ALSA: usb-audio: Fix potential memory leaks
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.1%
exploitation probability
0.1%top 95% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/0604e5e5537af099ea2f6dfd892afe5c92db8a80https://git.kernel.org/stable/c/0672215994e2347a9b4f145e2bc1709b1e01cee3https://git.kernel.org/stable/c/28d8d267af5d73f91d7640cbdb4024703256e36chttps://git.kernel.org/stable/c/46f0aed47673e275d682af60ed26dcc28add8eaehttps://git.kernel.org/stable/c/6382da0828995af87aa8b8bef28cc61aceb4aff3https://git.kernel.org/stable/c/988ec0cd0a2643c25c1658f7c33de2e15a5a2e31https://git.kernel.org/stable/c/bc1d16d282bca421c6fc31de4b8fd412010f01bdhttps://git.kernel.org/stable/c/e4442410f76d66b9f7e854010bce04853f665324https://git.kernel.org/stable/c/faa8c1ed77d0169955b9b3516b714cc5fb512f27