From: Robert Love <robert.w.love@intel.com>
To: James.Bottomley@suse.de, linux-scsi@vger.kernel.org
Cc: Hugh Daschbach <hdasch@broadcom.com>,
Robert Love <robert.w.love@intel.com>
Subject: [PATCH 3/9] libfc: Don't assume response request present.
Date: Tue, 16 Feb 2010 12:15:28 -0800 [thread overview]
Message-ID: <20100216201528.26581.20319.stgit@localhost.localdomain> (raw)
In-Reply-To: <20100216201513.26581.83756.stgit@localhost.localdomain>
From: Hugh Daschbach <hdasch@broadcom.com>
Fix NULL pointer dereference crash occurs in fc_lport_bsg_request()
for bsg requests that do not contain a response request.
Specifically, FC_BSG_HST_ADD_RPORT and FC_BSG_HST_DEL_RPORT bsg
requests are not guaranteed to include a response request.
Signed-off-by: Hugh Daschbach <hdasch@broadcom.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
drivers/scsi/libfc/fc_lport.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index 0b16502..7ec8ce7 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -1800,7 +1800,8 @@ int fc_lport_bsg_request(struct fc_bsg_job *job)
u32 did;
job->reply->reply_payload_rcv_len = 0;
- rsp->resid_len = job->reply_payload.payload_len;
+ if (rsp)
+ rsp->resid_len = job->reply_payload.payload_len;
mutex_lock(&lport->lp_mutex);
next prev parent reply other threads:[~2010-02-16 20:15 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-16 20:15 [PATCH 0/9] Updates to libfc, libfcoe, fcoe and fnic Robert Love
2010-02-16 20:15 ` [PATCH 1/9] libfc: call ddp setup for only FCP reads to avoid accessing junk fsp pointer Robert Love
2010-02-16 20:15 ` [PATCH 2/9] libfc: Fix e_d_tov ns -> ms scaling factor in PLOGI response Robert Love
2010-02-16 20:15 ` Robert Love [this message]
2010-02-16 20:15 ` [PATCH 4/9] libfcoe: Send port LKA every FIP_VN_KA_PERIOD secs Robert Love
2010-02-16 20:15 ` [PATCH 5/9] fcoe: Only rmmod fcoe.ko if there are no active connections Robert Love
2010-02-16 20:15 ` [PATCH 6/9] fnic: Allow multicast and unicast address registrations for fnic Robert Love
2010-02-16 20:15 ` [PATCH 7/9] fnic: lport stats need to be initialized in fnic_probe() Robert Love
2010-02-16 20:15 ` [PATCH 8/9] fnic: Set fnic driver version Robert Love
2010-02-16 20:16 ` [PATCH 9/9] MAINTAINERS: Adding FCoE information to the MAINTAINERS file Robert Love
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