CVE-2024-34027 f2fs: compress: fix to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock

2024-06-2413:56:49

Linux

www.cve.org

linux kernel

vulnerability

cve-2024-34027

f2fs

compress

fix

reserve

release

compress blocks

cp_rwsem lock

racing

checkpoint

filesystem metadata

blkaddr

dnode

inode fields

total valid block count

spo case

0.0004 Low

EPSS

Percentile

10.5%

JSON

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

f2fs: compress: fix to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock

It needs to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock
to avoid racing with checkpoint, otherwise, filesystem metadata including
blkaddr in dnode, inode fields and .total_valid_block_count may be
corrupted after SPO case.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/f2fs/file.c"
    ],
    "versions": [
      {
        "version": "c75488fb4d82",
        "lessThan": "a6e1f7744e9b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c75488fb4d82",
        "lessThan": "b5bac43875aa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c75488fb4d82",
        "lessThan": "5d47d6388373",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c75488fb4d82",
        "lessThan": "329edb7c9e3b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c75488fb4d82",
        "lessThan": "69136304fd14",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c75488fb4d82",
        "lessThan": "0a4ed2d97cb6",
        "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/f2fs/file.c"
    ],
    "versions": [
      {
        "version": "5.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.8",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.219",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.161",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.93",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.33",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9.4",
        "lessThanOrEqual": "6.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]