Re: [PATCH net v2] dpaa2-switch: validate num_ifs to prevent out-of-bounds write

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@xxxxxxxxxx>:

On Tue, 24 Feb 2026 19:05:56 +0800 you wrote:
> The driver obtains sw_attr.num_ifs from firmware via dpsw_get_attributes()
> but never validates it against DPSW_MAX_IF (64). This value controls
> iteration in dpaa2_switch_fdb_get_flood_cfg(), which writes port indices
> into the fixed-size cfg->if_id[DPSW_MAX_IF] array. When firmware reports
> num_ifs >= 64, the loop can write past the array bounds.
> 
> Add a bound check for num_ifs in dpaa2_switch_init().
> 
> [...]

Here is the summary with links:
  - [net,v2] dpaa2-switch: validate num_ifs to prevent out-of-bounds write
    https://git.kernel.org/netdev/net/c/8a5752c6dcc0

You are awesome, thank you!
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