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Linux KernelOperating system · Linux

CVE-2024-50169

MEDIUM · 5.5 CVSS v3.1 Published 2024-11-07
Fix available
A fix is available. Upgrade to 6.6.59 / 6.11.6 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: vsock: Update rx_bytes on read_skb() Make sure virtio_transport_inc_rx_pkt() and virtio_transport_dec_rx_pkt() calls are balanced (i.e. virtio_vsock_sock::rx_bytes doesn't lie) after vsock_transport::read_skb(). While here, also inform the peer that we've freed up space and it has more credit. Failing to update rx_bytes after packet is dequeued leads to a warning on SOCK_STREAM recv(): [ 233.396654] rx_queue is empty, but rx_bytes is non-zero [ 233.396702] WARNING: CPU: 11 PID: 40601 at net/vmw_vsock/virtio_transport_common.c:589

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:>= 6.4, < 6.6.59>= 6.7, < 6.11.6= 6.12

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 6.6.59 / 6.11.6 or later
Fixed in 6.6.596.11.6
Vendor patch git.kernel.org →
Recommended fix High confidence

Upgrade to kernel version 6.6.59, 6.11.6, or 6.13 (or later stable release) depending on the branch in use

  1. Identify the current running kernel version using `uname -r`
  2. Check if the current version is one of the affected versions: 6.4.x, 6.5.x, 6.6.0-6.6.58, 6.7.x through 6.11.5, or exactly 6.12
  3. Schedule a maintenance window for kernel upgrade
  4. Update system package repositories
  5. Install a fixed kernel version: upgrade to 6.6.59 or later for the 6.6 branch, 6.11.6 or later for the 6.7-6.11 branch, or 6.13 or later for the 6.12 branch
  6. Reboot the system to load the new kernel
  7. Verify the fix is applied by checking the kernel version and reviewing the commit at git.kernel.org/stable/c/3543152f2d330141d9394d28855cb90b860091d2
Caveat Kernel upgrades may require rebooting and could introduce regressions; ensure compatibility with existing system drivers and modules before production deployment

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-2024-50169 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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