CVE-2024-26612 netfs, fscache: Prevent Oops in fscache_put_cache()

2024-02-2915:52:17

Linux

github.com

linux kernel

vulnerability

netfs

fscache

prevent oops

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:

netfs, fscache: Prevent Oops in fscache_put_cache()

This function dereferences “cache” and then checks if it’s
IS_ERR_OR_NULL(). Check first, then dereference.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/netfs/fscache_cache.c"
    ],
    "versions": [
      {
        "version": "9549332df4ed",
        "lessThan": "82a9bc343ba0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9549332df4ed",
        "lessThan": "1c45256e5990",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9549332df4ed",
        "lessThan": "4200ad3e46ce",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9549332df4ed",
        "lessThan": "3be0b3ed1d76",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/netfs/fscache_cache.c"
    ],
    "versions": [
      {
        "version": "5.17",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.17",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.76",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.15",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.7.3",
        "lessThanOrEqual": "6.7.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]