From: Jay Vosburgh Date: Mon, 9 Jan 2006 20:14:00 +0000 (-0800) Subject: [PATCH] bonding: UPDATED hash-table corruption in bond_alb.c X-Git-Tag: accepted/tizen/common/20141203.182822~40747^2~2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5af47b2ff124fdad9ba84baeb9f7eeebeb227b43;p=platform%2Fkernel%2Flinux-arm64.git [PATCH] bonding: UPDATED hash-table corruption in bond_alb.c I believe I see the race Michael refers to (tlb_choose_channel may set head, which tlb_init_slave clears), although I was not able to reproduce it. I have updated his patch for the current netdev-2.6.git tree and added a version update. His original comment follows: Our systems have been crashing during testing of PCI HotPlug support in the various networking components. We've faulted in the bonding driver due to a bug in bond_alb.c:tlb_clear_slave() In that routine, the last modification to the TLB hash table is made without protection of the lock, allowing a race that can lead tlb_choose_channel() to select an invalid table element. -J Signed-off-by: Jeff Garzik --- diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c index 854ddfb..f2a6318 100644 --- a/drivers/net/bonding/bond_alb.c +++ b/drivers/net/bonding/bond_alb.c @@ -169,9 +169,9 @@ static void tlb_clear_slave(struct bonding *bond, struct slave *slave, int save_ index = next_index; } - _unlock_tx_hashtbl(bond); - tlb_init_slave(slave); + + _unlock_tx_hashtbl(bond); } /* Must be called before starting the monitor timer */ diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h index f20bb85..3dd78d0 100644 --- a/drivers/net/bonding/bonding.h +++ b/drivers/net/bonding/bonding.h @@ -22,8 +22,8 @@ #include "bond_3ad.h" #include "bond_alb.h" -#define DRV_VERSION "3.0.0" -#define DRV_RELDATE "November 8, 2005" +#define DRV_VERSION "3.0.1" +#define DRV_RELDATE "January 9, 2006" #define DRV_NAME "bonding" #define DRV_DESCRIPTION "Ethernet Channel Bonding Driver"