This is a note to let you know that I've just added the patch titled
iw_cxgb4: remove the stid on listen create failure
to the 4.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
iw_cxgb4-remove-the-stid-on-listen-create-failure.patch
and it can be found in the queue-4.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 8b1bbf36b7452c4acb20e91948eaa5e225ea6978 Mon Sep 17 00:00:00 2001
From: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 5 Sep 2017 11:52:34 -0700
Subject: iw_cxgb4: remove the stid on listen create failure
From: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>
commit 8b1bbf36b7452c4acb20e91948eaa5e225ea6978 upstream.
If a listen create fails, then the server tid (stid) is incorrectly left
in the stid idr table, which can cause a touch-after-free if the stid
is looked up and the already freed endpoint is touched. So make sure
and remove it in the error path.
Signed-off-by: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Doug Ledford <dledford@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/infiniband/hw/cxgb4/cm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -3463,7 +3463,7 @@ int c4iw_create_listen(struct iw_cm_id *
cm_id->provider_data = ep;
goto out;
}
-
+ remove_handle(ep->com.dev, &ep->com.dev->stid_idr, ep->stid);
cxgb4_free_stid(ep->com.dev->rdev.lldi.tids, ep->stid,
ep->com.local_addr.ss_family);
fail2:
Patches currently in stable-queue which might be from swise@xxxxxxxxxxxxxxxxxxxxx are
queue-4.13/iw_cxgb4-drop-listen-destroy-replies-if-no-ep-found.patch
queue-4.13/iw_cxgb4-put-ep-reference-in-pass_accept_req.patch
queue-4.13/iw_cxgb4-remove-the-stid-on-listen-create-failure.patch