From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-Id: <20130507035856.347201060@goodmis.org> Date: Mon, 06 May 2013 23:58:44 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Zhao Hongjiang Subject: [092/126] aio: fix possible invalid memory access when DEBUG is enabled References: <20130507035712.909872333@goodmis.org> Content-Disposition: inline; filename=0092-aio-fix-possible-invalid-memory-access-when-DEBUG-is.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.6.11.3 stable review patch. If anyone has any objections, please let me know. ------------------ From: Zhao Hongjiang [ Upstream commit 91d80a84bbc8f28375cca7e65ec666577b4209ad ] dprintk() shouldn't access @ring after it's unmapped. Signed-off-by: Zhao Hongjiang Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds Signed-off-by: Steven Rostedt --- fs/aio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/aio.c b/fs/aio.c index 71f613c..ed762ae 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -1027,9 +1027,9 @@ static int aio_read_evt(struct kioctx *ioctx, struct io_event *ent) spin_unlock(&info->ring_lock); out: - kunmap_atomic(ring); dprintk("leaving aio_read_evt: %d h%lu t%lu\n", ret, (unsigned long)ring->head, (unsigned long)ring->tail); + kunmap_atomic(ring); return ret; } -- 1.7.10.4