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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-02-27 03:54:13 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-26 15:01:01 +0100 |
| commit | 3bb09afbcef61767194ef3792755e38265915cd9 (patch) | |
| tree | 5ecc60adfee1f692b1db15e584643fbfd1e29abc | |
| parent | 2078161617e32d457414cd9accabe33909142b90 (diff) | |
| download | linux-stable-3bb09afbcef61767194ef3792755e38265915cd9.tar.gz linux-stable-3bb09afbcef61767194ef3792755e38265915cd9.tar.bz2 linux-stable-3bb09afbcef61767194ef3792755e38265915cd9.zip | |
target/pscsi: Fix NULL pointer dereference in get_device_type
commit 215a8fe4198f607f34ecdbc9969dae783d8b5a61 upstream.
This patch fixes a NULL pointer dereference OOPs with pSCSI backends
within target_core_stat.c code. The bug is caused by a configfs attr
read if no pscsi_dev_virt->pdv_sd has been configured.
Reported-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/target/target_core_pscsi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 3250ba2594e0..b1e77ff9a636 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -1112,7 +1112,7 @@ static u32 pscsi_get_device_type(struct se_device *dev) struct pscsi_dev_virt *pdv = PSCSI_DEV(dev); struct scsi_device *sd = pdv->pdv_sd; - return sd->type; + return (sd) ? sd->type : TYPE_NO_LUN; } static sector_t pscsi_get_blocks(struct se_device *dev) |