From c4a3c9785e9e554f5b89dd95c3071bd4f30cbdbc Mon Sep 17 00:00:00 2001 From: John Crispin Date: Mon, 22 Jan 2018 07:22:40 +0100 Subject: [PATCH] fix vfat volume label the libblkid copies len+1 bytes causing a buffer overrun. Signed-off-by: John Crispin --- libblkid-tiny/vfat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libblkid-tiny/vfat.c b/libblkid-tiny/vfat.c index e3daf75..9f3d395 100644 --- a/libblkid-tiny/vfat.c +++ b/libblkid-tiny/vfat.c @@ -303,7 +303,7 @@ static int probe_vfat(blkid_probe pr, const struct blkid_idmag *mag) struct vfat_super_block *vs; struct msdos_super_block *ms; const unsigned char *vol_label = 0; - unsigned char *vol_serno = NULL, vol_label_buf[11]; + unsigned char *vol_serno = NULL, vol_label_buf[12] = { 0 }; uint16_t sector_size = 0, reserved; uint32_t cluster_count, fat_size; const char *version = NULL; -- 2.25.1