CVE-2022-50484

Medium

Description

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 buffer, it aborts and goes to the error path that releases the all previously allocated resources. However, when -ENOMEM hits at the middle of the sync EP URB allocation loop, the partially allocated URBs might be left without released, because ep->nurbs is still zero at that point. Fix it by setting ep->nurbs at first, so that the error handler loops over the full URB list.

SeverityMedium
CVSS5.5
Exploit probability—
ProductLinux Kernel
PublishedOct 4, 2025
First seenOct 4, 2025

How to fix

Update
  • linux linux_kernel4.9.331, 4.14.296, 4.19.262, 5.4.220, 5.10.150, 5.15.75, 5.19.17, 6.0.3 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernel3.5 ≤ v < 4.9.331, 4.10 ≤ v < 4.14.296, 4.15 ≤ v < 4.19.262, 4.20 ≤ v < 5.4.220, 5.5 ≤ v < 5.10.150, 5.11 ≤ v < 5.15.75, 5.16 ≤ v < 5.19.17, 6.0 ≤ v < 6.0.34.9.331, 4.14.296, 4.19.262, 5.4.220, 5.10.150, 5.15.75, 5.19.17, 6.0.3

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CVE-2022-50484 · Linux Kernel · Dark Radar