stack-overflow S_regatom (regcomp.c:12477)

[p5pRT]

Migrated from rt.perl.org#130230 (status was 'open')

Searchable as RT130230$

[p5pRT]

From @geeknik

Triggered with Perl v5.25.7-26-g7332835.

od -tx1 test076
0000000 70 75 73 68 40 61 2c 30 2c 30 3b 70 75 73 68 40
0000020 61 2c 30 2c 30 3b 6d 61 70 7b 30 7d 73 00 00 28
0000040 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28
0000060 28 28 28 28 28 28 28 28 28 28 28 40 61 40 61 24
0000100 30 40 61 24 61 5b 30 5d 00 20 66 6f 72 40 61 3b
0000120 40 30 3d 28 24 30 3d 2f 40 61 2f 29
0000134

./perl test076
ASAN​:SIGSEGV

==27392==ERROR​: AddressSanitizer​: stack-overflow on address 0x7ffe83c7cd58
(pc 0x0000007a57bb bp 0x7ffe83c7d1d0 sp 0x7ffe83c7cc40 T0)
  #0 0x7a57ba in S_regatom /root/perl/regcomp.c​:12477
  #1 0x76ddb1 in S_regpiece /root/perl/regcomp.c​:11649​:11
  #2 0x76ddb1 in S_regbranch /root/perl/regcomp.c​:11574
  #3 0x6fbd83 in S_reg /root/perl/regcomp.c​:11312​:10
  #4 0x7a60ad in S_regatom /root/perl/regcomp.c​:12553​:15
  #5 0x76ddb1 in S_regpiece /root/perl/regcomp.c​:11649​:11
  #6 0x76ddb1 in S_regbranch /root/perl/regcomp.c​:11574
  #7 0x6fbd83 in S_reg /root/perl/regcomp.c​:11312​:10
  #8 0x7a60ad in S_regatom /root/perl/regcomp.c​:12553​:15
  #9 0x76ddb1 in S_regpiece /root/perl/regcomp.c​:11649​:11
  #10 0x76ddb1 in S_regbranch /root/perl/regcomp.c​:11574
  #11 0x6fbd83 in S_reg /root/perl/regcomp.c​:11312​:10
  #12 0x7a60ad in S_regatom /root/perl/regcomp.c​:12553​:15
  #13 0x76ddb1 in S_regpiece /root/perl/regcomp.c​:11649​:11
  #14 0x76ddb1 in S_regbranch /root/perl/regcomp.c​:11574
  #15 0x6fbd83 in S_reg /root/perl/regcomp.c​:11312​:10
  #16 0x7a60ad in S_regatom /root/perl/regcomp.c​:12553​:15
  #17 0x76ddb1 in S_regpiece /root/perl/regcomp.c​:11649​:11
  #18 0x76ddb1 in S_regbranch /root/perl/regcomp.c​:11574
  #19 0x6fbd83 in S_reg /root/perl/regcomp.c​:11312​:10
  #20 0x7a60ad in S_regatom /root/perl/regcomp.c​:12553​:15
*SNIP*
  #315 0x6fbd83 in S_reg /root/perl/regcomp.c​:11312​:10
  #316 0x7a60ad in S_regatom /root/perl/regcomp.c​:12553​:15
  #317 0x76ddb1 in S_regpiece /root/perl/regcomp.c​:11649​:11
  #318 0x76ddb1 in S_regbranch /root/perl/regcomp.c​:11574
  #319 0x6fbd83 in S_reg /root/perl/regcomp.c​:11312​:10
  #320 0x7a60ad in S_regatom /root/perl/regcomp.c​:12553​:15
  #321 0x76ddb1 in S_regpiece /root/perl/regcomp.c​:11649​:11
  #322 0x76ddb1 in S_regbranch /root/perl/regcomp.c​:11574
  #323 0x6fbd83 in S_reg /root/perl/regcomp.c​:11312​:10
  #324 0x7a60ad in S_regatom /root/perl/regcomp.c​:12553​:15
  #325 0x76ddb1 in S_regpiece /root/perl/regcomp.c​:11649​:11
  #326 0x76ddb1 in S_regbranch /root/perl/regcomp.c​:11574
  #327 0x6fbd83 in S_reg /root/perl/regcomp.c​:11312​:10
  #328 0x7a60ad in S_regatom /root/perl/regcomp.c​:12553​:15
  #329 0x76ddb1 in S_regpiece /root/perl/regcomp.c​:11649​:11
  #330 0x76ddb1 in S_regbranch /root/perl/regcomp.c​:11574
  #331 0x6fbd83 in S_reg /root/perl/regcomp.c​:11312​:10
  #332 0x7a60ad in S_regatom /root/perl/regcomp.c​:12553​:15
  #333 0x76ddb1 in S_regpiece /root/perl/regcomp.c​:11649​:11
  #334 0x76ddb1 in S_regbranch /root/perl/regcomp.c​:11574
  #335 0x6fbd83 in S_reg /root/perl/regcomp.c​:11312​:10

