Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-16 17:12:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

wil6210: fix kernel OOPS when stopping interface during Rx traffic

Browse Source 
When network interface is stopping, some resources may
be already released by the network stack, and Rx frames
cause kernel OOPS (observed one is in netfilter code)

Proper solution is to drop packets pending in reorder buffer.

Signed-off-by: Hamad Kadmany <qca_hkadmany@qca.qualcomm.com>
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Hamad Kadmany 2015-12-16 17:51:45 +02:00 committed by Kalle Valo
parent e33a99e227
commit dea16eddb4
1 changed files with 11 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/net/wireless/ath/wil6210/rx_reorder.c
View File

@ -261,9 +261,19 @@ struct wil_tid_ampdu_rx *wil_tid_ampdu_rx_alloc(struct wil6210_priv *wil,
void wil_tid_ampdu_rx_free(struct wil6210_priv *wil,
struct wil_tid_ampdu_rx *r)
{
int i;
if (!r)
return;
wil_release_reorder_frames(wil, r, r->head_seq_num + r->buf_size);
/* Do not pass remaining frames to the network stack - it may be
* not expecting to get any more Rx. Rx from here may lead to
* kernel OOPS since some per-socket accounting info was already
* released.
*/
for (i = 0; i < r->buf_size; i++)
kfree_skb(r->reorder_buf[i]);
kfree(r->reorder_buf);
kfree(r->reorder_time);
kfree(r);