diff options
Diffstat (limited to 'results/classifier/105/instruction/1065')
| -rw-r--r-- | results/classifier/105/instruction/1065 | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/results/classifier/105/instruction/1065 b/results/classifier/105/instruction/1065 new file mode 100644 index 000000000..c7ae0c814 --- /dev/null +++ b/results/classifier/105/instruction/1065 @@ -0,0 +1,18 @@ +instruction: 0.921 +device: 0.886 +graphic: 0.829 +network: 0.720 +other: 0.534 +vnc: 0.511 +socket: 0.422 +mistranslation: 0.369 +boot: 0.329 +semantic: 0.313 +assembly: 0.156 +KVM: 0.059 + +cputlb: uninitialized local variable in tlb_set_page_with_attrs cause SIGSEGV when a CPU access an unmapped IOMMU page +Description of problem: +When a TCG cpu accesses an unmapped page within an IOMMU region that causes a translation fault, QEMU SIGSEGVs in `io_readx`. +The reason was that in `address_space_translate_for_iotlb`, `xlat` is not set on a permission fault. +As a result, `xlat` in `tlb_set_page_with_attr` is uninitialized. This in turn causes various mis-calculation and eventually crashes in `io_readx`. |