Messages in this thread | | | Subject | Re: [PATCH v3 0/2] Let illegal access to user-space memory die | From | Ben Dooks <> | Date | Mon, 1 Feb 2021 13:18:36 +0000 |
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On 22/12/2020 02:35, Palmer Dabbelt wrote: > On Thu, 03 Dec 2020 21:42:57 PST (-0800), tesheng@andestech.com wrote: >> 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 v3: >> -Let no_context() use die_kernel_fault() helper >> >> 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 | 28 ++++++++++++++++++++++------ >> 1 file changed, 22 insertions(+), 6 deletions(-) > > Thanks, these will be on for-next when the merge window ends.
Just tested this and it seems to be working.
-- Ben Dooks http://www.codethink.co.uk/ Senior Engineer Codethink - Providing Genius
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