parisc: Fix non-access data TLB cache flush faults

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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...

PT-2022-29753

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.16.19 Description The issue is related to non-access data TLB cache flush faults in the parisc component. The actual impact and attack plausibility have not yet been proven. Recommendations For Linux Kernel...

PT-2022-29426

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.17.2 Description The issue is related to non-access data TLB cache flush faults in the parisc component. The actual impact and attack plausibility have not yet been proven. Recommendations For Linux Kernel...