SUMMARY​: AddressSanitizer​: stack-overflow /root/perl/regcomp.c​:12477
S_regatom
==27392==ABORTING

[p5pRT]

From @geeknik

test076.gz

[p5pRT]

From @hvds

On a clang build this reduces to​:
% ./miniperl -e '$x = "(" x 957; /$x/'
Segmentation fault (core dumped)
%

With a gcc build I can increase that to around 3513 before it cores. It fails similarly with valid patterns​:
% ./miniperl -e '$re = ("(" x 3520) . (")" x 3520); /$re/'
Segmentation fault (core dumped)
%

I don't imagine we can do anything about that except to rewrite the regexp engine to further reduce the situations in which it recurses on the C stack, which I don't think is likely any time soon.

Hugo

[p5pRT]

The RT System itself - Status changed from 'new' to 'open'

[p5pRT]

From superbsegfault@gmail.com

=================================================================
==26214==ERROR​: AddressSanitizer​: stack-overflow on address 0x7ffc2b67df90
(pc 0x000000c3b6a9 bp 0x7ffc2b67e210 sp 0x7ffc2b67df20 T0)
  #0 0xc3b6a8 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12882
  #1 0xc1efdb in S_regpiece /home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #2 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #3 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #4 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #5 0xc1efdb in S_regpiece /home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #6 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #7 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #8 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #9 0xc1efdb in S_regpiece /home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #10 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #11 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #12 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #13 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #14 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #15 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #16 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #17 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #18 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #19 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #20 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #21 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #22 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #23 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #24 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #25 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #26 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #27 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #28 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #29 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #30 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #31 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #32 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #33 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #34 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #35 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #36 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #37 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #38 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #39 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #40 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #41 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #42 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #43 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #44 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #45 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #46 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #47 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #48 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #49 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #50 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #51 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #52 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #53 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #54 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #55 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #56 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #57 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #58 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #59 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #60 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #61 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #62 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #63 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #64 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #65 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #66 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #67 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #68 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #69 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #70 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #71 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #72 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #73 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #74 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #75 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #76 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #77 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #78 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #79 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #80 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #81 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #82 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #83 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #84 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #85 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #86 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #87 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #88 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #89 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #90 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #91 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #92 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #93 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #94 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #95 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #96 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #97 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #98 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #99 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #100 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #101 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #102 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #103 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #104 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #105 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #106 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #107 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #108 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #109 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #110 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #111 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #112 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #113 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #114 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #115 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #116 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #117 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #118 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #119 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #120 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #121 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #122 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #123 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #124 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #125 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #126 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #127 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #128 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #129 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #130 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #131 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #132 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #133 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #134 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #135 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #136 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #137 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #138 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #139 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #140 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #141 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #142 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #143 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #144 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #145 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #146 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #147 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #148 0xc3b921 in S_regatom
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  #149 0xc1efdb in S_regpiece
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  #150 0xbcbc57 in S_regbranch
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  #151 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #152 0xc3b921 in S_regatom
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  #153 0xc1efdb in S_regpiece
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  #154 0xbcbc57 in S_regbranch
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  #155 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #156 0xc3b921 in S_regatom
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  #158 0xbcbc57 in S_regbranch
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  #159 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #160 0xc3b921 in S_regatom
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  #162 0xbcbc57 in S_regbranch
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  #166 0xbcbc57 in S_regbranch
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  #167 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #168 0xc3b921 in S_regatom
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  #170 0xbcbc57 in S_regbranch
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  #172 0xc3b921 in S_regatom
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  #174 0xbcbc57 in S_regbranch
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  #176 0xc3b921 in S_regatom
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  #178 0xbcbc57 in S_regbranch
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  #179 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #180 0xc3b921 in S_regatom
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  #182 0xbcbc57 in S_regbranch
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  #183 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #184 0xc3b921 in S_regatom
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  #185 0xc1efdb in S_regpiece
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  #186 0xbcbc57 in S_regbranch
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  #187 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #188 0xc3b921 in S_regatom
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  #190 0xbcbc57 in S_regbranch
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  #191 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #192 0xc3b921 in S_regatom
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  #194 0xbcbc57 in S_regbranch
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  #195 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
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  #198 0xbcbc57 in S_regbranch
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  #199 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
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  #202 0xbcbc57 in S_regbranch
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  #203 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #204 0xc3b921 in S_regatom
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  #205 0xc1efdb in S_regpiece
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  #206 0xbcbc57 in S_regbranch
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  #207 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #208 0xc3b921 in S_regatom
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  #209 0xc1efdb in S_regpiece
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  #210 0xbcbc57 in S_regbranch
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  #211 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #212 0xc3b921 in S_regatom
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  #218 0xbcbc57 in S_regbranch
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  #219 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #220 0xc3b921 in S_regatom
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  #222 0xbcbc57 in S_regbranch
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  #226 0xbcbc57 in S_regbranch
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  #228 0xc3b921 in S_regatom
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  #229 0xc1efdb in S_regpiece
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  #230 0xbcbc57 in S_regbranch
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  #231 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #232 0xc3b921 in S_regatom
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  #233 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #234 0xbcbc57 in S_regbranch
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  #235 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #236 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #237 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #238 0xbcbc57 in S_regbranch
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  #239 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #240 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #241 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #242 0xbcbc57 in S_regbranch
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  #243 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #244 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #245 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #246 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #247 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #248 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #249 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #250 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18

