Crash in MutationObserverWrapper::ParentChainChanged(nsIContent*)

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Component
firefox
Last affected version
0:149.0.2-1.fc42
Executable
/usr/lib64/firefox/firefox
Error name
SIGSEGV 11
First occurrence
2026-10-01
Last occurrence
2026-10-01
Unique reports
1
Quality
-42

Statistics

Operating system Unique / Total count
Fedora 42 1 / 1
Operating system Count
Fedora 42 1
Architecture Count
x86_64 1
Related packages Count
firefox 1
 0:149.0.2-1.fc42 1

Packages names with count less than the total count of reports are most probably not the cause of the problem.

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Backtrace

Frame # Function Binary Source or offset Line
1
MutationObserverWrapper::ParentChainChanged(nsIContent*)
/usr/lib64/firefox/libxul.so 0x3a2b722
Build id: 235b9a103625e93a98beeb768fe6c8e2a64f0e2a 		-
2
mozilla::dom::Element::UnbindFromTree(mozilla::dom::UnbindContext&)
/usr/lib64/firefox/libxul.so 0x3314a66
Build id: 235b9a103625e93a98beeb768fe6c8e2a64f0e2a 		-
3
nsGenericHTMLFormElement::UnbindFromTree(mozilla::dom::UnbindContext&)
/usr/lib64/firefox/libxul.so 0x396789d
Build id: 235b9a103625e93a98beeb768fe6c8e2a64f0e2a 		-
4
mozilla::dom::HTMLElement::UnbindFromTree(mozilla::dom::UnbindContext&)
/usr/lib64/firefox/libxul.so 0x3967cbd
Build id: 235b9a103625e93a98beeb768fe6c8e2a64f0e2a 		-
5
ContentUnbinder::UnbindSubtree(nsIContent*)
/usr/lib64/firefox/libxul.so 0x357c00d
Build id: 235b9a103625e93a98beeb768fe6c8e2a64f0e2a 		-
6
ContentUnbinder::UnbindSubtree(nsIContent*)
/usr/lib64/firefox/libxul.so 0x357d310
Build id: 235b9a103625e93a98beeb768fe6c8e2a64f0e2a 		-
7
ContentUnbinder::Run()
/usr/lib64/firefox/libxul.so 0x3ce5521
Build id: 235b9a103625e93a98beeb768fe6c8e2a64f0e2a 		-
8
mozilla::TaskController::DoExecuteNextTaskOnlyMainThreadInternal(mozilla::detail::BaseAutoLock<mozilla::Mutex&> const&)
/usr/lib64/firefox/libxul.so 0x31f833c
Build id: 235b9a103625e93a98beeb768fe6c8e2a64f0e2a 		-
9
mozilla::TaskController::ProcessPendingMTTask(bool)
/usr/lib64/firefox/libxul.so 0x31f7f4a
Build id: 235b9a103625e93a98beeb768fe6c8e2a64f0e2a 		-
10
nsThread::ProcessNextEvent(bool, bool*)
/usr/lib64/firefox/libxul.so 0x2fabf48
Build id: 235b9a103625e93a98beeb768fe6c8e2a64f0e2a 		-
11
mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*)
/usr/lib64/firefox/libxul.so 0x32af6b2
Build id: 235b9a103625e93a98beeb768fe6c8e2a64f0e2a 		-
12
MessageLoop::Run()
/usr/lib64/firefox/libxul.so 0x35ff973
Build id: 235b9a103625e93a98beeb768fe6c8e2a64f0e2a 		-
13
nsBaseAppShell::Run()
/usr/lib64/firefox/libxul.so 0x38b377d
Build id: 235b9a103625e93a98beeb768fe6c8e2a64f0e2a 		-
14
nsAppShell::Run()
/usr/lib64/firefox/libxul.so 0x38b26c4
Build id: 235b9a103625e93a98beeb768fe6c8e2a64f0e2a 		-
15
mozilla::ipc::MessagePumpForChildProcess::Run(base::MessagePump::Delegate*)
/usr/lib64/firefox/libxul.so 0xc9ce78
Build id: 235b9a103625e93a98beeb768fe6c8e2a64f0e2a 		-
16
MessageLoop::Run()
/usr/lib64/firefox/libxul.so 0x35ff973
Build id: 235b9a103625e93a98beeb768fe6c8e2a64f0e2a 		-
17
XRE_InitChildProcess(int, char**, XREChildData const*)
/usr/lib64/firefox/libxul.so 0x2abc430
Build id: 235b9a103625e93a98beeb768fe6c8e2a64f0e2a 		-
18
main
/usr/lib64/firefox/firefox 0x3ea83
Build id: c21c20fc9227979b4cb34d193d02f18e3c53591f 		-
19
__libc_start_call_main
/lib64/libc.so.6 0x3575
Build id: 92b5376d35bb29c098175948cf3e7cbcae3aeae1 		-
20
__libc_start_main@@GLIBC_2.34
/lib64/libc.so.6 0x3628
Build id: 92b5376d35bb29c098175948cf3e7cbcae3aeae1 		-
21
_start
/usr/lib64/firefox/firefox 0x3c275
Build id: c21c20fc9227979b4cb34d193d02f18e3c53591f 		-