NVD / CVE Program· CNA Linux

CVE-2022-48790: nvme: fix a possible use-after-free in controller reset during load

Noroxi assessment

Priority: Monitor (action score 28/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.79% (FIRST EPSS); higher than 56.3% of all records.
Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
Fixed version: Linux Linux 0ead57ceb21bbf15963b4874c2ac67143455382f, 0fa0f99fc84e41057cbdd2efbfe91c6b2f47dd9d, 70356b756a58704e5c8818cb09da5854af87e765.
Severity is disputed: the assigning authority (CNA) scores it 9.8, NVD 7.0.

Low priority for now. Upgrade to Linux Linux 0ead57ceb21bbf15963b4874c2ac67143455382f, 0fa0f99fc84e41057cbdd2efbfe91c6b2f47dd9d, 70356b756a58704e5c8818cb09da5854af87e765 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: nvme: fix a possible use-after-free in controller reset during load Unlike .queue_rq, in .submit_async_event drivers may not check the ctrl readiness for AER submission. This may lead to a use-after-free condition that was observed with nvme-tcp. The race condition may happen in the following scenario: 1. driver executes its reset_ctrl_work 2. -> nvme_stop_ctrl - flushes ctrl async_event_work 3. ctrl sends AEN which is received by the host, which in turn schedules AEN handling 4. teardown admin queue (which releases the queue socket) 5. AEN processed, submits another AER, calling the driver to submit 6. driver attempts to send the cmd ==> use-after-free In order to fix that, add ctrl state check to validate the ctrl is actually able to accept the AER submission. This addresses the above race in controller resets because the driver during teardown should: 1. change ctrl state to RESETTING 2. flush async_event_work (as well as other async work elements) So after 1,2, any other AER command will find the ctrl state to be RESETTING and bail out without submitting the AER.

HighCVSS 7.0 · v3.1—No exploit Fix available

Published: Jul 16, 2024
Updated: Aug 5, 2026
EPSS: 0.7% · 56th percentile
CWE: CWE-416

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 28 / 40 · 7.0 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.7%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 7.0
CNA · Linux: 9.8; 2.8 point gap

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

ProductVersion

Vendor	Product	CPE
linux	linux kernel	cpe:2.3:o:linux:linux_kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

linux linux kernelbefore 4.19.231
linux linux kernel4.20 and later · before 5.4.181
linux linux kernel5.5 and later · before 5.10.102
linux linux kernel5.11 and later · before 5.15.25
linux linux kernel5.16 and later · before 5.16.11

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

Linux Linux
- 4.15affected
- ad22c355b707a8d8d48e282aadc01c0b0604b2e9 and later · before a25e460fbb0340488d119fb2e28fe3f829b7417eaffected · git
- ad22c355b707a8d8d48e282aadc01c0b0604b2e9 and later · before 70356b756a58704e5c8818cb09da5854af87e765affected · git
- ad22c355b707a8d8d48e282aadc01c0b0604b2e9 and later · before 0ead57ceb21bbf15963b4874c2ac67143455382faffected · git
- ad22c355b707a8d8d48e282aadc01c0b0604b2e9 and later · before e043fb5a0336ee74614e26f0d9f36f1f5bb6d606affected · git
- ad22c355b707a8d8d48e282aadc01c0b0604b2e9 and later · before 9e956a2596ae276124ef0d96829c013dd0faf861affected · git
- ad22c355b707a8d8d48e282aadc01c0b0604b2e9 and later · before 0fa0f99fc84e41057cbdd2efbfe91c6b2f47dd9daffected · git
- before 4.15not affected · semver
- 4.19.231 and later · up to and including 4.19.*not affected · semver
- 5.4.181 and later · up to and including 5.4.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Debian:12	linux	before 5.16.11-1	5.16.11-1
SUSE:Linux Enterprise High Availability Extension 12 SP5	kernel-default	before 4.12.14-122.231.1	4.12.14-122.231.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	kernel-64kb	before 5.3.18-150300.59.174.1	5.3.18-150300.59.174.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	kernel-default-base	before 5.3.18-150300.59.174.1.150300.18.103.1	5.3.18-150300.59.174.1.150300.18.103.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	kernel-docs	before 5.3.18-150300.59.174.1	5.3.18-150300.59.174.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	kernel-obs-build	before 5.3.18-150300.59.174.1	5.3.18-150300.59.174.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	kernel-preempt	before 5.3.18-150300.59.174.1	5.3.18-150300.59.174.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	kernel-source	before 5.3.18-150300.59.174.1	5.3.18-150300.59.174.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	kernel-syms	before 5.3.18-150300.59.174.1	5.3.18-150300.59.174.1
SUSE:Linux Enterprise Live Patching 12 SP5	kernel-default	before 4.12.14-122.234.1	4.12.14-122.234.1
SUSE:Linux Enterprise Live Patching 12 SP5	kgraft-patch-SLE12-SP5_Update_61	before 1-8.3.1	1-8.3.1
SUSE:Linux Enterprise Live Patching 12 SP5	kgraft-patch-SLE12-SP5_Update_62	before 1-8.3.1	1-8.3.1
SUSE:Linux Enterprise Live Patching 15 SP3	kernel-default	before 5.3.18-150300.59.174.1	5.3.18-150300.59.174.1
SUSE:Linux Enterprise Live Patching 15 SP3	kernel-livepatch-SLE15-SP3_Update_48	before 1-150300.7.3.1	1-150300.7.3.1
SUSE:Linux Enterprise Micro 5.1	kernel-rt	before 5.3.18-150300.181.2	5.3.18-150300.181.2
SUSE:Linux Enterprise Micro 5.1	kernel-source-rt	before 5.3.18-150300.181.2	5.3.18-150300.181.2
SUSE:Linux Enterprise Real Time 12 SP5	kernel-rt	before 4.12.14-10.203.1	4.12.14-10.203.1
SUSE:Linux Enterprise Real Time 12 SP5	kernel-rt_debug	before 4.12.14-10.203.1	4.12.14-10.203.1
SUSE:Linux Enterprise Real Time 12 SP5	kernel-source-rt	before 4.12.14-10.203.1	4.12.14-10.203.1
SUSE:Linux Enterprise Real Time 12 SP5	kernel-syms-rt	before 4.12.14-10.203.1	4.12.14-10.203.1
SUSE:Linux Enterprise Server 12 SP5	kernel-azure	before 4.12.14-16.200.1	4.12.14-16.200.1
SUSE:Linux Enterprise Server 12 SP5	kernel-source	before 4.12.14-122.231.1	4.12.14-122.231.1
SUSE:Linux Enterprise Server 12 SP5	kernel-source-azure	before 4.12.14-16.200.1	4.12.14-16.200.1
SUSE:Linux Enterprise Server 12 SP5	kernel-syms	before 4.12.14-122.231.1	4.12.14-122.231.1

