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* [PATCH 1/1] gnu: tcsh: Fix out of bounds read.
@ 2016-12-07  6:22 Leo Famulari
  2016-12-07  8:09 ` Efraim Flashner
  0 siblings, 1 reply; 7+ messages in thread
From: Leo Famulari @ 2016-12-07  6:22 UTC (permalink / raw)
  To: guix-devel

* gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/shells.scm (tcsh)[source]: Use it.
---
 gnu/local.mk                                       |  1 +
 .../patches/tcsh-fix-out-of-bounds-read.patch      | 31 ++++++++++++++++++++++
 gnu/packages/shells.scm                            |  3 ++-
 3 files changed, 34 insertions(+), 1 deletion(-)
 create mode 100644 gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch

diff --git a/gnu/local.mk b/gnu/local.mk
index bc9b06da6..552272bbd 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -879,6 +879,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/tclxml-3.2-install.patch			\
   %D%/packages/patches/tcsh-do-not-define-BSDWAIT.patch		\
   %D%/packages/patches/tcsh-fix-autotest.patch			\
+  %D%/packages/patches/tcsh-fix-out-of-bounds-read.patch	\
   %D%/packages/patches/teensy-loader-cli-help.patch		\
   %D%/packages/patches/texi2html-document-encoding.patch	\
   %D%/packages/patches/texi2html-i18n.patch			\
diff --git a/gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch b/gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch
new file mode 100644
index 000000000..48c294f78
--- /dev/null
+++ b/gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch
@@ -0,0 +1,31 @@
+Fix out-of-bounds read in c_substitute():
+
+http://seclists.org/oss-sec/2016/q4/612
+
+Patch copied from upstream source repository:
+
+https://github.com/tcsh-org/tcsh/commit/6a542dc4fb2ba26518a47e9b3a9bcd6a91b94596
+
+From 6a542dc4fb2ba26518a47e9b3a9bcd6a91b94596 Mon Sep 17 00:00:00 2001
+From: christos <christos>
+Date: Fri, 2 Dec 2016 16:59:28 +0000
+Subject: [PATCH] Fix out of bounds read (Brooks Davis) (reproduce by starting
+ tcsh and hitting tab at the prompt)
+
+---
+ ed.chared.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/ed.chared.c b/ed.chared.c
+index 1277e53..310393e 100644
+--- ed.chared.c
++++ ed.chared.c
+@@ -750,7 +750,7 @@ c_substitute(void)
+     /*
+      * If we found a history character, go expand it.
+      */
+-    if (HIST != '\0' && *p == HIST)
++    if (p >= InputBuf && HIST != '\0' && *p == HIST)
+ 	nr_exp = c_excl(p);
+     else
+         nr_exp = 0;
diff --git a/gnu/packages/shells.scm b/gnu/packages/shells.scm
index f3350ef50..8596efc87 100644
--- a/gnu/packages/shells.scm
+++ b/gnu/packages/shells.scm
@@ -186,7 +186,8 @@ has a small feature set similar to a traditional Bourne shell.")
                (base32
                 "1a4z9kwgx1iqqzvv64si34m60gj34p7lp6rrcrb59s7ka5wa476q"))
               (patches (search-patches "tcsh-fix-autotest.patch"
-                                       "tcsh-do-not-define-BSDWAIT.patch"))
+                                       "tcsh-do-not-define-BSDWAIT.patch"
+                                       "tcsh-fix-out-of-bounds-read.patch"))
               (patch-flags '("-p0"))))
     (build-system gnu-build-system)
     (inputs
-- 
2.11.0

^ permalink raw reply related	[flat|nested] 7+ messages in thread

* Re: [PATCH 1/1] gnu: tcsh: Fix out of bounds read.
  2016-12-07  6:22 [PATCH 1/1] gnu: tcsh: Fix out of bounds read Leo Famulari
@ 2016-12-07  8:09 ` Efraim Flashner
  2016-12-07 10:54   ` Ludovic Courtès
  0 siblings, 1 reply; 7+ messages in thread
From: Efraim Flashner @ 2016-12-07  8:09 UTC (permalink / raw)
  To: Leo Famulari; +Cc: guix-devel

[-- Attachment #1: Type: text/plain, Size: 3640 bytes --]

