ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume()
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: 0.16% (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 07b60f7452d2fa731737552937cb81821919f874, 09780a44093b53f9cbca76246af2e4ff0884e512, 1e591ea072df7211f64542a09482b5f81cb3ad27.
Low priority for now. Upgrade to Linux Linux 07b60f7452d2fa731737552937cb81821919f874, 09780a44093b53f9cbca76246af2e4ff0884e512, 1e591ea072df7211f64542a09482b5f81cb3ad27 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: ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume() There is a memory leaks problem reported by kmemleak: unreferenced object 0xffff888102007a00 (size 128): comm "ubirsvol", pid 32090, jiffies 4298464136 (age 2361.231s) hex dump (first 32 bytes): ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ backtrace: [<ffffffff8176cecd>] __kmalloc+0x4d/0x150 [<ffffffffa02a9a36>] ubi_eba_create_table+0x76/0x170 [ubi] [<ffffffffa029764e>] ubi_resize_volume+0x1be/0xbc0 [ubi] [<ffffffffa02a3321>] ubi_cdev_ioctl+0x701/0x1850 [ubi] [<ffffffff81975d2d>] __x64_sys_ioctl+0x11d/0x170 [<ffffffff83c142a5>] do_syscall_64+0x35/0x80 [<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0 This is due to a mismatch between create and destroy interfaces, and in detail that "new_eba_tbl" created by ubi_eba_create_table() but destroyed by kfree(), while will causing "new_eba_tbl->entries" not freed. Fix it by replacing kfree(new_eba_tbl) with ubi_eba_destroy_table(new_eba_tbl)
- Published
- Sep 16, 2025
- Updated
- Jun 17, 2026
- EPSS
- 0.1% · 4th percentile
- CWE
- CWE-401
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 · 0.1%
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.
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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 |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernel4.9 and later · before 4.14.308
- linux linux kernel4.15 and later · before 4.19.276
- linux linux kernel4.20 and later · before 5.4.235
- linux linux kernel5.5 and later · before 5.10.173
- linux linux kernel5.11 and later · before 5.15.100
- linux linux kernel5.16 and later · before 6.1.18
- linux linux kernel6.2 and later · before 6.2.5
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
- 4.9affected
- 799dca34ac543485f581bd8464ec9b1c4f0f852a and later · before 09780a44093b53f9cbca76246af2e4ff0884e512affected · git
- 799dca34ac543485f581bd8464ec9b1c4f0f852a and later · before 26ec2d66aecab8ff997b912c20247fedba4f5740affected · git
- 799dca34ac543485f581bd8464ec9b1c4f0f852a and later · before 07b60f7452d2fa731737552937cb81821919f874affected · git
- 799dca34ac543485f581bd8464ec9b1c4f0f852a and later · before 31d60afe2cc2b712dbefcaab6b7d6a47036f844eaffected · git
- 799dca34ac543485f581bd8464ec9b1c4f0f852a and later · before 95a72417dd13ebcdcb1bd0c5d4d15f7c5bfbb288affected · git
- 799dca34ac543485f581bd8464ec9b1c4f0f852a and later · before 27b760b81951d8d5e5c952a696af8574052b0709affected · git
- 799dca34ac543485f581bd8464ec9b1c4f0f852a and later · before 5c0c81a313492b83bd0c038b8839b0e04eb87563affected · git
- 799dca34ac543485f581bd8464ec9b1c4f0f852a and later · before 1e591ea072df7211f64542a09482b5f81cb3ad27affected · git
- before 4.9not 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 6.1.20-1 | 6.1.20-1 |
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 | 07b60f7452d2fa731737552937cb81821919f874 | Vendor (CNA) |
| Linux Linux | 09780a44093b53f9cbca76246af2e4ff0884e512 | Vendor (CNA) |
| Linux Linux | 1e591ea072df7211f64542a09482b5f81cb3ad27 | Vendor (CNA) |
| Linux Linux | 26ec2d66aecab8ff997b912c20247fedba4f5740 | Vendor (CNA) |
| Linux Linux | 27b760b81951d8d5e5c952a696af8574052b0709 | Vendor (CNA) |
| Linux Linux | 31d60afe2cc2b712dbefcaab6b7d6a47036f844e | Vendor (CNA) |
| Linux Linux | 5c0c81a313492b83bd0c038b8839b0e04eb87563 | Vendor (CNA) |
| Linux Linux | 95a72417dd13ebcdcb1bd0c5d4d15f7c5bfbb288 | Vendor (CNA) |
| debian:linux | 6.1.20-1 · 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-401 · Missing Release of Memory after Effective LifetimeCVSS 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/09780a44093b53f9cbca76246af2e4ff0884e512
- git.kernel.org/stable/c/1e591ea072df7211f64542a09482b5f81cb3ad27
- git.kernel.org/stable/c/26ec2d66aecab8ff997b912c20247fedba4f5740
- git.kernel.org/stable/c/27b760b81951d8d5e5c952a696af8574052b0709
- git.kernel.org/stable/c/31d60afe2cc2b712dbefcaab6b7d6a47036f844e
- git.kernel.org/stable/c/5c0c81a313492b83bd0c038b8839b0e04eb87563
- git.kernel.org/stable/c/95a72417dd13ebcdcb1bd0c5d4d15f7c5bfbb288
Vendor advisories and official records. Exploit/PoC links are deliberately left out.