Messages in this thread Patch in this message | | | Date | Mon, 06 May 2013 23:58:44 -0400 | From | Steven Rostedt <> | Subject | [092/126] aio: fix possible invalid memory access when DEBUG is enabled |
| |
3.6.11.3 stable review patch. If anyone has any objections, please let me know.
------------------
From: Zhao Hongjiang <zhaohongjiang@huawei.com>
[ Upstream commit 91d80a84bbc8f28375cca7e65ec666577b4209ad ]
dprintk() shouldn't access @ring after it's unmapped.
Signed-off-by: Zhao Hongjiang <zhaohongjiang@huawei.com> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> --- 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
| |