Re: [PATCH RFC v3 30/35] arm64: mte: ptrace: Handle pages with missing tag storage

2024-02-01 Thread Alexandru Elisei
Hi, On Thu, Feb 01, 2024 at 02:51:39PM +0530, Anshuman Khandual wrote: > > > On 1/25/24 22:12, Alexandru Elisei wrote: > > A page can end up mapped in a MTE enabled VMA without the corresponding tag > > storage block reserved. Tag accesses made by ptrace in this case can lead > > to the wrong

Re: [PATCH RFC v3 30/35] arm64: mte: ptrace: Handle pages with missing tag storage

2024-02-01 Thread Anshuman Khandual
On 1/25/24 22:12, Alexandru Elisei wrote: > A page can end up mapped in a MTE enabled VMA without the corresponding tag > storage block reserved. Tag accesses made by ptrace in this case can lead > to the wrong tags being read or memory corruption for the process that is > using the tag storage