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| author | Joerg Dorchain <joerg@dorchain.net> | 2007-03-06 02:46:54 -0800 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-03-11 10:58:49 -0500 |
| commit | bb9ba31ca3b88fd396e38950d1caedf2f83521c6 (patch) | |
| tree | 18981413f6395e915395e862fc3b3436adea2b88 /drivers/scsi/constants.c | |
| parent | ba76ef246090601b783c1e6190e22b8b149a105f (diff) | |
| download | blackbird-op-linux-bb9ba31ca3b88fd396e38950d1caedf2f83521c6.tar.gz blackbird-op-linux-bb9ba31ca3b88fd396e38950d1caedf2f83521c6.zip | |
[SCSI] gdth: fix oops in gdth_copy_cmd()
Recent alterations to the gdth_fill_raw_cmd() path no longer set the
sg_ranz field for zero transfer commands. However, this field is used
lower down in the function to initialise ha->cmd_len to the size of
the firmware packet. If this uninitialised field contains a bogus
value, ha->cmd_len can become much larger than the actual firmware
packet and end up oopsing in gdth_copy_cmd() as it tries to copy this
huge packet to the device (usually because it runs into an unallocated
page).
The fix is to initialise the sg_ranz field to zero at the start of
gdth_fill_raw_cmd().
Signed-off-by: Joerg Dorchain <joerg@dorchain.net>
Acked-by: "Leubner, Achim" <Achim_Leubner@adaptec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/constants.c')
0 files changed, 0 insertions, 0 deletions