SUMMARY​: AddressSanitizer​: stack-overflow
/home/perl_asan/perl-5.28.0/regcomp.c​:12882 in S_regatom
==26214==ABORTING

[p5pRT]

From superbsegfault@gmail.com

stack_overflow_regatom

[p5pRT]

From superbsegfault@gmail.com

=================================================================
==30361==ERROR​: AddressSanitizer​: stack-overflow on address 0x7ffd636f0fd0
(pc 0x000000bca838 bp 0x7ffd636f1090 sp 0x7ffd636f0f80 T0)
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  #3 0xc1efdb in S_regpiece /home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #4 0xbcbc57 in S_regbranch
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  #5 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #6 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #7 0xc1efdb in S_regpiece /home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #8 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #9 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #10 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #11 0xc1efdb in S_regpiece
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  #12 0xbcbc57 in S_regbranch
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  #13 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #14 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #15 0xc1efdb in S_regpiece
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  #16 0xbcbc57 in S_regbranch
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  #17 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #18 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
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  #20 0xbcbc57 in S_regbranch
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  #21 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #22 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
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/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #24 0xbcbc57 in S_regbranch
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  #25 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #26 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #27 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #28 0xbcbc57 in S_regbranch
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  #29 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #30 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #31 0xc1efdb in S_regpiece
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  #32 0xbcbc57 in S_regbranch
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  #33 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #34 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #35 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #36 0xbcbc57 in S_regbranch
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  #37 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #38 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #39 0xc1efdb in S_regpiece
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  #40 0xbcbc57 in S_regbranch
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  #41 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #42 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
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  #44 0xbcbc57 in S_regbranch
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  #45 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #46 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #47 0xc1efdb in S_regpiece
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  #48 0xbcbc57 in S_regbranch
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  #49 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #50 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #51 0xc1efdb in S_regpiece
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  #52 0xbcbc57 in S_regbranch
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  #53 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #54 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #55 0xc1efdb in S_regpiece
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  #56 0xbcbc57 in S_regbranch
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  #57 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #58 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #59 0xc1efdb in S_regpiece
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  #60 0xbcbc57 in S_regbranch
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  #61 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #62 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #63 0xc1efdb in S_regpiece
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  #64 0xbcbc57 in S_regbranch
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  #65 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #66 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #67 0xc1efdb in S_regpiece
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  #68 0xbcbc57 in S_regbranch
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  #69 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #70 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #71 0xc1efdb in S_regpiece
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  #72 0xbcbc57 in S_regbranch
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  #73 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #74 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #75 0xc1efdb in S_regpiece
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  #76 0xbcbc57 in S_regbranch
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  #77 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #78 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #79 0xc1efdb in S_regpiece
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  #80 0xbcbc57 in S_regbranch
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  #81 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #82 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #83 0xc1efdb in S_regpiece
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  #84 0xbcbc57 in S_regbranch
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SUMMARY​: AddressSanitizer​: stack-overflow
/home/perl_asan/perl-5.28.0/regcomp.c​:11900 in S_regbranch
==30361==ABORTING

