CVE-2024-40923
9.8 · CRITICALOverview
CVE-2024-40923 is a critical-severity vulnerability affecting linux linux_kernel. It was published on July 12, 2024 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
In the Linux kernel, the following vulnerability has been resolved:
vmxnet3: disable rx data ring on dma allocation failure
When vmxnet3_rq_create() fails to allocate memory for rq->data_ring.base,
the subsequent call to vmxnet3_rq_destroy_all_rxdataring does not reset
rq->data_ring.desc_size for the data ring that failed, which presumably
causes the hypervisor to reference it on packet reception.
To fix this bug, rq->data_ring.desc_size needs to be set to 0 to tell
the hypervisor to disable this feature.
[ 95.436876] kernel BUG at net/core/skbuff.c:207!
[ 95.439074] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
[ 95.440411] CPU: 7 PID: 0 Comm: swapper/7 Not tainted 6.9.3-dirty #1
[ 95.441558] Hardware name: VMware, Inc. VMware Virtual
Platform/440BX Desktop Reference Platform, BIOS 6.00 12/12/2018
[ 95.443481] RIP: 0010:skb_panic+0x4d/0x4f
[ 95.444404] Code: 4f 70 50 8b 87 c0 00 00 00 50 8b 87 bc 00 00 00 50
ff b7 d0 00 00 00 4c 8b 8f c8 00 00 00 48 c7 c7 68 e8 be 9f e8
Remediation
Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| linux | linux_kernel | >= 6.3.1, < 6.6.35 | Affected |
References
Frequently Asked Questions
What is CVE-2024-40923?
CVE-2024-40923 is a critical-severity vulnerability affecting linux linux_kernel. It was published on July 12, 2024 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2024-40923?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2024-40923?
Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2024-40923?
CyberStrike's AI-powered security agents can automatically detect CVE-2024-40923 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
Related CRITICAL CVEs from 2024
View all →An attacker in the wifi vicinity of a target Google Home can spy on the victim, resulting in Elevati
Google Nest WiFi Pro root code-execution & user-data compromise
In checkDebuggingDisallowed of DeviceVersionFragment.java, there is a possible way to access adb
Unrestricted Upload of File with Dangerous Type vulnerability in JS Help Desk JS Help Desk – Best He
In default installations of Microchip maxView Storage Manager (for Adaptec Smart Storage Controllers
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of
Deserialization of Untrusted Data vulnerability in Anton Bond Woocommerce Tranzila Payment Gateway.T
Deserialization of Untrusted Data vulnerability in Tagbox Tagbox – UGC Galleries, Social Media Widge
A vulnerability has been identified in SIMATIC IPC1047E (All versions with maxView Storage Manager <
An issue has been discovered in GitLab CE/EE affecting all versions from 16.1 prior to 16.1.6, 16.2
The Social Warfare plugin for WordPress is vulnerable to Remote Code Execution in versions up to, an
Unrestricted upload of dangerous file types in the C21 Live Encoder and Live Mosaic product, version