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Review reviewHigh

CVE-2022-50719

Linux

In the Linux kernel, the following vulnerability has been resolved: ALSA: line6: fix stack overflow in line6_midi_transmit Correctly calculate available space including the size of the chunk buffer. This fixes a buffer overflow when multiple MIDI sysex messages are sent to a PODxt device.

CVSS
7.8
EPSS
0.20%
9.77% percentile
CISA KEV
Not listed
Published
2025.12.24
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.20%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: ALSA: line6: fix stack overflow in line6_midi_transmit Correctly calculate available space including the size of the chunk buffer. This fixes a buffer overflow when multiple MIDI sysex messages are sent to a PODxt device.

Affected product and versions

Product
Linux
Affected versions
>= f2459201c72e8f8553644505eed19954d4c3a023 < b026af92b2cea907c780f7168c730c816cd33311, >= f2459201c72e8f8553644505eed19954d4c3a023 < 49cb7737e733013ec86aa77ed2e19b94a68eaa05, >= f2459201c72e8f8553644505eed19954d4c3a023 < 0c76087449ee4ed45a88b10017d02c6694caedb1, >= f2459201c72e8f8553644505eed19954d4c3a023 < 25e8c6ecb46843a955f254b8f0d77894e4a53dc4, >= f2459201c72e8f8553644505eed19954d4c3a023 < 66f359ad66d49f75d39ac729f9114dabf90b81bb, >= f2459201c72e8f8553644505eed19954d4c3a023 < 0c9118e381ff538874e00fd4e66a768273c150fb, >= f2459201c72e8f8553644505eed19954d4c3a023 < 61e4be4a60cc6de723f8c574ddbcb3025eb44cac, >= f2459201c72e8f8553644505eed19954d4c3a023 < 389d34c2a8b52acc351fd932ed4bea41fee5a39b, >= f2459201c72e8f8553644505eed19954d4c3a023 < b8800d324abb50160560c636bfafe2c81001b66c, >= 3.15
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Not available
CVE-2022-50719 — Linux | SECUFOCUS NOW