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Fix snapshot module (#3047)

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Dongjia "toka" Zhang 2025-03-06 16:12:05 +01:00 committed by GitHub
parent c0894c40e5
commit 629787771b
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1 changed files with 2 additions and 2 deletions
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libafl_qemu/src/modules/usermode/snapshot.rs
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@ -423,9 +423,9 @@ impl SnapshotModule {
// The heap has grown. so we want to drop those
// we want to align the addresses before calling unmap
// although it is very unlikely that the brk has an unaligned value
let new_page_boundary = (new_brk + ((SNAPSHOT_PAGE_MASK - 1) as GuestAddr))
let new_page_boundary = (new_brk + ((SNAPSHOT_PAGE_SIZE - 1) as GuestAddr))
& (!(SNAPSHOT_PAGE_SIZE - 1) as GuestAddr);
let old_page_boundary = (self.brk + ((SNAPSHOT_PAGE_MASK - 1) as GuestAddr))
let old_page_boundary = (self.brk + ((SNAPSHOT_PAGE_SIZE - 1) as GuestAddr))
& (!(SNAPSHOT_PAGE_SIZE - 1) as GuestAddr);
if new_page_boundary != old_page_boundary {