Bug#873032: findutils: find with -printf '%T+' crashes with buffer overflow detected message

[Andreas Metzler]

Control: forwarded -1 https://savannah.gnu.org/bugs/?51841

On 2017-08-23 Ryan  wrote:
> Package: findutils
> Version: 4.6.0+git+20170729-2
> Severity: normal

> Dear Maintainer,


> The findutils/find version now in buster 4.6.0+git+20170729-2 fails
> when I use find with -printf '%T+'.  If I change the time format away
> from + to @, it works fine.

> I then used find from findutils_4.6.0+git+20161106-2_amd64.deb and the
> expected functionality returned.
[...]

Hello Ryan,

thanks for the easy to reproduce bugreport. I have fordwarded the issue
after bisecting it.

cu Andreas
-- 
`What a good friend you are to him, Dr. Maturin. His other friends are
so grateful to you.'
`I sew his ears on from time to time, sure'

Bug#873032: findutils: find with -printf '%T+' crashes with buffer overflow detected message

[Ryan]

Package: findutils
Version: 4.6.0+git+20170729-2
Severity: normal

Dear Maintainer,


The findutils/find version now in buster 4.6.0+git+20170729-2 fails
when I use find with -printf '%T+'.  If I change the time format away
from + to @, it works fine.

I then used find from findutils_4.6.0+git+20161106-2_amd64.deb and the
expected functionality returned.

Example bad run:
➜  find . -mindepth 1 -maxdepth 1 -printf '%T+=%p\n'
*** buffer overflow detected ***: find terminated
=== Backtrace: =
/lib/x86_64-linux-gnu/libc.so.6(+0x70bfb)[0x7efe96d69bfb]
/lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x37)[0x7efe96df21e7]
/lib/x86_64-linux-gnu/libc.so.6(+0xf7320)[0x7efe96df0320]
find(+0xe56b)[0x558ab5db156b]
find(+0xf273)[0x558ab5db2273]
find(+0xdbe9)[0x558ab5db0be9]
find(+0xdbe9)[0x558ab5db0be9]
find(+0x7de9)[0x558ab5daade9]
find(+0x74d1)[0x558ab5daa4d1]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1)[0x7efe96d192e1]
find(+0x761a)[0x558ab5daa61a]
=== Memory map: 
558ab5da3000-558ab5ddb000 r-xp  fe:01 6554946
/usr/bin/find
558ab5fdb000-558ab5fdd000 r--p 00038000 fe:01 6554946
/usr/bin/find
558ab5fdd000-558ab5fde000 rw-p 0003a000 fe:01 6554946
/usr/bin/find
558ab5fde000-558ab5fdf000 rw-p  00:00 0 
558ab6b5b000-558ab6b7c000 rw-p  00:00 0  [heap]
7efe9644e000-7efe96464000 r-xp  fe:01 6422603
/lib/x86_64-linux-gnu/libgcc_s.so.1
7efe96464000-7efe96663000 ---p 00016000 fe:01 6422603
/lib/x86_64-linux-gnu/libgcc_s.so.1
7efe96663000-7efe96664000 r--p 00015000 fe:01 6422603
/lib/x86_64-linux-gnu/libgcc_s.so.1
7efe96664000-7efe96665000 rw-p 00016000 fe:01 6422603
/lib/x86_64-linux-gnu/libgcc_s.so.1
7efe96665000-7efe9667d000 r-xp  fe:01 6422812
/lib/x86_64-linux-gnu/libpthread-2.24.so
7efe9667d000-7efe9687c000 ---p 00018000 fe:01 6422812
/lib/x86_64-linux-gnu/libpthread-2.24.so
7efe9687c000-7efe9687d000 r--p 00017000 fe:01 6422812
/lib/x86_64-linux-gnu/libpthread-2.24.so
7efe9687d000-7efe9687e000 rw-p 00018000 fe:01 6422812
/lib/x86_64-linux-gnu/libpthread-2.24.so
7efe9687e000-7efe96882000 rw-p  00:00 0 
7efe96882000-7efe96884000 r-xp  fe:01 6422773
/lib/x86_64-linux-gnu/libdl-2.24.so
7efe96884000-7efe96a84000 ---p 2000 fe:01 6422773
/lib/x86_64-linux-gnu/libdl-2.24.so
7efe96a84000-7efe96a85000 r--p 2000 fe:01 6422773
/lib/x86_64-linux-gnu/libdl-2.24.so
7efe96a85000-7efe96a86000 rw-p 3000 fe:01 6422773
/lib/x86_64-linux-gnu/libdl-2.24.so
7efe96a86000-7efe96af8000 r-xp  fe:01 6422696
/lib/x86_64-linux-gnu/libpcre.so.3.13.3
7efe96af8000-7efe96cf7000 ---p 00072000 fe:01 6422696
/lib/x86_64-linux-gnu/libpcre.so.3.13.3
7efe96cf7000-7efe96cf8000 r--p 00071000 fe:01 6422696
/lib/x86_64-linux-gnu/libpcre.so.3.13.3
7efe96cf8000-7efe96cf9000 rw-p 00072000 fe:01 6422696
/lib/x86_64-linux-gnu/libpcre.so.3.13.3
7efe96cf9000-7efe96e8c000 r-xp  fe:01 6422769
/lib/x86_64-linux-gnu/libc-2.24.so
7efe96e8c000-7efe9708c000 ---p 00193000 fe:01 6422769
/lib/x86_64-linux-gnu/libc-2.24.so
7efe9708c000-7efe9709 r--p 00193000 fe:01 6422769
/lib/x86_64-linux-gnu/libc-2.24.so
7efe9709-7efe97092000 rw-p 00197000 fe:01 6422769
/lib/x86_64-linux-gnu/libc-2.24.so
7efe97092000-7efe97096000 rw-p  00:00 0 
7efe97096000-7efe97199000 r-xp  fe:01 6422783
/lib/x86_64-linux-gnu/libm-2.24.so
7efe97199000-7efe97398000 ---p 00103000 fe:01 6422783
/lib/x86_64-linux-gnu/libm-2.24.so
7efe97398000-7efe97399000 r--p 00102000 fe:01 6422783
/lib/x86_64-linux-gnu/libm-2.24.so
7efe97399000-7efe9739a000 rw-p 00103000 fe:01 6422783
/lib/x86_64-linux-gnu/libm-2.24.so
7efe9739a000-7efe973bf000 r-xp  fe:01 6422612
/lib/x86_64-linux-gnu/libselinux.so.1
7efe973bf000-7efe975be000 ---p 00025000 fe:01 6422612
/lib/x86_64-linux-gnu/libselinux.so.1
7efe975be000-7efe975bf000 r--p 00024000 fe:01 6422612
/lib/x86_64-linux-gnu/libselinux.so.1
7efe975bf000-7efe975c rw-p 00025000 fe:01 6422612
/lib/x86_64-linux-gnu/libselinux.so.1
7efe975c-7efe975c2000 rw-p  00:00 0 
7efe975c2000-7efe975e5000 r-xp  fe:01 6422605
/lib/x86_64-linux-gnu/ld-2.24.so
7efe97629000-7efe977c4000 r--p  fe:01 6567535
/usr/lib/locale/locale-archive
7efe977c4000-7efe977c9000 rw-p  00:00 0 
7efe977e1000-7efe977e5000 rw-p  00:00 0 
7efe977e5000-7efe977e6000