On 2021-04-11 10:47, Kalle Valo wrote: > Felix Fietkau <nbd@xxxxxxxx> wrote: > >> With buf uninitialized in mt76_dma_tx_queue_skb_raw, its field skip_unmap >> could potentially inherit a non-zero value from stack garbage. >> If this happens, it will cause DMA mappings for MCU command frames to not be >> unmapped after completion >> >> Fixes: 27d5c528a7ca ("mt76: fix double DMA unmap of the first buffer on 7615/7915") >> Cc: stable@xxxxxxxxxxxxxxx >> Signed-off-by: Felix Fietkau <nbd@xxxxxxxx> > > Sorry, I missed this and I suspect it's now too late for v5.12. Felix, can you > instead take this to your tree so that we can get this to v5.13? I assigned > this to you on patchwork. Will do. I plan on sending an updated pull request today. - Felix