On Wed, Dec 07, 2016 at 01:22:18AM -0500, Leo Famulari wrote:
> * gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch: New file.
> * gnu/local.mk (dist_patch_DATA): Add it.
> * gnu/packages/shells.scm (tcsh)[source]: Use it.
> ---
>  gnu/local.mk                                       |  1 +
>  .../patches/tcsh-fix-out-of-bounds-read.patch      | 31 ++++++++++++++++++++++
>  gnu/packages/shells.scm                            |  3 ++-
>  3 files changed, 34 insertions(+), 1 deletion(-)
>  create mode 100644 gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch
> 
> diff --git a/gnu/local.mk b/gnu/local.mk
> index bc9b06da6..552272bbd 100644
> --- a/gnu/local.mk
> +++ b/gnu/local.mk
> @@ -879,6 +879,7 @@ dist_patch_DATA =						\
>    %D%/packages/patches/tclxml-3.2-install.patch			\
>    %D%/packages/patches/tcsh-do-not-define-BSDWAIT.patch		\
>    %D%/packages/patches/tcsh-fix-autotest.patch			\
> +  %D%/packages/patches/tcsh-fix-out-of-bounds-read.patch	\
>    %D%/packages/patches/teensy-loader-cli-help.patch		\
>    %D%/packages/patches/texi2html-document-encoding.patch	\
>    %D%/packages/patches/texi2html-i18n.patch			\
> diff --git a/gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch b/gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch
> new file mode 100644
> index 000000000..48c294f78
> --- /dev/null
> +++ b/gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch
> @@ -0,0 +1,31 @@
> +Fix out-of-bounds read in c_substitute():
> +
> +http://seclists.org/oss-sec/2016/q4/612
> +
> +Patch copied from upstream source repository:
> +
> +https://github.com/tcsh-org/tcsh/commit/6a542dc4fb2ba26518a47e9b3a9bcd6a91b94596
> +
> +From 6a542dc4fb2ba26518a47e9b3a9bcd6a91b94596 Mon Sep 17 00:00:00 2001
> +From: christos <christos>
> +Date: Fri, 2 Dec 2016 16:59:28 +0000
> +Subject: [PATCH] Fix out of bounds read (Brooks Davis) (reproduce by starting
> + tcsh and hitting tab at the prompt)
> +
> +---
> + ed.chared.c | 2 +-
> + 1 file changed, 1 insertion(+), 1 deletion(-)
> +
> +diff --git a/ed.chared.c b/ed.chared.c
> +index 1277e53..310393e 100644
> +--- ed.chared.c
> ++++ ed.chared.c
> +@@ -750,7 +750,7 @@ c_substitute(void)
> +     /*
> +      * If we found a history character, go expand it.
> +      */
> +-    if (HIST != '\0' && *p == HIST)
> ++    if (p >= InputBuf && HIST != '\0' && *p == HIST)
> + 	nr_exp = c_excl(p);
> +     else
> +         nr_exp = 0;
> diff --git a/gnu/packages/shells.scm b/gnu/packages/shells.scm
> index f3350ef50..8596efc87 100644
> --- a/gnu/packages/shells.scm
> +++ b/gnu/packages/shells.scm
> @@ -186,7 +186,8 @@ has a small feature set similar to a traditional Bourne shell.")
>                 (base32
>                  "1a4z9kwgx1iqqzvv64si34m60gj34p7lp6rrcrb59s7ka5wa476q"))
>                (patches (search-patches "tcsh-fix-autotest.patch"
> -                                       "tcsh-do-not-define-BSDWAIT.patch"))
> +                                       "tcsh-do-not-define-BSDWAIT.patch"
> +                                       "tcsh-fix-out-of-bounds-read.patch"))
>                (patch-flags '("-p0"))))
>      (build-system gnu-build-system)
>      (inputs
> -- 
> 2.11.0
> 
> 

Still no CVE assigned to it?

Building the following 429 packages would ensure 829 dependent packages are rebuilt
Looks like it'll need to be grafted in addition.

-- 
Efraim Flashner   <efraim@flashner.co.il>   אפרים פלשנר
GPG key = A28B F40C 3E55 1372 662D  14F7 41AA E7DC CA3D 8351
Confidentiality cannot be guaranteed on emails sent or received unencrypted

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^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH 1/1] gnu: tcsh: Fix out of bounds read.
  2016-12-07  8:09 ` Efraim Flashner
@ 2016-12-07 10:54   ` Ludovic Courtès
  2016-12-07 12:55     ` Marius Bakke
  0 siblings, 1 reply; 7+ messages in thread
From: Ludovic Courtès @ 2016-12-07 10:54 UTC (permalink / raw)
  To: Efraim Flashner; +Cc: guix-devel

Efraim Flashner <efraim@flashner.co.il> skribis:

