CVE-2022-48639 net: sched: fix possible refcount leak in tc_new_tfilter()

2024-04-2812:59:42

Linux

www.cve.org

linux

kernel

refcount

vulnerability

net

sched

tc_new_tfilter

cve-2022-48639

AI Score

6.6

Confidence

Low

EPSS

Percentile

15.5%

JSON

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

net: sched: fix possible refcount leak in tc_new_tfilter()

tfilter_put need to be called to put the refount got by tp->ops->get to
avoid possible refcount leak when chain->tmplt_ops != NULL and
chain->tmplt_ops != tp->ops.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/sched/cls_api.c"
    ],
    "versions": [
      {
        "version": "7d5509fa0d3d",
        "lessThan": "903f7d322c17",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7d5509fa0d3d",
        "lessThan": "8844c750eeb0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7d5509fa0d3d",
        "lessThan": "f8162aed962b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7d5509fa0d3d",
        "lessThan": "0559d91ee3a2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7d5509fa0d3d",
        "lessThan": "c2e1cfefcac3",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/sched/cls_api.c"
    ],
    "versions": [
      {
        "version": "5.1",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.1",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.215",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.146",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.71",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.19.12",
        "lessThanOrEqual": "5.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]