diff options
| author | James Smart <jsmart2021@gmail.com> | 2021-07-07 21:43:42 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-07-19 05:30:36 +0300 |
| commit | affbe24429410fddf4e50ca456c090ed6d8e05bf (patch) | |
| tree | 59a82ab4ce7db4a23dd81ed3c167b9f43c7af187 | |
| parent | e78c006f4c888231cdabb8a4286ba17980a903fa (diff) | |
| download | linux-affbe24429410fddf4e50ca456c090ed6d8e05bf.tar.xz | |
scsi: lpfc: Fix KASAN slab-out-of-bounds in lpfc_unreg_rpi() routine
In lpfc_offline_prep() an RPI is freed and nlp_rpi set to 0xFFFF before
calling lpfc_unreg_rpi(). Unfortunately, lpfc_unreg_rpi() uses nlp_rpi to
index the sli4_hba.rpi_ids[] array.
In lpfc_offline_prep(), unreg rpi before freeing the rpi.
Link: https://lore.kernel.org/r/20210707184351.67872-12-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_init.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 9427bfe856f6..55f720ac6c8c 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -3541,6 +3541,8 @@ lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) spin_lock_irq(&ndlp->lock); ndlp->nlp_flag &= ~NLP_NPR_ADISC; spin_unlock_irq(&ndlp->lock); + + lpfc_unreg_rpi(vports[i], ndlp); /* * Whenever an SLI4 port goes offline, free the * RPI. Get a new RPI when the adapter port @@ -3556,7 +3558,6 @@ lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; } - lpfc_unreg_rpi(vports[i], ndlp); if (ndlp->nlp_type & NLP_FABRIC) { lpfc_disc_state_machine(vports[i], ndlp, |