Answer in brief
CVE-2026-64491 records a Unknown severity vulnerability in ALSA: usx2y: us144mkii: fix work UAF on disconnect. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=c1bb0c13e430623c26543baae5bb9ae21139db87 <c071df05bcda0e47aac581d4b564b2bebcb1ff60 || >=c1bb0c13e430623c26543baae5bb9ae21139db87 <27161c68d5e78807c9d897db222a775b298d05fd || >=c1bb0c13e430623c26543baae5bb9ae21139db87 <147996e7e7c9e8339c0e04f6fa7ccb3e4d448ff7 | c071df05bcda0e47aac581d4b564b2bebcb1ff60, 27161c68d5e78807c9d897db222a775b298d05fd, 147996e7e7c9e8339c0e04f6fa7ccb3e4d448ff7 |
| Linux/Linuxgeneric | 6.18 | Not reported |
Published upstream
Jul 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 17, 2026
In the Linux kernel, the following vulnerability has been resolved: ALSA: usx2y: us144mkii: fix work UAF on disconnect tascam_disconnect() cancels capture_work and midi_in_work before usb_kill_anchored_urbs() kills the capture/MIDI-in URBs. Those URBs self-resubmit, and their completion handlers reschedule the work. A URB that completes in the small window between cancel_work_sync() and usb_kill_anchored_urbs() therefore re-arms the work after its only cancel. Nothing cancels it again before snd_card_free() frees the card-private tascam structure, so the work handler then runs on freed memory. Kill the anchored URBs before cancelling the work; once the work is cancelled no remaining URB can complete to re-arm it.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-64491 records a Unknown severity vulnerability in ALSA: usx2y: us144mkii: fix work UAF on disconnect. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=c1bb0c13e430623c26543baae5bb9ae21139db87 <c071df05bcda0e47aac581d4b564b2bebcb1ff60 || >=c1bb0c13e430623c26543baae5bb9ae21139db87 <27161c68d5e78807c9d897db222a775b298d05fd || >=c1bb0c13e430623c26543baae5bb9ae21139db87 <147996e7e7c9e8339c0e04f6fa7ccb3e4d448ff7 | c071df05bcda0e47aac581d4b564b2bebcb1ff60, 27161c68d5e78807c9d897db222a775b298d05fd, 147996e7e7c9e8339c0e04f6fa7ccb3e4d448ff7 |
| Linux/Linuxgeneric | 6.18 | Not reported |
Published upstream
Jul 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 17, 2026
In the Linux kernel, the following vulnerability has been resolved: ALSA: usx2y: us144mkii: fix work UAF on disconnect tascam_disconnect() cancels capture_work and midi_in_work before usb_kill_anchored_urbs() kills the capture/MIDI-in URBs. Those URBs self-resubmit, and their completion handlers reschedule the work. A URB that completes in the small window between cancel_work_sync() and usb_kill_anchored_urbs() therefore re-arms the work after its only cancel. Nothing cancels it again before snd_card_free() frees the card-private tascam structure, so the work handler then runs on freed memory. Kill the anchored URBs before cancelling the work; once the work is cancelled no remaining URB can complete to re-arm it.
Quoted source text, attributed separately from HOL analysis.