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ocfs2: validate orphan slot during inode read

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: ocfs2: validate orphan slot during inode read Patch series "ocfs2: validate active orphan slots during inode read". OCFS2 trusts active ordinary and append-DIO orphan slots read from dinodes. A corrupted slot can therefore index osb_orphan_wipes or the slot-local system-inode cache outside their allocations before the corruption is reported. Patch 1 validates the ordinary orphan slot used by inode wipe processing. Patch 2 validates the append-DIO orphan slot used by DIO completion and orphan recovery. Both checks reject corrupt metadata at the existing inode validation boundary. This patch (of 2): [BUG] A corrupted dinode with OCFS2_ORPHANED_FL can carry an i_orphaned_slot outside the mounted filesystem slot range. ocfs2_wipe_inode() uses it to index osb_orphan_wipes before looking up the orphan directory, causing an out-of-bounds memory access. BUG: KASAN: slab-use-after-free in ocfs2_get_system_file_inode+0x780/0x820 fs/ocfs2/sysfile.c:102 Read of size 8 at addr ffff88800b767c00 by task kworker/u8:3/85 Call Trace: ... ocfs2_get_system_file_inode+0x780/0x820 fs/ocfs2/sysfile.c:102 ocfs2_wipe_inode+0x292/0xf70 fs/ocfs2/inode.c:840 ocfs2_delete_inode fs/ocfs2/inode.c:1155 [inline] ocfs2_evict_inode+0x6c9/0x1170 fs/ocfs2/inode.c:1295 evict+0x38e/0x8f0 fs/inode.c:810 iput_final fs/inode.c:1914 [inline] iput fs/inode.c:1966 [inline] iput+0x55b/0x8b0 fs/inode.c:1926 ocfs2_recover_orphans+0x610/0xe40 fs/ocfs2/journ

Announced Source revision 1
Original source ↗

CVE-2026-90205

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-90205

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
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Prerequisites
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Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "b4df6ed8db0c387d38292e31f00adc4cd297ed5a",
        "lessThan": "f535a34831f8325950933b401c76bfa99624419c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4df6ed8db0c387d38292e31f00adc4cd297ed5a",
        "lessThan": "dea50e8049b0db2eb3d468e2505034962e81d8cd",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4df6ed8db0c387d38292e31f00adc4cd297ed5a",
        "lessThan": "c6c908f9b4edfb04534b15573168ae038f7a9cbf",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4df6ed8db0c387d38292e31f00adc4cd297ed5a",
        "lessThan": "3d7c4b7ce7b4baedfd8699fa692cd95f77d332de",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4df6ed8db0c387d38292e31f00adc4cd297ed5a",
        "lessThan": "b2d31acbd3b182755b019183fb46949ba5e39b9f",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "fs/ocfs2/inode.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "2.6.16"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "2.6.16",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "6.6.160",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.114",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.52",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.6",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "fs/ocfs2/inode.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-90205

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#48632 · Revision 1
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Publisher date
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