Przemyslaw Frasunek pisze:
> FreeBSD <= 6.1 suffers from classical check/use race condition on SMP
There is yet another kqueue related vulnerability. It affects 6.x, up to
6.4-STABLE. FreeBSD security team was notified on 29th Aug, but there is no
response until now, so I won't publish any details
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FreeBSD <= 6.1 suffers from classical check/use race condition on SMP
systems in kevent() syscall, leading to kernel mode NULL pointer
dereference. It can be triggered by spawning two threads:
1st thread looping on open() and close() syscalls, and the
