CVE-2022-50729

Resource leak via unreleased ksmbd IPC identifier

Published Dec 24, 2025 · Updated Dec 24, 2025

Resource leak in Linux kernel 5.15 allows attackers to retain a ksmbd IPC identifier after an RPC-open failure via unspecified vectors. In ksmbd_session_rpc_open(), a failed ksmbd_rpc_open() call leaves the identifier allocated by ksmbd_ipc_id_alloc() because the error path omits ksmbd_rpc_id_free(). Linux has not published how an attacker forces that failure or what operational consequence follows from repeatedly retained identifiers.

CVSS severityUnavailable
Unscored
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource leak in Linux kernel 5.15 allows attackers to retain a ksmbd IPC identifier after an RPC-open failure via unspecified vectors. In ksmbd_session_rpc_open(), a failed ksmbd_rpc_open() call leaves the identifier allocated by ksmbd_ipc_id_alloc() because the error path omits ksmbd_rpc_id_free(). Linux has not published how an attacker forces that failure or what operational consequence follows from repeatedly retained identifiers.

The record

CVE
CVE-2022-50729
Published
Dec 24, 2025
Updated
Dec 24, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=5.15
  2. Affected versionversion=e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <31c1b5d3000cdff70b98d5af045271e09079bec1
  3. Affected versionversion=e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <9cb49b95c05df09b369d1ec1f378b5c92109433c
  4. Affected versionversion=e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <bc044414fa0326a4e5c3c509c00b1fcaf621b5f4
  5. Affected versionversion=e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <f9ed133381eba883c5e0059063d5b3ca7cac6d41

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=5.15; version=e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <31c1b5d3000cdff70b98d5af045271e09079bec1; version=e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <9cb49b95c05df09b369d1ec1f378b5c92109433c; version=e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <bc044414fa0326a4e5c3c509c00b1fcaf621b5f4; version=e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <f9ed133381eba883c5e0059063d5b3ca7cac6d41

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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