ALSA: line6: fix stack overflow in line6_midi_transmit

Summary

CVECVE-2022-50719
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-12-24 13:15:58 UTC
Updated2026-10-15 22:17:33 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.002280000 probability, percentile 0.126000000 (date 2026-10-15)


VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected f2459201c72e8f8553644505eed19954d4c3a023 b026af92b2cea907c780f7168c730c816cd33311 git Not specified
CNA Linux Linux affected f2459201c72e8f8553644505eed19954d4c3a023 49cb7737e733013ec86aa77ed2e19b94a68eaa05 git Not specified
CNA Linux Linux affected f2459201c72e8f8553644505eed19954d4c3a023 0c76087449ee4ed45a88b10017d02c6694caedb1 git Not specified
CNA Linux Linux affected f2459201c72e8f8553644505eed19954d4c3a023 25e8c6ecb46843a955f254b8f0d77894e4a53dc4 git Not specified
CNA Linux Linux affected f2459201c72e8f8553644505eed19954d4c3a023 66f359ad66d49f75d39ac729f9114dabf90b81bb git Not specified
CNA Linux Linux affected f2459201c72e8f8553644505eed19954d4c3a023 0c9118e381ff538874e00fd4e66a768273c150fb git Not specified
CNA Linux Linux affected f2459201c72e8f8553644505eed19954d4c3a023 61e4be4a60cc6de723f8c574ddbcb3025eb44cac git Not specified
CNA Linux Linux affected f2459201c72e8f8553644505eed19954d4c3a023 389d34c2a8b52acc351fd932ed4bea41fee5a39b git Not specified
CNA Linux Linux affected f2459201c72e8f8553644505eed19954d4c3a023 b8800d324abb50160560c636bfafe2c81001b66c git Not specified
CNA Linux Linux affected 3.15 Not specified
CNA Linux Linux unaffected 3.15 semver Not specified
CNA Linux Linux unaffected 4.9.337 4.9.* semver Not specified
CNA Linux Linux unaffected 4.14.303 4.14.* semver Not specified
CNA Linux Linux unaffected 4.19.270 4.19.* semver Not specified
CNA Linux Linux unaffected 5.4.229 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.163 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.87 5.15.* semver Not specified
CNA Linux Linux unaffected 6.0.17 6.0.* semver Not specified
CNA Linux Linux unaffected 6.1.3 6.1.* semver Not specified
CNA Linux Linux unaffected 6.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/66f359ad66d49f75d39ac729f9114dabf90b81bb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0c76087449ee4ed45a88b10017d02c6694caedb1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/25e8c6ecb46843a955f254b8f0d77894e4a53dc4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0c9118e381ff538874e00fd4e66a768273c150fb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b026af92b2cea907c780f7168c730c816cd33311 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/389d34c2a8b52acc351fd932ed4bea41fee5a39b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/49cb7737e733013ec86aa77ed2e19b94a68eaa05 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b8800d324abb50160560c636bfafe2c81001b66c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/61e4be4a60cc6de723f8c574ddbcb3025eb44cac 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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