Re: [PATCH v2 net 0/2] net: enetc: fix command BD ring issues

patchwork-bot+netdevbpf
2026-04-17T02:40:50Z

Hello:

This series was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Wed, 15 Apr 2026 14:08:31 +0800 you wrote:
> Currently, the implementation of command BD ring has two issues, one is
> that the driver may obtain wrong consumer index of the ring, because the
> driver does not mask out the SBE bit of the CIR value, so a wrong index
> will be obtained when a SBE error ouccrs. The other one is that the DMA
> buffer may be used after free. If netc_xmit_ntmp_cmd() times out and
> returns an error, the pending command is not explicitly aborted, while
> ntmp_free_data_mem() unconditionally frees the DMA buffer. If the buffer
> has already been reallocated elsewhere, this may lead to silent memory
> corruption. Because the hardware eventually processes the pending command
> and perform a DMA write of the response to the physical address of the
> freed buffer. So this patch set is to fix these two issues.
>
> [...]

Here is the summary with links:
- [v2,net,1/2] net: enetc: correct the command BD ring consumer index
https://git.kernel.org/netdev/net/c/759a32900b6f
- [v2,net,2/2] net: enetc: fix NTMP DMA use-after-free issue
https://git.kernel.org/netdev/net/c/3cade698881e

You are awesome, thank you!
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