[v2,0/4] hw/scsi/megasas: Avoid buffer overrun in megasas_handle_scsi()

Message

Philippe Mathieu-Daudé Dec. 1, 2020, 7:10 p.m. UTC

FWIW megasas is not use by KVM.

Not sure what is the proper fix, but at least we
have a reproducer.

Since v1:
- Fix assert() condition
- Extract reproducer in different patch for git-bisect (thuth)
- Add simpler reproducer from Alex
- Try better scsi error

Philippe Mathieu-Daudé (4):
  tests/qtest/fuzz-test: Quit test_lp1878642 once done
  hw/scsi/megasas: Assert cdb_len is valid in megasas_handle_scsi()
  tests/qtest/fuzz-test: Add test_megasas_cdb_len_zero() reproducer
  hw/scsi/megasas: Have incorrect cdb return MFI_STAT_ABORT_NOT_POSSIBLE

 hw/scsi/megasas.c       | 13 +++++++++++++
 tests/qtest/fuzz-test.c | 20 ++++++++++++++++++++
 2 files changed, 33 insertions(+)