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PERL-5.26.1 stack_overflow #16316

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p5pRT opened this issue Dec 19, 2017 · 6 comments
Closed

PERL-5.26.1 stack_overflow #16316

p5pRT opened this issue Dec 19, 2017 · 6 comments

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@p5pRT
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p5pRT commented Dec 19, 2017

Migrated from rt.perl.org#132606 (status was 'open')

Searchable as RT132606$
@p5pRT
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p5pRT commented Dec 19, 2017

From sraums2498@gmail.com

=================================================================
==28140==ERROR​: AddressSanitizer​: stack-overflow on address 0x7ffd403afe98
(pc 0x000001376d3a bp 0x7ffd403b0170 sp 0x7ffd403afdd0 T0)
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  #196 0x137bb0d in S_regatom
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  #208 0x137bb0d in S_regatom
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  #224 0x137bb0d in S_regatom
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  #225 0x140a32f in S_regpiece
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  #228 0x137bb0d in S_regatom
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/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11332
  #232 0x137bb0d in S_regatom
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  #233 0x140a32f in S_regpiece
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  #234 0x140a32f in S_regbranch
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11594
  #235 0x11ac400 in S_reg
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11332
  #236 0x137bb0d in S_regatom
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:12565
  #237 0x140a32f in S_regpiece
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11669
  #238 0x140a32f in S_regbranch
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11594
  #239 0x11ac400 in S_reg
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11332
  #240 0x137bb0d in S_regatom
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:12565
  #241 0x140a32f in S_regpiece
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  #242 0x140a32f in S_regbranch
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  #243 0x11ac400 in S_reg
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  #244 0x137bb0d in S_regatom
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  #245 0x140a32f in S_regpiece
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11669
  #246 0x140a32f in S_regbranch
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  #247 0x11ac400 in S_reg
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11332
  #248 0x137bb0d in S_regatom
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:12565
  #249 0x140a32f in S_regpiece
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11669
  #250 0x140a32f in S_regbranch
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11594
  #251 0x11ac400 in S_reg
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11332
  #252 0x137bb0d in S_regatom
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:12565
  #253 0x140a32f in S_regpiece
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  #254 0x140a32f in S_regbranch
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  #256 0x137bb0d in S_regatom
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  #260 0x137bb0d in S_regatom
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  #264 0x137bb0d in S_regatom
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  #266 0x140a32f in S_regbranch
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  #267 0x11ac400 in S_reg
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  #268 0x137bb0d in S_regatom
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  #270 0x140a32f in S_regbranch
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  #272 0x137bb0d in S_regatom
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  #275 0x11ac400 in S_reg
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11332
  #276 0x137bb0d in S_regatom
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:12565
  #277 0x140a32f in S_regpiece
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11669
  #278 0x140a32f in S_regbranch
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11594
  #279 0x11ac400 in S_reg
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11332
  #280 0x137bb0d in S_regatom
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:12565
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  #284 0x137bb0d in S_regatom
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  #288 0x137bb0d in S_regatom
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  #289 0x140a32f in S_regpiece
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  #290 0x140a32f in S_regbranch
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11594
  #291 0x11ac400 in S_reg
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11332
  #292 0x137bb0d in S_regatom
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:12565
  #293 0x140a32f in S_regpiece
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11669
  #294 0x140a32f in S_regbranch
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11594
  #295 0x11ac400 in S_reg
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11332
  #296 0x137bb0d in S_regatom
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:12565
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  #300 0x137bb0d in S_regatom
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  #303 0x11ac400 in S_reg
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11332
  #304 0x137bb0d in S_regatom
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:12565
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  #307 0x11ac400 in S_reg
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11332
  #308 0x137bb0d in S_regatom
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:12565
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/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11669
  #314 0x140a32f in S_regbranch
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11594
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/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11332
  #316 0x137bb0d in S_regatom
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:12565
  #317 0x140a32f in S_regpiece
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11669
  #318 0x140a32f in S_regbranch
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11594
  #319 0x11ac400 in S_reg
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11332
  #320 0x137bb0d in S_regatom
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:12565
  #321 0x140a32f in S_regpiece
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11669
  #322 0x140a32f in S_regbranch
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11594
  #323 0x11ac400 in S_reg
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11332
  #324 0x137bb0d in S_regatom
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:12565
  #325 0x140a32f in S_regpiece
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11669
  #326 0x140a32f in S_regbranch
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11594
  #327 0x11ac400 in S_reg
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11332
  #328 0x137bb0d in S_regatom
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:12565
  #329 0x140a32f in S_regpiece
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11669
  #330 0x140a32f in S_regbranch
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11594
  #331 0x11ac400 in S_reg
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11332
  #332 0x137bb0d in S_regatom
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:12565
  #333 0x140a32f in S_regpiece
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11669
  #334 0x140a32f in S_regbranch
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11594
  #335 0x11ac400 in S_reg
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:11332

SUMMARY​: AddressSanitizer​: stack-overflow
/home/asan_perl/Documents/perl-5.26.1/regcomp.c​:12489 S_regatom
==28140==ABORTING

--
Regards,
SRAUMS

@p5pRT
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p5pRT commented Dec 19, 2017

From sraums2498@gmail.com

0_1

@p5pRT
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p5pRT commented Dec 21, 2017

From @iabyn

On Mon, Dec 18, 2017 at 10​:05​:49PM -0800, SRAUMS JN wrote​:

# New Ticket Created by SRAUMS JN
# Please include the string​: [perl #132606]
# in the subject line of all future correspondence about this issue.
# <URL​: https://rt-archive.perl.org/perl5/Ticket/Display.html?id=132606 >

=================================================================
==28140==ERROR​: AddressSanitizer​: stack-overflow on address 0x7ffd403afe98

As Zefram said for a similar ticket​:

Not exploitable​: overflowing the stack just causes segv.

--
Lear​: Dost thou call me fool, boy?
Fool​: All thy other titles thou hast given away; that thou wast born with.

@p5pRT
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p5pRT commented Dec 21, 2017

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

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p5pRT commented Jan 23, 2018

From @tonycoz

On Thu, 21 Dec 2017 06​:58​:45 -0800, davem wrote​:

On Mon, Dec 18, 2017 at 10​:05​:49PM -0800, SRAUMS JN wrote​:

# New Ticket Created by SRAUMS JN
# Please include the string​: [perl #132606]
# in the subject line of all future correspondence about this issue.
# <URL​: https://rt-archive.perl.org/perl5/Ticket/Display.html?id=132606 >

=================================================================
==28140==ERROR​: AddressSanitizer​: stack-overflow on address 0x7ffd403afe98

As Zefram said for a similar ticket​:

Not exploitable​: overflowing the stack just causes segv.

Moved to the public queue.

Tony

@khwilliamson
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This was fixed by

commit 6ef7fe5
Author: Karl Williamson khw@cpan.org
Date: Sun Mar 17 22:11:04 2019 -0600

PATCH: [perl #131551] Too deep regex compilation recursion

This patch, started by Yves Orton, and refined in consultation with Tony
Cook, imposes a maximum depth of unclosed left parentheses, at which
point it croaks.  This is to prevent the segfault in the ticket.

The patch adds a variable that can be set to increase or decrease this
limit at run time (actually regex compilation time) should this be
desired, and hence our pre-determined limit of 1000 can be changed if
necessary.

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