a script interpreter to check
+executable permission before reading commands from a file, or a dynamic linker
+to only load executable shared objects.  One interesting use case is to enforce
+a "write xor execute" policy through interpreters.
+
+The ability to restrict code execution must be thought as a system-wide policy,
+which first starts by restricting mount points with the ``noexec`` option.
+This option is also automatically applied to special filesystems such as /proc .
+This prevents files on such mount points to be directly executed by the kernel
+or mapped as executable memory (e.g. libraries).  With script interpreters
+using :manpage:`trusted_for(2)`, the executable permission can then be checked
+before reading commands from files.  This makes it possible to enforce the
+``noexec`` at the interpreter level, and thus propagates this security policy
+to scripts.  To be fully effective, these interpreters also need to handle the
+other ways to execute code: command line parameters (e.g., option ``-e`` for
+Perl), module loading (e.g., option ``-m`` for Python), stdin, file sourcing,
+environment variables, configuration files, etc.  According to the threat
+model, it may be acceptable to allow some script interpreters (e.g.  Bash) to
+interpret commands from stdin, may it be a TTY or a pipe, because it may not be
+enough to (directly) perform syscalls.
+
+There are two complementary security policies: enforce the ``noexec`` mount
+option, and enforce executable file permission.  These policies are handled by
+the ``fs.trusted_for_policy`` sysctl (writable only with ``CAP_SYS_ADMIN``) as
+a bitmask:
+
+1 - Mount restriction: checks that the mount options for the underlying VFS
+    mount do not prevent execution.
+
+2 - File permission restriction: checks that the file is marked as
+    executable for the current process (e.g., POSIX permissions, ACLs).
+
+Note that as long as a policy is enforced, checking any non-regular file with
+:manpage:`trusted_for(2)` returns -EACCES (e.g. TTYs, pipe), even when such a
+file is marked as executable or is on an executable mount point.
+
+Code samples can be found in
+tools/testing/selftests/interpreter/trust_policy_test.c and interpreter patches
+(for the original O_MAYEXEC) are available at
+https://github.com/clipos-archive/clipos4_portage-overlay/search?q=O_MAYEXEC .
+See also an overview article: https://lwn.net/Articles/820000/ .
diff --git a/fs/open.c b/fs/open.c
index daa324606a41..6b880266851c 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -32,6 +32,8 @@
 #include <linux/ima.h>
 #include <linux/dnotify.h>
 #include <linux/compat.h>
+#include <linux/sysctl.h>
+#include <uapi/linux/trusted-for.h>
 
 #include "internal.h"
 
@@ -480,6 +482,82 @@ SYSCALL_DEFINE2(access, const char __user *, filename, int, mode)
 	return do_faccessat(AT_FDCWD, filename, mode, 0);
 }
 
+#define TRUST_POLICY_EXEC_MOUNT			BIT(0)
+#define TRUST_POLICY_EXEC_FILE			BIT(1)
+
+int sysctl_trusted_for_policy __read_mostly;
+
+SYSCALL_DEFINE3(trusted_for, const int, fd, const enum trusted_for_usage, usage,
+		const u32, flags)
+{
+	int mask, err = -EACCES;
+	struct fd f;
+	struct inode *inode;
+
+	if (flags)
+		return -EINVAL;
+
+	/* Only handles execution for now. */
+	if (usage != TRUSTED_FOR_EXECUTION)
+		return -EINVAL;
+	mask = MAY_EXEC;
+
+	f = fdget(fd);
+	if (!f.file)
+		return -EBADF;
+	inode = file_inode(f.file);
+
+	/*
+	 * For compatibility reasons, without a defined security policy, we
+	 * must map the execute permission to the read permission.  Indeed,
+	 * from user space point of view, being able to execute data (e.g.
+	 * scripts) implies to be able to read this data.
+	 */
+	if ((mask & MAY_EXEC)) {
+		/*
+		 * If there is a system-wide execute policy enforced, then
+		 * forbids access to non-regular files and special superblocks.
+		 */
+		if ((sysctl_trusted_for_policy & (TRUST_POLICY_EXEC_MOUNT |
+						TRUST_POLICY_EXEC_FILE))) {
+			if (!S_ISREG(inode->i_mode))
+				goto out_fd;
+			/*
+			 * Denies access to pseudo filesystems that will never
+			 * be mountable (e.g. sockfs, pipefs) but can still be
+			 * reachable through /proc/self/fd, or memfd-like file
+			 * descriptors, or nsfs-like files.
+			 *
+			 * According to the selftests, SB_NOEXEC seems to be
+			 * only used by proc and nsfs filesystems.
+			 */
+			if ((f.file->f_path.dentry->d_sb->s_flags &
+						(SB_NOUSER | SB_KERNMOUNT | SB_NOEXEC)))
+				goto out_fd;
+		}
+
+		if ((sysctl_trusted_for_policy & TRUST_POLICY_EXEC_MOUNT) &&
+				path_noexec(&f.file->f_path))
+			goto out_fd;
+		/*
+		 * For compatibility reasons, if the system-wide policy doesn't
+		 * enforce file permission checks, then replaces the execute
+		 * permission request with a read permission request.
+		 */
+		if (!(sysctl_trusted_for_policy & TRUST_POLICY_EXEC_FILE))
+			mask &= ~MAY_EXEC;
+		/* To be executed *by* user space, files must be readable. */
+		mask |= MAY_READ;
+	}
+
+	err = inode_permission(file_mnt_user_ns(f.file), inode,
+			mask | MAY_ACCESS);
+
+out_fd:
+	fdput(f);
+	return err;
+}
+
 SYSCALL_DEFINE1(chdir, const char __user *, filename)
 {
 	struct path path;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index e7a633353fd2..9689b8a22ec5 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -86,6 +86,7 @@ extern int sysctl_protected_symlinks;
 extern int sysctl_protected_hardlinks;
 extern int sysctl_protected_fifos;
 extern int sysctl_protected_regular;
+extern int sysctl_trusted_for_policy;
 
