https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106915
Bug ID: 106915
Summary: ICE/segfault during parsing with modules and invalid
code in malloc
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Keywords: ice-on-invalid-code
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: burnus at gcc dot gnu.org
Target Milestone: ---
Created attachment 53564
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53564&action=edit
Testcase
the following code ICEs either in variant (A) with:
corrupted size vs. prev_size
...
0x7f18078ba08f ???
/build/glibc-SzIz7B/glibc-2.31/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x7f180790ca63 malloc_consolidate
/build/glibc-SzIz7B/glibc-2.31/malloc/malloc.c:4492
0x7f180790ec82 _int_malloc
Or in Variant (B) with:
Error: Expecting END MODULE statement at (1)
malloc(): mismatching next->prev_size (unsorted)
malloc(): mismatching next->prev_size (unsorted)
gfortran: internal compiler error: Aborted signal terminated program f951
The second variant seems to work also without -fopenmp, even though it has
'USE omp_lib'.
