CVE-2024-27393: xen-netfront: Add missing skb_mark_for_recycle
Vulnerability summary
CVE-2024-27393 is a high (CVSS 7.5) vulnerability in linux. EPSS estimates a 0.77% chance of exploitation in the next 30 days, higher than 55.7% of scored vulnerabilities.
Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 20 · Related 16Timeline
- 09-05-2024PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
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").
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.77%
Chance of exploitation in the next 30 days
Percentile
56%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.77% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu104 products
- linux< 5.15.0-116.126
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1065.71
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c, < 4143b9479caa29bb2380f3620dcbe16ea84eb3b1 | ≥ 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c, < 7c1250796b6c262b505a46192f4716b8c6a6a8c6 | ≥ 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c, < 27aa3e4b3088426b7e34584274ad45b5afaf7629 | ≥ 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c, < c8b7b2f158d9d4fb89cd2f68244af154f7549bb4 | ≥ 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c, < 037965402a010898d34f4e35327d22c0a95cd51f | 5.9
- linux_kernel≥ 5.9, < 5.15.154 | ≥ 5.16, < 6.1.85 | ≥ 6.2, < 6.6.26 | ≥ 6.7, < 6.8.5 | 6.9:rc1 | 6.9:rc2
Debian1 product
- linux< 6.1.85-1 | < 6.8.9-1
3 vendors · 107 products
