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| author | Ben Hutchings <benh@debian.org> | 2024-08-22 00:51:42 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2024-08-23 03:04:12 +0200 |
| commit | 919ddf8336f0b84c0453bac583808c9f165a85c2 (patch) | |
| tree | b5da72a486360a3028078dbb5a3945c9c9122d68 /drivers/scsi | |
| parent | scsi: lpfc: Fix overflow build issue (diff) | |
| download | linux-919ddf8336f0b84c0453bac583808c9f165a85c2.tar.xz linux-919ddf8336f0b84c0453bac583808c9f165a85c2.zip | |
scsi: aacraid: Fix double-free on probe failure
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>
Diffstat (limited to 'drivers/scsi')
| -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 bd99c5492b7d..0f64b0244303 100644 --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -642,6 +642,7 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev) if (aac_comm_init(dev)<0){ kfree(dev->queues); + dev->queues = NULL; return NULL; } /* @@ -649,6 +650,7 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev) */ if (aac_fib_setup(dev) < 0) { kfree(dev->queues); + dev->queues = NULL; return NULL; } |