high 7.5

CVE-2024-27393 json

xen-netfront: Add missing skb_mark_for_recycle

published 2024-05-09 2 y ago modified 2026-08-05 3 mo ago also EUVD-2024-24597

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits: 0; none known

In the Linux kernel, the following vulnerability has been resolved:

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").

Patch / fix

fixed in 1 distros 6 links 5

Linux Linux 5.15.154, 6.1.85, 6.6.26, 6.8.5, 6.9

debian ubuntu red hat suse almalinux rocky linux

linux Debian 12 6.1.85-1
linux Debian 14, Debian 13 6.8.9-1

debian advisories DEBIAN-CVE-2024-27393

linux Ubuntu 22.04 LTS 5.15.0-116.126
linux-aws Ubuntu 22.04 LTS 5.15.0-1065.71
linux-gcp Ubuntu 22.04 LTS 5.15.0-1064.72
linux-gke Ubuntu 22.04 LTS 5.15.0-1062.68
linux-ibm Ubuntu 22.04 LTS 5.15.0-1058.61
linux-kvm Ubuntu 22.04 LTS 5.15.0-1062.67
linux-azure Ubuntu 22.04 LTS 5.15.0-1068.77
linux-gkeop Ubuntu 22.04 LTS 5.15.0-1048.55

ubuntu advisories UBUNTU-CVE-2024-27393

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

kernel RHEL 9 5.14.0-427.24.1.el9_4
rv RHEL 9 5.14.0-427.24.1.el9_4
perf RHEL 9 5.14.0-427.24.1.el9_4
rtla RHEL 9 5.14.0-427.24.1.el9_4
bpftool RHEL 9 7.3.0-427.24.1.el9_4
libperf RHEL 9 5.14.0-427.24.1.el9_4
kernel-rt RHEL 9 5.14.0-427.24.1.el9_4
kernel-64k RHEL 9 5.14.0-427.24.1.el9_4

red hat advisories RHSA-2024:5257 RHSA-2024:4349 RHSA-2024:4106 RHSA-2024:4108

kernel-rt Linux Micro 6.0 6.4.0-9.1
kernel-source-rt Linux Micro 6.0 6.4.0-9.1
kernel-source Linux Micro 6.0 6.4.0-18.1
kernel-default Linux Micro 6.0 6.4.0-18.1
kernel-kvmsmall Linux Micro 6.0 6.4.0-18.1
kernel-default-base Linux Micro 6.0 6.4.0-17.1.1.51
kernel-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.5.1
kernel-syms-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.5.1

suse advisories SUSE-SU-2025:20028-1 SUSE-SU-2025:20008-1 SUSE-SU-2024:2973-1 SUSE-SU-2024:2203-1 SUSE-SU-2024:2190-1 SUSE-SU-2024:2135-1

kernel AlmaLinux 9 5.14.0-427.24.1.el9_4
rv AlmaLinux 9 5.14.0-427.24.1.el9_4
perf AlmaLinux 9 5.14.0-427.24.1.el9_4
rtla AlmaLinux 9 5.14.0-427.24.1.el9_4
bpftool AlmaLinux 9 7.3.0-427.24.1.el9_4
libperf AlmaLinux 9 5.14.0-427.24.1.el9_4
kernel-rt AlmaLinux 9 5.14.0-427.24.1.el9_4
kernel-64k AlmaLinux 9 5.14.0-427.24.1.el9_4

almalinux advisories ALSA-2024:4349

kernel Rocky Linux 9 5.14.0-427.24.1.el9_4.cloud.3.0
kernel Rocky Linux 9 5.14.0-427.24.1.el9_4

rocky linux advisories RXSA-2024:4349 RLSA-2024:4349

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-27393 updated 2026-11-07 cvss 5.5

