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[ Upstream commit 1f889b58716a5f5e3e4fe0e6742c1a4472f29ac1 ] A use-after-free or null-pointer error occurs when the 251-byte response data is copied from IOMB buffer to response message buffer in function pm8001_mpi_get_nvmd_resp(). After sending the command get_nvmd_data(), the caller begins to sleep by calling wait_for_complete() and waits for the wake-up from calling complete() in pm8001_mpi_get_nvmd_resp(). Due to unexpected events (e.g., interrupt), if response buffer gets freed before memcpy(), a use-after-free error will occur. To fix this, the complete() should be called after memcpy(). Link: https://lore.kernel.org/r/20201102165528.26510-5-Viswas.G@microchip.com.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: yuuzheng <yuuzheng@google.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com> Signed-off-by: Radha Ramachandran <radha@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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| .. | ||
| Makefile | ||
| pm80xx_hwi.c | ||
| pm80xx_hwi.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 | ||