From: Greg KH <gregkh@suse.de>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org,
alan@lxorguk.ukuu.org.uk, Ben Hutchings <ben@decadent.org.uk>,
"David S. Miller" <davem@davemloft.net>
Subject: [34/40] igmp: Avoid zero delay when receiving odd mixture of IGMP queries
Date: Tue, 10 Jan 2012 13:45:47 -0800 [thread overview]
Message-ID: <20120110214621.181776153@clark.kroah.org> (raw)
In-Reply-To: <20120110214630.GA14384@kroah.com>
3.0-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ben Hutchings <ben@decadent.org.uk>
commit a8c1f65c79cbbb2f7da782d4c9d15639a9b94b27 upstream.
Commit 5b7c84066733c5dfb0e4016d939757b38de189e4 ('ipv4: correct IGMP
behavior on v3 query during v2-compatibility mode') added yet another
case for query parsing, which can result in max_delay = 0. Substitute
a value of 1, as in the usual v3 case.
Reported-by: Simon McVittie <smcv@debian.org>
References: http://bugs.debian.org/654876
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/ipv4/igmp.c | 2 ++
1 file changed, 2 insertions(+)
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -875,6 +875,8 @@ static void igmp_heard_query(struct in_d
* to be intended in a v3 query.
*/
max_delay = IGMPV3_MRC(ih3->code)*(HZ/IGMP_TIMER_SCALE);
+ if (!max_delay)
+ max_delay = 1; /* can't mod w/ 0 */
} else { /* v3 */
if (!pskb_may_pull(skb, sizeof(struct igmpv3_query)))
return;
next prev parent reply other threads:[~2012-01-10 22:58 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-10 21:46 [00/40] 3.0.17-stable review Greg KH
2012-01-10 21:45 ` [01/40] MAINTAINERS: stable: Update address Greg KH
2012-01-10 21:45 ` [02/40] Documentation: Update stable address Greg KH
2012-01-10 21:45 ` [03/40] firmware: Fix an oops on reading fw_priv->fw in sysfs loading file Greg KH
2012-01-10 21:45 ` [04/40] rt2800usb: Move ID out of unknown Greg KH
2012-01-10 21:45 ` [05/40] offb: Fix setting of the pseudo-palette for >8bpp Greg KH
2012-01-10 21:45 ` [06/40] offb: Fix bug in calculating requested vram size Greg KH
2012-01-10 21:45 ` [07/40] wl12xx: Validate FEM index from ini file and FW Greg KH
2012-01-10 21:45 ` [08/40] wl12xx: Check buffer bound when processing nvs data Greg KH
2012-01-10 21:45 ` [09/40] powerpc/time: Handle wrapping of decrementer Greg KH
2012-01-10 21:45 ` [10/40] powerpc: Fix unpaired probe_hcall_entry and probe_hcall_exit Greg KH
2012-01-10 21:45 ` [11/40] asix: new device id Greg KH
2012-01-10 21:45 ` [12/40] IB/qib: Fix a possible data corruption when receiving packets Greg KH
2012-01-10 21:45 ` [13/40] perf: Fix parsing of __print_flags() in TP_printk() Greg KH
2012-01-10 21:45 ` [14/40] reiserfs: Fix quota mount option parsing Greg KH
2012-01-10 21:45 ` [15/40] reiserfs: Force inode evictions before umount to avoid crash Greg KH
2012-01-10 21:45 ` [16/40] ext3: Dont warn from writepage when readonly inode is spotted after error Greg KH
2012-01-10 21:45 ` [17/40] USB: update documentation for usbmon Greg KH
2012-01-10 21:45 ` [18/40] atmel_serial: fix spinlock lockup in RS485 code Greg KH
2012-01-10 21:45 ` [19/40] cgroup: fix to allow mounting a hierarchy by name Greg KH
2012-01-10 21:45 ` [20/40] udf: Fix deadlock when converting file from in-ICB one to normal one Greg KH
2012-01-10 21:45 ` [21/40] drivers/usb/class/cdc-acm.c: clear dangling pointer Greg KH
2012-01-10 21:45 ` [22/40] USB: isight: fix kernel bug when loading firmware Greg KH
2012-01-10 21:45 ` [23/40] usb: usb-storage doesnt support dynamic id currently, the patch disables the feature to fix an oops Greg KH
2012-01-10 21:45 ` [24/40] USB: add quirk for another camera Greg KH
2012-01-10 21:45 ` [25/40] usb: musb: fix pm_runtime mismatch Greg KH
2012-01-10 21:45 ` [26/40] USB: omninet: fix write_room Greg KH
2012-01-10 21:45 ` [27/40] USB: Add USB-ID for Multiplex RC serial adapter to cp210x.c Greg KH
2012-01-10 21:45 ` [28/40] usb: fix number of mapped SG DMA entries Greg KH
2012-01-10 21:45 ` [29/40] xhci: Properly handle COMP_2ND_BW_ERR Greg KH
2012-01-10 21:45 ` [30/40] USB: option: add id for 3G dongle Model VT1000 of Viettel Greg KH
2012-01-10 21:45 ` [31/40] usb: option: add ZD Incorporated HSPA modem Greg KH
2012-01-10 21:45 ` [32/40] usb: ch9: fix up MaxStreams helper Greg KH
2012-01-10 21:45 ` [33/40] OHCI: final fix for NVIDIA problems (I hope) Greg KH
2012-01-10 21:45 ` Greg KH [this message]
2012-01-10 21:45 ` [35/40] asix: fix infinite loop in rx_fixup() Greg KH
2012-01-10 21:45 ` [36/40] bonding: fix error handling if slave is busy (v2) Greg KH
2012-01-10 21:45 ` [37/40] PM / Sleep: Fix race between CPU hotplug and freezer Greg KH
2012-01-10 21:45 ` [38/40] SCSI: mpt2sas: Added missing mpt2sas_base_detach call from scsih_remove context Greg KH
2012-01-10 21:45 ` [39/40] usb: cdc-acm: Fix acm_tty_hangup() vs. acm_tty_close() race Greg KH
2012-01-10 21:45 ` [40/40] xfs: fix acl count validation in xfs_acl_from_disk() Greg KH
2012-01-11 22:21 ` [00/40] 3.0.17-stable review Nick Bowler
2012-01-12 23:01 ` Greg KH
2012-01-12 23:15 ` David Miller
2012-01-17 17:47 ` Greg KH
2012-01-26 18:35 ` Greg KH
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