Add CVE ID to debian changelog

[sven/exfatprogs.git] / dump / dump.c

diff --git a/dump/dump.c b/dump/dump.c
index 7ede5508cf8dd839b258951c0862281f5d46a83a..8c9637616a6cbce1f7679ea02f675b7200be81bd 100644 (file)
--- a/dump/dump.c
+++ b/dump/dump.c
@@ -90,6 +90,12 @@ static int exfat_show_ondisk_all_info(struct exfat_blk_dev *bd)
                goto free_ppbr;
        }
 
+       if (memcmp(ppbr->bpb.oem_name, "EXFAT   ", 8) != 0) {
+               exfat_err("Bad fs_name in boot sector, which does not describe a valid exfat filesystem\n");
+               ret = -EINVAL;
+               goto free_ppbr;
+       }
+
        pbsx = &ppbr->bsx;
 
        if (pbsx->sect_size_bits < EXFAT_MIN_SECT_SIZE_BITS ||
@@ -217,6 +223,7 @@ int main(int argc, char *argv[])
        bool version_only = false;
 
        init_user_input(&ui);
+       ui.writeable = false;
 
        if (!setlocale(LC_CTYPE, ""))
                exfat_err("failed to init locale/codeset\n");