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Date: Fri, 23 Jun 2017 14:38:46 -0400 (EDT) From: David Miller <davem@...emloft.net> To: richardcochran@...il.com Cc: netdev@...r.kernel.org, Manfred.Rudigier@...cron.at, stefan.sorensen@...ctralink.com Subject: Re: [PATCH net] net: dp83640: Avoid NULL pointer dereference. From: Richard Cochran <richardcochran@...il.com> Date: Fri, 23 Jun 2017 17:51:31 +0200 > The function, skb_complete_tx_timestamp(), used to allow passing in a > NULL pointer for the time stamps, but that was changed in commit > 62bccb8cdb69051b95a55ab0c489e3cab261c8ef ("net-timestamp: Make the > clone operation stand-alone from phy timestamping"), and the existing > call sites, all of which are in the dp83640 driver, were fixed up. > > Even though the kernel-doc was subsequently updated in commit > 7a76a021cd5a292be875fbc616daf03eab1e6996 ("net-timestamp: Update > skb_complete_tx_timestamp comment"), still a bug fix from Manfred > Rudigier came into the driver using the old semantics. Probably > Manfred derived that patch from an older kernel version. > > This fix should be applied to the stable trees as well. > > Fixes: 81e8f2e930fe ("net: dp83640: Fix tx timestamp overflow handling.") > Signed-off-by: Richard Cochran <richardcochran@...il.com> Applied and queued up for -stable, thank you.
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