Re: [PATCH] net: wwan: iosm: validate msg_head before indexing msg_ring

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@xxxxxxxxxx>:

On Tue, 20 Oct 2026 17:42:49 +0800 you wrote:
> From: Liu Chao <liuc63@xxxxxxxxxxxx>
> 
> ipc_protocol_free_msg_get() reads msg_head from shared memory and
> uses it directly as an index into msg_ring[]. If the head is out
> of range, the subsequent memset() writes beyond the message ring.
> 
> Validate head against IPC_MEM_MSG_ENTRIES before using it as an
> index. The ring is a circular buffer, so a value outside the valid
> range indicates a corrupted head pointer; report the error and fail
> the allocation instead of writing out of bounds.
> 
> [...]

Here is the summary with links:
  - net: wwan: iosm: validate msg_head before indexing msg_ring
    https://git.kernel.org/netdev/net-next/c/46cbf85155e5

You are awesome, thank you!
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