ALSA: ac97: fix a double free in snd_ac97_controller_register()
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7epss 0.1%
exploitation probability
0.1%top 98% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
ALSA: ac97: fix a double free in snd_ac97_controller_register()
If ac97_add_adapter() fails, put_device() is the correct way to drop
the device reference. kfree() is not required.
Add kfree() if idr_alloc() fails and in ac97_adapter_release() to do
the cleanup.
Found by code review.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/21f8bc5179bed91c3f946adb5e55d717b891960chttps://git.kernel.org/stable/c/830988b6cf197e6dcffdfe2008c5738e6c6c3c0fhttps://git.kernel.org/stable/c/c80f9b3349a99a9d5b295f5bbc23f544c5995ad7https://git.kernel.org/stable/c/cb73d37ac18bc1716690ff5255a0ef1952827e9ehttps://git.kernel.org/stable/c/fcc04c92cbb5497ce67c58dd2f0001bb87f40396