From 3bb527e14fbc202af920ca63e43021344974f4e7 Mon Sep 17 00:00:00 2001
From: Stephan Bosch <stephan.bosch@open-xchange.com>
Date: Fri, 26 Mar 2021 00:18:37 +0100
Subject: [PATCH] lib-sieve: plugins: include: ext-include-binary - Properly
check whether binary dependency block load succeeded.
Otherwise, a segfault may occur on a corrupt binary.
---
src/lib-sieve/plugins/include/ext-include-binary.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/lib-sieve/plugins/include/ext-include-binary.c b/src/lib-sieve/plugins/include/ext-include-binary.c
index 3711c30ff..11c1faaf8 100644
--- a/src/lib-sieve/plugins/include/ext-include-binary.c
+++ b/src/lib-sieve/plugins/include/ext-include-binary.c
@@ -252,6 +252,12 @@ static bool ext_include_binary_open
sieve_size_t offset;
sblock = sieve_binary_extension_get_block(sbin, ext);
+ if (sblock == NULL) {
+ e_error(svinst->event,
+ "include: failed to load dependency block of binary %s",
+ sieve_binary_path(sbin));
+ return FALSE;
+ }
block_id = sieve_binary_block_get_id(sblock);
offset = 0;
--
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