[Bug 275616] bwn driver causes kernel panic after connect

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275616

--- Comment #12 from Frank Hilgendorf <frank.hilgendorf@posteo.de> ---
I repeated the test 5 times. The 5 reports first entry was always
'ieee80211_encap+0x512'. The bug seems to work deterministic.

If it was kind of a race condition, where thread B frees the mbuf currently
processed by thread A, I would expect multiple KASAN reports to start with
different code lines because they should not be so exactly synchronized that
thread B would always hit exactly the same point of execution of thread A.

One more observation:
Running the test with an unencrypted WLAN connection produces no KASAN report
at all.

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