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CVE-2026-74362 (GCVE-0-2026-74362)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:58 – Updated: 2026-08-17 05:17
VLAI
Title
ext2: fix ignored return value of generic_write_sync()
Summary
In the Linux kernel, the following vulnerability has been resolved: ext2: fix ignored return value of generic_write_sync() Fix ext2_dio_write_iter() to propagate the error returned by generic_write_sync() instead of silently discarding it, which could cause write(2) to return success to userspace on O_SYNC/O_DSYNC files even when the sync failed. The correct pattern, already used in ext2_dax_write_iter() in the same file and in ext4, xfs, f2fs among others, is: if (ret > 0) ret = generic_write_sync(iocb, ret); Found by Linux Verification Center (linuxtesting.org) with SVACE. [JK: Reflect also filemap_write_and_wait() return value]
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: fb5de4358e1aa4753dce73c4dc1aca73ff39cedd , < 8990dbb7065b0b002b1e58b9091a5b61f5e94dbe (git)
Affected: fb5de4358e1aa4753dce73c4dc1aca73ff39cedd , < 8d70b3973020e59845c0bdad90e0b9c2295fd493 (git)
Affected: fb5de4358e1aa4753dce73c4dc1aca73ff39cedd , < ffa974b2f50ad8b911b9066d7aed84ad0afabcdb (git)
Affected: fb5de4358e1aa4753dce73c4dc1aca73ff39cedd , < b6bc07e49a5fbb335f56eb90cd63dec6584c77d3 (git)
Affected: fb5de4358e1aa4753dce73c4dc1aca73ff39cedd , < a4659be0bc7cb1856ffb15b67f903229ae8891ec (git)
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Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.6.145 , ≤ 6.6.* (semver)
Unaffected: 6.12.97 , ≤ 6.12.* (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
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        },
        {
          "url": "https://git.kernel.org/stable/c/a4659be0bc7cb1856ffb15b67f903229ae8891ec"
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      "title": "ext2: fix ignored return value of generic_write_sync()",
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    "cveId": "CVE-2026-74362",
    "datePublished": "2026-08-15T05:58:45.553Z",
    "dateReserved": "2026-08-15T05:44:03.887Z",
    "dateUpdated": "2026-08-17T05:17:56.829Z",
    "state": "PUBLISHED"
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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-08-19T10:02:54+00:00",
      "cve": "CVE-2026-74362",
      "id": "CVE-2026-74362",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_affected": "14",
      "product_status:known_not_affected": "260",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ext2: fix ignored return value of generic_write_sync()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74362.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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