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Currently a use-after-free may occur if a sas_task is aborted by the upper layer before we handle the I/O completion in mpi_ssp_completion() or mpi_sata_completion(). In this case, the following are the two steps in handling those I/O completions: - Call complete() to inform the upper layer handler of completion of the I/O. - Release driver resources associated with the sas_task in pm8001_ccb_task_free() call. When complete() is called, the upper layer may free the sas_task. As such, we should not touch the associated sas_task afterwards, but we do so in the pm8001_ccb_task_free() call. Fix by swapping the complete() and pm8001_ccb_task_free() calls ordering. Link: https://lore.kernel.org/r/1643289172-165636-4-git-send-email-john.garry@huawei.com Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
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| .. | ||
| Makefile | ||
| pm80xx_hwi.c | ||
| pm80xx_hwi.h | ||
| pm80xx_tracepoints.c | ||
| pm80xx_tracepoints.h | ||
| pm8001_chips.h | ||
| pm8001_ctl.c | ||
| pm8001_ctl.h | ||
| pm8001_defs.h | ||
| pm8001_hwi.c | ||
| pm8001_hwi.h | ||
| pm8001_init.c | ||
| pm8001_sas.c | ||
| pm8001_sas.h | ||