1880390 - Crash in [@ mozilla::ipc::SentinelReadError | IPC::ParamTraits<mozilla::ipc::StandardURLParams>::Read]

Status: RESOLVED WORKSFORME

(Core :: IPC, defect)

Description

[BugBot [:suhaib / :marco/ :calixte]]

Crash report: https://crash-stats.mozilla.org/report/index/1d0046a3-0ed3-43f2-946e-8b38e0240209

MOZ_CRASH Reason: incorrect sentinel when reading Error deserializing 'scheme' (StandardURLSegment) member of 'StandardURLParams'

Top 10 frames of crashing thread:

0  xul.dll  MOZ_Crash  mfbt/Assertions.h:301
0  xul.dll  mozilla::ipc::SentinelReadError  ipc/glue/ProtocolUtils.cpp:241
1  xul.dll  IPC::ParamTraits<mozilla::ipc::StandardURLParams>::Read  ipc/ipdl/URIParams.cpp:285
1  xul.dll  IPC::ReadParam  ipc/chromium/src/chrome/common/ipc_message_utils.h:478
1  xul.dll  IPC::ParamTraits<mozilla::ipc::URIParams>::Read  ipc/ipdl/URIParams.cpp:1503
2  xul.dll  IPC::ReadParam  ipc/chromium/src/chrome/common/ipc_message_utils.h:478
2  xul.dll  IPC::ParamTraits<mozilla::Maybe<mozilla::ipc::URIParams> >::Read  ipc/glue/IPCMessageUtilsSpecializations.h:462
2  xul.dll  IPC::ReadParam  ipc/chromium/src/chrome/common/ipc_message_utils.h:471
2  xul.dll  mozilla::ipc::ReadIPDLParam<mozilla::Maybe<mozilla::ipc::URIParams> >  ipc/glue/IPCMessageUtilsSpecializations.h:458
3  xul.dll  mozilla::ipc::IPDLParamTraits<nsIURI*>::Read  ipc/glue/URIUtils.h:38

By querying Nightly crashes reported within the last 2 months, here are some insights about the signature:

• First crash report: 2024-01-30
• Process type: Multiple distinct types
• Is startup crash: No
• Has user comments: Yes
• Is null crash: Yes - 1 out of 3 crashes happened on null or near null memory address

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::IPC' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Andrew McCreight [:mccr8]]

Two more crashes, also on Nightly:
bp-9712cfc0-5355-4035-bab9-b54a00240214
bp-ceae8ce2-0213-4a53-8e4d-e59e20240130

One talks about restarting.

Comment 3

[Nika Layzell [:nika] (ni? for response)]

This is a quite infrequent crash which may be caused by bad RAM based on the frequency of the crash. The code in question is doing fairly straightforward deserialization.

Comment 4

[BugBot [:suhaib / :marco/ :calixte]]

Closing because no crashes reported for 12 weeks.