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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
bf9ae5386bca8836c16e69ab8fdbe46767d7452a to < 018020f5a48cc86fdd6dc2d380f6c70443ae7639affectedbf9ae5386bca8836c16e69ab8fdbe46767d7452a to < 3a3f57c4061d9e9cc3bc04205d36ce41ae3406c1affectedbf9ae5386bca8836c16e69ab8fdbe46767d7452a to < 7c38524b2b2456bd33cb360420da6cbf9cad1b33affectedbf9ae5386bca8836c16e69ab8fdbe46767d7452a to < 1937222c2511ac91377d39f28106c34734f5f8c6affectedbf9ae5386bca8836c16e69ab8fdbe46767d7452a to < 16ceac2daa89dd16917bc488ab05b9dd6961a603affectedbf9ae5386bca8836c16e69ab8fdbe46767d7452a to < e06f8b6e27cc616d3c587e9784c4a033eb310a16affectedbf9ae5386bca8836c16e69ab8fdbe46767d7452a to < 3361c93e417384ebf28003e0fb6d5304653d3b05affectedbf9ae5386bca8836c16e69ab8fdbe46767d7452a to < 72b5b9a28b996e09b8b5b944370c79851bb68f52affected
Linux Linux
Default version status: affected
2.6.34affected0 to < 2.6.34unaffected5.10.271 to ≤ 5.10.*unaffected5.15.222 to ≤ 5.15.*unaffected6.1.189 to ≤ 6.1.*unaffected6.6.158 to ≤ 6.6.*unaffected6.12.112 to ≤ 6.12.*unaffected6.18.55 to ≤ 6.18.*unaffected7.2.9 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected
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 ↗