CVE-2024-49997

net: ethernet: lantiq_etop: fix memory disclosure

State: Published
Severity: Not scored
Published: Oct 21, 2024
Updated: Oct 15, 2026
Reserved: Oct 21, 2024

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	504d4721ee8e432af4b5f196a08af38bc4dac5fe to before 905f06a34f960676e7dc77bea00f2f8fe18177adAffected 504d4721ee8e432af4b5f196a08af38bc4dac5fe to before 60c068444c20bf9a3e22b65b5f6f3d9edc852931Affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe to before 185df159843d30fb71f821e7ea4368c2a3bfcd36Affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe to before 469856f76f4802c5d7e3d20e343185188de1e2dbAffected 504d4721ee8e432af4b5f196a08af38bc4dac5fe to before 2bf4c101d7c99483b8b15a0c8f881e3f399f7e18Affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe to before e66e38d07b31e177ca430758ed97fbc79f27d966Affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe to before 1097bf16501ed5e35358d848b0a94ad2830b0f65Affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe to before 431b122933b197820d319eb3987a67d04346ce9eAffected 504d4721ee8e432af4b5f196a08af38bc4dac5fe to before 45c0de18ff2dc9af01236380404bbd6a46502c69Affected
LinuxLinux	3.0Affected before 3.0Not affected 4.19.323 through 4.19.Not affected 5.4.285 through 5.4.Not affected 5.10.227 through 5.10.Not affected 5.15.168 through 5.15.Not affected 6.1.113 through 6.1.Not affected 6.6.55 through 6.6.Not affected 6.10.14 through 6.10.Not affected 6.11.3 through 6.11.Not affected 6.12 and laterNot affected

Product

Versions

LinuxLinux

504d4721ee8e432af4b5f196a08af38bc4dac5fe to before 905f06a34f960676e7dc77bea00f2f8fe18177adAffected
504d4721ee8e432af4b5f196a08af38bc4dac5fe to before 60c068444c20bf9a3e22b65b5f6f3d9edc852931Affected
504d4721ee8e432af4b5f196a08af38bc4dac5fe to before 185df159843d30fb71f821e7ea4368c2a3bfcd36Affected
504d4721ee8e432af4b5f196a08af38bc4dac5fe to before 469856f76f4802c5d7e3d20e343185188de1e2dbAffected
504d4721ee8e432af4b5f196a08af38bc4dac5fe to before 2bf4c101d7c99483b8b15a0c8f881e3f399f7e18Affected
504d4721ee8e432af4b5f196a08af38bc4dac5fe to before e66e38d07b31e177ca430758ed97fbc79f27d966Affected
504d4721ee8e432af4b5f196a08af38bc4dac5fe to before 1097bf16501ed5e35358d848b0a94ad2830b0f65Affected
504d4721ee8e432af4b5f196a08af38bc4dac5fe to before 431b122933b197820d319eb3987a67d04346ce9eAffected
504d4721ee8e432af4b5f196a08af38bc4dac5fe to before 45c0de18ff2dc9af01236380404bbd6a46502c69Affected

LinuxLinux

3.0Affected
before 3.0Not affected
4.19.323 through 4.19.*Not affected
5.4.285 through 5.4.*Not affected
5.10.227 through 5.10.*Not affected
5.15.168 through 5.15.*Not affected
6.1.113 through 6.1.*Not affected
6.6.55 through 6.6.*Not affected
6.10.14 through 6.10.*Not affected
6.11.3 through 6.11.*Not affected
6.12 and laterNot affected

References

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