Description
In the Linux kernel, the following vulnerability has been resolved: macvlan: enforce a consistent minimal mtu macvlan should enforce a minimal mtu of 68, even at link creation. This patch avoids the current behavior (which could lead to crashes in ipv6 stack if the link is brought up) $ ip link add macvlan1 link eno1 mtu 8 type macvlan # This should fail ! $ ip link sh dev macvlan1 5: macvlan1@eno1: <BROADCAST,MULTICAST> mtu 8 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ether 02:47:6c:24:74:82 brd ff:ff:ff:ff:ff:ff $ ip link set macvlan1 mtu 67 Error: mtu less than device minimum. $ ip link set macvlan1 mtu 68 $ ip link set macvlan1 mtu 8 Error: mtu less than device minimum.
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
91572088e3fdbf4fe31cf397926d8b890fdb3237 to < d2fee7d121d189c6dc905b727d60e7043a6655bbaffected91572088e3fdbf4fe31cf397926d8b890fdb3237 to < 650137a7c0b2892df2e5b0bc112d7b09a78c93c8affected91572088e3fdbf4fe31cf397926d8b890fdb3237 to < a62aa84fe19eb24d083d600a074c009a0a66d4f3affected91572088e3fdbf4fe31cf397926d8b890fdb3237 to < e929ec98c0c3b10d9c07f3776df0c1a02d7a763eaffected91572088e3fdbf4fe31cf397926d8b890fdb3237 to < e41cbf98df22d08402e65174d147cbb187fe1a33affected91572088e3fdbf4fe31cf397926d8b890fdb3237 to < 2b055c719d8f94c15ec9b7659978133030c6a353affected91572088e3fdbf4fe31cf397926d8b890fdb3237 to < b64085b00044bdf3cd1c9825e9ef5b2e0feae91aaffected
Linux Linux
Default version status: affected
4.10affected0 to < 4.10unaffected4.14.300 to ≤ 4.14.*unaffected4.19.267 to ≤ 4.19.*unaffected5.4.225 to ≤ 5.4.*unaffected5.10.156 to ≤ 5.10.*unaffected5.15.80 to ≤ 5.15.*unaffected6.0.10 to ≤ 6.0.*unaffected6.1 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/d2fee7d121d189c6dc905b727d60e7043a6655bb ↗
- https://git.kernel.org/stable/c/650137a7c0b2892df2e5b0bc112d7b09a78c93c8 ↗
- https://git.kernel.org/stable/c/a62aa84fe19eb24d083d600a074c009a0a66d4f3 ↗
- https://git.kernel.org/stable/c/e929ec98c0c3b10d9c07f3776df0c1a02d7a763e ↗
- https://git.kernel.org/stable/c/e41cbf98df22d08402e65174d147cbb187fe1a33 ↗
- https://git.kernel.org/stable/c/2b055c719d8f94c15ec9b7659978133030c6a353 ↗
- https://git.kernel.org/stable/c/b64085b00044bdf3cd1c9825e9ef5b2e0feae91a ↗