GNU bug report logs - #55023
Issue with CP empty folder after y2038 on 32-bits Kernel

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From: Arnaud Panaïotis <arnaud.panaiotis <at> gmx.fr>
To: 55023 <at> debbugs.gnu.org
Subject: bug#55023: Issue with CP empty folder after y2038 on 32-bits Kernel
Date: Tue, 19 Apr 2022 09:47:25 +0200

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Hello,

I did not received any feedback from this request right now. Have you
made any progress on this subject ?

Please let me know the progress for this, or contact me for additional
information if needed.

I'd like to have a ticket link to follow the advancement of this issue
(if possible). I'm available to test a patch if you are able to provide
me one.

Best regards,

On 01/04/2022 15:55, Arnaud Panaïotis wrote:
>
> Hello,
>
> I'm working for a client to generate embedded 32-bits Linux Kernel
> working after y2038 issue.
>
> I generated a 5.15 Kernel thought Buildroot with Coreutils 9.0, GCC
> 11.2.0, Binutils 2.37 and CFLAGS  -D_LARGEFILE_SOURCE
> -D_FILE_OFFSET_BITS=64  -D_TIME_BITS=64
>
> The Kernel pass y2038 but I found an issue with cp:
> After analysis, the error occurs when trying to move an empty folder
> without all user mode rights.
>
> Here how to reproduce:
>
> # mkdir -p test/test1 folder
> # chmod u-w test/test1
> # date -s "2040-04-02"
> # cp -a test/* folder/
> cp: setting permissions for 'folder/test1' : Value too large for defined data type
>
> Note: The folder is copied before the error occurs. The copy works
> fine before y2038.
>
>
> The issue comes from coreutils-9.0/src/cp.c
>
> Line 512 : if (lchmod (dir, stats.st_mode | S_IRWXU) != 0)
>
> FYI I had a previous issue while calling lstat function from
> <sys/stat.h> which is included in lib/lchmod.c. I used /usr/bin/stat
> as a workaround.
>
>
> Keep me in touch if you need more information.
>
> --
>
> *Arnaud PANAÏOTIS* | Lead Developer Freelance
> +33 6 34 82 12 62 | arnaud.panaiotis <at> gmx.fr <mailto:Arnaud Panaïotis
> <arnaud.panaiotis <at> gmx.fr>>
>
> 18 place Jean Moulin - 38000 Grenoble - France
> APsudo - www.panaiotis.fr <https://www.panaiotis.fr>
--

*Arnaud PANAÏOTIS* | Lead Developer Freelance
+33 6 34 82 12 62 | arnaud.panaiotis <at> gmx.fr <mailto:Arnaud Panaïotis
<arnaud.panaiotis <at> gmx.fr>>

18 place Jean Moulin - 38000 Grenoble
APsudo - www.panaiotis.fr <https://www.panaiotis.fr>

--
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