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VULNERABILITIES

CVE-2026-98526 Details

Description

In the Linux kernel, the following vulnerability has been resolved: llc: reserve device headroom for allocated frames llc_alloc_frame() reserves link-layer headroom using the device type. This is insufficient for stacked Ethernet devices such as VLAN devices, where vlan_dev_hard_header() pushes a VLAN header before the lower device's Ethernet header. An LLC response on such a device can therefore underflow skb headroom in eth_header(). Use LL_RESERVED_SPACE() to account for the device's actual required headroom while preserving the existing LLC device-type check.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/018020f5a48cc86fdd6dc2d380f6c70443ae7639 kernel.org
https://git.kernel.org/stable/c/16ceac2daa89dd16917bc488ab05b9dd6961a603 kernel.org
https://git.kernel.org/stable/c/1937222c2511ac91377d39f28106c34734f5f8c6 kernel.org
https://git.kernel.org/stable/c/3361c93e417384ebf28003e0fb6d5304653d3b05 kernel.org
https://git.kernel.org/stable/c/3a3f57c4061d9e9cc3bc04205d36ce41ae3406c1 kernel.org

see all 8 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-98526
NVD Published Date:
Oct 18, 2026
NVD Last Modified:
Oct 19, 2026
Source:
kernel.org
CVE-2026-98526 Details - Not Deferred