CVS commit: src/sys

["Maxime Villard" <maxv%netbsd.org@localhost>]

Module Name:    src
Committed By:   maxv
Date:           Fri Oct  4 06:27:42 UTC 2019

Modified Files:
        src/sys/arch/amd64/include: types.h
        src/sys/arch/x86/include: bus_defs.h
        src/sys/arch/x86/x86: bus_dma.c
        src/sys/kern: subr_asan.c
        src/sys/sys: asan.h

Log Message:
Add DMA instrumentation in KASAN. We note the original buffer and length in
the map, and check the buffer on each bus_dmamap_sync. This allows us to
find DMA buffer overflows and UAFs, which couldn't be found before because
the device accesses to memory are outside of KASAN's control.


To generate a diff of this commit:
cvs rdiff -u -r1.62 -r1.63 src/sys/arch/amd64/include/types.h
cvs rdiff -u -r1.3 -r1.4 src/sys/arch/x86/include/bus_defs.h
cvs rdiff -u -r1.79 -r1.80 src/sys/arch/x86/x86/bus_dma.c
cvs rdiff -u -r1.14 -r1.15 src/sys/kern/subr_asan.c
cvs rdiff -u -r1.10 -r1.11 src/sys/sys/asan.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.