4.9-stable patches

added patches:
	staging-speakup-replace-strncpy-with-memcpy.patch

diff --git a/queue-4.9/series b/queue-4.9/series
index ba3287be2b9a5cc536dee636786c449778c35922..79f298c56ece4073a73ea796682d651ae44c536a 100644 (file)
--- a/queue-4.9/series
+++ b/queue-4.9/series
@@ -48,3 +48,4 @@ hfsplus-do-not-free-node-before-using.patch
 debugobjects-avoid-recursive-calls-with-kmemleak.patch
 ocfs2-fix-potential-use-after-free.patch
 pstore-convert-console-write-to-use-write_buf.patch
+staging-speakup-replace-strncpy-with-memcpy.patch

diff --git a/queue-4.9/staging-speakup-replace-strncpy-with-memcpy.patch b/queue-4.9/staging-speakup-replace-strncpy-with-memcpy.patch
new file mode 100644 (file)
index 0000000..8ff2d6b
--- /dev/null
+++ b/queue-4.9/staging-speakup-replace-strncpy-with-memcpy.patch
@@ -0,0 +1,56 @@
+From fd29edc7232bc19f969e8f463138afc5472b3d5f Mon Sep 17 00:00:00 2001
+From: Guenter Roeck <linux@roeck-us.net>
+Date: Sun, 1 Jul 2018 13:57:24 -0700
+Subject: staging: speakup: Replace strncpy with memcpy
+
+From: Guenter Roeck <linux@roeck-us.net>
+
+commit fd29edc7232bc19f969e8f463138afc5472b3d5f upstream.
+
+gcc 8.1.0 generates the following warnings.
+
+drivers/staging/speakup/kobjects.c: In function 'punc_store':
+drivers/staging/speakup/kobjects.c:522:2: warning:
+       'strncpy' output truncated before terminating nul
+       copying as many bytes from a string as its length
+drivers/staging/speakup/kobjects.c:504:6: note: length computed here
+
+drivers/staging/speakup/kobjects.c: In function 'synth_store':
+drivers/staging/speakup/kobjects.c:391:2: warning:
+       'strncpy' output truncated before terminating nul
+       copying as many bytes from a string as its length
+drivers/staging/speakup/kobjects.c:388:8: note: length computed here
+
+Using strncpy() is indeed less than perfect since the length of data to
+be copied has already been determined with strlen(). Replace strncpy()
+with memcpy() to address the warning and optimize the code a little.
+
+Signed-off-by: Guenter Roeck <linux@roeck-us.net>
+Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/staging/speakup/kobjects.c |    4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/speakup/kobjects.c
++++ b/drivers/staging/speakup/kobjects.c
+@@ -387,7 +387,7 @@ static ssize_t synth_store(struct kobjec
+       len = strlen(buf);
+       if (len < 2 || len > 9)
+               return -EINVAL;
+-      strncpy(new_synth_name, buf, len);
++      memcpy(new_synth_name, buf, len);
+       if (new_synth_name[len - 1] == '\n')
+               len--;
+       new_synth_name[len] = '\0';
+@@ -517,7 +517,7 @@ static ssize_t punc_store(struct kobject
+               return -EINVAL;
+       }
+ 
+-      strncpy(punc_buf, buf, x);
++      memcpy(punc_buf, buf, x);
+ 
+       while (x && punc_buf[x - 1] == '\n')
+               x--;