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[v2,2/3] libvduse: Replace strcpy() with strncpy()

Message ID 20220706095624.328-3-xieyongji@bytedance.com (mailing list archive)
State New, archived
Headers show
Series Fix some coverity issues on VDUSE | expand

Commit Message

Yongji Xie July 6, 2022, 9:56 a.m. UTC 
Coverity reported a string overflow issue since we copied
"name" to "dev_config->name" without checking the length.
This should be a false positive since we already checked
the length of "name" in vduse_name_is_invalid(). But anyway,
let's replace strcpy() with strncpy() (as a general library,
we'd like to minimize dependencies on other libraries, so we
didn't use g_strlcpy() here) to fix the coverity complaint.

Fixes: Coverity CID 1490224
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
---
 subprojects/libvduse/libvduse.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/subprojects/libvduse/libvduse.c b/subprojects/libvduse/libvduse.c
index 6374933881..1e36227388 100644
--- a/subprojects/libvduse/libvduse.c
+++ b/subprojects/libvduse/libvduse.c
@@ -1309,7 +1309,8 @@  VduseDev *vduse_dev_create(const char *name, uint32_t device_id,
         goto err_dev;
     }
 
-    strcpy(dev_config->name, name);
+    strncpy(dev_config->name, name, VDUSE_NAME_MAX);
+    dev_config->name[VDUSE_NAME_MAX - 1] = '\0';
     dev_config->device_id = device_id;
     dev_config->vendor_id = vendor_id;
     dev_config->features = features;