Skip to content

fix infinite loop in terminator_EnumeratePhysicalDeviceGroups #2050

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
charles-lunarg merged 2 commits into from
Oct 10, 2026
Merged

fix infinite loop in terminator_EnumeratePhysicalDeviceGroups #2050

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
f770ea2
fix infinite loop in terminator_EnumeratePhysicalDeviceGroups
aizu-m Oct 8, 2026
6eff052
Make GCC happy by checking dest is not null for snprintf
charles-lunarg Oct 10, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 3 additions & 4 deletions loader/loader.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2544,10 +2544,7 @@ void loader_get_fullpath(const char *file, const char *in_dirs, size_t out_size,
char *next_dir = loader_get_next_path(dir);
while (*dir && next_dir) {
int path_concat_ret = snprintf(out_fullpath, out_size, "%s%c%s", dir, DIRECTORY_SYMBOL, file);
if (path_concat_ret < 0) {
continue;
}
if (loader_platform_file_exists(out_fullpath)) {
if (path_concat_ret >= 0 && loader_platform_file_exists(out_fullpath)) {
return;
}
dir = next_dir;
Expand Down Expand Up @@ -7785,6 +7782,7 @@ VKAPI_ATTR VkResult VKAPI_CALL terminator_EnumeratePhysicalDeviceGroups(
"terminator_EnumeratePhysicalDeviceGroups: Failed during dispatch call of \'EnumeratePhysicalDevices\' "
"to ICD %s to get plain phys dev count.",
icd_term->scanned_icd->lib_name);
icd_term = icd_term->next;
continue;
}
} else {
Expand All @@ -7795,6 +7793,7 @@ VKAPI_ATTR VkResult VKAPI_CALL terminator_EnumeratePhysicalDeviceGroups(
"terminator_EnumeratePhysicalDeviceGroups: Failed during dispatch call of "
"\'EnumeratePhysicalDeviceGroups\' to ICD %s to get count.",
icd_term->scanned_icd->lib_name);
icd_term = icd_term->next;
continue;
}
}
Expand Down
19 changes: 19 additions & 0 deletions tests/loader_regression_tests.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2504,6 +2504,25 @@ TEST(EnumeratePhysicalDeviceGroups, CallThriceAddGroupInBetween) {
}
}

// A driver which fails the physical device count query must be skipped, not retried forever.
TEST(EnumeratePhysicalDeviceGroups, DriverWhichFailsCountQueryIsSkipped) {
FrameworkEnvironment env{};
// A 1.0 driver does not expose vkEnumeratePhysicalDeviceGroups, so the loader counts its groups with
// vkEnumeratePhysicalDevices instead.
auto& driver = env.add_icd(TEST_ICD_PATH_VERSION_2).set_min_icd_interface_version(5);
driver.add_and_get_physical_device("physical_device_0");

InstWrapper inst{env.vulkan_functions};
inst.create_info.set_api_version(VK_API_VERSION_1_1);
inst.CheckCreate();

driver.set_enum_physical_devices_return_code(VK_ERROR_INITIALIZATION_FAILED);

uint32_t returned_group_count = 0;
ASSERT_EQ(VK_ERROR_INITIALIZATION_FAILED, inst->vkEnumeratePhysicalDeviceGroups(inst, &returned_group_count, nullptr));
ASSERT_EQ(0U, returned_group_count);
}

// Start with 7 devices in 4 different groups, and then remove a group,
// querying vkEnumeratePhysicalDeviceGroups before and after the remove.
TEST(EnumeratePhysicalDeviceGroups, CallTwiceRemoveGroupInBetween) {
Expand Down
Loading