> On Wed, Dec 07, 2016 at 01:22:18AM -0500, Leo Famulari wrote:
>> * gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch: New file.
>> * gnu/local.mk (dist_patch_DATA): Add it.
>> * gnu/packages/shells.scm (tcsh)[source]: Use it.
>> ---
>>  gnu/local.mk                                       |  1 +
>>  .../patches/tcsh-fix-out-of-bounds-read.patch      | 31 ++++++++++++++++++++++
>>  gnu/packages/shells.scm                            |  3 ++-
>>  3 files changed, 34 insertions(+), 1 deletion(-)
>>  create mode 100644 gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch
>> 
>> diff --git a/gnu/local.mk b/gnu/local.mk
>> index bc9b06da6..552272bbd 100644
>> --- a/gnu/local.mk
>> +++ b/gnu/local.mk
>> @@ -879,6 +879,7 @@ dist_patch_DATA =						\
>>    %D%/packages/patches/tclxml-3.2-install.patch			\
>>    %D%/packages/patches/tcsh-do-not-define-BSDWAIT.patch		\
>>    %D%/packages/patches/tcsh-fix-autotest.patch			\
>> +  %D%/packages/patches/tcsh-fix-out-of-bounds-read.patch	\
>>    %D%/packages/patches/teensy-loader-cli-help.patch		\
>>    %D%/packages/patches/texi2html-document-encoding.patch	\
>>    %D%/packages/patches/texi2html-i18n.patch			\
>> diff --git a/gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch b/gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch
>> new file mode 100644
>> index 000000000..48c294f78
>> --- /dev/null
>> +++ b/gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch
>> @@ -0,0 +1,31 @@
>> +Fix out-of-bounds read in c_substitute():
>> +
>> +http://seclists.org/oss-sec/2016/q4/612
>> +
>> +Patch copied from upstream source repository:
>> +
>> +https://github.com/tcsh-org/tcsh/commit/6a542dc4fb2ba26518a47e9b3a9bcd6a91b94596
>> +
>> +From 6a542dc4fb2ba26518a47e9b3a9bcd6a91b94596 Mon Sep 17 00:00:00 2001
>> +From: christos <christos>
>> +Date: Fri, 2 Dec 2016 16:59:28 +0000
>> +Subject: [PATCH] Fix out of bounds read (Brooks Davis) (reproduce by starting
>> + tcsh and hitting tab at the prompt)
>> +
>> +---
>> + ed.chared.c | 2 +-
>> + 1 file changed, 1 insertion(+), 1 deletion(-)
>> +
>> +diff --git a/ed.chared.c b/ed.chared.c
>> +index 1277e53..310393e 100644
>> +--- ed.chared.c
>> ++++ ed.chared.c
>> +@@ -750,7 +750,7 @@ c_substitute(void)
>> +     /*
>> +      * If we found a history character, go expand it.
>> +      */
>> +-    if (HIST != '\0' && *p == HIST)
>> ++    if (p >= InputBuf && HIST != '\0' && *p == HIST)
>> + 	nr_exp = c_excl(p);
>> +     else
>> +         nr_exp = 0;
>> diff --git a/gnu/packages/shells.scm b/gnu/packages/shells.scm
>> index f3350ef50..8596efc87 100644
>> --- a/gnu/packages/shells.scm
>> +++ b/gnu/packages/shells.scm
>> @@ -186,7 +186,8 @@ has a small feature set similar to a traditional Bourne shell.")
>>                 (base32
>>                  "1a4z9kwgx1iqqzvv64si34m60gj34p7lp6rrcrb59s7ka5wa476q"))
>>                (patches (search-patches "tcsh-fix-autotest.patch"
>> -                                       "tcsh-do-not-define-BSDWAIT.patch"))
>> +                                       "tcsh-do-not-define-BSDWAIT.patch"
>> +                                       "tcsh-fix-out-of-bounds-read.patch"))
>>                (patch-flags '("-p0"))))
>>      (build-system gnu-build-system)
>>      (inputs
>> -- 
>> 2.11.0
>> 
>> 
>
> Still no CVE assigned to it?
>
> Building the following 429 packages would ensure 829 dependent packages are rebuilt
> Looks like it'll need to be grafted in addition.

That could go to the next ‘staging’ branch or ‘core-updates’, which
might be merged first.  (How come this many packages depend on tcsh?)

Ludo’.

