CVE-2022-50484
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.
How to fix
- 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
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 3.5 ≤ 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 < 6.0.3 | 4.9.331, 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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