FAILED: patch "[PATCH] docs: kernel_feat.py: fix potential command injection" failed to apply to 6.6-stable tree

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The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x c48a7c44a1d02516309015b6134c9bb982e17008
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@xxxxxxxxxxxxxxx>' --in-reply-to '2024011831-refining-copilot-9b41@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..

Possible dependencies:

c48a7c44a1d0 ("docs: kernel_feat.py: fix potential command injection")
f949cb759051 ("docs/zh_TW: update contents for zh_TW")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")
c9ad95adc096 ("docs: sparse: add sparse.rst to toctree")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

>From c48a7c44a1d02516309015b6134c9bb982e17008 Mon Sep 17 00:00:00 2001
From: Vegard Nossum <vegard.nossum@xxxxxxxxxx>
Date: Wed, 10 Jan 2024 18:47:58 +0100
Subject: [PATCH] docs: kernel_feat.py: fix potential command injection

The kernel-feat directive passes its argument straight to the shell.
This is unfortunate and unnecessary.

Let's always use paths relative to $srctree/Documentation/ and use
subprocess.check_call() instead of subprocess.Popen(shell=True).

This also makes the code shorter.

This is analogous to commit 3231dd586277 ("docs: kernel_abi.py: fix
command injection") where we did exactly the same thing for
kernel_abi.py, somehow I completely missed this one.

Link: https://fosstodon.org/@jani/111676532203641247
Reported-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Signed-off-by: Vegard Nossum <vegard.nossum@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Jonathan Corbet <corbet@xxxxxxx>
Link: https://lore.kernel.org/r/20240110174758.3680506-1-vegard.nossum@xxxxxxxxxx

