linux: a guest holds only the memory it asked for - #586

Open

eKisNonos wants to merge 13 commits into

linux/go-guestsfrom

linux/guest-memory

Commits on Sep 29, 2026

memory: fill no page for a foreign guest on its own
eKisNonos
committed
e0482b2
linux: make PROT_NONE mean no access on pages a guest has
eKisNonos
committed
1951525
linux: record the protection mprotect sets on a backed span
eKisNonos
committed
187181d
linux: replace what a MAP_FIXED mapping lands on
eKisNonos
committed
7232acf
linux: never lay a new mapping over one the guest holds
eKisNonos
committed
259d2d9
linux: move the break in whole pages, and give pages back when it drops
eKisNonos
committed
137901e
linux: keep a mapping's protection and provenance through mremap
eKisNonos
committed
f60b819
linux: refuse an unaligned address where Linux refuses it
eKisNonos
committed
7374720
linux: serve mlock, munlock, mlockall, munlockall, msync and mincore
eKisNonos
committed
f87ffa0
linux: build the memory proofs as one guest, so the test store loads
eKisNonos
committed
242bcf5
linux: split the memory files to 75 lines and write comments as blocks
eKisNonos
committed
a42cf1f
linux: fork copies a large span in pieces, with its own protection
eKisNonos
committed
a111270
linux: an attack guest that tries to leave its address space
eKisNonos
committed
9ac41db