3.4-stable review patch. If anyone has any objections, please let me know.
------------------ From: Sasha Levin <[email protected]> commit 5fcb08befaf57faa1b00e514915c1660252b8c26 upstream. The BUG_ON() in pack_sg_list() would get triggered only one time after we've corrupted some memory by sg_set_buf() into an invalid sg buffer. I'm still working on figuring out why I manage to trigger that bug... Signed-off-by: Sasha Levin <[email protected]> Signed-off-by: Eric Van Hensbergen <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- net/9p/trans_virtio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/net/9p/trans_virtio.c +++ b/net/9p/trans_virtio.c @@ -192,10 +192,10 @@ static int pack_sg_list(struct scatterli s = rest_of_page(data); if (s > count) s = count; + BUG_ON(index > limit); sg_set_buf(&sg[index++], data, s); count -= s; data += s; - BUG_ON(index > limit); } return index-start; -- 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