diff --git a/Documentation/admin-guide/features.rst b/Documentation/admin-guide/features.rst
index 8c167082a84f..7651eca38227 100644
--- a/Documentation/admin-guide/features.rst
+++ b/Documentation/admin-guide/features.rst
@@ -1,3 +1,3 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-.. kernel-feat:: $srctree/Documentation/features
+.. kernel-feat:: features
diff --git a/Documentation/arch/arc/features.rst b/Documentation/arch/arc/features.rst
index b793583d688a..49ff446ff744 100644
--- a/Documentation/arch/arc/features.rst
+++ b/Documentation/arch/arc/features.rst
@@ -1,3 +1,3 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-.. kernel-feat:: $srctree/Documentation/features arc
+.. kernel-feat:: features arc
diff --git a/Documentation/arch/arm/features.rst b/Documentation/arch/arm/features.rst
index 7414ec03dd15..0e76aaf68eca 100644
--- a/Documentation/arch/arm/features.rst
+++ b/Documentation/arch/arm/features.rst
@@ -1,3 +1,3 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-.. kernel-feat:: $srctree/Documentation/features arm
+.. kernel-feat:: features arm
diff --git a/Documentation/arch/arm64/features.rst b/Documentation/arch/arm64/features.rst
index dfa4cb3cd3ef..03321f4309d0 100644
--- a/Documentation/arch/arm64/features.rst
+++ b/Documentation/arch/arm64/features.rst
@@ -1,3 +1,3 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-.. kernel-feat:: $srctree/Documentation/features arm64
+.. kernel-feat:: features arm64
diff --git a/Documentation/arch/loongarch/features.rst b/Documentation/arch/loongarch/features.rst
index ebacade3ea45..009f44c7951f 100644
--- a/Documentation/arch/loongarch/features.rst
+++ b/Documentation/arch/loongarch/features.rst
@@ -1,3 +1,3 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-.. kernel-feat:: $srctree/Documentation/features loongarch
+.. kernel-feat:: features loongarch
diff --git a/Documentation/arch/m68k/features.rst b/Documentation/arch/m68k/features.rst
index 5107a2119472..de7f0ccf7fc8 100644
--- a/Documentation/arch/m68k/features.rst
+++ b/Documentation/arch/m68k/features.rst
@@ -1,3 +1,3 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-.. kernel-feat:: $srctree/Documentation/features m68k
+.. kernel-feat:: features m68k
diff --git a/Documentation/arch/mips/features.rst b/Documentation/arch/mips/features.rst
index 1973d729b29a..6e0ffe3e7354 100644
--- a/Documentation/arch/mips/features.rst
+++ b/Documentation/arch/mips/features.rst
@@ -1,3 +1,3 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-.. kernel-feat:: $srctree/Documentation/features mips
+.. kernel-feat:: features mips
diff --git a/Documentation/arch/nios2/features.rst b/Documentation/arch/nios2/features.rst
index 8449e63f69b2..89913810ccb5 100644
--- a/Documentation/arch/nios2/features.rst
+++ b/Documentation/arch/nios2/features.rst
@@ -1,3 +1,3 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-.. kernel-feat:: $srctree/Documentation/features nios2
+.. kernel-feat:: features nios2
diff --git a/Documentation/arch/openrisc/features.rst b/Documentation/arch/openrisc/features.rst
index 3f7c40d219f2..bae2e25adfd6 100644
--- a/Documentation/arch/openrisc/features.rst
+++ b/Documentation/arch/openrisc/features.rst
@@ -1,3 +1,3 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-.. kernel-feat:: $srctree/Documentation/features openrisc
+.. kernel-feat:: features openrisc
diff --git a/Documentation/arch/parisc/features.rst b/Documentation/arch/parisc/features.rst
index 501d7c450037..b3aa4d243b93 100644
--- a/Documentation/arch/parisc/features.rst
+++ b/Documentation/arch/parisc/features.rst
@@ -1,3 +1,3 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-.. kernel-feat:: $srctree/Documentation/features parisc
+.. kernel-feat:: features parisc
diff --git a/Documentation/arch/powerpc/features.rst b/Documentation/arch/powerpc/features.rst
index aeae73df86b0..ee4b95e04202 100644
--- a/Documentation/arch/powerpc/features.rst
+++ b/Documentation/arch/powerpc/features.rst
@@ -1,3 +1,3 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-.. kernel-feat:: $srctree/Documentation/features powerpc
+.. kernel-feat:: features powerpc
diff --git a/Documentation/arch/riscv/features.rst b/Documentation/arch/riscv/features.rst
index c70ef6ac2368..36e90144adab 100644
--- a/Documentation/arch/riscv/features.rst
+++ b/Documentation/arch/riscv/features.rst
@@ -1,3 +1,3 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-.. kernel-feat:: $srctree/Documentation/features riscv
+.. kernel-feat:: features riscv
diff --git a/Documentation/arch/s390/features.rst b/Documentation/arch/s390/features.rst
index 57c296a9d8f3..2883dc950681 100644
--- a/Documentation/arch/s390/features.rst
+++ b/Documentation/arch/s390/features.rst
@@ -1,3 +1,3 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-.. kernel-feat:: $srctree/Documentation/features s390
+.. kernel-feat:: features s390
diff --git a/Documentation/arch/sh/features.rst b/Documentation/arch/sh/features.rst
index f722af3b6c99..fae48fe81e9b 100644
--- a/Documentation/arch/sh/features.rst
+++ b/Documentation/arch/sh/features.rst
@@ -1,3 +1,3 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-.. kernel-feat:: $srctree/Documentation/features sh
+.. kernel-feat:: features sh
diff --git a/Documentation/arch/sparc/features.rst b/Documentation/arch/sparc/features.rst
index c0c92468b0fe..96835b6d598a 100644
--- a/Documentation/arch/sparc/features.rst
+++ b/Documentation/arch/sparc/features.rst
@@ -1,3 +1,3 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-.. kernel-feat:: $srctree/Documentation/features sparc
+.. kernel-feat:: features sparc
diff --git a/Documentation/arch/x86/features.rst b/Documentation/arch/x86/features.rst
index b663f15053ce..a33616346a38 100644
--- a/Documentation/arch/x86/features.rst
+++ b/Documentation/arch/x86/features.rst
@@ -1,3 +1,3 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-.. kernel-feat:: $srctree/Documentation/features x86
+.. kernel-feat:: features x86
diff --git a/Documentation/arch/xtensa/features.rst b/Documentation/arch/xtensa/features.rst
index 6b92c7bfa19d..28dcce1759be 100644
--- a/Documentation/arch/xtensa/features.rst
+++ b/Documentation/arch/xtensa/features.rst
@@ -1,3 +1,3 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-.. kernel-feat:: $srctree/Documentation/features xtensa
+.. kernel-feat:: features xtensa
diff --git a/Documentation/sphinx/kernel_feat.py b/Documentation/sphinx/kernel_feat.py
index b5fa2f0542a5..b9df61eb4501 100644
--- a/Documentation/sphinx/kernel_feat.py
+++ b/Documentation/sphinx/kernel_feat.py
@@ -37,8 +37,6 @@ import re
 import subprocess
 import sys
 