kernel: xen-netfront: Add missing skb_mark_for_recycle

Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more
affected: no fix planned “Out of support scope”
Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more
affected: no fix available
Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-debuginfo-common-s390x 5.14.0-284.71.1.el9_2, kernel-debuginfo-common-x86_64 5.14.0-284.71.1.el9_2, kernel-debuginfo-common-aarch64 5.14.0-284.71.1.el9_2, kernel-debuginfo-common-ppc64le 5.14.0-284.71.1.el9_2
fixed: vendor fix RHSA-2024:4108
Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-427.24.1.el9_4, perf 5.14.0-427.24.1.el9_4, rtla 5.14.0-427.24.1.el9_4, kernel-devel-matched 5.14.0-427.24.1.el9_4, kernel-64k-devel-matched 5.14.0-427.24.1.el9_4, kernel-debug-devel-matched 5.14.0-427.24.1.el9_4, +6 more
fixed: vendor fix RHSA-2024:4349
Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.112.1.el9_0, kernel-devel-matched 5.14.0-70.112.1.el9_0, kernel-debug-devel-matched 5.14.0-70.112.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.112.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.112.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.112.1.el9_0, +2 more
fixed: vendor fix RHSA-2024:5257
Red Hat Enterprise Linux AppStream EUS (v.9.2) perf 5.14.0-284.71.1.el9_2, rtla 5.14.0-284.71.1.el9_2, kernel-devel-matched 5.14.0-284.71.1.el9_2, kernel-64k-devel-matched 5.14.0-284.71.1.el9_2, kernel-debug-devel-matched 5.14.0-284.71.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.71.1.el9_2, +5 more
fixed: vendor fix RHSA-2024:4108
Red Hat Enterprise Linux BaseOS (v. 9) bpftool 7.3.0-427.24.1.el9_4, kernel 5.14.0-427.24.1.el9_4, kernel-64k 5.14.0-427.24.1.el9_4, kernel-core 5.14.0-427.24.1.el9_4, kernel-tools 5.14.0-427.24.1.el9_4, python3-perf 5.14.0-427.24.1.el9_4, +28 more
fixed: vendor fix RHSA-2024:4349
Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.112.1.el9_0, bpftool 5.14.0-70.112.1.el9_0, kernel-core 5.14.0-70.112.1.el9_0, kernel-tools 5.14.0-70.112.1.el9_0, python3-perf 5.14.0-70.112.1.el9_0, kernel-modules 5.14.0-70.112.1.el9_0, +14 more
fixed: vendor fix RHSA-2024:5257

show 5 more

Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool 7.0.0-284.71.1.el9_2, kernel 5.14.0-284.71.1.el9_2, kernel-64k 5.14.0-284.71.1.el9_2, kernel-core 5.14.0-284.71.1.el9_2, kernel-tools 5.14.0-284.71.1.el9_2, python3-perf 5.14.0-284.71.1.el9_2, +28 more
fixed: vendor fix RHSA-2024:4108
Red Hat Enterprise Linux CRB (v. 9) libperf 5.14.0-427.24.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.24.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.24.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.24.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.24.1.el9_4 Red Hat Enterprise Linux NFV (v. 9) kernel-rt 5.14.0-427.24.1.el9_4, kernel-rt-kvm 5.14.0-427.24.1.el9_4, kernel-rt-core 5.14.0-427.24.1.el9_4, kernel-rt-modules 5.14.0-427.24.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.24.1.el9_4, kernel-rt-debug-core 5.14.0-427.24.1.el9_4, +6 more
fixed: vendor fix RHSA-2024:4349
Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-core 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-modules 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-debug-core 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-modules-core 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-debug-modules 5.14.0-284.71.1.rt14.356.el9_2, +4 more Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-kvm 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-core 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-modules 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-debug-kvm 5.14.0-284.71.1.rt14.356.el9_2, kernel-rt-debug-core 5.14.0-284.71.1.rt14.356.el9_2, +6 more
fixed: vendor fix RHSA-2024:4106
Red Hat Enterprise Linux RT (v. 9) kernel-rt 5.14.0-427.24.1.el9_4, kernel-rt-core 5.14.0-427.24.1.el9_4, kernel-rt-modules 5.14.0-427.24.1.el9_4, kernel-rt-debug-core 5.14.0-427.24.1.el9_4, kernel-rt-modules-core 5.14.0-427.24.1.el9_4, kernel-rt-debug-modules 5.14.0-427.24.1.el9_4, +4 more
fixed: vendor fix RHSA-2024:4349
Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-doc 5.14.0-284.71.1.el9_2
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-05-31)

Exploit prediction

0.77% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA ADP	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

Linux Linux

Classification

Weakness

CWE-401 Missing Release of Memory after Effective Lifetime

Technology feeds

Linux kernel rss critical rss

References

git.kernel.org /stable/c/4143b9479caa29bb2380f3620dcbe16ea84eb3b1
patch
git.kernel.org /stable/c/7c1250796b6c262b505a46192f4716b8c6a6a8c6
patch
git.kernel.org /stable/c/27aa3e4b3088426b7e34584274ad45b5afaf7629
patch
git.kernel.org /stable/c/c8b7b2f158d9d4fb89cd2f68244af154f7549bb4
patch
git.kernel.org /stable/c/037965402a010898d34f4e35327d22c0a95cd51f
patch
xenbits.xen.org /xsa/advisory-457.html
third-party-advisory
openwall.com /lists/oss-security/2024/05/08/4
mailing-list, third-party-advisory

Sources

CVE List CVE-2024-27393
NVD CVE-2024-27393

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary