CVE-2024-35914 nfsd: Fix error cleanup path in nfsd_rename()

2024-05-1908:35:07

Linux

www.cve.org

linux kernel

nfsd_rename

vulnerability

AI Score

6.3

Confidence

Low

EPSS

Percentile

9.0%

JSON

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

nfsd: Fix error cleanup path in nfsd_rename()

Commit a8b0026847b8 (“rename(): avoid a deadlock in the case of parents
having no common ancestor”) added an error bail out path. However this
path does not drop the remount protection that has been acquired. Fix
the cleanup path to properly drop the remount protection.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/nfsd/vfs.c"
    ],
    "versions": [
      {
        "version": "a8b0026847b8",
        "lessThan": "331e125e02c0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a8b0026847b8",
        "lessThan": "9fe6e9e7b589",
        "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/nfsd/vfs.c"
    ],
    "versions": [
      {
        "version": "6.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.8",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8.5",
        "lessThanOrEqual": "6.8.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]