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linux/drivers/net/bonding
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Hangbin Liu 4c0bfb2dc6 bonding: don't set oif to bond dev when getting NS target destination 
[ Upstream commit a8ba87f04c ]

Unlike IPv4, IPv6 routing strictly requires the source address to be valid
on the outgoing interface. If the NS target is set to a remote VLAN interface,
and the source address is also configured on a VLAN over a bond interface,
setting the oif to the bond device will fail to retrieve the correct
destination route.

Fix this by not setting the oif to the bond device when retrieving the NS
target destination. This allows the correct destination device (the VLAN
interface) to be determined, so that bond_verify_device_path can return the
proper VLAN tags for sending NS messages.

Reported-by: David Wilder <wilder@us.ibm.com>
Closes: https://lore.kernel.org/netdev/aGOKggdfjv0cApTO@fedora/
Suggested-by: Jay Vosburgh <jv@jvosburgh.net>
Tested-by: David Wilder <wilder@us.ibm.com>
Acked-by: Jay Vosburgh <jv@jvosburgh.net>
Fixes: 4e24be018e ("bonding: add new parameter ns_targets")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/20250916080127.430626-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-09-25 11:13:44 +02:00
..
bond_3ad.c bonding: send LACPDUs periodically in passive mode after receiving partner's LACPDU 2025-08-28 16:31:15 +02:00
bond_alb.c bonding: return -ENOMEM instead of BUG in alb_upper_dev_walk 2023-11-21 12:06:50 +01:00
bond_debugfs.c bonding: remove redundant NULL check in debugfs function 2023-08-11 11:10:55 +01:00
bond_main.c bonding: don't set oif to bond dev when getting NS target destination 2025-09-25 11:13:44 +02:00
bond_netlink.c bonding: no longer use RTNL in bonding_show_queue_id() 2024-04-09 17:31:45 -07:00
bond_options.c bonding: update LACP activity flag after setting lacp_active 2025-08-28 16:31:15 +02:00
bond_procfs.c bonding: no longer use RTNL in bonding_show_queue_id() 2024-04-09 17:31:45 -07:00
bond_sysfs.c bonding: no longer use RTNL in bonding_show_queue_id() 2024-04-09 17:31:45 -07:00
bond_sysfs_slave.c bonding: no longer use RTNL in bonding_show_queue_id() 2024-04-09 17:31:45 -07:00
bonding_priv.h net: bonding: Add SPDX identifier to remaining files 2023-05-16 15:38:06 +02:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00