linux-kernel - [PATCH 32/46] Driver core: warn when userspace writes to the uevent file in a non-supported way

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

Message-Id: <1177700156641-git-send-email-gregkh@suse.de>
Date:	Fri, 27 Apr 2007 11:53:46 -0700
From:	Greg Kroah-Hartman <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org
Cc:	Kay Sievers <kay.sievers@...y.org>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 32/46] Driver core: warn when userspace writes to the uevent file in a non-supported way

From: Kay Sievers <kay.sievers@...y.org>

In the future we will allow the uevent type to be written to the uevent
file to trigger the different types of uevents.  But for now, as we only
support the ADD event, warn if userspace tries to write anything else to
this file.

Signed-off-by: Kay Sievers <kay.sievers@...y.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 drivers/base/core.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 72c6ee5..f69305c 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -296,6 +296,9 @@ out:
 static ssize_t store_uevent(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t count)
 {
+	if (memcmp(buf, "add", 3) != 0)
+		dev_err(dev, "uevent: unsupported action-string; this will "
+			"be ignored in a future kernel version");
 	kobject_uevent(&dev->kobj, KOBJ_ADD);
 	return count;
 }
-- 
1.5.1.2

-
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/