Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected bf9ae5386bca8836c16e69ab8fdbe46767d7452a before 018020f5a48cc86fdd6dc2d380f6c70443ae7639; affected bf9ae5386bca8836c16e69ab8fdbe46767d7452a before 3a3f57c4061d9e9cc3bc04205d36ce41ae3406c1; affected bf9ae5386bca8836c16e69ab8fdbe46767d7452a before 7c38524b2b2456bd33cb360420da6cbf9cad1b33; affected bf9ae5386bca8836c16e69ab8fdbe46767d7452a before 1937222c2511ac91377d39f28106c34734f5f8c6; affected bf9ae5386bca8836c16e69ab8fdbe46767d7452a before 16ceac2daa89dd16917bc488ab05b9dd6961a603; affected bf9ae5386bca8836c16e69ab8fdbe46767d7452a before e06f8b6e27cc616d3c587e9784c4a033eb310a16; affected bf9ae5386bca8836c16e69ab8fdbe46767d7452a before 3361c93e417384ebf28003e0fb6d5304653d3b05; affected bf9ae5386bca8836c16e69ab8fdbe46767d7452a before 72b5b9a28b996e09b8b5b944370c79851bb68f52 |
| Linux / Linux | affected 2.6.34; unaffected 0 before 2.6.34; unaffected 5.10.271 through 5.10.*; unaffected 5.15.222 through 5.15.*; unaffected 6.1.189 through 6.1.*; unaffected 6.6.158 through 6.6.*; unaffected 6.12.112 through 6.12.*; unaffected 6.18.55 through 6.18.*; unaffected 7.2.9 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
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