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CVE-2026-80804 (GCVE-0-2026-80804)

Vulnerability from cvelistv5 – Published: 2026-09-04 15:13 – Updated: 2026-09-04 15:13
VLAI
Title
xfs: restore nofs context unconditionally in xfs_trans_roll
Summary
In the Linux kernel, the following vulnerability has been resolved: xfs: restore nofs context unconditionally in xfs_trans_roll When __xfs_trans_commit() fails in xfs_trans_roll(), the NOFS context is cleared but only restored in the success path. This leaves the error path without nofs protection, causing a circular lock dependency between xfs_nondir_ilock_class and fs_reclaim: CPU0 CPU1 ---- ---- lock(&xfs_nondir_ilock_class); lock(fs_reclaim); lock(&xfs_nondir_ilock_class); lock(fs_reclaim); Fix this by moving xfs_trans_set_context() before the error check so that nofs context is always restored on the new transaction.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a1ca658d649a4d8972e2e21ac2625b633217e327 , < b09198cf90ccf296970b774beea1c1ddb260f94c (git)
Affected: a1ca658d649a4d8972e2e21ac2625b633217e327 , < 4d00a39c676274f4071b467e630565ac1e3ae0f2 (git)
Affected: a1ca658d649a4d8972e2e21ac2625b633217e327 , < 0241ea5fb0fe86d2a673163b2f5815111aadc7f7 (git)
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Linux Linux Affected: 7.0
Unaffected: 0 , < 7.0 (semver)
Unaffected: 7.1.11 , ≤ 7.1.* (semver)
Unaffected: 7.2.1 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
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        {
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          "product": "Linux",
          "programFiles": [
            "fs/xfs/xfs_trans.c"
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              "operator": "OR"
            }
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: restore nofs context unconditionally in xfs_trans_roll\n\nWhen __xfs_trans_commit() fails in xfs_trans_roll(), the NOFS context\nis cleared but only restored in the success path.  This leaves the\nerror path without nofs protection, causing a circular lock dependency\nbetween xfs_nondir_ilock_class and fs_reclaim:\n\n       CPU0                    CPU1\n       ----                    ----\n  lock(\u0026xfs_nondir_ilock_class);\n                               lock(fs_reclaim);\n                               lock(\u0026xfs_nondir_ilock_class);\n  lock(fs_reclaim);\n\nFix this by moving xfs_trans_set_context() before the error check so\nthat nofs context is always restored on the new transaction."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-04T15:13:18.282Z",
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        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/0241ea5fb0fe86d2a673163b2f5815111aadc7f7"
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      "title": "xfs: restore nofs context unconditionally in xfs_trans_roll",
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    "cveId": "CVE-2026-80804",
    "datePublished": "2026-09-04T15:13:18.282Z",
    "dateReserved": "2026-08-26T14:34:25.794Z",
    "dateUpdated": "2026-09-04T15:13:18.282Z",
    "state": "PUBLISHED"
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: restore nofs context unconditionally in xfs_trans_roll\n\nWhen __xfs_trans_commit() fails in xfs_trans_roll(), the NOFS context\nis cleared but only restored in the success path.  This leaves the\nerror path without nofs protection, causing a circular lock dependency\nbetween xfs_nondir_ilock_class and fs_reclaim:\n\n       CPU0                    CPU1\n       ----                    ----\n  lock(\u0026xfs_nondir_ilock_class);\n                               lock(fs_reclaim);\n                               lock(\u0026xfs_nondir_ilock_class);\n  lock(fs_reclaim);\n\nFix this by moving xfs_trans_set_context() before the error check so\nthat nofs context is always restored on the new transaction."
          }
        ],
        "id": "CVE-2026-80804",
        "lastModified": "2026-09-04T16:18:07.397",
        "metrics": {},
        "published": "2026-09-04T16:18:07.397",
        "references": [
          {
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      "cve": "CVE-2026-80804",
      "id": "CVE-2026-80804",
      "initial_release_date": "2026-09-05T00:27:03Z",
      "product_status:known_not_affected": "353",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-80804",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-80804.json",
      "version": "4"
    }
  }
}



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