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[misc]: Terminate soc_name to fix out of bounds

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1. Terminate soc_name string to fix memory out of bounds
2. Fix all snprintf/strnlen warning

Change-Id: I4525c6e289a00d1509bc30ee69545d92f2f4b9cb
Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com>
This commit is contained in:
Shunqian Zheng
2020-04-28 11:27:14 +08:00
committed by Herman Chen
parent 32689b3708
commit 9464af395b
5 changed files with 12 additions and 8 deletions
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2
mpp/base/mpp_buffer_impl.cpp
View File

@@ -585,7 +585,7 @@ MppBufferGroupImpl *mpp_buffer_get_misc_group(MppBufferMode mode, MppBufferType
AutoMutex auto_lock(MppBufferService::get_lock());
MppBufferGroupImpl *misc = MppBufferService::get_instance()->get_misc(mode, type);
if (NULL == misc) {
char tag[16];
char tag[32];
RK_S32 offset = 0;
offset += snprintf(tag + offset, sizeof(tag) - offset, "misc");

4
osal/allocator/allocator_ion.c
View File

@@ -206,13 +206,15 @@ static RK_S32 find_dir_in_path(char *path, const char *dir_name,
return new_path_len;
}
#define MAX_PATH_NAME_SIZE 256
static RK_S32 check_sysfs_iommu()
{
RK_U32 i = 0;
RK_U32 dts_info_found = 0;
RK_U32 ion_info_found = 0;
RK_S32 ret = ION_DETECT_IOMMU_DISABLE;
char path[256];
char path[MAX_PATH_NAME_SIZE];
static char *dts_devices[] = {
"vpu_service",
"hevc_service",

5
osal/mpp_platform.cpp
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@@ -23,7 +23,7 @@
#include "mpp_common.h"
#include "mpp_platform.h"
#define MAX_SOC_NAME_LENGTH 64
#define MAX_SOC_NAME_LENGTH 128
class MppPlatformService;
@@ -195,9 +195,10 @@ MppPlatformService::MppPlatformService()
snprintf(soc_name, MAX_SOC_NAME_LENGTH, "unknown");
soc_name_len = read(fd, soc_name, MAX_SOC_NAME_LENGTH - 1);
if (soc_name_len > 0) {
soc_name[soc_name_len] = '\0';
/* replacing the termination character to space */
for (char *ptr = soc_name;; ptr = soc_name) {
ptr += strnlen (soc_name, MAX_SOC_NAME_LENGTH);
ptr += strnlen(soc_name, MAX_SOC_NAME_LENGTH);
if (ptr >= soc_name + soc_name_len - 1)
break;
*ptr = ' ';

5
osal/mpp_time.cpp
View File

@@ -264,7 +264,8 @@ static void *mpp_timer_thread(void *ctx)
if (fd_cnt && (events.events & EPOLLIN) && (events.data.fd == timer_fd)) {
RK_U64 exp = 0;
read(timer_fd, &exp, sizeof(exp));
ssize_t cnt = read(timer_fd, &exp, sizeof(exp));
mpp_assert(cnt == sizeof(exp));
impl->func(impl->ctx);
}
}
@@ -308,7 +309,7 @@ MppTimer mpp_timer_get(const char *name)
impl->initial = 1000;
impl->interval = 1000;
impl->check = timer_name;
snprintf(impl->name, sizeof(impl->name) - 1, name, NULL);
snprintf(impl->name, sizeof(impl->name), name, NULL);
return impl;
} while (0);

4
utils/mpi_enc_utils.c
View File

@@ -68,7 +68,7 @@ MPP_RET mpi_enc_test_cmd_update_by_args(MpiEncTestArgs* cmd, int argc, char **ar
size_t len = strnlen(next, MAX_FILE_NAME_LENGTH);
if (len) {
cmd->file_input = mpp_calloc(char, len + 1);
strncpy(cmd->file_input, next, len);
strcpy(cmd->file_input, next);
name_to_frame_format(cmd->file_input, &cmd->format);
}
} else {
@@ -81,7 +81,7 @@ MPP_RET mpi_enc_test_cmd_update_by_args(MpiEncTestArgs* cmd, int argc, char **ar
size_t len = strnlen(next, MAX_FILE_NAME_LENGTH);
if (len) {
cmd->file_output = mpp_calloc(char, len + 1);
strncpy(cmd->file_output, next, len);
strcpy(cmd->file_output, next);
name_to_coding_type(cmd->file_output, &cmd->type);
}
} else {