Crash in js::jit::PruneUnusedBranches(js::jit::MIRGenerator const*, js::jit::MIRGraph&) [clone .cold]

Similar reports
Problem #637379
Component
firefox
Last affected version
0:143.0-1.fc42
Executable
/usr/lib64/firefox/firefox
Error name
SIGSEGV 11
First occurrence
2025-09-23
Last occurrence
2026-08-25
Unique reports
6
Quality
-18

Statistics

Operating system Unique / Total count
Fedora 42 6 / 7
Operating system Count
Fedora 42 7
Architecture Count
x86_64 7
Related packages Count
firefox 7
 0:143.0-1.fc42 7

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
js::jit::PruneUnusedBranches(js::jit::MIRGenerator const*, js::jit::MIRGraph&) [clone .cold]
/usr/lib64/firefox/libxul.so 0x1cb816
Build id: 79e723746f9b6e8dcdba460643654c4bc0021ab6 		-
2
js::jit::OptimizeMIR(js::jit::MIRGenerator*)
/usr/lib64/firefox/libxul.so 0x303da2c
Build id: 79e723746f9b6e8dcdba460643654c4bc0021ab6 		-
3
js::jit::CompileBackEnd(js::jit::MIRGenerator*, js::jit::WarpSnapshot*)
/usr/lib64/firefox/libxul.so 0x302ef5a
Build id: 79e723746f9b6e8dcdba460643654c4bc0021ab6 		-
4
js::jit::IonCompileTask::runHelperThreadTask(js::AutoLockHelperThreadState&)
/usr/lib64/firefox/libxul.so 0x36099f0
Build id: 79e723746f9b6e8dcdba460643654c4bc0021ab6 		-
5
mozilla::ThreadFuncPoolThread(void*)
/usr/lib64/firefox/libxul.so 0x356496a
Build id: 79e723746f9b6e8dcdba460643654c4bc0021ab6 		-
6
_pt_root
/lib64/libnspr4.so 0x22e03
Build id: 65a32d0fa61acecd186c144846dab9b51540c607 		-
7
set_alt_signal_stack_and_start(PthreadCreateParams*)
/usr/lib64/firefox/firefox 0x418e2
Build id: 3ffbe98420b8527398ef4192bbb4e7f996598395 		-
8
start_thread
/lib64/libc.so.6 0x71f54
Build id: 48c4b9b1efb1df15da8e787f489128bf31893317 		-
9
__clone
/lib64/libc.so.6 0xf5154
Build id: 48c4b9b1efb1df15da8e787f489128bf31893317 		-