NULL Pointer Dereference Affecting torvalds/linux package, versions [3.12,4.19.228)[4.20,5.4.176)[5.5,5.10.96)[5.11,5.15.19)[5.16,5.16.5)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published8 Oct 2026
- disclosed20 Jun 2024
- creditUnknown
Introduced: 20 Jun 2024
CVE-2021-47619 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 4.19.228, 5.4.176, 5.10.96, 5.15.19, 5.16.5 or higher.
Overview
Affected versions of this package are vulnerable to NULL Pointer Dereference in the i40e_xdp process. An attacker can cause a system crash by triggering a NULL pointer dereference during queue allocation for XDP when the flow director VSI queue is placed immediately after the main VSI, leading to no queues being allocated for the main VSI when XDP is enabled.
Note: The Linux kernel project assigns a CVE to every bug fix it ships, whether or not the bug has been shown to be exploitable. This advisory was generated from that process and has not been individually assessed for exploitability. See the kernel's CVE process documentation: https://github.com/torvalds/linux/blob/master/Documentation/process/cve.rst