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[BugFix][HWASAN] stack-buffer-overflow

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Test: hwasan

Change-Id: I95be4202a35d1f4876b382350a6f1fdd64d2548c
Signed-off-by: chenguanyou <chenguanyou@xiaomi.com>
This commit is contained in:
chenguanyou
2021-03-09 17:17:43 +08:00
parent 36f5f53a61
commit 086293c5c2
1 changed files with 6 additions and 2 deletions
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8
core/jni/android_util_Process.cpp
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@@ -262,8 +262,12 @@ void android_os_Process_setProcessGroup(JNIEnv* env, jobject clazz, int pid, jin
sprintf(proc_path, "/proc/%d/cmdline", pid);
fd = open(proc_path, O_RDONLY | O_CLOEXEC);
if (fd >= 0) {
int rc = read(fd, cmdline, sizeof(cmdline)-1);
cmdline[rc] = 0;
ssize_t rc = read(fd, cmdline, sizeof(cmdline) - 1);
if (rc < 0) {
ALOGE("read /proc/%d/cmdline (%s)", pid, strerror(errno));
} else {
cmdline[rc] = 0;
}
close(fd);
}