dmaengine: ti: k3-udma: Add missing locking
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 0ea0433f822ed0549715f7044c9cd1cf132ff7fa, 26e63b2fe30c61bd25981c6084f67a8af79945d0, 27e71fa08711e09d81e06a54007b362a5426fd22.
- Severity is disputed: the assigning authority (CNA) scores it 7.8, NVD 5.5.
Low priority for now. Upgrade to Linux Linux 0ea0433f822ed0549715f7044c9cd1cf132ff7fa, 26e63b2fe30c61bd25981c6084f67a8af79945d0, 27e71fa08711e09d81e06a54007b362a5426fd22 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: dmaengine: ti: k3-udma: Add missing locking Recent kernels complain about a missing lock in k3-udma.c when the lock validator is enabled: [ 4.128073] WARNING: CPU: 0 PID: 746 at drivers/dma/ti/../virt-dma.h:169 udma_start.isra.0+0x34/0x238 [ 4.137352] CPU: 0 UID: 0 PID: 746 Comm: kworker/0:3 Not tainted 6.12.9-arm64 #28 [ 4.144867] Hardware name: pp-v12 (DT) [ 4.148648] Workqueue: events udma_check_tx_completion [ 4.153841] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 4.160834] pc : udma_start.isra.0+0x34/0x238 [ 4.165227] lr : udma_start.isra.0+0x30/0x238 [ 4.169618] sp : ffffffc083cabcf0 [ 4.172963] x29: ffffffc083cabcf0 x28: 0000000000000000 x27: ffffff800001b005 [ 4.180167] x26: ffffffc0812f0000 x25: 0000000000000000 x24: 0000000000000000 [ 4.187370] x23: 0000000000000001 x22: 00000000e21eabe9 x21: ffffff8000fa0670 [ 4.194571] x20: ffffff8001b6bf00 x19: ffffff8000fa0430 x18: ffffffc083b95030 [ 4.201773] x17: 0000000000000000 x16: 00000000f0000000 x15: 0000000000000048 [ 4.208976] x14: 0000000000000048 x13: 0000000000000000 x12: 0000000000000001 [ 4.216179] x11: ffffffc08151a240 x10: 0000000000003ea1 x9 : ffffffc08046ab68 [ 4.223381] x8 : ffffffc083cabac0 x7 : ffffffc081df3718 x6 : 0000000000029fc8 [ 4.230583] x5 : ffffffc0817ee6d8 x4 : 0000000000000bc0 x3 : 0000000000000000 [ 4.237784] x2 : 0000000000000000 x1 : 00000000001fffff x0 : 0000000000000000 [ 4.244986] Call trace: [ 4.247463] udma_start.isra.0+0x34/0x238 [ 4.251509] udma_check_tx_completion+0xd0/0xdc [ 4.256076] process_one_work+0x244/0x3fc [ 4.260129] process_scheduled_works+0x6c/0x74 [ 4.264610] worker_thread+0x150/0x1dc [ 4.268398] kthread+0xd8/0xe8 [ 4.271492] ret_from_fork+0x10/0x20 [ 4.275107] irq event stamp: 220 [ 4.278363] hardirqs last enabled at (219): [<ffffffc080a27c7c>] _raw_spin_unlock_irq+0x38/0x50 [ 4.287183] hardirqs last disabled at (220): [<ffffffc080a1c154>] el1_dbg+0x24/0x50 [ 4.294879] softirqs last enabled at (182): [<ffffffc080037e68>] handle_softirqs+0x1c0/0x3cc [ 4.303437] softirqs last disabled at (177): [<ffffffc080010170>] __do_softirq+0x1c/0x28 [ 4.311559] ---[ end trace 0000000000000000 ]--- This commit adds the missing locking.
- Published
- Jun 18, 2025
- Updated
- Aug 5, 2026
- EPSS
- 0.2% · 10th percentile
- CWE
- —
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%
CNA vs NVD score
- NVD
- 5.5
- CNA · Linux
- 7.8
- 2.3 point gap
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
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 |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- debian debian linux11.0
- linux linux kernel5.11 and later · before 5.15.184
- linux linux kernel5.16 and later · before 6.1.140
- linux linux kernel6.2 and later · before 6.6.92
- linux linux kernel5.6 and later · before 5.10.238
- linux linux kernel6.13 and later · before 6.14.8
- linux linux kernel6.7 and later · before 6.12.30
- linux linux kernel6.15
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
- 5.6affected
- 25dcb5dd7b7ce5587c1df18f584ff78f51a68a94 and later · before 27e71fa08711e09d81e06a54007b362a5426fd22affected · git
- 25dcb5dd7b7ce5587c1df18f584ff78f51a68a94 and later · before 0ea0433f822ed0549715f7044c9cd1cf132ff7faaffected · git
- 25dcb5dd7b7ce5587c1df18f584ff78f51a68a94 and later · before df5987e76a4ae4cbd705d81ab4b15ed232250a4aaffected · git
- 25dcb5dd7b7ce5587c1df18f584ff78f51a68a94 and later · before d87f1cddc592387359fde157cc4296556f6403c2affected · git
- 25dcb5dd7b7ce5587c1df18f584ff78f51a68a94 and later · before 26e63b2fe30c61bd25981c6084f67a8af79945d0affected · git
- 25dcb5dd7b7ce5587c1df18f584ff78f51a68a94 and later · before 99df1edf17493cb49a8c01f6bde55c3abb6a2a6caffected · git
- 25dcb5dd7b7ce5587c1df18f584ff78f51a68a94 and later · before fca280992af8c2fbd511bc43f65abb4a17363f2faffected · git
- before 5.6not affected · semver
- 5.10.238 and later · up to and including 5.10.*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 6.1.140-1 | 6.1.140-1 |
| Debian:13 | linux | before 6.12.30-1 | 6.12.30-1 |
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 | 0ea0433f822ed0549715f7044c9cd1cf132ff7fa | Vendor (CNA) |
| Linux Linux | 26e63b2fe30c61bd25981c6084f67a8af79945d0 | Vendor (CNA) |
| Linux Linux | 27e71fa08711e09d81e06a54007b362a5426fd22 | Vendor (CNA) |
| Linux Linux | 99df1edf17493cb49a8c01f6bde55c3abb6a2a6c | Vendor (CNA) |
| Linux Linux | d87f1cddc592387359fde157cc4296556f6403c2 | Vendor (CNA) |
| Linux Linux | df5987e76a4ae4cbd705d81ab4b15ed232250a4a | Vendor (CNA) |
| Linux Linux | fca280992af8c2fbd511bc43f65abb4a17363f2f | Vendor (CNA) |
| debian:linux | 6.1.140-1 · 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
Show all references (8 more)Show less
- git.kernel.org/stable/c/26e63b2fe30c61bd25981c6084f67a8af79945d0
- git.kernel.org/stable/c/27e71fa08711e09d81e06a54007b362a5426fd22
- git.kernel.org/stable/c/99df1edf17493cb49a8c01f6bde55c3abb6a2a6c
- git.kernel.org/stable/c/d87f1cddc592387359fde157cc4296556f6403c2
- git.kernel.org/stable/c/df5987e76a4ae4cbd705d81ab4b15ed232250a4a
- git.kernel.org/stable/c/fca280992af8c2fbd511bc43f65abb4a17363f2f
- lists.debian.org/debian-lts-announce/2025/08/msg00010.html
- lists.debian.org/debian-lts-announce/2025/10/msg00007.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.