Stream: git-cranelift

Topic: cranelift / Issue #1306 [panic] assert failed in cranelif...

view this post on Zulip GitHub (Dec 20 2019 at 22:21):

pventuzelo opened Issue #1306:

Issue description

During fuzzing of lightbeam, i found this crash that seems to be related to cranelift.

$ cargo +nightly fuzz run compile assert_failed_cranelift_entity.wasm
Running: assert_failed_cranelift_entity.wasm
thread '<unnamed>' panicked at 'assertion failed: x < ::cranelift_entity::__core::u32::MAX', /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/translation_utils.rs:18:1

Note: crash will not happen if you are calling wasmtime binary but only using compile API.
Also, the crash happen using both fuzzing strategy (i.e. cranelift or ligthbeam)

Reproduction

Download assert_failed_cranelift_entity.zip

Run the fuzzer:

$ cargo +nightly fuzz run compile assert_failed_cranelift_entity.wasm
Running: assert_failed_cranelift_entity.wasm
thread '<unnamed>' panicked at 'assertion failed: x < ::cranelift_entity::__core::u32::MAX', /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/translation_utils.rs:18:1

wasmtime commit: 086ff63e6b38efcb9a69379fb4e3f6ea3a622a9c

Crash details

Running: assert_failed_cranelift_entity.wasm
thread '<unnamed>' panicked at 'assertion failed: x < ::cranelift_entity::__core::u32::MAX', /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/translation_utils.rs:18:1
stack backtrace:
   0: backtrace::backtrace::libunwind::trace
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88
   1: backtrace::backtrace::trace_unsynchronized
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66
   2: std::sys_common::backtrace::_print_fmt
             at src/libstd/sys_common/backtrace.rs:77
   3: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt
             at src/libstd/sys_common/backtrace.rs:61
   4: core::fmt::write
             at src/libcore/fmt/mod.rs:1030
   5: std::io::Write::write_fmt
             at src/libstd/io/mod.rs:1412
   6: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:65
   7: std::sys_common::backtrace::print
             at src/libstd/sys_common/backtrace.rs:50
   8: std::panicking::default_hook::{{closure}}
             at src/libstd/panicking.rs:188
   9: std::panicking::default_hook
             at src/libstd/panicking.rs:205
  10: <alloc::boxed::Box<F> as core::ops::function::Fn<A>>::call
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/liballoc/boxed.rs:956
  11: libfuzzer_sys::initialize::{{closure}}
             at /XXX/.cargo/git/checkouts/libfuzzer-sys-e07fde05820d7bc6/0c45075/src/lib.rs:50
  12: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:468
  13: std::panicking::begin_panic
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libstd/panicking.rs:400
  14: cranelift_wasm::translation_utils::FuncIndex::from_u32
             at /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/<::cranelift_entity::entity_impl macros>:20
  15: cranelift_wasm::sections_translator::parse_function_name_subsection
             at /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/sections_translator.rs:419
  16: core::ops::function::FnOnce::call_once
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libcore/ops/function.rs:227
  17: core::option::Option<T>::and_then
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libcore/option.rs:657
  18: cranelift_wasm::sections_translator::parse_name_section
             at /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/sections_translator.rs:395
  19: cranelift_wasm::module_translator::translate_module
             at /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/module_translator.rs:83
  20: wasmtime_environ::module_environ::ModuleEnvironment::translate
             at crates/environ/src/module_environ.rs:83
  21: wasmtime_jit::instantiate::RawCompiledModule::new
             at crates/jit/src/instantiate.rs:68
  22: wasmtime_jit::instantiate::CompiledModule::new
             at crates/jit/src/instantiate.rs:159
  23: wasmtime_fuzzing::oracles::compile
             at crates/fuzzing/src/oracles.rs:84
  24: rust_fuzzer_test_input
             at fuzz/fuzz_targets/compile.rs:8
  25: libfuzzer_sys::test_input_wrap::{{closure}}
             at /XXX/.cargo/git/checkouts/libfuzzer-sys-e07fde05820d7bc6/0c45075/src/lib.rs:27
  26: std::panicking::try::do_call
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libstd/panicking.rs:287
  27: __rust_maybe_catch_panic
             at src/libpanic_unwind/lib.rs:79
  28: std::panicking::try
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libstd/panicking.rs:265
  29: std::panic::catch_unwind
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libstd/panic.rs:396
  30: LLVMFuzzerTestOneInput
             at /XXX/.cargo/git/checkouts/libfuzzer-sys-e07fde05820d7bc6/0c45075/src/lib.rs:25
  31: _ZN6fuzzer6Fuzzer15ExecuteCallbackEPKhm
             at libfuzzer/FuzzerLoop.cpp:553
  32: _ZN6fuzzer10RunOneTestEPNS_6FuzzerEPKcm
             at libfuzzer/FuzzerDriver.cpp:292
  33: _ZN6fuzzer12FuzzerDriverEPiPPPcPFiPKhmE
  34: main
             at libfuzzer/FuzzerMain.cpp:19
  35: __libc_start_main
  36: _start

