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

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On 23/09/2025 12:19, Dan Carpenter 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 <dan.carpenter@xxxxxxxxxx>

Reviewed-by: Vadim Fedorenko <vadim.fedorenko@xxxxxxxxx>




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