video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe()
Noroxi assessment
Priority: Monitor (action score 22/100)
- 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: 0.26% (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 0fd28daec73525382e5c992db8743bf76e42cd5c, 1791f487f877a9e83d81c8677bd3e7b259e7cb27, 64ec3e678d76419f207b9cdd338dda438ca10b1c.
Low priority for now. Upgrade to Linux Linux 0fd28daec73525382e5c992db8743bf76e42cd5c, 1791f487f877a9e83d81c8677bd3e7b259e7cb27, 64ec3e678d76419f207b9cdd338dda438ca10b1c 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: video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe() I got a null-ptr-deref report: BUG: kernel NULL pointer dereference, address: 0000000000000000 ... RIP: 0010:fb_destroy_modelist+0x38/0x100 ... Call Trace: ufx_usb_probe.cold+0x2b5/0xac1 [smscufx] usb_probe_interface+0x1aa/0x3c0 [usbcore] really_probe+0x167/0x460 ... ret_from_fork+0x1f/0x30 If fb_alloc_cmap() fails in ufx_usb_probe(), fb_destroy_modelist() will be called to destroy modelist in the error handling path. But modelist has not been initialized yet, so it will result in null-ptr-deref. Initialize modelist before calling fb_alloc_cmap() to fix this bug.
- Published
- Feb 26, 2025
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 16th percentile
- CWE
- CWE-476
Report tools
Action score
22
Monitor
Low priority for now.
- CVSS
- 22 / 40 · 5.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
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.
We use this product, ask for helpAffected 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 |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernel3.2 and later · before 4.9.311
- linux linux kernel4.10 and later · before 4.14.276
- linux linux kernel4.15 and later · before 4.19.238
- linux linux kernel4.20 and later · before 5.4.189
- linux linux kernel5.5 and later · before 5.10.110
- linux linux kernel5.11 and later · before 5.15.33
- linux linux kernel5.16 and later · before 5.16.19
- linux linux kernel5.17 and later · before 5.17.2
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
- 3.2affected
- 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 and later · before d1b6a1f0c23b7164250479bf92e2893291dca539affected · git
- 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 and later · before 0fd28daec73525382e5c992db8743bf76e42cd5caffected · git
- 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 and later · before dd3a6cc7385b89ec2303f39dfc3bafa4e24cec4baffected · git
- 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 and later · before da8b269cc0a2526ebeaccbe2484c999eb0f822cfaffected · git
- 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 and later · before 64ec3e678d76419f207b9cdd338dda438ca10b1caffected · git
- 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 and later · before c420b540db4b5d69de0a36d8b9d9a6a79a04f05aaffected · git
- 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 and later · before d396c651e2b508b6179bb678cc029f3becbf5170affected · git
- 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 and later · before 9280ef235b05e8f19f8bc6d547b992f0a0ef398daffected · git
- 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 and later · before 1791f487f877a9e83d81c8677bd3e7b259e7cb27affected · git
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 5.17.3-1 | 5.17.3-1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-64kb | before 5.3.18-150300.59.201.1 | 5.3.18-150300.59.201.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-default-base | before 5.3.18-150300.59.201.1.150300.18.120.1 | 5.3.18-150300.59.201.1.150300.18.120.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-docs | before 5.3.18-150300.59.201.1 | 5.3.18-150300.59.201.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-obs-build | before 5.3.18-150300.59.201.1 | 5.3.18-150300.59.201.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-preempt | before 5.3.18-150300.59.201.1 | 5.3.18-150300.59.201.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-source | before 5.3.18-150300.59.201.1 | 5.3.18-150300.59.201.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-syms | before 5.3.18-150300.59.201.1 | 5.3.18-150300.59.201.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kernel-default | before 4.12.14-122.255.1 | 4.12.14-122.255.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_67 | before 1-8.5.1 | 1-8.5.1 |
