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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2011-11-15 23:59:00 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-12-21 12:58:29 -0800 |
| commit | 43dd6e6faffcacc6d8d9d12f15d6aa5f2f4fa351 (patch) | |
| tree | 617a22e736a737abeb979aaf202cf7ba99f9c159 /drivers/target/target_core_transport.c | |
| parent | 1c9c1ada7ee0b4b42e451d35153dff3735b28cac (diff) | |
iscsi-target: Fix residual count hanlding + remove iscsi_cmd->residual_count
commit 7e46cf02687e40197ae07c623e660be2a2720064 upstream.
This patch fixes iscsi-target handling of underflow where residual data is
causing an OOPs by using the incorrect iscsi_cmd_t->data_length initially
assigned in iscsit_allocate_se_cmd(). It resets iscsi_cmd_t->data_length
from se_cmd_t->data_length after transport_generic_allocate_tasks()
has been invoked in iscsit_handle_scsi_cmd() RX context, and converts
iscsi_cmd->residual_count usage to access iscsi_cmd->se_cmd.residual_count
to get the proper residual count set by target-core.
Reported-by: <lists@internyc.net>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/target/target_core_transport.c')
0 files changed, 0 insertions, 0 deletions