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| author | Dmitry Vyukov <dvyukov@google.com> | 2018-02-25 14:44:29 +0100 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2018-02-25 14:44:29 +0100 |
| commit | 2145057cb8a50aba1a27a67be19953bee9b164fd (patch) | |
| tree | a8a5b759ef44ad1a88f1bf3064283ff3caa7fc69 /prog/encodingexec_test.go | |
| parent | 1f4ae3f41357cf0a8cf8c698cbcd1000b8b44bf4 (diff) | |
pkg/compiler: fix alignment corner case
Fix alignemnt calculation for packed structs with alignment and bitfields.
Amusingly this affected only a single real struct -- ipv6_fragment_ext_header.
Diffstat (limited to 'prog/encodingexec_test.go')
| -rw-r--r-- | prog/encodingexec_test.go | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/prog/encodingexec_test.go b/prog/encodingexec_test.go index 92c36cad4..2ad19598e 100644 --- a/prog/encodingexec_test.go +++ b/prog/encodingexec_test.go @@ -390,6 +390,21 @@ func TestSerializeForExec(t *testing.T) { }, nil, }, + { + "syz_test$align7(&(0x7f0000000000)={{0x1, 0x2, 0x3, 0x4, 0x5, 0x6}, 0x42})", + []uint64{ + execInstrCopyin, dataOffset + 0, execArgConst, 1 | 0<<16 | 1<<24, 0x1, + execInstrCopyin, dataOffset + 0, execArgConst, 1 | 1<<16 | 1<<24, 0x2, + execInstrCopyin, dataOffset + 0, execArgConst, 1 | 2<<16 | 1<<24, 0x3, + execInstrCopyin, dataOffset + 1, execArgConst, 2 | 0<<16 | 1<<24, 0x4, + execInstrCopyin, dataOffset + 1, execArgConst, 2 | 1<<16 | 1<<24, 0x5, + execInstrCopyin, dataOffset + 1, execArgConst, 2 | 2<<16 | 1<<24, 0x6, + execInstrCopyin, dataOffset + 8, execArgConst, 1, 0x42, + callID("syz_test$align7"), ExecNoCopyout, 1, execArgConst, ptrSize, dataOffset, + execInstrEOF, + }, + nil, + }, } buf := make([]byte, ExecBufferSize) |