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Linux KernelOperating system · Linux

CVE-2024-53126

HIGH · 7.8 CVSS v3.1 Published 2024-12-04
Fix available
A fix is available. Upgrade to 6.6.63 / 6.11.10 or later.
See remediation →
80/100
Remediation priority · High
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: vdpa: solidrun: Fix UB bug with devres In psnet_open_pf_bar() and snet_open_vf_bar() a string later passed to pcim_iomap_regions() is placed on the stack. Neither pcim_iomap_regions() nor the functions it calls copy that string. Should the string later ever be used, this, consequently, causes undefined behavior since the stack frame will by then have disappeared. Fix the bug by allocating the strings on the heap through devm_kasprintf().

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:<= 6.3>= 6.6.0, < 6.6.63>= 6.11.0, < 6.11.10

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
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 6.6.63 / 6.11.10 or later
Fixed in 6.6.636.11.10
Vendor patch git.kernel.org →
Recommended fix High confidence

Upgrade to Linux kernel 6.6.63 or later, or 6.11.10 or later (or any later stable release)

  1. Obtain the patch commit 0b364cf53b20204e92bac7c6ebd1ee7d3ec62931 from the Linux kernel stable repository
  2. Apply the patch to the affected Linux kernel source code in the drivers/vdpa/solidrun/ directory
  3. The patch modifies psnet_open_pf_bar() and snet_open_vf_bar() functions to allocate the BAR region name strings on the heap using devm_kasprintf() instead of using stack-allocated strings
  4. Recompile the kernel with the patched drivers/vdpa/solidrun/ module
  5. Reboot or reload the vdpa_solidrun module to load the fixed version
Caveat Kernel upgrades may require rebuild of out-of-tree modules and could introduce other changes; ensure compatibility with user-space tools and other system components

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 $1,950. 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-2024-53126 in production — separate from our analysis above.

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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
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