scsi-disk: do not complete canceled UNMAP requests
Canceled requests should never be completed, and doing that could cause accesses to a NULL hba_private field. Cc: qemu-stable@nongnu.org Reported-by: Stefan Priebe <s.priebe@profihost.ag> Tested-by: Stefan Priebe <s.priebe@profihost.ag> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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@ -1478,13 +1478,17 @@ static void scsi_unmap_complete(void *opaque, int ret)
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uint32_t nb_sectors;
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uint32_t nb_sectors;
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r->req.aiocb = NULL;
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r->req.aiocb = NULL;
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if (r->req.io_canceled) {
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goto done;
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}
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if (ret < 0) {
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if (ret < 0) {
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if (scsi_handle_rw_error(r, -ret)) {
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if (scsi_handle_rw_error(r, -ret)) {
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goto done;
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goto done;
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}
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}
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}
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}
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if (data->count > 0 && !r->req.io_canceled) {
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if (data->count > 0) {
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sector_num = ldq_be_p(&data->inbuf[0]);
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sector_num = ldq_be_p(&data->inbuf[0]);
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nb_sectors = ldl_be_p(&data->inbuf[8]) & 0xffffffffULL;
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nb_sectors = ldl_be_p(&data->inbuf[8]) & 0xffffffffULL;
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if (!check_lba_range(s, sector_num, nb_sectors)) {
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if (!check_lba_range(s, sector_num, nb_sectors)) {
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@ -1501,10 +1505,9 @@ static void scsi_unmap_complete(void *opaque, int ret)
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return;
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return;
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}
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}
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scsi_req_complete(&r->req, GOOD);
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done:
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done:
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if (data->count == 0) {
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scsi_req_complete(&r->req, GOOD);
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}
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if (!r->req.io_canceled) {
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if (!r->req.io_canceled) {
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scsi_req_unref(&r->req);
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scsi_req_unref(&r->req);
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}
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}
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