spdlog: patch CVE-2025-6140

Pick commit [1] mentioned in [2] as listed in [3].

[1] https://github.com/gabime/spdlog/commit/10320184df1eb4638e253a34b1eb44ce78954094
[2] https://github.com/gabime/spdlog/issues/3360
[3] https://nvd.nist.gov/vuln/detail/CVE-2025-6140

Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

2 files changed, 38 insertions, 1 deletions

diff --git a/meta-oe/recipes-support/spdlog/spdlog/CVE-2025-6140.patch b/meta-oe/recipes-support/spdlog/spdlog/CVE-2025-6140.patch
new file mode 100644
index 0000000000..01e4558ff2
--- /dev/null
+++ b/meta-oe/recipes-support/spdlog/spdlog/CVE-2025-6140.patch
@@ -0,0 +1,35 @@
+From 10320184df1eb4638e253a34b1eb44ce78954094 Mon Sep 17 00:00:00 2001
+From: Gabi Melman <gmelman1@gmail.com>
+Date: Mon, 17 Mar 2025 15:46:31 +0200
+Subject: [PATCH] Fixed issue #3360 (#3361)
+
+CVE: CVE-2025-6140
+Upstream-Status: Backport [https://github.com/gabime/spdlog/commit/10320184df1eb4638e253a34b1eb44ce78954094]
+Signed-off-by: Peter Marko <peter.marko@siemens.com>
+---
+ include/spdlog/pattern_formatter-inl.h | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/include/spdlog/pattern_formatter-inl.h b/include/spdlog/pattern_formatter-inl.h
+index b53d8051..fd408ed5 100644
+--- a/include/spdlog/pattern_formatter-inl.h
++++ b/include/spdlog/pattern_formatter-inl.h
+@@ -76,6 +76,9 @@ public:
+         else if (padinfo_.truncate_)
+         {
+             long new_size = static_cast<long>(dest_.size()) + remaining_pad_;
++            if (new_size < 0) {
++                new_size = 0;
++            }
+             dest_.resize(static_cast<size_t>(new_size));
+         }
+     }
+@@ -303,7 +306,7 @@ public:
+ 
+     void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
+     {
+-        const size_t field_size = 10;
++        const size_t field_size = 8;
+         ScopedPadder p(field_size, padinfo_, dest);
+ 
+         fmt_helper::pad2(tm_time.tm_mon + 1, dest);
diff --git a/meta-oe/recipes-support/spdlog/spdlog_1.9.2.bb b/meta-oe/recipes-support/spdlog/spdlog_1.9.2.bb
index 6362fc7a4b..4110ba8a11 100644
--- a/meta-oe/recipes-support/spdlog/spdlog_1.9.2.bb
+++ b/meta-oe/recipes-support/spdlog/spdlog_1.9.2.bb
@@ -5,7 +5,9 @@ LIC_FILES_CHKSUM = "file://${COREBASE}/meta/files/common-licenses/MIT;md5=0835ad
 
 SRCREV = "eb3220622e73a4889eee355ffa37972b3cac3df5"
 SRC_URI = "git://github.com/gabime/spdlog.git;protocol=https;branch=v1.x; \
-           file://0001-Enable-use-of-external-fmt-library.patch"
+           file://0001-Enable-use-of-external-fmt-library.patch \
+           file://CVE-2025-6140.patch \
+"
 
 DEPENDS += "fmt"