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-rw-r--r--libbcachefs.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/libbcachefs.c b/libbcachefs.c
index 58ef5297..da318611 100644
--- a/libbcachefs.c
+++ b/libbcachefs.c
@@ -196,7 +196,9 @@ struct bch_sb *bch2_format(struct format_opts opts,
uuid_generate(sb.sb->uuid.b);
if (opts.label)
- strncpy((char *) sb.sb->label, opts.label, sizeof(sb.sb->label));
+ memcpy(sb.sb->label,
+ opts.label,
+ min(strlen(opts.label), sizeof(sb.sb->label)));
SET_BCH_SB_CSUM_TYPE(sb.sb, opts.meta_csum_type);
SET_BCH_SB_META_CSUM_TYPE(sb.sb, opts.meta_csum_type);