https://sourceware.org/bugzilla/show_bug.cgi?id=17512
--- Comment #134 from Nick Clifton ---
Hi Alexander,
> Files: 13
> Errors:
> 4 Conditional jump or move depends on uninitialised value(s)
> 39 Invalid read of size ...
> 4 Invalid write of size ...
> 9 Process terminati
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--- Comment #132 from Alexander Cherepanov ---
Created attachment 8022
--> https://sourceware.org/bugzilla/attachment.cgi?id=8022&action=edit
More crashers for multiarch `objdump -afphxgGtTrRwW --special-syms`
crashes (valgrind)
Files: 13
https://sourceware.org/bugzilla/show_bug.cgi?id=17512
--- Comment #131 from Alexander Cherepanov ---
(In reply to Nick Clifton from comment #130)
> Intriguing - the fault only happens with an x86_66-pc-linux-gnu toolchain.
> I was using one configured for all targets (including x86_64-pc-linux-g
https://sourceware.org/bugzilla/show_bug.cgi?id=17512
--- Comment #130 from Nick Clifton ---
Hi Alexander,
> fe3b9a79 still crashes `objdump -afphxgGtTrRwW --special-syms` for me
> (others are fixed). Perhaps the form of my new stats was confusing...
Intriguing - the fault only happens with an
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--- Comment #128 from Alexander Cherepanov ---
(In reply to Nick Clifton from comment #127)
> (In reply to Alexander Cherepanov from comment #125)
>
> > Files: 3
> > Errors:
> > 3 *** Segmentation fault
>
> Fixed. Next. :-)
fe3b9a79
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--- Comment #127 from Nick Clifton ---
(In reply to Alexander Cherepanov from comment #125)
> Files: 3
> Errors:
> 3 *** Segmentation fault
Fixed. Next. :-)
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--- Comment #125 from Alexander Cherepanov ---
Created attachment 8003
--> https://sourceware.org/bugzilla/attachment.cgi?id=8003&action=edit
More crashers for `objdump -afphxgGtTrRwW --special-syms`
crashes
Files: 7
Errors:
26 Invali
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--- Comment #124 from Nick Clifton ---
(In reply to Alexander Cherepanov from comment #122)
> Errors:
> 1 Conditional jump or move depends on uninitialised value(s)
> 45 Invalid read of size ...
> 2 Invalid write of size ...
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--- Comment #122 from Alexander Cherepanov ---
Created attachment 7993
--> https://sourceware.org/bugzilla/attachment.cgi?id=7993&action=edit
More crashes for `objdump -afphxgGtTrRwW --special-syms`
elfutils seems to have a nice tests...
F
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--- Comment #121 from Nick Clifton ---
Hi Alexander,
> Errors:
> 9 Argument 'size' of function malloc has a fishy (possibly negative)
> value: ...
> 2 Invalid read of size ...
> 2 Process terminating with default action of s
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--- Comment #119 from Alexander Cherepanov ---
(In reply to Nick Clifton from comment #117)
> In case it is not obvious, I am not too concerned by the "silly argument
> to malloc" warnings from valgrind. I night fix them one day, but for no
https://sourceware.org/bugzilla/show_bug.cgi?id=17512
--- Comment #118 from Alexander Cherepanov ---
Created attachment 7990
--> https://sourceware.org/bugzilla/attachment.cgi?id=7990&action=edit
Crashes for `objdump -afphxgGtTrRwW --special-syms`
Files: 11
Errors:
9 Argument 'size' of f
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--- Comment #117 from Nick Clifton ---
Hi Alexander,
Thanks for the continued testing.
In case it is not obvious, I am not too concerned by the "silly argument to
malloc" warnings from valgrind. I night fix them one day, but for now the
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--- Comment #115 from Alexander Cherepanov ---
Created attachment 7978
--> https://sourceware.org/bugzilla/attachment.cgi?id=7978&action=edit
More crashes for `objdump -afphxgGtTrRwW --special-syms`
Files: 41
Errors:
20 Argument 'size'
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--- Comment #112 from Alexander Cherepanov ---
Created attachment 7965
--> https://sourceware.org/bugzilla/attachment.cgi?id=7965&action=edit
Next crashers for multiarch `objdump -afphxgGtTrRwW --special-syms`
Files: 37
Errors:
12 Argu
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--- Comment #111 from Nick Clifton ---
(In reply to Alexander Cherepanov from comment #108)
> First bunch of crashers for multiarch `objdump -afphxgGtTrRwW
> --special-syms`
Great - these should be fixed now.
