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| author | Aleksandr Nogikh <nogikh@google.com> | 2025-02-07 12:22:53 +0100 |
|---|---|---|
| committer | Aleksandr Nogikh <nogikh@google.com> | 2025-02-07 11:34:29 +0000 |
| commit | 94926c8dd954acda93e0726c09325ecb8d88572b (patch) | |
| tree | cd39a776ce55bdf76b1117b83c37fc094ecf3029 | |
| parent | a4f327c25a415765c6cca57d7d9fb572861fe158 (diff) | |
sys/targets: increase DataOffset for 64bit builds
It turned out the currently used value hit the high shadow area on arm64
machines.
Closes #5762.
| -rw-r--r-- | sys/targets/targets.go | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/targets/targets.go b/sys/targets/targets.go index 1d79f4f95..18b722945 100644 --- a/sys/targets/targets.go +++ b/sys/targets/targets.go @@ -777,7 +777,10 @@ func initTarget(target *Target, OS, arch string) { func (target *Target) defaultDataOffset() uint64 { if target.PtrSize == 8 { // An address from ASAN's 64-bit HighMem area. - return 0x200000000000 + // 0x400000000000 works both for arm64 and amd64. We don't run syzkaller tests on any other platform. + // During real fuzzing, we don't build with ASAN, so the address should not matter much as long as + // it's far enough from the area allocated by malloc(). + return 0x400000000000 } // From 32-bit HighMem area. return 0x80000000 |