Search Linux Wireless

Re: [PATCH 5.12] mt76: fix potential DMA mapping leak

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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



[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Wireless Personal Area Network]     [Linux Bluetooth]     [Wireless Regulations]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite Hiking]     [MIPS Linux]     [ARM Linux]     [Linux RAID]

  Powered by Linux