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* [Bug other/101425] New: [12 Regression] AddressSanitizer: heap-buffer-overflow at candidates_list_and_hint since r12-1903-gaf9987e817f54806
@ 2021-07-12  5:16 marxin at gcc dot gnu.org
  2021-07-12  5:16 ` [Bug other/101425] " marxin at gcc dot gnu.org
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: marxin at gcc dot gnu.org @ 2021-07-12  5:16 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101425

            Bug ID: 101425
           Summary: [12 Regression] AddressSanitizer: heap-buffer-overflow
                    at candidates_list_and_hint since
                    r12-1903-gaf9987e817f54806
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: burnus at gcc dot gnu.org
  Target Milestone: ---

Since the revision, I see:

$ echo "" | valgrind --trace-children=yes gcc -foffload=amdgcn-amdhsa -c -x c -
==22404== Memcheck, a memory error detector
==22404== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==22404== Using Valgrind-3.17.0.GIT and LibVEX; rerun with -h for copyright
info
==22404== Command: gcc -foffload=amdgcn-amdhsa -c -x c -
==22404== 
gcc: error: GCC is not configured to support 'amdgcn-amdhsa' as offload target
==22404== Invalid write of size 1
==22404==    at 0x4237A7: candidates_list_and_hint(char const*, char*&,
auto_vec<char const*, 0ul> const&) (opts-common.c:1294)
==22404==    by 0x40BF08: check_offload_target_name(char const*, long)
(gcc.c:4018)
==22404==    by 0x40CA73: handle_foffload_option (gcc.c:4105)
==22404==    by 0x40CA73: driver_handle_option(gcc_options*, gcc_options*,
cl_decoded_option const*, unsigned int, int, unsigned int, cl_option_handlers
const*, diagnostic_context*, void (*)()) (gcc.c:4582)
==22404==    by 0x42420E: handle_option(gcc_options*, gcc_options*,
cl_decoded_option const*, unsigned int, int, unsigned int, cl_option_handlers
const*, bool, diagnostic_context*) (opts-common.c:1181)
==22404==    by 0x42435C: read_cmdline_option(gcc_options*, gcc_options*,
cl_decoded_option*, unsigned int, unsigned int, cl_option_handlers const*,
diagnostic_context*) (opts-common.c:1431)
==22404==    by 0x40E59E: process_command(unsigned int, cl_decoded_option*)
(gcc.c:4912)
==22404==    by 0x4171D5: driver::set_up_specs() const (gcc.c:8294)
==22404==    by 0x40676C: driver::main(int, char**) (gcc.c:8102)
==22404==    by 0x406D0F: main (gcc-main.c:47)
==22404==  Address 0x4bb7b1f is 1 bytes before a block of size 1 alloc'd
==22404==    at 0x483C70F: malloc (vg_replace_malloc.c:380)
==22404==    by 0x4A640B: xmalloc (xmalloc.c:147)
==22404==    by 0x423754: candidates_list_and_hint(char const*, char*&,
auto_vec<char const*, 0ul> const&) (opts-common.c:1286)
==22404==    by 0x40BF08: check_offload_target_name(char const*, long)
(gcc.c:4018)
==22404==    by 0x40CA73: handle_foffload_option (gcc.c:4105)
==22404==    by 0x40CA73: driver_handle_option(gcc_options*, gcc_options*,
cl_decoded_option const*, unsigned int, int, unsigned int, cl_option_handlers
const*, diagnostic_context*, void (*)()) (gcc.c:4582)
==22404==    by 0x42420E: handle_option(gcc_options*, gcc_options*,
cl_decoded_option const*, unsigned int, int, unsigned int, cl_option_handlers
const*, bool, diagnostic_context*) (opts-common.c:1181)
==22404==    by 0x42435C: read_cmdline_option(gcc_options*, gcc_options*,
cl_decoded_option*, unsigned int, unsigned int, cl_option_handlers const*,
diagnostic_context*) (opts-common.c:1431)
==22404==    by 0x40E59E: process_command(unsigned int, cl_decoded_option*)
(gcc.c:4912)
==22404==    by 0x4171D5: driver::set_up_specs() const (gcc.c:8294)
==22404==    by 0x40676C: driver::main(int, char**) (gcc.c:8102)
==22404==    by 0x406D0F: main (gcc-main.c:47)

^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-07-12  9:37 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-12  5:16 [Bug other/101425] New: [12 Regression] AddressSanitizer: heap-buffer-overflow at candidates_list_and_hint since r12-1903-gaf9987e817f54806 marxin at gcc dot gnu.org
2021-07-12  5:16 ` [Bug other/101425] " marxin at gcc dot gnu.org
2021-07-12  8:00 ` [Bug sanitizer/101425] " rguenth at gcc dot gnu.org
2021-07-12  8:59 ` marxin at gcc dot gnu.org
2021-07-12  9:35 ` cvs-commit at gcc dot gnu.org
2021-07-12  9:37 ` marxin at gcc dot gnu.org

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