Thread (3 messages) 3 messages, 3 authors, 2025-09-25

Re: [PATCH net] octeontx2-pf: Fix potential use after free in otx2_tc_add_flow()

From: patchwork-bot+netdevbpf@kernel.org
Date: 2025-09-25 09:10:10
Also in: kernel-janitors, lkml

Hello:

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

On Tue, 23 Sep 2025 14:19:11 +0300 you wrote:
This code calls kfree_rcu(new_node, rcu) and then dereferences "new_node"
and then dereferences it on the next line.  Two lines later, we take
a mutex so I don't think this is an RCU safe region.  Re-order it to do
the dereferences before queuing up the free.

Fixes: 68fbff68dbea ("octeontx2-pf: Add police action for TC flower")
Signed-off-by: Dan Carpenter <redacted>

[...]
Here is the summary with links:
  - [net] octeontx2-pf: Fix potential use after free in otx2_tc_add_flow()
    https://git.kernel.org/netdev/net/c/d9c70e93ec59

You are awesome, thank you!
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