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perf_counter: Fix stack corruption in perf_read_hw

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With PERF_FORMAT_ID, perf_read_hw now needs space for up to 4 values.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Marti Raudsepp 2009-06-13 02:35:01 +03:00 committed by Ingo Molnar
parent 87847b8f26
commit d5e8da6449
1 changed files with 1 additions and 1 deletions
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2
kernel/perf_counter.c
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@ -1553,7 +1553,7 @@ static int perf_release(struct inode *inode, struct file *file)
static ssize_t
perf_read_hw(struct perf_counter *counter, char __user *buf, size_t count)
{
u64 values[3];
u64 values[4];
int n;
/*