> Nick, if you prefer to deal
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--- Comment #109 from Hanno Boeck ---
Created attachment 7960
--> https://sourceware.org/bugzilla/attachment.cgi?id=7960&action=edit
objdump-x-fuzzing.tar.xz
Here are some more results from american fuzzy lop with objdump -x (nm issues
from
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--- Comment #108 from Alexander Cherepanov ---
Created attachment 7959
--> https://sourceware.org/bugzilla/attachment.cgi?id=7959&action=edit
First bunch of crashers for multiarch `objdump -afphxgGtTrRwW --special-syms`
Confugured binutils
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--- Comment #107 from Alexander Cherepanov ---
Hi Nick,
(In reply to Nick Clifton from comment #106)
> Doh! Thanks for that. I have applied your patch to the sources.
Thanks!
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--- Comment #106 from Nick Clifton ---
Hi Alexander,
> Created attachment 7956 [details]
> Patch to fix a crash inside _bfd_coff_read_string_table in bfd/coffgen.c
Doh! Thanks for that. I have applied your patch to the sources.
Cheers
N
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--- Comment #104 from Alexander Cherepanov ---
Created attachment 7956
--> https://sourceware.org/bugzilla/attachment.cgi?id=7956&action=edit
Patch to fix a crash inside _bfd_coff_read_string_table in bfd/coffgen.c
Hi Nick,
(In reply to Ni
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--- Comment #103 from Alexander Cherepanov ---
(In reply to Nick Clifton from comment #60)
> Created attachment 7898 [details]
> Proposed patch to fix valgrind's complaints about using uninitialised memory
>
> (In reply to comment #57)
>
> H
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--- Comment #102 from Nick Clifton ---
Hi Alexander,
> Files: 3
> Errors:
> 3 Invalid write of size ...
> 3 Process terminating with default action of signal 11 (SIGSEGV)
I cannot reproduce these failures. :-(
What host/target
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--- Comment #101 from Hanno Boeck ---
(In reply to Nick Clifton from comment #100)
> I did. but I cannot make nm fail locally. What command line are you using
> to invoke nm ? Also for which target have you compiled the binutils ?
Nothing s
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--- Comment #100 from Nick Clifton ---
Hi Hanno,
> did you see attachment 7937 [details]? Still crashes nm with latest git, this
> is in the ihex parser.
I did. but I cannot make nm fail locally. What command line are you using to
invoke n
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--- Comment #99 from Alexander Cherepanov ---
Created attachment 7947
--> https://sourceware.org/bugzilla/attachment.cgi?id=7947&action=edit
AFL crashers for `objdump -x`
With AFL...
Files: 3
Errors:
3 Invalid write of size ...
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--- Comment #98 from Hanno Boeck ---
Nick, did you see attachment 7937? Still crashes nm with latest git, this is in
the ihex parser.
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--- Comment #97 from Nick Clifton ---
Alright - the bugs exposed by those latest fuzzed binaries should be fixed now.
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--- Comment #94 from Alexander Cherepanov ---
(In reply to Alexander Cherepanov from comment #93)
> Created attachment 7941 [details]
> And some aborts for `objdump -afphxgGtTrRwW --special-syms`
>
> Files: 17
> Errors:
> 17 No assertion
https://sourceware.org/bugzilla/show_bug.cgi?id=17512
--- Comment #93 from Alexander Cherepanov ---
Created attachment 7941
--> https://sourceware.org/bugzilla/attachment.cgi?id=7941&action=edit
And some aborts for `objdump -afphxgGtTrRwW --special-syms`
Files: 17
Errors:
17 No assertion
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--- Comment #92 from Alexander Cherepanov ---
Created attachment 7940
--> https://sourceware.org/bugzilla/attachment.cgi?id=7940&action=edit
Fresh crashers for `objdump -afphxgGtTrRwW --special-syms`
Added several samples to the fuzzing...
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--- Comment #91 from Hanno Boeck ---
Created attachment 7937
--> https://sourceware.org/bugzilla/attachment.cgi?id=7937&action=edit
4 samples crashing nm and objdump -x
I join in again. 4 crash samples, this time created with american fuzzy
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--- Comment #90 from Nick Clifton ---
Hi Alexander,
Several improvements to the dwarf reader later and the latest round of test
cases should be fixed.
