diff options
| author | Konstantin Belousov <kib@FreeBSD.org> | 2021-10-16 18:28:03 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2021-10-26 02:26:27 +0000 |
| commit | 84722e8171a0f5732eef9e817573000f93ea9bd8 (patch) | |
| tree | a476d8e786f80f58eaf94b7ff84083c37affbad6 | |
| parent | a89f144b0da250badd599e507977d8ee56e03d5b (diff) | |
sys_procctl(): zero the data buffer once, on syscall entry
(cherry picked from commit 32026f5983ed00e64829f8c20b09748077809729)
| -rw-r--r-- | sys/kern/kern_procctl.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/kern/kern_procctl.c b/sys/kern/kern_procctl.c index 7a88ef24d987..387706a0cb1e 100644 --- a/sys/kern/kern_procctl.c +++ b/sys/kern/kern_procctl.c @@ -171,7 +171,6 @@ reap_status(struct thread *td, struct proc *p, void *data) rs = data; sx_assert(&proctree_lock, SX_LOCKED); - bzero(rs, sizeof(*rs)); if ((p->p_treeflag & P_TREE_REAPER) == 0) { reap = p->p_reaper; } else { @@ -850,6 +849,8 @@ sys_procctl(struct thread *td, struct procctl_args *uap) if (uap->com == 0 || uap->com >= nitems(procctl_cmds_info)) return (EINVAL); cmd_info = &procctl_cmds_info[uap->com]; + bzero(&x, sizeof(x)); + if (cmd_info->copyin_sz > 0) { error = copyin(uap->data, &x, cmd_info->copyin_sz); if (error != 0) |