view this post on Zulip GitHub (Dec 20 2019 at 22:39):

fitzgen commented on Issue #1306:

reduced test case:
min-issue-1306.zip

view this post on Zulip GitHub (Dec 20 2019 at 22:40):

fitzgen edited a comment on Issue #1306:

reduced test case:
min-issue-1306.zip

view this post on Zulip GitHub (Dec 20 2019 at 22:41):

fitzgen labeled Issue #1306:

Issue description

During fuzzing of lightbeam, i found this crash that seems to be related to cranelift.

$ cargo +nightly fuzz run compile assert_failed_cranelift_entity.wasm
Running: assert_failed_cranelift_entity.wasm
thread '<unnamed>' panicked at 'assertion failed: x < ::cranelift_entity::__core::u32::MAX', /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/translation_utils.rs:18:1

Note: crash will not happen if you are calling wasmtime binary but only using compile API.
Also, the crash happen using both fuzzing strategy (i.e. cranelift or ligthbeam)

Reproduction

Download assert_failed_cranelift_entity.zip

Run the fuzzer:

$ cargo +nightly fuzz run compile assert_failed_cranelift_entity.wasm
Running: assert_failed_cranelift_entity.wasm
thread '<unnamed>' panicked at 'assertion failed: x < ::cranelift_entity::__core::u32::MAX', /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/translation_utils.rs:18:1

