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Linux KernelOperating system · Linux

CVE-2024-38604

MEDIUM · 5.5 CVSS v3.1 Published 2024-06-19
Fix available
A fix is available. Upgrade to 6.6.33 / 6.8.12 or later.
See remediation →
57/100
Remediation priority · Elevated
Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
In the Linux kernel, the following vulnerability has been resolved: block: refine the EOF check in blkdev_iomap_begin blkdev_iomap_begin rounds down the offset to the logical block size before stashing it in iomap->offset and checking that it still is inside the inode size. Check the i_size check to the raw pos value so that we don't try a zero size write if iter->pos is unaligned.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis

A detailed technical summary for this CVE is being prepared.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Linux KernelOperating system
Affected:>= 6.6, < 6.6.33>= 6.7, < 6.8.12>= 6.9, < 6.9.3

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 6.6.33 / 6.8.12 / 6.9.3 or later
Fixed in 6.6.336.8.126.9.3
Vendor patch git.kernel.org →
Recommended fix High confidence

Upgrade to Linux kernel 6.6.33+, 6.8.12+, or 6.9.3+ (depending on your branch)

  1. Identify the current kernel version using `uname -r` or `cat /proc/version`
  2. Determine which kernel branch (6.6, 6.7, or 6.9) your system is running
  3. Plan an upgrade to the appropriate fixed release: 6.6.33 or higher, 6.8.12 or higher, or 6.9.3 or higher
  4. For production systems: test the kernel upgrade in a staging environment first
  5. Apply the kernel upgrade using your distribution's standard package manager (e.g., `apt-get dist-upgrade`, `yum update`, or `dnf upgrade`)
  6. Reboot the system into the new kernel version
  7. Verify the new kernel is running with `uname -r` and confirm it meets the minimum fixed version
Caveat Kernel upgrades may require driver/compatibility testing; minor version bumps within the same release train typically have low risk

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,600. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-38604 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data