CVE-2026-53388 fuse: re-lock request before replacing page cache folio

🗓️ 19 Jul 2026 11:59:34Reported by LinuxType

Linux kernel fuse vulnerability relocks request before replacing page cache folio to avoid use after free.

Reporter	Title	Published	Views	Family All 12
ATTACKERKB	CVE-2026-53388	19 Jul 202611:59	–	attackerkb
Circl	CVE-2026-53388	20 Jul 202604:55	–	circl
CVE	CVE-2026-53388	19 Jul 202611:59	–	cve
EUVD	EUVD-2026-45510	19 Jul 202611:59	–	euvd
NVD	CVE-2026-53388	19 Jul 202612:16	–	nvd
OSV	CVE-2026-53388 fuse: re-lock request before replacing page cache folio	19 Jul 202611:59	–	osv
OSV	DEBIAN-CVE-2026-53388	19 Jul 202612:16	–	osv
OSV	UBUNTU-CVE-2026-53388	20 Jul 202600:00	–	osv
Positive Technologies	PT-2026-61093	19 Jul 202600:00	–	ptsecurity
RedhatCVE	CVE-2026-53388	20 Jul 202613:56	–	redhatcve

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/fuse/dev.c"
    ],
    "versions": [
      {
        "version": "ce534fb052928ce556639d7ecf01cbf4e01321e1",
        "lessThan": "7c18691e0cfda29672f79bafde8abdb7710674f6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ce534fb052928ce556639d7ecf01cbf4e01321e1",
        "lessThan": "5927b43a4f8d89e86930f524bf63e9c7e66f61b4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ce534fb052928ce556639d7ecf01cbf4e01321e1",
        "lessThan": "030fe3e9d8abdee303dd7e9e42f45082d382a407",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ce534fb052928ce556639d7ecf01cbf4e01321e1",
        "lessThan": "46473ddccdc5065033e397d6e62c280dbcd3d9c2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ce534fb052928ce556639d7ecf01cbf4e01321e1",
        "lessThan": "af2892249d982a1c036ca456cc135374e68b6677",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ce534fb052928ce556639d7ecf01cbf4e01321e1",
        "lessThan": "0223f452532d9cd8a5e87c45de828fd93c99bd25",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ce534fb052928ce556639d7ecf01cbf4e01321e1",
        "lessThan": "e28db6ac4792d065ab32565fd9f0a2361c3d4666",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ce534fb052928ce556639d7ecf01cbf4e01321e1",
        "lessThan": "a078484921052d0badd827fcc2770b5cfc1d4120",
        "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/fuse/dev.c"
    ],
    "versions": [
      {
        "version": "2.6.35",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.35",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.211",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.177",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.144",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.95",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.37",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.14",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.2",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/030fe3e9d8abdee303dd7e9e42f45082d382a407
git	www.git.kernel.org/stable/c/5927b43a4f8d89e86930f524bf63e9c7e66f61b4
git	www.git.kernel.org/stable/c/7c18691e0cfda29672f79bafde8abdb7710674f6
git	www.git.kernel.org/stable/c/0223f452532d9cd8a5e87c45de828fd93c99bd25
git	www.git.kernel.org/stable/c/af2892249d982a1c036ca456cc135374e68b6677
git	www.git.kernel.org/stable/c/46473ddccdc5065033e397d6e62c280dbcd3d9c2
git	www.git.kernel.org/stable/c/a078484921052d0badd827fcc2770b5cfc1d4120
git	www.git.kernel.org/stable/c/e28db6ac4792d065ab32565fd9f0a2361c3d4666

20 Jul 2026 13:39Current

CVSS 3.17.8

EPSS0.00177