linux-kernel - [patch 1/1] schedule removal of FUTEX

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 31 Oct 2006 15:09:48 -0800
From:	akpm@...l.org
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...l.org, drepper@...hat.com, mingo@...e.hu,
	rusty@...tcorp.com.au, tglx@...utronix.de
Subject: [patch 1/1] schedule removal of FUTEX_FD

From: Andrew Morton <akpm@...l.org>

Apparently FUTEX_FD is unfixably racy and nothing uses it (or if it does, it
shouldn't).

Add a warning printk, give any remaining users six months to migrate off it.

Cc: Ulrich Drepper <drepper@...hat.com>
Cc: Ingo Molnar <mingo@...e.hu>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Rusty Russell <rusty@...tcorp.com.au>
Signed-off-by: Andrew Morton <akpm@...l.org>
---

 kernel/futex.c |    8 ++++++++
 1 files changed, 8 insertions(+)

diff -puN kernel/futex.c~schedule-removal-of-futex_fd kernel/futex.c
--- a/kernel/futex.c~schedule-removal-of-futex_fd
+++ a/kernel/futex.c
@@ -1507,6 +1507,14 @@ static int futex_fd(u32 __user *uaddr, i
 	struct futex_q *q;
 	struct file *filp;
 	int ret, err;
+	static int warn_count;
+
+	if (warn_count < 10) {
+		printk(KERN_WARNING "Process `%s' used FUTEX_FD, which "
+		    	"will be removed from the kernel in June 2007\n",
+			current->comm);
+		warn_count++;
+	}
 
 	ret = -EINVAL;
 	if (!valid_signal(signal))
_
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/