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libselinux: procattr: return error on invalid pid_t input.

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Signed-off-by: Daniel Cashman <dcashman@android.com>
This commit is contained in:
dcashman 2016-02-23 12:23:59 -08:00 committed by Stephen Smalley
parent 2b69984b0c
commit f77021d720
1 changed files with 5 additions and 2 deletions
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7
libselinux/src/procattr.c
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@ -70,9 +70,9 @@ static int openattr(pid_t pid, const char *attr, int flags)
char *path;
pid_t tid;
if (pid > 0)
if (pid > 0) {
rc = asprintf(&path, "/proc/%d/attr/%s", pid, attr);
else {
} else if (pid == 0) {
rc = asprintf(&path, "/proc/thread-self/attr/%s", attr);
if (rc < 0)
return -1;
@ -82,6 +82,9 @@ static int openattr(pid_t pid, const char *attr, int flags)
free(path);
tid = gettid();
rc = asprintf(&path, "/proc/self/task/%d/attr/%s", tid, attr);
} else {
errno = EINVAL;
return -1;
}
if (rc < 0)
return -1;