tty: serial: Fix refcount leak bug in ucc_uart.c
In the Linux kernel, the following vulnerability has been resolved: tty: serial: Fix refcount leak bug in ucc_uart.c In soc_info(), of_find_node_by_type() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore.
- Published
- Jun 18, 2025
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 8th percentile
- CWE
- —
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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%
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 kernel2.6.25 and later · before 4.9.326
- linux linux kernel4.10 and later · before 4.14.291
- linux linux kernel4.15 and later · before 4.19.256
- linux linux kernel4.20 and later · before 5.4.211
- linux linux kernel5.5 and later · before 5.10.138
- linux linux kernel5.11 and later · before 5.15.63
- linux linux kernel5.16 and later · before 5.19.4
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
- 2.6.25affected
- d7584ed2b994a572326650b0c4d2c25961e6f49d and later · before 8245e7d1d7f75a9255ad1e8146752e5051d528b8affected · git
- d7584ed2b994a572326650b0c4d2c25961e6f49d and later · before ec56f886f3bf0f15f7a3844d4c025e165b8e8de7affected · git
- d7584ed2b994a572326650b0c4d2c25961e6f49d and later · before 59bc4c19d53bdac61ec952c01c6e864f5f0f8367affected · git
- d7584ed2b994a572326650b0c4d2c25961e6f49d and later · before ca3fc1c38e4253bc019881301a28ea60b8b0bca3affected · git
- d7584ed2b994a572326650b0c4d2c25961e6f49d and later · before 81939c4fbc2d5c754d0f1c1f05149d4b70d751edaffected · git
- d7584ed2b994a572326650b0c4d2c25961e6f49d and later · before 17c32546166d8a7d2579c4b57c8b16241f94a66baffected · git
- d7584ed2b994a572326650b0c4d2c25961e6f49d and later · before f6ed634eedb1a8a6a8cb110a7695c7abb70ffcbfaffected · git
- d7584ed2b994a572326650b0c4d2c25961e6f49d and later · before d24d7bb2cd947676f9b71fb944d045e09b8b282faffected · git
- before 2.6.25not 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 6.0.2-1 | 6.0.2-1 |
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 | 17c32546166d8a7d2579c4b57c8b16241f94a66b | Vendor (CNA) |
| Linux Linux | 59bc4c19d53bdac61ec952c01c6e864f5f0f8367 | Vendor (CNA) |
| Linux Linux | 81939c4fbc2d5c754d0f1c1f05149d4b70d751ed | Vendor (CNA) |
| Linux Linux | 8245e7d1d7f75a9255ad1e8146752e5051d528b8 | Vendor (CNA) |
| Linux Linux | ca3fc1c38e4253bc019881301a28ea60b8b0bca3 | Vendor (CNA) |
| Linux Linux | d24d7bb2cd947676f9b71fb944d045e09b8b282f | Vendor (CNA) |
| Linux Linux | ec56f886f3bf0f15f7a3844d4c025e165b8e8de7 | Vendor (CNA) |
| Linux Linux | f6ed634eedb1a8a6a8cb110a7695c7abb70ffcbf | Vendor (CNA) |
| debian:linux | 6.0.2-1 · 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)
—
CVSS 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/17c32546166d8a7d2579c4b57c8b16241f94a66b
- git.kernel.org/stable/c/59bc4c19d53bdac61ec952c01c6e864f5f0f8367
- git.kernel.org/stable/c/81939c4fbc2d5c754d0f1c1f05149d4b70d751ed
- git.kernel.org/stable/c/8245e7d1d7f75a9255ad1e8146752e5051d528b8
- git.kernel.org/stable/c/ca3fc1c38e4253bc019881301a28ea60b8b0bca3
- git.kernel.org/stable/c/d24d7bb2cd947676f9b71fb944d045e09b8b282f
- git.kernel.org/stable/c/ec56f886f3bf0f15f7a3844d4c025e165b8e8de7
- git.kernel.org/stable/c/f6ed634eedb1a8a6a8cb110a7695c7abb70ffcbf
Vendor advisories and official records. Exploit/PoC links are deliberately left out.