NULL Pointer Dereference Affecting torvalds/linux package, versions [5.4,5.10.271)[5.11,5.15.222)[5.16,6.1.189)[6.2,6.6.158)[6.7,6.12.111)[6.13,6.18.53)[6.19,7.2.7)
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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- published11 Oct 2026
- disclosed25 Sept 2026
- creditUnknown
Introduced: 25 Sep 2026
NewCVE-2026-98027 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7 or higher.
Overview
Affected versions of this package are vulnerable to NULL Pointer Dereference in the mv88e6xxx_get_rxnfc process. An attacker can cause a kernel crash or corrupt kernel memory by passing a specially crafted value for the rule_cnt field through the ETHTOOL_GRXCLSRLALL ioctl, leading to a NULL pointer dereference or out-of-bounds write. This is only exploitable if policy rules have already been installed on the target DSA port by an administrator.
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