NSInvalidArgumentException -[NSNull allKeys]: unrecognized selector sent to instance 0x1f005b678

[LeeyYun]

Platform

iOS

Environment

Production

Installed

CocoaPods

Version

8.41.0

Xcode Version

16.0

Did it work on previous versions?

No response

Steps to Reproduce

CoreFoundation
+0x02d5ec
<redacted>
libobjc.A
+0x031244
objc_exception_throw
CoreFoundation
+0x186174
<redacted>
CoreFoundation
+0x0305b8
<redacted>
CoreFoundation
+0x02fee0
_CF_forwarding_prep_0
appName
+0xd6ec14
sentry_sanitize (SentryNSDictionarySanitize.m:12)
In App
appName
+0xd1f4d4
-[SentryBreadcrumb serialize] (SentryBreadcrumb.m:77)
appName
+0xd52678
-[SentryEvent serializeBreadcrumbs] (SentryEvent.m:175)
appName
+0xd522c0
-[SentryEvent addSimpleProperties:] (SentryEvent.m:139)
appName
+0xd519a8
-[SentryEvent serialize] (SentryEvent.m:69)
appName
+0xd4f204
-[SentryEnvelopeItem initWithEvent:] (SentryEnvelope.m:72)
appName
+0xda1878
-[SentryTransportAdapter buildEnvelopeItems:attachments:] (SentryTransportAdapter.m:140)
appName
+0xda0f14
-[SentryTransportAdapter sendEvent:traceContext:attachments:additionalEnvelopeItems:] (SentryTransportAdapter.m:52)
appName
+0xd23b90
-[SentryClient sendEvent:withScope:alwaysAttachStacktrace:isCrashEvent:additionalEnvelopeItems:] (SentryClient.m:468)
appName
+0xd5f954
-[SentryHub captureEvent:withScope:additionalEnvelopeItems:] (SentryHub.m:325)
appName
+0xd86eac
+[SentrySDK captureEvent:withScope:] (SentrySDK.m:291)
appName
+0xd86d38
+[SentrySDK captureEvent:] (SentrySDK.m:279)
appName
+0xd19c08
-[SentryANRTrackingIntegration anrDetectedWithType:] (SentryANRTrackingIntegration.m:134)
appName
+0xd190fc
-[SentryANRTrackerV2 ANRDetected:] (SentryANRTrackerV2.m:204)
appName
+0xd18e1c
-[SentryANRTrackerV2 detectANRs] (SentryANRTrackerV2.m:176)
Foundation
+0x115a54
<redacted>
libsystem_pthread
+0x0017d0
_pthread_start
libsystem_pthread
+0x001480
thread_start

When the program starts, it detects ARN and is highly likely to encounter the aforementioned crash.

Expected Result

no crash

Actual Result

crash

Are you willing to submit a PR?

No response

[philprime]

Hi @LeeyYun, thanks for reporting this issue.

@philipphofmann it looks like an edgecase of sentry_sanitize(NSDictionary *_Nullable dictionary) where it isn't nil, but set to [NSNull null].

sentry-cocoa/Sources/Sentry/SentryNSDictionarySanitize.m

Lines 5 to 10 in c9bd4a5

	NSDictionary *_Nullable sentry_sanitize(NSDictionary *_Nullable dictionary)
	{
	if (dictionary == nil) {
	return nil;
	}

I would propose we add another null check in the method, but before that we might want to understand how that could even happen.

[philipphofmann]

@philprime, good catch. That could be the culprit. If you can reproduce this with a test, please open an PR.