[dpdk-dev] [PATCH v3 01/40] drivers/bus/pci: fix strncpy dangerous code
Andy Green
andy at warmcat.com
Thu May 10 04:46:24 CEST 2018
In function ‘pci_get_kernel_driver_by_path’,
inlined from ‘pci_scan_one.isra.1’ at /home/agreen/projects/dpdk/
drivers/bus/pci/linux/pci.c:317:8:
/home/agreen/projects/dpdk/drivers/bus/pci/linux/pci.c:57:3: error:
‘strncpy’ specified bound depends on the length of the source argument
[-Werror=stringop-overflow=]
strncpy(dri_name, name + 1, strlen(name + 1) + 1);
Signed-off-by: Andy Green <andy at warmcat.com>
---
drivers/bus/pci/linux/pci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/bus/pci/linux/pci.c b/drivers/bus/pci/linux/pci.c
index 4630a8057..a73ee49c2 100644
--- a/drivers/bus/pci/linux/pci.c
+++ b/drivers/bus/pci/linux/pci.c
@@ -54,7 +54,7 @@ pci_get_kernel_driver_by_path(const char *filename, char *dri_name)
name = strrchr(path, '/');
if (name) {
- strncpy(dri_name, name + 1, strlen(name + 1) + 1);
+ strlcpy(dri_name, name + 1, sizeof(dri_name));
return 0;
}
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