Merge branch 'bridge-mcast-fix-a-possible-use-after-free-when-removing-a-bridge-port'

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Ido Schimmel says:

====================
bridge: mcast: Fix a possible use-after-free when removing a bridge port

Patch #1 fixes a possible use-after-free when removing a bridge port.

Patch #2 adds a test case that triggers the problem.

In net-next we can:

1. Add DEBUG_NET_WARN_ON_ONCE() when a port multicast context is
de-initialized while enabled.

2. When de-initializing a port multicast context, synchronously shutdown
all the timers that were initialized when the context was initialized.
====================

Link: https://patch.msgid.link/20260517121122.188333-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Jakub Kicinski 2026-05-19 18:15:23 -07:00

parent 9b244c242b ae743a8ca8

commit 90fc1a3937

2 changed files with 46 additions and 6 deletions

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22

net/bridge/br_multicast.c

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30

tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh

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