megaraid_sas : SMAP restriction--do not access user memory from IOCTL code
commit 323c4a02 upstream. This is an issue on SMAP enabled CPUs and 32 bit apps running on 64 bit OS. Do not access user memory from kernel code. The SMAP bit restricts accessing user memory from kernel code. Signed-off-by:Sumit Saxena <sumit.saxena@avagotech.com> Signed-off-by:
Kashyap Desai <kashyap.desai@avagotech.com> Reviewed-by:
Tomas Henzl <thenzl@redhat.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
Zefan Li <lizefan@huawei.com>
parent
8b3e15b2
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