When a character array without a terminating NUL character has a static initializer, GCC 15's -Wunterminated-string-initialization will only warn if the array lacks the "nonstring" attribute[1]. Mark the arrays with __nonstring to and correctly identify the char array as "not a C string" and thereby eliminate the warning.
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117178 [1] Cc: Jason A. Donenfeld <ja...@zx2c4.com> Cc: "Jason A. Donenfeld" <ja...@zx2c4.com> Cc: Andrew Lunn <andrew+net...@lunn.ch> Cc: "David S. Miller" <da...@davemloft.net> Cc: Eric Dumazet <eduma...@google.com> Cc: Jakub Kicinski <k...@kernel.org> Cc: Paolo Abeni <pab...@redhat.com> Cc: wiregu...@lists.zx2c4.com Cc: net...@vger.kernel.org Signed-off-by: Kees Cook <k...@kernel.org> --- drivers/net/wireguard/noise.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireguard/noise.c b/drivers/net/wireguard/noise.c index 202a33af5a72..7eb9a23a3d4d 100644 --- a/drivers/net/wireguard/noise.c +++ b/drivers/net/wireguard/noise.c @@ -25,8 +25,8 @@ * <- e, ee, se, psk, {} */ -static const u8 handshake_name[37] = "Noise_IKpsk2_25519_ChaChaPoly_BLAKE2s"; -static const u8 identifier_name[34] = "WireGuard v1 zx2c4 ja...@zx2c4.com"; +static const u8 handshake_name[37] __nonstring = "Noise_IKpsk2_25519_ChaChaPoly_BLAKE2s"; +static const u8 identifier_name[34] __nonstring = "WireGuard v1 zx2c4 ja...@zx2c4.com"; static u8 handshake_init_hash[NOISE_HASH_LEN] __ro_after_init; static u8 handshake_init_chaining_key[NOISE_HASH_LEN] __ro_after_init; static atomic64_t keypair_counter = ATOMIC64_INIT(0); -- 2.34.1
