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| author | Pan Bian <bianpan2016@163.com> | 2019-11-05 17:25:27 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-23 08:21:38 +0100 |
| commit | e3c9310b6655611b1b3bddd57106b8dcd396b844 (patch) | |
| tree | 0391edf3654f873dd1680f7b44bc83703a77753f | |
| parent | 097f5dfc96ce8ce27d91ae5af6fc8ea45b62b501 (diff) | |
| download | linux-stable-e3c9310b6655611b1b3bddd57106b8dcd396b844.tar.gz linux-stable-e3c9310b6655611b1b3bddd57106b8dcd396b844.tar.bz2 linux-stable-e3c9310b6655611b1b3bddd57106b8dcd396b844.zip | |
scsi: qla4xxx: fix double free bug
commit 3fe3d2428b62822b7b030577cd612790bdd8c941 upstream.
The variable init_fw_cb is released twice, resulting in a double free
bug. The call to the function dma_free_coherent() before goto is removed to
get rid of potential double free.
Fixes: 2a49a78ed3c8 ("[SCSI] qla4xxx: added IPv6 support.")
Link: https://lore.kernel.org/r/1572945927-27796-1-git-send-email-bianpan2016@163.com
Signed-off-by: Pan Bian <bianpan2016@163.com>
Acked-by: Manish Rangankar <mrangankar@marvell.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/qla4xxx/ql4_mbx.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index 5d56904687b9..c81de7732359 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -640,9 +640,6 @@ int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha) if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) != QLA_SUCCESS) { - dma_free_coherent(&ha->pdev->dev, - sizeof(struct addr_ctrl_blk), - init_fw_cb, init_fw_cb_dma); goto exit_init_fw_cb; } |