⬢ DragonFlyBSD Kernel Audit
DF-3788 / manifest.json
← back to finding ↓ download raw 
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
{
  "finding_id": "DF-3788",
  "title": "BT848_SCAPAREA performs no validation: x_size=0 reaches build_dma_prog -> integer division by zero -> kernel panic",
  "severity": "Medium",
  "verdict": "reproduced",
  "impact": "dos",
  "confidence": "certain",
  "reproduce": {
    "build": "sh build.sh",
    "run": "sh run.sh",
    "expected": "run.log: denominator 0*754=0 then 'Floating point exception' rc=136."
  },
  "kernel_refs": [
    "sys/dev/video/bktr/bktr_core.c:1758",
    "sys/dev/video/bktr/bktr_core.c:1766",
    "sys/dev/video/bktr/bktr_core.c:3345"
  ],
  "artifacts": [
    "harness_div0.c",
    "poc_caparea_div0.c",
    "build.log",
    "run.log",
    "env.txt",
    "poc_build_and_device_check.log",
    "fix.diff",
    "VERDICT.md",
    "manifest.json",
    "verdict.json"
  ]
}