IT

Tracker / CVE-2024-41090

CVE-2024-41090

High 8.8

In the Linux kernel, the following vulnerability has been resolved: tap: add missing verification for short frame The cited commit missed to check against the validity of the frame length in the tap_get_user_xdp() path, which could cause a corrupted skb to be sent downstack. Even before the skb is transmitted, the tap_get_user_xdp()-->skb_set_network_header() may assume the size is more than ETH_HLEN. Once transmitted, this could either cause out-of-bound access beyond the actual length, or confuse the underlayer with incorrect or inconsistent header length in the skb metadata. In the alternative path, tap_get_user() already prohibits short frame which has the length less than Ethernet header size from being transmitted. This is to drop any frame shorter than the Ethernet header size just like how tap_get_user() does. CVE: CVE-2024-41090

Affected products and versions

linux linux_kernel · 4.20 → 5.4.281
linux linux_kernel · 5.11 → 5.15.164
linux linux_kernel · 5.16 → 6.1.102
linux linux_kernel · 5.5 → 5.10.223
linux linux_kernel · 6.10 → 6.10.2
linux linux_kernel · 6.2 → 6.6.43
linux linux_kernel · 6.7 → 6.9.12

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References