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-rw-r--r--nis/nss_nisplus/nisplus-publickey.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/nis/nss_nisplus/nisplus-publickey.c b/nis/nss_nisplus/nisplus-publickey.c
index fe269b2c48..f6b32f8827 100644
--- a/nis/nss_nisplus/nisplus-publickey.c
+++ b/nis/nss_nisplus/nisplus-publickey.c
@@ -226,8 +226,12 @@ parse_grp_str (const char *s, gid_t *gidp, int *gidlenp, gid_t *gidlist,
gidlen = 0;
/* After strtoul() ep should point to the marker ',', which means
- here starts a new value. */
- while (ep != NULL && *ep == ',')
+ here starts a new value.
+
+ The Sun man pages show that GIDLIST should contain at least NGRPS
+ elements. Limiting the number written by this value is the best
+ we can do. */
+ while (ep != NULL && *ep == ',' && gidlen < NGRPS)
{
ep++;
s = ep;