 typedef __kernel_rwf_t rwf_t;
 
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 252243c7783d..8a69a6b1c1ef 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -71,6 +71,7 @@ struct open_how;
 struct mount_attr;
 struct landlock_ruleset_attr;
 enum landlock_rule_type;
+enum trusted_for_usage;
 
 #include <linux/types.h>
 #include <linux/aio_abi.h>
@@ -461,6 +462,7 @@ asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
 asmlinkage long sys_faccessat2(int dfd, const char __user *filename, int mode,
 			       int flags);
+asmlinkage long sys_trusted_for(int fd, enum trusted_for_usage usage, u32 flags);
 asmlinkage long sys_chdir(const char __user *filename);
 asmlinkage long sys_fchdir(unsigned int fd);
 asmlinkage long sys_chroot(const char __user *filename);
diff --git a/include/uapi/linux/trusted-for.h b/include/uapi/linux/trusted-for.h
new file mode 100644
index 000000000000..cc4f030c5103
--- /dev/null
+++ b/include/uapi/linux/trusted-for.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_LINUX_TRUSTED_FOR_H
+#define _UAPI_LINUX_TRUSTED_FOR_H
+
+/**
+ * enum trusted_for_usage - Usage for which a file descriptor is trusted
+ *
+ * Argument of trusted_for(2).
+ */
+enum trusted_for_usage {
+	/**
+	 * @TRUSTED_FOR_EXECUTION: Check that the data read from a file
+	 * descriptor is trusted to be executed or interpreted (e.g. scripts).
+	 */
+	TRUSTED_FOR_EXECUTION = 1,
+};
+
+#endif /* _UAPI_LINUX_TRUSTED_FOR_H */
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 083be6af29d7..002dc830c165 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -115,6 +115,7 @@ static int sixty = 60;
 
 static int __maybe_unused neg_one = -1;
 static int __maybe_unused two = 2;
+static int __maybe_unused three = 3;
 static int __maybe_unused four = 4;
 static unsigned long zero_ul;
 static unsigned long one_ul = 1;
@@ -936,7 +937,6 @@ static int proc_taint(struct ctl_table *table, int write,
 	return err;
 }
 
-#ifdef CONFIG_PRINTK
 static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
 				void *buffer, size_t *lenp, loff_t *ppos)
 {
@@ -945,7 +945,6 @@ static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
 
 	return proc_dointvec_minmax(table, write, buffer, lenp, ppos);
 }
-#endif
 
 /**
  * struct do_proc_dointvec_minmax_conv_param - proc_dointvec_minmax() range checking structure
@@ -3357,6 +3356,15 @@ static struct ctl_table fs_table[] = {
 		.extra1		= SYSCTL_ZERO,
 		.extra2		= &two,
 	},
+	{
+		.procname       = "trusted_for_policy",
+		.data           = &sysctl_trusted_for_policy,
+		.maxlen         = sizeof(int),
+		.mode           = 0600,
+		.proc_handler	= proc_dointvec_minmax_sysadmin,
+		.extra1		= SYSCTL_ZERO,
+		.extra2		= &three,
+	},
 #if defined(CONFIG_BINFMT_MISC) || defined(CONFIG_BINFMT_MISC_MODULE)
 	{
 		.procname	= "binfmt_misc",
