CVE-2022-50719

Kernel memory corruption via oversized MIDI chunk

Published Dec 24, 2025 · Updated Dec 24, 2025

Stack buffer overflow in Linux 3.15 through 6.1.2 allows local users to corrupt kernel memory by writing MIDI data to a PODxt. line6_midi_transmit passes max_packet_size to snd_rawmidi_transmit_peek without limiting the request to its 16-byte chunk array. A Line 6 CONTROL_MIDI device must be bound, and the user needs write access to its ALSA raw-MIDI node; corruption can panic the kernel or enable kernel-mode code execution.

CVSS severity7.8
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack buffer overflow in Linux 3.15 through 6.1.2 allows local users to corrupt kernel memory by writing MIDI data to a PODxt. line6_midi_transmit passes max_packet_size to snd_rawmidi_transmit_peek without limiting the request to its 16-byte chunk array. A Line 6 CONTROL_MIDI device must be bound, and the user needs write access to its ALSA raw-MIDI node; corruption can panic the kernel or enable kernel-mode code execution.

The record

CVE
CVE-2022-50719
Published
Dec 24, 2025
Updated
Dec 24, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1068
Attack vector
local
Privileges
authenticated

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?

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

  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0c76087449ee4ed45a88b10017d02c6694caedb1
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0c9118e381ff538874e00fd4e66a768273c150fb
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <25e8c6ecb46843a955f254b8f0d77894e4a53dc4
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <389d34c2a8b52acc351fd932ed4bea41fee5a39b
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <49cb7737e733013ec86aa77ed2e19b94a68eaa05
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <61e4be4a60cc6de723f8c574ddbcb3025eb44cac
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <66f359ad66d49f75d39ac729f9114dabf90b81bb
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b026af92b2cea907c780f7168c730c816cd33311
  9. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b8800d324abb50160560c636bfafe2c81001b66c

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0c76087449ee4ed45a88b10017d02c6694caedb1; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0c9118e381ff538874e00fd4e66a768273c150fb; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <25e8c6ecb46843a955f254b8f0d77894e4a53dc4; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <389d34c2a8b52acc351fd932ed4bea41fee5a39b; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <49cb7737e733013ec86aa77ed2e19b94a68eaa05; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <61e4be4a60cc6de723f8c574ddbcb3025eb44cac; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <66f359ad66d49f75d39ac729f9114dabf90b81bb; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b026af92b2cea907c780f7168c730c816cd33311; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b8800d324abb50160560c636bfafe2c81001b66c

Published CVSS scores

7.8Linux Kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.1SUSECVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/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

T1068Exploitation for Privilege Escalation

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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