Same product

linux: all records

Other highest-scoring records for the same primary product.

CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
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CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
89Now
CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
85Now

Published before and after this one in the same product

← EarlierCVE-2022-48788Jul 16, 2024 · nvme-rdma: fix possible use-after-free in transport error_recovery work
31Monitor
← EarlierCVE-2022-48789Jul 16, 2024 · nvme-tcp: fix possible use-after-free in transport error_recovery work
31Monitor
Later →CVE-2022-48791Jul 16, 2024 · scsi: pm8001: Fix use-after-free for aborted TMF sas_task
31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Linux Linux	0ead57ceb21bbf15963b4874c2ac67143455382f	Vendor (CNA)
Linux Linux	0fa0f99fc84e41057cbdd2efbfe91c6b2f47dd9d	Vendor (CNA)
Linux Linux	70356b756a58704e5c8818cb09da5854af87e765	Vendor (CNA)
Linux Linux	9e956a2596ae276124ef0d96829c013dd0faf861	Vendor (CNA)
Linux Linux	a25e460fbb0340488d119fb2e28fe3f829b7417e	Vendor (CNA)
Linux Linux	e043fb5a0336ee74614e26f0d9f36f1f5bb6d606	Vendor (CNA)
debian:linux	5.16.11-1 · Debian:12	Package registry (OSV)
suse:kernel-64kb	5.3.18-150300.59.174.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	Package registry (OSV)
suse:kernel-default	5.3.18-150300.59.174.1 · SUSE:Linux Enterprise Live Patching 15 SP3	Package registry (OSV)
suse:kernel-default-base	5.3.18-150300.59.174.1.150300.18.103.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	Package registry (OSV)
suse:kernel-docs	5.3.18-150300.59.174.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	Package registry (OSV)
suse:kernel-livepatch-SLE15-SP3_Update_48	1-150300.7.3.1 · SUSE:Linux Enterprise Live Patching 15 SP3	Package registry (OSV)
suse:kernel-obs-build	5.3.18-150300.59.174.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	Package registry (OSV)
suse:kernel-preempt	5.3.18-150300.59.174.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	Package registry (OSV)
suse:kernel-rt	5.3.18-150300.181.2 · SUSE:Linux Enterprise Micro 5.1	Package registry (OSV)
suse:kernel-source	5.3.18-150300.59.174.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	Package registry (OSV)
suse:kernel-source-rt	5.3.18-150300.181.2 · SUSE:Linux Enterprise Micro 5.1	Package registry (OSV)
suse:kernel-syms	5.3.18-150300.59.174.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	Package registry (OSV)
suse:kernel-zfcpdump	5.3.18-150300.59.174.1 · SUSE:Linux Enterprise Server 15 SP3-LTSS	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Someone with local access to the system can trigger it.
A low-privileged account is enough.
No user action is required.
Special conditions such as timing or configuration are required.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Local
Attack complexity: High
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-416 · Use After Free

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

The bug in code

The whole CWE-416 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1free(dev->buf);
2/* ... another thread is still running ... */
3process(dev->buf);

Fixed

1lock(&dev->lock);
2free(dev->buf);
3dev->buf = NULL;
4unlock(&dev->lock);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

Fix✗ → ✓Sep 28, 2026, 10:09 PM UTC

For records you follow, these changes also arrive as notifications. →

References

git.kernel.org/stable/c/0ead57ceb21bbf15963b4874c2ac67143455382f

Show all references (5 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records