From: Alan Cox <a...@linux.intel.com>

Make the parsing robust.

(perf has some other assumptions that BUFSIZE <= MAX_PATH which are
 not touched here)

Reported-by: Jackie Chang
Signed-off-by: Alan Cox <a...@linux.intel.com>
Cc: Alan Cox <gno...@lxorguk.ukuu.org.uk>
Cc: Peter Zijlstra <pet...@infradead.org>
Link: http://lkml.kernel.org/n/tip-g2uoiwbrpiimb63rx32qv...@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/util/header.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index bb3e0ede6183..893f8e2df928 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -930,7 +930,7 @@ static int write_topo_node(int fd, int node)
                /* skip over invalid lines */
                if (!strchr(buf, ':'))
                        continue;
-               if (sscanf(buf, "%*s %*d %s %"PRIu64, field, &mem) != 2)
+               if (sscanf(buf, "%*s %*d %31s %"PRIu64, field, &mem) != 2)
                        goto done;
                if (!strcmp(field, "MemTotal:"))
                        mem_total = mem;
-- 
1.8.1.4

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