NVD / CVE Program· CNA Linux

CVE-2024-50269: usb: musb: sunxi: Fix accessing an released usb phy

HighCVSS 7.8 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 31/100)

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: 0.27% (FIRST EPSS).
Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
Fixed version: Linux Linux 4.10, 4.14, 4.5; cbl2 kernel 5.15.167.1-2 on CBL Mariner 2.0 5.15.173.1-1; cbl2 kernel 5.15.167.1-2 on CBL-Mariner 2.0 5.15.173.1-1.

Low priority for now. Upgrade to Linux Linux 4.10, 4.14, 4.5; cbl2 kernel 5.15.167.1-2 on CBL Mariner 2.0 5.15.173.1-1; cbl2 kernel 5.15.167.1-2 on CBL-Mariner 2.0 5.15.173.1-1 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: usb: musb: sunxi: Fix accessing an released usb phy Commit 6ed05c68cbca ("usb: musb: sunxi: Explicitly release USB PHY on exit") will cause that usb phy @glue->xceiv is accessed after released. 1) register platform driver @sunxi_musb_driver // get the usb phy @glue->xceiv sunxi_musb_probe() -> devm_usb_get_phy(). 2) register and unregister platform driver @musb_driver musb_probe() -> sunxi_musb_init() use the phy here //the phy is released here musb_remove() -> sunxi_musb_exit() -> devm_usb_put_phy() 3) register @musb_driver again musb_probe() -> sunxi_musb_init() use the phy here but the phy has been released at 2). ... Fixed by reverting the commit, namely, removing devm_usb_put_phy() from sunxi_musb_exit().

Memory safety

BDU:2025-06978

Published: Nov 18, 2024
Updated: Jun 17, 2026
EPSS: 0.2% · 19th percentile
CWE: CWE-416

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 31 / 40 · 7.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.2%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

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

If any of these changes, we'll tell you in the daily email digest.

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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.

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

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
- 583a4219841d00e96b5de55be160aa7eb7721a4d, b4ecc15d6f5a13c0bbe2777438e87e321f83faaa, a2259ebaa933331c53904caf792b619ec42f0da5, 4.14affected
- 6ed05c68cbcae42cd52b8e53b66952bfa9c002ce and later · before 721ddad945596220c123eb6f7126729fe277ee4faffected · git
- 6ed05c68cbcae42cd52b8e53b66952bfa9c002ce and later · before 4aa77d5ea9944468e16c3eed15e858fd5de44de1affected · git
- 6ed05c68cbcae42cd52b8e53b66952bfa9c002ce and later · before 6e2848d1c8c0139161e69ac0a94133e90e9988e8affected · git
- 6ed05c68cbcae42cd52b8e53b66952bfa9c002ce and later · before 63559ba8077cbadae1c92a65b73ea522bf377dd9affected · git
- 6ed05c68cbcae42cd52b8e53b66952bfa9c002ce and later · before ccd811c304d2ee56189bfbc49302cb3c44361893affected · git
- 6ed05c68cbcae42cd52b8e53b66952bfa9c002ce and later · before 8a30da5aa9609663b3e05bcc91a916537f66a4cdaffected · git
- 6ed05c68cbcae42cd52b8e53b66952bfa9c002ce and later · before b08baa75b989cf779cbfa0969681f8ba2dc46569affected · git
- 6ed05c68cbcae42cd52b8e53b66952bfa9c002ce and later · before 498dbd9aea205db9da674994b74c7bf8e18448bdaffected · git
- 4.4.95 and later · before 4.5affected · semver

Affected versions · NVD (11)

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

linux linux kernel4.4.95 and later · before 4.5
linux linux kernel4.9.59 and later · before 4.10
linux linux kernel4.13.10 and later · before 4.14
linux linux kernel4.14 and later · before 4.19.324
linux linux kernel4.20 and later · before 5.4.286
linux linux kernel5.5 and later · before 5.10.230
linux linux kernel5.11 and later · before 5.15.172
linux linux kernel5.16 and later · before 6.1.117
linux linux kernel6.2 and later · before 6.6.61
linux linux kernel6.7 and later · before 6.11.8
linux linux kernel6.12

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 6.1.119-1	6.1.119-1
Debian:13	linux	before 6.11.9-1	6.11.9-1

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
90Now
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-2024-50267Nov 18, 2024 · USB: serial: io_edgeport: fix use after free in debug printk
31Monitor
← EarlierCVE-2024-50268Nov 18, 2024 · usb: typec: fix potential out of bounds in ucsi_ccg_update_set_new_cam_cmd()
28Monitor
Later →CVE-2024-50270Nov 18, 2024 · mm/damon/core: avoid overflow in damon_feed_loop_next_input()
22Monitor

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	4.10	Vendor (CNA)
Linux Linux	4.14	Vendor (CNA)
Linux Linux	4.5	Vendor (CNA)
Linux Linux	498dbd9aea205db9da674994b74c7bf8e18448bd	Vendor (CNA)
Linux Linux	4aa77d5ea9944468e16c3eed15e858fd5de44de1	Vendor (CNA)
Linux Linux	63559ba8077cbadae1c92a65b73ea522bf377dd9	Vendor (CNA)
Linux Linux	6e2848d1c8c0139161e69ac0a94133e90e9988e8	Vendor (CNA)
Linux Linux	721ddad945596220c123eb6f7126729fe277ee4f	Vendor (CNA)
Linux Linux	8a30da5aa9609663b3e05bcc91a916537f66a4cd	Vendor (CNA)
Linux Linux	b08baa75b989cf779cbfa0969681f8ba2dc46569	Vendor (CNA)
Linux Linux	ccd811c304d2ee56189bfbc49302cb3c44361893	Vendor (CNA)
cbl2 kernel 5.15.167.1-2 on CBL Mariner 2.0	5.15.173.1-1 · CBL-Mariner Releases	Microsoft (MSRC)
cbl2 kernel 5.15.167.1-2 on CBL-Mariner 2.0	5.15.173.1-1 · CBL-Mariner Releases	Microsoft (MSRC)
cbl2 kernel 5.15.173.1-1 on CBL Mariner 2.0	5.15.173.1-1 · CBL-Mariner Releases	Microsoft (MSRC)
debian:linux	6.1.119-1 · Debian:12	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.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

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.
No special conditions are required; it is repeatable.

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: Low
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:L/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 (1)

Fix✗ → ✓Sep 28, 2026, 10:10 PM UTC

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

References

git.kernel.org/stable/c/498dbd9aea205db9da674994b74c7bf8e18448bd

Show all references (9 more)

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

All records