https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122491
Bug ID: 122491
Summary: [16 Regression] asan instrumented gcc:
heap-use-after-free in fortran/parse.cc:1861 while
running gfortran.dg/pr103508.f90
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Keywords: needs-bisection
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: pheeck at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Running gcc/testsuite/gfortran.dg/pr103508.f90 with
adress-sanitizer-intrumented GCC results in
==3367914==ERROR: AddressSanitizer: heap-use-after-free on address
0x7dbe75e14490 at pc 0x000000c49fa6 bp 0x7ffefabb3bf0 sp 0x7ffefabb3be8
READ of size 8 at 0x7dbe75e14490 thread T0
#0 0x000000c49fa5 in next_statement
/home/worker/buildworker/tiber-gcc-asan/build/gcc/fortran/parse.cc:1861
#1 0x000000c51731 in parse_executable
/home/worker/buildworker/tiber-gcc-asan/build/gcc/fortran/parse.cc:6819
#2 0x000000c55ec9 in parse_progunit
/home/worker/buildworker/tiber-gcc-asan/build/gcc/fortran/parse.cc:7092
#3 0x000000c51fad in parse_block_construct
/home/worker/buildworker/tiber-gcc-asan/build/gcc/fortran/parse.cc:5276
#4 0x000000c51fad in parse_executable
/home/worker/buildworker/tiber-gcc-asan/build/gcc/fortran/parse.cc:6700
#5 0x000000c55ec9 in parse_progunit
/home/worker/buildworker/tiber-gcc-asan/build/gcc/fortran/parse.cc:7092
#6 0x000000c57f17 in gfc_parse_file()
/home/worker/buildworker/tiber-gcc-asan/build/gcc/fortran/parse.cc:7618
#7 0x000000d78cb4 in gfc_be_parse_file
/home/worker/buildworker/tiber-gcc-asan/build/gcc/fortran/f95-lang.cc:247
#8 0x000002489be8 in compile_file
/home/worker/buildworker/tiber-gcc-asan/build/gcc/toplev.cc:453
This has started with the introduction of the test itself in
r16-4016-g5e6937b9ab4f75.
GCC configured with:
--enable-languages=default,jit,lto,go,d --enable-host-shared
--enable-checking=release --disable-multilib --with-build-config=bootstrap-asan
