parisc: Fix non-access data TLB cache flush faults

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UBUNTU-CVE-2022-49172

In the Linux kernel, the following vulnerability has been resolved: parisc: Fix non-access data TLB cache flush faults When a page is not present, we get non-access data TLB faults from the fdc and fic instructions in flushuserdcacherangeasm and flushusericacherangeasm. When these occur, the cach...

CVE-2022-49172

Summary: CVE-2022-49172 pertains to the Linux kernel parisc line. The root cause was non-access data TLB faults from flush_user_dcache_range_asm and flush_user_icache_range_asm when pages are not present, leading to cache lines not being invalidated and potential memory corruption. Impact details...