5.5

CVE-2022-50484

ALSA: usb-audio: Fix potential memory leaks

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.5 < 4.9.331
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.296
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.262
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.220
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.150
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.75
Linux ≫ Linux Kernel Version >= 5.16 < 5.19.17
Linux ≫ Linux Kernel Version >= 6.0 < 6.0.3
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.037
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.