On 10/7/22 9:46 AM, Ernie Rael wrote:
On 10/6/22 3:39 AM, Bram Moolenaar wrote:
Ernie Rael wrote:
I built ASAN with 9.0.669,
Since I was setup, I did a "make" in testdir. There was one asan
problem
and some test failures that didn't seem too troubling:
For an ASAN log to be useful, I need a way to reproduce it. Ideally a
short script. Or, when it is from running tests, which test. I then
still have to binary search for the cause (commenting out parts of the
testa), which can take time.
Is there a way to associate an asan.### file with a particular test? I
tried doing "ls -lt" and occasionally you can see a some_test.res file
interspersed with the asan files. Something like a timestamp
(optional?) column in messages would do the trick. That would narrow
things down to a few tests.
-ernie
Tracked down the specific test within a particluar test file
$ make test_listlbr_utf8
00:00 Executing Test_linebreak_with_list_and_tabs()
This test has a checkered past
" this was causing a crash
func Test_linebreak_with_list_and_tabs()
While it's failing here, it there more info I can gather.
=================================================================
==1565972==ERROR: AddressSanitizer: heap-buffer-overflow on address
0x60b000001e34 at pc 0x55ef60917392 bp 0x7ffd02091160 sp 0x7ffd02091150
WRITE of size 1 at 0x60b000001e34 thread T0
#0 0x55ef60917391 in utf_char2bytes /src/tools/vim/src/mbyte.c:2262
#1 0x55ef60573b67 in win_line /src/tools/vim/src/drawline.c:2824
#2 0x55ef605a40e4 in win_update /src/tools/vim/src/drawscreen.c:2499
#3 0x55ef60584096 in update_screen /src/tools/vim/src/drawscreen.c:326
#4 0x55ef6071a4f3 in redraw_cmd /src/tools/vim/src/ex_docmd.c:8357
#5 0x55ef6071a3d9 in ex_redraw /src/tools/vim/src/ex_docmd.c:8341
#6 0x55ef606da97c in do_one_cmd /src/tools/vim/src/ex_docmd.c:2561
#7 0x55ef606cdb1a in do_cmdline /src/tools/vim/src/ex_docmd.c:990
#8 0x55ef60f775ff in call_user_func /src/tools/vim/src/userfunc.c:2945
#9 0x55ef60f79590 in call_user_func_check
/src/tools/vim/src/userfunc.c:3107
#10 0x55ef60f7e3a5 in call_func /src/tools/vim/src/userfunc.c:3663
#11 0x55ef60f6acb7 in get_func_tv /src/tools/vim/src/userfunc.c:1841
#12 0x55ef60f926fa in ex_call_inner /src/tools/vim/src/userfunc.c:5647
#13 0x55ef60f958e9 in ex_call /src/tools/vim/src/userfunc.c:5971
#14 0x55ef606da97c in do_one_cmd /src/tools/vim/src/ex_docmd.c:2561
#15 0x55ef606cdb1a in do_cmdline /src/tools/vim/src/ex_docmd.c:990
#16 0x55ef60615a5f in ex_execute /src/tools/vim/src/eval.c:6947
#17 0x55ef606da97c in do_one_cmd /src/tools/vim/src/ex_docmd.c:2561
#18 0x55ef606cdb1a in do_cmdline /src/tools/vim/src/ex_docmd.c:990
#19 0x55ef60f775ff in call_user_func /src/tools/vim/src/userfunc.c:2945
#20 0x55ef60f79590 in call_user_func_check
/src/tools/vim/src/userfunc.c:3107
#21 0x55ef60f7e3a5 in call_func /src/tools/vim/src/userfunc.c:3663
#22 0x55ef60f6acb7 in get_func_tv /src/tools/vim/src/userfunc.c:1841
#23 0x55ef60f926fa in ex_call_inner /src/tools/vim/src/userfunc.c:5647
#24 0x55ef60f958e9 in ex_call /src/tools/vim/src/userfunc.c:5971
#25 0x55ef606da97c in do_one_cmd /src/tools/vim/src/ex_docmd.c:2561
#26 0x55ef606cdb1a in do_cmdline /src/tools/vim/src/ex_docmd.c:990
#27 0x55ef60ca52dc in do_source_ext
/src/tools/vim/src/scriptfile.c:1667
#28 0x55ef60ca7255 in do_source /src/tools/vim/src/scriptfile.c:1811
#29 0x55ef60ca188c in cmd_source /src/tools/vim/src/scriptfile.c:1163
#30 0x55ef60ca1a5d in ex_source /src/tools/vim/src/scriptfile.c:1189
#31 0x55ef606da97c in do_one_cmd /src/tools/vim/src/ex_docmd.c:2561
#32 0x55ef606cdb1a in do_cmdline /src/tools/vim/src/ex_docmd.c:990
