kern_fork: guard against NULL newproc on the failure path

Reported and tested by:	pho
Fixes:	85a65e3930 ("proc: add tree ref count")
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week

This commit is contained in:

Konstantin Belousov

2026-06-10 13:29:05 +03:00

parent 89fa97f0a7

commit 9b48646ab3

1 changed files with 2 additions and 1 deletions

									
										sys/kern/kern_fork.c
									
		+2
		-1
	
												View File
												
				@@ -1132,7 +1132,8 @@ fork1(struct thread *td, struct fork_req *fr)

				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);