This is a note to let you know that I've just added the patch titled
drivers/net/bonding/bond_3ad: return when there's no aggregator
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drivers-net-bonding-bond_3ad-return-when-there-s-no-.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 957709588ecf1922dd0ea67c5aa8d5c7a71c5e6d
Author: Daniil Tatianin <d-tatianin@xxxxxxxxxxxxxx>
Date: Mon Jan 2 12:53:35 2023 +0300
drivers/net/bonding/bond_3ad: return when there's no aggregator
[ Upstream commit 9c807965483f42df1d053b7436eedd6cf28ece6f ]
Otherwise we would dereference a NULL aggregator pointer when calling
__set_agg_ports_ready on the line below.
Found by Linux Verification Center (linuxtesting.org) with the SVACE
static analysis tool.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Daniil Tatianin <d-tatianin@xxxxxxxxxxxxxx>
Reviewed-by: Jiri Pirko <jiri@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 0d6cd2a4cc41..0c4e6fcac58e 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -1529,6 +1529,7 @@ static void ad_port_selection_logic(struct port *port, bool *update_slave_arr)
slave_err(bond->dev, port->slave->dev,
"Port %d did not find a suitable aggregator\n",
port->actor_port_number);
+ return;
}
}
/* if all aggregator's ports are READY_N == TRUE, set ready=TRUE
