ALSA: pcm: oss: Limit the period size to 16MB
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.5epss 0.2%
exploitation probability
0.2%top 86% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
ALSA: pcm: oss: Limit the period size to 16MB
Set the practical limit to the period size (the fragment shift in OSS)
instead of a full 31bit; a too large value could lead to the exhaust
of memory as we allocate temporary buffers of the period size, too.
As of this patch, we set to 16MB limit, which should cover all use
cases.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/2e54cf6794bf82a54aaefc78da13819aea9cd28ahttps://git.kernel.org/stable/c/35a3e511032146941085f87dd9fb5b82ea5c00a2https://git.kernel.org/stable/c/76f19e4cbb548e28547f8c328aa0bfb3a10222d3https://git.kernel.org/stable/c/8839c8c0f77ab8fc0463f4ab8b37fca3f70677c2https://git.kernel.org/stable/c/ad45babf7886e7a212ee1d5eda9ef49f696db43chttps://git.kernel.org/stable/c/b02a41eebcc36d4f07196780f2e165ca2c499257https://git.kernel.org/stable/c/be55f306396cd62c6889286a7194fd8b53363aebhttps://git.kernel.org/stable/c/d1bb703ad050de9095f10b2d3416c32921ac6bcc