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| author | Sreekanth Reddy <sreekanth.reddy@broadcom.com> | 2022-09-06 19:19:08 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-15 12:17:05 +0200 |
| commit | 82efb917eeb27454dc4c6fe26432fc8f6c75bc16 (patch) | |
| tree | 77a37b3d233dc235d410a14361a93eae3a81605b | |
| parent | ebfb744bb6036485dac2a45c46e82b911c3726d1 (diff) | |
| download | linux-stable-82efb917eeb27454dc4c6fe26432fc8f6c75bc16.tar.gz linux-stable-82efb917eeb27454dc4c6fe26432fc8f6c75bc16.tar.bz2 linux-stable-82efb917eeb27454dc4c6fe26432fc8f6c75bc16.zip | |
scsi: mpt3sas: Fix use-after-free warning
commit 991df3dd5144f2e6b1c38b8d20ed3d4d21e20b34 upstream.
Fix the following use-after-free warning which is observed during
controller reset:
refcount_t: underflow; use-after-free.
WARNING: CPU: 23 PID: 5399 at lib/refcount.c:28 refcount_warn_saturate+0xa6/0xf0
Link: https://lore.kernel.org/r/20220906134908.1039-2-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_scsih.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index d899f216245e..c8d97dc2ca63 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -3215,6 +3215,7 @@ static struct fw_event_work *dequeue_next_fw_event(struct MPT3SAS_ADAPTER *ioc) fw_event = list_first_entry(&ioc->fw_event_list, struct fw_event_work, list); list_del_init(&fw_event->list); + fw_event_work_put(fw_event); } spin_unlock_irqrestore(&ioc->fw_event_lock, flags); @@ -3249,7 +3250,6 @@ _scsih_fw_event_cleanup_queue(struct MPT3SAS_ADAPTER *ioc) if (cancel_work_sync(&fw_event->work)) fw_event_work_put(fw_event); - fw_event_work_put(fw_event); } } |