CVE-2026-64491: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: c1bb0c13e430623c26543baae5bb9ae21139db87 преди c071df05bcda0e47aac581d4b564b2bebcb1ff60; c1bb0c13e430623c26543baae5bb9ae21139db87 преди 27161c68d5e78807c9d897db222a775b298d05fd; c1bb0c13e430623c26543baae5bb9ae21139db87 преди 147996e7e7c9e8339c0e04f6fa7ccb3e4d448ff7
• Linux Linux: 6.18; преди 6.18; 6.18.39 до 6.18.*; 7.1.4 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-64491
• https://nvd.nist.gov/vuln/detail/CVE-2026-64491
• https://git.kernel.org/stable/c/c071df05bcda0e47aac581d4b564b2bebcb1ff60
• https://git.kernel.org/stable/c/27161c68d5e78807c9d897db222a775b298d05fd
• https://git.kernel.org/stable/c/147996e7e7c9e8339c0e04f6fa7ccb3e4d448ff7