CVE-2024-27393: Linux Kernel

High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: xen-netfront: Add missing skb_mark_for_recycle Notice that skb_mark_for_recycle() is introduced later than fixes tag in commit 6a5bcd84e886 ("page_pool: Allow drivers to hint on SKB recycling"). It is believed that fixes tag were missing a call to page_pool_release_page() between v5.9 to v5.14, after which is should have used skb_mark_for_recycle(). Since v6.6 the call page_pool_release_page() were removed (in commit 535b9c61bdef ("net: page_pool: hide page_pool_release_page()") and remaining callers converted (in commit 6bfef2ec0172 ("Merge branch 'net-page_pool-remove-page_pool_release_page'")). This leak became visible in v6.8 via commit dba1b8a7ab68 ("mm/page_pool: catch page_pool memory leaks").

Affected products

• Linux Linux Kernel: from 5.9, before 5.15.154 (fixed in 5.15.154); from 5.16, before 6.1.85 (fixed in 6.1.85); from 6.2, before 6.6.26 (fixed in 6.6.26); from 6.7, before 6.8.5 (fixed in 6.8.5); version 6.9 only

Published 2024-05-14. Last modified 2026-08-04.