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Diffstat (limited to 'results/classifier/105/graphic/1254')
| -rw-r--r-- | results/classifier/105/graphic/1254 | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/results/classifier/105/graphic/1254 b/results/classifier/105/graphic/1254 new file mode 100644 index 000000000..aba9f16ed --- /dev/null +++ b/results/classifier/105/graphic/1254 @@ -0,0 +1,68 @@ +graphic: 0.662 +device: 0.614 +instruction: 0.459 +socket: 0.378 +network: 0.328 +semantic: 0.286 +assembly: 0.239 +mistranslation: 0.221 +boot: 0.206 +vnc: 0.201 +KVM: 0.183 +other: 0.135 + +hw: misc: edu: two off-by-one errors +Description of problem: +In `hw/misc/edu.c`, `edu_check_range()` fails for boundary conditions where `size2 == 0` and `size2 == size1`. +Steps to reproduce: +Two ways to reproduce (attached test program, [foo.c](/uploads/9cbef4f72d175b8336b58f607e262d7b/foo.c)) + +error: +1. `gcc -o foo foo.c` +2. `./foo` + +fix: +1. `gcc -DFIXED -o foo foo.c` +2. `./foo` + +Using `qtest`: (see "QEMU command line" above). +Additional information: +(output of `foo` without fix): +``` +EDU: DMA range 0x0000000000000000-0x0000000000000fff out of bounds (0x0000000000000000-0xffffffffffffffff)! +EDU: DMA range 0x0000000000000000-0x0000000000000fff out of bounds (0x0000000000000000-0x0000000000000fff)! +``` + +Output of `qtest` without the fix: +``` +qemu: hardware error: EDU: DMA range 0x0000000000000000-0x0000000000000fff out of bounds (0x0000000000040000-0x0000000000040fff)! +CPU #0: +EAX=00000000 EBX=00000000 ECX=00000000 EDX=00000663 +ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000 +EIP=0000fff0 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 +ES =0000 00000000 0000ffff 00009300 +CS =f000 ffff0000 0000ffff 00009b00 +SS =0000 00000000 0000ffff 00009300 +DS =0000 00000000 0000ffff 00009300 +FS =0000 00000000 0000ffff 00009300 +GS =0000 00000000 0000ffff 00009300 +LDT=0000 00000000 0000ffff 00008200 +TR =0000 00000000 0000ffff 00008b00 +GDT= 00000000 0000ffff +IDT= 00000000 0000ffff +CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000 +DR0=00000000 DR1=00000000 DR2=00000000 DR3=00000000 +DR6=ffff0ff0 DR7=00000400 +EFER=0000000000000000 +FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 +FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 +FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 +FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 +FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 +XMM00=0000000000000000 0000000000000000 XMM01=0000000000000000 0000000000000000 +XMM02=0000000000000000 0000000000000000 XMM03=0000000000000000 0000000000000000 +XMM04=0000000000000000 0000000000000000 XMM05=0000000000000000 0000000000000000 +XMM06=0000000000000000 0000000000000000 XMM07=0000000000000000 0000000000000000 +``` + +Patch has been submitted to `qemu-devel` |