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
| ||
|
Message-Id: <1293257174-15498-7-git-send-email-jeffrey.t.kirsher@intel.com> Date: Fri, 24 Dec 2010 22:06:05 -0800 From: jeffrey.t.kirsher@...el.com To: davem@...emloft.net Cc: Greg Rose <gregory.v.rose@...el.com>, netdev@...r.kernel.org, gospo@...hat.com, bphilips@...ell.com, Jeff Kirsher <jeffrey.t.kirsher@...el.com> Subject: [net-next-2.6 06/15] igb: Fix overwrite of the VF's flags From: Greg Rose <gregory.v.rose@...el.com> The vf flags were being overwritten causing the flag that indicates that the PF has set the VF MAC address to get cleared. This would allow the VF to override the MAC address assigned by the Host VMM using the ip link set command. Signed-off-by: Greg Rose <gregory.v.rose@...el.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com> --- drivers/net/igb/igb_main.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index 62348fc..be426a4 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -1654,7 +1654,7 @@ void igb_reset(struct igb_adapter *adapter) if (adapter->vfs_allocated_count) { int i; for (i = 0 ; i < adapter->vfs_allocated_count; i++) - adapter->vf_data[i].flags = 0; + adapter->vf_data[i].flags &= IGB_VF_FLAG_PF_SET_MAC; /* ping all the active vfs to let them know we are going down */ igb_ping_all_vfs(adapter); @@ -4971,8 +4971,8 @@ static int igb_set_vf_vlan(struct igb_adapter *adapter, u32 *msgbuf, u32 vf) static inline void igb_vf_reset(struct igb_adapter *adapter, u32 vf) { - /* clear flags */ - adapter->vf_data[vf].flags &= ~(IGB_VF_FLAG_PF_SET_MAC); + /* clear flags - except flag that indicates PF has set the MAC */ + adapter->vf_data[vf].flags &= IGB_VF_FLAG_PF_SET_MAC; adapter->vf_data[vf].last_nack = jiffies; /* reset offloads to defaults */ @@ -5026,7 +5026,7 @@ static void igb_vf_reset_msg(struct igb_adapter *adapter, u32 vf) reg = rd32(E1000_VFRE); wr32(E1000_VFRE, reg | (1 << vf)); - adapter->vf_data[vf].flags = IGB_VF_FLAG_CTS; + adapter->vf_data[vf].flags |= IGB_VF_FLAG_CTS; /* reply to reset with ack and vf mac address */ msgbuf[0] = E1000_VF_RESET | E1000_VT_MSGTYPE_ACK; -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists