for NUL terminated string, always be sure of '\0' at the end.
in our case, need return value, so still use strncpy
(strlcpy return the size, not the pointer)
Signed-off-by: Chen Gang <[email protected]>
---
kernel/events/core.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 4757941..bdc0e25 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -4752,7 +4752,8 @@ static void perf_event_mmap_event(struct perf_mmap_event
*mmap_event)
} else {
if (arch_vma_name(mmap_event->vma)) {
name = strncpy(tmp, arch_vma_name(mmap_event->vma),
- sizeof(tmp));
+ sizeof(tmp) - 1);
+ tmp[sizeof(tmp) - 1] = '\0';
goto got_name;
}
--
1.7.7.6
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