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CVE-2026-98941: In the Linux kernel, the following vulnerability has been resolved: ext4: don't enable large folios on encryp

32
Routine
HIGH 7.0WATCHLIST

CVE-2026-98941 is a high-severity flaw (CVSS 7.0) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In the Linux kernel, the following vulnerability has been resolved: ext4: don't enable large folios on encrypted inodes Commit 709f0f1f1bf5 ("ext4: add checks for large folio incompatibilities when BS > PS") disables large folios at mount time if the "encrypt" feature is set. However, enabling that feature on a mounted filesystem circumvents that check, and writing encrypted data results in a crash: BUG: kernel NULL pointer dereference, addr

Why this priority

  • High severity
  • On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score7.0 (High)
Attack vectorLocal
Attack complexityHigh
Privileges neededLow
User interactionNone
EPSS exploit chance0.2% (top 92%)
CISA exploited listNo
Published2026-10-23
Last modified2026-10-24
Publisher (CNA): kernel.org

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Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

Exact fixes by distribution

Fedora 46 · sugar-clock · FIXED · 22.1-17.fc46 · FEDORA-2026-57948849df · source
sudo dnf upgrade --advisory=FEDORA-2026-57948849df
Fedora ELN · selinux-policy · FIXED · 45.23-1.eln159 · FEDORA-2026-3668c969a2 · source
sudo dnf upgrade --advisory=FEDORA-2026-3668c969a2
Debian 12 · linux · NOT AFFECTED
Debian 13 · linux · NOT AFFECTED
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-98941?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-98941 being exploited?

CVE-2026-98941 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-98941 affect?

CVE-2026-98941 affects affected software. Severity is high (CVSS 7.0). In the Linux kernel, the following vulnerability has been resolved: ext4: don't enable large folios on encrypted inodes Commit 709f0f1f1bf5 ("ext4: add checks for large folio incompatibilities when BS > PS") disables large folios at mount

How urgent is CVE-2026-98941?

Priority 32/100. High severity; On your watchlist

Software pages

Linux kernel vulnerabilities

References

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