From bff38efe8c110469c5080d387bec62a6ca15b1a5 Mon Sep 17 00:00:00 2001
From: obiwac <obiwac@gmail.com>
Date: Fri, 22 Jul 2022 22:41:10 +0200
Subject: [PATCH] libarchive: Handle a `calloc` returning NULL (fixes #1754)

---
 libarchive/archive_write.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libarchive/archive_write.c b/libarchive/archive_write.c
index 66592e82..27626b54 100644
--- a/libarchive/archive_write.c
+++ b/libarchive/archive_write.c
@@ -201,6 +201,10 @@ __archive_write_allocate_filter(struct archive *_a)
 	struct archive_write_filter *f;
 
 	f = calloc(1, sizeof(*f));
+
+	if (f == NULL)
+		return (NULL);
+
 	f->archive = _a;
 	f->state = ARCHIVE_WRITE_FILTER_STATE_NEW;
 	if (a->filter_first == NULL)
@@ -548,6 +552,10 @@ archive_write_open2(struct archive *_a, void *client_data,
 	a->client_data = client_data;
 
 	client_filter = __archive_write_allocate_filter(_a);
+
+	if (client_filter == NULL)
+		return (ARCHIVE_FATAL);
+
 	client_filter->open = archive_write_client_open;
 	client_filter->write = archive_write_client_write;
 	client_filter->close = archive_write_client_close;
