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Full vulnerability report · 2025
CVE-2022-50744High confidence

scsi: lpfc: Fix hard lockup when reading the rx_monitor from debugfs

Linux · Linux

UnscoredAssess manually
Recommended action
Needs assessment

No CVSS base score is available from the CNA, CISA ADP or NIST. Absence of a score is not evidence of low risk; review the vendor advisory, affected exposure and exploit evidence.

Patch available
Distribution package intelligence

Ubuntu vendor package status

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

9 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 releaseSource packageVendor stateFixed versionEvidence
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-6.11Affected, 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 feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gcp-6.11Affected, 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 feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-hwe-6.11Affected, 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 feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-lowlatency-hwe-6.11Affected, 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 feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-6.11Affected, 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 feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oem-6.11Affected, 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 feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, 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 feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-realtimeAffected, 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 feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-riscvAffected, 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 feedCanonical record ↗Source updated 11 Sept 2026
Optional official sources

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

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

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-2022-55817

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 actionNeeds assessment

No CVSS base score is available from the CNA, CISA ADP or NIST. Absence of a score is not evidence of low risk; review the vendor advisory, affected exposure and exploit evidence.

Patch available
01

What, why and how

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix hard lockup when reading the rx_monitor from debugfs During I/O and simultaneous cat of /sys/kernel/debug/lpfc/fnX/rx_monitor, a hard lockup similar to the call trace below may occur. The spin_lock_bh in lpfc_rx_monitor_report is not protecting from timer interrupts as expected, so change the strength of the spin lock to _irq. Kernel panic - not syncing: Hard LOCKUP CPU: 3 PID: 110402 Comm: cat Kdump: loaded exception RIP: native_queued_spin_lock_slowpath+91 [IRQ stack] native_queued_spin_lock_slowpath at ffffffffb814e30b _raw_spin_lock at ffffffffb89a667a lpfc_rx_monitor_record at ffffffffc0a73a36 [lpfc] lpfc_cmf_timer at ffffffffc0abbc67 [lpfc] __hrtimer_run_queues at ffffffffb8184250 hrtimer_interrupt at ffffffffb8184ab0 smp_apic_timer_interrupt at ffffffffb8a026ba apic_timer_interrupt at ffffffffb8a01c4f [End of IRQ stack] apic_timer_interrupt at ffffffffb8a01c4f lpfc_rx_monitor_report at ffffffffc0a73c80 [lpfc] lpfc_rx_monitor_read at ffffffffc0addde1 [lpfc] full_proxy_read at ffffffffb83e7fc3 vfs_read at ffffffffb833fe71 ksys_read at ffffffffb83402af do_syscall_64 at ffffffffb800430b entry_SYSCALL_64_after_hwframe at ffffffffb8a000ad

What

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix hard lockup when reading the rx_monitor from debugfs During I/O and simultaneous cat of /sys/kernel/debug/lpfc/fnX/rx_monitor, a hard lockup similar to the call trace below may occur. The spin_lock_bh in lpfc_rx_monitor_report is not protecting from timer interrupts as expected, so change the strength of the spin lock to _irq. Kernel panic - not syncing: Hard LOCKUP CPU: 3 PID: 110402 Comm: cat Kdump: loaded exception RIP: native_queued_spin_lock_slowpath+91 [IRQ stack] native_queued_spin_lock_slowpath at ffffffffb814e30b _raw_spin_lock at ffffffffb89a667a lpfc_rx_monitor_record at ffffffffc0a73a36 [lpfc] lpfc_cmf_timer at ffffffffc0abbc67 [lpfc] __hrtimer_run_queues at ffffffffb8184250 hrtimer_interrupt at ffffffffb8184ab0 smp_apic_timer_interrupt at ffffffffb8a026ba apic_timer_interrupt at ffffffffb8a01c4f [End of IRQ stack] apic_timer_interrupt at ffffffffb8a01c4f lpfc_rx_monitor_report at ffffffffc0a73c80 [lpfc] lpfc_rx_monitor_read at ffffffffc0addde1 [lpfc] full_proxy_read at ffffffffb83e7fc3 vfs_read at ffffffffb833fe71 ksys_read at ffffffffb83402af do_syscall_64 at ffffffffb800430b entry_SYSCALL_64_after_hwframe at ffffffffb8a000ad

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 the affected interface may attempt exploitation when the stated preconditions are met. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix hard lockup when reading the rx_monitor from debugfs During I/O and simultaneous cat of /sys/kernel/debug/lpfc/fnX/rx_monitor, a hard lockup similar to the call trace below may occur. The spin_lock_bh in lpfc_rx_monitor_report is not protecting from timer interrupts as expected, so change the strength of the spin lock to _irq. Kernel panic - not syncing: Hard LOCKUP CPU: 3 PID: 110402 Comm: cat Kdump: loaded exception RIP: native_queued_spin_lock_slowpath+91 [IRQ stack] native_queued_spin_lock_slowpath at ffffffffb814e30b _raw_spin_lock at ffffffffb89a667a lpfc_rx_monitor_record at ffffffffc0a73a36 [lpfc] lpfc_cmf_timer at ffffffffc0abbc67 [lpfc] __hrtimer_run_queues at ffffffffb8184250 hrtimer_interrupt at ffffffffb8184ab0 smp_apic_timer_interrupt at ffffffffb8a026ba apic_timer_interrupt at ffffffffb8a01c4f [End of IRQ stack] apic_timer_interrupt at ffffffffb8a01c4f lpfc_rx_monitor_report at ffffffffc0a73c80 [lpfc] lpfc_rx_monitor_read at ffffffffc0addde1 [lpfc] full_proxy_read at ffffffffb83e7fc3 vfs_read at ffffffffb833fe71 ksys_read at ffffffffb83402af do_syscall_64 at ffffffffb800430b entry_SYSCALL_64_after_hwframe at ffffffffb8a000ad

