BlackTreeIndependent security intelligence

Full vulnerability report · 2024

CVE-2024-26953High confidence

net: esp: fix bad handling of pages from page_pool

Linux · Linux

9.8CriticalCVSS 3.1

Recommended action

Within 72 hours

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.

Patch available

Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

11 package states

Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Ubuntu release	Source package	Vendor state	Fixed version	Evidence
Ubuntu 24.04 LTSnoble · standard archive	`linux`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-aws`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gcp`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gke`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-ibm`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-lowlatency`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-oem-6.8`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-oracle`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-raspi`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-riscv`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 8 Sept 2026

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current

ENISA EUVD identifier

EUVD-2024-24215

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state: Present in the current official mapping
Known exploitation: Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score: Not supplied in the stored EUVD record
Advisory evidence: No linked advisory details stored yet

Recommended actionWithin 72 hours

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.

Patch available

What, why and how

In the Linux kernel, the following vulnerability has been resolved: net: esp: fix bad handling of pages from page_pool When the skb is reorganized during esp_output (!esp->inline), the pages coming from the original skb fragments are supposed to be released back to the system through put_page. But if the skb fragment pages are originating from a page_pool, calling put_page on them will trigger a page_pool leak which will eventually result in a crash. This leak can be easily observed when using CONFIG_DEBUG_VM and doing ipsec + gre (non offloaded) forwarding: BUG: Bad page state in process ksoftirqd/16 pfn:1451b6 page:00000000de2b8d32 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1451b6000 pfn:0x1451b6 flags: 0x200000000000000(node=0|zone=2) page_type: 0xffffffff() raw: 0200000000000000 dead000000000040 ffff88810d23c000 0000000000000000 raw: 00000001451b6000 0000000000000001 00000000ffffffff 0000000000000000 page dumped because: page_pool leak Modules linked in: ip_gre gre mlx5_ib mlx5_core xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat nf_nat xt_addrtype br_netfilter rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_iscsi ib_umad rdma_cm ib_ipoib iw_cm ib_cm ib_uverbs ib_core overlay zram zsmalloc fuse [last unloaded: mlx5_core] CPU: 16 PID: 96 Comm: ksoftirqd/16 Not tainted 6.8.0-rc4+ #22 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x36/0x50 bad_page+0x70/0xf0 free_unref_page_prepare+0x27a/0x460 free_unref_page+0x38/0x120 esp_ssg_unref.isra.0+0x15f/0x200 esp_output_tail+0x66d/0x780 esp_xmit+0x2c5/0x360 validate_xmit_xfrm+0x313/0x370 ? validate_xmit_skb+0x1d/0x330 validate_xmit_skb_list+0x4c/0x70 sch_direct_xmit+0x23e/0x350 __dev_queue_xmit+0x337/0xba0 ? nf_hook_slow+0x3f/0xd0 ip_finish_output2+0x25e/0x580 iptunnel_xmit+0x19b/0x240 ip_tunnel_xmit+0x5fb/0xb60 ipgre_xmit+0x14d/0x280 [ip_gre] dev_hard_start_xmit+0xc3/0x1c0 __dev_queue_xmit+0x208/0xba0 ? nf_hook_slow+0x3f/0xd0 ip_finish_output2+0x1ca/0x580 ip_sublist_rcv_finish+0x32/0x40 ip_sublist_rcv+0x1b2/0x1f0 ? ip_rcv_finish_core.constprop.0+0x460/0x460 ip_list_rcv+0x103/0x130 __netif_receive_skb_list_core+0x181/0x1e0 netif_receive_skb_list_internal+0x1b3/0x2c0 napi_gro_receive+0xc8/0x200 gro_cell_poll+0x52/0x90 __napi_poll+0x25/0x1a0 net_rx_action+0x28e/0x300 __do_softirq+0xc3/0x276 ? sort_range+0x20/0x20 run_ksoftirqd+0x1e/0x30 smpboot_thread_fn+0xa6/0x130 kthread+0xcd/0x100 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x31/0x50 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork_asm+0x11/0x20 </TASK> The suggested fix is to introduce a new wrapper (skb_page_unref) that covers page refcounting for page_pool pages as well.

What

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

What

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path: a network path → vulnerable operation → disrupt the affected service
Attack surface: Network
Privileges required: None: unauthenticated exploitation is possible
User interaction: None
Attack complexity: Low: no specialised conditions are recorded
Security boundary: Unchanged: impact remains within the vulnerable component's security authority
Weakness ? CWE means Common Weakness Enumeration.: CWE not yet assigned
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land: No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.

NetworkUnauthenticatedDenial of service

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2024-24215Official EUVD mapping

0 linked advisory records.

Official EUVD record

BSI · German · WID-SEC-W-2024-1008Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen oder sonstige Auswirkungen zu verursachen.

