lockd: set other missing fields when unlocking files
In the Linux kernel, the following vulnerability has been resolved: lockd: set other missing fields when unlocking files vfs_lock_file() expects the struct file_lock to be fully initialised by the caller. Re-exported NFSv3 has been seen to Oops if the fl_file field is NULL.
- Published
- Sep 15, 2025
- Updated
- Aug 5, 2026
- EPSS
- 0.4% · 28th 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 · 0.4%
CNA vs NVD score
- NVD
- 5.5
- CNA · Linux
- 7.5
- 2.0 point gap
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
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 kernel5.15.56 and later · before 5.15.86
- linux linux kernel5.18.13 and later · before 5.19
- linux linux kernel5.19.1 and later · before 6.0.16
- linux linux kernel6.1 and later · before 6.1.2
- linux linux kernel5.19
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
- 58c3f48a540b821b3253e2dc31c8fa237293ffc9, 5.19affected
- 486c1acf14233b1ff7b37e6f026a737a2f7f53f1 and later · before 31c93ee5f1e4dc278b562e20f3c3274ac34997f3affected · git
- 9c3eef773cf4a8a18f959234bbb4c0a55c31ab71 and later · before 95d42a8d3d4ae84a0bd3ee23e1fee240cdf0a9f0affected · git
- aec158242b87a43d83322e99bc71ab4428e5ab79 and later · before 688575aef211b0986fc51010116f5888a99d76a2affected · git
- aec158242b87a43d83322e99bc71ab4428e5ab79 and later · before d7aa9f7778316beb690f6e2763b6d672ad8b256faffected · git
- aec158242b87a43d83322e99bc71ab4428e5ab79 and later · before 18ebd35b61b4693a0ddc270b6d4f18def232e770affected · git
- 5.15.56 and later · before 5.15.86affected · semver
- 5.18.13 and later · before 5.19affected · semver
- before 5.19not affected · semver
- 5.15.86 and later · up to and including 5.15.*not affected · semver
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 | 18ebd35b61b4693a0ddc270b6d4f18def232e770 | Vendor (CNA) |
| Linux Linux | 31c93ee5f1e4dc278b562e20f3c3274ac34997f3 | Vendor (CNA) |
| Linux Linux | 5.15.86 | Vendor (CNA) |
| Linux Linux | 5.19 | Vendor (CNA) |
| Linux Linux | 688575aef211b0986fc51010116f5888a99d76a2 | Vendor (CNA) |
| Linux Linux | 95d42a8d3d4ae84a0bd3ee23e1fee240cdf0a9f0 | Vendor (CNA) |
| Linux Linux | d7aa9f7778316beb690f6e2763b6d672ad8b256f | Vendor (CNA) |
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/18ebd35b61b4693a0ddc270b6d4f18def232e770
- git.kernel.org/stable/c/31c93ee5f1e4dc278b562e20f3c3274ac34997f3
- git.kernel.org/stable/c/688575aef211b0986fc51010116f5888a99d76a2
- git.kernel.org/stable/c/95d42a8d3d4ae84a0bd3ee23e1fee240cdf0a9f0
- git.kernel.org/stable/c/d7aa9f7778316beb690f6e2763b6d672ad8b256f
Vendor advisories and official records. Exploit/PoC links are deliberately left out.