Date: Tue, 29 Jul 2025 12:49:16 GMT From: Mark Johnston <markj@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 1392b97d0388 - stable/14 - kasan: Use kasan_md_unsupported() to check for invalid addresses Message-ID: <202507291249.56TCnG06033734@gitrepo.freebsd.org>
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The branch stable/14 has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=1392b97d03883e53cf2b92c6c896a9a1ce6f4f04 commit 1392b97d03883e53cf2b92c6c896a9a1ce6f4f04 Author: Mark Johnston <markj@FreeBSD.org> AuthorDate: 2025-07-15 00:31:10 +0000 Commit: Mark Johnston <markj@FreeBSD.org> CommitDate: 2025-07-29 12:08:46 +0000 kasan: Use kasan_md_unsupported() to check for invalid addresses The subsequent assert verifies that the address is in the kernel map anyway, and this removes uses of the MD DMAP_*_ADDRESS constants from MI code. This fixes the amd64 KASAN build after commit 4dd828c80828 ("amd64: add kva_layout"). MFC after: 2 weeks (cherry picked from commit 1f683624df878b2e4c0187137640bf2e6662c36f) --- sys/kern/subr_asan.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/sys/kern/subr_asan.c b/sys/kern/subr_asan.c index 0edb631d1475..464efda1e91a 100644 --- a/sys/kern/subr_asan.c +++ b/sys/kern/subr_asan.c @@ -263,8 +263,7 @@ kasan_mark(const void *addr, size_t size, size_t redzsize, uint8_t code) if (__predict_false(!kasan_enabled)) return; - if ((vm_offset_t)addr >= DMAP_MIN_ADDRESS && - (vm_offset_t)addr < DMAP_MAX_ADDRESS) + if (kasan_md_unsupported((vm_offset_t)addr)) return; KASSERT((vm_offset_t)addr >= VM_MIN_KERNEL_ADDRESS &&
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