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authorSebastian Rasmussen <sebras@gmail.com>2016-10-13 01:40:35 +0800
committerSebastian Rasmussen <sebras@gmail.com>2016-10-13 01:43:21 +0800
commita0aa734da4f56ff5d5690bc1229c63a2d712087a (patch)
treeb0c3a0e06a758f9327ca908024fcafb989b5d0dc /source
parentded36857c6ac60808909454a06e021fafe151f41 (diff)
downloadmupdf-a0aa734da4f56ff5d5690bc1229c63a2d712087a.tar.xz
crypt: Handle null pointer when dropping crypt object.
Exposed by weird-jpx.pdf from bug 696885.
Diffstat (limited to 'source')
-rw-r--r--source/pdf/pdf-crypt.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/source/pdf/pdf-crypt.c b/source/pdf/pdf-crypt.c
index b17c2a71..1499e39e 100644
--- a/source/pdf/pdf-crypt.c
+++ b/source/pdf/pdf-crypt.c
@@ -272,6 +272,9 @@ pdf_new_crypt(fz_context *ctx, pdf_obj *dict, pdf_obj *id)
void
pdf_drop_crypt(fz_context *ctx, pdf_crypt *crypt)
{
+ if (!crypt)
+ return;
+
pdf_drop_obj(ctx, crypt->id);
pdf_drop_obj(ctx, crypt->cf);
fz_free(ctx, crypt);