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 the affected interface may attempt exploitation when the stated preconditions are met. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

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
the affected interface → vulnerable operation → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Unspecified
Privileges required
Not stated in the selected CVSS metric
User interaction
Not stated in the selected CVSS metric
Attack complexity
Not stated in the selected CVSS metric
Security boundary
Not stated in the selected CVSS metric
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.
Not available from the selected scoring authority.
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.
A

Official authority intelligence

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

BSI · German · WID-SEC-2025-2929Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux-Kernel ausnutzen, um nicht näher spezifizierte Angriffe durchzuführen, die möglicherweise zu einer Denial-of-Service- Bedingung führen oder eine Speicherbeschädigung verursachen können.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20251231Security Bulletin 31 Dec 2025

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 31 Dec 2025, published on 31 December 2025. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0225Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2022-50728 Référence CVE CVE-2022-50730 https://www.cve.org/CVERecord?id=CVE-2022-50730 Référence CVE CVE-2022-50731 https://www.cve.org/CVERecord?id=CVE-2022-50731 Référence CVE CVE-2022-50732 https://www.cve.org/CVERecord?id=CVE-2022-50732 Référence CVE CVE-2022-50733 https://www.cve.org/CVERecord?id=CVE-2022-50733 Référence CVE CVE-2022-50735 https://www.cve.org/CVERecord?id=CVE-2022-50735 Référence CVE CVE-2022-50736 https://www.cve.org/CVERecord?id=CVE-2022-50736 Référence CVE CVE-2022-50740 https://www.cve.org/CVERecord?id=CVE-2022-50740 Référence CVE CVE-2022-50742 https://www.cve.org/CVERecord?id=CVE-2022-50742 Référence CVE CVE-2022-50744 https://www.cve.org/CVERecord?id=CVE-2022-50744 Référence CVE CVE-2022-50745 https://www.cve.org/CVERecord?id=CVE-2022-50745 Référence CVE CVE-2022-50747 https://www.cve.org/CVERecord?id=CVE-2022-50747 Référence CVE CVE-2022-50749 https://www.cve.org/CVERecord?id=CVE-2022-50749 Référence CVE CVE-2022-50750 https://www.cve.org/CVERecord?id=CVE-2022-50750 Référence CVE CVE-2022-50751 https://www.cve.org/CVERecord?id=CVE-2022-50751 Référence CVE CVE-2022-50752 https://www.cve.org/CVERecord?id=CVE-2022-50752 Référence CVE CVE-2022-50754 https://www.cve.org/CVERecord?id=CVE-2022-50754 Référence CVE CVE-2022-50755 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0170Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2022-50728 Référence CVE CVE-2022-50730 https://www.cve.org/CVERecord?id=CVE-2022-50730 Référence CVE CVE-2022-50731 https://www.cve.org/CVERecord?id=CVE-2022-50731 Référence CVE CVE-2022-50732 https://www.cve.org/CVERecord?id=CVE-2022-50732 Référence CVE CVE-2022-50733 https://www.cve.org/CVERecord?id=CVE-2022-50733 Référence CVE CVE-2022-50735 https://www.cve.org/CVERecord?id=CVE-2022-50735 Référence CVE CVE-2022-50736 https://www.cve.org/CVERecord?id=CVE-2022-50736 Référence CVE CVE-2022-50740 https://www.cve.org/CVERecord?id=CVE-2022-50740 Référence CVE CVE-2022-50742 https://www.cve.org/CVERecord?id=CVE-2022-50742 Référence CVE CVE-2022-50744 https://www.cve.org/CVERecord?id=CVE-2022-50744 Référence CVE CVE-2022-50745 https://www.cve.org/CVERecord?id=CVE-2022-50745 Référence CVE CVE-2022-50747 https://www.cve.org/CVERecord?id=CVE-2022-50747 Référence CVE CVE-2022-50749 https://www.cve.org/CVERecord?id=CVE-2022-50749 Référence CVE CVE-2022-50750 https://www.cve.org/CVERecord?id=CVE-2022-50750 Référence CVE CVE-2022-50751 https://www.cve.org/CVERecord?id=CVE-2022-50751 Référence CVE CVE-2022-50752 https://www.cve.org/CVERecord?id=CVE-2022-50752 Référence CVE CVE-2022-50754 https://www.cve.org/CVERecord?id=CVE-2022-50754 Référence CVE CVE-2022-50755 