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NVD / CVE Program· CNA Linux

CVE-2022-50529: test_firmware: fix memory leak in test_firmware_init()

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 04dd47a2e169f2d4489636afa07ff0469aab49ab, 0b5a89e8bce1ea43687742b4de8e216189ff94ac, 357379d504c0c8b0834e206ad8c49e4b3c98ed4d.

Low priority for now. Upgrade to Linux Linux 04dd47a2e169f2d4489636afa07ff0469aab49ab, 0b5a89e8bce1ea43687742b4de8e216189ff94ac, 357379d504c0c8b0834e206ad8c49e4b3c98ed4d 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: 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

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Oct 7, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 5th percentile

Report tools

JSON

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%

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

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When you'll hear from us

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  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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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.

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Affected 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.

VendorProduct
linuxlinux 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.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.4-16.1.4-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • 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 KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2022-50525Oct 7, 2025 · iommu/fsl_pamu: Fix resource leak in fsl_pamu_probe()
    22Monitor
  • ← EarlierCVE-2022-50526Oct 7, 2025 · drm/msm/dp: fix memory corruption with too many bridges
    31Monitor
  • Later →CVE-2022-50530Oct 7, 2025 · blk-mq: fix null pointer dereference in blk_mq_clear_rq_mapping()
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux04dd47a2e169f2d4489636afa07ff0469aab49abVendor (CNA)
Linux Linux0b5a89e8bce1ea43687742b4de8e216189ff94acVendor (CNA)
Linux Linux357379d504c0c8b0834e206ad8c49e4b3c98ed4dVendor (CNA)
Linux Linux628de998a3abfffb3f9677d2fb39a1d5dcb32fdbVendor (CNA)
Linux Linux6dd5fbd243f19f087dc79481acb7d69fb57fea2cVendor (CNA)
Linux Linux7610615e8cdb3f6f5bbd9d8e7a5d8a63e3cabf2eVendor (CNA)
Linux Linux8d8c1d6a430f0aadb80036e2b1bc0a05f9fad247Vendor (CNA)
Linux Linuxed5cbafaf7ce8b86f19998c00eb020c8d49b017fVendor (CNA)
debian:linux6.1.4-1 · Debian:12Package 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.

No history yet (it accumulates with the daily EPSS job).

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 researchers

Finders, 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 Lifetime

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

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records