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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-09-15 23:07:45 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-09-24 23:17:23 -0700 |
| commit | f3bb467ff64b2598d023b3a07592748fa7768b6a (patch) | |
| tree | 2c961b5c54a31d3bfc267f7308b2c32c26fd786e /drivers/target | |
| parent | eeeb9522231118138be418ff527dc8c9050f4707 (diff) | |
| download | linux-stable-f3bb467ff64b2598d023b3a07592748fa7768b6a.tar.gz linux-stable-f3bb467ff64b2598d023b3a07592748fa7768b6a.tar.bz2 linux-stable-f3bb467ff64b2598d023b3a07592748fa7768b6a.zip | |
target: Fix target_sense_desc_format NULL pointer dereference
This patch allows target_sense_desc_format() to be called without a
valid se_device pointer, which can occur during an early exception
ahead of transport_lookup_cmd_lun() setting up se_cmd->se_device.
This addresses a v4.3-rc1 specific NULL pointer dereference
regression introduced by commit 4e4937e8.
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/target_core_hba.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/target/target_core_hba.c b/drivers/target/target_core_hba.c index 9522960c7fdd..22390e0e046c 100644 --- a/drivers/target/target_core_hba.c +++ b/drivers/target/target_core_hba.c @@ -187,5 +187,5 @@ core_delete_hba(struct se_hba *hba) bool target_sense_desc_format(struct se_device *dev) { - return dev->transport->get_blocks(dev) > U32_MAX; + return (dev) ? dev->transport->get_blocks(dev) > U32_MAX : false; } |