On Sat, Sep 10, 2016 at 10:53:01AM -0400, Nicholas Krause wrote: > > > On September 10, 2016 4:15:05 AM EDT, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > >On Fri, Sep 09, 2016 at 01:08:36PM -0400, Nicholas Krause wrote: > >> > >> > >> On September 9, 2016 9:38:13 AM EDT, gregkh@xxxxxxxxxxxxxxxxxxx > >wrote: > >> > > >> >This is a note to let you know that I've just added the patch titled > >> > > >> > [PATCH 062/135] megaraid: Fix possible NULL pointer deference in > >> > > >> >to the 4.4-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: > >> > 0062-megaraid-Fix-possible-NULL-pointer-deference-in-mrai.patch > >> >and it can be found in the queue-4.4 subdirectory. > >> > > >> >If you, or anyone else, feels it should not be added to the stable > >> >tree, > >> >please let <stable@xxxxxxxxxxxxxxx> know about it. > >> > > >> > > >> >From 301709c17bc50faa7f2c77797e454f3286d8ba39 Mon Sep 17 00:00:00 > >2001 > >> >From: Nicholas Krause <xerofoify@xxxxxxxxx> > >> >Date: Tue, 5 Jan 2016 14:32:54 -0500 > >> >Subject: [PATCH 062/135] megaraid: Fix possible NULL pointer > >deference > >> >in > >> > mraid_mm_ioctl > >> > > >> >[ Upstream commit 7296f62f0322d808362b21064deb34f20799c20d ] > >> > > >> >This adds the needed check after the call to the function > >> >mraid_mm_alloc_kioc in order to make sure that this function has not > >> >returned NULL and therefore makes sure we do not deference a NULL > >> >pointer if one is returned by mraid_mm_alloc_kioc. Further more add > >> >needed comments explaining that this function call can return NULL > >if > >> >the list head is empty for the pointer passed in order to allow > >furture > >> >users to understand this required pointer check. > >> > > >> >Signed-off-by: Nicholas Krause <xerofoify@xxxxxxxxx> > >> >Acked-by: Sumit Saxena <sumit.saxena@xxxxxxxxxxxxx> > >> >Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> > >> >Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx> > >> >Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > >> >--- > >> > drivers/scsi/megaraid/megaraid_mm.c | 4 ++++ > >> > 1 file changed, 4 insertions(+) > >> > > >> >--- a/drivers/scsi/megaraid/megaraid_mm.c > >> >+++ b/drivers/scsi/megaraid/megaraid_mm.c > >> >@@ -179,8 +179,12 @@ mraid_mm_ioctl(struct file *filep, unsig > >> > > >> > /* > >> > * The following call will block till a kioc is available > >> >+ * or return NULL if the list head is empty for the pointer > >> >+ * of type mraid_mmapt passed to mraid_mm_alloc_kioc > >> > */ > >> > kioc = mraid_mm_alloc_kioc(adp); > >> >+ if (!kioc) > >> >+ return -ENXIO; > >> > > >> > /* > >> > * User sent the old mimd_t ioctl packet. Convert it to uioc_t. > >> > > >> > > >> >Patches currently in stable-queue which might be from > >> >xerofoify@xxxxxxxxx are > >> > > >> > >>queue-4.4/0062-megaraid-Fix-possible-NULL-pointer-deference-in-mrai.patch > >> I do not wish any of my work to > >> touch the stable kernel tree. > > > >Hahaha, sure, gladly deleted, too funny... > > > >greg k-h > On top of that please revert the regression fix. That is also my > work and therefore shouldn't be touching the stable tree either. What exactly are you referring to? -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html