usb: typec: ucsi: Fix null pointer dereference in trace
In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: Fix null pointer dereference in trace ucsi_register_altmode checks IS_ERR for the alt pointer and treats NULL as valid. When CONFIG_TYPEC_DP_ALTMODE is not enabled, ucsi_register_displayport returns NULL which causes a NULL pointer dereference in trace. Rather than return NULL, call typec_port_register_altmode to register DisplayPort alternate mode as a non-controllable mode when CONFIG_TYPEC_DP_ALTMODE is not enabled.
- Published
- Sep 18, 2024
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 13th percentile
- CWE
- CWE-476
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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.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| 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 5.4.284
- linux linux kernel5.5 and later · before 5.10.226
- linux linux kernel5.11 and later · before 5.15.167
- linux linux kernel5.16 and later · before 6.1.109
- linux linux kernel6.2 and later · before 6.6.50
- linux linux kernel6.7 and later · before 6.10.9
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
- 5.2affected
- af8622f6a585d8d82b11cd7987e082861fd0edd3 and later · before 8095bf0579ed4906a33f7bec675bfb29b6b16a3baffected · git
- af8622f6a585d8d82b11cd7987e082861fd0edd3 and later · before 7e64cabe81c303bdf6fd26b6a09a3289b33bc870affected · git
- af8622f6a585d8d82b11cd7987e082861fd0edd3 and later · before 3aa56313b0de06ce1911950b2cc0c269614a87a9affected · git
- af8622f6a585d8d82b11cd7987e082861fd0edd3 and later · before b4243c05d7e3db0bdbf9124e6fa59b4ca7c807aeaffected · git
- af8622f6a585d8d82b11cd7987e082861fd0edd3 and later · before 3b9f2d9301ae67070fe77a0c06758722fd7172b7affected · git
- af8622f6a585d8d82b11cd7987e082861fd0edd3 and later · before 99331fe68a8eaa4097143a33fb0c12d5e5e8e830affected · git
- af8622f6a585d8d82b11cd7987e082861fd0edd3 and later · before 99516f76db48e1a9d54cdfed63c1babcee4e71a5affected · git
- before 5.2not affected · semver
- 5.4.284 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 6.1.112-1 | 6.1.112-1 |
| Debian:13 | linux | before 6.10.9-1 | 6.10.9-1 |
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 | 3aa56313b0de06ce1911950b2cc0c269614a87a9 | Vendor (CNA) |
| Linux Linux | 3b9f2d9301ae67070fe77a0c06758722fd7172b7 | Vendor (CNA) |
| Linux Linux | 7e64cabe81c303bdf6fd26b6a09a3289b33bc870 | Vendor (CNA) |
| Linux Linux | 8095bf0579ed4906a33f7bec675bfb29b6b16a3b | Vendor (CNA) |
| Linux Linux | 99331fe68a8eaa4097143a33fb0c12d5e5e8e830 | Vendor (CNA) |
| Linux Linux | 99516f76db48e1a9d54cdfed63c1babcee4e71a5 | Vendor (CNA) |
| Linux Linux | b4243c05d7e3db0bdbf9124e6fa59b4ca7c807ae | Vendor (CNA) |
| debian:linux | 6.1.112-1 · 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).
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
- git.kernel.org/stable/c/3b9f2d9301ae67070fe77a0c06758722fd7172b7
- git.kernel.org/stable/c/3aa56313b0de06ce1911950b2cc0c269614a87a9
- git.kernel.org/stable/c/7e64cabe81c303bdf6fd26b6a09a3289b33bc870
- git.kernel.org/stable/c/8095bf0579ed4906a33f7bec675bfb29b6b16a3b
- git.kernel.org/stable/c/99331fe68a8eaa4097143a33fb0c12d5e5e8e830
- git.kernel.org/stable/c/99516f76db48e1a9d54cdfed63c1babcee4e71a5
- git.kernel.org/stable/c/b4243c05d7e3db0bdbf9124e6fa59b4ca7c807ae
- lists.debian.org/debian-lts-announce/2024/10/msg00003.html
- lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.