Answer in brief
CVE-2026-98526 records a Unknown severity vulnerability in llc: reserve device headroom for allocated frames. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=bf9ae5386bca8836c16e69ab8fdbe46767d7452a <018020f5a48cc86fdd6dc2d380f6c70443ae7639 || >=bf9ae5386bca8836c16e69ab8fdbe46767d7452a <3a3f57c4061d9e9cc3bc04205d36ce41ae3406c1 || >=bf9ae5386bca8836c16e69ab8fdbe46767d7452a <7c38524b2b2456bd33cb360420da6cbf9cad1b33 || >=bf9ae5386bca8836c16e69ab8fdbe46767d7452a <1937222c2511ac91377d39f28106c34734f5f8c6 || >=bf9ae5386bca8836c16e69ab8fdbe46767d7452a <16ceac2daa89dd16917bc488ab05b9dd6961a603 || >=bf9ae5386bca8836c16e69ab8fdbe46767d7452a <e06f8b6e27cc616d3c587e9784c4a033eb310a16 || >=bf9ae5386bca8836c16e69ab8fdbe46767d7452a <3361c93e417384ebf28003e0fb6d5304653d3b05 || >=bf9ae5386bca8836c16e69ab8fdbe46767d7452a <72b5b9a28b996e09b8b5b944370c79851bb68f52 | 018020f5a48cc86fdd6dc2d380f6c70443ae7639, 3a3f57c4061d9e9cc3bc04205d36ce41ae3406c1, 7c38524b2b2456bd33cb360420da6cbf9cad1b33, 1937222c2511ac91377d39f28106c34734f5f8c6, 16ceac2daa89dd16917bc488ab05b9dd6961a603, e06f8b6e27cc616d3c587e9784c4a033eb310a16, 3361c93e417384ebf28003e0fb6d5304653d3b05, 72b5b9a28b996e09b8b5b944370c79851bb68f52 |
| Linux/Linuxgeneric | 2.6.34 | Not reported |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 18, 2026
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.
Quoted source text, attributed separately from HOL analysis.