Search Linux Wireless

Re: [PATCH] mt76: fix memcpy to potential null pointer on failed allocation

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 2017-12-14 11:13, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> 
> Currently if the allocation of skb fails and returns NULL then the
> call to skb_put will cause a null pointer dereference. Fix this by
> checking for a null skb and returning NULL.  Note that calls to
> function mt76x2_mcu_msg_alloc don't directly check the null return
> but instead pass the NULL pointer to mt76x2_mcu_msg_send which
> checks for the NULL and returns ENOMEM in this case.
> 
> Detected by CoverityScan, CID#1462624 ("Dereference null return value")
> 
> Fixes: 7bc04215a66b ("mt76: add driver code for MT76x2e")
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
Acked-by: Felix Fietkau <nbd@xxxxxxxx>



[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Wireless Personal Area Network]     [Linux Bluetooth]     [Wireless Regulations]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite Hiking]     [MIPS Linux]     [ARM Linux]     [Linux RAID]

  Powered by Linux