Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski [off-list ref]:

On Wed, 31 Jul 2024 16:46:24 -0700 you wrote:

syzbot reported a null-ptr-deref while accessing sk2->sk_reuseport_cb in
reuseport_add_sock(). [0]

The repro first creates a listener with SO_REUSEPORT.  Then, it creates
another listener on the same port and concurrently closes the first
listener.

[...]

Here is the summary with links:
  - [v2,net] sctp: Fix null-ptr-deref in reuseport_add_sock().
    https://git.kernel.org/netdev/net/c/9ab0faa7f9ff

You are awesome, thank you!
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