BlackTreeIndependent security intelligence

Full vulnerability report · 2024

CVE-2022-48840High confidence

iavf: Fix hang during reboot/shutdown

Linux · Linux

5.5MediumCVSS 3.1

Recommended action

Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available

Distribution package intelligence

Ubuntu vendor package status

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

1 package state

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-raspi-realtime`	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 4 Sept 2026

Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current

CVE-2022-48840 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitykernel: iavf: Fix hang during reboot/shutdown

150 known affected

The vendor explicitly identifies these products as affected by this CVE.

kernel as a component of Red Hat Enterprise Linux 6
kernel-abi-whitelists as a component of Red Hat Enterprise Linux 6
kernel-bootwrapper as a component of Red Hat Enterprise Linux 6
kernel-debug as a component of Red Hat Enterprise Linux 6
kernel-debug-devel as a component of Red Hat Enterprise Linux 6
kernel-devel as a component of Red Hat Enterprise Linux 6
kernel-doc as a component of Red Hat Enterprise Linux 6
kernel-firmware as a component of Red Hat Enterprise Linux 6
kernel-headers as a component of Red Hat Enterprise Linux 6
kernel-kdump as a component of Red Hat Enterprise Linux 6
kernel-kdump-devel as a component of Red Hat Enterprise Linux 6
kernel.src as a component of Red Hat Enterprise Linux 6

Summary: A possible system hang in reboot or shutdown scenario was found in the Linux kernel under specific circumstances. This may lead to loss of Availability upon system reboot.
Remediation: Affected

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-2022-53719

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 actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available

What, why and how

In the Linux kernel, the following vulnerability has been resolved: iavf: Fix hang during reboot/shutdown Recent commit 974578017fc1 ("iavf: Add waiting so the port is initialized in remove") adds a wait-loop at the beginning of iavf_remove() to ensure that port initialization is finished prior unregistering net device. This causes a regression in reboot/shutdown scenario because in this case callback iavf_shutdown() is called and this callback detaches the device, makes it down if it is running and sets its state to __IAVF_REMOVE. Later shutdown callback of associated PF driver (e.g. ice_shutdown) is called. That callback calls among other things sriov_disable() that calls indirectly iavf_remove() (see stack trace below). As the adapter state is already __IAVF_REMOVE then the mentioned loop is end-less and shutdown process hangs. The patch fixes this by checking adapter's state at the beginning of iavf_remove() and skips the rest of the function if the adapter is already in remove state (shutdown is in progress). Reproducer: 1. Create VF on PF driven by ice or i40e driver 2. Ensure that the VF is bound to iavf driver 3. Reboot [52625.981294] sysrq: SysRq : Show Blocked State [52625.988377] task:reboot state:D stack: 0 pid:17359 ppid: 1 f2 [52625.996732] Call Trace: [52625.999187] __schedule+0x2d1/0x830 [52626.007400] schedule+0x35/0xa0 [52626.010545] schedule_hrtimeout_range_clock+0x83/0x100 [52626.020046] usleep_range+0x5b/0x80 [52626.023540] iavf_remove+0x63/0x5b0 [iavf] [52626.027645] pci_device_remove+0x3b/0xc0 [52626.031572] device_release_driver_internal+0x103/0x1f0 [52626.036805] pci_stop_bus_device+0x72/0xa0 [52626.040904] pci_stop_and_remove_bus_device+0xe/0x20 [52626.045870] pci_iov_remove_virtfn+0xba/0x120 [52626.050232] sriov_disable+0x2f/0xe0 [52626.053813] ice_free_vfs+0x7c/0x340 [ice] [52626.057946] ice_remove+0x220/0x240 [ice] [52626.061967] ice_shutdown+0x16/0x50 [ice] [52626.065987] pci_device_shutdown+0x34/0x60 [52626.070086] device_shutdown+0x165/0x1c5 [52626.074011] kernel_restart+0xe/0x30 [52626.077593] __do_sys_reboot+0x1d2/0x210 [52626.093815] do_syscall_64+0x5b/0x1a0 [52626.097483] entry_SYSCALL_64_after_hwframe+0x65/0xca

What

Why

A malformed condition prevents a loop from making progress or terminating, allowing resource exhaustion.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Why

A malformed condition prevents a loop from making progress or terminating, allowing resource exhaustion.

How

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: local access → Loop with Unreachable Exit Condition ('Infinite Loop') → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface: Local
Privileges required: Low: a basic authenticated account is required
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: a standard category for the underlying weakness.: CWE-835 ↗
CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop'). The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land: The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.

CWE-835

Official authority intelligence

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

ENISA EUVD · EUVD-2022-53719Official EUVD mapping

0 linked advisory records.

Official EUVD record

BSI · German · WID-SEC-W-2024-1625Linux Kernel: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.

