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| author | Nathan Chancellor <natechancellor@gmail.com> | 2018-06-02 09:02:09 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-06-11 22:49:18 +0200 |
| commit | d58cf41924e89dd75a9aa77c9c8191cc4e274caa (patch) | |
| tree | 8cfa78a36e7b816bf395fcd0552a45267d0e2347 | |
| parent | 058dd233b5593a1a5fae4b8df6cb44cbcdccb537 (diff) | |
| download | linux-stable-d58cf41924e89dd75a9aa77c9c8191cc4e274caa.tar.gz linux-stable-d58cf41924e89dd75a9aa77c9c8191cc4e274caa.tar.bz2 linux-stable-d58cf41924e89dd75a9aa77c9c8191cc4e274caa.zip | |
kconfig: Avoid format overflow warning from GCC 8.1
commit 2ae89c7a82ea9d81a19b4fc2df23bef4b112f24e upstream.
In file included from scripts/kconfig/zconf.tab.c:2485:
scripts/kconfig/confdata.c: In function ‘conf_write’:
scripts/kconfig/confdata.c:773:22: warning: ‘%s’ directive writing likely 7 or more bytes into a region of size between 1 and 4097 [-Wformat-overflow=]
sprintf(newname, "%s%s", dirname, basename);
^~
scripts/kconfig/confdata.c:773:19: note: assuming directive output of 7 bytes
sprintf(newname, "%s%s", dirname, basename);
^~~~~~
scripts/kconfig/confdata.c:773:2: note: ‘sprintf’ output 1 or more bytes (assuming 4104) into a destination of size 4097
sprintf(newname, "%s%s", dirname, basename);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
scripts/kconfig/confdata.c:776:23: warning: ‘.tmpconfig.’ directive writing 11 bytes into a region of size between 1 and 4097 [-Wformat-overflow=]
sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid());
^~~~~~~~~~~
scripts/kconfig/confdata.c:776:3: note: ‘sprintf’ output between 13 and 4119 bytes into a destination of size 4097
sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid());
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Increase the size of tmpname and newname to make GCC happy.
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | scripts/kconfig/confdata.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index 297b079ae4d9..27aac273205b 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -745,7 +745,7 @@ int conf_write(const char *name) struct menu *menu; const char *basename; const char *str; - char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1]; + char dirname[PATH_MAX+1], tmpname[PATH_MAX+22], newname[PATH_MAX+8]; char *env; dirname[0] = 0; |