CVE-2021-47426 bpf, s390: Fix potential memory leak about jit_data

2024-05-2115:04:12

Linux

github.com

cve-2021-47426

bpf

s390

jit_data

kfree

vulnerability

AI Score

6.8

Confidence

Low

EPSS

Percentile

15.5%

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

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

bpf, s390: Fix potential memory leak about jit_data

Make sure to free jit_data through kfree() in the error path.

CNA Affected

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "1c8f9b91c456",
        "lessThan": "a326f9c01cfb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1c8f9b91c456",
        "lessThan": "29fdb11ca88d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1c8f9b91c456",
        "lessThan": "d590a410e472",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1c8f9b91c456",
        "lessThan": "686cb8b9f6b4",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "arch/s390/net/bpf_jit_comp.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": "5.4.153",
        "versionType": "custom",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.73",
        "versionType": "custom",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.14.12",
        "versionType": "custom",
        "lessThanOrEqual": "5.14.*"
      },
      {
        "status": "unaffected",
        "version": "5.15",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "arch/s390/net/bpf_jit_comp.c"
    ],
    "defaultStatus": "affected"
  }
]