wasmtime commit: 086ff63e6b38efcb9a69379fb4e3f6ea3a622a9c

Crash details

Running: assert_failed_cranelift_entity.wasm
thread '<unnamed>' panicked at 'assertion failed: x < ::cranelift_entity::__core::u32::MAX', /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/translation_utils.rs:18:1
stack backtrace:
   0: backtrace::backtrace::libunwind::trace
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88
   1: backtrace::backtrace::trace_unsynchronized
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66
   2: std::sys_common::backtrace::_print_fmt
             at src/libstd/sys_common/backtrace.rs:77
   3: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt
             at src/libstd/sys_common/backtrace.rs:61
   4: core::fmt::write
             at src/libcore/fmt/mod.rs:1030
   5: std::io::Write::write_fmt
             at src/libstd/io/mod.rs:1412
   6: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:65
   7: std::sys_common::backtrace::print
             at src/libstd/sys_common/backtrace.rs:50
   8: std::panicking::default_hook::{{closure}}
             at src/libstd/panicking.rs:188
   9: std::panicking::default_hook
             at src/libstd/panicking.rs:205
  10: <alloc::boxed::Box<F> as core::ops::function::Fn<A>>::call
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/liballoc/boxed.rs:956
  11: libfuzzer_sys::initialize::{{closure}}
             at /XXX/.cargo/git/checkouts/libfuzzer-sys-e07fde05820d7bc6/0c45075/src/lib.rs:50
  12: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:468
  13: std::panicking::begin_panic
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libstd/panicking.rs:400
  14: cranelift_wasm::translation_utils::FuncIndex::from_u32
             at /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/<::cranelift_entity::entity_impl macros>:20
  15: cranelift_wasm::sections_translator::parse_function_name_subsection
             at /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/sections_translator.rs:419
  16: core::ops::function::FnOnce::call_once
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libcore/ops/function.rs:227
  17: core::option::Option<T>::and_then
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libcore/option.rs:657
  18: cranelift_wasm::sections_translator::parse_name_section
             at /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/sections_translator.rs:395
  19: cranelift_wasm::module_translator::translate_module
             at /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/module_translator.rs:83
  20: wasmtime_environ::module_environ::ModuleEnvironment::translate
             at crates/environ/src/module_environ.rs:83
  21: wasmtime_jit::instantiate::RawCompiledModule::new
             at crates/jit/src/instantiate.rs:68
  22: wasmtime_jit::instantiate::CompiledModule::new
             at crates/jit/src/instantiate.rs:159
  23: wasmtime_fuzzing::oracles::compile
             at crates/fuzzing/src/oracles.rs:84
  24: rust_fuzzer_test_input
             at fuzz/fuzz_targets/compile.rs:8
  25: libfuzzer_sys::test_input_wrap::{{closure}}
             at /XXX/.cargo/git/checkouts/libfuzzer-sys-e07fde05820d7bc6/0c45075/src/lib.rs:27
  26: std::panicking::try::do_call
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libstd/panicking.rs:287
  27: __rust_maybe_catch_panic
             at src/libpanic_unwind/lib.rs:79
  28: std::panicking::try
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libstd/panicking.rs:265
  29: std::panic::catch_unwind
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libstd/panic.rs:396
  30: LLVMFuzzerTestOneInput
             at /XXX/.cargo/git/checkouts/libfuzzer-sys-e07fde05820d7bc6/0c45075/src/lib.rs:25
  31: _ZN6fuzzer6Fuzzer15ExecuteCallbackEPKhm
             at libfuzzer/FuzzerLoop.cpp:553
  32: _ZN6fuzzer10RunOneTestEPNS_6FuzzerEPKcm
             at libfuzzer/FuzzerDriver.cpp:292
  33: _ZN6fuzzer12FuzzerDriverEPiPPPcPFiPKhmE
  34: main
             at libfuzzer/FuzzerMain.cpp:19
  35: __libc_start_main
  36: _start

view this post on Zulip GitHub (Dec 21 2019 at 21:37):

abrown closed Issue #1306:

Issue description

During fuzzing of lightbeam, i found this crash that seems to be related to cranelift.

$ cargo +nightly fuzz run compile assert_failed_cranelift_entity.wasm
Running: assert_failed_cranelift_entity.wasm
thread '<unnamed>' panicked at 'assertion failed: x < ::cranelift_entity::__core::u32::MAX', /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/translation_utils.rs:18:1

Note: crash will not happen if you are calling wasmtime binary but only using compile API.
Also, the crash happen using both fuzzing strategy (i.e. cranelift or ligthbeam)

Reproduction

Download assert_failed_cranelift_entity.zip

Run the fuzzer:

$ cargo +nightly fuzz run compile assert_failed_cranelift_entity.wasm
Running: assert_failed_cranelift_entity.wasm
thread '<unnamed>' panicked at 'assertion failed: x < ::cranelift_entity::__core::u32::MAX', /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/translation_utils.rs:18:1