| SUSE:Linux Enterprise Live Patching 15 SP3 | kernel-default | before 5.3.18-150300.59.201.1 | 5.3.18-150300.59.201.1 |
| SUSE:Linux Enterprise Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_56 | before 1-150300.7.3.1 | 1-150300.7.3.1 |
| SUSE:Linux Enterprise Micro 5.1 | kernel-rt | before 5.3.18-150300.205.1 | 5.3.18-150300.205.1 |
| SUSE:Linux Enterprise Micro 5.1 | kernel-source-rt | before 5.3.18-150300.205.1 | 5.3.18-150300.205.1 |
| SUSE:Linux Enterprise Server 12 SP5-LTSS | kernel-source | before 4.12.14-122.255.1 | 4.12.14-122.255.1 |
| SUSE:Linux Enterprise Server 12 SP5-LTSS | kernel-syms | before 4.12.14-122.255.1 | 4.12.14-122.255.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-zfcpdump | before 5.3.18-150300.59.201.1 | 5.3.18-150300.59.201.1 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- 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 KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
- CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV83Now
Published before and after this one in the same product
- ← EarlierCVE-2021-47650Feb 26, 2025 · ASoC: soc-compress: prevent the potentially use of null pointer22Monitor
- ← EarlierCVE-2021-47651Feb 26, 2025 · soc: qcom: rpmpd: Check for null return of devm_kcalloc22Monitor
- Later →CVE-2021-47653Feb 26, 2025 · media: davinci: vpif: fix use-after-free on driver unbind31Monitor
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 | 0fd28daec73525382e5c992db8743bf76e42cd5c | Vendor (CNA) |
| Linux Linux | 1791f487f877a9e83d81c8677bd3e7b259e7cb27 | Vendor (CNA) |
| Linux Linux | 64ec3e678d76419f207b9cdd338dda438ca10b1c | Vendor (CNA) |
| Linux Linux | 9280ef235b05e8f19f8bc6d547b992f0a0ef398d | Vendor (CNA) |
| Linux Linux | c420b540db4b5d69de0a36d8b9d9a6a79a04f05a | Vendor (CNA) |
| Linux Linux | d1b6a1f0c23b7164250479bf92e2893291dca539 | Vendor (CNA) |
| Linux Linux | d396c651e2b508b6179bb678cc029f3becbf5170 | Vendor (CNA) |
| Linux Linux | da8b269cc0a2526ebeaccbe2484c999eb0f822cf | Vendor (CNA) |
| Linux Linux | dd3a6cc7385b89ec2303f39dfc3bafa4e24cec4b | Vendor (CNA) |
| debian:linux | 5.17.3-1 · Debian:12 | Package registry (OSV) |
| suse:kernel-64kb | 5.3.18-150300.59.201.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-default | 5.3.18-150300.59.201.1 · SUSE:Linux Enterprise Live Patching 15 SP3 | Package registry (OSV) |
| suse:kernel-default-base | 5.3.18-150300.59.201.1.150300.18.120.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-docs | 5.3.18-150300.59.201.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP3_Update_56 | 1-150300.7.3.1 · SUSE:Linux Enterprise Live Patching 15 SP3 | Package registry (OSV) |
| suse:kernel-obs-build | 5.3.18-150300.59.201.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-preempt | 5.3.18-150300.59.201.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-rt | 5.3.18-150300.205.1 · SUSE:Linux Enterprise Micro 5.1 | Package registry (OSV) |
| suse:kernel-source | 5.3.18-150300.59.201.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-source-rt | 5.3.18-150300.205.1 · SUSE:Linux Enterprise Micro 5.1 | Package registry (OSV) |
| suse:kernel-syms | 5.3.18-150300.59.201.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-zfcpdump | 5.3.18-150300.59.201.1 · 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.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
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 researchersFinders, 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.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-476 · NULL Pointer DereferenceCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvd-primary
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✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (8 more)Show less
- git.kernel.org/stable/c/1791f487f877a9e83d81c8677bd3e7b259e7cb27
- git.kernel.org/stable/c/64ec3e678d76419f207b9cdd338dda438ca10b1c
- git.kernel.org/stable/c/9280ef235b05e8f19f8bc6d547b992f0a0ef398d
- git.kernel.org/stable/c/c420b540db4b5d69de0a36d8b9d9a6a79a04f05a
- git.kernel.org/stable/c/d1b6a1f0c23b7164250479bf92e2893291dca539
- git.kernel.org/stable/c/d396c651e2b508b6179bb678cc029f3becbf5170
- git.kernel.org/stable/c/da8b269cc0a2526ebeaccbe2484c999eb0f822cf
- git.kernel.org/stable/c/dd3a6cc7385b89ec2303f39dfc3bafa4e24cec4b
Vendor advisories and official records. Exploit/PoC links are deliberately left out.