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Linux KernelOperating system · Linux

CVE-2024-47751

HIGH · 7.8 CVSS v3.1 Published 2024-10-21
Fix available
A fix is available. Upgrade to 6.1.113 / 6.6.54 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: PCI: kirin: Fix buffer overflow in kirin_pcie_parse_port() Within kirin_pcie_parse_port(), the pcie->num_slots is compared to pcie->gpio_id_reset size (MAX_PCI_SLOTS) which is correct and would lead to an overflow. Thus, fix condition to pcie->num_slots + 1 >= MAX_PCI_SLOTS and move pcie->num_slots increment below the if-statement to avoid out-of-bounds array access. Found by Linux Verification Center (linuxtesting.org) with SVACE. [kwilczynski: commit log]

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
How this class of weakness works · CWE-120

A fixed-size buffer is filled without checking the length of the incoming data, so it overflows into neighbouring memory. This is the classic overflow attackers use to overwrite return addresses and hijack execution. The fix is strict length checks and safe, bounded string and memory functions.

General guidance for the classic buffer overflow class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

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:>= 5.16, < 6.1.113>= 6.2, < 6.6.54>= 6.7, < 6.10.13>= 6.11, < 6.11.2

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 6.1.113 / 6.6.54 / 6.10.13 or later
Fixed in 6.1.1136.6.546.10.13
Vendor patch git.kernel.org →
Recommended fix High confidence

6.1.113 (for 5.16-6.1.x) | 6.6.54 (for 6.2-6.6.x) | 6.10.13 (for 6.7-6.10.x) | 6.11.2 (for 6.11.x)

  1. Identify the current kernel version using 'uname -r' or 'cat /proc/version'
  2. Determine which affected branch your kernel falls into based on version comparison
  3. Upgrade to the first fixed version in your branch: for 5.16-6.1.x upgrade to 6.1.113, for 6.2-6.6.x upgrade to 6.6.54, for 6.7-6.10.x upgrade to 6.10.13, for 6.11-6.11.x upgrade to 6.11.2
  4. Use your distribution's package manager to install the new kernel (e.g., apt-get update && apt-get install linux-image-<version> for Debian/Ubuntu, or dnf/yum for RHEL/Fedora)
  5. Reboot the system to load the patched kernel
  6. Verify the running kernel version with 'uname -r' to confirm the fix is applied
Caveat Kernel upgrades may require driver recompilation or system reboots; ensure compatibility with custom modules or hardware before upgrading

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 $3,200. 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-2024-47751 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
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