Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the ALSA usb-audio library’s convertchmapv3 function not verifying the csdesc-wLength value,...

PT-2026-44269

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the ALSA usb-audio component within the convert chmap v3 function. The function contains a loop that uses the cs desc-wLength variable to determine the increment size...

CVE-2026-46018

A flaw was found in the Linux kernel's Advanced Linux Sound Architecture ALSA USB audio driver. A malicious Universal Serial Bus USB audio device could send a malformed Universal Audio Class 2 UAC2 RANGE response. This could cause the system to repeatedly print error messages and potentially lead...

CVE-2026-46018

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: stop parsing UAC2 rates at MAXNRRATES parseuac2sampleraterange caps the number of enumerated rates at MAXNRRATES, but it only breaks out of the current rate loop. A malformed UAC2 RANGE response with additional...

UBUNTU-CVE-2026-46018

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: stop parsing UAC2 rates at MAXNRRATES parseuac2sampleraterange caps the number of enumerated rates at MAXNRRATES, but it only breaks out of the current rate loop. A malformed UAC2 RANGE response with additional...

CVE-2026-46018

CVE-2026-46018 is a Linux kernel issue in ALSA: usb-audio (UAC2) where parse_uac2_sample_rate_range() capped at MAX_NR_RATES but only broke the inner loop; a malformed UAC2 RANGE could continue parsing and flood with "invalid uac2 rates". The fix stops the whole parse at the cap and returns the c...

CVE-2026-46018 ALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: stop parsing UAC2 rates at MAXNRRATES parseuac2sampleraterange caps the number of enumerated rates at MAXNRRATES, but it only breaks out of the current rate loop. A malformed UAC2 RANGE response with additional...

CVE-2026-46018

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: stop parsing UAC2 rates at MAXNRRATES parseuac2sampleraterange caps the number of enumerated rates at MAXNRRATES, but it only breaks out of the current rate loop. A malformed UAC2 RANGE response with additional...

PT-2026-43885

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ALSA USB audio component where the parse uac2 sample rate range function fails to fully terminate parsing when the number of enumerated rates reaches MAX NR RATES...

CVE-2026-46018

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: stop parsing UAC2 rates at MAXNRRATES parseuac2sampleraterange caps the number of enumerated rates at MAXNRRATES, but it only breaks out of the current rate loop. A malformed UAC2 RANGE response with additional...

Linux Distros Unpatched Vulnerability : CVE-2026-46018

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ALSA: usb-audio: stop parsing UAC2 rates at MAXNRRATES parseuac2sampleraterange caps the number of enumerated rates at MAXNRRATES, but it only breaks out of the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fixed potential memory leaks at the error handling path for UMP operations. The allocation and initialization errors in allocmidiurbs, which occur when the function is called during MIDI 2.0/UMP device operations...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: fixed a race condition that could lead to UAF in sndusbmidifree. The previous commit 0718a78f6a9f “ALSA: usb-audio: Properly terminates the timer upon endpoint deletion” fixed an UAF issue caused by the error...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021562)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021562 advisory. In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix potential memory leaks When the driver hits -ENOMEM at allocating a URB or a...

SUSE CVE-2026-43436

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces The Scarlett2 mixer quirk in USB-audio driver may hit a NULL dereference when a malformed USB descriptor is passed, since it assumes the presence of an...

CVE-2026-43436

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces The Scarlett2 mixer quirk in USB-audio driver may hit a NULL dereference when a malformed USB descriptor is passed, since it assumes the presence of an...

CVE-2026-43436

The CVE-2026-43436 vulnerability affects the Linux kernel ALSA USB-audio driver (Scarlett2 mixer quirk). A malformed USB descriptor can trigger a NULL dereference in scarlett2_find_fc_interface() due to assuming an endpoint exists. The patch adds a sanity check for bNumEndpoints and skips invalid...

CVE-2026-43436

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces The Scarlett2 mixer quirk in USB-audio driver may hit a NULL dereference when a malformed USB descriptor is passed, since it assumes the presence of an...

CVE-2026-43436 ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces The Scarlett2 mixer quirk in USB-audio driver may hit a NULL dereference when a malformed USB descriptor is passed, since it assumes the presence of an...

Linux Distros Unpatched Vulnerability : CVE-2026-43436

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces The Scarlett2 mixer quirk in USB-audio driver may hit a NULL dereference when a...