CVE-2026-98526llc: reserve device headroom for allocated frames
- —Not scoredno CVSS score yet
- 0.22%Exploitation in 30 daysEPSS · top 87% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 23 days later
· 23 days later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.22% · top 87% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected bf9ae5386bca8836c16e69ab8fdbe46767d7452a – < 018020f5a48cc86fdd6dc2d380f6c70443ae7639
- affected bf9ae5386bca8836c16e69ab8fdbe46767d7452a – < 3a3f57c4061d9e9cc3bc04205d36ce41ae3406c1
- affected bf9ae5386bca8836c16e69ab8fdbe46767d7452a – < 7c38524b2b2456bd33cb360420da6cbf9cad1b33
- affected bf9ae5386bca8836c16e69ab8fdbe46767d7452a – < 1937222c2511ac91377d39f28106c34734f5f8c6
- affected bf9ae5386bca8836c16e69ab8fdbe46767d7452a – < 16ceac2daa89dd16917bc488ab05b9dd6961a603
- affected bf9ae5386bca8836c16e69ab8fdbe46767d7452a – < e06f8b6e27cc616d3c587e9784c4a033eb310a16
- affected bf9ae5386bca8836c16e69ab8fdbe46767d7452a – < 3361c93e417384ebf28003e0fb6d5304653d3b05
- affected bf9ae5386bca8836c16e69ab8fdbe46767d7452a – < 72b5b9a28b996e09b8b5b944370c79851bb68f52
- affected 2.6.34
- unaffected < 2.6.34
- unaffected 5.10.271 – ≤ 5.10.*
- unaffected 5.15.222 – ≤ 5.15.*
- unaffected 6.1.189 – ≤ 6.1.*
- unaffected 6.6.158 – ≤ 6.6.*
- unaffected 6.12.112 – ≤ 6.12.*
- unaffected 6.18.55 – ≤ 6.18.*
- unaffected 7.2.9 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/018020f5a48cc86fdd6dc2d380f6c70443ae7639 (opens in a new tab)
- https://git.kernel.org/stable/c/3a3f57c4061d9e9cc3bc04205d36ce41ae3406c1 (opens in a new tab)
- https://git.kernel.org/stable/c/7c38524b2b2456bd33cb360420da6cbf9cad1b33 (opens in a new tab)
- https://git.kernel.org/stable/c/1937222c2511ac91377d39f28106c34734f5f8c6 (opens in a new tab)
- https://git.kernel.org/stable/c/16ceac2daa89dd16917bc488ab05b9dd6961a603 (opens in a new tab)
- https://git.kernel.org/stable/c/e06f8b6e27cc616d3c587e9784c4a033eb310a16 (opens in a new tab)
- https://git.kernel.org/stable/c/3361c93e417384ebf28003e0fb6d5304653d3b05 (opens in a new tab)
- https://git.kernel.org/stable/c/72b5b9a28b996e09b8b5b944370c79851bb68f52 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-103571 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-98526)Record last updated .