Fix the following strncpy() string truncation warning:
In function ‘strncat’,
inlined from ‘fill_empty_controller’ at cgget.c:584:2:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:136:10: warning:
‘__builtin___strncat_chk’ output may be truncated copying between 0 and 4095
bytes from a string of length 4095 [-Wstringop-truncation]
136 | return __builtin___strncat_chk (__dest, __src, __len, __bos (__dest));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Tom Hromatka <[email protected]>
---
src/tools/cgget.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/tools/cgget.c b/src/tools/cgget.c
index 769ef9270006..e9e29fd2350e 100644
--- a/src/tools/cgget.c
+++ b/src/tools/cgget.c
@@ -582,6 +582,7 @@ static int fill_empty_controller(struct cgroup * const cg,
path_len = strlen(path);
strncat(path, cg->name, FILENAME_MAX - path_len - 1);
+ path[sizeof(path) - 1] = '\0';
if (access(path, F_OK))
goto out;
--
2.25.1
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