[PATCH v2 0/2] Let illegal access to user-space memory die

Eric Lin tesheng at andestech.com
Thu Dec 3 01:48:24 EST 2020


Accesses to user-space memory without calling uaccess routine
leads to hanging in page fault handler. Like arm64, we let it
die earlier in page fault handler.

Changes in v2:
    -Add a die_kernel_fault() helper
    -Split one long line code into two

Eric Lin (2):
  riscv/mm: Introduce a die_kernel_fault() helper function
  riscv/mm: Prevent kernel module to access user memory without uaccess
    routines

 arch/riscv/mm/fault.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

-- 
2.17.0




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