NULL Pointer Dereference Affecting torvalds/linux package, versions [6.6.79,6.6.160)[6.12.16,6.12.113)[5.15.179,5.16)[6.1.129,6.2)[6.13,6.18.57)[6.19,7.2.11)
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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- published24 Oct 2026
- disclosed23 Oct 2026
- creditUnknown
Introduced: 23 Oct 2026
NewCVE-2026-99074 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 6.6.160, 6.12.113, 5.16, 6.2, 6.18.57, 7.2.11 or higher.
Overview
Affected versions of this package are vulnerable to NULL Pointer Dereference via the update_or_create_fnhe function. An attacker can cause a system crash or denial of service by triggering a race condition during nexthop group replacement in the IPv4 PMTU update process. This is only exploitable if the attacker has CAP_NET_ADMIN privileges in a network namespace, which can be obtained by a local user where unprivileged user namespaces are permitted.
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