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| author | Dmitry Vyukov <dvyukov@google.com> | 2024-06-04 07:53:02 +0200 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2024-06-04 08:47:22 +0000 |
| commit | da9e8155a4c58450c7d29339f10cea3dd75f15ae (patch) | |
| tree | 53ddefd287bea721d3817b0580bfea54be0427ca /tools/syz-execprog | |
| parent | cbdf5571c6448c7ff3c1a394f191e522344fc2b0 (diff) | |
tools/syz-execprog: fix nil deref
ProgInfo.Extra may be nil if no extra coverage present.
Diffstat (limited to 'tools/syz-execprog')
| -rw-r--r-- | tools/syz-execprog/execprog.go | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/syz-execprog/execprog.go b/tools/syz-execprog/execprog.go index 68d7db128..f4f00471e 100644 --- a/tools/syz-execprog/execprog.go +++ b/tools/syz-execprog/execprog.go @@ -311,8 +311,10 @@ func (ctx *Context) dumpCoverage(coverFile string, info *flatrpc.ProgInfo) { log.Logf(0, "call #%v: signal %v, coverage %v", i, len(inf.Signal), len(inf.Cover)) ctx.dumpCallCoverage(fmt.Sprintf("%v.%v", coverFile, i), inf) } - log.Logf(0, "extra: signal %v, coverage %v", len(info.Extra.Signal), len(info.Extra.Cover)) - ctx.dumpCallCoverage(fmt.Sprintf("%v.extra", coverFile), info.Extra) + if info.Extra != nil { + log.Logf(0, "extra: signal %v, coverage %v", len(info.Extra.Signal), len(info.Extra.Cover)) + ctx.dumpCallCoverage(fmt.Sprintf("%v.extra", coverFile), info.Extra) + } } func (ctx *Context) getProgramIndex() int { |