[p5pRT]

From superbsegfault@gmail.com

stack_overflow_regbranch

[p5pRT]

From superbsegfault@gmail.com

=================================================================
==30415==ERROR​: AddressSanitizer​: stack-overflow on address 0x7fff8c60afd8
(pc 0x000000bb8e5f bp 0xfffffffffffffffc sp 0x7fff8c60afe0 T0)
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  #219 0xc1efdb in S_regpiece
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  #220 0xbcbc57 in S_regbranch
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  #221 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #222 0xc3b921 in S_regatom
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  #223 0xc1efdb in S_regpiece
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  #224 0xbcbc57 in S_regbranch
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  #225 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #226 0xc3b921 in S_regatom
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  #227 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #228 0xbcbc57 in S_regbranch
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  #229 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #230 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #231 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #232 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #233 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #234 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #235 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #236 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #237 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #238 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #239 0xc1efdb in S_regpiece
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  #240 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #241 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #242 0xc3b921 in S_regatom
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  #243 0xc1efdb in S_regpiece
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  #244 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #245 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #246 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #247 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #248 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #249 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #250 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15

SUMMARY​: AddressSanitizer​: stack-overflow
/home/perl_asan/perl-5.28.0/regcomp.c​:19165​:27 in S_reganode

[p5pRT]

From superbsegfault@gmail.com

stack_overflow_reganode

[p5pRT]

From superbsegfault@gmail.com

=================================================================
==30464==ERROR​: AddressSanitizer​: stack-overflow on address 0x7ffcffb25ff8
(pc 0x000000c1e4d5 bp 0xfffffffffffffffc sp 0x7ffcffb26000 T0)
  #0 0xc1e4d4 in S_regnode_guts
/home/perl_asan/perl-5.28.0/regcomp.c​:19098
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  #2 0xa89695 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11633​:12
  #3 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #4 0xc1efdb in S_regpiece /home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #5 0xbcbc57 in S_regbranch
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  #6 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #7 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #8 0xc1efdb in S_regpiece /home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #9 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #10 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #11 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
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  #13 0xbcbc57 in S_regbranch
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  #14 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #15 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
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/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #17 0xbcbc57 in S_regbranch
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  #18 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
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  #28 0xc1efdb in S_regpiece
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  #29 0xbcbc57 in S_regbranch
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  #30 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #31 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #32 0xc1efdb in S_regpiece
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  #33 0xbcbc57 in S_regbranch
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  #34 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #35 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
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  #49 0xbcbc57 in S_regbranch
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  #50 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
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  #53 0xbcbc57 in S_regbranch
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  #59 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
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  #69 0xbcbc57 in S_regbranch
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  #73 0xbcbc57 in S_regbranch
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  #110 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
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  #149 0xbcbc57 in S_regbranch
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  #156 0xc1efdb in S_regpiece
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  #157 0xbcbc57 in S_regbranch
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  #158 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #159 0xc3b921 in S_regatom
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  #160 0xc1efdb in S_regpiece
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  #161 0xbcbc57 in S_regbranch
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  #162 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #163 0xc3b921 in S_regatom
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  #165 0xbcbc57 in S_regbranch
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  #166 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #167 0xc3b921 in S_regatom
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  #170 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
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  #177 0xbcbc57 in S_regbranch
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  #179 0xc3b921 in S_regatom
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  #180 0xc1efdb in S_regpiece
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  #181 0xbcbc57 in S_regbranch
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  #183 0xc3b921 in S_regatom
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  #184 0xc1efdb in S_regpiece
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  #185 0xbcbc57 in S_regbranch
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  #186 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #187 0xc3b921 in S_regatom
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  #193 0xbcbc57 in S_regbranch
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  #194 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
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  #197 0xbcbc57 in S_regbranch
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  #201 0xbcbc57 in S_regbranch
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  #202 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #203 0xc3b921 in S_regatom
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  #204 0xc1efdb in S_regpiece
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  #205 0xbcbc57 in S_regbranch
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  #206 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #207 0xc3b921 in S_regatom
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  #208 0xc1efdb in S_regpiece
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  #209 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #210 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #211 0xc3b921 in S_regatom
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  #213 0xbcbc57 in S_regbranch
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  #229 0xbcbc57 in S_regbranch
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  #230 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #231 0xc3b921 in S_regatom
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  #232 0xc1efdb in S_regpiece
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  #233 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #234 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #235 0xc3b921 in S_regatom
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  #236 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #237 0xbcbc57 in S_regbranch
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  #238 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #239 0xc3b921 in S_regatom
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  #240 0xc1efdb in S_regpiece
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  #241 0xbcbc57 in S_regbranch
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  #242 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #243 0xc3b921 in S_regatom
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  #244 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #245 0xbcbc57 in S_regbranch
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  #246 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #247 0xc3b921 in S_regatom
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  #248 0xc1efdb in S_regpiece
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  #249 0xbcbc57 in S_regbranch
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  #250 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10