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH 1/1] gnu: tcsh: Fix out of bounds read.
  2016-12-07 10:54   ` Ludovic Courtès
@ 2016-12-07 12:55     ` Marius Bakke
  2016-12-08  0:40       ` Leo Famulari
  0 siblings, 1 reply; 7+ messages in thread
From: Marius Bakke @ 2016-12-07 12:55 UTC (permalink / raw)
  To: Ludovic Courtès, Efraim Flashner; +Cc: guix-devel

[-- Attachment #1: Type: text/plain, Size: 250 bytes --]

Ludovic Courtès <ludo@gnu.org> writes:

> That could go to the next ‘staging’ branch or ‘core-updates’, which
> might be merged first.  (How come this many packages depend on tcsh?)

tcsh is used by the 'boost' and 'texlive' packages.

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^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH 1/1] gnu: tcsh: Fix out of bounds read.
  2016-12-07 12:55     ` Marius Bakke
@ 2016-12-08  0:40       ` Leo Famulari
  2016-12-08  9:39         ` Ludovic Courtès
  0 siblings, 1 reply; 7+ messages in thread
From: Leo Famulari @ 2016-12-08  0:40 UTC (permalink / raw)
  To: Marius Bakke; +Cc: guix-devel


[-- Attachment #1.1: Type: text/plain, Size: 875 bytes --]

On Wed, Dec 07, 2016 at 01:55:47PM +0100, Marius Bakke wrote:
> Ludovic Courtès <ludo@gnu.org> writes:
> 
> > That could go to the next ‘staging’ branch or ‘core-updates’, which
> > might be merged first.  (How come this many packages depend on tcsh?)
> 
> tcsh is used by the 'boost' and 'texlive' packages.

Tcsh is a native-input of boost.

I think that using a graft, as in the attached patch, should work.

However, when applying this patch on top of a69bc7071ec (hydra: Fix
wrong-num-args error when computing the cross jobs.) and building boost
with this patch, the same derivation is built:

$ ./pre-inst-env guix build boost && ./pre-inst-env guix build --no-grafts boost
/gnu/store/nfg59rims86f87q5hasj8ngad3cd9dpa-boost-1.61.0
/gnu/store/nfg59rims86f87q5hasj8ngad3cd9dpa-boost-1.61.0

I'd expect it to change. Am I missing something?

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From 7d84262b28a9a6d823d57ba25c316888ab044595 Mon Sep 17 00:00:00 2001
From: Leo Famulari <leo@famulari.name>
Date: Wed, 7 Dec 2016 18:51:27 -0500
Subject: [PATCH] gnu: tcsh: Fix out of bounds read.

* gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/shells.scm (tcsh)[replacement]: New field.
(tcsh/fixed): New variable.
---
 gnu/local.mk                                       |  1 +
 .../patches/tcsh-fix-out-of-bounds-read.patch      | 31 ++++++++++++++++++++++
 gnu/packages/shells.scm                            | 10 +++++++
 3 files changed, 42 insertions(+)
 create mode 100644 gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch

diff --git a/gnu/local.mk b/gnu/local.mk
index eec0e018b..72b64a6cc 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -884,6 +884,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/tclxml-3.2-install.patch			\
   %D%/packages/patches/tcsh-do-not-define-BSDWAIT.patch		\
   %D%/packages/patches/tcsh-fix-autotest.patch			\
+  %D%/packages/patches/tcsh-fix-out-of-bounds-read.patch	\
   %D%/packages/patches/teensy-loader-cli-help.patch		\
   %D%/packages/patches/texi2html-document-encoding.patch	\
   %D%/packages/patches/texi2html-i18n.patch			\
diff --git a/gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch b/gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch
new file mode 100644
index 000000000..48c294f78
--- /dev/null
+++ b/gnu/packages/patches/tcsh-fix-out-of-bounds-read.patch
@@ -0,0 +1,31 @@
+Fix out-of-bounds read in c_substitute():
+
+http://seclists.org/oss-sec/2016/q4/612
+
+Patch copied from upstream source repository:
+
+https://github.com/tcsh-org/tcsh/commit/6a542dc4fb2ba26518a47e9b3a9bcd6a91b94596
+
+From 6a542dc4fb2ba26518a47e9b3a9bcd6a91b94596 Mon Sep 17 00:00:00 2001
+From: christos <christos>
+Date: Fri, 2 Dec 2016 16:59:28 +0000
+Subject: [PATCH] Fix out of bounds read (Brooks Davis) (reproduce by starting
+ tcsh and hitting tab at the prompt)
+
+---
+ ed.chared.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/ed.chared.c b/ed.chared.c
+index 1277e53..310393e 100644
+--- ed.chared.c
++++ ed.chared.c
+@@ -750,7 +750,7 @@ c_substitute(void)
+     /*
+      * If we found a history character, go expand it.
+      */
+-    if (HIST != '\0' && *p == HIST)
++    if (p >= InputBuf && HIST != '\0' && *p == HIST)
+ 	nr_exp = c_excl(p);
+     else
+         nr_exp = 0;
diff --git a/gnu/packages/shells.scm b/gnu/packages/shells.scm
index f3350ef50..193160975 100644
--- a/gnu/packages/shells.scm
+++ b/gnu/packages/shells.scm
@@ -174,6 +174,7 @@ has a small feature set similar to a traditional Bourne shell.")
 (define-public tcsh
   (package
     (name "tcsh")
+    (replacement tcsh/fixed)
     (version "6.18.01")
     (source (origin
               (method url-fetch)
@@ -231,6 +232,15 @@ command-line editor, programmable word completion, spelling correction, a
 history mechanism, job control and a C-like syntax.")
     (license bsd-4)))
 
