CVE-2026-74358ext4: fix fast commit wait/wake bit mapping on 64-bit

Description

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.

Timeline

Scores

No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.

EPSS (exploitation in 30 days)

0.21% · top 89% of all CVEs (15 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.

Affected products

• Linux · Linux

  • affected 857d32f2618166765ce9306a246d0745afc76859 – < e82d515092a0cf2bca92f399d5c330c324879cea
  • affected 857d32f2618166765ce9306a246d0745afc76859 – < d06df6e447a8510f86db44b2522d5375362a9499
  • affected 857d32f2618166765ce9306a246d0745afc76859 – < 8b3bc93fee6771775243665a0cf31857d6659775

• Linux · Linux

  • affected 6.16
  • unaffected < 6.16
  • unaffected 6.18.40 – ≤ 6.18.*
  • unaffected 7.1.5 – ≤ 7.1.*
  • unaffected 7.2 – ≤ *

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• EUVD EUVD-2026-59505 (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-74358](https://cveledger.app/badge/CVE-2026-74358.svg)](https://cveledger.app/cve/CVE-2026-74358)

Record last updated 17 Aug 2026, 05:17 UTC.