SUMMARY​: AddressSanitizer​: stack-overflow
/home/perl_asan/perl-5.28.0/regcomp.c​:19098 in S_regnode_guts

[p5pRT]

From superbsegfault@gmail.com

stack_overflow_regnode_guts

[p5pRT]

From superbsegfault@gmail.com

=================================================================
==30513==ERROR​: AddressSanitizer​: stack-overflow on address 0x7ffd462fafc0
(pc 0x000000c1ee6c bp 0x7ffd462fb1b0 sp 0x7ffd462fafc0 T0)
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  #4 0xc1efdb in S_regpiece /home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #5 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #6 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #7 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #8 0xc1efdb in S_regpiece /home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #9 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #10 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #11 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
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  #13 0xbcbc57 in S_regbranch
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  #14 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #15 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
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  #28 0xc1efdb in S_regpiece
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  #29 0xbcbc57 in S_regbranch
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  #31 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #32 0xc1efdb in S_regpiece
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  #33 0xbcbc57 in S_regbranch
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  #35 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
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  #49 0xbcbc57 in S_regbranch
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  #59 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
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  #149 0xbcbc57 in S_regbranch
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  #153 0xbcbc57 in S_regbranch
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  #154 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
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  #241 0xbcbc57 in S_regbranch
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/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #245 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #246 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #247 0xc3b921 in S_regatom
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  #248 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #249 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #250 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10

SUMMARY​: AddressSanitizer​: stack-overflow
/home/perl_asan/perl-5.28.0/regcomp.c​:11980 in S_regpiece
==30513==ABORTING

[p5pRT]

From superbsegfault@gmail.com

stack_overflow_regpiece

[p5pRT]

From superbsegfault@gmail.com

=================================================================
==30539==ERROR​: AddressSanitizer​: stack-overflow on address 0x7ffe97bd2ff8
(pc 0x000000bb9455 bp 0x7ffe97bd3690 sp 0x7ffe97bd3000 T0)
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  #3 0xbcbc57 in S_regbranch
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  #4 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
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  #7 0xbcbc57 in S_regbranch
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  #8 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
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  #11 0xbcbc57 in S_regbranch
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  #12 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
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  #15 0xbcbc57 in S_regbranch
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  #27 0xbcbc57 in S_regbranch
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  #28 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #29 0xc3b921 in S_regatom /home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #30 0xc1efdb in S_regpiece
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/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #226 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #227 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #228 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #229 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #230 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #231 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #232 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #233 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #234 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #235 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #236 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #237 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #238 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #239 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #240 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #241 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #242 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #243 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #244 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #245 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #246 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11
  #247 0xbcbc57 in S_regbranch
/home/perl_asan/perl-5.28.0/regcomp.c​:11931​:18
  #248 0xa82085 in S_reg /home/perl_asan/perl-5.28.0/regcomp.c​:11662​:10
  #249 0xc3b921 in S_regatom
/home/perl_asan/perl-5.28.0/regcomp.c​:12957​:15
  #250 0xc1efdb in S_regpiece
/home/perl_asan/perl-5.28.0/regcomp.c​:12003​:11

SUMMARY​: AddressSanitizer​: stack-overflow
/home/perl_asan/perl-5.28.0/regcomp.c​:19081 in S_nextchar