Multiple threads calling the same function may cause condition
race issues, which often leads to abnormal behavior and can cause
more serious vulnerabilities such as abnormal termination, denial
of service, and compromised data integrity.
The strtok() is non-reentrant, it is better to replace it with a
reentrant version.
Fixes: 9ccb76b24c1d ("bus/fslmc: enable portal interrupt handling")
Fixes: 828d51d8fc3e ("bus/fslmc: refactor scan and probe functions")
Cc: stable@dpdk.org
Signed-off-by: Jie Hai <haijie1@huawei.com>
Acked-by: Chengwen Feng <fengchengwen@huawei.com>
---
drivers/bus/fslmc/fslmc_bus.c | 5 +++--
drivers/bus/fslmc/portal/dpaa2_hw_dpio.c | 4 ++--
2 files changed, 5 insertions(+), 4 deletions(-)
@@ -131,6 +131,7 @@ scan_one_fslmc_device(char *dev_name)
{
char *dup_dev_name, *t_ptr;
struct rte_dpaa2_device *dev = NULL;
+ char *sp = NULL;
int ret = -1;
if (!dev_name)
@@ -168,7 +169,7 @@ scan_one_fslmc_device(char *dev_name)
}
/* Parse the device name and ID */
- t_ptr = strtok(dup_dev_name, ".");
+ t_ptr = strtok_r(dup_dev_name, ".", &sp);
if (!t_ptr) {
DPAA2_BUS_ERR("Invalid device found: (%s)", dup_dev_name);
ret = -EINVAL;
@@ -199,7 +200,7 @@ scan_one_fslmc_device(char *dev_name)
else
dev->dev_type = DPAA2_UNKNOWN;
- t_ptr = strtok(NULL, ".");
+ t_ptr = strtok_r(NULL, ".", &sp);
if (!t_ptr) {
DPAA2_BUS_ERR("Skipping invalid device (%s)", dup_dev_name);
ret = 0;
@@ -129,7 +129,7 @@ dpaa2_affine_dpio_intr_to_respective_core(int32_t dpio_id, int cpu_id)
uint32_t cpu_mask = 1;
int ret;
size_t len = 0;
- char *temp = NULL, *token = NULL;
+ char *temp = NULL, *token = NULL, *sp = NULL;
char string[STRING_LEN], command[COMMAND_LEN];
FILE *file;
@@ -141,7 +141,7 @@ dpaa2_affine_dpio_intr_to_respective_core(int32_t dpio_id, int cpu_id)
}
while (getline(&temp, &len, file) != -1) {
if ((strstr(temp, string)) != NULL) {
- token = strtok(temp, ":");
+ token = strtok_r(temp, ":", &sp);
break;
}
}