Commit-ID: c97847d2f0eb77c806e650e04d9bbcf79fa05730 Gitweb: http://git.kernel.org/tip/c97847d2f0eb77c806e650e04d9bbcf79fa05730 Author: Chen Gang <[email protected]> AuthorDate: Mon, 8 Apr 2013 11:48:27 +0800 Committer: Ingo Molnar <[email protected]> CommitDate: Mon, 8 Apr 2013 13:26:55 +0200
perf: Fix strncpy() use, always make sure it's NUL terminated For NUL terminated string, always make sure that there's '\0' at the end. In our case we need a return value, so still use strncpy() and fix up the tail explicitly. (strlcpy() returns the size, not the pointer) Signed-off-by: Chen Gang <[email protected]> Cc: [email protected] <[email protected]> Cc: [email protected] <[email protected]> Cc: [email protected] <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> --- kernel/events/core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/events/core.c b/kernel/events/core.c index 59412d0..7f0d67e 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -4737,7 +4737,8 @@ 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; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
