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NVD / CVE Program· CNA Linux

CVE-2022-50389: tpm: tpm_crb: Add the missed acpi_put_table() to fix memory leak

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 08fd965521d0e172d540cf945517810895fcb199, 0bd9b4be721c776f77adcaf34105dfca3007ddb9, 1af2232b13837ce0f3a082b9f43735b09aafc367.

Low priority for now. Upgrade to Linux Linux 08fd965521d0e172d540cf945517810895fcb199, 0bd9b4be721c776f77adcaf34105dfca3007ddb9, 1af2232b13837ce0f3a082b9f43735b09aafc367 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: tpm: tpm_crb: Add the missed acpi_put_table() to fix memory leak In crb_acpi_add(), we get the TPM2 table to retrieve information like start method, and then assign them to the priv data, so the TPM2 table is not used after the init, should be freed, call acpi_put_table() to fix the memory leak.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Sep 18, 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%

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.

Follow CVE-2022-50389

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • 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 kernel4.0 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 5.15.87
  • linux linux kernel5.16 and later · before 6.0.17
  • linux linux kernel6.1 and later · before 6.1.3

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

    • 4.0affected
    • 30fc8d138e9123f374a3c3867e7c7c5cd4004941 and later · before 08fd965521d0e172d540cf945517810895fcb199affected · git
    • 30fc8d138e9123f374a3c3867e7c7c5cd4004941 and later · before 1af2232b13837ce0f3a082b9f43735b09aafc367affected · git
    • 30fc8d138e9123f374a3c3867e7c7c5cd4004941 and later · before 927860dfa161ae8392a264197257dbdc52b26b0faffected · git
    • 30fc8d138e9123f374a3c3867e7c7c5cd4004941 and later · before 0bd9b4be721c776f77adcaf34105dfca3007ddb9affected · git
    • 30fc8d138e9123f374a3c3867e7c7c5cd4004941 and later · before 986cd9a9b95423e35a2cbb8e9105aec0e0d7f337affected · git
    • 30fc8d138e9123f374a3c3867e7c7c5cd4004941 and later · before 2fcd3dc8b97a14f1672729c86b7041a1a89b052aaffected · git
    • 30fc8d138e9123f374a3c3867e7c7c5cd4004941 and later · before b0785edaf649e5f04dc7f75533e810f4c00e4106affected · git
    • 30fc8d138e9123f374a3c3867e7c7c5cd4004941 and later · before 37e90c374dd11cf4919c51e847c6d6ced0abc555affected · git
    • before 4.0not 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-2022-50387Sep 18, 2025 · net: hinic: fix the issue of CMDQ memory leaks
    22Monitor
  • ← EarlierCVE-2022-50388Sep 18, 2025 · nvme: fix multipath crash caused by flush request when blktrace is enabled
    22Monitor
  • Later →CVE-2022-50390Sep 18, 2025 · drm/ttm: fix undefined behavior in bit shift for TTM_TT_FLAG_PRIV_POPULATED
    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 Linux08fd965521d0e172d540cf945517810895fcb199Vendor (CNA)
Linux Linux0bd9b4be721c776f77adcaf34105dfca3007ddb9Vendor (CNA)
Linux Linux1af2232b13837ce0f3a082b9f43735b09aafc367Vendor (CNA)
Linux Linux2fcd3dc8b97a14f1672729c86b7041a1a89b052aVendor (CNA)
Linux Linux37e90c374dd11cf4919c51e847c6d6ced0abc555Vendor (CNA)
Linux Linux927860dfa161ae8392a264197257dbdc52b26b0fVendor (CNA)
Linux Linux986cd9a9b95423e35a2cbb8e9105aec0e0d7f337Vendor (CNA)
Linux Linuxb0785edaf649e5f04dc7f75533e810f4c00e4106Vendor (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