wasmtime commit: 086ff63e6b38efcb9a69379fb4e3f6ea3a622a9c

Crash details

Running: assert_failed_cranelift_entity.wasm
thread '<unnamed>' panicked at 'assertion failed: x < ::cranelift_entity::__core::u32::MAX', /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/translation_utils.rs:18:1
stack backtrace:
   0: backtrace::backtrace::libunwind::trace
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88
   1: backtrace::backtrace::trace_unsynchronized
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66
   2: std::sys_common::backtrace::_print_fmt
             at src/libstd/sys_common/backtrace.rs:77
   3: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt
             at src/libstd/sys_common/backtrace.rs:61
   4: core::fmt::write
             at src/libcore/fmt/mod.rs:1030
   5: std::io::Write::write_fmt
             at src/libstd/io/mod.rs:1412
   6: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:65
   7: std::sys_common::backtrace::print
             at src/libstd/sys_common/backtrace.rs:50
   8: std::panicking::default_hook::{{closure}}
             at src/libstd/panicking.rs:188
   9: std::panicking::default_hook
             at src/libstd/panicking.rs:205
  10: <alloc::boxed::Box<F> as core::ops::function::Fn<A>>::call
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/liballoc/boxed.rs:956
  11: libfuzzer_sys::initialize::{{closure}}
             at /XXX/.cargo/git/checkouts/libfuzzer-sys-e07fde05820d7bc6/0c45075/src/lib.rs:50
  12: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:468
  13: std::panicking::begin_panic
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libstd/panicking.rs:400
  14: cranelift_wasm::translation_utils::FuncIndex::from_u32
             at /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/<::cranelift_entity::entity_impl macros>:20
  15: cranelift_wasm::sections_translator::parse_function_name_subsection
             at /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/sections_translator.rs:419
  16: core::ops::function::FnOnce::call_once
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libcore/ops/function.rs:227
  17: core::option::Option<T>::and_then
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libcore/option.rs:657
  18: cranelift_wasm::sections_translator::parse_name_section
             at /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/sections_translator.rs:395
  19: cranelift_wasm::module_translator::translate_module
             at /XXX/.cargo/registry/src/github.com-1ecc6299db9ec823/cranelift-wasm-0.50.0/src/module_translator.rs:83
  20: wasmtime_environ::module_environ::ModuleEnvironment::translate
             at crates/environ/src/module_environ.rs:83
  21: wasmtime_jit::instantiate::RawCompiledModule::new
             at crates/jit/src/instantiate.rs:68
  22: wasmtime_jit::instantiate::CompiledModule::new
             at crates/jit/src/instantiate.rs:159
  23: wasmtime_fuzzing::oracles::compile
             at crates/fuzzing/src/oracles.rs:84
  24: rust_fuzzer_test_input
             at fuzz/fuzz_targets/compile.rs:8
  25: libfuzzer_sys::test_input_wrap::{{closure}}
             at /XXX/.cargo/git/checkouts/libfuzzer-sys-e07fde05820d7bc6/0c45075/src/lib.rs:27
  26: std::panicking::try::do_call
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libstd/panicking.rs:287
  27: __rust_maybe_catch_panic
             at src/libpanic_unwind/lib.rs:79
  28: std::panicking::try
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libstd/panicking.rs:265
  29: std::panic::catch_unwind
             at /rustc/4f03f4a989d1c8346c19dfb417a77c09b34408b8/src/libstd/panic.rs:396
  30: LLVMFuzzerTestOneInput
             at /XXX/.cargo/git/checkouts/libfuzzer-sys-e07fde05820d7bc6/0c45075/src/lib.rs:25
  31: _ZN6fuzzer6Fuzzer15ExecuteCallbackEPKhm
             at libfuzzer/FuzzerLoop.cpp:553
  32: _ZN6fuzzer10RunOneTestEPNS_6FuzzerEPKcm
             at libfuzzer/FuzzerDriver.cpp:292
  33: _ZN6fuzzer12FuzzerDriverEPiPPPcPFiPKhmE
  34: main
             at libfuzzer/FuzzerMain.cpp:19
  35: __libc_start_main
  36: _start

Last updated: Nov 22 2024 at 17:03 UTC