-from os import path
-
 from docutils import nodes, statemachine
 from docutils.statemachine import ViewList
 from docutils.parsers.rst import directives, Directive
@@ -76,33 +74,26 @@ class KernelFeat(Directive):
         self.state.document.settings.env.app.warn(message, prefix="")
 
     def run(self):
-
         doc = self.state.document
         if not doc.settings.file_insertion_enabled:
             raise self.warning("docutils: file insertion disabled")
 
         env = doc.settings.env
-        cwd = path.dirname(doc.current_source)
-        cmd = "get_feat.pl rest --enable-fname --dir "
-        cmd += self.arguments[0]
+
+        srctree = os.path.abspath(os.environ["srctree"])
+
+        args = [
+            os.path.join(srctree, 'scripts/get_feat.pl'),
+            'rest',
+            '--enable-fname',
+            '--dir',
+            os.path.join(srctree, 'Documentation', self.arguments[0]),
+        ]
 
         if len(self.arguments) > 1:
-            cmd += " --arch " + self.arguments[1]
+            args.extend(['--arch', self.arguments[1]])
 
-        srctree = path.abspath(os.environ["srctree"])
-
-        fname = cmd
-
-        # extend PATH with $(srctree)/scripts
-        path_env = os.pathsep.join([
-            srctree + os.sep + "scripts",
-            os.environ["PATH"]
-        ])
-        shell_env = os.environ.copy()
-        shell_env["PATH"]    = path_env
-        shell_env["srctree"] = srctree
-
-        lines = self.runCmd(cmd, shell=True, cwd=cwd, env=shell_env)
+        lines = subprocess.check_output(args, cwd=os.path.dirname(doc.current_source)).decode('utf-8')
 
         line_regex = re.compile(r"^\.\. FILE (\S+)$")
 
@@ -121,30 +112,6 @@ class KernelFeat(Directive):
         nodeList = self.nestedParse(out_lines, fname)
         return nodeList
 
-    def runCmd(self, cmd, **kwargs):
-        u"""Run command ``cmd`` and return its stdout as unicode."""
-
-        try:
-            proc = subprocess.Popen(
-                cmd
-                , stdout = subprocess.PIPE
-                , stderr = subprocess.PIPE
-                , **kwargs
-            )
-            out, err = proc.communicate()
-
-            out, err = codecs.decode(out, 'utf-8'), codecs.decode(err, 'utf-8')
-
-            if proc.returncode != 0:
-                raise self.severe(
-                    u"command '%s' failed with return code %d"
-                    % (cmd, proc.returncode)
-                )
-        except OSError as exc:
-            raise self.severe(u"problems with '%s' directive: %s."
-                              % (self.name, ErrorString(exc)))
-        return out
-
     def nestedParse(self, lines, fname):
         content = ViewList()
         node    = nodes.section()
diff --git a/Documentation/translations/zh_CN/arch/loongarch/features.rst b/Documentation/translations/zh_CN/arch/loongarch/features.rst
index 82bfac180bdc..cec38dda8298 100644
--- a/Documentation/translations/zh_CN/arch/loongarch/features.rst
+++ b/Documentation/translations/zh_CN/arch/loongarch/features.rst
@@ -5,4 +5,4 @@
 :Original: Documentation/arch/loongarch/features.rst
 :Translator: Huacai Chen <chenhuacai@xxxxxxxxxxx>
 
-.. kernel-feat:: $srctree/Documentation/features loongarch
+.. kernel-feat:: features loongarch
diff --git a/Documentation/translations/zh_CN/arch/mips/features.rst b/Documentation/translations/zh_CN/arch/mips/features.rst
index da1b956e4a40..0d6df97db069 100644
--- a/Documentation/translations/zh_CN/arch/mips/features.rst
+++ b/Documentation/translations/zh_CN/arch/mips/features.rst
@@ -10,4 +10,4 @@
 
 .. _cn_features:
 
-.. kernel-feat:: $srctree/Documentation/features mips
+.. kernel-feat:: features mips
diff --git a/Documentation/translations/zh_TW/arch/loongarch/features.rst b/Documentation/translations/zh_TW/arch/loongarch/features.rst
index b64e430f55ae..c2175fd32b54 100644
--- a/Documentation/translations/zh_TW/arch/loongarch/features.rst
+++ b/Documentation/translations/zh_TW/arch/loongarch/features.rst
@@ -5,5 +5,5 @@
 :Original: Documentation/arch/loongarch/features.rst
 :Translator: Huacai Chen <chenhuacai@xxxxxxxxxxx>
 
-.. kernel-feat:: $srctree/Documentation/features loongarch
+.. kernel-feat:: features loongarch
 
diff --git a/Documentation/translations/zh_TW/arch/mips/features.rst b/Documentation/translations/zh_TW/arch/mips/features.rst
index f69410420035..3d3906c4d08e 100644
--- a/Documentation/translations/zh_TW/arch/mips/features.rst
+++ b/Documentation/translations/zh_TW/arch/mips/features.rst
@@ -10,5 +10,5 @@
 
 .. _tw_features:
 
-.. kernel-feat:: $srctree/Documentation/features mips
+.. kernel-feat:: features mips
 





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