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0128Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2022-50703 Référence CVE CVE-2022-50709 https://www.cve.org/CVERecord?id=CVE-2022-50709 Référence CVE CVE-2022-50717 https://www.cve.org/CVERecord?id=CVE-2022-50717 Référence CVE CVE-2022-50726 https://www.cve.org/CVERecord?id=CVE-2022-50726 Référence CVE CVE-2022-50730 https://www.cve.org/CVERecord?id=CVE-2022-50730 Référence CVE CVE-2022-50731 https://www.cve.org/CVERecord?id=CVE-2022-50731 Référence CVE CVE-2022-50733 https://www.cve.org/CVERecord?id=CVE-2022-50733 Référence CVE CVE-2022-50736 https://www.cve.org/CVERecord?id=CVE-2022-50736 Référence CVE CVE-2022-50742 https://www.cve.org/CVERecord?id=CVE-2022-50742 Référence CVE CVE-2022-50744 https://www.cve.org/CVERecord?id=CVE-2022-50744 Référence CVE CVE-2022-50756 https://www.cve.org/CVERecord?id=CVE-2022-50756 Référence CVE CVE-2022-50758 https://www.cve.org/CVERecord?id=CVE-2022-50758 Référence CVE CVE-2022-50767 https://www.cve.org/CVERecord?id=CVE-2022-50767 Référence CVE CVE-2022-50814 https://www.cve.org/CVERecord?id=CVE-2022-50814 Référence CVE CVE-2022-50821 https://www.cve.org/CVERecord?id=CVE-2022-50821 Référence CVE CVE-2022-50823 https://www.cve.org/CVERecord?id=CVE-2022-50823 Référence CVE CVE-2022-50827 https://www.cve.org/CVERecord?id=CVE-2022-50827 Référence CVE CVE-2022-50828 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0108Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2022-50730 Référence CVE CVE-2022-50731 https://www.cve.org/CVERecord?id=CVE-2022-50731 Référence CVE CVE-2022-50732 https://www.cve.org/CVERecord?id=CVE-2022-50732 Référence CVE CVE-2022-50733 https://www.cve.org/CVERecord?id=CVE-2022-50733 Référence CVE CVE-2022-50735 https://www.cve.org/CVERecord?id=CVE-2022-50735 Référence CVE CVE-2022-50736 https://www.cve.org/CVERecord?id=CVE-2022-50736 Référence CVE CVE-2022-50738 https://www.cve.org/CVERecord?id=CVE-2022-50738 Référence CVE CVE-2022-50740 https://www.cve.org/CVERecord?id=CVE-2022-50740 Référence CVE CVE-2022-50742 https://www.cve.org/CVERecord?id=CVE-2022-50742 Référence CVE CVE-2022-50744 https://www.cve.org/CVERecord?id=CVE-2022-50744 Référence CVE CVE-2022-50745 https://www.cve.org/CVERecord?id=CVE-2022-50745 Référence CVE CVE-2022-50747 https://www.cve.org/CVERecord?id=CVE-2022-50747 Référence CVE CVE-2022-50749 https://www.cve.org/CVERecord?id=CVE-2022-50749 Référence CVE CVE-2022-50750 https://www.cve.org/CVERecord?id=CVE-2022-50750 Référence CVE CVE-2022-50751 https://www.cve.org/CVERecord?id=CVE-2022-50751 Référence CVE CVE-2022-50752 https://www.cve.org/CVERecord?id=CVE-2022-50752 Référence CVE CVE-2022-50754 https://www.cve.org/CVERecord?id=CVE-2022-50754 Référence CVE CVE-2022-50755 https://www.cve.org/CVERecord?id=

Official advisory ↗
03

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
Linux: 21d65b35169112af9b6f873c8eeab972e60107c2 < 2cf66428a2545bb33beb9624124a2377468bb478, 2c9b5b8326b953f2f48338a7c889e6af457d146f < cd542900ee5147028bbe603b238efcab8d720838, bd269188ea94e40ab002cad7b0df8f12b8f0de54 < 39761417ea7b654217d6d9085afbf7c87ba3675d, bd269188ea94e40ab002cad7b0df8f12b8f0de54 < c44e50f4a0ec00c2298f31f91bc2c3e9bbd81c7e, 147d397e08a406f5997f8a1c7f747fe546bf8395, 5.15.78 < 5.15.86, 6.0.3 < 6.0.16, 5.19.17 < 5.20, 6.1
Fixed
Linux: < 6.1, 5.15.86 ≤ 5.15.*, 6.0.16 ≤ 6.0.*, 6.1.2 ≤ 6.1.*, 6.2 ≤ *
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.
04

Evidence and provenance

Published 24 Dec 2025 · Last source change 23 May 2026, 15:25 UTC · CWE not yet assigned

CVE recordCVE.org · 5.2
CVSS sourceUnavailable
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-2022-55817
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceUnavailable
NVD statusNVD not scheduled

Missing structured fields: CVSS base score, 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.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
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.
Free version - for non-commercial use only.CVE-2022-50744 · cve.blacktree.nl