git: 59447a02f1a9 - stable/13 - kern_procctl: skip zombies for process group operations

[Konstantin Belousov]

The branch stable/13 has been updated by kib:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=59447a02f1a9083f37d8e1e0d75bbb76ccb669d6

commit 59447a02f1a9083f37d8e1e0d75bbb76ccb669d6
Author:     Konstantin Belousov <k...@freebsd.org>
AuthorDate: 2021-10-18 21:29:01 +0000
Commit:     Konstantin Belousov <k...@freebsd.org>
CommitDate: 2021-10-26 02:26:27 +0000

    kern_procctl: skip zombies for process group operations
    
    (cherry picked from commit 49db81aa053beb131ba9dbf5519a5f0eacf28265)
---
 sys/kern/kern_procctl.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sys/kern/kern_procctl.c b/sys/kern/kern_procctl.c
index 890a2e05bb27..00c68359f375 100644
--- a/sys/kern/kern_procctl.c
+++ b/sys/kern/kern_procctl.c
@@ -960,8 +960,10 @@ kern_procctl(struct thread *td, idtype_t idtype, id_t id, 
int com, void *data)
                first_error = 0;
                LIST_FOREACH(p, &pg->pg_members, p_pglist) {
                        PROC_LOCK(p);
-                       if (p->p_state == PRS_NEW || (cmd_info->need_candebug ?
-                           p_candebug(td, p) : p_cansee(td, p)) != 0) {
+                       if (p->p_state == PRS_NEW ||
+                           p->p_state == PRS_ZOMBIE ||
+                           (cmd_info->need_candebug ? p_candebug(td, p) :
+                           p_cansee(td, p)) != 0) {
                                PROC_UNLOCK(p);
                                continue;
                        }