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ima: fix showing large 'violations' or 'runtime_measurements_count'

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commit 1e4c8dafbb upstream.

The 12 character temporary buffer is not necessarily long enough to hold
a 'long' value.  Increase it.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Eric Biggers 2018-09-07 14:33:24 -07:00 committed by Greg Kroah-Hartman
parent 00d3634cab
commit 34aa96127a
1 changed files with 3 additions and 3 deletions
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6
security/integrity/ima/ima_fs.c
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@ -26,14 +26,14 @@
#include "ima.h"
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];
char tmpbuf[32]; /* greater than largest 'long' string value */
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);
}