[Crash-utility] [PATCH v4 3/4] Set name_hash_next field to be NULL for the newly installed elements
The newly installed element may contain junk data in the name_hash_next
field. If it does, it will corrupt the hash table. Thus name_hash_next
field should be set to NULL when the element is installed successfully
into the hash table.
Signed-off-by: Tao Liu <ltao(a)redhat.com>
Reviewed-by: Philipp Rudo <prudo(a)redhat.com>
---
symbols.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/symbols.c b/symbols.c
index 7ab47f2..f7157b1 100644
--- a/symbols.c
+++ b/symbols.c
@@ -1164,6 +1164,7 @@ symname_hash_install(struct syment *table[], struct syment *spn)
if ((sp = table[index]) == NULL) {
table[index] = spn;
+ spn->name_hash_next = NULL;
} else {
while (sp) {
if (STREQ(sp->name, spn->name)) {
@@ -1174,6 +1175,7 @@ symname_hash_install(struct syment *table[], struct syment *spn)
sp = sp->name_hash_next;
else {
sp->name_hash_next = spn;
+ spn->name_hash_next = NULL;
break;
}
}
--
2.29.2