CVE-2026-74358 (GCVE-0-2026-74358)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:58 – Updated: 2026-08-17 05:17
VLAI
Title
ext4: fix fast commit wait/wake bit mapping on 64-bit
Summary
In the Linux kernel, the following vulnerability has been resolved: ext4: fix fast commit wait/wake bit mapping on 64-bit On 64-bit, ext4 dynamic inode states live in the upper half of i_flags, and ext4_test_inode_state() applies the corresponding +32 offset. The fast-commit wait and wake paths open-coded the wait key with the raw EXT4_STATE_* value. Add small helpers for the state wait word and bit, and use them for the FC_COMMITTING and FC_FLUSHING_DATA waits so the wait key follows the same mapping as the state helpers.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 857d32f2618166765ce9306a246d0745afc76859 , < e82d515092a0cf2bca92f399d5c330c324879cea (git)
Affected: 857d32f2618166765ce9306a246d0745afc76859 , < d06df6e447a8510f86db44b2522d5375362a9499 (git)
Affected: 857d32f2618166765ce9306a246d0745afc76859 , < 8b3bc93fee6771775243665a0cf31857d6659775 (git)
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Linux Linux Affected: 6.16
Unaffected: 0 , < 6.16 (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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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix fast commit wait/wake bit mapping on 64-bit\n\nOn 64-bit, ext4 dynamic inode states live in the upper half of i_flags,\nand ext4_test_inode_state() applies the corresponding +32 offset.\n\nThe fast-commit wait and wake paths open-coded the wait key with the raw\nEXT4_STATE_* value. Add small helpers for the state wait word and bit,\nand use them for the FC_COMMITTING and FC_FLUSHING_DATA waits so the wait\nkey follows the same mapping as the state helpers."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:17:52.469Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "datePublished": "2026-08-15T05:58:42.789Z",
    "dateReserved": "2026-08-15T05:44:03.887Z",
    "dateUpdated": "2026-08-17T05:17:52.469Z",
    "state": "PUBLISHED"
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          }
        ],
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        "lastModified": "2026-08-17T06:19:30.537",
        "metrics": {},
        "published": "2026-08-15T06:22:37.313",
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      "cve": "CVE-2026-74358",
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      "product_status:known_affected": "76",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ext4: fix fast commit wait/wake bit mapping on 64-bit",
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      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-74358.json",
      "version": "2"
    }
  }
}



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