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Diffstat (limited to 'results/classifier/111/review/1892761')
| -rw-r--r-- | results/classifier/111/review/1892761 | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/results/classifier/111/review/1892761 b/results/classifier/111/review/1892761 new file mode 100644 index 00000000..bb409356 --- /dev/null +++ b/results/classifier/111/review/1892761 @@ -0,0 +1,48 @@ +other: 0.185 +semantic: 0.139 +device: 0.137 +graphic: 0.095 +performance: 0.078 +debug: 0.060 +network: 0.052 +PID: 0.051 +vnc: 0.044 +files: 0.038 +socket: 0.037 +permissions: 0.033 +boot: 0.028 +KVM: 0.023 +debug: 0.286 +performance: 0.212 +other: 0.134 +files: 0.077 +device: 0.068 +PID: 0.046 +semantic: 0.039 +KVM: 0.034 +network: 0.023 +socket: 0.020 +graphic: 0.017 +boot: 0.017 +vnc: 0.014 +permissions: 0.013 + +Heap-use-after-free through double-fetch in ehci + +Hello, +I don't have a qtest reproducer for this crash because it involves a DMA double-fetch, and I don't think we can reproduce those with qtest. + +Instead, I attached the pseudo-qtest trace produced by the fuzzer, along with some trace events. +The lines annotated with [DMA] are write commands that were triggered by a callback from a DMA read by the device. The lines annotated with [DOUBLE-FETCH] are DMA accesses that hit the same address more than once (possible double-fetches). + +I am still thinking of nicer ways of presenting this trace and providing a reproducer. +-Alex + + + +Hi Alexander! Have you ever been able to create a reproducer for this problem? + +No. If we figure out some way to consistently reproduce double-fetches in a non-fuzzer build, I'll report the issue again, but this can probably be closed + +Ok, let's close this one since it was not reproducible. If you find a reproducer, please open a new ticket in the gitlab tracker instead. + |
