Crash report
What happened?
Minimal reproducer
async def t():
async with h,t,t,o,f,y,o,t,r,o,f,t,f,r,t,m,r,o,t,l:n
~/p/cpython ❯❯❯ ./python.exe -c 'async def t():
async with h,t,t,o,f,y,o,t,r,o,f,t,f,r,t,m,r,o,t,l:n'
Assertion failed: (stack->depth <= CO_MAXBLOCKS), function push_except_block, file flowgraph.c, line 707.
fish: Job 1, './python.exe -c 'async def t():' terminated by signal async with h,t,t,o,f,y,o,t,r,o… (SIGABRT)
fish: Job Abort, '' terminated by signal ()Full ASAN:
fuzz_pycompile: Python/flowgraph.c:701: basicblock *push_except_block(struct _PyCfgExceptStack *, cfg_instr *): Assertion `stack->depth <= CO_MAXBLOCKS' failed.
--
| AddressSanitizer:DEADLYSIGNAL
| =================================================================
| ==16858==ERROR: AddressSanitizer: ABRT on unknown address 0x0539000041da (pc 0x7a22fe4c600b bp 0x7a22fe63b588 sp 0x7ffe3dd3ff40 T0)
| SCARINESS: 10 (signal)
| #0 0x7a22fe4c600b in raise /build/glibc-SzIz7B/glibc-2.31/sysdeps/unix/sysv/linux/raise.c:51:1
| #1 0x7a22fe4a5858 in abort /build/glibc-SzIz7B/glibc-2.31/stdlib/abort.c:79:7
| #2 0x7a22fe4a5728 in __assert_fail_base /build/glibc-SzIz7B/glibc-2.31/assert/assert.c:92:3
| #3 0x7a22fe4b6fd5 in __assert_fail /build/glibc-SzIz7B/glibc-2.31/assert/assert.c:101:3
| #4 0x8f5084 in push_except_block cpython3/Python/flowgraph.c:701:5
| #5 0x8f5084 in label_exception_targets cpython3/Python/flowgraph.c:896:27
| #6 0x8e5db6 in _PyCfg_OptimizeCodeUnit cpython3/Python/flowgraph.c:2490:5
| #7 0x8702e3 in optimize_and_assemble_code_unit cpython3/Python/compile.c:7598:9
| #8 0x8702e3 in optimize_and_assemble cpython3/Python/compile.c:7640:12
| #9 0x8948d7 in compiler_function_body cpython3/Python/compile.c:2309:24
| #10 0x8948d7 in compiler_function cpython3/Python/compile.c:2410:9
| #11 0x8770af in compiler_visit_stmt cpython3/Python/compile.c:0
| #12 0x874f14 in compiler_body cpython3/Python/compile.c:1729:9
| #13 0x86c2fc in compiler_codegen cpython3/Python/compile.c:1740:13
| #14 0x869346 in compiler_mod cpython3/Python/compile.c:1781:9
| #15 0x869346 in _PyAST_Compile cpython3/Python/compile.c:555:24
| #16 0x9f3d07 in Py_CompileStringObject cpython3/Python/pythonrun.c:1449:10
| #17 0x9f3dfc in Py_CompileStringExFlags cpython3/Python/pythonrun.c:1462:10
| #18 0x4f8fcc in fuzz_pycompile cpython3/Modules/_xxtestfuzz/fuzzer.c:551:24
| #19 0x4f8fcc in _run_fuzz cpython3/Modules/_xxtestfuzz/fuzzer.c:570:14
| #20 0x4f8fcc in LLVMFuzzerTestOneInput cpython3/Modules/_xxtestfuzz/fuzzer.c:711:11
| #21 0x4f99ed in ExecuteFilesOnyByOne /src/aflplusplus/utils/aflpp_driver/aflpp_driver.c:255:7
| #22 0x4f97e8 in LLVMFuzzerRunDriver /src/aflplusplus/utils/aflpp_driver/aflpp_driver.c:0
| #23 0x4f939d in main /src/aflplusplus/utils/aflpp_driver/aflpp_driver.c:311:10
| #24 0x7a22fe4a7082 in __libc_start_main /build/glibc-SzIz7B/glibc-2.31/csu/libc-start.c:308:16
| #25 0x43a0ad in _start
cc: @iritkatriel
CPython versions tested on:
CPython main branch
Operating systems tested on:
No response
Output from running 'python -VV' on the command line:
No response
Linked PRs
Crash report
What happened?
Minimal reproducer
Full ASAN:
cc: @iritkatriel
CPython versions tested on:
CPython main branch
Operating systems tested on:
No response
Output from running 'python -VV' on the command line:
No response
Linked PRs