CVE-2026-98526None▾ SunlitIn 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 devic…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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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.
Linux >= bf9ae5386bca8836c16e69ab8fdbe46767d7452a < 018020f5a48cc86fdd6dc2d380f6c70443ae7639Linux >= bf9ae5386bca8836c16e69ab8fdbe46767d7452a < 3a3f57c4061d9e9cc3bc04205d36ce41ae3406c1Linux >= bf9ae5386bca8836c16e69ab8fdbe46767d7452a < 7c38524b2b2456bd33cb360420da6cbf9cad1b33Linux >= bf9ae5386bca8836c16e69ab8fdbe46767d7452a < 1937222c2511ac91377d39f28106c34734f5f8c6Linux >= bf9ae5386bca8836c16e69ab8fdbe46767d7452a < 16ceac2daa89dd16917bc488ab05b9dd6961a603Linux >= bf9ae5386bca8836c16e69ab8fdbe46767d7452a < e06f8b6e27cc616d3c587e9784c4a033eb310a16Linux >= bf9ae5386bca8836c16e69ab8fdbe46767d7452a < 3361c93e417384ebf28003e0fb6d5304653d3b05Linux >= bf9ae5386bca8836c16e69ab8fdbe46767d7452a < 72b5b9a28b996e09b8b5b944370c79851bb68f52Linux 2.6.34Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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