Description
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: lantiq_etop: fix memory disclosure When applying padding, the buffer is not zeroed, which results in memory disclosure. The mentioned data is observed on the wire. This patch uses skb_put_padto() to pad Ethernet frames properly. The mentioned function zeroes the expanded buffer. In case the packet cannot be padded it is silently dropped. Statistics are also not incremented. This driver does not support statistics in the old 32-bit format or the new 64-bit format. These will be added in the future. In its current form, the patch should be easily backported to stable versions. Ethernet MACs on Amazon-SE and Danube cannot do padding of the packets in hardware, so software padding must be applied.
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
504d4721ee8e432af4b5f196a08af38bc4dac5fe to < 905f06a34f960676e7dc77bea00f2f8fe18177adaffected504d4721ee8e432af4b5f196a08af38bc4dac5fe to < 60c068444c20bf9a3e22b65b5f6f3d9edc852931affected504d4721ee8e432af4b5f196a08af38bc4dac5fe to < 185df159843d30fb71f821e7ea4368c2a3bfcd36affected504d4721ee8e432af4b5f196a08af38bc4dac5fe to < 469856f76f4802c5d7e3d20e343185188de1e2dbaffected504d4721ee8e432af4b5f196a08af38bc4dac5fe to < 2bf4c101d7c99483b8b15a0c8f881e3f399f7e18affected504d4721ee8e432af4b5f196a08af38bc4dac5fe to < e66e38d07b31e177ca430758ed97fbc79f27d966affected504d4721ee8e432af4b5f196a08af38bc4dac5fe to < 1097bf16501ed5e35358d848b0a94ad2830b0f65affected504d4721ee8e432af4b5f196a08af38bc4dac5fe to < 431b122933b197820d319eb3987a67d04346ce9eaffected504d4721ee8e432af4b5f196a08af38bc4dac5fe to < 45c0de18ff2dc9af01236380404bbd6a46502c69affected
Linux Linux
Default version status: affected
3.0affected0 to < 3.0unaffected4.19.323 to ≤ 4.19.*unaffected5.4.285 to ≤ 5.4.*unaffected5.10.227 to ≤ 5.10.*unaffected5.15.168 to ≤ 5.15.*unaffected6.1.113 to ≤ 6.1.*unaffected6.6.55 to ≤ 6.6.*unaffected6.10.14 to ≤ 6.10.*unaffected6.11.3 to ≤ 6.11.*unaffected6.12 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/905f06a34f960676e7dc77bea00f2f8fe18177ad ↗
- https://git.kernel.org/stable/c/60c068444c20bf9a3e22b65b5f6f3d9edc852931 ↗
- https://git.kernel.org/stable/c/185df159843d30fb71f821e7ea4368c2a3bfcd36 ↗
- https://git.kernel.org/stable/c/469856f76f4802c5d7e3d20e343185188de1e2db ↗
- https://git.kernel.org/stable/c/2bf4c101d7c99483b8b15a0c8f881e3f399f7e18 ↗
- https://git.kernel.org/stable/c/e66e38d07b31e177ca430758ed97fbc79f27d966 ↗
- https://git.kernel.org/stable/c/1097bf16501ed5e35358d848b0a94ad2830b0f65 ↗
- https://git.kernel.org/stable/c/431b122933b197820d319eb3987a67d04346ce9e ↗
- https://git.kernel.org/stable/c/45c0de18ff2dc9af01236380404bbd6a46502c69 ↗
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html ↗