Patch "staging: wilc1000: fix unchecked return value" has been added to the 4.9-stable tree
Subsystems (2)
This is a note to let you know that I've just added the patch titled
staging: wilc1000: fix unchecked return value
to the 4.9-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:
staging-wilc1000-fix-unchecked-return-value.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
Quoted 1 line
From foo@baz Thu Mar 22 14:40:23 CET 2018
From: Pan Bian <[email protected]>
Date: Sun, 23 Apr 2017 19:53:58 +0800
Subject: staging: wilc1000: fix unchecked return value
From: Pan Bian <[email protected]>
[ Upstream commit 9e96652756ad647b7bcc03cb99ffc9756d7b5f93 ]
Function dev_alloc_skb() will return a NULL pointer if there is no enough memory. However, in function WILC_WFI_mon_xmit(), its return value is used without validation. This may result in a bad memory access bug. This patch fixes the bug.
--- drivers/staging/wilc1000/linux_mon.c | 2 ++ 1 file changed, 2 insertions(+)
drivers/staging/wilc1000/linux_mon.c +2 -0
@@ -197,6 +197,8 @@ static netdev_tx_t WILC_WFI_mon_xmit(strif (skb->data[0 ] ==0xc0 && (!(memcmp (broadcast, &skb->data[4 ],6 )))) { skb2 =dev_alloc_skb (skb->len +sizeof (struct wilc_wfi_radiotap_cb_hdr )); +if (!skb2) +return -ENOMEM ;memcpy (skb_put (skb2, skb->len), skb->data, skb->len);
Patches currently in stable-queue which might be from [email protected] are
queue-4.9/tipc-check-return-value-of-nlmsg_new.patch queue-4.9/mt7601u-check-return-value-of-alloc_skb.patch queue-4.9/rndis_wlan-add-return-value-validation.patch queue-4.9/libertas-check-return-value-of-alloc_workqueue.patch queue-4.9/staging-wilc1000-fix-unchecked-return-value.patch queue-4.9/qlcnic-fix-unchecked-return-value.patch queue-4.9/wan-pc300too-abort-path-on-failure.patch queue-4.9/power-supply-isp1704-fix-unchecked-return-value-of-devm_kzalloc.patch