https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 29 Sep 2026 23:48:39 +0000 https://vulnerability.circl.lu/vuln/cve-2025-39997 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ALSA: usb-audio: fix race condition to UAF in snd_usbmidi_free</p> <p>The previous commit 0718a78f6a9f (&#34;ALSA: usb-audio: Kill timer properly at removal&#34;) patched a UAF issue caused by the error timer.</p> <p>However, because the error timer kill added in this patch occurs after the endpoint delete, a race condition to UAF still occurs, albeit rarely.</p> <p>Additionally, since kill-cleanup for urb is also missing, freed memory can be accessed in interrupt context related to urb, which can cause UAF.</p> <p>Therefore, to prevent this, error timer and urb must be killed before freeing the heap memory.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ALSA: usb-audio: fix race condition to UAF in snd_usbmidi_free</p> <p>The previous commit 0718a78f6a9f (&#34;ALSA: usb-audio: Kill timer properly at removal&#34;) patched a UAF issue caused by the error timer.</p> <p>However, because the error timer kill added in this patch occurs after the endpoint delete, a race condition to UAF still occurs, albeit rarely.</p> <p>Additionally, since kill-cleanup for urb is also missing, freed memory can be accessed in interrupt context related to urb, which can cause UAF.</p> <p>Therefore, to prevent this, error timer and urb must be killed before freeing the heap memory.</p> https://vulnerability.circl.lu/vuln/cve-2025-39997