Date: Fri, 06 Feb 2026 15:31:11 +0000 From: John Baldwin <jhb@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 06fd19b5349a - main - spibus: Don't leak KVA when freeing a mmap region Message-ID: <6986093f.18885.5a7e56d@gitrepo.freebsd.org>
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The branch main has been updated by jhb: URL: https://cgit.FreeBSD.org/src/commit/?id=06fd19b5349a1ff27ef338619fdade596986fc2f commit 06fd19b5349a1ff27ef338619fdade596986fc2f Author: John Baldwin <jhb@FreeBSD.org> AuthorDate: 2026-02-06 15:30:26 +0000 Commit: John Baldwin <jhb@FreeBSD.org> CommitDate: 2026-02-06 15:30:26 +0000 spibus: Don't leak KVA when freeing a mmap region Effort: CHERI upstreaming Sponsored by: AFRL, DARPA Differential Revision: https://reviews.freebsd.org/D54837 --- sys/dev/spibus/spigen.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/sys/dev/spibus/spigen.c b/sys/dev/spibus/spigen.c index 66c93e927281..39b94c6123fc 100644 --- a/sys/dev/spibus/spigen.c +++ b/sys/dev/spibus/spigen.c @@ -283,8 +283,10 @@ spigen_mmap_cleanup(void *arg) { struct spigen_mmap *mmap = arg; - if (mmap->kvaddr != 0) + if (mmap->kvaddr != 0) { pmap_qremove(mmap->kvaddr, mmap->bufsize / PAGE_SIZE); + kva_free(mmap->kvaddr, mmap->bufsize); + } if (mmap->bufobj != NULL) vm_object_deallocate(mmap->bufobj); free(mmap, M_DEVBUF);home | help
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