CVE-2022-50532

Kernel crash via unfreed SAS remote PHY

Published Oct 7, 2025 · Updated Oct 7, 2025

A resource leak in the Linux kernel mpt3sas SCSI driver allows local users to crash the kernel during SAS device removal. Memory cleanup fails in mpt3sas_transport_port_add() when sas_rphy_add() returns an error because sas_rphy_free() is omitted for the object allocated by sas_end_device_alloc(). Reaching the crash requires low-privileged local access, an add failure, and later removal of the unregistered PHY; the reported consequence is a NULL-pointer kernel crash.

CVSS severity5.5
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

A resource leak in the Linux kernel mpt3sas SCSI driver allows local users to crash the kernel during SAS device removal. Memory cleanup fails in mpt3sas_transport_port_add() when sas_rphy_add() returns an error because sas_rphy_free() is omitted for the object allocated by sas_end_device_alloc(). Reaching the crash requires low-privileged local access, an add failure, and later removal of the unregistered PHY; the reported consequence is a NULL-pointer kernel crash.

The record

CVE
CVE-2022-50532
Published
Oct 7, 2025
Updated
Oct 7, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 7, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.8
  2. Affected versionversion=f92363d12359498f9a9960511de1a550f0ec41c2 <6a92129c8f999ff5b122c100ce7f625eb3e98c4b
  3. Affected versionversion=f92363d12359498f9a9960511de1a550f0ec41c2 <6f6768e2fc8638fabdd8802c2ef693d7aef01db1
  4. Affected versionversion=f92363d12359498f9a9960511de1a550f0ec41c2 <78316e9dfc24906dd474630928ed1d3c562b568e
  5. Affected versionversion=f92363d12359498f9a9960511de1a550f0ec41c2 <ce1a69cc85006b494353911b35171da195d79e25
  6. Affected versionversion=f92363d12359498f9a9960511de1a550f0ec41c2 <d17bca3ddfe507874cb826d32721552da12e741f
  7. Affected versionversion=f92363d12359498f9a9960511de1a550f0ec41c2 <d60000cb1195a464080b0efb4949daf7594e0020

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=3.8; version=f92363d12359498f9a9960511de1a550f0ec41c2 <6a92129c8f999ff5b122c100ce7f625eb3e98c4b; version=f92363d12359498f9a9960511de1a550f0ec41c2 <6f6768e2fc8638fabdd8802c2ef693d7aef01db1; version=f92363d12359498f9a9960511de1a550f0ec41c2 <78316e9dfc24906dd474630928ed1d3c562b568e; version=f92363d12359498f9a9960511de1a550f0ec41c2 <ce1a69cc85006b494353911b35171da195d79e25; version=f92363d12359498f9a9960511de1a550f0ec41c2 <d17bca3ddfe507874cb826d32721552da12e741f; version=f92363d12359498f9a9960511de1a550f0ec41c2 <d60000cb1195a464080b0efb4949daf7594e0020

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime
T1499Endpoint Denial of Service

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo