Hello:
This patch was applied to bpf/bpf.git (master)
by Martin KaFai Lau <martin.lau@xxxxxxxxxx>:
On Tue, 5 Mar 2024 22:31:32 +0100 you wrote:
> When running an XDP program that is attached to a cpumap entry, we don't
> initialise the xdp_rxq_info data structure being used in the xdp_buff
> that backs the XDP program invocation. Tobias noticed that this leads to
> random values being returned as the xdp_md->rx_queue_index value for XDP
> programs running in a cpumap.
>
> This means we're basically returning the contents of the uninitialised
> memory, which is bad. Fix this by zero-initialising the rxq data
> structure before running the XDP program.
>
> [...]
Here is the summary with links:
- [bpf] cpumap: Zero-initialise xdp_rxq_info struct before running XDP program
https://git.kernel.org/bpf/bpf/c/2487007aa3b9
You are awesome, thank you!
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