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Change History

In the Linux kernel, the following vulnerability has been resolved:

net: xilinx: axienet: Enqueue Tx packets in dql before dmaengine starts

Enqueue packets in dql after dma engine starts causes race condition.
Tx transfer starts once dma engine is started and may execute dql dequeue
in completion before it gets queued. It results in following kernel crash
while running iperf stress test:

kernel BUG at lib/dynamic_queue_limits.c:99!
<snip>
Internal error: Oops - BUG: 00000000f2000800 [#1] SMP

kernel.org https://git.kernel.org/stable/c/5ccdcdf186aec6b9111845fd37e1757e9b413e2f [No types assigned]

kernel.org https://git.kernel.org/stable/c/def3dee25cbd1c9b2ed443c3f6180e952563de77 [No types assigned]