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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2017-08-04 11:17:33 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-08-25 05:29:01 +0300 |
| commit | 59e3da58705b3d86f45c68b639a6e9f22341bd11 (patch) | |
| tree | a380df8798bcb8b8719c7bbf0c32b472f117994f /drivers/scsi/osst.c | |
| parent | 32690e0b5601f95610f0254202ad2321900ac726 (diff) | |
| download | linux-59e3da58705b3d86f45c68b639a6e9f22341bd11.tar.xz | |
scsi: osst: silence underflow warning in osst_verify_frame()
The code looks like this:
i = ntohl(aux->filemark_cnt);
if (STp->header_cache != NULL && i < OS_FM_TAB_MAX && (i > STp->filemark_cnt ||
STp->first_frame_position - 1 != ntohl(STp->header_cache->dat_fm_tab.fm_tab_ent[i]))) {
If i is negative then it's less than OS_FM_TAB_MAX so we read before
the start of the STp->header_cache->dat_fm_tab.fm_tab_ent[] array.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/osst.c')
| -rw-r--r-- | drivers/scsi/osst.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c index 241908aca468..20ec1c01dbd5 100644 --- a/drivers/scsi/osst.c +++ b/drivers/scsi/osst.c @@ -619,7 +619,7 @@ static int osst_verify_frame(struct osst_tape * STp, int frame_seq_number, int q os_aux_t * aux = STp->buffer->aux; os_partition_t * par = &(aux->partition); struct st_partstat * STps = &(STp->ps[STp->partition]); - int blk_cnt, blk_sz, i; + unsigned int blk_cnt, blk_sz, i; if (STp->raw) { if (STp->buffer->syscall_result) { |