From 2126401d1ebbcaadc5779ca90de58b70c5504a15 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 27 Feb 2026 13:26:58 +0000
Subject: [PATCH 1/3] Initial plan


From a875b801e35eacd39cd1a249cc16ab35c3693b89 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 27 Feb 2026 13:29:14 +0000
Subject: [PATCH 2/3] Add static_assert to enforce MAX_DATA_LEN >=
 sizeof(ControlChannelPayload)

Co-authored-by: gabryelreyes <66941456+gabryelreyes@users.noreply.github.com>
---
 _codeql_detected_source_root |   1 +
 null.o                       | Bin 0 -> 928 bytes
 src/SerialMuxProtCommon.hpp  |   3 +++
 3 files changed, 4 insertions(+)
 create mode 120000 _codeql_detected_source_root
 create mode 100644 null.o

diff --git a/_codeql_detected_source_root b/_codeql_detected_source_root
new file mode 120000
index 0000000..945c9b4
--- /dev/null
+++ b/_codeql_detected_source_root
@@ -0,0 +1 @@
+.
\ No newline at end of file
diff --git a/null.o b/null.o
new file mode 100644
index 0000000000000000000000000000000000000000..de0706c7acdf16bb90e32ab494cfe17334318160
GIT binary patch
literal 928
zcmbVK%}T>S5T4X()sx-?FX>4IJET8)@E{AN_9EU2UXvOWY&Id;1$)s~@R54z`}hPp
zlVo+f0YL|5X1{Od+ucm|ZE}0l@;or+!8QCK!vgpgDN0(vKI{QZ$KxyibQWo;wBH}%
z5QE;OF5%#HFv4Jj{j<72x;FU%`8N6VZU!xY6?0qUzZoCjhL6uikJO6=02a$cg%M?y
zSNX}TRQ#d<A3_xZMnwTQPm?5;#K}~}NSEjpDx5#p_)%)i@-&NcwQL;rcjA~NeD@tk
zDjaN}HRh7)Qe@7Zk0`6n;ObAPWtaTF`g79qo&mXSq6TP_v^M9Pd|`2RtF(c&HabI1
zXwf03cd}twjr<L^`c|9b{ah{A-|HsxT|6W1<IHwcC4S+J*>P#bfz17{?)?v`$DKXv
N)*Q(0tMnaR{TFMrH<bVY

literal 0
HcmV?d00001

diff --git a/src/SerialMuxProtCommon.hpp b/src/SerialMuxProtCommon.hpp
index 5da9471..765d71a 100644
--- a/src/SerialMuxProtCommon.hpp
+++ b/src/SerialMuxProtCommon.hpp
@@ -186,5 +186,8 @@ typedef struct _ControlChannelPayload
     char     channelName[CHANNEL_NAME_MAX_LEN] = {0U}; /**< Channel Name */
 } __attribute__((packed)) ControlChannelPayload;       /**< ControlChannelPayload */
 
+static_assert(MAX_DATA_LEN >= sizeof(ControlChannelPayload),
+              "MAX_DATA_LEN must be >= sizeof(ControlChannelPayload) to avoid buffer overflows on control channel.");
+
 #endif /* SERIALMUXPROT_COMMON_H_ */
 /** @} */

From 2975a14fac1247f9a8f376bdd01851f15549fd10 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 27 Feb 2026 13:29:32 +0000
Subject: [PATCH 3/3] Remove accidentally committed build artifacts from
 tracking

Co-authored-by: gabryelreyes <66941456+gabryelreyes@users.noreply.github.com>
---
 .gitignore                   |   2 ++
 _codeql_detected_source_root |   1 -
 null.o                       | Bin 928 -> 0 bytes
 3 files changed, 2 insertions(+), 1 deletion(-)
 delete mode 120000 _codeql_detected_source_root
 delete mode 100644 null.o

diff --git a/.gitignore b/.gitignore
index b9f3806..db18c4e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 .pio
 .vscode
+null.o
+_codeql_detected_source_root
diff --git a/_codeql_detected_source_root b/_codeql_detected_source_root
deleted file mode 120000
index 945c9b4..0000000
--- a/_codeql_detected_source_root
+++ /dev/null
@@ -1 +0,0 @@
-.
\ No newline at end of file
diff --git a/null.o b/null.o
deleted file mode 100644
index de0706c7acdf16bb90e32ab494cfe17334318160..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 928
zcmbVK%}T>S5T4X()sx-?FX>4IJET8)@E{AN_9EU2UXvOWY&Id;1$)s~@R54z`}hPp
zlVo+f0YL|5X1{Od+ucm|ZE}0l@;or+!8QCK!vgpgDN0(vKI{QZ$KxyibQWo;wBH}%
z5QE;OF5%#HFv4Jj{j<72x;FU%`8N6VZU!xY6?0qUzZoCjhL6uikJO6=02a$cg%M?y
zSNX}TRQ#d<A3_xZMnwTQPm?5;#K}~}NSEjpDx5#p_)%)i@-&NcwQL;rcjA~NeD@tk
zDjaN}HRh7)Qe@7Zk0`6n;ObAPWtaTF`g79qo&mXSq6TP_v^M9Pd|`2RtF(c&HabI1
zXwf03cd}twjr<L^`c|9b{ah{A-|HsxT|6W1<IHwcC4S+J*>P#bfz17{?)?v`$DKXv
N)*Q(0tMnaR{TFMrH<bVY