git: 9b48646ab366 - main - kern_fork: guard against NULL newproc on the failure path

The branch main has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=9b48646ab366dcf6089fac653eef963331aa1169

commit 9b48646ab366dcf6089fac653eef963331aa1169
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2026-06-10 10:29:05 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2026-06-10 11:37:23 +0000

    kern_fork: guard against NULL newproc on the failure path
    
    Reported and tested by: pho
    Fixes:  85a65e393092 ("proc: add tree ref count")
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
---
 sys/kern/kern_fork.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c
index 5318a737ea35..26e2510698e2 100644
--- a/sys/kern/kern_fork.c
+++ b/sys/kern/kern_fork.c
@@ -1132,7 +1132,8 @@ fail1:
 fail2:
 	if (vm2 != NULL)
 		vmspace_free(vm2);
-	PROC_TREE_UNREF(newproc);
+	if (newproc != NULL)
+		PROC_TREE_UNREF(newproc);
 	if ((flags & RFPROCDESC) != 0 && fp_procdesc != NULL) {
 		fdclose(td, fp_procdesc, *fr->fr_pd_fd);
 		fdrop(fp_procdesc, td);