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0326Multiples vulnérabilités dans les produits VMware

d?id=CVE-2024-26807 Référence CVE CVE-2024-26842 https://www.cve.org/CVERecord?id=CVE-2024-26842 Référence CVE CVE-2024-26844 https://www.cve.org/CVERecord?id=CVE-2024-26844 Référence CVE CVE-2024-26853 https://www.cve.org/CVERecord?id=CVE-2024-26853 Référence CVE CVE-2024-26866 https://www.cve.org/CVERecord?id=CVE-2024-26866 Référence CVE CVE-2024-26869 https://www.cve.org/CVERecord?id=CVE-2024-26869 Référence CVE CVE-2024-26876 https://www.cve.org/CVERecord?id=CVE-2024-26876 Référence CVE CVE-2024-26938 https://www.cve.org/CVERecord?id=CVE-2024-26938 Référence CVE CVE-2024-26948 https://www.cve.org/CVERecord?id=CVE-2024-26948 Référence CVE CVE-2024-26953 https://www.cve.org/CVERecord?id=CVE-2024-26953 Référence CVE CVE-2024-26954 https://www.cve.org/CVERecord?id=CVE-2024-26954 Référence CVE CVE-2024-26983 https://www.cve.org/CVERecord?id=CVE-2024-26983 Référence CVE CVE-2024-27002 https://www.cve.org/CVERecord?id=CVE-2024-27002 Référence CVE CVE-2024-27005 https://www.cve.org/CVERecord?id=CVE-2024-27005 Référence CVE CVE-2024-27010 https://www.cve.org/CVERecord?id=CVE-2024-27010 Référence CVE CVE-2024-27011 https://www.cve.org/CVERecord?id=CVE-2024-27011 Référence CVE CVE-2024-27014 https://www.cve.org/CVERecord?id=CVE-2024-27014 Référence CVE CVE-2024-27025 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0316Multiples vulnérabilités dans les produits VMware

Official advisory

CERT-FR · French · CERTFR-2025-AVI-1057Multiples vulnérabilités dans les produits VMware

d?id=CVE-2024-26815 Référence CVE CVE-2024-26818 https://www.cve.org/CVERecord?id=CVE-2024-26818 Référence CVE CVE-2024-26831 https://www.cve.org/CVERecord?id=CVE-2024-26831 Référence CVE CVE-2024-26837 https://www.cve.org/CVERecord?id=CVE-2024-26837 Référence CVE CVE-2024-26838 https://www.cve.org/CVERecord?id=CVE-2024-26838 Référence CVE CVE-2024-26892 https://www.cve.org/CVERecord?id=CVE-2024-26892 Référence CVE CVE-2024-26899 https://www.cve.org/CVERecord?id=CVE-2024-26899 Référence CVE CVE-2024-26918 https://www.cve.org/CVERecord?id=CVE-2024-26918 Référence CVE CVE-2024-26933 https://www.cve.org/CVERecord?id=CVE-2024-26933 Référence CVE CVE-2024-26953 https://www.cve.org/CVERecord?id=CVE-2024-26953 Référence CVE CVE-2024-26964 https://www.cve.org/CVERecord?id=CVE-2024-26964 Référence CVE CVE-2024-26975 https://www.cve.org/CVERecord?id=CVE-2024-26975 Référence CVE CVE-2024-26987 https://www.cve.org/CVERecord?id=CVE-2024-26987 Référence CVE CVE-2024-26989 https://www.cve.org/CVERecord?id=CVE-2024-26989 Référence CVE CVE-2024-26990 https://www.cve.org/CVERecord?id=CVE-2024-26990 Référence CVE CVE-2024-26992 https://www.cve.org/CVERecord?id=CVE-2024-26992 Référence CVE CVE-2024-27003 https://www.cve.org/CVERecord?id=CVE-2024-27003 Référence CVE CVE-2024-27012 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2024-AVI-1102Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2024-26761 Référence CVE CVE-2024-26767 https://www.cve.org/CVERecord?id=CVE-2024-26767 Référence CVE CVE-2024-26782 https://www.cve.org/CVERecord?id=CVE-2024-26782 Référence CVE CVE-2024-26801 https://www.cve.org/CVERecord?id=CVE-2024-26801 Référence CVE CVE-2024-26852 https://www.cve.org/CVERecord?id=CVE-2024-26852 Référence CVE CVE-2024-26864 https://www.cve.org/CVERecord?id=CVE-2024-26864 Référence CVE CVE-2024-26886 https://www.cve.org/CVERecord?id=CVE-2024-26886 Référence CVE CVE-2024-26906 https://www.cve.org/CVERecord?id=CVE-2024-26906 Référence CVE CVE-2024-26943 https://www.cve.org/CVERecord?id=CVE-2024-26943 Référence CVE CVE-2024-26953 https://www.cve.org/CVERecord?id=CVE-2024-26953 Référence CVE CVE-2024-27017 https://www.cve.org/CVERecord?id=CVE-2024-27017 Référence CVE CVE-2024-27026 https://www.cve.org/CVERecord?id=CVE-2024-27026 Référence CVE CVE-2024-27043 https://www.cve.org/CVERecord?id=CVE-2024-27043 Référence CVE CVE-2024-27051 https://www.cve.org/CVERecord?id=CVE-2024-27051 Référence CVE CVE-2024-27407 https://www.cve.org/CVERecord?id=CVE-2024-27407 Référence CVE CVE-2024-35888 https://www.cve.org/CVERecord?id=CVE-2024-35888 Référence CVE CVE-2024-35937 https://www.cve.org/CVERecord?id=CVE-2024-35937 Référence CVE CVE-2024-35980 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2024-AVI-0546Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2024-26944 Référence CVE CVE-2024-26945 https://www.cve.org/CVERecord?id=CVE-2024-26945 Référence CVE CVE-2024-26946 https://www.cve.org/CVERecord?id=CVE-2024-26946 Référence CVE CVE-2024-26947 https://www.cve.org/CVERecord?id=CVE-2024-26947 Référence CVE CVE-2024-26948 https://www.cve.org/CVERecord?id=CVE-2024-26948 Référence CVE CVE-2024-26949 https://www.cve.org/CVERecord?id=CVE-2024-26949 Référence CVE CVE-2024-26950 https://www.cve.org/CVERecord?id=CVE-2024-26950 Référence CVE CVE-2024-26951 https://www.cve.org/CVERecord?id=CVE-2024-26951 Référence CVE CVE-2024-26952 https://www.cve.org/CVERecord?id=CVE-2024-26952 Référence CVE CVE-2024-26953 https://www.cve.org/CVERecord?id=CVE-2024-26953 Référence CVE CVE-2024-26954 https://www.cve.org/CVERecord?id=CVE-2024-26954 Référence CVE CVE-2024-26955 https://www.cve.org/CVERecord?id=CVE-2024-26955 Référence CVE CVE-2024-26956 https://www.cve.org/CVERecord?id=CVE-2024-26956 Référence CVE CVE-2024-26957 https://www.cve.org/CVERecord?id=CVE-2024-26957 Référence CVE CVE-2024-26958 https://www.cve.org/CVERecord?id=CVE-2024-26958 Référence CVE CVE-2024-26959 https://www.cve.org/CVERecord?id=CVE-2024-26959 Référence CVE CVE-2024-26960 https://www.cve.org/CVERecord?id=CVE-2024-26960 Référence CVE CVE-2024-26961 https://www.cve.org/CVERecord?id=

