From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Dan Carpenter <dan.carpenter@oracle.com>,
Eric Paris <eparis@redhat.com>, Al Viro <viro@zeniv.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Luis Henriques <luis.henriques@canonical.com>
Subject: [ 10/22] fanotify: info leak in copy_event_to_user()
Date: Thu, 8 Aug 2013 18:41:26 -0700 [thread overview]
Message-ID: <20130809013951.453408312@linuxfoundation.org> (raw)
In-Reply-To: <20130809013949.226228694@linuxfoundation.org>
3.0-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dan Carpenter <dan.carpenter@oracle.com>
commit de1e0c40aceb9d5bff09c3a3b97b2f1b178af53f upstream.
The ->reserved field isn't cleared so we leak one byte of stack
information to userspace.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Eric Paris <eparis@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luis Henriques <luis.henriques@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/notify/fanotify/fanotify_user.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -118,6 +118,7 @@ static int fill_event_metadata(struct fs
metadata->event_len = FAN_EVENT_METADATA_LEN;
metadata->metadata_len = FAN_EVENT_METADATA_LEN;
metadata->vers = FANOTIFY_METADATA_VERSION;
+ metadata->reserved = 0;
metadata->mask = event->mask & FAN_ALL_OUTGOING_EVENTS;
metadata->pid = pid_vnr(event->tgid);
if (unlikely(event->mask & FAN_Q_OVERFLOW))
next prev parent reply other threads:[~2013-08-09 1:42 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-09 1:41 [ 00/22] 3.0.90-stable review Greg Kroah-Hartman
2013-08-09 1:41 ` [ 01/22] serial/mxs-auart: fix race condition in interrupt handler Greg Kroah-Hartman
2013-08-09 1:41 ` [ 02/22] serial/mxs-auart: increase time to wait for transmitter to become idle Greg Kroah-Hartman
2013-08-09 1:41 ` [ 03/22] ath9k_htc: do some initial hardware configuration Greg Kroah-Hartman
2013-08-09 1:41 ` [ 04/22] nl80211: fix mgmt tx status and testmode reporting for netns Greg Kroah-Hartman
2013-08-09 1:41 ` [ 05/22] mac80211: fix duplicate retransmission detection Greg Kroah-Hartman
2013-08-09 1:41 ` [ 06/22] rt2x00: fix stop queue Greg Kroah-Hartman
2013-08-09 1:41 ` [ 07/22] mwifiex: Add missing endian conversion Greg Kroah-Hartman
2013-08-09 1:41 ` [ 08/22] ACPI / battery: Fix parsing _BIX return value Greg Kroah-Hartman
2013-08-09 1:41 ` [ 09/22] sched: Fix the broken sched_rr_get_interval() Greg Kroah-Hartman
2013-08-09 1:41 ` Greg Kroah-Hartman [this message]
2013-08-09 1:41 ` [ 11/22] MAINTAINERS: fix up stable_kernel_rules.txt location Greg Kroah-Hartman
2013-08-09 1:41 ` [ 12/22] perf: Fix event group context move Greg Kroah-Hartman
2013-08-09 1:41 ` [ 13/22] x86, fpu: correct the asm constraints for fxsave, unbreak mxcsr.daz Greg Kroah-Hartman
2013-08-09 1:41 ` [ 14/22] perf: Use css_tryget() to avoid propping up css refcount Greg Kroah-Hartman
2013-08-09 1:41 ` [ 15/22] arcnet: cleanup sizeof parameter Greg Kroah-Hartman
2013-08-09 1:41 ` [ 16/22] sysctl net: Keep tcp_syn_retries inside the boundary Greg Kroah-Hartman
2013-08-09 1:41 ` [ 17/22] sctp: fully initialize sctp_outq in sctp_outq_init Greg Kroah-Hartman
2013-08-09 1:41 ` [ 18/22] ipv6: take rtnl_lock and mark mrt6 table as freed on namespace cleanup Greg Kroah-Hartman
2013-08-09 1:41 ` [ 19/22] usbnet: do not pretend to support SG/TSO Greg Kroah-Hartman
2013-08-09 1:41 ` [ 20/22] net_sched: Fix stack info leak in cbq_dump_wrr() Greg Kroah-Hartman
2013-08-09 1:41 ` [ 21/22] af_key: more info leaks in pfkey messages Greg Kroah-Hartman
2013-08-09 1:41 ` [ 22/22] net_sched: info leak in atm_tc_dump_class() Greg Kroah-Hartman
2013-08-09 3:42 ` [ 00/22] 3.0.90-stable review Guenter Roeck
2013-08-09 3:56 ` Greg Kroah-Hartman
2013-08-10 22:08 ` Shuah Khan
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