1863042 - Crash in [@ mozilla::Preferences::UnregisterCallbackImpl<T>]

Status: NEW

(Core :: Preferences: Backend, defect, P3)

Description

[Ryan VanderMeulen [:RyanVM]]

Crash report: https://crash-stats.mozilla.org/report/index/4d65a9c1-be85-4343-8415-4058c0231103

Reason: EXCEPTION_ACCESS_VIOLATION_READ

Top 10 frames of crashing thread:

0  xul.dll  mozilla::Preferences::UnregisterCallbackImpl<const nsTSubstring<char>&>  modules/libpref/Preferences.cpp:5531
1  xul.dll  mozilla::Preferences::UnregisterCallback  modules/libpref/Preferences.cpp:5556
1  xul.dll  nsPrefBranch::RemoveObserverImpl  modules/libpref/Preferences.cpp:2943
2  xul.dll  mozilla::Preferences::RemoveObserver  modules/libpref/Preferences.h:253
2  xul.dll  nsGlobalWindowInner::FreeInnerObjects  dom/base/nsGlobalWindowInner.cpp:1248
3  xul.dll  nsGlobalWindowOuter::SetNewDocument  dom/base/nsGlobalWindowOuter.cpp:2475
4  xul.dll  nsDocumentViewer::InitInternal  layout/base/nsDocumentViewer.cpp:896
5  xul.dll  nsDocumentViewer::Init  layout/base/nsDocumentViewer.cpp:675
6  xul.dll  nsDocShell::SetupNewViewer  docshell/base/nsDocShell.cpp:8185
6  xul.dll  nsDocShell::Embed  docshell/base/nsDocShell.cpp:5641

Comment 1

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

The severity field is not set for this bug.
:KrisWright, could you have a look please?

For more information, please visit BugBot documentation.

Comment 2

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

Redirect a needinfo that is pending on an inactive user to the triage owner.
:gstoll, since the bug doesn't have a severity set, could you please set the severity or close the bug?

For more information, please visit BugBot documentation.

Comment 3

[Greg Stoll :gstoll]

Relatively low crash rate and I don't see any indication this is security-sensitive.