CVE-2024-36978 net: sched: sch_multiq: fix possible OOB write in multiq_tune()

2024-06-1906:20:23

Linux

github.com

linux kernel

cve-2024-36978

net

sched

sch_multiq

oob write fix

7.3 High

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

15.6%

JSON

In the Linux kernel, the following vulnerability has been resolved:

net: sched: sch_multiq: fix possible OOB write in multiq_tune()

q->bands will be assigned to qopt->bands to execute subsequent code logic
after kmalloc. So the old q->bands should not be used in kmalloc.
Otherwise, an out-of-bounds write will occur.

CNA Affected

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "c2999f7fb05b",
        "lessThan": "affc18fdc694",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/sched/sch_multiq.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.4"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.4",
        "versionType": "custom"
      },
      {
        "status": "unaffected",
        "version": "6.10-rc3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/sched/sch_multiq.c"
    ],
    "defaultStatus": "affected"
  }
]