Cheers
Nick
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--- Comment #88 from Alexander Cherepanov ---
Created attachment 7934
--> https://sourceware.org/bugzilla/attachment.cgi?id=7934&action=edit
A bit more badness for `objdump -afphxgGtTrRwW --special-syms`
Files: 3
Errors:
1 Invalid rea
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--- Comment #87 from Alexander Cherepanov ---
Created attachment 7930
--> https://sourceware.org/bugzilla/attachment.cgi?id=7930&action=edit
Baddness for `objdump -afphxgGtTrRwW --special-syms`
Messed with option in the previous run, readel
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--- Comment #86 from Nick Clifton ---
Hi Alexander,
That one was tricky, but it should be resolved now,
Cheers
Nick
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--- Comment #84 from Alexander Cherepanov ---
Created attachment 7928
--> https://sourceware.org/bugzilla/attachment.cgi?id=7928&action=edit
More badness for `objdump -afphxgGWtTrRw --special-syms`
Files: 18
Errors:
5 Argument 'size'
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--- Comment #83 from Nick Clifton ---
Hi Alexander,
Once more into the breech dear friends...
Cheers
Nick
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--- Comment #81 from Alexander Cherepanov ---
Created attachment 7925
--> https://sourceware.org/bugzilla/attachment.cgi?id=7925&action=edit
Aborts in `objdump -afphxgGWtTrRw --special-syms`
3 cases of abort() in `objdump -afphxgGWtTrRw --s
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--- Comment #80 from Alexander Cherepanov ---
Created attachment 7924
--> https://sourceware.org/bugzilla/attachment.cgi?id=7924&action=edit
Crashers for `objdump -afphxgGWtTrRw --special-syms`
Files: 26
Errors:
6 Argument 'size' of f
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--- Comment #79 from Nick Clifton ---
Hi Alexander,
Please try again :-)
Cheers
Nick
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--- Comment #75 from Hanno Boeck ---
(In reply to Nick Clifton from comment #73)
> I tried that file, but I could not find a fault. Either with valgrind or
> address sanitizer. I have recently updated the readelf sources though, so
> maybe t
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--- Comment #74 from Alexander Cherepanov ---
Created attachment 7919
--> https://sourceware.org/bugzilla/attachment.cgi?id=7919&action=edit
More badness for `objdump -x`
Files: 18
Errors:
10 Argument 'size' of function malloc has a fi
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--- Comment #73 from Nick Clifton ---
Hi Hanno,
(In reply to Hanno Boeck from comment #71)
> I still see some odd things.
>
> Three files cause severe ressource usage and long loops:
> 079-116340-0.004 (part of attachment 7910 [details])
> 0
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--- Comment #72 from Hanno Boeck ---
Created attachment 7918
--> https://sourceware.org/bugzilla/attachment.cgi?id=7918&action=edit
elf exposing uninitialized value access with valgrind
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--- Comment #71 from Hanno Boeck ---
I still see some odd things.
Three files cause severe ressource usage and long loops:
079-116340-0.004 (part of attachment 7910)
078-13914-0.004 (part of attachment 7886)
1315-linux-omagic (attachment 7880
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--- Comment #70 from Alexander Cherepanov ---
FTR: It seems the number of the bug in the commit is mistyped as PR
binutils/17521. The commit is here:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=36e9d67b868c85232ab630514260f0d9c
https://sourceware.org/bugzilla/show_bug.cgi?id=17512
--- Comment #69 from Nick Clifton ---
Hi Hanno, Hi Alexander,
Right - please update your master branch sources and try again. In theory
all of the test cases that you have posted to this issue should now run without
generating any valgrind
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--- Comment #68 from Alexander Cherepanov ---
Created attachment 7910
--> https://sourceware.org/bugzilla/attachment.cgi?id=7910&action=edit
More badness for `objdump -x`
Files: 11
Errors:
1 Argument 'size' of function malloc has a fi
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--- Comment #67 from Alexander Cherepanov ---
Created attachment 7905
--> https://sourceware.org/bugzilla/attachment.cgi?id=7905&action=edit
More crashers for `objdump -x`
Files: 9
Errors:
29 Conditional jump or move depends on uniniti
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--- Comment #66 from Hanno Boeck ---
Created attachment 7904
--> https://sourceware.org/bugzilla/attachment.cgi?id=7904&action=edit
remaining valgrind warnings
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--- Comment #65 from Hanno Boeck ---
Hi Nick,
If I use latest head and apply 7989 patch for valgrind warnings the number of
uninitialized memory issues valgrind reports is reduced, but they don't
disappear. I still get some valgrind warnings
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--- Comment #64 from Nick Clifton ---
Hi Alexander,
I have checked another patch in. Please update your sources and try again.
Cheers
Nick
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--- Comment #62 from Alexander Cherepanov ---
(In reply to Alexander Cherepanov from comment #61)
> Created attachment 7900 [details]
> More crashers for `objdump -x`
>
> objdump is definitely getting harder to crash. Keep up the good work!
