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-rw-r--r--libbb/mtab.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/libbb/mtab.c b/libbb/mtab.c
index 528422567..b1f74c476 100644
--- a/libbb/mtab.c
+++ b/libbb/mtab.c
@@ -27,11 +27,12 @@
#include <mntent.h>
#include "libbb.h"
+#define MTAB_MAX_ENTRIES 40
static const int MS_RDONLY = 1; /* Mount read-only. */
void erase_mtab(const char *name)
{
- struct mntent entries[20];
+ struct mntent entries[MTAB_MAX_ENTRIES];
int count = 0;
FILE *mountTable = setmntent(bb_path_mtab_file, "r");
struct mntent *m;
@@ -44,7 +45,8 @@ void erase_mtab(const char *name)
return;
}
- while ((m = getmntent(mountTable)) != 0) {
+ while (((m = getmntent(mountTable)) != 0) && (count < MTAB_MAX_ENTRIES))
+ {
entries[count].mnt_fsname = strdup(m->mnt_fsname);
entries[count].mnt_dir = strdup(m->mnt_dir);
entries[count].mnt_type = strdup(m->mnt_type);