m68k: emu: Replace unbounded sprintf() in nfhd_init_one()

Replace unbounded sprintf() with the safer snprintf().

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://patch.msgid.link/20260318001632.2974-3-thorsten.blum@linux.dev
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

diff --git a/arch/m68k/emu/nfblock.c b/arch/m68k/emu/nfblock.c
index 93536cf2a38ec70f2bd7f353b86ec8fac1606d20..fa6256c5af228ac268484f11fbb521841e4412b1 100644 (file)
--- a/arch/m68k/emu/nfblock.c
+++ b/arch/m68k/emu/nfblock.c
@@ -132,7 +132,8 @@ static int __init nfhd_init_one(int id, u32 blocks, u32 bsize)
        dev->disk->minors = 16;
        dev->disk->fops = &nfhd_ops;
        dev->disk->private_data = dev;
-       sprintf(dev->disk->disk_name, "nfhd%u", dev_id);
+       snprintf(dev->disk->disk_name, sizeof(dev->disk->disk_name), "nfhd%u",
+                dev_id);
        set_capacity(dev->disk, (sector_t)blocks * (bsize / 512));
        err = add_disk(dev->disk);
        if (err)