[PATCH] module: Replace deprecated strncpy() with strscpy()

From: Thorsten Blum
Date: Fri Mar 07 2025 - 06:36:47 EST


strncpy() is deprecated for NUL-terminated destination buffers; use
strscpy() instead. The destination buffer ownername is only used with
"%s" format strings and must therefore be NUL-terminated, but not NUL-
padded.

No functional changes intended.

Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@xxxxxxxxxxxxxxx
Signed-off-by: Thorsten Blum <thorsten.blum@xxxxxxxxx>
---
kernel/module/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/module/main.c b/kernel/module/main.c
index 1fb9ad289a6f..2b88c91c89e3 100644
--- a/kernel/module/main.c
+++ b/kernel/module/main.c
@@ -1189,7 +1189,7 @@ static const struct kernel_symbol *resolve_symbol(struct module *mod,

getname:
/* We must make copy under the lock if we failed to get ref. */
- strncpy(ownername, module_name(fsa.owner), MODULE_NAME_LEN);
+ strscpy(ownername, module_name(fsa.owner), MODULE_NAME_LEN);
unlock:
mutex_unlock(&module_mutex);
return fsa.sym;
--
2.48.1