Date: Fri, 25 Aug 2023 01:08:27 GMT From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 596c93a96ec8 - stable/13 - vmspace_fork(): do not override offset for the guard entries Message-ID: <202308250108.37P18RBh058058@gitrepo.freebsd.org>
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The branch stable/13 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=596c93a96ec82f7d1132030f9c86a7de27584458 commit 596c93a96ec82f7d1132030f9c86a7de27584458 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2023-07-20 17:45:01 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2023-08-25 01:06:43 +0000 vmspace_fork(): do not override offset for the guard entries (cherry picked from commit db6c7c7f8d870f377fcd1cc98e4832681bb5bdf0) --- sys/vm/vm_map.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sys/vm/vm_map.c b/sys/vm/vm_map.c index c8f3c72302fc..18763ad2f2bf 100644 --- a/sys/vm/vm_map.c +++ b/sys/vm/vm_map.c @@ -4178,7 +4178,8 @@ vm_map_copy_entry( src_entry->start); } else { dst_entry->object.vm_object = NULL; - dst_entry->offset = 0; + if ((dst_entry->eflags & MAP_ENTRY_GUARD) == 0) + dst_entry->offset = 0; if (src_entry->cred != NULL) { dst_entry->cred = curthread->td_ucred; crhold(dst_entry->cred);
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