This is a note to let you know that I've just added the patch titled
scsi: aacraid: Fix double-free on probe failure
to the 5.4-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-aacraid-fix-double-free-on-probe-failure.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit b6f6abe2fca350e3bafbc8732371e0d54569f585
Author: Ben Hutchings <benh@xxxxxxxxxx>
Date: Thu Aug 22 00:51:42 2024 +0200
scsi: aacraid: Fix double-free on probe failure
[ Upstream commit 919ddf8336f0b84c0453bac583808c9f165a85c2 ]
aac_probe_one() calls hardware-specific init functions through the
aac_driver_ident::init pointer, all of which eventually call down to
aac_init_adapter().
If aac_init_adapter() fails after allocating memory for aac_dev::queues,
it frees the memory but does not clear that member.
After the hardware-specific init function returns an error,
aac_probe_one() goes down an error path that frees the memory pointed to
by aac_dev::queues, resulting.in a double-free.
Reported-by: Michael Gordon <m.gordon.zelenoborsky@xxxxxxxxx>
Link: https://bugs.debian.org/1075855
Fixes: 8e0c5ebde82b ("[SCSI] aacraid: Newer adapter communication iterface support")
Signed-off-by: Ben Hutchings <benh@xxxxxxxxxx>
Link: https://lore.kernel.org/r/ZsZvfqlQMveoL5KQ@xxxxxxxxxxxxxxx
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index d4fcfa1e54e02..8849eca08a494 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -638,6 +638,7 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
if (aac_comm_init(dev)<0){
kfree(dev->queues);
+ dev->queues = NULL;
return NULL;
}
/*
@@ -645,6 +646,7 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
*/
if (aac_fib_setup(dev) < 0) {
kfree(dev->queues);
+ dev->queues = NULL;
return NULL;
}
