test_firmware: fix memory leak in test_firmware_init()
In the Linux kernel, the following vulnerability has been resolved: test_firmware: fix memory leak in test_firmware_init() When misc_register() failed in test_firmware_init(), the memory pointed by test_fw_config->name is not released. The memory leak information is as follows: unreferenced object 0xffff88810a34cb00 (size 32): comm "insmod", pid 7952, jiffies 4294948236 (age 49.060s) hex dump (first 32 bytes): 74 65 73 74 2d 66 69 72 6d 77 61 72 65 2e 62 69 test-firmware.bi 6e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 n............... backtrace: [<ffffffff81b21fcb>] __kmalloc_node_track_caller+0x4b/0xc0 [<ffffffff81affb96>] kstrndup+0x46/0xc0 [<ffffffffa0403a49>] __test_firmware_config_init+0x29/0x380 [test_firmware] [<ffffffffa040f068>] 0xffffffffa040f068 [<ffffffff81002c41>] do_one_initcall+0x141/0x780 [<ffffffff816a72c3>] do_init_module+0x1c3/0x630 [<ffffffff816adb9e>] load_module+0x623e/0x76a0 [<ffffffff816af471>] __do_sys_finit_module+0x181/0x240 [<ffffffff89978f99>] do_syscall_64+0x39/0xb0 [<ffffffff89a0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
Noroxi analysis
No Noroxi analysis for this record yet
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We use this product, ask for help- Published
- Oct 7, 2025
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 4th percentile
- CWE
- CWE-401
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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%
Affected 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 kernel4.14 and later · before 4.14.303
- linux linux kernel4.15 and later · before 4.19.270
- linux linux kernel4.20 and later · before 5.4.229
- linux linux kernel5.5 and later · before 5.10.163
- linux linux kernel5.11 and later · before 5.15.86
- linux linux kernel5.16 and later · before 6.0.16
- linux linux kernel6.1 and later · before 6.1.2
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
- 4.14affected
- c92316bf8e94830a0225f2e904cbdbd173768419 and later · before ed5cbafaf7ce8b86f19998c00eb020c8d49b017faffected · git
- c92316bf8e94830a0225f2e904cbdbd173768419 and later · before 04dd47a2e169f2d4489636afa07ff0469aab49abaffected · git
- c92316bf8e94830a0225f2e904cbdbd173768419 and later · before 628de998a3abfffb3f9677d2fb39a1d5dcb32fdbaffected · git
- c92316bf8e94830a0225f2e904cbdbd173768419 and later · before 0b5a89e8bce1ea43687742b4de8e216189ff94acaffected · git
- c92316bf8e94830a0225f2e904cbdbd173768419 and later · before 357379d504c0c8b0834e206ad8c49e4b3c98ed4daffected · git
- c92316bf8e94830a0225f2e904cbdbd173768419 and later · before 8d8c1d6a430f0aadb80036e2b1bc0a05f9fad247affected · git
- c92316bf8e94830a0225f2e904cbdbd173768419 and later · before 6dd5fbd243f19f087dc79481acb7d69fb57fea2caffected · git
- c92316bf8e94830a0225f2e904cbdbd173768419 and later · before 7610615e8cdb3f6f5bbd9d8e7a5d8a63e3cabf2eaffected · git
- before 4.14not 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 6.1.4-1 | 6.1.4-1 |
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 | 04dd47a2e169f2d4489636afa07ff0469aab49ab | Vendor (CNA) |
| Linux Linux | 0b5a89e8bce1ea43687742b4de8e216189ff94ac | Vendor (CNA) |
| Linux Linux | 357379d504c0c8b0834e206ad8c49e4b3c98ed4d | Vendor (CNA) |
| Linux Linux | 628de998a3abfffb3f9677d2fb39a1d5dcb32fdb | Vendor (CNA) |
| Linux Linux | 6dd5fbd243f19f087dc79481acb7d69fb57fea2c | Vendor (CNA) |
| Linux Linux | 7610615e8cdb3f6f5bbd9d8e7a5d8a63e3cabf2e | Vendor (CNA) |
| Linux Linux | 8d8c1d6a430f0aadb80036e2b1bc0a05f9fad247 | Vendor (CNA) |
| Linux Linux | ed5cbafaf7ce8b86f19998c00eb020c8d49b017f | Vendor (CNA) |
| debian:linux | 6.1.4-1 · 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
- git.kernel.org/stable/c/04dd47a2e169f2d4489636afa07ff0469aab49ab
- git.kernel.org/stable/c/0b5a89e8bce1ea43687742b4de8e216189ff94ac
- git.kernel.org/stable/c/357379d504c0c8b0834e206ad8c49e4b3c98ed4d
- git.kernel.org/stable/c/628de998a3abfffb3f9677d2fb39a1d5dcb32fdb
- git.kernel.org/stable/c/6dd5fbd243f19f087dc79481acb7d69fb57fea2c
- git.kernel.org/stable/c/7610615e8cdb3f6f5bbd9d8e7a5d8a63e3cabf2e
- git.kernel.org/stable/c/8d8c1d6a430f0aadb80036e2b1bc0a05f9fad247
- git.kernel.org/stable/c/ed5cbafaf7ce8b86f19998c00eb020c8d49b017f
Vendor advisories and official records. Exploit/PoC links are deliberately left out.