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* [Bug demangler/99935] New: Stack exhaustion demangling rust mangled name
@ 2021-04-06 13:06 nickc at gcc dot gnu.org
  2021-05-07 16:00 ` [Bug demangler/99935] " nickc at gcc dot gnu.org
                   ` (11 more replies)
  0 siblings, 12 replies; 13+ messages in thread
From: nickc at gcc dot gnu.org @ 2021-04-06 13:06 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99935

            Bug ID: 99935
           Summary: Stack exhaustion demangling rust mangled name
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: demangler
          Assignee: unassigned at gcc dot gnu.org
          Reporter: nickc at gcc dot gnu.org
  Target Milestone: ---

The rust demangler can be pushed into an infinite loop, triggering stack
exhaustion:

  %  cat pr27963
# Reproduced from binutils PR 27963.
# Note - the expected output is wrong.  It is just there as a placeholder.
--format=rust
_RIMBALO_suB_I__Z5printi
fred

  % valgrind ./testsuite/test-demangle < pr27963
[...]
==429737== Stack overflow in thread #1: can't grow stack to 0x1ffe001000
[...]
=429737== Stack overflow in thread #1: can't grow stack to 0x1ffe001000
==429737==    at 0x410BA7: demangle_path (rust-demangle.c:742)
[...]
Segmentation fault (core dumped)

^ permalink raw reply	[flat|nested] 13+ messages in thread
end of thread, other threads:[~2022-02-01 10:57 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-06 13:06 [Bug demangler/99935] New: Stack exhaustion demangling rust mangled name nickc at gcc dot gnu.org
2021-05-07 16:00 ` [Bug demangler/99935] " nickc at gcc dot gnu.org
2021-08-05 10:21 ` redi at gcc dot gnu.org
2021-08-11 15:07 ` nickc at gcc dot gnu.org
2022-01-22 17:54 ` pinskia at gcc dot gnu.org
2022-01-22 17:54 ` pinskia at gcc dot gnu.org
2022-01-22 17:54 ` pinskia at gcc dot gnu.org
2022-01-22 17:55 ` pinskia at gcc dot gnu.org
2022-01-22 17:55 ` pinskia at gcc dot gnu.org
2022-01-22 17:55 ` pinskia at gcc dot gnu.org
2022-01-26 15:31 ` nickc at gcc dot gnu.org
2022-01-31 14:33 ` cvs-commit at gcc dot gnu.org
2022-02-01 10:57 ` nickc at gcc dot gnu.org

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