CVE-2026-98526llc: reserve device headroom for allocated frames
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
Linux Linux linux:linux (from the name) | from bf9ae5386bca8836c16e69ab8fdbe46767d7452a before 018020f5a48cc86fdd6dc2d380f6c70443ae7639; from bf9ae5386bca8836c16e69ab8fdbe46767d7452a before 3a3f57c4061d9e9cc3bc04205d36ce41ae3406c1; from bf9ae5386bca8836c16e69ab8fdbe46767d7452a before 7c38524b2b2456bd33cb360420da6cbf9cad1b33; from bf9ae5386bca8836c16e69ab8fdbe46767d7452a before 1937222c2511ac91377d39f28106c34734f5f8c6; from bf9ae5386bca8836c16e69ab8fdbe46767d7452a before 16ceac2daa89dd16917bc488ab05b9dd6961a603; from bf9ae5386bca8836c16e69ab8fdbe46767d7452a before e06f8b6e27cc616d3c587e9784c4a033eb310a16; from bf9ae5386bca8836c16e69ab8fdbe46767d7452a before 3361c93e417384ebf28003e0fb6d5304653d3b05; from bf9ae5386bca8836c16e69ab8fdbe46767d7452a before 72b5b9a28b996e09b8b5b944370c79851bb68f52 | CNA record |
References
- https://git.kernel.org/stable/c/018020f5a48cc86fdd6dc2d380f6c70443ae7639
- https://git.kernel.org/stable/c/3a3f57c4061d9e9cc3bc04205d36ce41ae3406c1
- https://git.kernel.org/stable/c/7c38524b2b2456bd33cb360420da6cbf9cad1b33
- https://git.kernel.org/stable/c/1937222c2511ac91377d39f28106c34734f5f8c6
- https://git.kernel.org/stable/c/16ceac2daa89dd16917bc488ab05b9dd6961a603
- https://git.kernel.org/stable/c/e06f8b6e27cc616d3c587e9784c4a033eb310a16
- https://git.kernel.org/stable/c/3361c93e417384ebf28003e0fb6d5304653d3b05
- https://git.kernel.org/stable/c/72b5b9a28b996e09b8b5b944370c79851bb68f52
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.