Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: gve: guard XDP xmit NDO on existence of xdp queues In GVE, dedicated XDP queues only exist when an XDP program is installed and the interface is up. As such, the NDO XDP XMIT callback should return early if either of these conditions are false. In the case of no loaded XDP program, priv->num_xdp_queues=0 which can cause a divide-by-zero error, and in the case of interface down, num_xdp_queues remains untouched to persist XDP queue count for the next interface up, but the TX pointer itself would be NULL. The XDP xmit callback also needs to synchronize with a device transitioning from open to close. This synchronization will happen via the GVE_PRIV_FLAGS_NAPI_ENABLED bit along with a synchronize_net() call, which waits for any RCU critical sections at call-time to complete.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.4, < 6.6.70 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/35f44eed5828cf1bc7e760d1993ed8549ba41c7bPatch
- https://git.kernel.org/stable/c/cbe9eb2c39d09f3c8574febcfa39d8c09d0c7cb5Patch
- https://git.kernel.org/stable/c/ff7c2dea9dd1a436fc79d6273adffdcc4a7ffea3Patch
FAQ
What is CVE-2024-57932?
CVE-2024-57932 is a vulnerability with a CVSS score of 9.8 (CRITICAL). In the Linux kernel, the following vulnerability has been resolved: gve: guard XDP xmit NDO on existence of xdp queues In GVE, dedicated XDP queues only exist when an XDP program is installed and th...
How severe is CVE-2024-57932?
CVE-2024-57932 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2024-57932?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.