The branch main has been updated by kib:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=89fa97f0a71d4988891766c4e69eeb9687016b14

commit 89fa97f0a71d4988891766c4e69eeb9687016b14
Author:     Konstantin Belousov <[email protected]>
AuthorDate: 2026-06-09 21:33:56 +0000
Commit:     Konstantin Belousov <[email protected]>
CommitDate: 2026-06-10 02:37:25 +0000

    compat32 wait4/6(2): only copy out when there is a pid to report
    
    PR:     295965
    Reported and tested by: mandree
    Reviewed by:    markj
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
    Differential revision:  https://reviews.freebsd.org/D57513
---
 sys/compat/freebsd32/freebsd32_misc.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/sys/compat/freebsd32/freebsd32_misc.c 
b/sys/compat/freebsd32/freebsd32_misc.c
index a0b6118900ed..e4a4f256feb4 100644
--- a/sys/compat/freebsd32/freebsd32_misc.c
+++ b/sys/compat/freebsd32/freebsd32_misc.c
@@ -234,11 +234,9 @@ freebsd32_wait4(struct thread *td, struct 
freebsd32_wait4_args *uap)
        else
                rup = NULL;
        error = kern_wait(td, uap->pid, &status, uap->options, rup);
-       if (error)
-               return (error);
-       if (uap->status != NULL)
+       if (uap->status != NULL && error == 0 && td->td_retval[0] != 0)
                error = copyout(&status, uap->status, sizeof(status));
-       if (uap->rusage != NULL && error == 0) {
+       if (uap->rusage != NULL && error == 0 && td->td_retval[0] != 0) {
                freebsd32_rusage_out(&ru, &ru32);
                error = copyout(&ru32, uap->rusage, sizeof(ru32));
        }
@@ -265,11 +263,9 @@ freebsd32_wait6(struct thread *td, struct 
freebsd32_wait6_args *uap)
                sip = NULL;
        error = kern_wait6(td, uap->idtype, PAIR32TO64(id_t, uap->id),
            &status, uap->options, wrup, sip);
-       if (error != 0)
-               return (error);
-       if (uap->status != NULL)
+       if (uap->status != NULL && error == 0 && td->td_retval[0] != 0)
                error = copyout(&status, uap->status, sizeof(status));
-       if (uap->wrusage != NULL && error == 0) {
+       if (uap->wrusage != NULL && error == 0 && td->td_retval[0] != 0) {
                freebsd32_rusage_out(&wru.wru_self, &wru32.wru_self);
                freebsd32_rusage_out(&wru.wru_children, &wru32.wru_children);
                error = copyout(&wru32, uap->wrusage, sizeof(wru32));

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