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* [Bug fortran/104999] New: [12 Regression] runtime error: pointer index expression with base 0x00000cf67720 overflowed to 0xffffffffea627728
@ 2022-03-21 14:14 marxin at gcc dot gnu.org
2022-03-21 14:59 ` [Bug fortran/104999] " rguenth at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: marxin at gcc dot gnu.org @ 2022-03-21 14:14 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104999
Bug ID: 104999
Summary: [12 Regression] runtime error: pointer index
expression with base 0x00000cf67720 overflowed to
0xffffffffea627728
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
Blocks: 63426
Target Milestone: ---
Happens for gfortran.dg/simplify_cshift_1.f90 test-case:
Reduced to:
$ cat c.f90
program foo
type t
end type t
integer, parameter :: a(5) = [1, 2, 3, 4, 5]
integer i, b(5), c(5), v(5)
if (any(b /= v)) STOP 1
b = cshift(a, 2)
end program foo
$ ./xgcc -B. c.f90 -c
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/fortran/simplify.cc:2239:12:
runtime error: pointer index expression with base 0x00000cf01270 overflowed to
0xffffffffea5c1278
#0 0xd4c8cd in gfc_simplify_cshift(gfc_expr*, gfc_expr*, gfc_expr*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/fortran/simplify.cc:2239
#1 0xb41c2d in do_simplify
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/fortran/intrinsic.cc:4676
#2 0xb5513e in gfc_intrinsic_func_interface(gfc_expr*, int)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/fortran/intrinsic.cc:5055
#3 0xcd35fa in resolve_unknown_f
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/fortran/resolve.cc:2978
#4 0xcd35fa in resolve_function
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/fortran/resolve.cc:3335
#5 0xcd35fa in gfc_resolve_expr(gfc_expr*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/fortran/resolve.cc:7175
#6 0xcd35fa in gfc_resolve_expr(gfc_expr*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/fortran/resolve.cc:7137
#7 0xd05c2d in gfc_resolve_code(gfc_code*, gfc_namespace*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/fortran/resolve.cc:11937
#8 0xd1d868 in resolve_codes
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/fortran/resolve.cc:17551
#9 0xca8648 in gfc_resolve(gfc_namespace*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/fortran/resolve.cc:17586
#10 0xca8648 in gfc_resolve(gfc_namespace*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/fortran/resolve.cc:17565
#11 0xc60014 in resolve_all_program_units
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/fortran/parse.cc:6586
#12 0xc60014 in gfc_parse_file()
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/fortran/parse.cc:6842
#13 0xe0406e in gfc_be_parse_file
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/fortran/f95-lang.cc:216
#14 0x2b5d560 in compile_file
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/toplev.cc:452
#15 0x9d8419 in do_compile
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/toplev.cc:2168
#16 0x9d8419 in toplev::main(int, char**)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/toplev.cc:2320
#17 0x9dda41 in main
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/main.cc:39
#18 0x7ffff78a362f in __libc_start_call_main
../sysdeps/nptl/libc_start_call_main.h:58
#19 0x7ffff78a36ef in __libc_start_main_impl ../csu/libc-start.c:392
#20 0x9ddca4 in _start
(/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/objdir/gcc/f951+0x9ddca4)
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63426
[Bug 63426] [meta-bug] Issues found with -fsanitize=undefined
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/104999] [12 Regression] runtime error: pointer index expression with base 0x00000cf67720 overflowed to 0xffffffffea627728
2022-03-21 14:14 [Bug fortran/104999] New: [12 Regression] runtime error: pointer index expression with base 0x00000cf67720 overflowed to 0xffffffffea627728 marxin at gcc dot gnu.org
@ 2022-03-21 14:59 ` rguenth at gcc dot gnu.org
2022-03-21 19:36 ` anlauf at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-03-21 14:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104999
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |needs-bisection
Priority|P3 |P4
Target Milestone|--- |12.0
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/104999] [12 Regression] runtime error: pointer index expression with base 0x00000cf67720 overflowed to 0xffffffffea627728
2022-03-21 14:14 [Bug fortran/104999] New: [12 Regression] runtime error: pointer index expression with base 0x00000cf67720 overflowed to 0xffffffffea627728 marxin at gcc dot gnu.org
2022-03-21 14:59 ` [Bug fortran/104999] " rguenth at gcc dot gnu.org
@ 2022-03-21 19:36 ` anlauf at gcc dot gnu.org
2022-03-22 8:09 ` marxin at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: anlauf at gcc dot gnu.org @ 2022-03-21 19:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104999
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |anlauf at gcc dot gnu.org
--- Comment #1 from anlauf at gcc dot gnu.org ---
sstride[0] is likely used uninitialized in gfc_simplify_cshift.
