diff options
Diffstat (limited to 'executor/common_fuchsia.h')
| -rw-r--r-- | executor/common_fuchsia.h | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/executor/common_fuchsia.h b/executor/common_fuchsia.h index 004046020..0403deafc 100644 --- a/executor/common_fuchsia.h +++ b/executor/common_fuchsia.h @@ -104,13 +104,17 @@ static int fault_injected(int fail_fd) #if defined(SYZ_EXECUTOR) || defined(__NR_syz_mmap) long syz_mmap(size_t addr, size_t size) { - zx_handle_t mapping = 0; + zx_handle_t root = zx_vmar_root_self(); + zx_info_vmar_t info; + zx_status_t status = zx_object_get_info(root, ZX_INFO_VMAR, &info, sizeof(info), 0, 0); + if (status != ZX_OK) + error("zx_object_get_info(ZX_INFO_VMAR) failed: %d", status); uintptr_t res = 0; - uintptr_t offset = 16 << 20; - zx_status_t status = zx_vmar_allocate(zx_vmar_root_self(), addr - offset, size, - ZX_VM_FLAG_SPECIFIC | ZX_VM_FLAG_CAN_MAP_READ | ZX_VM_FLAG_CAN_MAP_WRITE, - &mapping, &res); - if (addr != res) + zx_handle_t mapping = 0; + status = zx_vmar_allocate(root, addr - info.base, size, + ZX_VM_FLAG_SPECIFIC | ZX_VM_FLAG_CAN_MAP_READ | ZX_VM_FLAG_CAN_MAP_WRITE, + &mapping, &res); + if (status == ZX_OK && addr != res) error("zx_vmar_allocate allocated wrong address: %p, want %p", (void*)res, (void*)addr); return status; } |