File 068714f9f5a96fbd94560211cec75775ee023d02.patch of Package rspamd

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File 068714f9f5a96fbd94560211cec75775ee023d02.patch of Package rspamd (Revision ee3fd14601e80aec697ce8d8ae4bd081)

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From 068714f9f5a96fbd94560211cec75775ee023d02 Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@rspamd.com>
Date: Fri, 11 Nov 2022 20:34:51 +0000
Subject: [PATCH] [CritFix] Deserialise hyperscan to the page-aligned space to
 prevent alignment issues

Issue: #4329
---
 src/libserver/hyperscan_tools.cxx | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/libserver/hyperscan_tools.cxx b/src/libserver/hyperscan_tools.cxx
index 6187208a9..96366067d 100644
--- a/src/libserver/hyperscan_tools.cxx
+++ b/src/libserver/hyperscan_tools.cxx
@@ -306,7 +306,15 @@ auto load_cached_hs_file(const char *fname, std::int64_t offset = 0) -> tl::expe
 						msg_debug_hyperscan_lambda("multipattern: create new database in %s; %Hz size",
 							tmpfile_pattern.data(), unserialized_size);
 						void *buf;
-						posix_memalign(&buf, 16, unserialized_size);
+#ifdef HAVE_GETPAGESIZE
+						auto page_size = getpagesize();
+#else
+						auto page_size = sysconf(_SC_PAGESIZE);
+#endif
+						if (page_size == -1) {
+							page_size = 4096;
+						}
+						posix_memalign(&buf, page_size, unserialized_size);
 						if (buf == nullptr) {
 							return tl::make_unexpected(error {"Cannot allocate memory", errno, error_category::CRITICAL });
 						}

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File 068714f9f5a96fbd94560211cec75775ee023d02.patch of Package rspamd (Revision ee3fd14601e80aec697ce8d8ae4bd081)

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