Messages in this thread Patch in this message | | | Date | Mon, 08 Apr 2013 11:27:08 +0800 | From | Chen Gang <> | Subject | [PATCH] kernel: tsacct: strncpy, always be sure of NUL terminated. |
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for NUL terminated string, always set '\0' at the end.
Signed-off-by: Chen Gang <gang.chen@asianux.com> --- kernel/tsacct.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/kernel/tsacct.c b/kernel/tsacct.c index a1dd9a1..01bcc4e 100644 --- a/kernel/tsacct.c +++ b/kernel/tsacct.c @@ -78,7 +78,8 @@ void bacct_add_tsk(struct user_namespace *user_ns, stats->ac_minflt = tsk->min_flt; stats->ac_majflt = tsk->maj_flt; - strncpy(stats->ac_comm, tsk->comm, sizeof(stats->ac_comm)); + strncpy(stats->ac_comm, tsk->comm, sizeof(stats->ac_comm) - 1); + stats->ac_comm[sizeof(stats->ac_comm) - 1] = '\0'; } -- 1.7.7.6
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