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

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/018020f5a48cc86fdd6dc2d380f6c70443ae7639 cve-icon cve-icon
https://git.kernel.org/stable/c/16ceac2daa89dd16917bc488ab05b9dd6961a603 cve-icon cve-icon
https://git.kernel.org/stable/c/1937222c2511ac91377d39f28106c34734f5f8c6 cve-icon cve-icon
https://git.kernel.org/stable/c/3361c93e417384ebf28003e0fb6d5304653d3b05 cve-icon cve-icon
https://git.kernel.org/stable/c/3a3f57c4061d9e9cc3bc04205d36ce41ae3406c1 cve-icon cve-icon
https://git.kernel.org/stable/c/72b5b9a28b996e09b8b5b944370c79851bb68f52 cve-icon cve-icon
https://git.kernel.org/stable/c/7c38524b2b2456bd33cb360420da6cbf9cad1b33 cve-icon cve-icon
https://git.kernel.org/stable/c/e06f8b6e27cc616d3c587e9784c4a033eb310a16 cve-icon cve-icon
History

Sun, 18 Oct 2026 23:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119

Sun, 18 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
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.
Title llc: reserve device headroom for allocated frames
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-10-18T15:17:44.018Z

Reserved: 2026-09-25T10:25:14.355Z

Link: CVE-2026-98526

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-18T16:17:04.063

Modified: 2026-10-18T16:17:04.063

Link: CVE-2026-98526

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-18T23:30:14Z

Weaknesses