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authorGary Benson <gbenson@redhat.com>2017-02-09 15:35:33 +0000
committerGary Benson <gbenson@redhat.com>2017-02-09 15:37:57 +0000
commitff6fa24786eb2c03c1af95e2559fa3fd0b2f3893 (patch)
treeab8489895f553017c95f4c1788c6e42b67ef68d2 /gdb/symtab.c
parent9d5c5dd77bf91cbeb0ddfd1346bddaee549f9fb3 (diff)
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Fix NULL pointer dereference
This commit fixes a segmentation fault on tab completion when certain debuginfo is installed: https://bugzilla.redhat.com/show_bug.cgi?id=1398387 gdb/ChangeLog: * symtab.c (add_symtab_completions): Prevent NULL pointer dereference.
Diffstat (limited to 'gdb/symtab.c')
-rw-r--r--gdb/symtab.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/gdb/symtab.c b/gdb/symtab.c
index 356f480..2c141e5 100644
--- a/gdb/symtab.c
+++ b/gdb/symtab.c
@@ -5163,6 +5163,9 @@ add_symtab_completions (struct compunit_symtab *cust,
struct block_iterator iter;
int i;
+ if (cust == NULL)
+ return;
+
for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++)
{
QUIT;