CVE-2022-48824

Kernel crash via NULL cleanup callback

Published Jul 16, 2024 · Updated May 11, 2026

NULL pointer dereference in the Linux kernel myrs SCSI driver from 4.20 allows local users to crash the kernel during controller initialization. During myrs_detect(), a nonzero hardware-initialization failure leaves cs->disable_intr unset, but myrs_cleanup() calls it unconditionally. The failure path requires a myrs-managed SCSI controller initialization error and causes a kernel crash without reported data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the Linux kernel myrs SCSI driver from 4.20 allows local users to crash the kernel during controller initialization. During myrs_detect(), a nonzero hardware-initialization failure leaves cs->disable_intr unset, but myrs_cleanup() calls it unconditionally. The failure path requires a myrs-managed SCSI controller initialization error and causes a kernel crash without reported data disclosure or modification.

The record

CVE
CVE-2022-48824
Published
Jul 16, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 16, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=4.20
  2. Affected versionversion=77266186397c6c782a3f670d32808a9671806ec5 <0e42c4a3d732517edc3766dd45a14e60d29dd929
  3. Affected versionversion=77266186397c6c782a3f670d32808a9671806ec5 <1d6cd26605b4d662063a83c15c776b5299a1cb23
  4. Affected versionversion=77266186397c6c782a3f670d32808a9671806ec5 <4db09593af0b0b4d7d4805ebb3273df51d7cc30d
  5. Affected versionversion=77266186397c6c782a3f670d32808a9671806ec5 <5c5ceea00c8c9df150708e66cb9f2891192c1162
  6. Affected versionversion=77266186397c6c782a3f670d32808a9671806ec5 <6207f35c213f6cb2fc3f13b5e77f08c710e1de19

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.20; version=77266186397c6c782a3f670d32808a9671806ec5 <0e42c4a3d732517edc3766dd45a14e60d29dd929; version=77266186397c6c782a3f670d32808a9671806ec5 <1d6cd26605b4d662063a83c15c776b5299a1cb23; version=77266186397c6c782a3f670d32808a9671806ec5 <4db09593af0b0b4d7d4805ebb3273df51d7cc30d; version=77266186397c6c782a3f670d32808a9671806ec5 <5c5ceea00c8c9df150708e66cb9f2891192c1162; version=77266186397c6c782a3f670d32808a9671806ec5 <6207f35c213f6cb2fc3f13b5e77f08c710e1de19

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.

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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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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