commit: 91d80a84bbc8f28375cca7e65ec666577b4209ad From: Zhao Hongjiang <[email protected]> Date: Fri, 26 Apr 2013 11:03:53 +0800 Subject: aio: fix possible invalid memory access when DEBUG is enabled
dprintk() shouldn't access @ring after it's unmapped. Signed-off-by: Zhao Hongjiang <[email protected]> Cc: [email protected] Signed-off-by: Linus Torvalds <[email protected]> --- fs/aio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/aio.c b/fs/aio.c index 3f941f2..1dc8786 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -1029,9 +1029,9 @@ 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 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
