| Message ID | tencent_3BB950D6D2D470976F55FC879206DE0B9A09@qq.com |
|---|---|
| State | New |
| Headers | show |
| Series | scsi:bfa: Double-free vulnerability fix | expand |
diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index a719a18f0fbc..c21210064fbd 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -706,6 +706,7 @@ bfad_im_probe(struct bfad_s *bfad) if (bfad_thread_workq(bfad) != BFA_STATUS_OK) { kfree(im); + bfad->im = NULL; return BFA_STATUS_FAILED; }
In the QLogic BR-series Fibre Channel driver (bfad), there exists a double-free vulnerability. When the bfad_im_probe() function fails during initialization, the memory pointed to by bfad->im is freed without setting bfad->im to NULL. Subsequently, during driver uninstallation, when the state machine enters the bfad_sm_stopping state and calls the bfad_im_probe_undo() function, it attempts to free the memory pointed to by bfad->im again, thereby triggering a double-free vulnerability. Signed-off-by: jackysliu <1972843537@qq.com> --- drivers/scsi/bfa/bfad_im.c | 1 + 1 file changed, 1 insertion(+)