From 8df1f091f86812fb9101b8b86752fc72cb8fe575 Mon Sep 17 00:00:00 2001
From: Dhiogo Brustolin <dhiogorb@gmail.com>
Date: Wed, 2 Nov 2022 11:06:23 +0100
Subject: [PATCH 1/3] Update SentryCrashJSONCodec.c

---
 Sources/SentryCrash/Recording/Tools/SentryCrashJSONCodec.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Sources/SentryCrash/Recording/Tools/SentryCrashJSONCodec.c b/Sources/SentryCrash/Recording/Tools/SentryCrashJSONCodec.c
index ab5e488cc78..d2f231cefd5 100644
--- a/Sources/SentryCrash/Recording/Tools/SentryCrashJSONCodec.c
+++ b/Sources/SentryCrash/Recording/Tools/SentryCrashJSONCodec.c
@@ -30,6 +30,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <inttypes.h>
+#include <math.h>
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
@@ -311,6 +312,10 @@ int
 sentrycrashjson_addFloatingPointElement(
     SentryCrashJSONEncodeContext *const context, const char *const name, double value)
 {
+    if (isnan(value)) {
+        return sentrycrashjson_addNullElement(context, name);
+    }
+
     int result = sentrycrashjson_beginElement(context, name);
     unlikely_if(result != SentryCrashJSON_OK) { return result; }
     char buff[50];

From d23d1b3db51400447185fdde4dc1bbc7bceaca17 Mon Sep 17 00:00:00 2001
From: Dhiogo Brustolin <dhiogorb@gmail.com>
Date: Wed, 2 Nov 2022 11:24:03 +0100
Subject: [PATCH 2/3] Update SentryCrashJSONCodec_Tests.m

---
 .../SentryCrash/SentryCrashJSONCodec_Tests.m  | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/Tests/SentryTests/SentryCrash/SentryCrashJSONCodec_Tests.m b/Tests/SentryTests/SentryCrash/SentryCrashJSONCodec_Tests.m
index aebf3439eae..838f4001d9e 100644
--- a/Tests/SentryTests/SentryCrash/SentryCrashJSONCodec_Tests.m
+++ b/Tests/SentryTests/SentryCrash/SentryCrashJSONCodec_Tests.m
@@ -25,6 +25,7 @@
 //
 
 #import <XCTest/XCTest.h>
+#import <math.h>
 
 #import "FileBasedTestCase.h"
 #import "SentryCrashJSONCodec.h"
@@ -798,6 +799,24 @@ - (void)testSerializeDeserializeFloat
         [[result objectAtIndex:0] floatValue] == [[original objectAtIndex:0] floatValue], @"");
 }
 
+- (void)testSerializeDeserializeNanFloat
+{
+    NSError *error = (NSError *)self;
+    NSString *expected = @"[null]";
+    float nanValue = nanf("");
+    id original = [NSArray arrayWithObjects:[NSNumber numberWithFloat:nanValue], nil];
+    NSString *jsonString = toString([SentryCrashJSONCodec encode:original
+                                                         options:SentryCrashJSONEncodeOptionSorted
+                                                           error:&error]);
+    XCTAssertNotNil(jsonString, @"");
+    XCTAssertNil(error, @"");
+    XCTAssertEqualObjects(jsonString, expected, @"");
+    id result = [SentryCrashJSONCodec decode:toData(jsonString) options:0 error:&error];
+    XCTAssertNotNil(result, @"");
+    XCTAssertNil(error, @"");
+    XCTAssertTrue([[result objectAtIndex:0] isKindOfClass:[NSNull class]]);
+}
+
 - (void)testSerializeDeserializeDouble
 {
     NSError *error = (NSError *)self;
@@ -816,6 +835,25 @@ - (void)testSerializeDeserializeDouble
         [[result objectAtIndex:0] floatValue] == [[original objectAtIndex:0] floatValue], @"");
 }
 
+- (void)testSerializeDeserializeNANDouble
+{
+    NSError *error = (NSError *)self;
+    NSString *expected = @"[null]";
+    double nanValue = nan("");
+    id original = [NSArray arrayWithObjects:[NSNumber numberWithDouble:nanValue], nil];
+
+    NSString *jsonString = toString([SentryCrashJSONCodec encode:original
+                                                         options:SentryCrashJSONEncodeOptionSorted
+                                                           error:&error]);
+    XCTAssertNotNil(jsonString, @"");
+    XCTAssertNil(error, @"");
+    XCTAssertEqualObjects(jsonString, expected, @"");
+    id result = [SentryCrashJSONCodec decode:toData(jsonString) options:0 error:&error];
+    XCTAssertNotNil(result, @"");
+    XCTAssertNil(error, @"");
+    XCTAssertTrue([[result objectAtIndex:0] isKindOfClass:[NSNull class]]);
+}
+
 - (void)testSerializeDeserializeChar
 {
     NSError *error = (NSError *)self;

From c0065e53926afb3688f5cec5b410b9ceabc556f7 Mon Sep 17 00:00:00 2001
From: Dhiogo Brustolin <dhiogorb@gmail.com>
Date: Wed, 2 Nov 2022 11:26:16 +0100
Subject: [PATCH 3/3] Update CHANGELOG.md

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1c593980c56..fb081340f9d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@
 
 - Stop profiler when app moves to background (#2331)
 - Clean up old envelopes (#2322)
+- SentryCrash writing nan for invalid number (#2348)
 
 ## 7.29.0