+(define tcsh/fixed
+  (package
+    (inherit tcsh)
+    (name "tcsh")
+    (source (origin
+              (inherit (package-source tcsh))
+              (patches (cons (search-patch "tcsh-fix-out-of-bounds-read.patch")
+                             (origin-patches (package-source tcsh))))))))
+
 (define-public zsh
   (package
     (name "zsh")
-- 
2.11.0


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^ permalink raw reply related	[flat|nested] 7+ messages in thread

* Re: [PATCH 1/1] gnu: tcsh: Fix out of bounds read.
  2016-12-08  0:40       ` Leo Famulari
@ 2016-12-08  9:39         ` Ludovic Courtès
  2016-12-08 18:54           ` Leo Famulari
  0 siblings, 1 reply; 7+ messages in thread
From: Ludovic Courtès @ 2016-12-08  9:39 UTC (permalink / raw)
  To: Leo Famulari; +Cc: guix-devel

Leo Famulari <leo@famulari.name> skribis:

> On Wed, Dec 07, 2016 at 01:55:47PM +0100, Marius Bakke wrote:
>> Ludovic Courtès <ludo@gnu.org> writes:
>> 
>> > That could go to the next ‘staging’ branch or ‘core-updates’, which
>> > might be merged first.  (How come this many packages depend on tcsh?)
>> 
>> tcsh is used by the 'boost' and 'texlive' packages.
>
> Tcsh is a native-input of boost.
>
> I think that using a graft, as in the attached patch, should work.
>
> However, when applying this patch on top of a69bc7071ec (hydra: Fix
> wrong-num-args error when computing the cross jobs.) and building boost
> with this patch, the same derivation is built:
>
> $ ./pre-inst-env guix build boost && ./pre-inst-env guix build --no-grafts boost
> /gnu/store/nfg59rims86f87q5hasj8ngad3cd9dpa-boost-1.61.0
> /gnu/store/nfg59rims86f87q5hasj8ngad3cd9dpa-boost-1.61.0
>
> I'd expect it to change. Am I missing something?

Boost has no run-time dependency on tcsh, as shown by:

  guix size boost | grep tcsh

This is probably the reason why tcsh is in ‘native-inputs’, and also the
reason why Boost is not grafted in this case.

It’s a case where using a graft allows us to not rebuild anything when
we know it wouldn’t make any difference.

Anyway, the patch LGTM, thank you!

Ludo’.

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH 1/1] gnu: tcsh: Fix out of bounds read.
  2016-12-08  9:39         ` Ludovic Courtès
@ 2016-12-08 18:54           ` Leo Famulari
  0 siblings, 0 replies; 7+ messages in thread
From: Leo Famulari @ 2016-12-08 18:54 UTC (permalink / raw)
  To: Ludovic Courtès; +Cc: guix-devel

On Thu, Dec 08, 2016 at 10:39:21AM +0100, Ludovic Courtès wrote:
> Boost has no run-time dependency on tcsh, as shown by:
> 
>   guix size boost | grep tcsh
> 
> This is probably the reason why tcsh is in ‘native-inputs’, and also the
> reason why Boost is not grafted in this case.
> 
> It’s a case where using a graft allows us to not rebuild anything when
> we know it wouldn’t make any difference.

Oh, right! Thank you for taking the time to explain something that I
already knew and momentarily forgot! :)

> Anyway, the patch LGTM, thank you!

Pushed!

^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2016-12-08 18:54 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-12-07  6:22 [PATCH 1/1] gnu: tcsh: Fix out of bounds read Leo Famulari
2016-12-07  8:09 ` Efraim Flashner
2016-12-07 10:54   ` Ludovic Courtès
2016-12-07 12:55     ` Marius Bakke
2016-12-08  0:40       ` Leo Famulari
2016-12-08  9:39         ` Ludovic Courtès
2016-12-08 18:54           ` Leo Famulari

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