#33 0x55ef606cb5df in do_cmdline_cmd /src/tools/vim/src/ex_docmd.c:584
#34 0x55ef612971b3 in exe_commands /src/tools/vim/src/main.c:3135
#35 0x55ef6128818c in vim_main2 /src/tools/vim/src/main.c:781
#36 0x55ef612874c8 in main /src/tools/vim/src/main.c:432
#37 0x7fb19ea29d8f in __libc_start_call_main
../sysdeps/nptl/libc_start_call_main.h:58
#38 0x7fb19ea29e3f in __libc_start_main_impl ../csu/libc-start.c:392
#39 0x55ef60401ed4 in _start (/src/tools/vim/src/vim+0x1322ed4)
0x60b000001e34 is located 0 bytes to the right of 100-byte region
[0x60b000001dd0,0x60b000001e34)
allocated by thread T0 here:
#0 0x7fb1a06b4867 in __interceptor_malloc
../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
#1 0x55ef604023af in lalloc /src/tools/vim/src/alloc.c:246
#2 0x55ef6040214e in alloc /src/tools/vim/src/alloc.c:151
#3 0x55ef605736f7 in win_line /src/tools/vim/src/drawline.c:2802
#4 0x55ef605a40e4 in win_update /src/tools/vim/src/drawscreen.c:2499
#5 0x55ef60584096 in update_screen /src/tools/vim/src/drawscreen.c:326
#6 0x55ef6071a4f3 in redraw_cmd /src/tools/vim/src/ex_docmd.c:8357
#7 0x55ef6071a3d9 in ex_redraw /src/tools/vim/src/ex_docmd.c:8341
#8 0x55ef606da97c in do_one_cmd /src/tools/vim/src/ex_docmd.c:2561
#9 0x55ef606cdb1a in do_cmdline /src/tools/vim/src/ex_docmd.c:990
#10 0x55ef60f775ff in call_user_func /src/tools/vim/src/userfunc.c:2945
#11 0x55ef60f79590 in call_user_func_check
/src/tools/vim/src/userfunc.c:3107
#12 0x55ef60f7e3a5 in call_func /src/tools/vim/src/userfunc.c:3663
#13 0x55ef60f6acb7 in get_func_tv /src/tools/vim/src/userfunc.c:1841
#14 0x55ef60f926fa in ex_call_inner /src/tools/vim/src/userfunc.c:5647
#15 0x55ef60f958e9 in ex_call /src/tools/vim/src/userfunc.c:5971
#16 0x55ef606da97c in do_one_cmd /src/tools/vim/src/ex_docmd.c:2561
#17 0x55ef606cdb1a in do_cmdline /src/tools/vim/src/ex_docmd.c:990
#18 0x55ef60615a5f in ex_execute /src/tools/vim/src/eval.c:6947
#19 0x55ef606da97c in do_one_cmd /src/tools/vim/src/ex_docmd.c:2561
#20 0x55ef606cdb1a in do_cmdline /src/tools/vim/src/ex_docmd.c:990
#21 0x55ef60f775ff in call_user_func /src/tools/vim/src/userfunc.c:2945
#22 0x55ef60f79590 in call_user_func_check
/src/tools/vim/src/userfunc.c:3107
#23 0x55ef60f7e3a5 in call_func /src/tools/vim/src/userfunc.c:3663
#24 0x55ef60f6acb7 in get_func_tv /src/tools/vim/src/userfunc.c:1841
#25 0x55ef60f926fa in ex_call_inner /src/tools/vim/src/userfunc.c:5647
#26 0x55ef60f958e9 in ex_call /src/tools/vim/src/userfunc.c:5971
#27 0x55ef606da97c in do_one_cmd /src/tools/vim/src/ex_docmd.c:2561
#28 0x55ef606cdb1a in do_cmdline /src/tools/vim/src/ex_docmd.c:990
#29 0x55ef60ca52dc in do_source_ext
/src/tools/vim/src/scriptfile.c:1667
SUMMARY: AddressSanitizer: heap-buffer-overflow
/src/tools/vim/src/mbyte.c:2262 in utf_char2bytes
Shadow bytes around the buggy address:
0x0c167fff8370: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd
0x0c167fff8380: fd fd fd fd fd fd fa fa fa fa fa fa fa fa fd fd
0x0c167fff8390: fd fd fd fd fd fd fd fd fd fd fd fa fa fa fa fa
0x0c167fff83a0: fa fa fa fa fd fd fd fd fd fd fd fd fd fd fd fd
0x0c167fff83b0: fd fa fa fa fa fa fa fa fa fa 00 00 00 00 00 00
=>0x0c167fff83c0: 00 00 00 00 00 00[04]fa fa fa fa fa fa fa fa fa
0x0c167fff83d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c167fff83e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c167fff83f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c167fff8400: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c167fff8410: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==1565972==ABORTING
On CI there is also a run with ASAN, thus normally things are caught
there.
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