Date: Sat, 25 Nov 2017 14:47:25 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r326188 - stable/11/sys/vm Message-ID: <201711251447.vAPElPnd068069@repo.freebsd.org>
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Author: kib Date: Sat Nov 25 14:47:24 2017 New Revision: 326188 URL: https://svnweb.freebsd.org/changeset/base/326188 Log: MFC r326098: Return different error code for the guard page layout violation. PR: 223732 Modified: stable/11/sys/vm/vm_map.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/vm/vm_map.c ============================================================================== --- stable/11/sys/vm/vm_map.c Sat Nov 25 09:47:31 2017 (r326187) +++ stable/11/sys/vm/vm_map.c Sat Nov 25 14:47:24 2017 (r326188) @@ -3610,12 +3610,13 @@ vm_map_stack_locked(vm_map_t map, vm_offset_t addrbos, KASSERT(orient != (MAP_STACK_GROWS_DOWN | MAP_STACK_GROWS_UP), ("bi-dir stack")); - sgp = (vm_size_t)stack_guard_page * PAGE_SIZE; if (addrbos < vm_map_min(map) || - addrbos > vm_map_max(map) || - addrbos + max_ssize < addrbos || - sgp >= max_ssize) - return (KERN_NO_SPACE); + addrbos + max_ssize > vm_map_max(map) || + addrbos + max_ssize <= addrbos) + return (KERN_INVALID_ADDRESS); + sgp = (vm_size_t)stack_guard_page * PAGE_SIZE; + if (sgp >= max_ssize) + return (KERN_INVALID_ARGUMENT); init_ssize = growsize; if (max_ssize < init_ssize + sgp)
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