>
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--- Comment #61 from Alexander Cherepanov ---
Created attachment 7900
--> https://sourceware.org/bugzilla/attachment.cgi?id=7900&action=edit
More crashers for `objdump -x`
objdump is definitely getting harder to crash. Keep up the good work
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--- Comment #60 from Nick Clifton ---
Created attachment 7898
--> https://sourceware.org/bugzilla/attachment.cgi?id=7898&action=edit
Proposed patch to fix valgrind's complaints about using uninitialised memory
(In reply to comment #57)
Hi
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--- Comment #59 from Nick Clifton ---
(In reply to Alexander Cherepanov from comment #54)
> More crashers for `objdump -x`
Ok - I have updated the master branch with patches for all of these problems.
Please try it out and let me know if yo
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--- Comment #57 from Alexander Cherepanov ---
Created attachment 7893
--> https://sourceware.org/bugzilla/attachment.cgi?id=7893&action=edit
valgrind output for 140849-0.004.exe with --track-origins=yes
(In reply to Nick Clifton from commen
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--- Comment #56 from Nick Clifton ---
(In reply to Alexander Cherepanov from comment #53)
> Created attachment 7885 [details]
> valgrind output for 140849-0.004.exe
>
> Shows a bunch of error of the following types:
> - Use of uninitialised v
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--- Comment #54 from Alexander Cherepanov ---
Created attachment 7886
--> https://sourceware.org/bugzilla/attachment.cgi?id=7886&action=edit
More crashers for `objdump -x`
list.txt inside the archive lists various errors from valgrind (with
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--- Comment #53 from Alexander Cherepanov ---
Created attachment 7885
--> https://sourceware.org/bugzilla/attachment.cgi?id=7885&action=edit
valgrind output for 140849-0.004.exe
Shows a bunch of error of the following types:
- Use of uninit
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--- Comment #52 from Hanno Boeck ---
Nick, have you seen bug #17533 ? (ar archive crasher) That's still unfixed, all
others seem fine now.
I'll do a re-run on my large fuzzing samples collection.
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--- Comment #51 from Nick Clifton ---
Hi Hanno, Hi Alexander,
Please try the latest master binutils sources. They should be able to handle
the new test files gracefully.
Cheers
Nick
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--- Comment #50 from cvs-commit at gcc dot gnu.org ---
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--- Comment #49 from Alexander Cherepanov ---
Created attachment 7881
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Several pe crashers
all different according to valgrind
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--- Comment #47 from Hanno Boeck ---
Created attachment 7879
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another memory exhaustion sample (pe)
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--- Comment #48 from Hanno Boeck ---
Created attachment 7880
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another memory exhaustion sample (aout)
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--- Comment #44 from cvs-commit at gcc dot gnu.org ---
This is an automated email from the git hooks/post-receive script. It was
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--- Comment #42 from Nick Clifton ---
Hi Hanno,
OK, head has been updated again. Please give it a respin.
Cheers
Nick
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--- Comment #46 from Hanno Boeck ---
Created attachment 7878
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another memory exhaustion sample (elf)
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--- Comment #45 from Nick Clifton ---
Hi Hanno,
The loop would have ended eventually - when your machine ran out of memory.
:-)
Anyway it is fixed now, so bring on the next one.
Cheers
Nick
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--- Comment #43 from Hanno Boeck ---
Created attachment 7877
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objdump -s hanger
It's not over yet. This one will cause objdump -s to hang forever, likely an
endless loop.
https://sourceware.org/bugzilla/show_bug.cgi?id=17512
--- Comment #41 from cvs-commit at gcc dot gnu.org ---
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
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--- Comment #31 from Nick Clifton ---
Hi Hanno,
OK, the head/master branch sources have been updated again. Please give this
new version a go.
Cheers
Nick
PS. I think that the difference between my address sanitized build and yours
wa
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--- Comment #36 from cvs-commit at gcc dot gnu.org ---
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--- Comment #38 from Hanno Boeck ---
Created attachment 7873
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fuzzed elf out of memory sample
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--- Comment #39 from Hanno Boeck ---
Created attachment 7874
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valgrind on dllmaxvals
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--- Comment #32 from cvs-commit at gcc dot gnu.org ---
This is an automated email from the git hooks/post-receive script. It was
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--- Comment #33 from Hanno Boeck ---
Created attachment 7869
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ihex stack overflow
Hi Nick, thanks. One fixed, one more fuzzed :-)
==25054== ERROR: AddressSanitizer: stac
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