Plan 9 from Bell Labs’s /n/sources/patch/applied/cons-drivers/readme

Copyright © 2009 Alcatel-Lucent.
Distributed under the Lucent Public License version 1.02.
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devcons didn't honor length argument for Qdrivers, resulting in a buffer overflow, which could lead to a kernel crash in case of e.g. read /dev/drivers.

the erratic behavior can be easily seen by

 syscall -o read 0 buf 1 < /dev/drivers

that would print the whole table instead of a single byte.


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