diff options
| author | Ben Hutchings <benh@debian.org> | 2024-08-22 00:51:42 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-09-04 13:15:05 +0200 |
| commit | 564e1986b00c5f05d75342f8407f75f0a17b94df (patch) | |
| tree | 9573c0266ac89bd00a059c7f980770265a1cb61a | |
| parent | 9a2d4f736c6882a02d8c11c8797db97cf1d9ee58 (diff) | |
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@gmail.com>
Link: https://bugs.debian.org/1075855
Fixes: 8e0c5ebde82b ("[SCSI] aacraid: Newer adapter communication iterface support")
Signed-off-by: Ben Hutchings <benh@debian.org>
Link: https://lore.kernel.org/r/ZsZvfqlQMveoL5KQ@decadent.org.uk
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/scsi/aacraid/comminit.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index d4fcfa1e54e0..8849eca08a49 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; } |