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syz-fuzzer: add NULL check in supported features #4763

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syz-fuzzer: add NULL check in supported features #4763

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syz-fuzzer: add NULL check in supported features
alessandrocarminati May 3, 2024
0aa64a3
Merge branch 'master' into master
alessandrocarminati May 8, 2024
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1 change: 1 addition & 0 deletions CONTRIBUTORS
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Original file line number Diff line number Diff line change
Expand Up @@ -130,3 +130,4 @@ Krzysztof Pawlaczyk
Simone Weiß
Amazon
Bjoern Doebel
Alessandro Carminati
8 changes: 7 additions & 1 deletion syz-fuzzer/fuzzer.go
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Expand Up @@ -163,7 +163,13 @@ func main() {
checkReq = new(rpctype.CheckArgs)
}

for _, feat := range r.Features.Supported() {
suppFeatures := r.Features.Supported()

if suppFeatures == nil {
log.SyzFatalf("The currently running kernel image seems not to support any required feature, have you forgotten to mount debugfs?")
}

for _, feat := range suppFeatures {
log.Logf(0, "%v: %v", feat.Name, feat.Reason)
}

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