CVE-2022-50719: ALSA: line6: fix stack overflow in line6_midi_transmit
Vulnerability summary
CVE-2022-50719 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 13.6% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 5 · Related 5Timeline
- 24-12-2025PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
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 metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.23%
Chance of exploitation in the next 30 days
Percentile
14%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.23% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu121 products
- linuxAll versions (No fix recorded) | < 4.15.0-208.220 | < 5.4.0-144.161 | < 5.15.0-69.76
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 4.15.0-1153.166 | < 5.4.0-1097.105 | < 5.15.0-1033.37
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian1 product
- linux< 6.1.4-1
Linux1 product
- linux≥ f2459201c72e8f8553644505eed19954d4c3a023, < b026af92b2cea907c780f7168c730c816cd33311 | ≥ f2459201c72e8f8553644505eed19954d4c3a023, < 49cb7737e733013ec86aa77ed2e19b94a68eaa05 | ≥ f2459201c72e8f8553644505eed19954d4c3a023, < 0c76087449ee4ed45a88b10017d02c6694caedb1 | ≥ f2459201c72e8f8553644505eed19954d4c3a023, < 25e8c6ecb46843a955f254b8f0d77894e4a53dc4 | ≥ f2459201c72e8f8553644505eed19954d4c3a023, < 66f359ad66d49f75d39ac729f9114dabf90b81bb | ≥ f2459201c72e8f8553644505eed19954d4c3a023, < 0c9118e381ff538874e00fd4e66a768273c150fb | ≥ f2459201c72e8f8553644505eed19954d4c3a023, < 61e4be4a60cc6de723f8c574ddbcb3025eb44cac | ≥ f2459201c72e8f8553644505eed19954d4c3a023, < 389d34c2a8b52acc351fd932ed4bea41fee5a39b | ≥ f2459201c72e8f8553644505eed19954d4c3a023, < b8800d324abb50160560c636bfafe2c81001b66c | 3.15
3 vendors · 123 products