The corresponding runtime version in libgfortran/intrinsics/cshift0.c
initializes this to 0, so the following patch might help here:
diff --git a/gcc/fortran/simplify.cc b/gcc/fortran/simplify.cc
index 0c15bcb2b0a..233cc42137f 100644
--- a/gcc/fortran/simplify.cc
+++ b/gcc/fortran/simplify.cc
@@ -2134,6 +2134,7 @@ gfc_simplify_cshift (gfc_expr *array, gfc_expr *shift,
gfc_expr *dim)
resultvec = XCNEWVEC (gfc_expr *, arraysize);
+ sstride[0] = 0;
extent[0] = 1;
count[0] = 0;
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/104999] [12 Regression] runtime error: pointer index expression with base 0x00000cf67720 overflowed to 0xffffffffea627728
2022-03-21 14:14 [Bug fortran/104999] New: [12 Regression] runtime error: pointer index expression with base 0x00000cf67720 overflowed to 0xffffffffea627728 marxin at gcc dot gnu.org
2022-03-21 14:59 ` [Bug fortran/104999] " rguenth at gcc dot gnu.org
2022-03-21 19:36 ` anlauf at gcc dot gnu.org
@ 2022-03-22 8:09 ` marxin at gcc dot gnu.org
2022-03-22 19:54 ` cvs-commit at gcc dot gnu.org
2022-03-23 18:13 ` anlauf at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: marxin at gcc dot gnu.org @ 2022-03-22 8:09 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104999
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2022-03-22
Ever confirmed|0 |1
--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
I can confirm the patch candidate fixes the problem. Can you please install it?
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/104999] [12 Regression] runtime error: pointer index expression with base 0x00000cf67720 overflowed to 0xffffffffea627728
2022-03-21 14:14 [Bug fortran/104999] New: [12 Regression] runtime error: pointer index expression with base 0x00000cf67720 overflowed to 0xffffffffea627728 marxin at gcc dot gnu.org
` (2 preceding siblings ...)
2022-03-22 8:09 ` marxin at gcc dot gnu.org
@ 2022-03-22 19:54 ` cvs-commit at gcc dot gnu.org
2022-03-23 18:13 ` anlauf at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-03-22 19:54 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104999
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Harald Anlauf <anlauf@gcc.gnu.org>:
https://gcc.gnu.org/g:774ab2edcb5f3a24ed3a5cffd1143bd49a69f1ee
commit r12-7771-g774ab2edcb5f3a24ed3a5cffd1143bd49a69f1ee
Author: Harald Anlauf <anlauf@gmx.de>
Date: Tue Mar 22 20:54:18 2022 +0100
Fortran: ensure intialization of stride array
gcc/fortran/ChangeLog:
PR fortran/104999
* simplify.cc (gfc_simplify_cshift): Ensure temporary holding
source array stride is initialized.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/104999] [12 Regression] runtime error: pointer index expression with base 0x00000cf67720 overflowed to 0xffffffffea627728
2022-03-21 14:14 [Bug fortran/104999] New: [12 Regression] runtime error: pointer index expression with base 0x00000cf67720 overflowed to 0xffffffffea627728 marxin at gcc dot gnu.org
` (3 preceding siblings ...)
2022-03-22 19:54 ` cvs-commit at gcc dot gnu.org
@ 2022-03-23 18:13 ` anlauf at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: anlauf at gcc dot gnu.org @ 2022-03-23 18:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104999
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|NEW |RESOLVED
--- Comment #4 from anlauf at gcc dot gnu.org ---
Should be FIXED.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2022-03-23 18:13 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2022-03-21 14:14 [Bug fortran/104999] New: [12 Regression] runtime error: pointer index expression with base 0x00000cf67720 overflowed to 0xffffffffea627728 marxin at gcc dot gnu.org
2022-03-21 14:59 ` [Bug fortran/104999] " rguenth at gcc dot gnu.org
2022-03-21 19:36 ` anlauf at gcc dot gnu.org
2022-03-22 8:09 ` marxin at gcc dot gnu.org
2022-03-22 19:54 ` cvs-commit at gcc dot gnu.org
2022-03-23 18:13 ` anlauf at gcc dot gnu.org
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