This is a note to let you know that I've just added the patch titled
scsi: libsas: fix memory leak in sas_smp_get_phy_events()
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:
scsi-libsas-fix-memory-leak-in-sas_smp_get_phy_events.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 foo@baz Tue Apr 10 10:31:53 CEST 2018
From: Jason Yan <yanaijie@xxxxxxxxxx>
Date: Thu, 4 Jan 2018 21:04:31 +0800
Subject: scsi: libsas: fix memory leak in sas_smp_get_phy_events()
From: Jason Yan <yanaijie@xxxxxxxxxx>
[ Upstream commit 4a491b1ab11ca0556d2fda1ff1301e862a2d44c4 ]
We've got a memory leak with the following producer:
while true;
do cat /sys/class/sas_phy/phy-1:0:12/invalid_dword_count >/dev/null;
done
The buffer req is allocated and not freed after we return. Fix it.
Fixes: 2908d778ab3e ("[SCSI] aic94xx: new driver")
Signed-off-by: Jason Yan <yanaijie@xxxxxxxxxx>
CC: John Garry <john.garry@xxxxxxxxxx>
CC: chenqilin <chenqilin2@xxxxxxxxxx>
CC: chenxiang <chenxiang66@xxxxxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/libsas/sas_expander.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -684,6 +684,7 @@ int sas_smp_get_phy_events(struct sas_ph
phy->phy_reset_problem_count = scsi_to_u32(&resp[24]);
out:
+ kfree(req);
kfree(resp);
return res;
Patches currently in stable-queue which might be from yanaijie@xxxxxxxxxx are
queue-4.4/scsi-libsas-initialize-sas_phy-status-according-to-response-of-discover.patch
queue-4.4/scsi-libsas-fix-error-when-getting-phy-events.patch
queue-4.4/scsi-libsas-fix-memory-leak-in-sas_smp_get_phy_events.patch