qemu/include/exec
Alexander Bulekov fc1c8344e6 fuzz: ignore address_space_map is_write flag
We passed an is_write flag to the fuzz_dma_read_cb function to
differentiate between the mapped DMA regions that need to be populated
with fuzzed data, and those that don't. We simply passed through the
address_space_map is_write parameter. The goal was to cut down on
unnecessarily populating mapped DMA regions, when they are not read
from.

Unfortunately, nothing precludes code from reading from regions mapped
with is_write=true. For example, see:
https://lists.gnu.org/archive/html/qemu-devel/2021-01/msg04729.html

This patch removes the is_write parameter to fuzz_dma_read_cb. As a
result, we will fill all mapped DMA regions with fuzzed data, ignoring
the specified transfer direction.

Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Message-Id: <20210120060255.558535-1-alxndr@bu.edu>
2021-02-08 14:43:54 +01:00
..
user nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
address-spaces.h
confidential-guest-support.h confidential guest support: Introduce cgs "ready" flag 2021-02-08 16:57:38 +11:00
cpu-all.h accel/tcg: split TCG-only code from cpu_exec_realizefn 2021-02-05 10:24:14 -10:00
cpu-common.h vl: extract softmmu/globals.c 2020-12-15 12:51:50 -05:00
cpu-defs.h exec/cpu-defs: Remove TCG backends dependency 2021-02-05 10:24:14 -10:00
cpu_ldst.h overall/alpha tcg cpus|hppa: Fix Lesser GPL version number 2020-11-15 16:43:54 +01:00
cputlb.h overall/alpha tcg cpus|hppa: Fix Lesser GPL version number 2020-11-15 16:43:54 +01:00
exec-all.h tcg/tci: Make tci_tb_ptr thread-local 2021-02-05 10:24:14 -10:00
gdbstub.h gdbstub: drop gdbserver_cleanup in favour of gdb_exit 2021-01-18 10:05:06 +00:00
gen-icount.h tcg: Use tcg_constant_i32 with icount expander 2021-01-13 08:39:08 -10:00
helper-gen.h
helper-head.h
helper-proto.h tcg: Use memset for large vector byte replication 2021-01-04 06:32:58 -10:00
helper-tcg.h
hwaddr.h move MemMapEntry 2020-09-30 11:29:56 +02:00
ioport.h nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
log.h tcg: Introduce tcg_splitwx_to_{rx,rw} 2021-01-07 05:09:41 -10:00
memattrs.h
memop.h
memory-internal.h
memory.h fuzz: ignore address_space_map is_write flag 2021-02-08 14:43:54 +01:00
memory_ldst.h.inc nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
memory_ldst_cached.h.inc fuzz: ignore address_space_map is_write flag 2021-02-08 14:43:54 +01:00
memory_ldst_phys.h.inc nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
plugin-gen.h
poison.h poison: remove GNUC check 2020-12-15 12:53:13 -05:00
ram_addr.h memory: add readonly support to memory_region_init_ram_from_file() 2021-02-01 17:07:34 -05:00
ramblock.h
ramlist.h
softmmu-semi.h
target_page.h
tb-context.h nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
tb-hash.h overall/alpha tcg cpus|hppa: Fix Lesser GPL version number 2020-11-15 16:43:54 +01:00
tb-lookup.h
translate-all.h remove TCG includes from common code 2021-01-02 21:03:36 +01:00
translator.h tcg: Make DisasContextBase.tb const 2021-01-07 05:09:41 -10:00