Official advisory

Patch and workaround

Operational remediation based on structured source evidence.

Status ? Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.: Patch available
Affected: 6a5bcd84e886a9a91982e515c539529c28acdcc2 < 8291b4eac429c480386669444c6377573f5d8664; 6a5bcd84e886a9a91982e515c539529c28acdcc2 < 1abb20a5f4b02fb3020f88456fc1e6069b3cdc45; 6a5bcd84e886a9a91982e515c539529c28acdcc2 < f278ff9db67264715d0d50e3e75044f8b78990f4; 6a5bcd84e886a9a91982e515c539529c28acdcc2 < c3198822c6cb9fb588e446540485669cc81c5d34; 5.14
Fixed: < 5.14; 6.6.24 ≤ 6.6.*; 6.7.12 ≤ 6.7.*; 6.8.3 ≤ 6.8.*; 6.9 ≤ *
Action: Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround: No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.

Evidence and provenance

Published 1 May 2024 · Last source change 5 Aug 2026, 11:28 UTC · CWE not yet assigned

CVE recordCVE.org · 5.2

CVSS sourceCNA

EPSS source

The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.

FIRST · tracked since 2026-08-14

European sourceENISA EUVD · EUVD-2024-24215

Product sourceCNA

Remediation sourceCVE/CNA references

CWE sourceUnavailable

NVD statusNVD modified after enrichment

Missing structured fields: CWE classification. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

2024-05-01CVE published

2026-08-05Fixed release or patch reference recorded

ENISA EUVD · EUVD-2024-24215↗CVE authority or vendor reference↗Patch or update reference↗Patch or update reference↗Patch or update reference↗Official CVE record (CNA and ADP data)↗NVD record↗

Technical terms and abbreviations used in this report

CVE: Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS: Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS: Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE: Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA: CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP: Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD: National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT: A computer security incident response team that publishes warnings or coordinates incident response.
PoC: Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF: Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL: Living off the land: abuse of legitimate tools or system functions during an attack.

net: esp: fix bad handling of pages from page_pool

National CERT insights ?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

EUVD-2024-24215

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

National CERT insights
?
CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.