From: Eric Biggers <ebiggers@xxxxxxxxxx>
The 12 character temporary buffer is not necessarily long enough to hold
a 'long' value. Increase it.
Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
---
security/integrity/ima/ima_fs.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index ae9d5c766a3ce..4b50fe9c18edd 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -42,14 +42,15 @@ static int __init default_canonical_fmt_setup(char *str)
__setup("ima_canonical_fmt", default_canonical_fmt_setup);
static int valid_policy = 1;
-#define TMPBUFLEN 12
+
static ssize_t ima_show_htable_value(char __user *buf, size_t count,
loff_t *ppos, atomic_long_t *val)
{
- char tmpbuf[TMPBUFLEN];
+ /* temporary buffer that is plenty long enough */
+ char tmpbuf[32];
ssize_t len;
- len = scnprintf(tmpbuf, TMPBUFLEN, "%li\n", atomic_long_read(val));
+ len = scnprintf(tmpbuf, sizeof(tmpbuf), "%li\n", atomic_long_read(val));
return simple_read_from_buffer(buf, count, ppos, tmpbuf, len);
}
--
2.19.0.605.g01d371f741-goog
