CVE-2026-90420 (GCVE-0-2026-90420)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:09 – Updated: 2026-09-17 16:09
VLAI
Title
nilfs2: fix infinite loop in nilfs_clean_segments()
Summary
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix infinite loop in nilfs_clean_segments() syzbot reported a hung task in nilfs_transaction_begin(). This occurs because the cleaner ioctl falls into an infinite loop if nilfs_segctor_construct() repeatedly returns -EROFS (e.g. the device is remounted as read-only after an I/O error). Currently in nilfs_clean_segments(), if err is non-zero, it logs the error and sleeps but doesn't abort when it encounters a terminal error like -EROFS. This causes the thread to loop forever. Fix this by breaking out of the loop if nilfs_segctor_construct() returns -EROFS. This matches the behaviour in nilfs_segctor_write_out(), which also handles -EROFS.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 , < e3e9367dae1a6392cbb14ab0b2ab5edbf39735c3 (git)
Affected: 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 , < 217b967ad7887a3e1ebc08f46f6484e081acd4b4 (git)
Affected: 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 , < 3bcdbdaac884a4baa59716cf9bd9470c75276e2d (git)
Affected: 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 , < d7afca8e4efbf4c455b4663c29ae59fde2f1b671 (git)
Affected: 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 , < c07e5ad6539e7e9350d5c65cbf8adb69d1711b15 (git)
Affected: 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 , < 1fc6df85b4954b6fda9c351843aaca3c06f66d8d (git)
Affected: 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 , < 8cea0bc78ac64cb88da49c07f80bf2cf9fb7aff8 (git)
Affected: 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 , < ce5a5ad1a8330a2fcfdd9ec2ab341be739e89a18 (git)
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Linux Linux Affected: 2.6.30
Unaffected: 0 , < 2.6.30 (semver)
Unaffected: 5.10.270 , ≤ 5.10.* (semver)
Unaffected: 5.15.221 , ≤ 5.15.* (semver)
Unaffected: 6.1.188 , ≤ 6.1.* (semver)
Unaffected: 6.6.157 , ≤ 6.6.* (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.52 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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    "datePublished": "2026-09-17T16:09:44.558Z",
    "dateReserved": "2026-09-11T19:38:34.813Z",
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        "vulnStatus": "Received"
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    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-22T16:28:14Z",
      "cve": "CVE-2026-90420",
      "id": "CVE-2026-90420",
      "initial_release_date": "2026-09-22T16:28:14Z",
      "product_status:known_affected": "347",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-90420",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-90420.json",
      "version": "2"
    }
  }
}



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