net: arcnet: com20020: Fix null-ptr-deref in com20020pci_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: 0.21% (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 5f394102ee27dbf051a4e283390cd8d1759dacea, 8e3bc7c5bbf87e86e9cd652ca2a9166942d86206, b1ee6b9340a38bdb9e5c90f0eac5b22b122c3049.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to Linux Linux 5f394102ee27dbf051a4e283390cd8d1759dacea, 8e3bc7c5bbf87e86e9cd652ca2a9166942d86206, b1ee6b9340a38bdb9e5c90f0eac5b22b122c3049 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
In the Linux kernel, the following vulnerability has been resolved: net: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe() During driver initialization, the pointer of card info, i.e. the variable 'ci' is required. However, the definition of 'com20020pci_id_table' reveals that this field is empty for some devices, which will cause null pointer dereference when initializing these devices. The following log reveals it: [ 3.973806] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 3.973819] RIP: 0010:com20020pci_probe+0x18d/0x13e0 [com20020_pci] [ 3.975181] Call Trace: [ 3.976208] local_pci_probe+0x13f/0x210 [ 3.977248] pci_device_probe+0x34c/0x6d0 [ 3.977255] ? pci_uevent+0x470/0x470 [ 3.978265] really_probe+0x24c/0x8d0 [ 3.978273] __driver_probe_device+0x1b3/0x280 [ 3.979288] driver_probe_device+0x50/0x370 Fix this by checking whether the 'ci' is a null pointer first.
- Published
- Aug 21, 2024
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 10th 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.
Running WordPress? Scan your site free with WP Lens
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 kernel3.18 and later · before 4.9.305
- linux linux kernel4.10 and later · before 4.14.270
- linux linux kernel4.15 and later · before 4.19.233
- linux linux kernel4.20 and later · before 5.4.183
- linux linux kernel5.5 and later · before 5.10.104
- linux linux kernel5.11 and later · before 5.15.27
- linux linux kernel5.16 and later · before 5.16.13
- linux linux kernel5.17
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
- 3.18affected
- 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f and later · before 8e3bc7c5bbf87e86e9cd652ca2a9166942d86206affected · git
- 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f and later · before b1ee6b9340a38bdb9e5c90f0eac5b22b122c3049affected · git
- 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f and later · before b838add93e1dd98210482dc433768daaf752bdefaffected · git
- 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f and later · before e50c589678e50f8d574612e473ca60ef45190896affected · git
- 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f and later · before 5f394102ee27dbf051a4e283390cd8d1759daceaaffected · git
- 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f and later · before ea372aab54903310756217d81610901a8e66cb7daffected · git
- 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f and later · before ca0bdff4249a644f2ca7a49d410d95b8dacf1f72affected · git
- 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f and later · before bd6f1fd5d33dfe5d1b4f2502d3694a7cc13f166daffected · git
- before 3.18not 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 5.16.14-1 | 5.16.14-1 |
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
- CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV77This week
- CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV77This week
- CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV77This week
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 | 5f394102ee27dbf051a4e283390cd8d1759dacea | Vendor (CNA) |
| Linux Linux | 8e3bc7c5bbf87e86e9cd652ca2a9166942d86206 | Vendor (CNA) |
| Linux Linux | b1ee6b9340a38bdb9e5c90f0eac5b22b122c3049 | Vendor (CNA) |
| Linux Linux | b838add93e1dd98210482dc433768daaf752bdef | Vendor (CNA) |
| Linux Linux | bd6f1fd5d33dfe5d1b4f2502d3694a7cc13f166d | Vendor (CNA) |
| Linux Linux | ca0bdff4249a644f2ca7a49d410d95b8dacf1f72 | Vendor (CNA) |
| Linux Linux | e50c589678e50f8d574612e473ca60ef45190896 | Vendor (CNA) |
| Linux Linux | ea372aab54903310756217d81610901a8e66cb7d | Vendor (CNA) |
| debian:linux | 5.16.14-1 · 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.
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).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-24-1311 · Aug 22, 2024(Linux Kernel Güvenlik Bildirimi)
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 (7 more)Show less
- git.kernel.org/stable/c/8e3bc7c5bbf87e86e9cd652ca2a9166942d86206
- git.kernel.org/stable/c/b1ee6b9340a38bdb9e5c90f0eac5b22b122c3049
- git.kernel.org/stable/c/b838add93e1dd98210482dc433768daaf752bdef
- git.kernel.org/stable/c/bd6f1fd5d33dfe5d1b4f2502d3694a7cc13f166d
- git.kernel.org/stable/c/ca0bdff4249a644f2ca7a49d410d95b8dacf1f72
- git.kernel.org/stable/c/e50c589678e50f8d574612e473ca60ef45190896
- git.kernel.org/stable/c/ea372aab54903310756217d81610901a8e66cb7d
Vendor advisories and official records. Exploit/PoC links are deliberately left out.