Official advisory

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

d?id=CVE-2022-48825 Référence CVE CVE-2022-48830 https://www.cve.org/CVERecord?id=CVE-2022-48830 Référence CVE CVE-2022-48831 https://www.cve.org/CVERecord?id=CVE-2022-48831 Référence CVE CVE-2022-48832 https://www.cve.org/CVERecord?id=CVE-2022-48832 Référence CVE CVE-2022-48834 https://www.cve.org/CVERecord?id=CVE-2022-48834 Référence CVE CVE-2022-48835 https://www.cve.org/CVERecord?id=CVE-2022-48835 Référence CVE CVE-2022-48836 https://www.cve.org/CVERecord?id=CVE-2022-48836 Référence CVE CVE-2022-48837 https://www.cve.org/CVERecord?id=CVE-2022-48837 Référence CVE CVE-2022-48839 https://www.cve.org/CVERecord?id=CVE-2022-48839 Référence CVE CVE-2022-48840 https://www.cve.org/CVERecord?id=CVE-2022-48840 Référence CVE CVE-2022-48843 https://www.cve.org/CVERecord?id=CVE-2022-48843 Référence CVE CVE-2022-48848 https://www.cve.org/CVERecord?id=CVE-2022-48848 Référence CVE CVE-2022-48850 https://www.cve.org/CVERecord?id=CVE-2022-48850 Référence CVE CVE-2022-48853 https://www.cve.org/CVERecord?id=CVE-2022-48853 Référence CVE CVE-2022-48858 https://www.cve.org/CVERecord?id=CVE-2022-48858 Référence CVE CVE-2022-48861 https://www.cve.org/CVERecord?id=CVE-2022-48861 Référence CVE CVE-2022-48863 https://www.cve.org/CVERecord?id=CVE-2022-48863 Référence CVE CVE-2022-48864 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2024-AVI-0717Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2022-48829 Référence CVE CVE-2022-48830 https://www.cve.org/CVERecord?id=CVE-2022-48830 Référence CVE CVE-2022-48831 https://www.cve.org/CVERecord?id=CVE-2022-48831 Référence CVE CVE-2022-48834 https://www.cve.org/CVERecord?id=CVE-2022-48834 Référence CVE CVE-2022-48835 https://www.cve.org/CVERecord?id=CVE-2022-48835 Référence CVE CVE-2022-48836 https://www.cve.org/CVERecord?id=CVE-2022-48836 Référence CVE CVE-2022-48837 https://www.cve.org/CVERecord?id=CVE-2022-48837 Référence CVE CVE-2022-48838 https://www.cve.org/CVERecord?id=CVE-2022-48838 Référence CVE CVE-2022-48839 https://www.cve.org/CVERecord?id=CVE-2022-48839 Référence CVE CVE-2022-48840 https://www.cve.org/CVERecord?id=CVE-2022-48840 Référence CVE CVE-2022-48841 https://www.cve.org/CVERecord?id=CVE-2022-48841 Référence CVE CVE-2022-48842 https://www.cve.org/CVERecord?id=CVE-2022-48842 Référence CVE CVE-2022-48843 https://www.cve.org/CVERecord?id=CVE-2022-48843 Référence CVE CVE-2022-48844 https://www.cve.org/CVERecord?id=CVE-2022-48844 Référence CVE CVE-2022-48846 https://www.cve.org/CVERecord?id=CVE-2022-48846 Référence CVE CVE-2022-48847 https://www.cve.org/CVERecord?id=CVE-2022-48847 Référence CVE CVE-2022-48849 https://www.cve.org/CVERecord?id=CVE-2022-48849 Référence CVE CVE-2022-48850 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2024-AVI-0693Multiples vulnérabilités dans le noyau Linux de SUSE

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: kernel as a component of Red Hat Enterprise Linux 6; kernel-abi-whitelists as a component of Red Hat Enterprise Linux 6; kernel-bootwrapper as a component of Red Hat Enterprise Linux 6; kernel-debug as a component of Red Hat Enterprise Linux 6; kernel-debug-devel as a component of Red Hat Enterprise Linux 6; kernel-devel as a component of Red Hat Enterprise Linux 6; kernel-doc as a component of Red Hat Enterprise Linux 6; kernel-firmware as a component of Red Hat Enterprise Linux 6; kernel-headers as a component of Red Hat Enterprise Linux 6; kernel-kdump as a component of Red Hat Enterprise Linux 6; kernel-kdump-devel as a component of Red Hat Enterprise Linux 6; kernel.src as a component of Red Hat Enterprise Linux 6; perf as a component of Red Hat Enterprise Linux 6; python-perf as a component of Red Hat Enterprise Linux 6; bpftool as a component of Red Hat Enterprise Linux 7; kernel as a component of Red Hat Enterprise Linux 7; kernel-abi-whitelists as a component of Red Hat Enterprise Linux 7; kernel-bootwrapper as a component of Red Hat Enterprise Linux 7; kernel-debug as a component of Red Hat Enterprise Linux 7; kernel-debug-devel as a component of Red Hat Enterprise Linux 7; kernel-devel as a component of Red Hat Enterprise Linux 7; kernel-doc as a component of Red Hat Enterprise Linux 7; kernel-headers as a component of Red Hat Enterprise Linux 7; kernel-kdump as a component of Red Hat Enterprise Linux 7; kernel-kdump-devel as a component of Red Hat Enterprise Linux 7; kernel-rt as a component of Red Hat Enterprise Linux 7; kernel-rt-debug as a component of Red Hat Enterprise Linux 7; kernel-rt-debug-devel as a component of Red Hat Enterprise Linux 7; kernel-rt-debug-kvm as a component of Red Hat Enterprise Linux 7; kernel-rt-devel as a component of Red Hat Enterprise Linux 7; and 120 more
Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action: Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround: No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.

Evidence and provenance

Published 16 Jul 2024 · Last source change 11 May 2026, 18:48 UTC · CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')

CVE recordCVE.org · 5.2

CVSS sourceNIST NVD

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-2022-53719

Product sourceVendor CSAF · Red Hat Product Security

Remediation sourceVendor CSAF · Red Hat Product Security

CWE sourceNIST NVD

NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

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.

2024-07-16CVE published

2026-05-11Fixed release or patch reference recorded

ENISA EUVD · EUVD-2022-53719↗Vendor CSAF · Red Hat Product Security↗CVE authority or vendor 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.

iavf: Fix hang during reboot/shutdown

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

EUVD-2022-53719

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.